Memory not freed:
-----------------
   Address     Size     Caller
0x097923b0     0x32  at studenti/EnricoMontesi/tests-EnricoMontesi.c:12
0x097923e8     0x32  at studenti/EnricoMontesi/tests-EnricoMontesi.c:13
0x09792420     0x32  at studenti/EnricoMontesi/tests-EnricoMontesi.c:496
0x09792458     0x32  at studenti/EnricoMontesi/tests-EnricoMontesi.c:497