#0  0x000000000040f942 in ?? ()
No symbol table info available.
#1  0x000000000040c0f1 in ?? ()
No symbol table info available.
#2  0x00000000004043b9 in ?? ()
No symbol table info available.
#3  0x0000000000405156 in ?? ()
No symbol table info available.
#4  0x00007f2713d8ad8d in __libc_start_main (main=<value optimized out>, 
    argc=<value optimized out>, ubp_av=<value optimized out>, 
    init=<value optimized out>, fini=<value optimized out>, 
    rtld_fini=<value optimized out>, stack_end=0x7fff05528ed8)
    at libc-start.c:226
	result = <value optimized out>
	unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 8722450496713882172, 
        4199136, 140733282684640, 0, 0, -8722817003935532484, 
        -8700258273512687044}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 
      0x417530, 0x7fff05528ee8}, data = {prev = 0x0, cleanup = 0x0, 
      canceltype = 4289840}}}
	not_first_call = <value optimized out>
#5  0x0000000000401309 in ?? ()
No symbol table info available.
#6  0x00007fff05528ed8 in ?? ()
No symbol table info available.
#7  0x000000000000001c in ?? ()
No symbol table info available.
#8  0x0000000000000002 in ?? ()
No symbol table info available.
#9  0x00007fff0552996a in ?? ()
No symbol table info available.
#10 0x00007fff05529972 in ?? ()
No symbol table info available.
#11 0x0000000000000000 in ?? ()
No symbol table info available.