#0  0x00007fc268e2dd05 in raise () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007fc268e31ab6 in abort () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#2  0x00007fc268e66d7b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#3  0x00007fc268e72a8f in ?? () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#4  0x00007fc268e768e3 in free () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#5  0x000000000040342e in main ()
No symbol table info available.