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 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)