Memory not freed:
-----------------
   Address     Size     Caller
0x0846b388      0x1  at AndreaSterbini/modulo2.c:375
0x0846b3a0     0x21  at AndreaSterbini/modulo2.c:375
0x0846b3a8      0x6  at AndreaSterbini/modulo2.c:375
0x0846b3b8      0x6  at AndreaSterbini/modulo2.c:375
0x0846c708   0x1388  at studenti/MassimilianoNatale/tests-MassimilianoNatale.c:77
0x0846da98   0x1388  at studenti/MassimilianoNatale/tests-MassimilianoNatale.c:76
0x0846ee28   0x1388  at studenti/MassimilianoNatale/tests-MassimilianoNatale.c:77
0x084701b8   0x1388  at studenti/MassimilianoNatale/tests-MassimilianoNatale.c:76
0x08471548   0x1388  at studenti/MassimilianoNatale/tests-MassimilianoNatale.c:77