at 0x........: free (vg_replace_malloc.c:...)
by 0x........: main (fprw.c:22)
Address 0x........ is not stack'd, malloc'd or (recently) free'd
at 0x........: free (vg_replace_malloc.c:...)
by 0x........: main (fprw.c:22)
Address 0x........ is not stack'd, malloc'd or (recently) free'd