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GenMC

Generic Model Checking for C Programs

GenMC is a stateless model checker for C programs that works on the level of LLVM Intermediate Representation.

This repository mirrors an internal repository and is only updated periodically. For changes between different versions please refer to the CHANGELOG.

Author: Michalis Kokologiannakis.

Getting GenMC

Using Docker

To pull a container containing GenMC from Docker Hub please issue the following command:

	docker pull genmc/genmc

Building from source

Dependencies

The LLVM versions currently supported are: 3.8.1, 4.0.1, 6.0.1, 7.0.1, 8.0.1, 9.0.1, 10.0.1, 11.0.0.

GNU/Linux

In order to use the tool on a Debian-based installation, you will need the following packages:

	autoconf  automake  clang  libclang-dev  llvm  llvm-dev  libffi-dev
	zlib1g-dev libedit-dev
Max OS X

Using brew, the following packages are necessary:

	autoconf automake llvm libffi

Installing

GNU/Linux

For a default build issue:

	autoreconf --install
	./configure
	make

This will leave the genmc executable in the src directory. You can either run it from there (as in the examples below), or issue make install.

Alternatively, the following following command will build the genmc executable in parallel and will also run a subset of all the tests that come with the system to see if the system was built correctly or not:

	make -j ctest
Mac OS X

For a default build issue:

	autoreconf --install
	./configure AR=llvm-ar
	make

Usage

  • To see a list of available options run:

      ./src/genmc --help
    
  • To run a particular testcase run:

      ./src/genmc [options] <file>
    
  • For more detailed usage examples please refer to the manual.

Troubleshooting

  • Undefined references to symbols that involve types std::__cxx11 during linking:

    This probably indicates that you are using an old version of LLVM with a new version of libstdc++. Configuring with the following flags should fix the problem:

      	CXXFLAGS="-D_GLIBCXX_USE_CXX11_ABI=0" ./configure --with-llvm=LLVM_PATH
    
  • Linking problems under Arch Linux:

    Arch Linux does not provide the libclang*.a files required for linking against clang libraries. In order to for linking to succeed, please change the last line in src/Makefile.am to the following:

      	genmc_LDADD = libgenmc.a -lclang-cpp
    

License

GenMC (with the exception of some files, see Exceptions) is distributed under the GPL, version 3 or (at your option) later. Please see the COPYING file for details on GPLv3.

Exceptions

Part of the code in the files listed below are originating from the LLVM Compiler Framework, version 3.5. These parts are licensed under the University of Illinois/NCSA Open Source License as well as under GPLv3. Please see the LLVMLICENSE file for details on the University of Illinois/NCSA Open Source License.

	src/Interpreter.h
	src/Interpreter.cpp
	src/Execution.cpp
	src/ExternalFunctions.cpp

Additionally, the files within the include directory are licensed under their own licenses.

Please see the respective header for more information on a specific file's license.

Contact

For feedback, questions, and bug reports please send an e-mail to michalis AT mpi-sws DOT org.