StacktraceTop: __libc_message (do_abort=do_abort@entry=1, fmt=fmt@entry=0x7f0ab66fba40 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/posix/libc_fatal.c:175 malloc_printerr (ptr=<optimized out>, str=0x7f0ab66fbc08 "double free or corruption (fasttop)", action=1) at malloc.c:4996 _int_free (av=<optimized out>, p=<optimized out>, have_lock=0) at malloc.c:3840 ?? () ?? ()
StacktraceTop: do_abort@ entry=1, fmt=fmt@ entry=0x7f0ab66 fba40 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/ posix/libc_ fatal.c: 175
__libc_message (do_abort=
malloc_printerr (ptr=<optimized out>, str=0x7f0ab66fbc08 "double free or corruption (fasttop)", action=1) at malloc.c:4996
_int_free (av=<optimized out>, p=<optimized out>, have_lock=0) at malloc.c:3840
?? ()
?? ()