Trace 0:
  Transitions:
    'when PyString_FromString() succeeds'
    'when PyObject_GetItem() succeeds'
    'taking False path'
    'when taking True path'
    'returning'
  Return value:
    repr(): PointerToRegion(gcctype='struct PyObject *', loc=gcc.Location(file='tests/cpychecker/refcounts/handle_null_error/input.c', line=38), region=RegionOnHeap('new ref from call to PyObject_GetItem', gcc.Location(file='tests/cpychecker/refcounts/handle_null_error/input.c', line=38)))
    str(): (struct PyObject *)&RegionOnHeap('new ref from call to PyObject_GetItem', gcc.Location(file='tests/cpychecker/refcounts/handle_null_error/input.c', line=38)) from tests/cpychecker/refcounts/handle_null_error/input.c:38
    r->ob_refcnt: refs: 1 owned
    r->ob_type: PointerToRegion(gcctype='struct PyTypeObject *', loc=gcc.Location(file='tests/cpychecker/refcounts/handle_null_error/input.c', line=38), region=Region('PyTypeObject for new ref from call to PyObject_GetItem'))
  region for gcc.ParmDecl('mapping') on stack:
    repr(): RegionOnStack("region for gcc.ParmDecl('mapping')")
    str(): region for gcc.ParmDecl('mapping') on stack
    r->ob_refcnt: refs: 0 owned, 1 borrowed
    r->ob_type: PointerToRegion(gcctype='struct PyTypeObject *', loc=gcc.Location(file='tests/cpychecker/refcounts/handle_null_error/input.c', line=27), region=Region("region-for-type-of-arg-gcc.ParmDecl('mapping')"))
  PyStringObject allocated at tests/cpychecker/refcounts/handle_null_error/input.c:33:
    repr(): RegionOnHeap('PyStringObject', gcc.Location(file='tests/cpychecker/refcounts/handle_null_error/input.c', line=33))
    str(): PyStringObject allocated at tests/cpychecker/refcounts/handle_null_error/input.c:33
    r->ob_refcnt: refs: 0 owned
    r->ob_type: PointerToRegion(gcctype='struct PyTypeObject *', loc=gcc.Location(file='tests/cpychecker/refcounts/handle_null_error/input.c', line=33), region=RegionForGlobal(gcc.VarDecl('PyString_Type')))
  Exception:
    (struct PyObject *)0 from tests/cpychecker/refcounts/handle_null_error/input.c:28

Trace 1:
  Transitions:
    'when PyString_FromString() succeeds'
    'when PyObject_GetItem() succeeds'
    'taking False path'
    'when taking False path'
    'calling tp_dealloc on PyStringObject allocated at tests/cpychecker/refcounts/handle_null_error/input.c:33'
    'returning'
  Return value:
    repr(): PointerToRegion(gcctype='struct PyObject *', loc=gcc.Location(file='tests/cpychecker/refcounts/handle_null_error/input.c', line=38), region=RegionOnHeap('new ref from call to PyObject_GetItem', gcc.Location(file='tests/cpychecker/refcounts/handle_null_error/input.c', line=38)))
    str(): (struct PyObject *)&RegionOnHeap('new ref from call to PyObject_GetItem', gcc.Location(file='tests/cpychecker/refcounts/handle_null_error/input.c', line=38)) from tests/cpychecker/refcounts/handle_null_error/input.c:38
    r->ob_refcnt: refs: 1 owned
    r->ob_type: PointerToRegion(gcctype='struct PyTypeObject *', loc=gcc.Location(file='tests/cpychecker/refcounts/handle_null_error/input.c', line=38), region=Region('PyTypeObject for new ref from call to PyObject_GetItem'))
  region for gcc.ParmDecl('mapping') on stack:
    repr(): RegionOnStack("region for gcc.ParmDecl('mapping')")
    str(): region for gcc.ParmDecl('mapping') on stack
    r->ob_refcnt: refs: 0 owned, 1 borrowed
    r->ob_type: PointerToRegion(gcctype='struct PyTypeObject *', loc=gcc.Location(file='tests/cpychecker/refcounts/handle_null_error/input.c', line=27), region=Region("region-for-type-of-arg-gcc.ParmDecl('mapping')"))
  PyStringObject allocated at tests/cpychecker/refcounts/handle_null_error/input.c:33:
    repr(): RegionOnHeap('PyStringObject', gcc.Location(file='tests/cpychecker/refcounts/handle_null_error/input.c', line=33))
    str(): PyStringObject allocated at tests/cpychecker/refcounts/handle_null_error/input.c:33
    r->ob_refcnt: None
    r->ob_type: None
  Exception:
    (struct PyObject *)0 from tests/cpychecker/refcounts/handle_null_error/input.c:28

Trace 2:
  Transitions:
    'when PyString_FromString() succeeds'
    'when PyObject_GetItem() fails'
    'taking False path'
    'when taking True path'
    'returning'
  Return value:
    repr(): ConcreteValue(gcctype='struct PyObject *', loc=gcc.Location(file='tests/cpychecker/refcounts/handle_null_error/input.c', line=38), value=0)
    str(): (struct PyObject *)0 from tests/cpychecker/refcounts/handle_null_error/input.c:38
  region for gcc.ParmDecl('mapping') on stack:
    repr(): RegionOnStack("region for gcc.ParmDecl('mapping')")
    str(): region for gcc.ParmDecl('mapping') on stack
    r->ob_refcnt: refs: 0 owned, 1 borrowed
    r->ob_type: PointerToRegion(gcctype='struct PyTypeObject *', loc=gcc.Location(file='tests/cpychecker/refcounts/handle_null_error/input.c', line=27), region=Region("region-for-type-of-arg-gcc.ParmDecl('mapping')"))
  PyStringObject allocated at tests/cpychecker/refcounts/handle_null_error/input.c:33:
    repr(): RegionOnHeap('PyStringObject', gcc.Location(file='tests/cpychecker/refcounts/handle_null_error/input.c', line=33))
    str(): PyStringObject allocated at tests/cpychecker/refcounts/handle_null_error/input.c:33
    r->ob_refcnt: refs: 0 owned
    r->ob_type: PointerToRegion(gcctype='struct PyTypeObject *', loc=gcc.Location(file='tests/cpychecker/refcounts/handle_null_error/input.c', line=33), region=RegionForGlobal(gcc.VarDecl('PyString_Type')))
  Exception:
    (struct PyObject *)&RegionForGlobal(gcc.VarDecl('PyExc_MemoryError')) from tests/cpychecker/refcounts/handle_null_error/input.c:38

Trace 3:
  Transitions:
    'when PyString_FromString() succeeds'
    'when PyObject_GetItem() fails'
    'taking False path'
    'when taking False path'
    'calling tp_dealloc on PyStringObject allocated at tests/cpychecker/refcounts/handle_null_error/input.c:33'
    'returning'
  Return value:
    repr(): ConcreteValue(gcctype='struct PyObject *', loc=gcc.Location(file='tests/cpychecker/refcounts/handle_null_error/input.c', line=38), value=0)
    str(): (struct PyObject *)0 from tests/cpychecker/refcounts/handle_null_error/input.c:38
  region for gcc.ParmDecl('mapping') on stack:
    repr(): RegionOnStack("region for gcc.ParmDecl('mapping')")
    str(): region for gcc.ParmDecl('mapping') on stack
    r->ob_refcnt: refs: 0 owned, 1 borrowed
    r->ob_type: PointerToRegion(gcctype='struct PyTypeObject *', loc=gcc.Location(file='tests/cpychecker/refcounts/handle_null_error/input.c', line=27), region=Region("region-for-type-of-arg-gcc.ParmDecl('mapping')"))
  PyStringObject allocated at tests/cpychecker/refcounts/handle_null_error/input.c:33:
    repr(): RegionOnHeap('PyStringObject', gcc.Location(file='tests/cpychecker/refcounts/handle_null_error/input.c', line=33))
    str(): PyStringObject allocated at tests/cpychecker/refcounts/handle_null_error/input.c:33
    r->ob_refcnt: None
    r->ob_type: None
  Exception:
    (struct PyObject *)&RegionForGlobal(gcc.VarDecl('PyExc_MemoryError')) from tests/cpychecker/refcounts/handle_null_error/input.c:38

Trace 4:
  Transitions:
    'when PyString_FromString() fails'
    'when PyObject_GetItem fails due to NULL as argument 2 at tests/cpychecker/refcounts/handle_null_error/input.c:38'
    'taking True path'
    'returning'
  Return value:
    repr(): ConcreteValue(gcctype='struct PyObject *', loc=gcc.Location(file='tests/cpychecker/refcounts/handle_null_error/input.c', line=38), value=0)
    str(): (struct PyObject *)0 from tests/cpychecker/refcounts/handle_null_error/input.c:38
  region for gcc.ParmDecl('mapping') on stack:
    repr(): RegionOnStack("region for gcc.ParmDecl('mapping')")
    str(): region for gcc.ParmDecl('mapping') on stack
    r->ob_refcnt: refs: 0 owned, 1 borrowed
    r->ob_type: PointerToRegion(gcctype='struct PyTypeObject *', loc=gcc.Location(file='tests/cpychecker/refcounts/handle_null_error/input.c', line=27), region=Region("region-for-type-of-arg-gcc.ParmDecl('mapping')"))
  Exception:
    (struct PyObject *)&RegionForGlobal(gcc.VarDecl('PyExc_MemoryError')) from tests/cpychecker/refcounts/handle_null_error/input.c:33