. Thread 1 (Thread 0x7fc28093a880 (LWP 28497)): #0 0x000055d99a2c6ee7 in ?? () No symbol table info available. #1 0x000055d99a2bf84c in ?? () No symbol table info available. #2 0x000055d99a2c6cbd in ?? () No symbol table info available. #3 0x000055d99a2c7647 in ?? () No symbol table info available. #4 0x000055d99a2c845b in ?? () No symbol table info available. #5 0x000055d99a302563 in ?? () No symbol table info available. #6 0x000055d99a29d7fc in ?? () No symbol table info available. #7 0x00007fc27f31c830 in __libc_start_main (main=0x55d99a29c110, argc=1, argv=0x7fffe26e32e8, init=, fini=, rtld_fini=, stack_end=0x7fffe26e32d8) at ../csu/libc-start.c:291 result = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -1956959118198426309, 94393082700112, 140736992260832, 0, 0, -5720824213584857797, -5701356948597623493}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x7fffe26e32f8, 0x7fc280968168}, data = {prev = 0x0, cleanup = 0x0, canceltype = -496094472}}} not_first_call = #8 0x000055d99a29e179 in ?? () No symbol table info available.