#0  0x00007f9d6fd14e37 in __GI_raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
        resultvar = 0
        pid = 28971
        selftid = 28971
#1  0x0000000000402403 in ?? ()
No symbol table info available.
#2  0x00007f9d6fcffec5 in __libc_start_main (main=0x402350, argc=2, argv=0x7fff6dbba1b8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff6dbba1a8) at libc-start.c:287
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 2167605611864967497, 4203531, 140735034401200, 0, 0, -2167855783610758839, -2220769060702860983}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x419c50, 0x7fff6dbba1b8}, data = {prev = 0x0, cleanup = 0x0, canceltype = 4299856}}}
        not_first_call = <optimized out>
#3  0x0000000000402434 in ?? ()
No symbol table info available.