Last login: Tue May 28 10:41:57 on ttys000
MacBook-Pro-2:~ wphun1$ pip install python-sat
Collecting python-sat
  Using cached https://files.pythonhosted.org/packages/ae/d5/3ca4418c991b3fc3a65a927549d09090caf5eaa59813c46ba1e04845e680/python-sat-0.1.4.dev10.tar.gz
Collecting pypblib>=0.0.3 (from python-sat)
  Using cached https://files.pythonhosted.org/packages/fb/f6/967cc8b9ea80c2a8e00913225de46d435ef441243ad1dd0a57935cc1d863/pypblib-0.0.4.tar.gz
Requirement already satisfied: six in /usr/local/anaconda3/lib/python3.7/site-packages (from python-sat) (1.12.0)
Building wheels for collected packages: python-sat, pypblib
  Building wheel for python-sat (setup.py) ... error
  Complete output from command /usr/local/anaconda3/bin/python -u -c "import setuptools, tokenize;__file__='/private/var/folders/cy/bwkh61td0dl34kq4z3glqwww0000gn/T/pip-install-a718izzn/python-sat/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" bdist_wheel -d /private/var/folders/cy/bwkh61td0dl34kq4z3glqwww0000gn/T/pip-wheel-j7eypjtj --python-tag cp37:
  running bdist_wheel
  running build
  preparing glucose30
  downloading: solvers/glucose30.tar.gz (50813 bytes)... done
  extracting solvers/glucose30.tar.gz
  adapting glucose30's files
  patching glucose30
  patching file solvers/glucose30/Makefile
  patching file solvers/glucose30/core/BoundedQueue.h
  patching file solvers/glucose30/core/Solver.cc
  patching file solvers/glucose30/core/Solver.h
  patching file solvers/glucose30/core/SolverTypes.h
  patching file solvers/glucose30/mtl/Alg.h
  patching file solvers/glucose30/mtl/Alloc.h
  patching file solvers/glucose30/mtl/Heap.h
  patching file solvers/glucose30/mtl/IntTypes.h
  patching file solvers/glucose30/mtl/Map.h
  patching file solvers/glucose30/mtl/Queue.h
  patching file solvers/glucose30/mtl/Sort.h
  patching file solvers/glucose30/mtl/Vec.h
  patching file solvers/glucose30/mtl/XAlloc.h
  patching file solvers/glucose30/utils/Options.cc
  patching file solvers/glucose30/utils/Options.h
  patching file solvers/glucose30/utils/ParseUtils.h
  patching file solvers/glucose30/utils/System.cc
  patching file solvers/glucose30/utils/System.h
  compiling glucose30
  c++ -std=c++11 -fPIC -Wall -Wno-deprecated -fno-strict-aliasing -I.. -O3 -DNDEBUG -c core/Solver.cc -o core/Solver.o
  c++ -std=c++11 -fPIC -Wall -Wno-deprecated -fno-strict-aliasing -I.. -O3 -DNDEBUG -c utils/Options.cc -o utils/Options.o
  c++ -std=c++11 -fPIC -Wall -Wno-deprecated -fno-strict-aliasing -I.. -O3 -DNDEBUG -c utils/System.cc -o utils/System.o
  preparing glucose41
  downloading: solvers/glucose41.tar.gz (82779 bytes)... done
  extracting solvers/glucose41.tar.gz
  adapting glucose41's files
  patching glucose41
  patching file solvers/glucose41/Makefile
  patching file solvers/glucose41/core/BoundedQueue.h
  patching file solvers/glucose41/core/Solver.cc
  patching file solvers/glucose41/core/Solver.h
  patching file solvers/glucose41/core/SolverStats.h
  patching file solvers/glucose41/core/SolverTypes.h
  patching file solvers/glucose41/mtl/Alg.h
  patching file solvers/glucose41/mtl/Alloc.h
  patching file solvers/glucose41/mtl/Clone.h
  patching file solvers/glucose41/mtl/Heap.h
  patching file solvers/glucose41/mtl/IntTypes.h
  patching file solvers/glucose41/mtl/Map.h
  patching file solvers/glucose41/mtl/Queue.h
  patching file solvers/glucose41/mtl/Sort.h
  patching file solvers/glucose41/mtl/Vec.h
  patching file solvers/glucose41/mtl/VecThreads.h
  patching file solvers/glucose41/mtl/XAlloc.h
  patching file solvers/glucose41/utils/Options.cc
  patching file solvers/glucose41/utils/Options.h
  patching file solvers/glucose41/utils/ParseUtils.h
  patching file solvers/glucose41/utils/System.cc
  patching file solvers/glucose41/utils/System.h
  compiling glucose41
  c++ -std=c++11 -fPIC -Wall -Wno-deprecated -fno-strict-aliasing -DINCREMENTAL -I.. -O3 -DNDEBUG -c core/Solver.cc -o core/Solver.o
  c++ -std=c++11 -fPIC -Wall -Wno-deprecated -fno-strict-aliasing -DINCREMENTAL -I.. -O3 -DNDEBUG -c utils/Options.cc -o utils/Options.o
  c++ -std=c++11 -fPIC -Wall -Wno-deprecated -fno-strict-aliasing -DINCREMENTAL -I.. -O3 -DNDEBUG -c utils/System.cc -o utils/System.o
  preparing lingeling
  downloading: solvers/lingeling.tar.gz (501731 bytes)... done
  extracting solvers/lingeling.tar.gz
  adapting lingeling's files
  extracting solvers/lingeling/druplig-009.zip
  extracting solvers/lingeling/lingeling-bbc-9230380-160707.tar.gz
  patching lingeling
  patching file solvers/lingeling/Makefile
  patching file solvers/lingeling/druplig.h
  patching file solvers/lingeling/lglib.c
  patching file solvers/lingeling/lglib.h
  patching file solvers/lingeling/lglopts.h
  compiling lingeling
  cc -fPIC -Wall -Wno-deprecated -fno-strict-aliasing -I. -DNLGLOG -DNDEBUG -DNCHKSOL -DNLGLYALSAT -DNLGLFILES -DNLGLDEMA -DVERSION=\"PYSAT\" -c lglib.c -o lglib.o
  cc -fPIC -Wall -Wno-deprecated -fno-strict-aliasing -I. -DNLGLOG -DNDEBUG -DNCHKSOL -DNLGLYALSAT -DNLGLFILES -DNLGLDEMA -DVERSION=\"PYSAT\" -c lglopts.c -o lglopts.o
  cc -fPIC -Wall -Wno-deprecated -fno-strict-aliasing -I. -DNLGLOG -DNDEBUG -DNCHKSOL -DNLGLYALSAT -DNLGLFILES -DNLGLDEMA -DVERSION=\"PYSAT\" -c druplig.c -o druplig.o
  preparing maplechrono
  downloading: solvers/maplechrono.zip (82656 bytes)... done
  extracting solvers/maplechrono.zip
  adapting maplechrono's files
  patching maplechrono
  patching file solvers/maplechrono/Makefile
  patching file solvers/maplechrono/core/Solver.cc
  patching file solvers/maplechrono/core/Solver.h
  patching file solvers/maplechrono/core/SolverTypes.h
  patching file solvers/maplechrono/mtl/Alg.h
  patching file solvers/maplechrono/mtl/Alloc.h
  patching file solvers/maplechrono/mtl/Heap.h
  patching file solvers/maplechrono/mtl/IntTypes.h
  patching file solvers/maplechrono/mtl/Map.h
  patching file solvers/maplechrono/mtl/Queue.h
  patching file solvers/maplechrono/mtl/Sort.h
  patching file solvers/maplechrono/mtl/Vec.h
  patching file solvers/maplechrono/mtl/XAlloc.h
  patching file solvers/maplechrono/utils/Options.cc
  patching file solvers/maplechrono/utils/Options.h
  patching file solvers/maplechrono/utils/ParseUtils.h
  patching file solvers/maplechrono/utils/System.cc
  patching file solvers/maplechrono/utils/System.h
  compiling maplechrono
  c++ -std=c++11 -fPIC -Wall -Wno-deprecated -fno-strict-aliasing -I.. -O3 -DNDEBUG -c core/Solver.cc -o core/Solver.o
  c++ -std=c++11 -fPIC -Wall -Wno-deprecated -fno-strict-aliasing -I.. -O3 -DNDEBUG -c utils/Options.cc -o utils/Options.o
  c++ -std=c++11 -fPIC -Wall -Wno-deprecated -fno-strict-aliasing -I.. -O3 -DNDEBUG -c utils/System.cc -o utils/System.o
  preparing maplecm
  downloading: solvers/maplecm.zip (94949 bytes)... done
  extracting solvers/maplecm.zip
  adapting maplecm's files
  patching maplecm
  patching file solvers/maplecm/Makefile
  patching file solvers/maplecm/core/Solver.cc
  patching file solvers/maplecm/core/Solver.h
  patching file solvers/maplecm/core/SolverTypes.h
  patching file solvers/maplecm/mtl/Alg.h
  patching file solvers/maplecm/mtl/Alloc.h
  patching file solvers/maplecm/mtl/Heap.h
  patching file solvers/maplecm/mtl/IntTypes.h
  patching file solvers/maplecm/mtl/Map.h
  patching file solvers/maplecm/mtl/Queue.h
  patching file solvers/maplecm/mtl/Sort.h
  patching file solvers/maplecm/mtl/Vec.h
  patching file solvers/maplecm/mtl/XAlloc.h
  patching file solvers/maplecm/utils/Options.cc
  patching file solvers/maplecm/utils/Options.h
  patching file solvers/maplecm/utils/ParseUtils.h
  patching file solvers/maplecm/utils/System.cc
  patching file solvers/maplecm/utils/System.h
  compiling maplecm
  c++ -std=c++11 -fPIC -Wall -Wno-deprecated -fno-strict-aliasing -I.. -O3 -DNDEBUG -c core/Solver.cc -o core/Solver.o
  c++ -std=c++11 -fPIC -Wall -Wno-deprecated -fno-strict-aliasing -I.. -O3 -DNDEBUG -c utils/Options.cc -o utils/Options.o
  c++ -std=c++11 -fPIC -Wall -Wno-deprecated -fno-strict-aliasing -I.. -O3 -DNDEBUG -c utils/System.cc -o utils/System.o
  preparing maplesat
  downloading: solvers/maplesat.zip (77088 bytes)... done
  extracting solvers/maplesat.zip
  adapting maplesat's files
  patching maplesat
  patching file solvers/maplesat/Makefile
  patching file solvers/maplesat/core/Solver.cc
  patching file solvers/maplesat/core/Solver.h
  patching file solvers/maplesat/core/SolverTypes.h
  patching file solvers/maplesat/mtl/Alg.h
  patching file solvers/maplesat/mtl/Alloc.h
  patching file solvers/maplesat/mtl/Heap.h
  patching file solvers/maplesat/mtl/IntTypes.h
  patching file solvers/maplesat/mtl/Map.h
  patching file solvers/maplesat/mtl/Queue.h
  patching file solvers/maplesat/mtl/Sort.h
  patching file solvers/maplesat/mtl/Vec.h
  patching file solvers/maplesat/mtl/XAlloc.h
  patching file solvers/maplesat/utils/Options.cc
  patching file solvers/maplesat/utils/Options.h
  patching file solvers/maplesat/utils/ParseUtils.h
  patching file solvers/maplesat/utils/System.cc
  patching file solvers/maplesat/utils/System.h
  compiling maplesat
  c++ -std=c++11 -fPIC -Wall -Wno-deprecated -fno-strict-aliasing -I.. -O3 -DNDEBUG -c core/Solver.cc -o core/Solver.o
  c++ -std=c++11 -fPIC -Wall -Wno-deprecated -fno-strict-aliasing -I.. -O3 -DNDEBUG -c utils/Options.cc -o utils/Options.o
  c++ -std=c++11 -fPIC -Wall -Wno-deprecated -fno-strict-aliasing -I.. -O3 -DNDEBUG -c utils/System.cc -o utils/System.o
  preparing minicard
  downloading: solvers/minicard.tar.gz (1529188 bytes)... done
  extracting solvers/minicard.tar.gz
  adapting minicard's files
  patching minicard
  patching file solvers/minicard/Makefile
  patching file solvers/minicard/core/Solver.cc
  patching file solvers/minicard/core/Solver.h
  patching file solvers/minicard/core/SolverTypes.h
  patching file solvers/minicard/mtl/Alg.h
  patching file solvers/minicard/mtl/Alloc.h
  patching file solvers/minicard/mtl/Heap.h
  patching file solvers/minicard/mtl/IntTypes.h
  patching file solvers/minicard/mtl/Map.h
  patching file solvers/minicard/mtl/Queue.h
  patching file solvers/minicard/mtl/Sort.h
  patching file solvers/minicard/mtl/Vec.h
  patching file solvers/minicard/mtl/XAlloc.h
  patching file solvers/minicard/utils/Options.cc
  patching file solvers/minicard/utils/Options.h
  patching file solvers/minicard/utils/ParseUtils.h
  patching file solvers/minicard/utils/System.cc
  patching file solvers/minicard/utils/System.h
  compiling minicard
  c++ -std=c++11 -fPIC -Wall -Wno-deprecated -fno-strict-aliasing -I.. -O3 -DNDEBUG -c core/Solver.cc -o core/Solver.o
  c++ -std=c++11 -fPIC -Wall -Wno-deprecated -fno-strict-aliasing -I.. -O3 -DNDEBUG -c utils/Options.cc -o utils/Options.o
  c++ -std=c++11 -fPIC -Wall -Wno-deprecated -fno-strict-aliasing -I.. -O3 -DNDEBUG -c utils/System.cc -o utils/System.o
  preparing minisat22
  downloading: solvers/minisat22.tar.gz (43879 bytes)... done
  extracting solvers/minisat22.tar.gz
  adapting minisat22's files
  patching minisat22
  patching file solvers/minisat22/Makefile
  patching file solvers/minisat22/core/Solver.cc
  patching file solvers/minisat22/core/Solver.h
  patching file solvers/minisat22/core/SolverTypes.h
  patching file solvers/minisat22/mtl/Alg.h
  patching file solvers/minisat22/mtl/Alloc.h
  patching file solvers/minisat22/mtl/Heap.h
  patching file solvers/minisat22/mtl/IntTypes.h
  patching file solvers/minisat22/mtl/Map.h
  patching file solvers/minisat22/mtl/Queue.h
  patching file solvers/minisat22/mtl/Sort.h
  patching file solvers/minisat22/mtl/Vec.h
  patching file solvers/minisat22/mtl/XAlloc.h
  patching file solvers/minisat22/utils/Options.cc
  patching file solvers/minisat22/utils/Options.h
  patching file solvers/minisat22/utils/ParseUtils.h
  patching file solvers/minisat22/utils/System.cc
  patching file solvers/minisat22/utils/System.h
  compiling minisat22
  c++ -std=c++11 -fPIC -Wall -Wno-deprecated -fno-strict-aliasing -I.. -O3 -DNDEBUG -c core/Solver.cc -o core/Solver.o
  c++ -std=c++11 -fPIC -Wall -Wno-deprecated -fno-strict-aliasing -I.. -O3 -DNDEBUG -c utils/Options.cc -o utils/Options.o
  c++ -std=c++11 -fPIC -Wall -Wno-deprecated -fno-strict-aliasing -I.. -O3 -DNDEBUG -c utils/System.cc -o utils/System.o
  preparing minisatgh
  downloading: solvers/minisatgh.zip (75209 bytes)... done
  extracting solvers/minisatgh.zip
  adapting minisatgh's files
  patching minisatgh
  patching file solvers/minisatgh/Makefile
  patching file solvers/minisatgh/core/Solver.cc
  patching file solvers/minisatgh/core/Solver.h
  patching file solvers/minisatgh/core/SolverTypes.h
  patching file solvers/minisatgh/mtl/Alg.h
  patching file solvers/minisatgh/mtl/Alloc.h
  patching file solvers/minisatgh/mtl/Heap.h
  patching file solvers/minisatgh/mtl/IntMap.h
  patching file solvers/minisatgh/mtl/IntTypes.h
  patching file solvers/minisatgh/mtl/Map.h
  patching file solvers/minisatgh/mtl/Queue.h
  patching file solvers/minisatgh/mtl/Rnd.h
  patching file solvers/minisatgh/mtl/Sort.h
  patching file solvers/minisatgh/mtl/Vec.h
  patching file solvers/minisatgh/mtl/XAlloc.h
  patching file solvers/minisatgh/utils/Options.cc
  patching file solvers/minisatgh/utils/Options.h
  patching file solvers/minisatgh/utils/ParseUtils.h
  patching file solvers/minisatgh/utils/System.cc
  patching file solvers/minisatgh/utils/System.h
  compiling minisatgh
  c++ -std=c++11 -fPIC -Wall -Wno-deprecated -fno-strict-aliasing -I.. -O3 -DNDEBUG -c core/Solver.cc -o core/Solver.o
  c++ -std=c++11 -fPIC -Wall -Wno-deprecated -fno-strict-aliasing -I.. -O3 -DNDEBUG -c utils/Options.cc -o utils/Options.o
  c++ -std=c++11 -fPIC -Wall -Wno-deprecated -fno-strict-aliasing -I.. -O3 -DNDEBUG -c utils/System.cc -o utils/System.o
  running build_py
  creating build
  creating build/lib.macosx-10.7-x86_64-3.7
  creating build/lib.macosx-10.7-x86_64-3.7/pysat
  copying pysat/pb.py -> build/lib.macosx-10.7-x86_64-3.7/pysat
  copying pysat/_fileio.py -> build/lib.macosx-10.7-x86_64-3.7/pysat
  copying pysat/formula.py -> build/lib.macosx-10.7-x86_64-3.7/pysat
  copying pysat/__init__.py -> build/lib.macosx-10.7-x86_64-3.7/pysat
  copying pysat/solvers.py -> build/lib.macosx-10.7-x86_64-3.7/pysat
  copying pysat/card.py -> build/lib.macosx-10.7-x86_64-3.7/pysat
  creating build/lib.macosx-10.7-x86_64-3.7/pysat/examples
  copying examples/lbx.py -> build/lib.macosx-10.7-x86_64-3.7/pysat/examples
  copying examples/musx.py -> build/lib.macosx-10.7-x86_64-3.7/pysat/examples
  copying examples/hitman.py -> build/lib.macosx-10.7-x86_64-3.7/pysat/examples
  copying examples/rc2.py -> build/lib.macosx-10.7-x86_64-3.7/pysat/examples
  copying examples/__init__.py -> build/lib.macosx-10.7-x86_64-3.7/pysat/examples
  copying examples/fm.py -> build/lib.macosx-10.7-x86_64-3.7/pysat/examples
  copying examples/mcsls.py -> build/lib.macosx-10.7-x86_64-3.7/pysat/examples
  copying examples/lsu.py -> build/lib.macosx-10.7-x86_64-3.7/pysat/examples
  copying examples/genhard.py -> build/lib.macosx-10.7-x86_64-3.7/pysat/examples
  copying examples/sudoku.py -> build/lib.macosx-10.7-x86_64-3.7/pysat/examples
  copying examples/hornify.py -> build/lib.macosx-10.7-x86_64-3.7/pysat/examples
  copying examples/usage.py -> build/lib.macosx-10.7-x86_64-3.7/pysat/examples
  running build_ext
  building 'pycard' extension
  creating build/temp.macosx-10.7-x86_64-3.7
  creating build/temp.macosx-10.7-x86_64-3.7/cardenc
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -Icardenc -I/usr/local/anaconda3/include/python3.7m -c cardenc/pycard.cc -o build/temp.macosx-10.7-x86_64-3.7/cardenc/pycard.o -std=c++11 -Wall -Wno-deprecated --stdlib=libc++
  g++ -bundle -undefined dynamic_lookup -L/usr/local/anaconda3/lib -arch x86_64 -L/usr/local/anaconda3/lib -arch x86_64 -arch x86_64 build/temp.macosx-10.7-x86_64-3.7/cardenc/pycard.o -lc++ -o build/lib.macosx-10.7-x86_64-3.7/pycard.cpython-37m-darwin.so
  clang: warning: libstdc++ is deprecated; move to libc++ with a minimum deployment target of OS X 10.9 [-Wdeprecated]
  ld: library not found for -lstdc++
  clang: error: linker command failed with exit code 1 (use -v to see invocation)
  error: command 'g++' failed with exit status 1
  
  ----------------------------------------
  Failed building wheel for python-sat
  Running setup.py clean for python-sat
  Building wheel for pypblib (setup.py) ... error
  Complete output from command /usr/local/anaconda3/bin/python -u -c "import setuptools, tokenize;__file__='/private/var/folders/cy/bwkh61td0dl34kq4z3glqwww0000gn/T/pip-install-a718izzn/pypblib/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" bdist_wheel -d /private/var/folders/cy/bwkh61td0dl34kq4z3glqwww0000gn/T/pip-wheel-7luefm3d --python-tag cp37:
  running bdist_wheel
  running build
  running build_py
  creating build
  creating build/lib.macosx-10.7-x86_64-3.7
  creating build/lib.macosx-10.7-x86_64-3.7/pypblib
  copying pypblib/__init__.py -> build/lib.macosx-10.7-x86_64-3.7/pypblib
  running build_ext
  building 'pypblib.pblib' extension
  creating build/temp.macosx-10.7-x86_64-3.7
  creating build/temp.macosx-10.7-x86_64-3.7/Modules
  creating build/temp.macosx-10.7-x86_64-3.7/Modules/pblib
  creating build/temp.macosx-10.7-x86_64-3.7/External
  creating build/temp.macosx-10.7-x86_64-3.7/External/pblib
  creating build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c Modules/pblib/pblib_incpbconstraint.cpp -o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_incpbconstraint.o -std=c++11 --stdlib=libc++
  In file included from Modules/pblib/pblib_incpbconstraint.cpp:10:
  In file included from Modules/pblib/pblib_incpbconstraint.hpp:9:
  In file included from External/pblib/incpbconstraint.h:8:
  In file included from External/pblib/clausedatabase.h:9:
  External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 2; i < conjuncts.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~~~~
  External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < it->second.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  Modules/pblib/pblib_incpbconstraint.cpp:99:17: warning: using the result of an assignment as a condition without parentheses [-Wparentheses]
      while (item = PyIter_Next(iter)) {
             ~~~~~^~~~~~~~~~~~~~~~~~~
  Modules/pblib/pblib_incpbconstraint.cpp:99:17: note: place parentheses around the assignment to silence this warning
      while (item = PyIter_Next(iter)) {
                  ^
             (                       )
  Modules/pblib/pblib_incpbconstraint.cpp:99:17: note: use '==' to turn this assignment into an equality comparison
      while (item = PyIter_Next(iter)) {
                  ^
                  ==
  10 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c Modules/pblib/pblib_module.cpp -o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_module.o -std=c++11 --stdlib=libc++
  In file included from Modules/pblib/pblib_module.cpp:10:
  In file included from Modules/pblib/pblib_pbparser.hpp:10:
  External/pblib/PBParser.h:675:8: warning: unused variable 'c' [-Wunused-variable]
                  char c;
                       ^
  In file included from Modules/pblib/pblib_module.cpp:10:
  Modules/pblib/pblib_pbparser.hpp:23:2: warning: struct 'PBParser' was previously declared as a class [-Wmismatched-tags]
          struct PBParser parser;
          ^
  External/pblib/PBParser.h:938:7: note: previous use is here
  class PBParser
        ^
  Modules/pblib/pblib_pbparser.hpp:23:2: note: did you mean class here?
          struct PBParser parser;
          ^~~~~~
          class
  In file included from Modules/pblib/pblib_module.cpp:15:
  In file included from Modules/pblib/pblib_pb2cnf.hpp:9:
  In file included from External/pblib/pb2cnf.h:6:
  In file included from External/pblib/incpbconstraint.h:8:
  In file included from External/pblib/clausedatabase.h:9:
  External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 2; i < conjuncts.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~~~~
  External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < it->second.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  In file included from Modules/pblib/pblib_module.cpp:15:
  In file included from Modules/pblib/pblib_pb2cnf.hpp:9:
  In file included from External/pblib/pb2cnf.h:21:
  External/pblib/encoder/SortingNetworks.h:38:23: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
      for (int i = 0; i < fs.size() / 2; i++){
                      ~ ^ ~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:47:23: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
      for (int i = 0; i < fs.size() / 2; i++){
                      ~ ^ ~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:67:27: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
          for (int i = 1; i < tmp.size() - 1; i += 2)
                          ~ ^ ~~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:69:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < tmp.size(); i++)
                          ~ ^ ~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:80:29: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      int sz; for (sz = 1; sz < fs.size(); sz *= 2);
                           ~~ ^ ~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:82:19: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
      if (fs.size() < sz)
          ~~~~~~~~~ ^ ~~
  External/pblib/encoder/SortingNetworks.h:86:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 1; i < fs.size(); i *= 2)
                      ~ ^ ~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:87:33: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int j = 0; j + 2*i <= fs.size(); j += 2*i)
                          ~~~~~~~ ^  ~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:101:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < seq.size(); i++){
                      ~ ^ ~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:133:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int j = 0; j < seq.size(); j++){
                          ~ ^ ~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:146:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int j = 0; j < rhs.size(); j++){
                          ~ ^ ~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:191:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < ps.size(); i++)
                      ~ ^ ~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:201:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < Cs.size(); i++)
                      ~ ^ ~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:214:18: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      if (digit_no == base.size()){
          ~~~~~~~~ ^  ~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:217:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < carry.size(); i++)
                          ~ ^ ~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:231:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < Cs.size(); i++){
                          ~ ^ ~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:245:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < carry.size(); i++)
                          ~ ^ ~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:255:29: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = B-1; i < result.size(); i += B)
                            ~ ^ ~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:261:31: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < result.size(); j += B){
                              ~ ^ ~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:263:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
                  if (j + i < result.size())
                      ~~~~~ ^ ~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:264:59: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
                      out = OR(out, AND(result[j + i] , ((n >= result.size()) ? _true_ : ~result[n])));
                                                          ~ ^  ~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:284:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < base.size(); i++){
                      ~ ^ ~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:305:36: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
          Formula gt = (digit.size() > dig) ? digit[dig] : _false_;       // This digit is greater than the "dig" of 'num'.
                        ~~~~~~~~~~~~ ^ ~~~
  External/pblib/encoder/SortingNetworks.h:307:36: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
                       (digit.size() > dig-1) ? digit[dig-1] : _false_;   // This digit is greater than or equal to the "dig" of 'num'.
                        ~~~~~~~~~~~~ ^ ~~~~~
  35 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c Modules/pblib/pblib_pbparser.cpp -o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_pbparser.o -std=c++11 --stdlib=libc++
  In file included from Modules/pblib/pblib_pbparser.cpp:9:
  In file included from Modules/pblib/pblib_pbparser.hpp:10:
  External/pblib/PBParser.h:675:8: warning: unused variable 'c' [-Wunused-variable]
                  char c;
                       ^
  In file included from Modules/pblib/pblib_pbparser.cpp:9:
  Modules/pblib/pblib_pbparser.hpp:23:2: warning: struct 'PBParser' was previously declared as a class [-Wmismatched-tags]
          struct PBParser parser;
          ^
  External/pblib/PBParser.h:938:7: note: previous use is here
  class PBParser
        ^
  Modules/pblib/pblib_pbparser.hpp:23:2: note: did you mean class here?
          struct PBParser parser;
          ^~~~~~
          class
  2 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c Modules/pblib/aux_var_manager.cpp -o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/aux_var_manager.o -std=c++11 --stdlib=libc++
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c Modules/pblib/pblib_pb2cnf.cpp -o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_pb2cnf.o -std=c++11 --stdlib=libc++
  In file included from Modules/pblib/pblib_pb2cnf.cpp:8:
  In file included from Modules/pblib/pblib_pb2cnf.hpp:9:
  In file included from External/pblib/pb2cnf.h:6:
  In file included from External/pblib/incpbconstraint.h:8:
  In file included from External/pblib/clausedatabase.h:9:
  External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 2; i < conjuncts.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~~~~
  External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < it->second.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  In file included from Modules/pblib/pblib_pb2cnf.cpp:8:
  In file included from Modules/pblib/pblib_pb2cnf.hpp:9:
  In file included from External/pblib/pb2cnf.h:21:
  External/pblib/encoder/SortingNetworks.h:38:23: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
      for (int i = 0; i < fs.size() / 2; i++){
                      ~ ^ ~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:47:23: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
      for (int i = 0; i < fs.size() / 2; i++){
                      ~ ^ ~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:67:27: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
          for (int i = 1; i < tmp.size() - 1; i += 2)
                          ~ ^ ~~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:69:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < tmp.size(); i++)
                          ~ ^ ~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:80:29: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      int sz; for (sz = 1; sz < fs.size(); sz *= 2);
                           ~~ ^ ~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:82:19: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
      if (fs.size() < sz)
          ~~~~~~~~~ ^ ~~
  External/pblib/encoder/SortingNetworks.h:86:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 1; i < fs.size(); i *= 2)
                      ~ ^ ~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:87:33: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int j = 0; j + 2*i <= fs.size(); j += 2*i)
                          ~~~~~~~ ^  ~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:101:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < seq.size(); i++){
                      ~ ^ ~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:133:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int j = 0; j < seq.size(); j++){
                          ~ ^ ~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:146:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int j = 0; j < rhs.size(); j++){
                          ~ ^ ~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:191:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < ps.size(); i++)
                      ~ ^ ~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:201:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < Cs.size(); i++)
                      ~ ^ ~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:214:18: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      if (digit_no == base.size()){
          ~~~~~~~~ ^  ~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:217:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < carry.size(); i++)
                          ~ ^ ~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:231:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < Cs.size(); i++){
                          ~ ^ ~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:245:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < carry.size(); i++)
                          ~ ^ ~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:255:29: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = B-1; i < result.size(); i += B)
                            ~ ^ ~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:261:31: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < result.size(); j += B){
                              ~ ^ ~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:263:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
                  if (j + i < result.size())
                      ~~~~~ ^ ~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:264:59: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
                      out = OR(out, AND(result[j + i] , ((n >= result.size()) ? _true_ : ~result[n])));
                                                          ~ ^  ~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:284:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < base.size(); i++){
                      ~ ^ ~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:305:36: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
          Formula gt = (digit.size() > dig) ? digit[dig] : _false_;       // This digit is greater than the "dig" of 'num'.
                        ~~~~~~~~~~~~ ^ ~~~
  External/pblib/encoder/SortingNetworks.h:307:36: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
                       (digit.size() > dig-1) ? digit[dig-1] : _false_;   // This digit is greater than or equal to the "dig" of 'num'.
                        ~~~~~~~~~~~~ ^ ~~~~~
  33 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c Modules/pblib/pblib_weightedlit.cpp -o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_weightedlit.o -std=c++11 --stdlib=libc++
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c Modules/pblib/helper.cpp -o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/helper.o -std=c++11 --stdlib=libc++
  Modules/pblib/helper.cpp:13:16: warning: using the result of an assignment as a condition without parentheses [-Wparentheses]
      while(item = PyIter_Next(iter)) {
            ~~~~~^~~~~~~~~~~~~~~~~~~
  Modules/pblib/helper.cpp:13:16: note: place parentheses around the assignment to silence this warning
      while(item = PyIter_Next(iter)) {
                 ^
            (                       )
  Modules/pblib/helper.cpp:13:16: note: use '==' to turn this assignment into an equality comparison
      while(item = PyIter_Next(iter)) {
                 ^
                 ==
  Modules/pblib/helper.cpp:36:16: warning: using the result of an assignment as a condition without parentheses [-Wparentheses]
      while(item = PyIter_Next(iter)) {
            ~~~~~^~~~~~~~~~~~~~~~~~~
  Modules/pblib/helper.cpp:36:16: note: place parentheses around the assignment to silence this warning
      while(item = PyIter_Next(iter)) {
                 ^
            (                       )
  Modules/pblib/helper.cpp:36:16: note: use '==' to turn this assignment into an equality comparison
      while(item = PyIter_Next(iter)) {
                 ^
                 ==
  2 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c Modules/pblib/pblib_vectorclausedatabase.cpp -o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_vectorclausedatabase.o -std=c++11 --stdlib=libc++
  In file included from Modules/pblib/pblib_vectorclausedatabase.cpp:9:
  In file included from Modules/pblib/pblib_vectorclausedatabase.hpp:9:
  In file included from External/pblib/VectorClauseDatabase.h:5:
  In file included from External/pblib/clausedatabase.h:9:
  External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 2; i < conjuncts.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~~~~
  External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < it->second.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  Modules/pblib/pblib_vectorclausedatabase.cpp:60:17: warning: using the result of an assignment as a condition without parentheses [-Wparentheses]
      while (item = PyIter_Next(iter)) {
             ~~~~~^~~~~~~~~~~~~~~~~~~
  Modules/pblib/pblib_vectorclausedatabase.cpp:60:17: note: place parentheses around the assignment to silence this warning
      while (item = PyIter_Next(iter)) {
                  ^
             (                       )
  Modules/pblib/pblib_vectorclausedatabase.cpp:60:17: note: use '==' to turn this assignment into an equality comparison
      while (item = PyIter_Next(iter)) {
                  ^
                  ==
  10 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c Modules/pblib/pblib_pbconfig.cpp -o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_pbconfig.o -std=c++11 --stdlib=libc++
  Modules/pblib/pblib_pbconfig.cpp:51:35: warning: cast to 'PyPBConfig *' from smaller integer type 'int' [-Wint-to-pointer-cast]
      ss << "bimander = " << (long)((PyPBConfig*)self->config->bimander_m) << "\n";
                                    ^
  Modules/pblib/pblib_pbconfig.cpp:53:20: warning: cast to 'PyPBConfig *' from smaller integer type 'int' [-Wint-to-pointer-cast]
              (long)((PyPBConfig*)self->config->k_product_minimum_lit_count_for_splitting) << "\n";
                     ^
  Modules/pblib/pblib_pbconfig.cpp:54:38: warning: cast to 'PyPBConfig *' from smaller integer type 'int' [-Wint-to-pointer-cast]
      ss << "K product k = " << (long)((PyPBConfig*)self->config->k_product_k) << "\n";
                                       ^
  Modules/pblib/pblib_pbconfig.cpp:56:20: warning: cast to 'PyPBConfig *' from smaller integer type 'int' [-Wint-to-pointer-cast]
              (long)((PyPBConfig*)self->config->commander_encoding_k) << "\n";
                     ^
  Modules/pblib/pblib_pbconfig.cpp:82:18: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
      if(b) return "TRUE";
                   ^
  Modules/pblib/pblib_pbconfig.cpp:83:12: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
      return "FALSE";
             ^
  Modules/pblib/pblib_pbconfig.cpp:89:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
          case 0: return "BEST";
                         ^
  Modules/pblib/pblib_pbconfig.cpp:90:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
          case 1: return "BDD";
                         ^
  Modules/pblib/pblib_pbconfig.cpp:91:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
          case 2: return "SWC";
                         ^
  Modules/pblib/pblib_pbconfig.cpp:92:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
          case 3: return "SORTINGNETWORKS";
                         ^
  Modules/pblib/pblib_pbconfig.cpp:93:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
          case 4: return "ADDER";
                         ^
  Modules/pblib/pblib_pbconfig.cpp:94:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
          case 5: return "BINARY MERGE";
                         ^
  Modules/pblib/pblib_pbconfig.cpp:96:1: warning: control may reach end of non-void function [-Wreturn-type]
  }
  ^
  Modules/pblib/pblib_pbconfig.cpp:101:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
          case 0: return "BEST";
                         ^
  Modules/pblib/pblib_pbconfig.cpp:102:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
          case 1: return "BDD";
                         ^
  Modules/pblib/pblib_pbconfig.cpp:103:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
          case 2: return "CARD";
                         ^
  Modules/pblib/pblib_pbconfig.cpp:105:1: warning: control may reach end of non-void function [-Wreturn-type]
  }
  ^
  Modules/pblib/pblib_pbconfig.cpp:110:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
          case 0: return "BEST";
                         ^
  Modules/pblib/pblib_pbconfig.cpp:111:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
          case 1: return "NESTED";
                         ^
  Modules/pblib/pblib_pbconfig.cpp:112:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
          case 2: return "BDD";
                         ^
  Modules/pblib/pblib_pbconfig.cpp:113:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
          case 3: return "BIMANDER";
                         ^
  Modules/pblib/pblib_pbconfig.cpp:114:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
          case 4: return "COMMANDER";
                         ^
  Modules/pblib/pblib_pbconfig.cpp:115:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
          case 5: return "KPRODUCT";
                         ^
  Modules/pblib/pblib_pbconfig.cpp:116:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
          case 6: return "BINARY";
                         ^
  Modules/pblib/pblib_pbconfig.cpp:117:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
          case 7: return "PAIRWISE";
                         ^
  Modules/pblib/pblib_pbconfig.cpp:119:1: warning: control may reach end of non-void function [-Wreturn-type]
  }
  ^
  Modules/pblib/pblib_pbconfig.cpp:124:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
          case 0: return "N_HALF";
                         ^
  Modules/pblib/pblib_pbconfig.cpp:125:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
          case 1: return "N_SQRT";
                         ^
  Modules/pblib/pblib_pbconfig.cpp:126:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
          case 2: return "FIXED";
                         ^
  Modules/pblib/pblib_pbconfig.cpp:128:1: warning: control may reach end of non-void function [-Wreturn-type]
  }
  ^
  Modules/pblib/pblib_pbconfig.cpp:325:8: warning: variable 'bin_merge_bool' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized]
      if(PyObject_IsTrue(bin_merge)) { bin_merge_bool = true; }
         ^~~~~~~~~~~~~~~~~~~~~~~~~~
  Modules/pblib/pblib_pbconfig.cpp:326:44: note: uninitialized use occurs here
      (self->config)->use_gac_binary_merge = bin_merge_bool;
                                             ^~~~~~~~~~~~~~
  Modules/pblib/pblib_pbconfig.cpp:325:5: note: remove the 'if' if its condition is always true
      if(PyObject_IsTrue(bin_merge)) { bin_merge_bool = true; }
      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  Modules/pblib/pblib_pbconfig.cpp:313:24: note: initialize the variable 'bin_merge_bool' to silence this warning
      bool bin_merge_bool;
                         ^
                          = false
  31 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c Modules/pblib/pblib_statistic.cpp -o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_statistic.o -std=c++11 --stdlib=libc++
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c Modules/pblib/pblib_pbconstraint.cpp -o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_pbconstraint.o -std=c++11 --stdlib=libc++
  Modules/pblib/pblib_pbconstraint.cpp:96:17: warning: using the result of an assignment as a condition without parentheses [-Wparentheses]
      while (item = PyIter_Next(iter)) {
             ~~~~~^~~~~~~~~~~~~~~~~~~
  Modules/pblib/pblib_pbconstraint.cpp:96:17: note: place parentheses around the assignment to silence this warning
      while (item = PyIter_Next(iter)) {
                  ^
             (                       )
  Modules/pblib/pblib_pbconstraint.cpp:96:17: note: use '==' to turn this assignment into an equality comparison
      while (item = PyIter_Next(iter)) {
                  ^
                  ==
  1 warning generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/pb2cnf.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/pb2cnf.o -std=c++11 --stdlib=libc++
  In file included from External/pblib/pb2cnf.cpp:6:
  In file included from External/pblib/pb2cnf.h:6:
  In file included from External/pblib/incpbconstraint.h:8:
  In file included from External/pblib/clausedatabase.h:9:
  External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 2; i < conjuncts.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~~~~
  External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < it->second.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  In file included from External/pblib/pb2cnf.cpp:6:
  In file included from External/pblib/pb2cnf.h:21:
  External/pblib/encoder/SortingNetworks.h:38:23: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
      for (int i = 0; i < fs.size() / 2; i++){
                      ~ ^ ~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:47:23: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
      for (int i = 0; i < fs.size() / 2; i++){
                      ~ ^ ~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:67:27: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
          for (int i = 1; i < tmp.size() - 1; i += 2)
                          ~ ^ ~~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:69:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < tmp.size(); i++)
                          ~ ^ ~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:80:29: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      int sz; for (sz = 1; sz < fs.size(); sz *= 2);
                           ~~ ^ ~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:82:19: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
      if (fs.size() < sz)
          ~~~~~~~~~ ^ ~~
  External/pblib/encoder/SortingNetworks.h:86:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 1; i < fs.size(); i *= 2)
                      ~ ^ ~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:87:33: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int j = 0; j + 2*i <= fs.size(); j += 2*i)
                          ~~~~~~~ ^  ~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:101:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < seq.size(); i++){
                      ~ ^ ~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:133:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int j = 0; j < seq.size(); j++){
                          ~ ^ ~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:146:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int j = 0; j < rhs.size(); j++){
                          ~ ^ ~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:191:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < ps.size(); i++)
                      ~ ^ ~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:201:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < Cs.size(); i++)
                      ~ ^ ~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:214:18: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      if (digit_no == base.size()){
          ~~~~~~~~ ^  ~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:217:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < carry.size(); i++)
                          ~ ^ ~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:231:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < Cs.size(); i++){
                          ~ ^ ~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:245:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < carry.size(); i++)
                          ~ ^ ~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:255:29: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = B-1; i < result.size(); i += B)
                            ~ ^ ~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:261:31: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < result.size(); j += B){
                              ~ ^ ~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:263:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
                  if (j + i < result.size())
                      ~~~~~ ^ ~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:264:59: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
                      out = OR(out, AND(result[j + i] , ((n >= result.size()) ? _true_ : ~result[n])));
                                                          ~ ^  ~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:284:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < base.size(); i++){
                      ~ ^ ~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:305:36: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
          Formula gt = (digit.size() > dig) ? digit[dig] : _false_;       // This digit is greater than the "dig" of 'num'.
                        ~~~~~~~~~~~~ ^ ~~~
  External/pblib/encoder/SortingNetworks.h:307:36: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
                       (digit.size() > dig-1) ? digit[dig-1] : _false_;   // This digit is greater than or equal to the "dig" of 'num'.
                        ~~~~~~~~~~~~ ^ ~~~~~
  External/pblib/pb2cnf.cpp:143:64: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::vector<int, std::__1::allocator<int> >, std::__1::allocator<std::__1::vector<int, std::__1::allocator<int> > > >::size_type' (aka 'unsigned long') and 'int64_t' (aka 'long long') [-Wsign-compare]
    if (bdd_encoder.wasToBig() || tmpFormula.getClauses().size() > num_of_bin_merge_clauses)
                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/pb2cnf.cpp:175:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < literals.size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~
  External/pblib/pb2cnf.cpp:185:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < literals.size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~
  External/pblib/pb2cnf.cpp:203:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < weights.size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~
  External/pblib/pb2cnf.cpp:226:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < weights.size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~
  External/pblib/pb2cnf.cpp:250:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < weights.size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~
  External/pblib/pb2cnf.cpp:559:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<Encoder *, std::__1::allocator<Encoder *> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 1; i < encoders.size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~
  External/pblib/pb2cnf.cpp:589:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<Encoder *, std::__1::allocator<Encoder *> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 1; i < encoders.size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~
  41 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/VectorClauseDatabase.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/VectorClauseDatabase.o -std=c++11 --stdlib=libc++
  In file included from External/pblib/VectorClauseDatabase.cpp:1:
  In file included from External/pblib/VectorClauseDatabase.h:5:
  In file included from External/pblib/clausedatabase.h:9:
  External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 2; i < conjuncts.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~~~~
  External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < it->second.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/VectorClauseDatabase.cpp:53:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::vector<int, std::__1::allocator<int> >, std::__1::allocator<std::__1::vector<int, std::__1::allocator<int> > > >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < clauses->size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~
  In file included from External/pblib/VectorClauseDatabase.cpp:2:
  External/pblib/helper.h:41:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for( int i = 0 ; i < data.size(); ++ i )
                     ~ ^ ~~~~~~~~~~~
  External/pblib/VectorClauseDatabase.cpp:55:10: note: in instantiation of function template specialization 'operator<<<int>' requested here
      cout << (*clauses)[i] << " 0" << endl;
           ^
  11 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/pbo2maxsat.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/pbo2maxsat.o -std=c++11 --stdlib=libc++
  In file included from External/pblib/pbo2maxsat.cpp:10:
  External/pblib/PBParser.h:675:8: warning: unused variable 'c' [-Wunused-variable]
                  char c;
                       ^
  In file included from External/pblib/pbo2maxsat.cpp:11:
  In file included from External/pblib/pb2cnf.h:6:
  In file included from External/pblib/incpbconstraint.h:8:
  In file included from External/pblib/clausedatabase.h:9:
  External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 2; i < conjuncts.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~~~~
  External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < it->second.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  In file included from External/pblib/pbo2maxsat.cpp:11:
  In file included from External/pblib/pb2cnf.h:21:
  External/pblib/encoder/SortingNetworks.h:38:23: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
      for (int i = 0; i < fs.size() / 2; i++){
                      ~ ^ ~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:47:23: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
      for (int i = 0; i < fs.size() / 2; i++){
                      ~ ^ ~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:67:27: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
          for (int i = 1; i < tmp.size() - 1; i += 2)
                          ~ ^ ~~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:69:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < tmp.size(); i++)
                          ~ ^ ~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:80:29: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      int sz; for (sz = 1; sz < fs.size(); sz *= 2);
                           ~~ ^ ~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:82:19: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
      if (fs.size() < sz)
          ~~~~~~~~~ ^ ~~
  External/pblib/encoder/SortingNetworks.h:86:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 1; i < fs.size(); i *= 2)
                      ~ ^ ~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:87:33: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int j = 0; j + 2*i <= fs.size(); j += 2*i)
                          ~~~~~~~ ^  ~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:101:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < seq.size(); i++){
                      ~ ^ ~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:133:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int j = 0; j < seq.size(); j++){
                          ~ ^ ~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:146:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int j = 0; j < rhs.size(); j++){
                          ~ ^ ~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:191:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < ps.size(); i++)
                      ~ ^ ~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:201:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < Cs.size(); i++)
                      ~ ^ ~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:214:18: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      if (digit_no == base.size()){
          ~~~~~~~~ ^  ~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:217:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < carry.size(); i++)
                          ~ ^ ~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:231:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < Cs.size(); i++){
                          ~ ^ ~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:245:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < carry.size(); i++)
                          ~ ^ ~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:255:29: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = B-1; i < result.size(); i += B)
                            ~ ^ ~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:261:31: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < result.size(); j += B){
                              ~ ^ ~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:263:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
                  if (j + i < result.size())
                      ~~~~~ ^ ~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:264:59: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
                      out = OR(out, AND(result[j + i] , ((n >= result.size()) ? _true_ : ~result[n])));
                                                          ~ ^  ~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:284:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < base.size(); i++){
                      ~ ^ ~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:305:36: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
          Formula gt = (digit.size() > dig) ? digit[dig] : _false_;       // This digit is greater than the "dig" of 'num'.
                        ~~~~~~~~~~~~ ^ ~~~
  External/pblib/encoder/SortingNetworks.h:307:36: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
                       (digit.size() > dig-1) ? digit[dig-1] : _false_;   // This digit is greater than or equal to the "dig" of 'num'.
                        ~~~~~~~~~~~~ ^ ~~~~~
  External/pblib/pbo2maxsat.cpp:23:10: warning: unused variable 'tstart' [-Wunused-variable]
    double tstart = clock(), tend;
           ^
  External/pblib/pbo2maxsat.cpp:23:28: warning: unused variable 'tend' [-Wunused-variable]
    double tstart = clock(), tend;
                             ^
  36 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/preencoder.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/preencoder.o -std=c++11 --stdlib=libc++
  In file included from External/pblib/preencoder.cpp:1:
  In file included from External/pblib/preencoder.h:5:
  In file included from External/pblib/clausedatabase.h:9:
  External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 2; i < conjuncts.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~~~~
  External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < it->second.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/preencoder.cpp:119:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<PBLib::WeightedLit, std::__1::allocator<PBLib::WeightedLit> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 1; i < literals.size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~
  External/pblib/preencoder.cpp:219:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/preencoder.cpp:278:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/preencoder.cpp:318:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/preencoder.cpp:346:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/preencoder.cpp:394:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  15 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/helper.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/helper.o -std=c++11 --stdlib=libc++
  External/pblib/helper.cpp:12:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 1; i < clause.size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~
  1 warning generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/auxvarmanager.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/auxvarmanager.o -std=c++11 --stdlib=libc++
  External/pblib/auxvarmanager.cpp:39:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < variables.size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~~
  1 warning generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/formula.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/formula.o -std=c++11 --stdlib=libc++
  In file included from External/pblib/formula.cpp:2:
  External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 2; i < conjuncts.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~~~~
  External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < it->second.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.cpp:30:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.cpp:144:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < conjuncts.size(); ++i) {
                    ~ ^ ~~~~~~~~~~~~~~~~
  11 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/incpbconstraint.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/incpbconstraint.o -std=c++11 --stdlib=libc++
  In file included from External/pblib/incpbconstraint.cpp:1:
  In file included from External/pblib/incpbconstraint.h:8:
  In file included from External/pblib/clausedatabase.h:9:
  External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 2; i < conjuncts.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~~~~
  External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < it->second.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/incpbconstraint.cpp:28:38: warning: field 'comparator' will be initialized after field 'leq' [-Wreorder]
  IncPBConstraint::IncPBConstraint() : comparator(BOTH), leq(0), geq(0), init_leq(leq), init_geq(geq), isDualEncoded(false)
                                       ^
  External/pblib/incpbconstraint.cpp:35:163: warning: field 'comparator' will be initialized after field 'leq' [-Wreorder]
  IncPBConstraint::IncPBConstraint(vector<WeightedLit> const & literals, Comparator comparator, int64_t less_eq, int64_t greater_eq) : weighted_literals(literals), comparator(comparator), leq(less_eq), geq(greater_eq), init_leq(leq), init_geq(geq), isDualEncoded(false)
                                                                                                                                                                    ^
  External/pblib/incpbconstraint.cpp:39:141: warning: field 'comparator' will be initialized after field 'leq' [-Wreorder]
  IncPBConstraint::IncPBConstraint(vector<WeightedLit> const & literals, Comparator comparator, int64_t bound) : weighted_literals(literals), comparator(comparator), leq(0), geq(0), init_leq(leq), init_geq(geq), isDualEncoded(false)
                                                                                                                                              ^
  External/pblib/incpbconstraint.cpp:181:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < conditionals.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~
  13 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/IncSimplePBConstraint.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/IncSimplePBConstraint.o -std=c++11 --stdlib=libc++
  In file included from External/pblib/IncSimplePBConstraint.cpp:1:
  In file included from External/pblib/IncSimplePBConstraint.h:5:
  In file included from External/pblib/IncrementalData.h:5:
  In file included from External/pblib/clausedatabase.h:9:
  External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 2; i < conjuncts.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~~~~
  External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < it->second.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/IncSimplePBConstraint.cpp:37:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < conditionals.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~
  External/pblib/IncSimplePBConstraint.cpp:62:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < conditionals.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~
  External/pblib/IncSimplePBConstraint.cpp:74:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < conditionals.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~~~
  12 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/PBConfig.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/PBConfig.o -std=c++11 --stdlib=libc++
  External/pblib/PBConfig.cpp:19:10: warning: unused variable 'sum_encodings' [-Wunused-variable]
    double sum_encodings = (num_adder_encodings + num_amo_encodings + num_bdd_clause_encodings + num_bdd_gates_encodings + num_card_encodings) / 100;
           ^
  1 warning generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/PBFuzzer.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/PBFuzzer.o -std=c++11 --stdlib=libc++
  In file included from External/pblib/PBFuzzer.cpp:8:
  In file included from External/pblib/preencoder.h:5:
  In file included from External/pblib/clausedatabase.h:9:
  External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 2; i < conjuncts.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~~~~
  External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < it->second.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/PBFuzzer.cpp:27:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<PBLib::PBConstraint, std::__1::allocator<PBLib::PBConstraint> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < constraints.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~
  External/pblib/PBFuzzer.cpp:109:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<PBLib::PBConstraint, std::__1::allocator<PBLib::PBConstraint> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < constraints.size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~~~~
  External/pblib/PBFuzzer.cpp:177:7: warning: unused variable 'geq' [-Wunused-variable]
    int geq;
        ^
  External/pblib/PBFuzzer.cpp:176:7: warning: unused variable 'leq' [-Wunused-variable]
    int leq;
        ^
  External/pblib/PBFuzzer.cpp:182:30: warning: comparison of integers of different signs: 'std::__1::vector<PBLib::PBConstraint, std::__1::allocator<PBLib::PBConstraint> >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
    while ( constraints.size() < number_of_constraints + 1)
            ~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~
  14 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/SimplePBConstraint.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/SimplePBConstraint.o -std=c++11 --stdlib=libc++
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/clausedatabase.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/clausedatabase.o -std=c++11 --stdlib=libc++
  In file included from External/pblib/clausedatabase.cpp:1:
  In file included from External/pblib/clausedatabase.h:9:
  External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 2; i < conjuncts.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~~~~
  External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < it->second.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/clausedatabase.cpp:9:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::vector<int, std::__1::allocator<int> >, std::__1::allocator<std::__1::vector<int, std::__1::allocator<int> > > >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < clauses.size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~
  External/pblib/clausedatabase.cpp:165:24: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int i = 0; i < f->input_nodes.size(); ++i)
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~
  External/pblib/clausedatabase.cpp:174:24: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int i = 0; i < f->input_nodes.size(); ++i)
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~
  12 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/PBParser.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/PBParser.o -std=c++11 --stdlib=libc++
  In file included from External/pblib/PBParser.cpp:1:
  External/pblib/PBParser.h:675:8: warning: unused variable 'c' [-Wunused-variable]
                  char c;
                       ^
  1 warning generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/pbconstraint.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/pbconstraint.o -std=c++11 --stdlib=libc++
  External/pblib/pbconstraint.cpp:56:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<PBLib::WeightedLit, std::__1::allocator<PBLib::WeightedLit> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < weighted_literals.size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/pbconstraint.cpp:66:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<PBLib::WeightedLit, std::__1::allocator<PBLib::WeightedLit> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < weighted_literals.size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/pbconstraint.cpp:96:33: warning: field 'comparator' will be initialized after field 'leq' [-Wreorder]
  PBConstraint::PBConstraint() :  comparator(LEQ), leq(0), geq(0)
                                  ^
  External/pblib/pbconstraint.cpp:101:157: warning: field 'comparator' will be initialized after field 'leq' [-Wreorder]
  PBConstraint::PBConstraint(vector<WeightedLit> const & literals, Comparator comparator, int64_t less_eq, int64_t greater_eq) : weighted_literals(literals), comparator(comparator), leq(less_eq), geq(greater_eq)
                                                                                                                                                              ^
  External/pblib/pbconstraint.cpp:105:135: warning: field 'comparator' will be initialized after field 'leq' [-Wreorder]
  PBConstraint::PBConstraint(vector<WeightedLit> const & literals, Comparator comparator, int64_t bound) : weighted_literals(literals), comparator(comparator), leq(0), geq(0)
                                                                                                                                        ^
  External/pblib/pbconstraint.cpp:174:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < conditionals.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~
  6 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/IncrementalData.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/IncrementalData.o -std=c++11 --stdlib=libc++
  In file included from External/pblib/IncrementalData.cpp:1:
  In file included from External/pblib/IncrementalData.h:5:
  In file included from External/pblib/clausedatabase.h:9:
  External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 2; i < conjuncts.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~~~~
  External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < it->second.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/IncrementalData.cpp:32:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < conditionals.size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~~~~~
  External/pblib/IncrementalData.cpp:56:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < conditionals.size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~~~~~
  External/pblib/IncrementalData.cpp:68:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < conditionals.size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~~~~~
  12 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/encoder/cardencoding.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/cardencoding.o -std=c++11 --stdlib=libc++
  In file included from External/pblib/encoder/cardencoding.cpp:4:
  In file included from External/pblib/encoder/cardencoding.h:5:
  In file included from External/pblib/encoder/../IncSimplePBConstraint.h:5:
  In file included from External/pblib/IncrementalData.h:5:
  In file included from External/pblib/clausedatabase.h:9:
  External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 2; i < conjuncts.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~~~~
  External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < it->second.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/encoder/cardencoding.cpp:20:22: warning: comparison of integers of different signs: 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') and 'int64_t' (aka 'long long') [-Wsign-compare]
    if (outlits.size() < newGeq)
        ~~~~~~~~~~~~~~ ^ ~~~~~~
  External/pblib/encoder/cardencoding.cpp:26:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < conditionals.size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/cardencoding.cpp:35:22: warning: comparison of integers of different signs: 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') and 'int64_t' (aka 'long long') [-Wsign-compare]
    if (outlits.size() > newLeq)
        ~~~~~~~~~~~~~~ ^ ~~~~~~
  External/pblib/encoder/cardencoding.cpp:38:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < conditionals.size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/cardencoding.cpp:88:21: warning: comparison of integers of different signs: 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') and 'int64_t' (aka 'long long') [-Wsign-compare]
    if (output.size() > leq) // if not, the constraint is always satisfiable (initially)
        ~~~~~~~~~~~~~ ^ ~~~
  External/pblib/encoder/cardencoding.cpp:94:23: warning: comparison of integers of different signs: 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') and 'int64_t' (aka 'long long') [-Wsign-compare]
      if (output.size() < pbconstraint->getGeq())
          ~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/cardencoding.cpp:101:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < pbconstraint->getConditionals().size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/cardencoding.cpp:132:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/cardencoding.cpp:159:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  18 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/encoder/BinaryMerge.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/BinaryMerge.o -std=c++11 --stdlib=libc++
  In file included from External/pblib/encoder/BinaryMerge.cpp:3:
  In file included from External/pblib/encoder/BinaryMerge.h:3:
  In file included from External/pblib/encoder/../IncSimplePBConstraint.h:5:
  In file included from External/pblib/IncrementalData.h:5:
  In file included from External/pblib/clausedatabase.h:9:
  External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 2; i < conjuncts.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~~~~
  External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < it->second.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/encoder/BinaryMerge.cpp:55:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < constraint.getConditionals().size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/BinaryMerge.cpp:69:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::vector<int, std::__1::allocator<int> >, std::__1::allocator<std::__1::vector<int, std::__1::allocator<int> > > >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < buckets.size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~
  External/pblib/encoder/BinaryMerge.cpp:79:11: warning: comparison of integers of different signs: 'int64_t' (aka 'long long') and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      if (k <= buckets[i].size())
          ~ ^  ~~~~~~~~~~~~~~~~~
  External/pblib/encoder/BinaryMerge.cpp:86:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < constraint.getConditionals().size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/BinaryMerge.cpp:93:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < constraint.getConditionals().size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/BinaryMerge.cpp:114:10: warning: comparison of integers of different signs: 'int64_t' (aka 'long long') and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            if (k == bucket_merge[i].size() || (config->use_watch_dog_encoding_in_binary_merger && k <= bucket_merge[i].size()) )
                ~ ^  ~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/BinaryMerge.cpp:114:93: warning: comparison of integers of different signs: 'int64_t' (aka 'long long') and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            if (k == bucket_merge[i].size() || (config->use_watch_dog_encoding_in_binary_merger && k <= bucket_merge[i].size()) )
                                                                                                   ~ ^  ~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/BinaryMerge.cpp:120:26: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
                for (int i = 0; i < constraint.getConditionals().size(); ++i)
                                ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/BinaryMerge.cpp:127:26: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
                for (int i = 0; i < constraint.getConditionals().size(); ++i)
                                ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/BinaryMerge.cpp:142:24: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for(int j = 1; j < bucket_card[0].size(); j = j + 2)
                       ~ ^ ~~~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/BinaryMerge.cpp:147:24: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for(int j = 1; j < bucket_merge[i].size(); j = j + 2)
                       ~ ^ ~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/BinaryMerge.cpp:171:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<PBLib::WeightedLit, std::__1::allocator<PBLib::WeightedLit> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < lits.size(); ++i)
                      ~ ^ ~~~~~~~~~~~
  External/pblib/encoder/BinaryMerge.cpp:188:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<PBLib::WeightedLit, std::__1::allocator<PBLib::WeightedLit> >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int j = 0; j < lits.size(); ++j)
                          ~ ^ ~~~~~~~~~~~
  External/pblib/encoder/BinaryMerge.cpp:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<PBLib::WeightedLit, std::__1::allocator<PBLib::WeightedLit> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < lits.size(); ++j)
                            ~ ^ ~~~~~~~~~~~
  External/pblib/encoder/BinaryMerge.cpp:200:24: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int i = 0; i < constraint.getConditionals().size(); ++i)
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/BinaryMerge.cpp:214:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<PBLib::WeightedLit, std::__1::allocator<PBLib::WeightedLit> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < lits.size(); ++j)
                            ~ ^ ~~~~~~~~~~~
  External/pblib/encoder/BinaryMerge.cpp:218:24: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int i = 0; i < constraint.getConditionals().size(); ++i)
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/BinaryMerge.cpp:225:13: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<PBLib::WeightedLit, std::__1::allocator<PBLib::WeightedLit> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        if (i < lits.size())
            ~ ^ ~~~~~~~~~~~
  External/pblib/encoder/BinaryMerge.cpp:255:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < x.size(); ++i)
                      ~ ^ ~~~~~~~~
  External/pblib/encoder/BinaryMerge.cpp:261:15: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
      for (;  i < x.size() / 2; ++i)
              ~ ^ ~~~~~~~~~~~~
  External/pblib/encoder/BinaryMerge.cpp:263:15: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (;  i < x.size(); ++i)
              ~ ^ ~~~~~~~~
  External/pblib/encoder/BinaryMerge.cpp:281:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < v.size(); ++i)
                      ~ ^ ~~~~~~~~
  External/pblib/encoder/BinaryMerge.cpp:286:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < u.size(); ++i)
                      ~ ^ ~~~~~~~~
  External/pblib/encoder/BinaryMerge.cpp:291:23: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
      for (int i = 0; i < u.size() + v.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/BinaryMerge.cpp:294:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int a=0; a < u.size(); ++a)
                    ~ ^ ~~~~~~~~
  External/pblib/encoder/BinaryMerge.cpp:296:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int b=0; b < v.size(); ++b)
                      ~ ^ ~~~~~~~~
  External/pblib/encoder/BinaryMerge.cpp:302:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i=0; i < v.size(); ++i)
                    ~ ^ ~~~~~~~~
  External/pblib/encoder/BinaryMerge.cpp:307:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i=0; i < u.size(); ++i)
                    ~ ^ ~~~~~~~~
  37 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/encoder/commander_encoding.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/commander_encoding.o -std=c++11 --stdlib=libc++
  In file included from External/pblib/encoder/commander_encoding.cpp:1:
  In file included from External/pblib/encoder/commander_encoding.h:8:
  In file included from External/pblib/encoder/../IncSimplePBConstraint.h:5:
  In file included from External/pblib/IncrementalData.h:5:
  In file included from External/pblib/clausedatabase.h:9:
  External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 2; i < conjuncts.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~~~~
  External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < it->second.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/encoder/commander_encoding.cpp:28:34: warning: comparison of integers of different signs: 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
    while (current_literals.size() > k)
           ~~~~~~~~~~~~~~~~~~~~~~~ ^ ~
  External/pblib/encoder/commander_encoding.cpp:32:19: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (i = 0; i < current_literals.size(); ++i)
                  ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/commander_encoding.cpp:36:32: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
        if (i % k == (k-1) || (i == current_literals.size() - 1) ) // is group full?
                               ~ ^  ~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/commander_encoding.cpp:51:20: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
          for (int j = 0; j < _literals.size() - 1; ++j)
                          ~ ^ ~~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/commander_encoding.cpp:93:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  14 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/encoder/k-product.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/k-product.o -std=c++11 --stdlib=libc++
  In file included from External/pblib/encoder/k-product.cpp:2:
  In file included from External/pblib/encoder/k-product.h:7:
  In file included from External/pblib/encoder/../IncSimplePBConstraint.h:5:
  In file included from External/pblib/IncrementalData.h:5:
  In file included from External/pblib/clausedatabase.h:9:
  External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 2; i < conjuncts.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~~~~
  External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < it->second.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/encoder/k-product.cpp:18:25: warning: comparison of integers of different signs: 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
      if (literals.size() < minimum_lit_count)
          ~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/encoder/k-product.cpp:53:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < literals.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~
  External/pblib/encoder/k-product.cpp:57:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::vector<int, std::__1::allocator<int> >, std::__1::allocator<std::__1::vector<int, std::__1::allocator<int> > > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int d = 0; d < dimensions.size(); ++d)
                        ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/encoder/k-product.cpp:67:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::vector<int, std::__1::allocator<int> >, std::__1::allocator<std::__1::vector<int, std::__1::allocator<int> > > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < dimensions.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/encoder/k-product.cpp:132:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  14 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/encoder/naive_amo_encoder.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/naive_amo_encoder.o -std=c++11 --stdlib=libc++
  In file included from External/pblib/encoder/naive_amo_encoder.cpp:1:
  In file included from External/pblib/encoder/naive_amo_encoder.h:12:
  In file included from External/pblib/encoder/../IncSimplePBConstraint.h:5:
  In file included from External/pblib/IncrementalData.h:5:
  In file included from External/pblib/clausedatabase.h:9:
  External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 2; i < conjuncts.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~~~~
  External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < it->second.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/encoder/naive_amo_encoder.cpp:7:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < literals.size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~
  External/pblib/encoder/naive_amo_encoder.cpp:9:28: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int j = i + 1 ; j < literals.size(); ++j)
                           ~ ^ ~~~~~~~~~~~~~~~
  External/pblib/encoder/naive_amo_encoder.cpp:46:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  12 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/encoder/SWC.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/SWC.o -std=c++11 --stdlib=libc++
  In file included from External/pblib/encoder/SWC.cpp:1:
  In file included from External/pblib/encoder/SWC.h:7:
  In file included from External/pblib/encoder/../IncSimplePBConstraint.h:5:
  In file included from External/pblib/IncrementalData.h:5:
  In file included from External/pblib/clausedatabase.h:9:
  External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 2; i < conjuncts.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~~~~
  External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < it->second.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/encoder/SWC.cpp:95:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/SWC.cpp:110:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < conditionals.size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/SWC.cpp:122:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < conditionals.size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~~~~~
  12 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/encoder/adderencoding.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/adderencoding.o -std=c++11 --stdlib=libc++
  In file included from External/pblib/encoder/adderencoding.cpp:2:
  In file included from External/pblib/encoder/adderencoding.h:3:
  In file included from External/pblib/encoder/../IncSimplePBConstraint.h:5:
  In file included from External/pblib/IncrementalData.h:5:
  In file included from External/pblib/clausedatabase.h:9:
  External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 2; i < conjuncts.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~~~~
  External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < it->second.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/encoder/adderencoding.cpp:18:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < kBits.size(); ++i) // negate everythink
                    ~ ^ ~~~~~~~~~~~~
  External/pblib/encoder/adderencoding.cpp:24:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < kBits.size(); ++i)
                    ~ ^ ~~~~~~~~~~~~
  External/pblib/encoder/adderencoding.cpp:29:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < conditionals.size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/adderencoding.cpp:41:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < conditionals.size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/adderencoding.cpp:124:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::queue<int, std::__1::deque<int, std::__1::allocator<int> > >, std::__1::allocator<std::__1::queue<int, std::__1::deque<int, std::__1::allocator<int> > > > >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for ( int i = 0; i < buckets.size(); i++ ) {
                     ~ ^ ~~~~~~~~~~~~~~
  External/pblib/encoder/adderencoding.cpp:128:14: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
        if ( i == buckets.size() - 1 && buckets[i].size() >= 2 ) {
             ~ ^  ~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/adderencoding.cpp:170:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for ( int i = 0; i < xs.size(); ++i ) {
                     ~ ^ ~~~~~~~~~
  External/pblib/encoder/adderencoding.cpp:178:30: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for ( int j = i + 1; j < xs.size(); ++j )
                             ~ ^ ~~~~~~~~~
  External/pblib/encoder/adderencoding.cpp:236:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < result.size(); ++i) {
                    ~ ^ ~~~~~~~~~~~~~
  External/pblib/encoder/adderencoding.cpp:303:34: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<PBLib::WeightedLit, std::__1::allocator<PBLib::WeightedLit> >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for ( int iVar = 0; iVar < pbconstraint.getWeightedLiterals().size(); ++iVar ) {
                              ~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/adderencoding.cpp:329:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < kBits.size(); ++i) // negate everythink
                          ~ ^ ~~~~~~~~~~~~
  External/pblib/encoder/adderencoding.cpp:335:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < kBits.size(); ++i) // negate everythink
                          ~ ^ ~~~~~~~~~~~~
  External/pblib/encoder/adderencoding.cpp:346:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  22 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/encoder/BDD_Seq_Amo.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/BDD_Seq_Amo.o -std=c++11 --stdlib=libc++
  In file included from External/pblib/encoder/BDD_Seq_Amo.cpp:1:
  In file included from External/pblib/encoder/BDD_Seq_Amo.h:13:
  In file included from External/pblib/encoder/../IncSimplePBConstraint.h:5:
  In file included from External/pblib/IncrementalData.h:5:
  In file included from External/pblib/clausedatabase.h:9:
  External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 2; i < conjuncts.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~~~~
  External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < it->second.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/encoder/BDD_Seq_Amo.cpp:37:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/BDD_Seq_Amo.cpp:60:21: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
    for (int i = 0; i < literals.size() - 2; ++i)
                    ~ ^ ~~~~~~~~~~~~~~~~~~~
  11 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/encoder/bdd.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/bdd.o -std=c++11 --stdlib=libc++
  In file included from External/pblib/encoder/bdd.cpp:1:
  In file included from External/pblib/encoder/bdd.h:16:
  In file included from External/pblib/encoder/../clausedatabase.h:9:
  External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 2; i < conjuncts.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~~~~
  External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < it->second.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/encoder/bdd.cpp:191:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/bdd.cpp:250:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  In file included from External/pblib/encoder/bdd.cpp:1:
  External/pblib/encoder/bdd.h:41:11: warning: private field 'current_node_id' is not used [-Wunused-private-field]
    int32_t current_node_id = 3;
            ^
  12 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/encoder/amo.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/amo.o -std=c++11 --stdlib=libc++
  In file included from External/pblib/encoder/amo.cpp:2:
  In file included from External/pblib/encoder/amo.h:7:
  In file included from External/pblib/encoder/../IncSimplePBConstraint.h:5:
  In file included from External/pblib/IncrementalData.h:5:
  In file included from External/pblib/clausedatabase.h:9:
  External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 2; i < conjuncts.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~~~~
  External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < it->second.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/encoder/amo.cpp:93:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  10 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/encoder/binary_amo.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/binary_amo.o -std=c++11 --stdlib=libc++
  In file included from External/pblib/encoder/binary_amo.cpp:2:
  In file included from External/pblib/encoder/binary_amo.h:7:
  In file included from External/pblib/encoder/../IncSimplePBConstraint.h:5:
  In file included from External/pblib/IncrementalData.h:5:
  In file included from External/pblib/clausedatabase.h:9:
  External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 2; i < conjuncts.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~~~~
  External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < it->second.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/encoder/binary_amo.cpp:87:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  10 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/encoder/sorting_merging.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/sorting_merging.o -std=c++11 --stdlib=libc++
  In file included from External/pblib/encoder/sorting_merging.cpp:3:
  In file included from External/pblib/encoder/sorting_merging.h:5:
  In file included from External/pblib/encoder/../IncSimplePBConstraint.h:5:
  In file included from External/pblib/IncrementalData.h:5:
  In file included from External/pblib/clausedatabase.h:9:
  External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 2; i < conjuncts.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~~~~
  External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < it->second.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/encoder/sorting_merging.cpp:320:11: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      if (i < odd_merge.size() && j < even_merge.size())
          ~ ^ ~~~~~~~~~~~~~~~~
  External/pblib/encoder/sorting_merging.cpp:320:35: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      if (i < odd_merge.size() && j < even_merge.size())
                                  ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/encoder/sorting_merging.cpp:323:29: warning: comparison of integers of different signs: 'unsigned long' and 'int' [-Wsign-compare]
        if (output.size() + 2 <= c)
            ~~~~~~~~~~~~~~~~~ ^  ~
  External/pblib/encoder/sorting_merging.cpp:332:20: warning: comparison of integers of different signs: 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
          if (output.size() == c)
              ~~~~~~~~~~~~~ ^  ~
  External/pblib/encoder/sorting_merging.cpp:336:29: warning: comparison of integers of different signs: 'unsigned long' and 'int' [-Wsign-compare]
        if (output.size() + 1 == c)
            ~~~~~~~~~~~~~~~~~ ^  ~
  External/pblib/encoder/sorting_merging.cpp:345:11: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      if (i >= odd_merge.size() && j >= even_merge.size())
          ~ ^  ~~~~~~~~~~~~~~~~
  External/pblib/encoder/sorting_merging.cpp:345:36: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      if (i >= odd_merge.size() && j >= even_merge.size())
                                   ~ ^  ~~~~~~~~~~~~~~~~~
  External/pblib/encoder/sorting_merging.cpp:348:11: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      if (i >= odd_merge.size())
          ~ ^  ~~~~~~~~~~~~~~~~
  External/pblib/encoder/sorting_merging.cpp:375:7: warning: unused variable 'n' [-Wunused-variable]
    int n = a + b;
        ^
  18 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/encoder/Encoder.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/Encoder.o -std=c++11 --stdlib=libc++
  In file included from External/pblib/encoder/Encoder.cpp:1:
  In file included from External/pblib/encoder/Encoder.h:6:
  In file included from External/pblib/encoder/../IncSimplePBConstraint.h:5:
  In file included from External/pblib/IncrementalData.h:5:
  In file included from External/pblib/clausedatabase.h:9:
  External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 2; i < conjuncts.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~~~~
  External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < it->second.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  9 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/encoder/bimander_amo_encoding.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/bimander_amo_encoding.o -std=c++11 --stdlib=libc++
  In file included from External/pblib/encoder/bimander_amo_encoding.cpp:3:
  In file included from External/pblib/encoder/bimander_amo_encoding.h:8:
  In file included from External/pblib/encoder/../IncSimplePBConstraint.h:5:
  In file included from External/pblib/IncrementalData.h:5:
  In file included from External/pblib/clausedatabase.h:9:
  External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 2; i < conjuncts.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~~~~
  External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < it->second.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/encoder/bimander_amo_encoding.cpp:72:17: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (i = 0; i < literals.size(); )
                ~ ^ ~~~~~~~~~~~~~~~
  External/pblib/encoder/bimander_amo_encoding.cpp:87:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::vector<int, std::__1::allocator<int> >, std::__1::allocator<std::__1::vector<int, std::__1::allocator<int> > > >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < groups.size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~
  External/pblib/encoder/bimander_amo_encoding.cpp:117:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int g = 0; g < groups[index].size(); ++g)
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/bimander_amo_encoding.cpp:124:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int g = 0; g < groups[index].size(); ++g)
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/bimander_amo_encoding.cpp:143:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int g = 0; g < groups[index].size(); ++g)
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/bimander_amo_encoding.cpp:150:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int g = 0; g < groups[index].size(); ++g)
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~
  External/pblib/encoder/bimander_amo_encoding.cpp:183:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  16 warnings generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/encoder/SortingNetworks.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/SortingNetworks.o -std=c++11 --stdlib=libc++
  In file included from External/pblib/encoder/SortingNetworks.cpp:1:
  In file included from External/pblib/encoder/SortingNetworks.h:3:
  In file included from External/pblib/encoder/../IncSimplePBConstraint.h:5:
  In file included from External/pblib/IncrementalData.h:5:
  In file included from External/pblib/clausedatabase.h:9:
  External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 2; i < conjuncts.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~~~~
  External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < it->second.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
  In file included from External/pblib/encoder/SortingNetworks.cpp:1:
  External/pblib/encoder/SortingNetworks.h:38:23: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
      for (int i = 0; i < fs.size() / 2; i++){
                      ~ ^ ~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:47:23: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
      for (int i = 0; i < fs.size() / 2; i++){
                      ~ ^ ~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:67:27: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
          for (int i = 1; i < tmp.size() - 1; i += 2)
                          ~ ^ ~~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:69:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < tmp.size(); i++)
                          ~ ^ ~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:80:29: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      int sz; for (sz = 1; sz < fs.size(); sz *= 2);
                           ~~ ^ ~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:82:19: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
      if (fs.size() < sz)
          ~~~~~~~~~ ^ ~~
  External/pblib/encoder/SortingNetworks.h:86:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 1; i < fs.size(); i *= 2)
                      ~ ^ ~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:87:33: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int j = 0; j + 2*i <= fs.size(); j += 2*i)
                          ~~~~~~~ ^  ~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:101:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < seq.size(); i++){
                      ~ ^ ~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:133:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int j = 0; j < seq.size(); j++){
                          ~ ^ ~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:146:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int j = 0; j < rhs.size(); j++){
                          ~ ^ ~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:191:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < ps.size(); i++)
                      ~ ^ ~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:201:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < Cs.size(); i++)
                      ~ ^ ~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:214:18: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      if (digit_no == base.size()){
          ~~~~~~~~ ^  ~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:217:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < carry.size(); i++)
                          ~ ^ ~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:231:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < Cs.size(); i++){
                          ~ ^ ~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:245:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < carry.size(); i++)
                          ~ ^ ~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:255:29: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = B-1; i < result.size(); i += B)
                            ~ ^ ~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:261:31: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < result.size(); j += B){
                              ~ ^ ~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:263:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
                  if (j + i < result.size())
                      ~~~~~ ^ ~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:264:59: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
                      out = OR(out, AND(result[j + i] , ((n >= result.size()) ? _true_ : ~result[n])));
                                                          ~ ^  ~~~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:284:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < base.size(); i++){
                      ~ ^ ~~~~~~~~~~~
  External/pblib/encoder/SortingNetworks.h:305:36: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
          Formula gt = (digit.size() > dig) ? digit[dig] : _false_;       // This digit is greater than the "dig" of 'num'.
                        ~~~~~~~~~~~~ ^ ~~~
  External/pblib/encoder/SortingNetworks.h:307:36: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
                       (digit.size() > dig-1) ? digit[dig-1] : _false_;   // This digit is greater than or equal to the "dig" of 'num'.
                        ~~~~~~~~~~~~ ^ ~~~~~
  External/pblib/encoder/SortingNetworks.cpp:15:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
    for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  34 warnings generated.
  g++ -bundle -undefined dynamic_lookup -L/usr/local/anaconda3/lib -arch x86_64 -L/usr/local/anaconda3/lib -arch x86_64 -arch x86_64 build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_incpbconstraint.o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_module.o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_pbparser.o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/aux_var_manager.o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_pb2cnf.o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_weightedlit.o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/helper.o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_vectorclausedatabase.o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_pbconfig.o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_statistic.o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_pbconstraint.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/pb2cnf.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/VectorClauseDatabase.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/pbo2maxsat.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/preencoder.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/helper.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/auxvarmanager.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/formula.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/incpbconstraint.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/IncSimplePBConstraint.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/PBConfig.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/PBFuzzer.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/SimplePBConstraint.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/clausedatabase.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/PBParser.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/pbconstraint.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/IncrementalData.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/cardencoding.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/BinaryMerge.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/commander_encoding.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/k-product.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/naive_amo_encoder.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/SWC.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/adderencoding.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/BDD_Seq_Amo.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/bdd.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/amo.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/binary_amo.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/sorting_merging.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/Encoder.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/bimander_amo_encoding.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/SortingNetworks.o -lc++ -o build/lib.macosx-10.7-x86_64-3.7/pypblib/pblib.cpython-37m-darwin.so
  clang: warning: libstdc++ is deprecated; move to libc++ with a minimum deployment target of OS X 10.9 [-Wdeprecated]
  ld: library not found for -lstdc++
  clang: error: linker command failed with exit code 1 (use -v to see invocation)
  error: command 'g++' failed with exit status 1
  
  ----------------------------------------
  Failed building wheel for pypblib
  Running setup.py clean for pypblib
Failed to build python-sat pypblib
Installing collected packages: pypblib, python-sat
  Running setup.py install for pypblib ... error
    Complete output from command /usr/local/anaconda3/bin/python -u -c "import setuptools, tokenize;__file__='/private/var/folders/cy/bwkh61td0dl34kq4z3glqwww0000gn/T/pip-install-a718izzn/pypblib/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /private/var/folders/cy/bwkh61td0dl34kq4z3glqwww0000gn/T/pip-record-fac0bx_j/install-record.txt --single-version-externally-managed --compile:
    running install
    running build
    running build_py
    creating build
    creating build/lib.macosx-10.7-x86_64-3.7
    creating build/lib.macosx-10.7-x86_64-3.7/pypblib
    copying pypblib/__init__.py -> build/lib.macosx-10.7-x86_64-3.7/pypblib
    running build_ext
    building 'pypblib.pblib' extension
    creating build/temp.macosx-10.7-x86_64-3.7
    creating build/temp.macosx-10.7-x86_64-3.7/Modules
    creating build/temp.macosx-10.7-x86_64-3.7/Modules/pblib
    creating build/temp.macosx-10.7-x86_64-3.7/External
    creating build/temp.macosx-10.7-x86_64-3.7/External/pblib
    creating build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c Modules/pblib/pblib_incpbconstraint.cpp -o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_incpbconstraint.o -std=c++11 --stdlib=libc++
    In file included from Modules/pblib/pblib_incpbconstraint.cpp:10:
    In file included from Modules/pblib/pblib_incpbconstraint.hpp:9:
    In file included from External/pblib/incpbconstraint.h:8:
    In file included from External/pblib/clausedatabase.h:9:
    External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 2; i < conjuncts.size(); ++i) {
                        ~ ^ ~~~~~~~~~~~~~~~~
    External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    Modules/pblib/pblib_incpbconstraint.cpp:99:17: warning: using the result of an assignment as a condition without parentheses [-Wparentheses]
        while (item = PyIter_Next(iter)) {
               ~~~~~^~~~~~~~~~~~~~~~~~~
    Modules/pblib/pblib_incpbconstraint.cpp:99:17: note: place parentheses around the assignment to silence this warning
        while (item = PyIter_Next(iter)) {
                    ^
               (                       )
    Modules/pblib/pblib_incpbconstraint.cpp:99:17: note: use '==' to turn this assignment into an equality comparison
        while (item = PyIter_Next(iter)) {
                    ^
                    ==
    10 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c Modules/pblib/pblib_module.cpp -o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_module.o -std=c++11 --stdlib=libc++
    In file included from Modules/pblib/pblib_module.cpp:10:
    In file included from Modules/pblib/pblib_pbparser.hpp:10:
    External/pblib/PBParser.h:675:8: warning: unused variable 'c' [-Wunused-variable]
                    char c;
                         ^
    In file included from Modules/pblib/pblib_module.cpp:10:
    Modules/pblib/pblib_pbparser.hpp:23:2: warning: struct 'PBParser' was previously declared as a class [-Wmismatched-tags]
            struct PBParser parser;
            ^
    External/pblib/PBParser.h:938:7: note: previous use is here
    class PBParser
          ^
    Modules/pblib/pblib_pbparser.hpp:23:2: note: did you mean class here?
            struct PBParser parser;
            ^~~~~~
            class
    In file included from Modules/pblib/pblib_module.cpp:15:
    In file included from Modules/pblib/pblib_pb2cnf.hpp:9:
    In file included from External/pblib/pb2cnf.h:6:
    In file included from External/pblib/incpbconstraint.h:8:
    In file included from External/pblib/clausedatabase.h:9:
    External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 2; i < conjuncts.size(); ++i) {
                        ~ ^ ~~~~~~~~~~~~~~~~
    External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    In file included from Modules/pblib/pblib_module.cpp:15:
    In file included from Modules/pblib/pblib_pb2cnf.hpp:9:
    In file included from External/pblib/pb2cnf.h:21:
    External/pblib/encoder/SortingNetworks.h:38:23: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
        for (int i = 0; i < fs.size() / 2; i++){
                        ~ ^ ~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:47:23: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
        for (int i = 0; i < fs.size() / 2; i++){
                        ~ ^ ~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:67:27: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
            for (int i = 1; i < tmp.size() - 1; i += 2)
                            ~ ^ ~~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:69:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < tmp.size(); i++)
                            ~ ^ ~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:80:29: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        int sz; for (sz = 1; sz < fs.size(); sz *= 2);
                             ~~ ^ ~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:82:19: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
        if (fs.size() < sz)
            ~~~~~~~~~ ^ ~~
    External/pblib/encoder/SortingNetworks.h:86:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 1; i < fs.size(); i *= 2)
                        ~ ^ ~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:87:33: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j + 2*i <= fs.size(); j += 2*i)
                            ~~~~~~~ ^  ~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:101:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < seq.size(); i++){
                        ~ ^ ~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:133:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < seq.size(); j++){
                            ~ ^ ~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:146:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < rhs.size(); j++){
                            ~ ^ ~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:191:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < ps.size(); i++)
                        ~ ^ ~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:201:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < Cs.size(); i++)
                        ~ ^ ~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:214:18: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        if (digit_no == base.size()){
            ~~~~~~~~ ^  ~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:217:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < carry.size(); i++)
                            ~ ^ ~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:231:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < Cs.size(); i++){
                            ~ ^ ~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:245:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < carry.size(); i++)
                            ~ ^ ~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:255:29: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = B-1; i < result.size(); i += B)
                              ~ ^ ~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:261:31: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
                for (int j = 0; j < result.size(); j += B){
                                ~ ^ ~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:263:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
                    if (j + i < result.size())
                        ~~~~~ ^ ~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:264:59: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
                        out = OR(out, AND(result[j + i] , ((n >= result.size()) ? _true_ : ~result[n])));
                                                            ~ ^  ~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:284:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < base.size(); i++){
                        ~ ^ ~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:305:36: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
            Formula gt = (digit.size() > dig) ? digit[dig] : _false_;       // This digit is greater than the "dig" of 'num'.
                          ~~~~~~~~~~~~ ^ ~~~
    External/pblib/encoder/SortingNetworks.h:307:36: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
                         (digit.size() > dig-1) ? digit[dig-1] : _false_;   // This digit is greater than or equal to the "dig" of 'num'.
                          ~~~~~~~~~~~~ ^ ~~~~~
    35 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c Modules/pblib/pblib_pbparser.cpp -o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_pbparser.o -std=c++11 --stdlib=libc++
    In file included from Modules/pblib/pblib_pbparser.cpp:9:
    In file included from Modules/pblib/pblib_pbparser.hpp:10:
    External/pblib/PBParser.h:675:8: warning: unused variable 'c' [-Wunused-variable]
                    char c;
                         ^
    In file included from Modules/pblib/pblib_pbparser.cpp:9:
    Modules/pblib/pblib_pbparser.hpp:23:2: warning: struct 'PBParser' was previously declared as a class [-Wmismatched-tags]
            struct PBParser parser;
            ^
    External/pblib/PBParser.h:938:7: note: previous use is here
    class PBParser
          ^
    Modules/pblib/pblib_pbparser.hpp:23:2: note: did you mean class here?
            struct PBParser parser;
            ^~~~~~
            class
    2 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c Modules/pblib/aux_var_manager.cpp -o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/aux_var_manager.o -std=c++11 --stdlib=libc++
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c Modules/pblib/pblib_pb2cnf.cpp -o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_pb2cnf.o -std=c++11 --stdlib=libc++
    In file included from Modules/pblib/pblib_pb2cnf.cpp:8:
    In file included from Modules/pblib/pblib_pb2cnf.hpp:9:
    In file included from External/pblib/pb2cnf.h:6:
    In file included from External/pblib/incpbconstraint.h:8:
    In file included from External/pblib/clausedatabase.h:9:
    External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 2; i < conjuncts.size(); ++i) {
                        ~ ^ ~~~~~~~~~~~~~~~~
    External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    In file included from Modules/pblib/pblib_pb2cnf.cpp:8:
    In file included from Modules/pblib/pblib_pb2cnf.hpp:9:
    In file included from External/pblib/pb2cnf.h:21:
    External/pblib/encoder/SortingNetworks.h:38:23: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
        for (int i = 0; i < fs.size() / 2; i++){
                        ~ ^ ~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:47:23: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
        for (int i = 0; i < fs.size() / 2; i++){
                        ~ ^ ~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:67:27: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
            for (int i = 1; i < tmp.size() - 1; i += 2)
                            ~ ^ ~~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:69:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < tmp.size(); i++)
                            ~ ^ ~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:80:29: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        int sz; for (sz = 1; sz < fs.size(); sz *= 2);
                             ~~ ^ ~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:82:19: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
        if (fs.size() < sz)
            ~~~~~~~~~ ^ ~~
    External/pblib/encoder/SortingNetworks.h:86:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 1; i < fs.size(); i *= 2)
                        ~ ^ ~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:87:33: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j + 2*i <= fs.size(); j += 2*i)
                            ~~~~~~~ ^  ~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:101:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < seq.size(); i++){
                        ~ ^ ~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:133:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < seq.size(); j++){
                            ~ ^ ~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:146:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < rhs.size(); j++){
                            ~ ^ ~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:191:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < ps.size(); i++)
                        ~ ^ ~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:201:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < Cs.size(); i++)
                        ~ ^ ~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:214:18: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        if (digit_no == base.size()){
            ~~~~~~~~ ^  ~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:217:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < carry.size(); i++)
                            ~ ^ ~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:231:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < Cs.size(); i++){
                            ~ ^ ~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:245:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < carry.size(); i++)
                            ~ ^ ~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:255:29: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = B-1; i < result.size(); i += B)
                              ~ ^ ~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:261:31: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
                for (int j = 0; j < result.size(); j += B){
                                ~ ^ ~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:263:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
                    if (j + i < result.size())
                        ~~~~~ ^ ~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:264:59: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
                        out = OR(out, AND(result[j + i] , ((n >= result.size()) ? _true_ : ~result[n])));
                                                            ~ ^  ~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:284:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < base.size(); i++){
                        ~ ^ ~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:305:36: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
            Formula gt = (digit.size() > dig) ? digit[dig] : _false_;       // This digit is greater than the "dig" of 'num'.
                          ~~~~~~~~~~~~ ^ ~~~
    External/pblib/encoder/SortingNetworks.h:307:36: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
                         (digit.size() > dig-1) ? digit[dig-1] : _false_;   // This digit is greater than or equal to the "dig" of 'num'.
                          ~~~~~~~~~~~~ ^ ~~~~~
    33 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c Modules/pblib/pblib_weightedlit.cpp -o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_weightedlit.o -std=c++11 --stdlib=libc++
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c Modules/pblib/helper.cpp -o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/helper.o -std=c++11 --stdlib=libc++
    Modules/pblib/helper.cpp:13:16: warning: using the result of an assignment as a condition without parentheses [-Wparentheses]
        while(item = PyIter_Next(iter)) {
              ~~~~~^~~~~~~~~~~~~~~~~~~
    Modules/pblib/helper.cpp:13:16: note: place parentheses around the assignment to silence this warning
        while(item = PyIter_Next(iter)) {
                   ^
              (                       )
    Modules/pblib/helper.cpp:13:16: note: use '==' to turn this assignment into an equality comparison
        while(item = PyIter_Next(iter)) {
                   ^
                   ==
    Modules/pblib/helper.cpp:36:16: warning: using the result of an assignment as a condition without parentheses [-Wparentheses]
        while(item = PyIter_Next(iter)) {
              ~~~~~^~~~~~~~~~~~~~~~~~~
    Modules/pblib/helper.cpp:36:16: note: place parentheses around the assignment to silence this warning
        while(item = PyIter_Next(iter)) {
                   ^
              (                       )
    Modules/pblib/helper.cpp:36:16: note: use '==' to turn this assignment into an equality comparison
        while(item = PyIter_Next(iter)) {
                   ^
                   ==
    2 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c Modules/pblib/pblib_vectorclausedatabase.cpp -o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_vectorclausedatabase.o -std=c++11 --stdlib=libc++
    In file included from Modules/pblib/pblib_vectorclausedatabase.cpp:9:
    In file included from Modules/pblib/pblib_vectorclausedatabase.hpp:9:
    In file included from External/pblib/VectorClauseDatabase.h:5:
    In file included from External/pblib/clausedatabase.h:9:
    External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 2; i < conjuncts.size(); ++i) {
                        ~ ^ ~~~~~~~~~~~~~~~~
    External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    Modules/pblib/pblib_vectorclausedatabase.cpp:60:17: warning: using the result of an assignment as a condition without parentheses [-Wparentheses]
        while (item = PyIter_Next(iter)) {
               ~~~~~^~~~~~~~~~~~~~~~~~~
    Modules/pblib/pblib_vectorclausedatabase.cpp:60:17: note: place parentheses around the assignment to silence this warning
        while (item = PyIter_Next(iter)) {
                    ^
               (                       )
    Modules/pblib/pblib_vectorclausedatabase.cpp:60:17: note: use '==' to turn this assignment into an equality comparison
        while (item = PyIter_Next(iter)) {
                    ^
                    ==
    10 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c Modules/pblib/pblib_pbconfig.cpp -o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_pbconfig.o -std=c++11 --stdlib=libc++
    Modules/pblib/pblib_pbconfig.cpp:51:35: warning: cast to 'PyPBConfig *' from smaller integer type 'int' [-Wint-to-pointer-cast]
        ss << "bimander = " << (long)((PyPBConfig*)self->config->bimander_m) << "\n";
                                      ^
    Modules/pblib/pblib_pbconfig.cpp:53:20: warning: cast to 'PyPBConfig *' from smaller integer type 'int' [-Wint-to-pointer-cast]
                (long)((PyPBConfig*)self->config->k_product_minimum_lit_count_for_splitting) << "\n";
                       ^
    Modules/pblib/pblib_pbconfig.cpp:54:38: warning: cast to 'PyPBConfig *' from smaller integer type 'int' [-Wint-to-pointer-cast]
        ss << "K product k = " << (long)((PyPBConfig*)self->config->k_product_k) << "\n";
                                         ^
    Modules/pblib/pblib_pbconfig.cpp:56:20: warning: cast to 'PyPBConfig *' from smaller integer type 'int' [-Wint-to-pointer-cast]
                (long)((PyPBConfig*)self->config->commander_encoding_k) << "\n";
                       ^
    Modules/pblib/pblib_pbconfig.cpp:82:18: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
        if(b) return "TRUE";
                     ^
    Modules/pblib/pblib_pbconfig.cpp:83:12: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
        return "FALSE";
               ^
    Modules/pblib/pblib_pbconfig.cpp:89:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
            case 0: return "BEST";
                           ^
    Modules/pblib/pblib_pbconfig.cpp:90:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
            case 1: return "BDD";
                           ^
    Modules/pblib/pblib_pbconfig.cpp:91:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
            case 2: return "SWC";
                           ^
    Modules/pblib/pblib_pbconfig.cpp:92:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
            case 3: return "SORTINGNETWORKS";
                           ^
    Modules/pblib/pblib_pbconfig.cpp:93:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
            case 4: return "ADDER";
                           ^
    Modules/pblib/pblib_pbconfig.cpp:94:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
            case 5: return "BINARY MERGE";
                           ^
    Modules/pblib/pblib_pbconfig.cpp:96:1: warning: control may reach end of non-void function [-Wreturn-type]
    }
    ^
    Modules/pblib/pblib_pbconfig.cpp:101:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
            case 0: return "BEST";
                           ^
    Modules/pblib/pblib_pbconfig.cpp:102:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
            case 1: return "BDD";
                           ^
    Modules/pblib/pblib_pbconfig.cpp:103:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
            case 2: return "CARD";
                           ^
    Modules/pblib/pblib_pbconfig.cpp:105:1: warning: control may reach end of non-void function [-Wreturn-type]
    }
    ^
    Modules/pblib/pblib_pbconfig.cpp:110:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
            case 0: return "BEST";
                           ^
    Modules/pblib/pblib_pbconfig.cpp:111:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
            case 1: return "NESTED";
                           ^
    Modules/pblib/pblib_pbconfig.cpp:112:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
            case 2: return "BDD";
                           ^
    Modules/pblib/pblib_pbconfig.cpp:113:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
            case 3: return "BIMANDER";
                           ^
    Modules/pblib/pblib_pbconfig.cpp:114:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
            case 4: return "COMMANDER";
                           ^
    Modules/pblib/pblib_pbconfig.cpp:115:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
            case 5: return "KPRODUCT";
                           ^
    Modules/pblib/pblib_pbconfig.cpp:116:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
            case 6: return "BINARY";
                           ^
    Modules/pblib/pblib_pbconfig.cpp:117:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
            case 7: return "PAIRWISE";
                           ^
    Modules/pblib/pblib_pbconfig.cpp:119:1: warning: control may reach end of non-void function [-Wreturn-type]
    }
    ^
    Modules/pblib/pblib_pbconfig.cpp:124:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
            case 0: return "N_HALF";
                           ^
    Modules/pblib/pblib_pbconfig.cpp:125:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
            case 1: return "N_SQRT";
                           ^
    Modules/pblib/pblib_pbconfig.cpp:126:24: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
            case 2: return "FIXED";
                           ^
    Modules/pblib/pblib_pbconfig.cpp:128:1: warning: control may reach end of non-void function [-Wreturn-type]
    }
    ^
    Modules/pblib/pblib_pbconfig.cpp:325:8: warning: variable 'bin_merge_bool' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized]
        if(PyObject_IsTrue(bin_merge)) { bin_merge_bool = true; }
           ^~~~~~~~~~~~~~~~~~~~~~~~~~
    Modules/pblib/pblib_pbconfig.cpp:326:44: note: uninitialized use occurs here
        (self->config)->use_gac_binary_merge = bin_merge_bool;
                                               ^~~~~~~~~~~~~~
    Modules/pblib/pblib_pbconfig.cpp:325:5: note: remove the 'if' if its condition is always true
        if(PyObject_IsTrue(bin_merge)) { bin_merge_bool = true; }
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    Modules/pblib/pblib_pbconfig.cpp:313:24: note: initialize the variable 'bin_merge_bool' to silence this warning
        bool bin_merge_bool;
                           ^
                            = false
    31 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c Modules/pblib/pblib_statistic.cpp -o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_statistic.o -std=c++11 --stdlib=libc++
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c Modules/pblib/pblib_pbconstraint.cpp -o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_pbconstraint.o -std=c++11 --stdlib=libc++
    Modules/pblib/pblib_pbconstraint.cpp:96:17: warning: using the result of an assignment as a condition without parentheses [-Wparentheses]
        while (item = PyIter_Next(iter)) {
               ~~~~~^~~~~~~~~~~~~~~~~~~
    Modules/pblib/pblib_pbconstraint.cpp:96:17: note: place parentheses around the assignment to silence this warning
        while (item = PyIter_Next(iter)) {
                    ^
               (                       )
    Modules/pblib/pblib_pbconstraint.cpp:96:17: note: use '==' to turn this assignment into an equality comparison
        while (item = PyIter_Next(iter)) {
                    ^
                    ==
    1 warning generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/pb2cnf.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/pb2cnf.o -std=c++11 --stdlib=libc++
    In file included from External/pblib/pb2cnf.cpp:6:
    In file included from External/pblib/pb2cnf.h:6:
    In file included from External/pblib/incpbconstraint.h:8:
    In file included from External/pblib/clausedatabase.h:9:
    External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 2; i < conjuncts.size(); ++i) {
                        ~ ^ ~~~~~~~~~~~~~~~~
    External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    In file included from External/pblib/pb2cnf.cpp:6:
    In file included from External/pblib/pb2cnf.h:21:
    External/pblib/encoder/SortingNetworks.h:38:23: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
        for (int i = 0; i < fs.size() / 2; i++){
                        ~ ^ ~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:47:23: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
        for (int i = 0; i < fs.size() / 2; i++){
                        ~ ^ ~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:67:27: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
            for (int i = 1; i < tmp.size() - 1; i += 2)
                            ~ ^ ~~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:69:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < tmp.size(); i++)
                            ~ ^ ~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:80:29: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        int sz; for (sz = 1; sz < fs.size(); sz *= 2);
                             ~~ ^ ~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:82:19: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
        if (fs.size() < sz)
            ~~~~~~~~~ ^ ~~
    External/pblib/encoder/SortingNetworks.h:86:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 1; i < fs.size(); i *= 2)
                        ~ ^ ~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:87:33: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j + 2*i <= fs.size(); j += 2*i)
                            ~~~~~~~ ^  ~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:101:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < seq.size(); i++){
                        ~ ^ ~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:133:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < seq.size(); j++){
                            ~ ^ ~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:146:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < rhs.size(); j++){
                            ~ ^ ~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:191:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < ps.size(); i++)
                        ~ ^ ~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:201:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < Cs.size(); i++)
                        ~ ^ ~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:214:18: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        if (digit_no == base.size()){
            ~~~~~~~~ ^  ~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:217:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < carry.size(); i++)
                            ~ ^ ~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:231:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < Cs.size(); i++){
                            ~ ^ ~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:245:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < carry.size(); i++)
                            ~ ^ ~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:255:29: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = B-1; i < result.size(); i += B)
                              ~ ^ ~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:261:31: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
                for (int j = 0; j < result.size(); j += B){
                                ~ ^ ~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:263:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
                    if (j + i < result.size())
                        ~~~~~ ^ ~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:264:59: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
                        out = OR(out, AND(result[j + i] , ((n >= result.size()) ? _true_ : ~result[n])));
                                                            ~ ^  ~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:284:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < base.size(); i++){
                        ~ ^ ~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:305:36: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
            Formula gt = (digit.size() > dig) ? digit[dig] : _false_;       // This digit is greater than the "dig" of 'num'.
                          ~~~~~~~~~~~~ ^ ~~~
    External/pblib/encoder/SortingNetworks.h:307:36: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
                         (digit.size() > dig-1) ? digit[dig-1] : _false_;   // This digit is greater than or equal to the "dig" of 'num'.
                          ~~~~~~~~~~~~ ^ ~~~~~
    External/pblib/pb2cnf.cpp:143:64: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::vector<int, std::__1::allocator<int> >, std::__1::allocator<std::__1::vector<int, std::__1::allocator<int> > > >::size_type' (aka 'unsigned long') and 'int64_t' (aka 'long long') [-Wsign-compare]
      if (bdd_encoder.wasToBig() || tmpFormula.getClauses().size() > num_of_bin_merge_clauses)
                                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/pb2cnf.cpp:175:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < literals.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~
    External/pblib/pb2cnf.cpp:185:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < literals.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~
    External/pblib/pb2cnf.cpp:203:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < weights.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~
    External/pblib/pb2cnf.cpp:226:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < weights.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~
    External/pblib/pb2cnf.cpp:250:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < weights.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~
    External/pblib/pb2cnf.cpp:559:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<Encoder *, std::__1::allocator<Encoder *> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 1; i < encoders.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~
    External/pblib/pb2cnf.cpp:589:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<Encoder *, std::__1::allocator<Encoder *> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 1; i < encoders.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~
    41 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/VectorClauseDatabase.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/VectorClauseDatabase.o -std=c++11 --stdlib=libc++
    In file included from External/pblib/VectorClauseDatabase.cpp:1:
    In file included from External/pblib/VectorClauseDatabase.h:5:
    In file included from External/pblib/clausedatabase.h:9:
    External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 2; i < conjuncts.size(); ++i) {
                        ~ ^ ~~~~~~~~~~~~~~~~
    External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/VectorClauseDatabase.cpp:53:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::vector<int, std::__1::allocator<int> >, std::__1::allocator<std::__1::vector<int, std::__1::allocator<int> > > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < clauses->size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~
    In file included from External/pblib/VectorClauseDatabase.cpp:2:
    External/pblib/helper.h:41:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for( int i = 0 ; i < data.size(); ++ i )
                       ~ ^ ~~~~~~~~~~~
    External/pblib/VectorClauseDatabase.cpp:55:10: note: in instantiation of function template specialization 'operator<<<int>' requested here
        cout << (*clauses)[i] << " 0" << endl;
             ^
    11 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/pbo2maxsat.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/pbo2maxsat.o -std=c++11 --stdlib=libc++
    In file included from External/pblib/pbo2maxsat.cpp:10:
    External/pblib/PBParser.h:675:8: warning: unused variable 'c' [-Wunused-variable]
                    char c;
                         ^
    In file included from External/pblib/pbo2maxsat.cpp:11:
    In file included from External/pblib/pb2cnf.h:6:
    In file included from External/pblib/incpbconstraint.h:8:
    In file included from External/pblib/clausedatabase.h:9:
    External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 2; i < conjuncts.size(); ++i) {
                        ~ ^ ~~~~~~~~~~~~~~~~
    External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    In file included from External/pblib/pbo2maxsat.cpp:11:
    In file included from External/pblib/pb2cnf.h:21:
    External/pblib/encoder/SortingNetworks.h:38:23: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
        for (int i = 0; i < fs.size() / 2; i++){
                        ~ ^ ~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:47:23: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
        for (int i = 0; i < fs.size() / 2; i++){
                        ~ ^ ~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:67:27: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
            for (int i = 1; i < tmp.size() - 1; i += 2)
                            ~ ^ ~~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:69:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < tmp.size(); i++)
                            ~ ^ ~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:80:29: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        int sz; for (sz = 1; sz < fs.size(); sz *= 2);
                             ~~ ^ ~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:82:19: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
        if (fs.size() < sz)
            ~~~~~~~~~ ^ ~~
    External/pblib/encoder/SortingNetworks.h:86:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 1; i < fs.size(); i *= 2)
                        ~ ^ ~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:87:33: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j + 2*i <= fs.size(); j += 2*i)
                            ~~~~~~~ ^  ~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:101:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < seq.size(); i++){
                        ~ ^ ~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:133:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < seq.size(); j++){
                            ~ ^ ~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:146:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < rhs.size(); j++){
                            ~ ^ ~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:191:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < ps.size(); i++)
                        ~ ^ ~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:201:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < Cs.size(); i++)
                        ~ ^ ~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:214:18: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        if (digit_no == base.size()){
            ~~~~~~~~ ^  ~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:217:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < carry.size(); i++)
                            ~ ^ ~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:231:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < Cs.size(); i++){
                            ~ ^ ~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:245:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < carry.size(); i++)
                            ~ ^ ~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:255:29: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = B-1; i < result.size(); i += B)
                              ~ ^ ~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:261:31: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
                for (int j = 0; j < result.size(); j += B){
                                ~ ^ ~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:263:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
                    if (j + i < result.size())
                        ~~~~~ ^ ~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:264:59: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
                        out = OR(out, AND(result[j + i] , ((n >= result.size()) ? _true_ : ~result[n])));
                                                            ~ ^  ~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:284:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < base.size(); i++){
                        ~ ^ ~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:305:36: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
            Formula gt = (digit.size() > dig) ? digit[dig] : _false_;       // This digit is greater than the "dig" of 'num'.
                          ~~~~~~~~~~~~ ^ ~~~
    External/pblib/encoder/SortingNetworks.h:307:36: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
                         (digit.size() > dig-1) ? digit[dig-1] : _false_;   // This digit is greater than or equal to the "dig" of 'num'.
                          ~~~~~~~~~~~~ ^ ~~~~~
    External/pblib/pbo2maxsat.cpp:23:10: warning: unused variable 'tstart' [-Wunused-variable]
      double tstart = clock(), tend;
             ^
    External/pblib/pbo2maxsat.cpp:23:28: warning: unused variable 'tend' [-Wunused-variable]
      double tstart = clock(), tend;
                               ^
    36 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/preencoder.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/preencoder.o -std=c++11 --stdlib=libc++
    In file included from External/pblib/preencoder.cpp:1:
    In file included from External/pblib/preencoder.h:5:
    In file included from External/pblib/clausedatabase.h:9:
    External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 2; i < conjuncts.size(); ++i) {
                        ~ ^ ~~~~~~~~~~~~~~~~
    External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/preencoder.cpp:119:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<PBLib::WeightedLit, std::__1::allocator<PBLib::WeightedLit> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 1; i < literals.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~
    External/pblib/preencoder.cpp:219:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/preencoder.cpp:278:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/preencoder.cpp:318:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/preencoder.cpp:346:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/preencoder.cpp:394:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    15 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/helper.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/helper.o -std=c++11 --stdlib=libc++
    External/pblib/helper.cpp:12:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 1; i < clause.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~
    1 warning generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/auxvarmanager.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/auxvarmanager.o -std=c++11 --stdlib=libc++
    External/pblib/auxvarmanager.cpp:39:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < variables.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~
    1 warning generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/formula.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/formula.o -std=c++11 --stdlib=libc++
    In file included from External/pblib/formula.cpp:2:
    External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 2; i < conjuncts.size(); ++i) {
                        ~ ^ ~~~~~~~~~~~~~~~~
    External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.cpp:30:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.cpp:144:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < conjuncts.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~~~~
    11 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/incpbconstraint.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/incpbconstraint.o -std=c++11 --stdlib=libc++
    In file included from External/pblib/incpbconstraint.cpp:1:
    In file included from External/pblib/incpbconstraint.h:8:
    In file included from External/pblib/clausedatabase.h:9:
    External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 2; i < conjuncts.size(); ++i) {
                        ~ ^ ~~~~~~~~~~~~~~~~
    External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/incpbconstraint.cpp:28:38: warning: field 'comparator' will be initialized after field 'leq' [-Wreorder]
    IncPBConstraint::IncPBConstraint() : comparator(BOTH), leq(0), geq(0), init_leq(leq), init_geq(geq), isDualEncoded(false)
                                         ^
    External/pblib/incpbconstraint.cpp:35:163: warning: field 'comparator' will be initialized after field 'leq' [-Wreorder]
    IncPBConstraint::IncPBConstraint(vector<WeightedLit> const & literals, Comparator comparator, int64_t less_eq, int64_t greater_eq) : weighted_literals(literals), comparator(comparator), leq(less_eq), geq(greater_eq), init_leq(leq), init_geq(geq), isDualEncoded(false)
                                                                                                                                                                      ^
    External/pblib/incpbconstraint.cpp:39:141: warning: field 'comparator' will be initialized after field 'leq' [-Wreorder]
    IncPBConstraint::IncPBConstraint(vector<WeightedLit> const & literals, Comparator comparator, int64_t bound) : weighted_literals(literals), comparator(comparator), leq(0), geq(0), init_leq(leq), init_geq(geq), isDualEncoded(false)
                                                                                                                                                ^
    External/pblib/incpbconstraint.cpp:181:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < conditionals.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~~~
    13 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/IncSimplePBConstraint.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/IncSimplePBConstraint.o -std=c++11 --stdlib=libc++
    In file included from External/pblib/IncSimplePBConstraint.cpp:1:
    In file included from External/pblib/IncSimplePBConstraint.h:5:
    In file included from External/pblib/IncrementalData.h:5:
    In file included from External/pblib/clausedatabase.h:9:
    External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 2; i < conjuncts.size(); ++i) {
                        ~ ^ ~~~~~~~~~~~~~~~~
    External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/IncSimplePBConstraint.cpp:37:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < conditionals.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~~~
    External/pblib/IncSimplePBConstraint.cpp:62:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < conditionals.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~~~
    External/pblib/IncSimplePBConstraint.cpp:74:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < conditionals.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~~~
    12 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/PBConfig.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/PBConfig.o -std=c++11 --stdlib=libc++
    External/pblib/PBConfig.cpp:19:10: warning: unused variable 'sum_encodings' [-Wunused-variable]
      double sum_encodings = (num_adder_encodings + num_amo_encodings + num_bdd_clause_encodings + num_bdd_gates_encodings + num_card_encodings) / 100;
             ^
    1 warning generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/PBFuzzer.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/PBFuzzer.o -std=c++11 --stdlib=libc++
    In file included from External/pblib/PBFuzzer.cpp:8:
    In file included from External/pblib/preencoder.h:5:
    In file included from External/pblib/clausedatabase.h:9:
    External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 2; i < conjuncts.size(); ++i) {
                        ~ ^ ~~~~~~~~~~~~~~~~
    External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/PBFuzzer.cpp:27:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<PBLib::PBConstraint, std::__1::allocator<PBLib::PBConstraint> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < constraints.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~~
    External/pblib/PBFuzzer.cpp:109:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<PBLib::PBConstraint, std::__1::allocator<PBLib::PBConstraint> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < constraints.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~
    External/pblib/PBFuzzer.cpp:176:7: warning: unused variable 'leq' [-Wunused-variable]
      int leq;
          ^
    External/pblib/PBFuzzer.cpp:177:7: warning: unused variable 'geq' [-Wunused-variable]
      int geq;
          ^
    External/pblib/PBFuzzer.cpp:182:30: warning: comparison of integers of different signs: 'std::__1::vector<PBLib::PBConstraint, std::__1::allocator<PBLib::PBConstraint> >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
      while ( constraints.size() < number_of_constraints + 1)
              ~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~
    14 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/SimplePBConstraint.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/SimplePBConstraint.o -std=c++11 --stdlib=libc++
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/clausedatabase.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/clausedatabase.o -std=c++11 --stdlib=libc++
    In file included from External/pblib/clausedatabase.cpp:1:
    In file included from External/pblib/clausedatabase.h:9:
    External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 2; i < conjuncts.size(); ++i) {
                        ~ ^ ~~~~~~~~~~~~~~~~
    External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/clausedatabase.cpp:9:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::vector<int, std::__1::allocator<int> >, std::__1::allocator<std::__1::vector<int, std::__1::allocator<int> > > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < clauses.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~
    External/pblib/clausedatabase.cpp:165:24: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
                for (int i = 0; i < f->input_nodes.size(); ++i)
                                ~ ^ ~~~~~~~~~~~~~~~~~~~~~
    External/pblib/clausedatabase.cpp:174:24: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
                for (int i = 0; i < f->input_nodes.size(); ++i)
                                ~ ^ ~~~~~~~~~~~~~~~~~~~~~
    12 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/PBParser.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/PBParser.o -std=c++11 --stdlib=libc++
    In file included from External/pblib/PBParser.cpp:1:
    External/pblib/PBParser.h:675:8: warning: unused variable 'c' [-Wunused-variable]
                    char c;
                         ^
    1 warning generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/pbconstraint.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/pbconstraint.o -std=c++11 --stdlib=libc++
    External/pblib/pbconstraint.cpp:56:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<PBLib::WeightedLit, std::__1::allocator<PBLib::WeightedLit> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < weighted_literals.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/pbconstraint.cpp:66:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<PBLib::WeightedLit, std::__1::allocator<PBLib::WeightedLit> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < weighted_literals.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/pbconstraint.cpp:96:33: warning: field 'comparator' will be initialized after field 'leq' [-Wreorder]
    PBConstraint::PBConstraint() :  comparator(LEQ), leq(0), geq(0)
                                    ^
    External/pblib/pbconstraint.cpp:101:157: warning: field 'comparator' will be initialized after field 'leq' [-Wreorder]
    PBConstraint::PBConstraint(vector<WeightedLit> const & literals, Comparator comparator, int64_t less_eq, int64_t greater_eq) : weighted_literals(literals), comparator(comparator), leq(less_eq), geq(greater_eq)
                                                                                                                                                                ^
    External/pblib/pbconstraint.cpp:105:135: warning: field 'comparator' will be initialized after field 'leq' [-Wreorder]
    PBConstraint::PBConstraint(vector<WeightedLit> const & literals, Comparator comparator, int64_t bound) : weighted_literals(literals), comparator(comparator), leq(0), geq(0)
                                                                                                                                          ^
    External/pblib/pbconstraint.cpp:174:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < conditionals.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~~~
    6 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/IncrementalData.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/IncrementalData.o -std=c++11 --stdlib=libc++
    In file included from External/pblib/IncrementalData.cpp:1:
    In file included from External/pblib/IncrementalData.h:5:
    In file included from External/pblib/clausedatabase.h:9:
    External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 2; i < conjuncts.size(); ++i) {
                        ~ ^ ~~~~~~~~~~~~~~~~
    External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/IncrementalData.cpp:32:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < conditionals.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~
    External/pblib/IncrementalData.cpp:56:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < conditionals.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~
    External/pblib/IncrementalData.cpp:68:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < conditionals.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~
    12 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/encoder/cardencoding.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/cardencoding.o -std=c++11 --stdlib=libc++
    In file included from External/pblib/encoder/cardencoding.cpp:4:
    In file included from External/pblib/encoder/cardencoding.h:5:
    In file included from External/pblib/encoder/../IncSimplePBConstraint.h:5:
    In file included from External/pblib/IncrementalData.h:5:
    In file included from External/pblib/clausedatabase.h:9:
    External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 2; i < conjuncts.size(); ++i) {
                        ~ ^ ~~~~~~~~~~~~~~~~
    External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/encoder/cardencoding.cpp:20:22: warning: comparison of integers of different signs: 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') and 'int64_t' (aka 'long long') [-Wsign-compare]
      if (outlits.size() < newGeq)
          ~~~~~~~~~~~~~~ ^ ~~~~~~
    External/pblib/encoder/cardencoding.cpp:26:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < conditionals.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/cardencoding.cpp:35:22: warning: comparison of integers of different signs: 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') and 'int64_t' (aka 'long long') [-Wsign-compare]
      if (outlits.size() > newLeq)
          ~~~~~~~~~~~~~~ ^ ~~~~~~
    External/pblib/encoder/cardencoding.cpp:38:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < conditionals.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/cardencoding.cpp:88:21: warning: comparison of integers of different signs: 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') and 'int64_t' (aka 'long long') [-Wsign-compare]
      if (output.size() > leq) // if not, the constraint is always satisfiable (initially)
          ~~~~~~~~~~~~~ ^ ~~~
    External/pblib/encoder/cardencoding.cpp:94:23: warning: comparison of integers of different signs: 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') and 'int64_t' (aka 'long long') [-Wsign-compare]
        if (output.size() < pbconstraint->getGeq())
            ~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/cardencoding.cpp:101:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < pbconstraint->getConditionals().size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/cardencoding.cpp:132:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/cardencoding.cpp:159:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    18 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/encoder/BinaryMerge.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/BinaryMerge.o -std=c++11 --stdlib=libc++
    In file included from External/pblib/encoder/BinaryMerge.cpp:3:
    In file included from External/pblib/encoder/BinaryMerge.h:3:
    In file included from External/pblib/encoder/../IncSimplePBConstraint.h:5:
    In file included from External/pblib/IncrementalData.h:5:
    In file included from External/pblib/clausedatabase.h:9:
    External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 2; i < conjuncts.size(); ++i) {
                        ~ ^ ~~~~~~~~~~~~~~~~
    External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/encoder/BinaryMerge.cpp:55:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int i = 0; i < constraint.getConditionals().size(); ++i)
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/BinaryMerge.cpp:69:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::vector<int, std::__1::allocator<int> >, std::__1::allocator<std::__1::vector<int, std::__1::allocator<int> > > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < buckets.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~
    External/pblib/encoder/BinaryMerge.cpp:79:11: warning: comparison of integers of different signs: 'int64_t' (aka 'long long') and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        if (k <= buckets[i].size())
            ~ ^  ~~~~~~~~~~~~~~~~~
    External/pblib/encoder/BinaryMerge.cpp:86:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < constraint.getConditionals().size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/BinaryMerge.cpp:93:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < constraint.getConditionals().size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/BinaryMerge.cpp:114:10: warning: comparison of integers of different signs: 'int64_t' (aka 'long long') and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
              if (k == bucket_merge[i].size() || (config->use_watch_dog_encoding_in_binary_merger && k <= bucket_merge[i].size()) )
                  ~ ^  ~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/BinaryMerge.cpp:114:93: warning: comparison of integers of different signs: 'int64_t' (aka 'long long') and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
              if (k == bucket_merge[i].size() || (config->use_watch_dog_encoding_in_binary_merger && k <= bucket_merge[i].size()) )
                                                                                                     ~ ^  ~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/BinaryMerge.cpp:120:26: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
                  for (int i = 0; i < constraint.getConditionals().size(); ++i)
                                  ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/BinaryMerge.cpp:127:26: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
                  for (int i = 0; i < constraint.getConditionals().size(); ++i)
                                  ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/BinaryMerge.cpp:142:24: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for(int j = 1; j < bucket_card[0].size(); j = j + 2)
                         ~ ^ ~~~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/BinaryMerge.cpp:147:24: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for(int j = 1; j < bucket_merge[i].size(); j = j + 2)
                         ~ ^ ~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/BinaryMerge.cpp:171:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<PBLib::WeightedLit, std::__1::allocator<PBLib::WeightedLit> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < lits.size(); ++i)
                        ~ ^ ~~~~~~~~~~~
    External/pblib/encoder/BinaryMerge.cpp:188:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<PBLib::WeightedLit, std::__1::allocator<PBLib::WeightedLit> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < lits.size(); ++j)
                            ~ ^ ~~~~~~~~~~~
    External/pblib/encoder/BinaryMerge.cpp:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<PBLib::WeightedLit, std::__1::allocator<PBLib::WeightedLit> >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < lits.size(); ++j)
                              ~ ^ ~~~~~~~~~~~
    External/pblib/encoder/BinaryMerge.cpp:200:24: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
                for (int i = 0; i < constraint.getConditionals().size(); ++i)
                                ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/BinaryMerge.cpp:214:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<PBLib::WeightedLit, std::__1::allocator<PBLib::WeightedLit> >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < lits.size(); ++j)
                              ~ ^ ~~~~~~~~~~~
    External/pblib/encoder/BinaryMerge.cpp:218:24: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
                for (int i = 0; i < constraint.getConditionals().size(); ++i)
                                ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/BinaryMerge.cpp:225:13: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<PBLib::WeightedLit, std::__1::allocator<PBLib::WeightedLit> >::size_type' (aka 'unsigned long') [-Wsign-compare]
          if (i < lits.size())
              ~ ^ ~~~~~~~~~~~
    External/pblib/encoder/BinaryMerge.cpp:255:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < x.size(); ++i)
                        ~ ^ ~~~~~~~~
    External/pblib/encoder/BinaryMerge.cpp:261:15: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
        for (;  i < x.size() / 2; ++i)
                ~ ^ ~~~~~~~~~~~~
    External/pblib/encoder/BinaryMerge.cpp:263:15: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (;  i < x.size(); ++i)
                ~ ^ ~~~~~~~~
    External/pblib/encoder/BinaryMerge.cpp:281:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < v.size(); ++i)
                        ~ ^ ~~~~~~~~
    External/pblib/encoder/BinaryMerge.cpp:286:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < u.size(); ++i)
                        ~ ^ ~~~~~~~~
    External/pblib/encoder/BinaryMerge.cpp:291:23: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
        for (int i = 0; i < u.size() + v.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/BinaryMerge.cpp:294:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int a=0; a < u.size(); ++a)
                      ~ ^ ~~~~~~~~
    External/pblib/encoder/BinaryMerge.cpp:296:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int b=0; b < v.size(); ++b)
                        ~ ^ ~~~~~~~~
    External/pblib/encoder/BinaryMerge.cpp:302:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i=0; i < v.size(); ++i)
                      ~ ^ ~~~~~~~~
    External/pblib/encoder/BinaryMerge.cpp:307:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i=0; i < u.size(); ++i)
                      ~ ^ ~~~~~~~~
    37 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/encoder/commander_encoding.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/commander_encoding.o -std=c++11 --stdlib=libc++
    In file included from External/pblib/encoder/commander_encoding.cpp:1:
    In file included from External/pblib/encoder/commander_encoding.h:8:
    In file included from External/pblib/encoder/../IncSimplePBConstraint.h:5:
    In file included from External/pblib/IncrementalData.h:5:
    In file included from External/pblib/clausedatabase.h:9:
    External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 2; i < conjuncts.size(); ++i) {
                        ~ ^ ~~~~~~~~~~~~~~~~
    External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/encoder/commander_encoding.cpp:28:34: warning: comparison of integers of different signs: 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
      while (current_literals.size() > k)
             ~~~~~~~~~~~~~~~~~~~~~~~ ^ ~
    External/pblib/encoder/commander_encoding.cpp:32:19: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (i = 0; i < current_literals.size(); ++i)
                    ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/commander_encoding.cpp:36:32: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
          if (i % k == (k-1) || (i == current_literals.size() - 1) ) // is group full?
                                 ~ ^  ~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/commander_encoding.cpp:51:20: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
            for (int j = 0; j < _literals.size() - 1; ++j)
                            ~ ^ ~~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/commander_encoding.cpp:93:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    14 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/encoder/k-product.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/k-product.o -std=c++11 --stdlib=libc++
    In file included from External/pblib/encoder/k-product.cpp:2:
    In file included from External/pblib/encoder/k-product.h:7:
    In file included from External/pblib/encoder/../IncSimplePBConstraint.h:5:
    In file included from External/pblib/IncrementalData.h:5:
    In file included from External/pblib/clausedatabase.h:9:
    External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 2; i < conjuncts.size(); ++i) {
                        ~ ^ ~~~~~~~~~~~~~~~~
    External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/encoder/k-product.cpp:18:25: warning: comparison of integers of different signs: 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
        if (literals.size() < minimum_lit_count)
            ~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/encoder/k-product.cpp:53:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < literals.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~
    External/pblib/encoder/k-product.cpp:57:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::vector<int, std::__1::allocator<int> >, std::__1::allocator<std::__1::vector<int, std::__1::allocator<int> > > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int d = 0; d < dimensions.size(); ++d)
                          ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/encoder/k-product.cpp:67:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::vector<int, std::__1::allocator<int> >, std::__1::allocator<std::__1::vector<int, std::__1::allocator<int> > > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < dimensions.size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/encoder/k-product.cpp:132:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    14 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/encoder/naive_amo_encoder.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/naive_amo_encoder.o -std=c++11 --stdlib=libc++
    In file included from External/pblib/encoder/naive_amo_encoder.cpp:1:
    In file included from External/pblib/encoder/naive_amo_encoder.h:12:
    In file included from External/pblib/encoder/../IncSimplePBConstraint.h:5:
    In file included from External/pblib/IncrementalData.h:5:
    In file included from External/pblib/clausedatabase.h:9:
    External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 2; i < conjuncts.size(); ++i) {
                        ~ ^ ~~~~~~~~~~~~~~~~
    External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/encoder/naive_amo_encoder.cpp:7:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < literals.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~
    External/pblib/encoder/naive_amo_encoder.cpp:9:28: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int j = i + 1 ; j < literals.size(); ++j)
                             ~ ^ ~~~~~~~~~~~~~~~
    External/pblib/encoder/naive_amo_encoder.cpp:46:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    12 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/encoder/SWC.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/SWC.o -std=c++11 --stdlib=libc++
    In file included from External/pblib/encoder/SWC.cpp:1:
    In file included from External/pblib/encoder/SWC.h:7:
    In file included from External/pblib/encoder/../IncSimplePBConstraint.h:5:
    In file included from External/pblib/IncrementalData.h:5:
    In file included from External/pblib/clausedatabase.h:9:
    External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 2; i < conjuncts.size(); ++i) {
                        ~ ^ ~~~~~~~~~~~~~~~~
    External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/encoder/SWC.cpp:95:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/SWC.cpp:110:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < conditionals.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/SWC.cpp:122:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < conditionals.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~
    12 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/encoder/adderencoding.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/adderencoding.o -std=c++11 --stdlib=libc++
    In file included from External/pblib/encoder/adderencoding.cpp:2:
    In file included from External/pblib/encoder/adderencoding.h:3:
    In file included from External/pblib/encoder/../IncSimplePBConstraint.h:5:
    In file included from External/pblib/IncrementalData.h:5:
    In file included from External/pblib/clausedatabase.h:9:
    External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 2; i < conjuncts.size(); ++i) {
                        ~ ^ ~~~~~~~~~~~~~~~~
    External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/encoder/adderencoding.cpp:18:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < kBits.size(); ++i) // negate everythink
                      ~ ^ ~~~~~~~~~~~~
    External/pblib/encoder/adderencoding.cpp:24:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < kBits.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~
    External/pblib/encoder/adderencoding.cpp:29:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < conditionals.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/adderencoding.cpp:41:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < conditionals.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/adderencoding.cpp:124:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::queue<int, std::__1::deque<int, std::__1::allocator<int> > >, std::__1::allocator<std::__1::queue<int, std::__1::deque<int, std::__1::allocator<int> > > > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for ( int i = 0; i < buckets.size(); i++ ) {
                       ~ ^ ~~~~~~~~~~~~~~
    External/pblib/encoder/adderencoding.cpp:128:14: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
          if ( i == buckets.size() - 1 && buckets[i].size() >= 2 ) {
               ~ ^  ~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/adderencoding.cpp:170:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for ( int i = 0; i < xs.size(); ++i ) {
                       ~ ^ ~~~~~~~~~
    External/pblib/encoder/adderencoding.cpp:178:30: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for ( int j = i + 1; j < xs.size(); ++j )
                               ~ ^ ~~~~~~~~~
    External/pblib/encoder/adderencoding.cpp:236:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < result.size(); ++i) {
                      ~ ^ ~~~~~~~~~~~~~
    External/pblib/encoder/adderencoding.cpp:303:34: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<PBLib::WeightedLit, std::__1::allocator<PBLib::WeightedLit> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for ( int iVar = 0; iVar < pbconstraint.getWeightedLiterals().size(); ++iVar ) {
                                ~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/adderencoding.cpp:329:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < kBits.size(); ++i) // negate everythink
                            ~ ^ ~~~~~~~~~~~~
    External/pblib/encoder/adderencoding.cpp:335:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < kBits.size(); ++i) // negate everythink
                            ~ ^ ~~~~~~~~~~~~
    External/pblib/encoder/adderencoding.cpp:346:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                        ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    22 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/encoder/BDD_Seq_Amo.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/BDD_Seq_Amo.o -std=c++11 --stdlib=libc++
    In file included from External/pblib/encoder/BDD_Seq_Amo.cpp:1:
    In file included from External/pblib/encoder/BDD_Seq_Amo.h:13:
    In file included from External/pblib/encoder/../IncSimplePBConstraint.h:5:
    In file included from External/pblib/IncrementalData.h:5:
    In file included from External/pblib/clausedatabase.h:9:
    External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 2; i < conjuncts.size(); ++i) {
                        ~ ^ ~~~~~~~~~~~~~~~~
    External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/encoder/BDD_Seq_Amo.cpp:37:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/BDD_Seq_Amo.cpp:60:21: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
      for (int i = 0; i < literals.size() - 2; ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~
    11 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/encoder/bdd.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/bdd.o -std=c++11 --stdlib=libc++
    In file included from External/pblib/encoder/bdd.cpp:1:
    In file included from External/pblib/encoder/bdd.h:16:
    In file included from External/pblib/encoder/../clausedatabase.h:9:
    External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 2; i < conjuncts.size(); ++i) {
                        ~ ^ ~~~~~~~~~~~~~~~~
    External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/encoder/bdd.cpp:191:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/bdd.cpp:250:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    In file included from External/pblib/encoder/bdd.cpp:1:
    External/pblib/encoder/bdd.h:41:11: warning: private field 'current_node_id' is not used [-Wunused-private-field]
      int32_t current_node_id = 3;
              ^
    12 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/encoder/amo.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/amo.o -std=c++11 --stdlib=libc++
    In file included from External/pblib/encoder/amo.cpp:2:
    In file included from External/pblib/encoder/amo.h:7:
    In file included from External/pblib/encoder/../IncSimplePBConstraint.h:5:
    In file included from External/pblib/IncrementalData.h:5:
    In file included from External/pblib/clausedatabase.h:9:
    External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 2; i < conjuncts.size(); ++i) {
                        ~ ^ ~~~~~~~~~~~~~~~~
    External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/encoder/amo.cpp:93:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    10 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/encoder/binary_amo.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/binary_amo.o -std=c++11 --stdlib=libc++
    In file included from External/pblib/encoder/binary_amo.cpp:2:
    In file included from External/pblib/encoder/binary_amo.h:7:
    In file included from External/pblib/encoder/../IncSimplePBConstraint.h:5:
    In file included from External/pblib/IncrementalData.h:5:
    In file included from External/pblib/clausedatabase.h:9:
    External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 2; i < conjuncts.size(); ++i) {
                        ~ ^ ~~~~~~~~~~~~~~~~
    External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/encoder/binary_amo.cpp:87:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    10 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/encoder/sorting_merging.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/sorting_merging.o -std=c++11 --stdlib=libc++
    In file included from External/pblib/encoder/sorting_merging.cpp:3:
    In file included from External/pblib/encoder/sorting_merging.h:5:
    In file included from External/pblib/encoder/../IncSimplePBConstraint.h:5:
    In file included from External/pblib/IncrementalData.h:5:
    In file included from External/pblib/clausedatabase.h:9:
    External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 2; i < conjuncts.size(); ++i) {
                        ~ ^ ~~~~~~~~~~~~~~~~
    External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/encoder/sorting_merging.cpp:320:11: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        if (i < odd_merge.size() && j < even_merge.size())
            ~ ^ ~~~~~~~~~~~~~~~~
    External/pblib/encoder/sorting_merging.cpp:320:35: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        if (i < odd_merge.size() && j < even_merge.size())
                                    ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/encoder/sorting_merging.cpp:323:29: warning: comparison of integers of different signs: 'unsigned long' and 'int' [-Wsign-compare]
          if (output.size() + 2 <= c)
              ~~~~~~~~~~~~~~~~~ ^  ~
    External/pblib/encoder/sorting_merging.cpp:332:20: warning: comparison of integers of different signs: 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
            if (output.size() == c)
                ~~~~~~~~~~~~~ ^  ~
    External/pblib/encoder/sorting_merging.cpp:336:29: warning: comparison of integers of different signs: 'unsigned long' and 'int' [-Wsign-compare]
          if (output.size() + 1 == c)
              ~~~~~~~~~~~~~~~~~ ^  ~
    External/pblib/encoder/sorting_merging.cpp:345:11: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        if (i >= odd_merge.size() && j >= even_merge.size())
            ~ ^  ~~~~~~~~~~~~~~~~
    External/pblib/encoder/sorting_merging.cpp:345:36: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        if (i >= odd_merge.size() && j >= even_merge.size())
                                     ~ ^  ~~~~~~~~~~~~~~~~~
    External/pblib/encoder/sorting_merging.cpp:348:11: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        if (i >= odd_merge.size())
            ~ ^  ~~~~~~~~~~~~~~~~
    External/pblib/encoder/sorting_merging.cpp:375:7: warning: unused variable 'n' [-Wunused-variable]
      int n = a + b;
          ^
    18 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/encoder/Encoder.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/Encoder.o -std=c++11 --stdlib=libc++
    In file included from External/pblib/encoder/Encoder.cpp:1:
    In file included from External/pblib/encoder/Encoder.h:6:
    In file included from External/pblib/encoder/../IncSimplePBConstraint.h:5:
    In file included from External/pblib/IncrementalData.h:5:
    In file included from External/pblib/clausedatabase.h:9:
    External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 2; i < conjuncts.size(); ++i) {
                        ~ ^ ~~~~~~~~~~~~~~~~
    External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    9 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/encoder/bimander_amo_encoding.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/bimander_amo_encoding.o -std=c++11 --stdlib=libc++
    In file included from External/pblib/encoder/bimander_amo_encoding.cpp:3:
    In file included from External/pblib/encoder/bimander_amo_encoding.h:8:
    In file included from External/pblib/encoder/../IncSimplePBConstraint.h:5:
    In file included from External/pblib/IncrementalData.h:5:
    In file included from External/pblib/clausedatabase.h:9:
    External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 2; i < conjuncts.size(); ++i) {
                        ~ ^ ~~~~~~~~~~~~~~~~
    External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/encoder/bimander_amo_encoding.cpp:72:17: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (i = 0; i < literals.size(); )
                  ~ ^ ~~~~~~~~~~~~~~~
    External/pblib/encoder/bimander_amo_encoding.cpp:87:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::vector<int, std::__1::allocator<int> >, std::__1::allocator<std::__1::vector<int, std::__1::allocator<int> > > >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < groups.size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~
    External/pblib/encoder/bimander_amo_encoding.cpp:117:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int g = 0; g < groups[index].size(); ++g)
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/bimander_amo_encoding.cpp:124:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int g = 0; g < groups[index].size(); ++g)
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/bimander_amo_encoding.cpp:143:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int g = 0; g < groups[index].size(); ++g)
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/bimander_amo_encoding.cpp:150:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int g = 0; g < groups[index].size(); ++g)
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~
    External/pblib/encoder/bimander_amo_encoding.cpp:183:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    16 warnings generated.
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/anaconda3/include -arch x86_64 -I/usr/local/anaconda3/include -arch x86_64 -IExternal/pblib -IModules/pblib -I/usr/local/anaconda3/include/python3.7m -c External/pblib/encoder/SortingNetworks.cpp -o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/SortingNetworks.o -std=c++11 --stdlib=libc++
    In file included from External/pblib/encoder/SortingNetworks.cpp:1:
    In file included from External/pblib/encoder/SortingNetworks.h:3:
    In file included from External/pblib/encoder/../IncSimplePBConstraint.h:5:
    In file included from External/pblib/IncrementalData.h:5:
    In file included from External/pblib/clausedatabase.h:9:
    External/pblib/formula.h:163:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:184:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 2; i < conjuncts.size(); ++i) {
                        ~ ^ ~~~~~~~~~~~~~~~~
    External/pblib/formula.h:191:25: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
          for (int i = 0; i < it->second.size(); ++i)
                          ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:196:22: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
              for (int j = 0; j < it->second[i]->input_nodes.size(); ++j) {
                              ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:223:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:249:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:290:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:325:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    External/pblib/formula.h:362:20: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < it->second.size(); ++i)
                            ~ ^ ~~~~~~~~~~~~~~~~~
    In file included from External/pblib/encoder/SortingNetworks.cpp:1:
    External/pblib/encoder/SortingNetworks.h:38:23: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
        for (int i = 0; i < fs.size() / 2; i++){
                        ~ ^ ~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:47:23: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
        for (int i = 0; i < fs.size() / 2; i++){
                        ~ ^ ~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:67:27: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
            for (int i = 1; i < tmp.size() - 1; i += 2)
                            ~ ^ ~~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:69:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < tmp.size(); i++)
                            ~ ^ ~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:80:29: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        int sz; for (sz = 1; sz < fs.size(); sz *= 2);
                             ~~ ^ ~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:82:19: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
        if (fs.size() < sz)
            ~~~~~~~~~ ^ ~~
    External/pblib/encoder/SortingNetworks.h:86:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 1; i < fs.size(); i *= 2)
                        ~ ^ ~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:87:33: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j + 2*i <= fs.size(); j += 2*i)
                            ~~~~~~~ ^  ~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:101:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < seq.size(); i++){
                        ~ ^ ~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:133:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < seq.size(); j++){
                            ~ ^ ~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:146:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int j = 0; j < rhs.size(); j++){
                            ~ ^ ~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:191:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < ps.size(); i++)
                        ~ ^ ~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:201:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < Cs.size(); i++)
                        ~ ^ ~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:214:18: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        if (digit_no == base.size()){
            ~~~~~~~~ ^  ~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:217:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < carry.size(); i++)
                            ~ ^ ~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:231:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<long long, std::__1::allocator<long long> >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < Cs.size(); i++){
                            ~ ^ ~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:245:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = 0; i < carry.size(); i++)
                            ~ ^ ~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:255:29: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
            for (int i = B-1; i < result.size(); i += B)
                              ~ ^ ~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:261:31: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
                for (int j = 0; j < result.size(); j += B){
                                ~ ^ ~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:263:27: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
                    if (j + i < result.size())
                        ~~~~~ ^ ~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:264:59: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') [-Wsign-compare]
                        out = OR(out, AND(result[j + i] , ((n >= result.size()) ? _true_ : ~result[n])));
                                                            ~ ^  ~~~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:284:23: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
        for (int i = 0; i < base.size(); i++){
                        ~ ^ ~~~~~~~~~~~
    External/pblib/encoder/SortingNetworks.h:305:36: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
            Formula gt = (digit.size() > dig) ? digit[dig] : _false_;       // This digit is greater than the "dig" of 'num'.
                          ~~~~~~~~~~~~ ^ ~~~
    External/pblib/encoder/SortingNetworks.h:307:36: warning: comparison of integers of different signs: 'std::__1::vector<std::__1::shared_ptr<FormulaClass>, std::__1::allocator<std::__1::shared_ptr<FormulaClass> > >::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
                         (digit.size() > dig-1) ? digit[dig-1] : _false_;   // This digit is greater than or equal to the "dig" of 'num'.
                          ~~~~~~~~~~~~ ^ ~~~~~
    External/pblib/encoder/SortingNetworks.cpp:15:21: warning: comparison of integers of different signs: 'int' and 'std::__1::vector<int, std::__1::allocator<int> >::size_type' (aka 'unsigned long') [-Wsign-compare]
      for (int i = 0; i < pbconstraint.getConditionals().size(); ++i)
                      ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    34 warnings generated.
    g++ -bundle -undefined dynamic_lookup -L/usr/local/anaconda3/lib -arch x86_64 -L/usr/local/anaconda3/lib -arch x86_64 -arch x86_64 build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_incpbconstraint.o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_module.o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_pbparser.o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/aux_var_manager.o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_pb2cnf.o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_weightedlit.o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/helper.o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_vectorclausedatabase.o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_pbconfig.o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_statistic.o build/temp.macosx-10.7-x86_64-3.7/Modules/pblib/pblib_pbconstraint.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/pb2cnf.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/VectorClauseDatabase.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/pbo2maxsat.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/preencoder.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/helper.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/auxvarmanager.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/formula.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/incpbconstraint.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/IncSimplePBConstraint.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/PBConfig.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/PBFuzzer.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/SimplePBConstraint.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/clausedatabase.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/PBParser.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/pbconstraint.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/IncrementalData.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/cardencoding.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/BinaryMerge.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/commander_encoding.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/k-product.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/naive_amo_encoder.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/SWC.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/adderencoding.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/BDD_Seq_Amo.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/bdd.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/amo.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/binary_amo.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/sorting_merging.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/Encoder.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/bimander_amo_encoding.o build/temp.macosx-10.7-x86_64-3.7/External/pblib/encoder/SortingNetworks.o -lc++ -o build/lib.macosx-10.7-x86_64-3.7/pypblib/pblib.cpython-37m-darwin.so
    clang: warning: libstdc++ is deprecated; move to libc++ with a minimum deployment target of OS X 10.9 [-Wdeprecated]
    ld: library not found for -lstdc++
    clang: error: linker command failed with exit code 1 (use -v to see invocation)
    error: command 'g++' failed with exit status 1
    
    ----------------------------------------
Command "/usr/local/anaconda3/bin/python -u -c "import setuptools, tokenize;__file__='/private/var/folders/cy/bwkh61td0dl34kq4z3glqwww0000gn/T/pip-install-a718izzn/pypblib/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /private/var/folders/cy/bwkh61td0dl34kq4z3glqwww0000gn/T/pip-record-fac0bx_j/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /private/var/folders/cy/bwkh61td0dl34kq4z3glqwww0000gn/T/pip-install-a718izzn/pypblib/
MacBook-Pro-2:~ wphun1$