Invalid write of size 1
   ...
 Address 0x........ is 1 bytes inside a block of size 10 free'd
   at 0x........: free (vg_replace_malloc.c:...)
   ...
  block was alloc'd at
   at 0x........: malloc (vg_replace_malloc.c:...)
   ...

Invalid write of size 1
   ...
 Address 0x........ is 1 bytes before a block of size 10 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   ...

