def sequence_interpolant(self, formulas):
cfg, env = None, None
try:
self._check_logic(formulas)
if len(formulas) < 2:
raise Exception("interpolation needs at least 2 formulae")
cfg = mathsat.msat_create_config()
mathsat.msat_set_option(cfg, "interpolation", "true")
if self.logic == QF_BV:
mathsat.msat_set_option(cfg, "theory.bv.eager", "false")
mathsat.msat_set_option(cfg, "theory.eq_propagaion", "false")
env = mathsat.msat_create_env(cfg, self.msat_env)
groups = []
for f in formulas:
f = self.converter.convert(f)
g = mathsat.msat_create_itp_group(env)
mathsat.msat_set_itp_group(env, g)
groups.append(g)
mathsat.msat_assert_formula(env, f)
res = mathsat.msat_solve(env)
if res == mathsat.MSAT_UNKNOWN:
raise Exception("error in mathsat interpolation: %s" %
mathsat.msat_last_error_message(env))
if res == mathsat.MSAT_SAT:
return None
pysmt_ret = []
for i in xrange(1, len(groups)):
itp = mathsat.msat_get_interpolant(env, groups[:i])
f = self.converter.back(itp)
pysmt_ret.append(f)
return pysmt_ret
finally:
if cfg:
mathsat.msat_destroy_config(cfg)
if env:
mathsat.msat_destroy_env(env)
def sequence_interpolant(self, formulas):
cfg, env = None, None
try:
self._check_logic(formulas)
if len(formulas) < 2:
raise Exception("interpolation needs at least 2 formulae")
cfg = mathsat.msat_create_config()
mathsat.msat_set_option(cfg, "interpolation", "true")
if self.logic == QF_BV:
mathsat.msat_set_option(cfg, "theory.bv.eager", "false")
mathsat.msat_set_option(cfg, "theory.eq_propagaion", "false")
env = mathsat.msat_create_env(cfg, self.msat_env())
groups = []
for f in formulas:
f = self.converter.convert(f)
g = mathsat.msat_create_itp_group(env)
mathsat.msat_set_itp_group(env, g)
groups.append(g)
mathsat.msat_assert_formula(env, f)
res = mathsat.msat_solve(env)
if res == mathsat.MSAT_UNKNOWN:
raise Exception("error in mathsat interpolation: %s" %
mathsat.msat_last_error_message(env))
if res == mathsat.MSAT_SAT:
return None
pysmt_ret = []
for i in xrange(1, len(groups)):
itp = mathsat.msat_get_interpolant(env, groups[:i])
f = self.converter.back(itp)
pysmt_ret.append(f)
return pysmt_ret
finally:
if cfg:
mathsat.msat_destroy_config(cfg)
if env:
mathsat.msat_destroy_env(env)
def __del__(self):
mathsat.msat_destroy_env(self.msat_env)
def exit(self):
if not self._destroyed:
self._destroyed = True
mathsat.msat_destroy_env(self.msat_env)
mathsat.msat_destroy_config(self.msat_config)
def __del__(self):
mathsat.msat_destroy_env(self.msat_env)
def _exit(self):
mathsat.msat_destroy_env(self.msat_env)
mathsat.msat_destroy_config(self.msat_config)
def _exit(self):
mathsat.msat_destroy_env(self.msat_env)
def exit(self):
if not self._destroyed:
self._destroyed = True
mathsat.msat_destroy_env(self.msat_env)
mathsat.msat_destroy_config(self.msat_config)
