16 bytes in 1 blocks are definitely lost in loss record ... of ...
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: mk (leak-cases.c:52)
   by 0x........: f (leak-cases.c:74)
   by 0x........: main (leak-cases.c:107)

32 (16 direct, 16 indirect) bytes in 1 blocks are definitely lost in loss record ... of ...
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: mk (leak-cases.c:52)
   by 0x........: f (leak-cases.c:76)
   by 0x........: main (leak-cases.c:107)

32 (16 direct, 16 indirect) bytes in 1 blocks are definitely lost in loss record ... of ...
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: mk (leak-cases.c:52)
   by 0x........: f (leak-cases.c:91)
   by 0x........: main (leak-cases.c:107)