#0  0x00002aaaaf7e5978 in ?? () from /lib/libgcc_s.so.1
#1  0x00002aaaaf7e6b9c in _Unwind_Backtrace () from /lib/libgcc_s.so.1
#2  0x00002b6375551913 in backtrace () from /lib/libc.so.6
#3  0x000000000056146d in ?? ()
#4  0x0000000000540fa0 in ?? ()
#5  <signal handler called>
#6  0x0000004001402000 in ?? ()
#7  0x000000004029e4b9 in ?? ()
#8  0x00002aaaaf507480 in ?? ()
#9  0x0000000000904e48 in ?? ()
#10 0x000000004024780b in ?? ()
#11 0x000000004023988e in ?? ()
#12 0x0000000000000000 in ?? ()