def test_basic2(self):
model_source = """\
(model
;; universe for U:
;; (as @val1 U) (as @val0 U)
(define-fun b () U
(as @val0 U))
(define-fun a () U
(as @val1 U))
(define-fun f ((x!0 U)) U
(ite (= x!0 (as @val1 U)) (as @val0 U)
(as @val1 U)))
)
"""
model_buf = StringIO(model_source)
parser = SmtLibParser()
simplifier = SmtLibModelValidationSimplifier(self.env)
U = self.tm.Type('U', 0)
# We construct the model even befor symbols are constructed in pysmt
model, interpretations = parser.parse_model(model_buf)
a = self.fm.Symbol('a', U)
b = self.fm.Symbol('b', U)
f = self.fm.Symbol('f', FunctionType(U, [U]))
formula = self.fm.And(self.fm.Not(self.fm.Equals(a, b)),
self.fm.Equals(self.fm.Function(f, [a]), b))
simp = simplifier.simplify(formula.substitute(model, interpretations))
self.assertEqual(simp, self.fm.TRUE())
