def test_undefined_node(self):
varA = Symbol("At", INT)
dag_walker = DagWalker()
with self.assertRaises(UnsupportedOperatorError):
dag_walker.walk(varA)
tree_walker = TreeWalker()
with self.assertRaises(UnsupportedOperatorError):
tree_walker.walk(varA)
def test_undefined_node(self):
varA = Symbol("At", INT)
dag_walker = DagWalker()
with self.assertRaises(NotImplementedError):
dag_walker.walk(varA)
tree_walker = TreeWalker()
with self.assertRaises(NotImplementedError):
tree_walker.walk(varA)
"""
(set-logic QF_LIA)
(declare-const p Int)
(declare-const q Int)
(declare-const x Bool)
(declare-const z Bool)
(define-fun .def_1 () Bool (! (and x z) :cost 1))
(assert (=> x (> p q)))
(check-sat)
(push)
(assert (=> z (> q p)))
(check-sat)
(assert .def_1)
(check-sat)
(pop)
(check-sat)
"""
parser = SmtLibParser()
script = parser.get_script(cStringIO(DEMO_SMTLIB))
buf_out = cStringIO()
f = DagWalker()
for cmd in script:
if cmd.name != "define-fun":
continue
for args in cmd.args:
if isinstance(args, pysmt.fnode.FNode):
print(args)
print(f.iter_walk(args))
