#0 0x000000000040ecb1 in free () #1 0x00000000004022b1 in ?? () #2 0x00007f6b4886b5a6 in __libc_start_main (main=0x401f7e , #3 0x0000000000401e19 in ?? () #4 0x00007fff51c890e8 in ?? () #5 0x000000000000001c in ?? () #6 0x0000000000000001 in ?? () #7 0x00007fff51c896f3 in ?? () #8 0x0000000000000000 in ?? ()