def problem2mc_config(self, problem, config):
mc_config = MCConfig()
config_selection = lambda problem, config: config if problem is None else problem
mc_config.smt2file = config_selection(problem.smt2_tracing,
config.smt2file)
mc_config.full_trace = problem.full_trace or config.full_trace
mc_config.trace_vars_change = problem.trace_vars_change or config.trace_vars_change
mc_config.trace_all_vars = problem.trace_all_vars or config.trace_all_vars
mc_config.prefix = problem.name
mc_config.strategy = config_selection(problem.strategy,
config.strategy)
mc_config.incremental = config_selection(problem.incremental,
config.incremental)
mc_config.skip_solving = config_selection(problem.skip_solving,
config.skip_solving)
mc_config.map_function = self.parser.remap_an2or
mc_config.solver_name = config_selection(problem.solver_name,
config.solver_name)
mc_config.vcd_trace = problem.vcd or config.vcd
mc_config.prove = config_selection(problem.prove, config.prove)
mc_config.properties = problem.formula
mc_config.assumptions = problem.assumptions
mc_config.lemmas = problem.lemmas
return mc_config
def run_verification(config):
reset_env()
Logger.verbosity = config.verbosity
coreir_parser = None
ets_parser = None
sts_parser = None
if config.ltl:
ltl_reset_env()
hts = HTS("Top level")
if config.strfiles[0][-4:] != ".pkl":
ps = ProblemSolver()
(hts, invar_props,
ltl_props) = ps.parse_model("./",
config.strfiles,
config.abstract_clock,
config.symbolic_init,
deterministic=config.deterministic,
boolean=config.boolean,
no_clock=config.no_clock)
config.parser = ps.parser
if config.pickle_file:
Logger.msg("Pickling model to %s\n" % (config.pickle_file), 1)
sys.setrecursionlimit(50000)
with open(config.pickle_file, "wb") as f:
pickle.dump(hts, f)
else:
if config.pickle_file:
raise RuntimeError("Don't need to re-pickle the input file %s" %
(config.strfile))
Logger.msg("Loading pickle file %s\n" % (config.strfile), 0)
with open(config.pickle_file, "rb") as f:
hts = pickle.load(f)
Logger.log("DONE", 0)
printsmv = True
mc_config = MCConfig()
sparser = StringParser()
sparser.remap_or2an = config.parser.remap_or2an
ltlparser = LTLParser()
# if equivalence checking wait to add assumptions to combined system
if config.assumptions is not None and config.equivalence is None:
Logger.log("Adding %d assumptions... " % len(config.assumptions), 1)
assumps = [t[1] for t in sparser.parse_formulae(config.assumptions)]
hts.assumptions = assumps
lemmas = None
if config.lemmas is not None:
Logger.log("Adding %d lemmas... " % len(config.lemmas), 1)
parsed_formulae = sparser.parse_formulae(config.lemmas)
if list(set([t[2] for t in parsed_formulae]))[0][0] != False:
Logger.error("Lemmas do not support \"next\" operators")
lemmas = [t[1] for t in parsed_formulae]
hts.lemmas = lemmas
mc_config.smt2file = config.smt2file
mc_config.full_trace = config.full_trace
mc_config.trace_vars_change = config.trace_vars_change
mc_config.trace_all_vars = config.trace_all_vars
mc_config.prefix = config.prefix
mc_config.strategy = config.strategy
mc_config.skip_solving = config.skip_solving
mc_config.map_function = config.parser.remap_an2or
mc_config.solver_name = config.solver_name
mc_config.vcd_trace = config.vcd
mc_config.prove = config.prove
mc_config.incremental = config.incremental
if config.ltl:
bmc_ltl = BMCLTL(hts, mc_config)
else:
bmc_safety = BMCSafety(hts, mc_config)
if config.translate:
Logger.log("Writing system to \"%s\"" % (config.translate), 0)
printer = PrintersFactory.printer_by_name(config.printer)
props = []
if config.ltl:
props += ltlparser.parse_formulae(config.properties)
props += [(str(p), p, None) for p in ltl_props]
else:
props += sparser.parse_formulae(config.properties)
props += [(str(p), p, None) for p in invar_props]
with open(config.translate, "w") as f:
f.write(printer.print_hts(hts, props))
if config.simulate:
count = 0
if config.properties is None:
props = [("True", TRUE(), None)]
else:
props = sparser.parse_formulae(config.properties)
for (strprop, prop, _) in props:
Logger.log("Simulation for property \"%s\":" % (strprop), 0)
res, trace = bmc_safety.simulate(prop, config.bmc_length)
if res == VerificationStatus.TRUE:
count += 1
print_trace("Execution", trace, count, config.prefix)
else:
Logger.log("No execution found", 0)
if config.safety:
count = 0
props = sparser.parse_formulae(config.properties)
props += [(str(p), p, None) for p in invar_props]
if len(props) == 0:
Logger.warning("Safety verification requires at least a property")
for (strprop, prop, _) in props:
Logger.log("Safety verification for property \"%s\":" % (strprop),
0)
res, trace, t = bmc_safety.safety(prop, config.bmc_length,
config.bmc_length_min)
Logger.log("\nProperty is %s" % res, 0)
if res == VerificationStatus.FALSE:
count += 1
print_trace("Counterexample", trace, count, config.prefix)
return 0
if config.equivalence or config.fsm_check:
if config.equivalence:
parser2 = CoreIRParser(config.abstract_clock, config.symbolic_init,
config.run_passes)
Logger.msg("Parsing file \"%s\"... " % (config.equivalence), 0)
hts2 = parser2.parse_file(config.equivalence)
Logger.log("DONE", 0)
symb = " (symbolic init)" if config.symbolic_init else ""
Logger.log(
"Equivalence checking%s with k=%s:" %
(symb, config.bmc_length), 0)
if Logger.level(1):
print(hts2.print_statistics("System 2", Logger.level(2)))
else:
hts2 = hts
# TODO: Make incremental solving optional
htseq, miter_out = Miter.combine_systems(hts, hts2, config.bmc_length,
config.symbolic_init,
config.properties, True)
if config.assumptions is not None:
Logger.log(
"Adding %d assumptions to combined system... " %
len(config.assumptions), 1)
assumps = [
t[1] for t in sparser.parse_formulae(config.assumptions)
]
htseq.assumptions = assumps
# create bmc object for combined system
bmcseq = BMC(htseq, mc_config)
res, trace, t = bmcseq.safety(miter_out, config.bmc_length,
config.bmc_length_min)
msg = "Systems are %s equivalent" if config.equivalence else "System is%s deterministic"
if res == VerificationStatus.FALSE:
Logger.log(msg % (" not"), 0)
print_trace("Counterexample", trace, 1, config.prefix)
elif res == VerificationStatus.UNK:
if config.symbolic_init:
# strong equivalence with symbolic initial state
Logger.log(msg % (""), 0)
else:
Logger.log(msg % ("") + " up to k=%i" % t, 0)
else:
Logger.log(msg % ("") + " up to k=%i" % t, 0)
if config.ltl:
count = 0
props = ltlparser.parse_formulae(config.properties)
props += [(str(p), p, None) for p in ltl_props]
if len(props) == 0:
Logger.warning("LTL verification requires at least a property")
for (strprop, prop, _) in props:
Logger.log("LTL verification for property \"%s\":" % (strprop), 0)
res, trace, t = bmc_ltl.ltl(prop, config.bmc_length,
config.bmc_length_min)
Logger.log("\nProperty is %s" % res, 0)
if res == VerificationStatus.FALSE:
count += 1
print_trace("Counterexample", trace, count, config.prefix)
return 0