StacktraceTop: ?? () __libc_start_main (main=0x400cd0, argc=6, ubp_av=0x7ffff578c9d8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffff578c9c8) at libc-start.c:260 ?? () ?? () ?? ()
StacktraceTop: 0x7ffff578c9d8, init=<optimized out>, fini=<optimized out>, rtld_fini= <optimized out>, stack_end= 0x7ffff578c9c8) at libc-start.c:260
?? ()
__libc_start_main (main=0x400cd0, argc=6, ubp_av=
?? ()
?? ()
?? ()