Memory not freed:
-----------------
   Address     Size     Caller
0x081f8378     0x14  at studenti/AntonioFlammini/tests-AntonioFlammini.c:47
0x081f8390     0x14  at studenti/AntonioFlammini/tests-AntonioFlammini.c:48
0x081f83a8     0xc8  at studenti/AntonioFlammini/tests-AntonioFlammini.c:93
0x081f8478     0xc8  at studenti/AntonioFlammini/tests-AntonioFlammini.c:94
0x081f8548     0xc8  at studenti/AntonioFlammini/tests-AntonioFlammini.c:508
0x081f8618     0xc8  at studenti/AntonioFlammini/tests-AntonioFlammini.c:509