def test_instantiate_property_cutoff2(self): property = SpecProperty([Bool(True)], [parse_expr("Forall(j) b_j=1")]) result = inst_property(property, 2) expected = SpecProperty([Bool(True)], [parse_expr("b_0=1")]) result_data = _convert_conjunction_to_str(result) expected_data = _convert_conjunction_to_str(expected) self.assertEqual(expected_data, result_data)
def test_instantiate_property_cutoff_another_4(self): property = SpecProperty([Bool(True)], [parse_expr("Forall(j,k) b_j=1 -> c_k=1")]) result = inst_property(property, 4) expected = SpecProperty([Bool(True)], [parse_expr("(b_0=1 -> c_1=1) * (b_0=1 -> c_2=1) * (b_0=1 -> c_3=1)")]) result_data = _convert_conjunction_to_str(result) expected_data = _convert_conjunction_to_str(expected) self.assertEqual(expected_data, result_data)
def test_instantiate_property_cutoff4(self): property = SpecProperty([parse_expr("Forall (i) a_i = 1")], [parse_expr("Forall(j) b_j=1")]) result = inst_property(property, 4) expected = SpecProperty([parse_expr("a_0=1 * a_1=1 * a_2=1 * a_3=1")], [parse_expr("b_0=1")]) result_data = _convert_conjunction_to_str(result) expected_data = _convert_conjunction_to_str(expected) self.assertEqual(expected_data, result_data)
def test_instantiate_property_cutoff2(self): property = SpecProperty([Bool(True)], [parse_expr('Forall(j) b_j=1')]) result = inst_property(property, 2) expected = SpecProperty([Bool(True)], [parse_expr('b_0=1')]) result_data = _convert_conjunction_to_str(result) expected_data = _convert_conjunction_to_str(expected) self.assertEqual(expected_data, result_data)
def test_instantiate_property_cutoff4(self): property = SpecProperty([parse_expr('Forall (i) a_i = 1')], [parse_expr('Forall(j) b_j=1')]) result = inst_property(property, 4) expected = SpecProperty([parse_expr('a_0=1 * a_1=1 * a_2=1 * a_3=1')], [parse_expr('b_0=1')]) result_data = _convert_conjunction_to_str(result) expected_data = _convert_conjunction_to_str(expected) self.assertEqual(expected_data, result_data)
def test_instantiate_property_cutoff_another_4(self): property = SpecProperty([Bool(True)], [parse_expr('Forall(j,k) b_j=1 -> c_k=1')]) result = inst_property(property, 4) expected = SpecProperty([Bool(True)], [ parse_expr( '(b_0=1 -> c_1=1) * (b_0=1 -> c_2=1) * (b_0=1 -> c_3=1)') ]) result_data = _convert_conjunction_to_str(result) expected_data = _convert_conjunction_to_str(expected) self.assertEqual(expected_data, result_data)
def _get_automatae(assumptions, guarantees, optimization, cutoff, ltl2ucw_converter: Ltl2UCW, logger): #TODO: check which optimizations are used properties = [SpecProperty(assumptions, [g]) for g in guarantees] logger.info('original properties:\n%s\n', '\n'.join(map(str, properties))) archi = TokRingArchitecture() archi_properties = [ SpecProperty(assumptions, [g]) for g in archi.guarantees() ] logger.info('architecture properties:\n%s\n', '\n'.join(map(str, archi_properties))) if OPTS[optimization] >= OPTS[STRENGTH]: # we don't need this in case of async_hub since its assumptions implies GF(tok), put it is here for simplicity properties = [ SpecProperty(p.assumptions + archi.implications(), p.guarantees) for p in properties ] properties = properties + archi_properties scheduler = InterleavingScheduler() properties = [ SpecProperty(p.assumptions + scheduler.assumptions, p.guarantees) for p in properties ] logger.info('after updating with scheduling assumptions:\n%s\n', '\n'.join(map(str, properties))) #TODO: add support of using other options without using strengthening if OPTS[optimization] >= OPTS[STRENGTH]: logger.info('strengthening properties..') pseudo_safety_properties, pseudo_liveness_properties = strengthen_many( properties, ltl2ucw_converter) properties = pseudo_safety_properties + pseudo_liveness_properties logger.info( 'strengthening resulted in pseudo_safety_properties (a_s -> g_s):\n%s\n', '\n'.join(map(str, pseudo_safety_properties))) logger.info( '..and in pseudo_liveness_properties (a_s&a_l -> g_l):\n%s\n', '\n'.join(map(str, pseudo_liveness_properties))) if OPTS[optimization] >= OPTS[STRENGTH]: properties = [localize(p) for p in properties] logger.info('properties after localizing:\n%s\n', '\n'.join(map(str, properties))) prop_real_cutoff_pairs = [(p, archi.get_cutoff(p)) for p in properties] par_global_property_pairs = [(p, c) for (p, c) in prop_real_cutoff_pairs if c != 2] par_local_property_pairs = [(p, c) for (p, c) in prop_real_cutoff_pairs if c == 2] for (p, c) in par_local_property_pairs: assert p.assumptions == [Bool(True)] assert c == 2 if optimization == SYNC_HUB: # removing GF(sch) from one-indexed properties par_local_property_pairs = [(_replace_sched_by_true(p, scheduler), c) for (p, c) in par_local_property_pairs] if optimization == SYNC_HUB: pass # TODO: should add sync_hub assumptions -- but currently they are added on SMT (Impl) level if optimization == ASYNC_HUB: # by definition async_hub_assumptions are one-indexed async_hub_assumptions = archi.get_async_hub_assumptions() par_local_property_pairs = [ (localize(SpecProperty(async_hub_assumptions, p.guarantees)), c) for (p, c) in par_local_property_pairs ] inst_property_cutoff_pairs = [] for (p, c) in par_global_property_pairs + par_local_property_pairs: inst_c = min(c, cutoff) inst_p = inst_property(p, inst_c) opt_inst_p = apply_log_bit_scheduler_optimization( inst_p, scheduler, SCHED_ID_PREFIX, inst_c) inst_property_cutoff_pairs.append((opt_inst_p, c)) local_properties = [p for (p, c) in inst_property_cutoff_pairs if c == 2] global_property_cutoff_pairs = [(p, min(c, cutoff)) for (p, c) in inst_property_cutoff_pairs if p not in local_properties] logger.info('instantiated local properties:\n%s\n', local_properties) logger.info('instantiated global properties:\n%s\n', global_property_cutoff_pairs) local_automaton = None if len(local_properties) > 0: local_property = and_properties(local_properties) local_automaton = ltl2ucw_converter.convert( expr_from_property(local_property)) glob_automatae_pairs = [] if len(global_property_cutoff_pairs) > 0: glob_automatae_pairs = [ (ltl2ucw_converter.convert(expr_from_property(p)), c) for (p, c) in global_property_cutoff_pairs ] if OPTS[optimization] < OPTS[SYNC_HUB] and local_automaton: if optimization == ASYNC_HUB: glob_automatae_pairs += [(local_automaton, 1)] else: glob_automatae_pairs += [(local_automaton, 2)] sync_automaton = None if OPTS[optimization] >= OPTS[SYNC_HUB]: sync_automaton = local_automaton return sync_automaton, glob_automatae_pairs
def _get_automatae(assumptions, guarantees, optimization, cutoff, ltl2ucw_converter:Ltl2UCW, logger): #TODO: check which optimizations are used properties = [SpecProperty(assumptions, [g]) for g in guarantees] logger.info('original properties:\n%s\n', '\n'.join(map(str, properties))) archi = TokRingArchitecture() archi_properties = [SpecProperty(assumptions, [g]) for g in archi.guarantees()] logger.info('architecture properties:\n%s\n', '\n'.join(map(str, archi_properties))) if OPTS[optimization] >= OPTS[STRENGTH]: # we don't need this in case of async_hub since its assumptions implies GF(tok), put it is here for simplicity properties = [SpecProperty(p.assumptions + archi.implications(), p.guarantees) for p in properties] properties = properties + archi_properties scheduler = InterleavingScheduler() properties = [SpecProperty(p.assumptions + scheduler.assumptions, p.guarantees) for p in properties] logger.info('after updating with scheduling assumptions:\n%s\n', '\n'.join(map(str, properties))) #TODO: add support of using other options without using strengthening if OPTS[optimization] >= OPTS[STRENGTH]: logger.info('strengthening properties..') pseudo_safety_properties, pseudo_liveness_properties = strengthen_many(properties, ltl2ucw_converter) properties = pseudo_safety_properties + pseudo_liveness_properties logger.info('strengthening resulted in pseudo_safety_properties (a_s -> g_s):\n%s\n', '\n'.join(map(str, pseudo_safety_properties))) logger.info('..and in pseudo_liveness_properties (a_s&a_l -> g_l):\n%s\n', '\n'.join(map(str, pseudo_liveness_properties))) if OPTS[optimization] >= OPTS[STRENGTH]: properties = [localize(p) for p in properties] logger.info('properties after localizing:\n%s\n', '\n'.join(map(str, properties))) prop_real_cutoff_pairs = [(p, archi.get_cutoff(p)) for p in properties] par_global_property_pairs = [(p, c) for (p, c) in prop_real_cutoff_pairs if c != 2] par_local_property_pairs = [(p, c) for (p, c) in prop_real_cutoff_pairs if c == 2] for (p, c) in par_local_property_pairs: assert p.assumptions == [Bool(True)] assert c == 2 if optimization == SYNC_HUB: # removing GF(sch) from one-indexed properties par_local_property_pairs = [(_replace_sched_by_true(p, scheduler), c) for (p, c) in par_local_property_pairs] if optimization == SYNC_HUB: pass # TODO: should add sync_hub assumptions -- but currently they are added on SMT (Impl) level if optimization == ASYNC_HUB: # by definition async_hub_assumptions are one-indexed async_hub_assumptions = archi.get_async_hub_assumptions() par_local_property_pairs = [(localize(SpecProperty(async_hub_assumptions, p.guarantees)), c) for (p, c) in par_local_property_pairs] inst_property_cutoff_pairs = [] for (p, c) in par_global_property_pairs + par_local_property_pairs: inst_c = min(c, cutoff) inst_p = inst_property(p, inst_c) opt_inst_p = apply_log_bit_scheduler_optimization(inst_p, scheduler, SCHED_ID_PREFIX, inst_c) inst_property_cutoff_pairs.append((opt_inst_p, c)) local_properties = [p for (p, c) in inst_property_cutoff_pairs if c == 2] global_property_cutoff_pairs = [(p, min(c, cutoff)) for (p, c) in inst_property_cutoff_pairs if p not in local_properties] logger.info('instantiated local properties:\n%s\n', local_properties) logger.info('instantiated global properties:\n%s\n', global_property_cutoff_pairs) local_automaton = None if len(local_properties) > 0: local_property = and_properties(local_properties) local_automaton = ltl2ucw_converter.convert(expr_from_property(local_property)) glob_automatae_pairs = [] if len(global_property_cutoff_pairs) > 0: glob_automatae_pairs = [(ltl2ucw_converter.convert(expr_from_property(p)), c) for (p, c) in global_property_cutoff_pairs] if OPTS[optimization] < OPTS[SYNC_HUB] and local_automaton: if optimization == ASYNC_HUB: glob_automatae_pairs += [(local_automaton, 1)] else: glob_automatae_pairs += [(local_automaton, 2)] sync_automaton = None if OPTS[optimization] >= OPTS[SYNC_HUB]: sync_automaton = local_automaton return sync_automaton, glob_automatae_pairs