Trace 0:
  Transitions:
    'calling PyErr_SetString()'
    'calling PyErr_PrintEx()'
    'returning'
  Return value:
    repr(): ConcreteValue(gcctype='struct PyObject *', loc=gcc.Location(file='tests/cpychecker/refcounts/PyErr_PrintEx/input.c', line=37), value=0)
    str(): (struct PyObject *)0 from tests/cpychecker/refcounts/PyErr_PrintEx/input.c:37
  Exception:
    (struct PyObject *)0 from tests/cpychecker/refcounts/PyErr_PrintEx/input.c:34
