(gdb) bt
#0  0x40e4dd38 in raise ()
   from /lib/libc.so.6
#1  0x40e4ea7e in abort ()
   from /lib/libc.so.6
#2  0x40cd0dc4 in __gnu_cxx::__verbose_terminate_handler() ()
   from /usr/lib/libstdc++.so.6
#3  0x40cced50 in ?? ()
   from /usr/lib/libstdc++.so.6
 to quit---turn> to continue, or q <return> 
#4  0x40cced50 in ?? ()
   from /usr/lib/libstdc++.so.6
Backtrace stopped: previous frame identical to this frame (corrupt stack?)