person getStage(id, -1) crashes sumo

[atellyro]

Running the scenario of Dillip you get for some persons this stack trace
SumoCrash.tar.gz

Program received signal SIGSEGV, Segmentation fault.
0x0000000000000000 in ?? ()
(gdb) bt
#0 0x0000000000000000 in ?? ()
#1 0x00005555562a14de in MSStageDriving::getDistance (this=0x5555584dd930) at /dosd/src/opensource/Sumo/sumo-git-co/sumo/src/microsim/transportables/MSStageDriving.cpp:134
#2 0x00005555560582b9 in libsumo::Person::getStage (personID="2364", nextStageIndex=-1) at /dosd/src/opensource/Sumo/sumo-git-co/sumo/src/libsumo/Person.cpp:234
#3 0x0000555555ff2379 in TraCIServerAPI_Person::processGet (server=..., inputStorage=..., outputStorage=...) at /dosd/src/opensource/Sumo/sumo-git-co/sumo/src/traci-server/TraCIServerAPI_Person.cpp:63
#4 0x0000555555fdbe6e in TraCIServer::dispatchCommand (this=0x5555569247a0) at /dosd/src/opensource/Sumo/sumo-git-co/sumo/src/traci-server/TraCIServer.cpp:752
#5 0x0000555555fdb3b7 in TraCIServer::processCommandsUntilSimStep (this=0x5555569247a0, step=1935000) at /dosd/src/opensource/Sumo/sumo-git-co/sumo/src/traci-server/TraCIServer.cpp:602
#6 0x0000555555e21756 in MSNet::simulationStep (this=0x555556939660) at /dosd/src/opensource/Sumo/sumo-git-co/sumo/src/microsim/MSNet.cpp:524
#7 0x0000555555e1f08b in MSNet::simulate (this=0x555556939660, start=0, stop=36000000) at /dosd/src/opensource/Sumo/sumo-git-co/sumo/src/microsim/MSNet.cpp:355
#8 0x0000555555e1c29c in main (argc=2, argv=0x7fffffffdb98) at /dosd/src/opensource/Sumo/sumo-git-co/sumo/src/sumo_main.cpp:107
(gdb) up
#1 0x00005555562a14de in MSStageDriving::getDistance (this=0x5555584dd930) at /dosd/src/opensource/Sumo/sumo-git-co/sumo/src/microsim/transportables/MSStageDriving.cpp:134
134 return myVehicle->getOdometer() - myVehicleDistance;
(gdb) p *myVehicle
$1 = { = { = {_vptr.Named = 0x555557eba000, myID = " \347\036XUU\000"}, }, }

[atellyro]

If you run sumoD with valgrind (under Linux) you get this info

==132033== Invalid read of size 8
==132033== at 0xE554CC: MSStageDriving::getDistance() const (MSStageDriving.cpp:134)
==132033== by 0xC0C2B8: libsumo::Person::getStage(std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, int) (Person.cpp:234)
==132033== by 0xBA6378: TraCIServerAPI_Person::processGet(TraCIServer&, tcpip::Storage&, tcpip::Storage&) (TraCIServerAPI_Person.cpp:63)
==132033== by 0xB8FE6D: TraCIServer::dispatchCommand() (TraCIServer.cpp:752)
==132033== by 0xB8F3B6: TraCIServer::processCommandsUntilSimStep(long long) (TraCIServer.cpp:602)
==132033== by 0x9D5755: MSNet::simulationStep() (MSNet.cpp:524)
==132033== by 0x9D308A: MSNet::simulate(long long, long long) (MSNet.cpp:355)
==132033== by 0x9D029B: main (sumo_main.cpp:107)
==132033== Address 0x98ed580 is 0 bytes inside a block of size 784 free'd
==132033== at 0x483CFBF: operator delete(void*) (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==132033== by 0xA6853D: MSVehicle::~MSVehicle() (MSVehicle.cpp:1042)
==132033== by 0xAB46B2: MSVehicleControl::deleteVehicle(SUMOVehicle*, bool) (MSVehicleControl.cpp:314)
==132033== by 0xAB3775: MSVehicleControl::removePending() (MSVehicleControl.cpp:166)
==132033== by 0xAFDEE5: MSEdgeControl::executeMovements(long long) (MSEdgeControl.cpp:199)
==132033== by 0x9D5B53: MSNet::simulationStep() (MSNet.cpp:579)
==132033== by 0x9D308A: MSNet::simulate(long long, long long) (MSNet.cpp:355)
==132033== by 0x9D029B: main (sumo_main.cpp:107)
==132033== Block was alloc'd at
==132033== at 0x483BE63: operator new(unsigned long) (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==132033== by 0xAB3093: MSVehicleControl::buildVehicle(SUMOVehicleParameter*, MSRoute const*, MSVehicleType*, bool, bool) (MSVehicleControl.cpp:106)
==132033== by 0xB0E361: MSInsertionControl::determineCandidates(long long) (MSInsertionControl.cpp:221)
==132033== by 0x9D5CCE: MSNet::simulationStep() (MSNet.cpp:602)
==132033== by 0x9D308A: MSNet::simulate(long long, long long) (MSNet.cpp:355)
==132033== by 0x9D029B: main (sumo_main.cpp:107)
==132033==
==132033==
==132033== Process terminating with default action of signal 11 (SIGSEGV)
==132033== Bad permissions for mapped region at address 0x1427B48
==132033== at 0x1427B48: ??? (in /dosd/src/opensource/Sumo/sumo-git-co/sumo/bin/sumoD)
==132033== by 0xC0C2B8: libsumo::Person::getStage(std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, int) (Person.cpp:234)
==132033== by 0xBA6378: TraCIServerAPI_Person::processGet(TraCIServer&, tcpip::Storage&, tcpip::Storage&) (TraCIServerAPI_Person.cpp:63)
==132033== by 0xB8FE6D: TraCIServer::dispatchCommand() (TraCIServer.cpp:752)
==132033== by 0xB8F3B6: TraCIServer::processCommandsUntilSimStep(long long) (TraCIServer.cpp:602)
==132033== by 0x9D5755: MSNet::simulationStep() (MSNet.cpp:524)
==132033== by 0x9D308A: MSNet::simulate(long long, long long) (MSNet.cpp:355)
==132033== by 0x9D029B: main (sumo_main.cpp:107)
==132033==

I think the programm tries to comute the distance to a vehicle, which is deleted.

[atellyro]

To reproduce the error on Linux run the script demi-i_hs.py with the option --gdb and start parallel a sumoD with gdb or valgrind
The problem occurs after some minutes run frist with person 2209, than with bperson 2364