def check_unreal( ltl_text, part_text, is_moore, ltl3ba: LTL3BA, solver_factory: Z3SolverFactory, min_size, max_size, ltl3ba_timeout_sec=None, opt_level=0, ) -> LTS: """ :raise: subprocess.TimeoutException :arg opt_level: Note that opt_level > 0 may introduce unsoundness (returns unrealizable while it is) """ timer = Timer() outputs, inputs, expr = parse_acacia_and_build_expr(ltl_text, part_text, ltl3ba, opt_level) timer.sec_restart() automaton = ltl3ba.convert(expr, timeout=ltl3ba_timeout_sec) # note no negation logging.info("(unreal) automaton size is: %i" % len(automaton.nodes)) logging.debug("(unreal) automaton (dot) is:\n" + automaton2dot.to_dot(automaton)) logging.debug("(unreal) automaton translation took (sec): %i" % timer.sec_restart()) encoder = create_encoder(inputs, outputs, not is_moore, automaton, solver_factory.create()) model = model_searcher.search(min_size, max_size, encoder) logging.debug("(unreal) model_searcher.search took (sec): %i" % timer.sec_restart()) return model
def check_real( ltl_text, part_text, is_moore, ltl3ba, solver_factory: Z3SolverFactory, min_size, max_size, opt_level=2 ) -> LTS: """ :param opt_level: values > 0 introduce incompleteness (but it is sound: if returns REAL, then REAL) """ timer = Timer() inputs, outputs, expr = parse_acacia_and_build_expr(ltl_text, part_text, ltl3ba, opt_level) timer.sec_restart() automaton = ltl3ba.convert(~expr) logging.info("(real) automaton size is: %i" % len(automaton.nodes)) logging.debug("(real) automaton (dot) is:\n" + automaton2dot.to_dot(automaton)) logging.debug("(real) automaton translation took (sec): %i" % timer.sec_restart()) encoder = create_encoder(inputs, outputs, is_moore, automaton, solver_factory.create()) model = model_searcher.search(min_size, max_size, encoder) logging.debug("(real) model_searcher.search took (sec): %i" % timer.sec_restart()) return model