Memory not freed:
-----------------
   Address     Size     Caller
0x091f5388      0x1  at ../tests-IvanoLapergola.c:602
0x091f5398      0x1  at ../tests-IvanoLapergola.c:603
0x091f6358      0x7  at 0x1c39f0
0x091f6380      0x7  at 0x1c39f0
0x091f6390     0x10  at ../../../AndreaSterbini/modulo3.c:80
0x091f63a8      0x7  at 0x1c39f0