#0 0x0000000000401b94 in ?? () #1 0x0000000000409110 in ?? () #2 0x000000000040a4ec in ?? () #3 0x0000000000401a57 in ?? () #4 0x00007f7a57fdc30d in __libc_start_main (main=0x401780, argc=2, ubp_av=0x7fff287ca608, init=, fini=, rtld_fini=, stack_end=0x7fff287ca5f8) at libc-start.c:226 [Error: libc-start.c was not found in source tree] #5 0x0000000000401aad in ?? () #6 0x00007fff287ca5f8 in ?? () #7 0x000000000000001c in ?? () #8 0x0000000000000002 in ?? () #9 0x00007fff287cc1de in ?? () #10 0x00007fff287cc1e4 in ?? () #11 0x0000000000000000 in ?? ()