Program received signal SIGFPE, Arithmetic exception. [Switching to Thread 0x7f207ca796f0 (LWP 25344)] 0x000000000065503d in GroundVehicle::GetAcceleration (this=0xf78930) at /home/terom/dev/openttd/src/ground_vehicle.cpp:144 144 return (force - resistance) / (mass * 2); (gdb) bt #0 0x000000000065503d in GroundVehicle::GetAcceleration (this=0xf78930) at /home/terom/dev/openttd/src/ground_vehicle.cpp:144 #1 0x000000000072b3a5 in RoadVehAccelerate (v=0xf0) at /home/terom/dev/openttd/src/roadveh_cmd.cpp:761 #2 0x000000000072d153 in RoadVehController (v=0xf78930) at /home/terom/dev/openttd/src/roadveh_cmd.cpp:1597 #3 0x000000000072d263 in RoadVehicle::Tick (this=0xf78930) at /home/terom/dev/openttd/src/roadveh_cmd.cpp:1641 #4 0x00000000007c05ac in CallVehicleTicks () at /home/terom/dev/openttd/src/vehicle.cpp:744 #5 0x00000000006cd5e5 in StateGameLoop () at /home/terom/dev/openttd/src/openttd.cpp:1224 #6 0x00000000006ce5e2 in GameLoop () at /home/terom/dev/openttd/src/openttd.cpp:1304 #7 0x00000000007cb14f in VideoDriver_SDL::MainLoop (this=) at /home/terom/dev/openttd/src/video/sdl_v.cpp:578 #8 0x00000000006cf23b in ttd_main (argc=, argv=0x7fff84aa5038) at /home/terom/dev/openttd/src/openttd.cpp:755 #9 0x00007f2079cbb1c4 in __libc_start_main () from /lib/libc.so.6 #10 0x00000000005694e9 in _start () (gdb) p mass $1 = 0