.
Thread 1 (Thread 0x7f4cb66a52c0 (LWP 6211)):
#0  0x00005635641f751c in ?? ()
No symbol table info available.
#1  0x00005635641fa19c in ?? ()
No symbol table info available.
#2  0x00005635641f6ad8 in ?? ()
No symbol table info available.
#3  0x00007f4cb5a9c3f1 in __libc_start_main (main=0x5635641f6080, argc=3, argv=0x7ffef0c06668, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffef0c06658) at ../csu/libc-start.c:291
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -5566369137447573226, 94787313037824, 140732937561696, 0, 0, -2209189899658237674, -2291228648666076906}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x7ffef0c06688, 0x7f4cb66c2168}, data = {prev = 0x0, cleanup = 0x0, canceltype = -255826296}}}
        not_first_call = <optimized out>
#4  0x00005635641f7229 in ?? ()
No symbol table info available.