def __init__(self, environment, logic, options=None, debugFile=None):
Solver.__init__(self,
environment=environment,
logic=logic,
options=options)
self.config = mathsat.msat_create_default_config(str(logic))
check = mathsat.msat_set_option(self.config, "model_generation", "true")
assert check == 0
if debugFile is not None:
mathsat.msat_set_option(self.config, "debug.api_call_trace", "1")
mathsat.msat_set_option(self.config, "debug.api_call_trace_filename",
debugFile)
self.msat_env = mathsat.msat_create_env(self.config)
self.realType = mathsat.msat_get_rational_type(self.msat_env)
self.intType = mathsat.msat_get_integer_type(self.msat_env)
self.boolType = mathsat.msat_get_bool_type(self.msat_env)
self.mgr = environment.formula_manager
self.converter = MSatConverter(environment, self.msat_env)
return
def _prepare_config(self, options, debugFile=None):
"""Sets the relevant options in self.msat_config"""
if options.generate_models:
check = mathsat.msat_set_option(self.msat_config,
"model_generation", "true")
assert check == 0
if options.unsat_cores_mode is not None:
check = mathsat.msat_set_option(self.msat_config,
"unsat_core_generation", "1")
assert check == 0
if debugFile is not None:
mathsat.msat_set_option(self.msat_config, "debug.api_call_trace",
"1")
mathsat.msat_set_option(self.msat_config,
"debug.api_call_trace_filename", debugFile)
mathsat.msat_set_option(self.msat_config, "theory.bv.div_by_zero_mode",
"0")
def _prepare_config(self, options, debugFile=None):
"""Sets the relevant options in self.msat_config"""
if options.generate_models:
check = mathsat.msat_set_option(self.msat_config, "model_generation",
"true")
assert check == 0
if options.unsat_cores_mode is not None:
check = mathsat.msat_set_option(self.msat_config,
"unsat_core_generation",
"1")
assert check == 0
if debugFile is not None:
mathsat.msat_set_option(self.msat_config,
"debug.api_call_trace", "1")
mathsat.msat_set_option(self.msat_config,
"debug.api_call_trace_filename",
debugFile)
mathsat.msat_set_option(self.msat_config,
"theory.bv.div_by_zero_mode", "0")
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)
