1Invalid free() / delete / delete[] / realloc()
2   at 0x........: free (vg_replace_malloc.c:...)
3   by 0x........: main (doublefree.c:10)
4 Address 0x........ is 0 bytes inside a block of size 177 free'd
5   at 0x........: free (vg_replace_malloc.c:...)
6   by 0x........: main (doublefree.c:10)
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