Trace 0: Transitions: 'returning' Return value: repr(): ConcreteValue(gcctype='struct PyObject *', loc=gcc.Location(file='tests/cpychecker/refcounts/not_setting_exception/input.c', line=32), value=0) str(): (struct PyObject *)0 from tests/cpychecker/refcounts/not_setting_exception/input.c:32 region for gcc.ParmDecl('self') on stack: repr(): RegionOnStack("region for gcc.ParmDecl('self')") str(): region for gcc.ParmDecl('self') on stack r->ob_refcnt: refs: 0 owned, 1 borrowed r->ob_type: PointerToRegion(gcctype='struct PyTypeObject *', loc=gcc.Location(file='tests/cpychecker/refcounts/not_setting_exception/input.c', line=26), region=Region("region-for-type-of-arg-gcc.ParmDecl('self')")) region for gcc.ParmDecl('args') on stack: repr(): RegionOnStack("region for gcc.ParmDecl('args')") str(): region for gcc.ParmDecl('args') on stack r->ob_refcnt: refs: 0 owned, 1 borrowed r->ob_type: PointerToRegion(gcctype='struct PyTypeObject *', loc=gcc.Location(file='tests/cpychecker/refcounts/not_setting_exception/input.c', line=26), region=Region("region-for-type-of-arg-gcc.ParmDecl('args')")) Exception: (struct PyObject *)0 from tests/cpychecker/refcounts/not_setting_exception/input.c:27