def test_imply_noloop(self):
with tests.Configure(self, __file__, "/example.smv"):
expr = ast.Imply(ast.Proposition("a"), ast.Proposition("b"))
self.assertEqual(
(ast.Proposition("a").semantic_no_loop(self.enc, 2, 3).imply(
ast.Proposition("b").semantic_no_loop(self.enc, 2, 3))),
expr.semantic_no_loop(self.enc, 2, 3))
expr = ast.Imply(ast.Globally(ast.Proposition("a")),
ast.Eventually(ast.Proposition("b")))
self.assertEqual(
(-ast.Globally(ast.Proposition("a")).semantic_no_loop(
self.enc, 2, 3)
| ast.Eventually(ast.Proposition("b")).semantic_no_loop(
self.enc, 2, 3)), expr.semantic_no_loop(self.enc, 2, 3))
def test_eventually_with_loop(self):
with tests.Configure(self, __file__, "/example.smv"):
i, k, l = 0, 2, 0
enc = self.enc
a = ast.Proposition("a")
formula = ast.Eventually(a)
tool = formula.semantic_with_loop(enc, i, k, l)
manual = a.semantic_with_loop(enc, i+1, k, l) |\
a.semantic_with_loop(enc, i , k, l)
nusmv = ltlspec.bounded_semantics(self.befsm,
Node.from_ptr(
parse_ltl_spec("F a")),
bound=k,
loop=l)
# normalized string representation of the BE's (make them comparable)
loop_cond = bmcutils.loop_condition(enc, k, l)
s_tool = tests.canonical_cnf(tool & loop_cond)
s_manual = tests.canonical_cnf(manual & loop_cond)
s_nusmv = tests.canonical_cnf(nusmv)
self.assertEqual(s_nusmv, s_tool)
self.assertEqual(s_manual, s_tool)
def test_xor_with_loop(self):
with tests.Configure(self, __file__, "/example.smv"):
expr = ast.Xor(ast.Proposition("a"), ast.Proposition("b"))
self.assertEqual(
(ast.Proposition("a").semantic_with_loop(self.enc, 2, 3, 1)
^ ast.Proposition("b").semantic_with_loop(self.enc, 2, 3, 1)),
expr.semantic_with_loop(self.enc, 2, 3, 1))
expr = ast.Xor(ast.Globally(ast.Proposition("a")),
ast.Eventually(ast.Proposition("b")))
self.assertEqual(
(ast.Globally(ast.Proposition("a")).semantic_with_loop(
self.enc, 2, 3, 1)
^ ast.Eventually(ast.Proposition("b")).semantic_with_loop(
self.enc, 2, 3, 1)),
expr.semantic_with_loop(self.enc, 2, 3, 1))
