Obtained 33 stack frames.
/usr/games/crawl-0.19(_Z17write_stack_traceP8_IO_FILEi+0x23) [0x679843]: write_stack_trace(_IO_FILE*, int)
/usr/games/crawl-0.19(_Z20crash_signal_handleri+0x174) [0x679bb4]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x321e0) [0x7f4b242e11e0]: 
/usr/games/crawl-0.19() [0x866480]
/lib/x86_64-linux-gnu/libc.so.6(+0x321e0) [0x7f4b242e11e0]: 
/lib/x86_64-linux-gnu/libpthread.so.0(waitpid+0x1c) [0x7f4b24649c4c]: 
/usr/games/crawl-0.19(_Z8call_gdbP8_IO_FILE+0x1c3) [0x679f03]: call_gdb(_IO_FILE*)
/usr/games/crawl-0.19(_Z13do_crash_dumpv+0x2d1) [0x680521]: do_crash_dump()
/usr/games/crawl-0.19(_Z20crash_signal_handleri+0x74) [0x679ab4]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x321e0) [0x7f4b242e11e0]: 
/lib/x86_64-linux-gnu/libpthread.so.0(raise+0x2b) [0x7f4b24649f6b]: 
/usr/games/crawl-0.19() [0x67fda4]
/usr/games/crawl-0.19() [0x68002a]
/usr/games/crawl-0.19(_ZN7ray_def7advanceEv+0x180) [0xa37570]: ray_def::advance()
/usr/games/crawl-0.19(_ZN21targetter_thunderbolt7set_aimE9coord_def+0xa35) [0xb0ffc5]: targetter_thunderbolt::set_aim(coord_def)
/usr/games/crawl-0.19() [0x6dc873]
/usr/games/crawl-0.19(_ZNSt17_Function_handlerIFbRK9coord_defESt5_BindIFPFbS2_14targ_mode_typebiP9targetter8aff_typeS8_ESt12_PlaceholderILi1EES5_biS7_S8_S8_EEE9_M_invokeERKSt9_Any_dataS2_+0x27) [0x6e68f7]: std::_Function_handler<bool (coord_def const&), std::_Bind<bool (*(std::_Placeholder<1>, targ_mode_type, bool, int, targetter*, aff_type, aff_type))(coord_def const&, targ_mode_type, bool, int, targetter*, aff_type, aff_type)> >::_M_invoke(std::_Any_data const&, coord_def const&)
/usr/games/crawl-0.19() [0x6dbbfa]
/usr/games/crawl-0.19() [0x6dbfbf]
/usr/games/crawl-0.19(_ZNK17direction_chooser27find_default_monster_targetER9coord_def+0x217) [0x6dcb67]: direction_chooser::find_default_monster_target(coord_def&) const
/usr/games/crawl-0.19(_ZNK17direction_chooser19find_default_targetEv+0x28) [0x6dd038]: direction_chooser::find_default_target() const
/usr/games/crawl-0.19(_ZN17direction_chooser16choose_directionEv+0x1e3) [0x6e4333]: direction_chooser::choose_direction()
/usr/games/crawl-0.19(_Z9directionR4distRK22direction_chooser_args+0x22) [0x6e4442]: direction(dist&, direction_chooser_args const&)
/usr/games/crawl-0.19(_Z15spell_directionR4distR4boltP22direction_chooser_args+0x1bc) [0xac4e1c]: spell_direction(dist&, bolt&, direction_chooser_args*)
/usr/games/crawl-0.19(_Z11your_spells10spell_typeibbb+0x75a) [0xa8507a]: your_spells(spell_type, int, bool, bool, bool)
/usr/games/crawl-0.19() [0x71ba44]
/usr/games/crawl-0.19(_Z10evoke_itemib+0x284) [0x71c134]: evoke_item(int, bool)
/usr/games/crawl-0.19(_Z15process_command12command_type+0x403) [0xbb7773]: process_command(command_type)
/usr/games/crawl-0.19() [0xbba699]
/usr/games/crawl-0.19() [0xbbb2c5]
/usr/games/crawl-0.19(main+0x2eb) [0x5e6a0b]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xfd) [0x7f4b242cdead]: 
/usr/games/crawl-0.19() [0x5e6fbd]