def test_get_strict_formula(self):
smtlib_single = """
(set-logic UF_LIRA)
(declare-fun x () Bool)
(declare-fun y () Bool)
(declare-fun r () Real)
(assert (> r 0.0))
(assert x)
(check-sat)
"""
smtlib_double = smtlib_single + """
(assert (not y))
(check-sat)
"""
r = Symbol("r", REAL)
x, y = Symbol("x"), Symbol("y")
target_one = And(GT(r, Real(0)), x)
target_two = And(GT(r, Real(0)), x, Not(y))
stream_in = cStringIO(smtlib_single)
f = get_formula(stream_in)
self.assertEqual(f, target_one)
stream_in = cStringIO(smtlib_double)
f = get_formula(stream_in)
self.assertEqual(f, target_two)
stream_in = cStringIO(smtlib_double)
with self.assertRaises(PysmtValueError):
f = get_formula_strict(stream_in)
def test_get_strict_formula(self):
smtlib_single = """
(set-logic UF_LIRA)
(declare-fun x () Bool)
(declare-fun y () Bool)
(declare-fun r () Real)
(assert (> r 0.0))
(assert x)
(check-sat)
"""
smtlib_double = smtlib_single + """
(assert (not y))
(check-sat)
"""
r = Symbol("r", REAL)
x, y = Symbol("x"), Symbol("y")
target_one = And(GT(r, Real(0)), x)
target_two = And(GT(r, Real(0)), x, Not(y))
stream_in = cStringIO(smtlib_single)
f = get_formula(stream_in)
self.assertEqual(f, target_one)
stream_in = cStringIO(smtlib_double)
f = get_formula(stream_in)
self.assertEqual(f, target_two)
stream_in = cStringIO(smtlib_double)
with self.assertRaises(PysmtValueError):
f = get_formula_strict(stream_in)
def test_yices_bv_no_overflow(self):
smt_script = '''
(set-logic QF_BV)
(declare-fun s0 () (_ BitVec 64))
(define-fun s1 () (_ BitVec 64) #x7FFFFFFFFFFFFFFF)
(define-fun s2 () Bool (= s1 s0))
(assert s2)
(check-sat)
'''
from pysmt.smtlib.parser import get_formula_strict
f = get_formula_strict(cStringIO(smt_script))
self.assertSat(f, solver_name='yices')