def exit_callback(retcode):
if solver_args[0] not in ["avy"]:
assert retcode == 0
assert task_status is not None
aiw_file.close()
job.update_status(task_status)
job.log("engine_%d: Status returned by engine: %s" % (engine_idx, task_status))
job.summary.append("engine_%d (%s) returned %s" % (engine_idx, " ".join(engine), task_status))
job.terminate()
if task_status == "FAIL" and job.opt_aigsmt != "none":
if produced_cex:
if mode == "live":
task2 = SbyTask(job, "engine_%d" % engine_idx, job.model("smt2"),
("cd %s; %s -g -s %s%s --noprogress --dump-vcd engine_%d/trace.vcd --dump-vlogtb engine_%d/trace_tb.v " +
"--dump-smtc engine_%d/trace.smtc --aig model/design_aiger.aim:engine_%d/trace.aiw model/design_smt2.smt2") %
(job.workdir, job.exe_paths["smtbmc"], job.opt_aigsmt,
"" if job.opt_tbtop is None else " --vlogtb-top %s" % job.opt_tbtop,
engine_idx, engine_idx, engine_idx, engine_idx),
logfile=open("%s/engine_%d/logfile2.txt" % (job.workdir, engine_idx), "w"))
else:
task2 = SbyTask(job, "engine_%d" % engine_idx, job.model("smt2"),
("cd %s; %s -s %s%s --noprogress --append %d --dump-vcd engine_%d/trace.vcd --dump-vlogtb engine_%d/trace_tb.v " +
"--dump-smtc engine_%d/trace.smtc --aig model/design_aiger.aim:engine_%d/trace.aiw model/design_smt2.smt2") %
(job.workdir, job.exe_paths["smtbmc"], job.opt_aigsmt,
"" if job.opt_tbtop is None else " --vlogtb-top %s" % job.opt_tbtop,
job.opt_append, engine_idx, engine_idx, engine_idx, engine_idx),
logfile=open("%s/engine_%d/logfile2.txt" % (job.workdir, engine_idx), "w"))
task2_status = None
def output_callback2(line):
nonlocal task2_status
match = re.match(r"^## [0-9: ]+ Status: FAILED", line)
if match: task2_status = "FAIL"
match = re.match(r"^## [0-9: ]+ Status: PASSED", line)
if match: task2_status = "PASS"
return line
def exit_callback2(line):
assert task2_status is not None
if mode == "live":
assert task2_status == "PASS"
else:
assert task2_status == "FAIL"
job.summary.append("counterexample trace: %s/engine_%d/trace.vcd" % (job.workdir, engine_idx))
task2.output_callback = output_callback2
task2.exit_callback = exit_callback2
else:
job.log("engine_%d: Engine did not produce a counter example." % engine_idx)
def exit_callback(retcode):
assert retcode == 0
assert task_status is not None
job.update_status(task_status)
job.log("engine_{}: Status returned by engine: {}".format(
engine_idx, task_status))
job.summary.append("engine_{} ({}) returned {}".format(
engine_idx, " ".join(engine), task_status))
job.terminate()
if task_status == "FAIL" and job.opt_aigsmt != "none":
task2 = SbyTask(
job,
"engine_{}".format(engine_idx),
job.model("smt2"),
("cd {}; {} -s {}{} --noprogress --append {} --dump-vcd engine_{i}/trace.vcd --dump-vlogtb engine_{i}/trace_tb.v "
+
"--dump-smtc engine_{i}/trace.smtc --aig model/design_aiger.aim:engine_{i}/trace.aiw --aig-noheader model/design_smt2.smt2"
).format(job.workdir,
job.exe_paths["smtbmc"],
job.opt_aigsmt,
"" if job.opt_tbtop is None else
" --vlogtb-top {}".format(job.opt_tbtop),
job.opt_append,
i=engine_idx),
logfile=open(
"{}/engine_{}/logfile2.txt".format(job.workdir,
engine_idx), "w"))
task2_status = None
def output_callback2(line):
nonlocal task2_status
match = re.match(r"^## [0-9: ]+ Status: FAILED", line)
if match: task2_status = "FAIL"
match = re.match(r"^## [0-9: ]+ Status: PASSED", line)
if match: task2_status = "PASS"
return line
def exit_callback2(line):
assert task2_status is not None
assert task2_status == "FAIL"
if os.path.exists("{}/engine_{}/trace.vcd".format(
job.workdir, engine_idx)):
job.summary.append(
"counterexample trace: {}/engine_{}/trace.vcd".format(
job.workdir, engine_idx))
task2.output_callback = output_callback2
task2.exit_callback = exit_callback2
def run(mode, job, engine_idx, engine):
smtbmc_opts = []
nomem_opt = False
presat_opt = True
unroll_opt = None
syn_opt = False
stbv_opt = False
stdt_opt = False
dumpsmt2 = False
progress = False
basecase_only = False
induction_only = False
opts, args = getopt.getopt(engine[1:], "", [
"nomem", "syn", "stbv", "stdt", "presat", "nopresat", "unroll",
"nounroll", "dumpsmt2", "progress", "basecase", "induction"
])
for o, a in opts:
if o == "--nomem":
nomem_opt = True
elif o == "--syn":
syn_opt = True
elif o == "--stbv":
stbv_opt = True
elif o == "--stdt":
stdt_opt = True
elif o == "--presat":
presat_opt = True
elif o == "--nopresat":
presat_opt = False
elif o == "--unroll":
unroll_opt = True
elif o == "--nounroll":
unroll_opt = False
elif o == "--dumpsmt2":
dumpsmt2 = True
elif o == "--progress":
progress = True
elif o == "--basecase":
if induction_only:
job.error(
"smtbmc options --basecase and --induction are exclusive.")
basecase_only = True
elif o == "--induction":
if basecase_only:
job.error(
"smtbmc options --basecase and --induction are exclusive.")
induction_only = True
else:
job.error("Invalid smtbmc options %s." % o)
for i, a in enumerate(args):
if i == 0 and a == "z3" and unroll_opt is None:
unroll_opt = False
smtbmc_opts += ["-s" if i == 0 else "-S", a]
if presat_opt:
smtbmc_opts += ["--presat"]
if unroll_opt is None or unroll_opt:
smtbmc_opts += ["--unroll"]
if job.opt_smtc is not None:
smtbmc_opts += ["--smtc", "src/%s" % job.opt_smtc]
if job.opt_tbtop is not None:
smtbmc_opts += ["--vlogtb-top", job.opt_tbtop]
model_name = "smt2"
if syn_opt: model_name += "_syn"
if nomem_opt: model_name += "_nomem"
if stbv_opt: model_name += "_stbv"
if stdt_opt: model_name += "_stdt"
if mode == "prove":
if not induction_only:
run("prove_basecase", job, engine_idx, engine)
if not basecase_only:
run("prove_induction", job, engine_idx, engine)
return
taskname = "engine_%d" % engine_idx
trace_prefix = "engine_%d/trace" % engine_idx
logfile_prefix = "%s/engine_%d/logfile" % (job.workdir, engine_idx)
if mode == "prove_basecase":
taskname += ".basecase"
logfile_prefix += "_basecase"
if mode == "prove_induction":
taskname += ".induction"
trace_prefix += "_induct"
logfile_prefix += "_induction"
smtbmc_opts.append("-i")
if mode == "cover":
smtbmc_opts.append("-c")
trace_prefix += "%"
if dumpsmt2:
smtbmc_opts += ["--dump-smt2", trace_prefix.replace("%", "") + ".smt2"]
if not progress:
smtbmc_opts.append("--noprogress")
task = SbyTask(
job,
taskname,
job.model(model_name),
"cd %s; %s %s -t %d --append %d --dump-vcd %s.vcd --dump-vlogtb %s_tb.v --dump-smtc %s.smtc model/design_%s.smt2"
% (job.workdir, job.exe_paths["smtbmc"], " ".join(smtbmc_opts),
job.opt_depth, job.opt_append, trace_prefix, trace_prefix,
trace_prefix, model_name),
logfile=open(logfile_prefix + ".txt", "w"),
logstderr=(not progress))
if mode == "prove_basecase":
job.basecase_tasks.append(task)
if mode == "prove_induction":
job.induction_tasks.append(task)
task_status = None
def output_callback(line):
nonlocal task_status
match = re.match(r"^## [0-9: ]+ Status: FAILED", line)
if match: task_status = "FAIL"
match = re.match(r"^## [0-9: ]+ Status: PASSED", line)
if match: task_status = "PASS"
return line
def exit_callback(retcode):
if task_status is None:
job.error("engine_%d: Engine terminated without status." %
engine_idx)
if mode == "bmc" or mode == "cover":
job.update_status(task_status)
job.log("engine_%d: Status returned by engine: %s" %
(engine_idx, task_status))
job.summary.append("engine_%d (%s) returned %s" %
(engine_idx, " ".join(engine), task_status))
if task_status == "FAIL" and mode != "cover":
job.summary.append(
"counterexample trace: %s/engine_%d/trace.vcd" %
(job.workdir, engine_idx))
job.terminate()
elif mode in ["prove_basecase", "prove_induction"]:
job.log("engine_%d: Status returned by engine for %s: %s" %
(engine_idx, mode.split("_")[1], task_status))
job.summary.append("engine_%d (%s) returned %s for %s" %
(engine_idx, " ".join(engine), task_status,
mode.split("_")[1]))
if mode == "prove_basecase":
for task in job.basecase_tasks:
task.terminate()
if task_status == "PASS":
job.basecase_pass = True
else:
job.update_status(task_status)
job.summary.append(
"counterexample trace: %s/engine_%d/trace.vcd" %
(job.workdir, engine_idx))
job.terminate()
elif mode == "prove_induction":
for task in job.induction_tasks:
task.terminate()
if task_status == "PASS":
job.induction_pass = True
else:
assert False
if job.basecase_pass and job.induction_pass:
job.update_status("PASS")
job.summary.append("successful proof by k-induction.")
job.terminate()
else:
assert False
task.output_callback = output_callback
task.exit_callback = exit_callback
def run(mode, job, engine_idx, engine):
opts, solver_args = getopt.getopt(engine[1:], "", [])
if len(solver_args) == 0:
job.error("Missing solver command.")
for o, a in opts:
job.error("Unexpected AIGER engine options.")
if solver_args[0] == "suprove":
if mode == "live" and (len(solver_args) == 1
or solver_args[1][0] != "+"):
solver_args.insert(1, "+simple_liveness")
solver_cmd = " ".join([job.exe_paths["suprove"]] + solver_args[1:])
elif solver_args[0] == "avy":
solver_cmd = " ".join([job.exe_paths["avy"], "--cex", "-"] +
solver_args[1:])
elif solver_args[0] == "aigbmc":
solver_cmd = " ".join([job.exe_paths["aigbmc"]] + solver_args[1:])
else:
job.error("Invalid solver command {}.".format(solver_args[0]))
task = SbyTask(
job,
"engine_{}".format(engine_idx),
job.model("aig"),
"cd {}; {} model/design_aiger.aig".format(job.workdir, solver_cmd),
logfile=open(
"{}/engine_{}/logfile.txt".format(job.workdir, engine_idx), "w"))
task_status = None
produced_cex = False
end_of_cex = False
aiw_file = open("{}/engine_{}/trace.aiw".format(job.workdir, engine_idx),
"w")
def output_callback(line):
nonlocal task_status
nonlocal produced_cex
nonlocal end_of_cex
if task_status is not None:
if not end_of_cex and not produced_cex and line.isdigit():
produced_cex = True
if not end_of_cex:
print(line, file=aiw_file)
if line == ".":
end_of_cex = True
return None
if line.startswith("u"):
return "No CEX up to depth {}.".format(int(line[1:]) - 1)
if line in ["0", "1", "2"]:
print(line, file=aiw_file)
if line == "0": task_status = "PASS"
if line == "1": task_status = "FAIL"
if line == "2": task_status = "UNKNOWN"
return None
def exit_callback(retcode):
if solver_args[0] not in ["avy"]:
assert retcode == 0
assert task_status is not None
aiw_file.close()
job.update_status(task_status)
job.log("engine_{}: Status returned by engine: {}".format(
engine_idx, task_status))
job.summary.append("engine_{} ({}) returned {}".format(
engine_idx, " ".join(engine), task_status))
job.terminate()
if task_status == "FAIL" and job.opt_aigsmt != "none":
if produced_cex:
if mode == "live":
task2 = SbyTask(
job,
"engine_{}".format(engine_idx),
job.model("smt2"),
("cd {}; {} -g -s {}{} --noprogress --dump-vcd engine_{i}/trace.vcd --dump-vlogtb engine_{i}/trace_tb.v "
+
"--dump-smtc engine_{i}/trace.smtc --aig model/design_aiger.aim:engine_{i}/trace.aiw model/design_smt2.smt2"
).format(job.workdir,
job.exe_paths["smtbmc"],
job.opt_aigsmt,
"" if job.opt_tbtop is None else
" --vlogtb-top {}".format(job.opt_tbtop),
i=engine_idx),
logfile=open(
"{}/engine_{}/logfile2.txt".format(
job.workdir, engine_idx), "w"))
else:
task2 = SbyTask(
job,
"engine_{}".format(engine_idx),
job.model("smt2"),
("cd {}; {} -s {}{} --noprogress --append {} --dump-vcd engine_{i}/trace.vcd --dump-vlogtb engine_{i}/trace_tb.v "
+
"--dump-smtc engine_{i}/trace.smtc --aig model/design_aiger.aim:engine_{i}/trace.aiw model/design_smt2.smt2"
).format(job.workdir,
job.exe_paths["smtbmc"],
job.opt_aigsmt,
"" if job.opt_tbtop is None else
" --vlogtb-top {}".format(job.opt_tbtop),
job.opt_append,
i=engine_idx),
logfile=open(
"{}/engine_{}/logfile2.txt".format(
job.workdir, engine_idx), "w"))
task2_status = None
def output_callback2(line):
nonlocal task2_status
match = re.match(r"^## [0-9: ]+ Status: FAILED", line)
if match: task2_status = "FAIL"
match = re.match(r"^## [0-9: ]+ Status: PASSED", line)
if match: task2_status = "PASS"
return line
def exit_callback2(line):
assert task2_status is not None
if mode == "live":
assert task2_status == "PASS"
else:
assert task2_status == "FAIL"
if os.path.exists("{}/engine_{}/trace.vcd".format(
job.workdir, engine_idx)):
job.summary.append(
"counterexample trace: {}/engine_{}/trace.vcd".
format(job.workdir, engine_idx))
task2.output_callback = output_callback2
task2.exit_callback = exit_callback2
else:
job.log("engine_{}: Engine did not produce a counter example.".
format(engine_idx))
task.output_callback = output_callback
task.exit_callback = exit_callback
def run(mode, job, engine_idx, engine):
opts, solver_args = getopt.getopt(engine[1:], "", [])
if len(solver_args) == 0:
job.error("Missing solver command.")
for o, a in opts:
job.error("Unexpected BTOR engine options.")
if solver_args[0] == "btormc":
solver_cmd = job.exe_paths[
"btormc"] + " --stop-first {} -v 1 -kmax {}".format(
0 if mode == "cover" else 1, job.opt_depth - 1)
if job.opt_skip is not None:
solver_cmd += " -kmin {}".format(job.opt_skip)
solver_cmd += " ".join([""] + solver_args[1:])
elif solver_args[0] == "cosa2":
solver_cmd = job.exe_paths["cosa2"] + " -v 1 -e bmc -k {}".format(
job.opt_depth - 1)
else:
job.error("Invalid solver command {}.".format(solver_args[0]))
common_state = SimpleNamespace()
common_state.solver_status = None
common_state.produced_cex = 0
common_state.expected_cex = 1
common_state.wit_file = None
common_state.assert_fail = False
common_state.produced_traces = []
common_state.print_traces_max = 5
common_state.running_tasks = 0
def print_traces_and_terminate():
if mode == "cover":
if common_state.assert_fail:
task_status = "FAIL"
elif common_state.expected_cex == 0:
task_status = "pass"
elif common_state.solver_status == "sat":
task_status = "pass"
elif common_state.solver_status == "unsat":
task_status = "FAIL"
else:
job.error(
"engine_{}: Engine terminated without status.".format(
engine_idx))
else:
if common_state.expected_cex == 0:
task_status = "pass"
elif common_state.solver_status == "sat":
task_status = "FAIL"
elif common_state.solver_status == "unsat":
task_status = "pass"
else:
job.error(
"engine_{}: Engine terminated without status.".format(
engine_idx))
job.update_status(task_status.upper())
job.log("engine_{}: Status returned by engine: {}".format(
engine_idx, task_status))
job.summary.append("engine_{} ({}) returned {}".format(
engine_idx, " ".join(engine), task_status))
if len(common_state.produced_traces) == 0:
job.log("engine_{}: Engine did not produce a{}example.".format(
engine_idx, " counter" if mode != "cover" else "n "))
elif len(
common_state.produced_traces) <= common_state.print_traces_max:
job.summary.extend(common_state.produced_traces)
else:
job.summary.extend(
common_state.produced_traces[:common_state.print_traces_max])
excess_traces = len(
common_state.produced_traces) - common_state.print_traces_max
job.summary.append("and {} further trace{}".format(
excess_traces, "s" if excess_traces > 1 else ""))
job.terminate()
if mode == "cover":
def output_callback2(line):
match = re.search(r"Assert failed in test", line)
if match:
common_state.assert_fail = True
return line
else:
def output_callback2(line):
return line
def make_exit_callback(suffix):
def exit_callback2(retcode):
assert retcode == 0
vcdpath = "{}/engine_{}/trace{}.vcd".format(
job.workdir, engine_idx, suffix)
if os.path.exists(vcdpath):
common_state.produced_traces.append("{}trace: {}".format(
"" if mode == "cover" else "counterexample ", vcdpath))
common_state.running_tasks -= 1
if (common_state.running_tasks == 0):
print_traces_and_terminate()
return exit_callback2
def output_callback(line):
if mode == "cover":
if solver_args[0] == "btormc":
match = re.search(r"calling BMC on ([0-9]+) properties", line)
if match:
common_state.expected_cex = int(match[1])
assert common_state.produced_cex == 0
else:
job.error(
"engine_{}: BTOR solver '{}' is currently not supported in cover mode."
.format(solver_args[0]))
if (common_state.produced_cex <
common_state.expected_cex) and line == "sat":
assert common_state.wit_file == None
if common_state.expected_cex == 1:
common_state.wit_file = open(
"{}/engine_{}/trace.wit".format(job.workdir, engine_idx),
"w")
else:
common_state.wit_file = open(
"{}/engine_{}/trace{}.wit".format(
job.workdir, engine_idx, common_state.produced_cex),
"w")
if solver_args[0] != "btormc":
task.log("Found satisfiability witness.")
if common_state.wit_file:
print(line, file=common_state.wit_file)
if line == ".":
if common_state.expected_cex == 1:
suffix = ""
else:
suffix = common_state.produced_cex
task2 = SbyTask(
job,
"engine_{}_{}".format(engine_idx,
common_state.produced_cex),
job.model("btor"),
"cd {dir} ; btorsim -c --vcd engine_{idx}/trace{i}.vcd --hierarchical-symbols --info model/design_btor.info model/design_btor.btor engine_{idx}/trace{i}.wit"
.format(dir=job.workdir, idx=engine_idx, i=suffix),
logfile=open(
"{dir}/engine_{idx}/logfile2.txt".format(
dir=job.workdir, idx=engine_idx), "w"))
task2.output_callback = output_callback2
task2.exit_callback = make_exit_callback(suffix)
task2.checkretcode = True
common_state.running_tasks += 1
common_state.produced_cex += 1
common_state.wit_file.close()
common_state.wit_file = None
if common_state.produced_cex == common_state.expected_cex:
common_state.solver_status = "sat"
else:
if solver_args[0] == "btormc":
if "calling BMC on" in line:
return line
if "SATISFIABLE" in line:
return line
if "bad state properties at bound" in line:
return line
if "deleting model checker:" in line:
if common_state.solver_status is None:
common_state.solver_status = "unsat"
return line
elif solver_args[0] == "cosa2":
if line == "unknown":
if common_state.solver_status is None:
common_state.solver_status = "unsat"
return "No CEX found."
if line not in ["b0"]:
return line
print(line, file=task.logfile)
return None
def exit_callback(retcode):
if solver_args[0] == "cosa2":
assert retcode in [1, 2]
else:
assert retcode == 0
if common_state.expected_cex != 0:
assert common_state.solver_status is not None
if common_state.solver_status == "unsat":
if common_state.expected_cex == 1:
with open(
"{}/engine_{}/trace.wit".format(
job.workdir, engine_idx), "w") as wit_file:
print("unsat", file=wit_file)
else:
for i in range(common_state.produced_cex,
common_state.expected_cex):
with open(
"{}/engine_{}/trace{}.wit".format(
job.workdir, engine_idx, i), "w") as wit_file:
print("unsat", file=wit_file)
common_state.running_tasks -= 1
if (common_state.running_tasks == 0):
print_traces_and_terminate()
task = SbyTask(
job,
"engine_{}".format(engine_idx),
job.model("btor"),
"cd {}; {} model/design_btor.btor".format(job.workdir, solver_cmd),
logfile=open(
"{}/engine_{}/logfile.txt".format(job.workdir, engine_idx), "w"))
task.output_callback = output_callback
task.exit_callback = exit_callback
common_state.running_tasks += 1
def output_callback(line):
if mode == "cover":
if solver_args[0] == "btormc":
match = re.search(r"calling BMC on ([0-9]+) properties", line)
if match:
common_state.expected_cex = int(match[1])
assert common_state.produced_cex == 0
else:
job.error(
"engine_{}: BTOR solver '{}' is currently not supported in cover mode."
.format(solver_args[0]))
if (common_state.produced_cex <
common_state.expected_cex) and line == "sat":
assert common_state.wit_file == None
if common_state.expected_cex == 1:
common_state.wit_file = open(
"{}/engine_{}/trace.wit".format(job.workdir, engine_idx),
"w")
else:
common_state.wit_file = open(
"{}/engine_{}/trace{}.wit".format(
job.workdir, engine_idx, common_state.produced_cex),
"w")
if solver_args[0] != "btormc":
task.log("Found satisfiability witness.")
if common_state.wit_file:
print(line, file=common_state.wit_file)
if line == ".":
if common_state.expected_cex == 1:
suffix = ""
else:
suffix = common_state.produced_cex
task2 = SbyTask(
job,
"engine_{}_{}".format(engine_idx,
common_state.produced_cex),
job.model("btor"),
"cd {dir} ; btorsim -c --vcd engine_{idx}/trace{i}.vcd --hierarchical-symbols --info model/design_btor.info model/design_btor.btor engine_{idx}/trace{i}.wit"
.format(dir=job.workdir, idx=engine_idx, i=suffix),
logfile=open(
"{dir}/engine_{idx}/logfile2.txt".format(
dir=job.workdir, idx=engine_idx), "w"))
task2.output_callback = output_callback2
task2.exit_callback = make_exit_callback(suffix)
task2.checkretcode = True
common_state.running_tasks += 1
common_state.produced_cex += 1
common_state.wit_file.close()
common_state.wit_file = None
if common_state.produced_cex == common_state.expected_cex:
common_state.solver_status = "sat"
else:
if solver_args[0] == "btormc":
if "calling BMC on" in line:
return line
if "SATISFIABLE" in line:
return line
if "bad state properties at bound" in line:
return line
if "deleting model checker:" in line:
if common_state.solver_status is None:
common_state.solver_status = "unsat"
return line
elif solver_args[0] == "cosa2":
if line == "unknown":
if common_state.solver_status is None:
common_state.solver_status = "unsat"
return "No CEX found."
if line not in ["b0"]:
return line
print(line, file=task.logfile)
return None
def run(mode, job, engine_idx, engine):
random_seed = None
opts, solver_args = getopt.getopt(engine[1:], "", ["seed="])
if len(solver_args) == 0:
job.error("Missing solver command.")
for o, a in opts:
if o == "--seed":
random_seed = a
else:
job.error("Unexpected BTOR engine options.")
if solver_args[0] == "btormc":
solver_cmd = ""
if random_seed:
solver_cmd += f"BTORSEED={random_seed} "
solver_cmd += job.exe_paths[
"btormc"] + f""" --stop-first {0 if mode == "cover" else 1} -v 1 -kmax {job.opt_depth - 1}"""
if job.opt_skip is not None:
solver_cmd += f" -kmin {job.opt_skip}"
solver_cmd += " ".join([""] + solver_args[1:])
elif solver_args[0] == "pono":
if random_seed:
job.error(
"Setting the random seed is not available for the pono solver."
)
solver_cmd = job.exe_paths[
"pono"] + f" -v 1 -e bmc -k {job.opt_depth - 1}"
else:
job.error(f"Invalid solver command {solver_args[0]}.")
common_state = SimpleNamespace()
common_state.solver_status = None
common_state.produced_cex = 0
common_state.expected_cex = 1
common_state.wit_file = None
common_state.assert_fail = False
common_state.produced_traces = []
common_state.print_traces_max = 5
common_state.running_tasks = 0
def print_traces_and_terminate():
if mode == "cover":
if common_state.assert_fail:
task_status = "FAIL"
elif common_state.expected_cex == 0:
task_status = "pass"
elif common_state.solver_status == "sat":
task_status = "pass"
elif common_state.solver_status == "unsat":
task_status = "FAIL"
else:
job.error(
f"engine_{engine_idx}: Engine terminated without status.")
else:
if common_state.expected_cex == 0:
task_status = "pass"
elif common_state.solver_status == "sat":
task_status = "FAIL"
elif common_state.solver_status == "unsat":
task_status = "pass"
else:
job.error(
f"engine_{engine_idx}: Engine terminated without status.")
job.update_status(task_status.upper())
job.log(
f"engine_{engine_idx}: Status returned by engine: {task_status}")
job.summary.append(
f"""engine_{engine_idx} ({" ".join(engine)}) returned {task_status}"""
)
if len(common_state.produced_traces) == 0:
job.log(
f"""engine_{engine_idx}: Engine did not produce a{" counter" if mode != "cover" else "n "}example."""
)
elif len(
common_state.produced_traces) <= common_state.print_traces_max:
job.summary.extend(common_state.produced_traces)
else:
job.summary.extend(
common_state.produced_traces[:common_state.print_traces_max])
excess_traces = len(
common_state.produced_traces) - common_state.print_traces_max
job.summary.append(
f"""and {excess_traces} further trace{"s" if excess_traces > 1 else ""}"""
)
job.terminate()
if mode == "cover":
def output_callback2(line):
match = re.search(r"Assert failed in test", line)
if match:
common_state.assert_fail = True
return line
else:
def output_callback2(line):
return line
def make_exit_callback(suffix):
def exit_callback2(retcode):
assert retcode == 0
vcdpath = f"{job.workdir}/engine_{engine_idx}/trace{suffix}.vcd"
if os.path.exists(vcdpath):
common_state.produced_traces.append(
f"""{"" if mode == "cover" else "counterexample "}trace: {vcdpath}"""
)
common_state.running_tasks -= 1
if (common_state.running_tasks == 0):
print_traces_and_terminate()
return exit_callback2
def output_callback(line):
if mode == "cover":
if solver_args[0] == "btormc":
match = re.search(r"calling BMC on ([0-9]+) properties", line)
if match:
common_state.expected_cex = int(match[1])
assert common_state.produced_cex == 0
else:
job.error(
f"engine_{engine_idx}: BTOR solver '{solver_args[0]}' is currently not supported in cover mode."
)
if (common_state.produced_cex <
common_state.expected_cex) and line == "sat":
assert common_state.wit_file == None
if common_state.expected_cex == 1:
common_state.wit_file = open(
f"{job.workdir}/engine_{engine_idx}/trace.wit", "w")
else:
common_state.wit_file = open(
f"""{job.workdir}/engine_{engine_idx}/trace{common_state.produced_cex}.wit""",
"w")
if solver_args[0] != "btormc":
task.log("Found satisfiability witness.")
if common_state.wit_file:
print(line, file=common_state.wit_file)
if line == ".":
if common_state.expected_cex == 1:
suffix = ""
else:
suffix = common_state.produced_cex
task2 = SbyTask(
job,
f"engine_{engine_idx}_{common_state.produced_cex}",
job.model("btor"),
"cd {dir} ; btorsim -c --vcd engine_{idx}/trace{i}.vcd --hierarchical-symbols --info model/design_btor.info model/design_btor.btor engine_{idx}/trace{i}.wit"
.format(dir=job.workdir, idx=engine_idx, i=suffix),
logfile=open(
f"{job.workdir}/engine_{engine_idx}/logfile2.txt",
"w"))
task2.output_callback = output_callback2
task2.exit_callback = make_exit_callback(suffix)
task2.checkretcode = True
common_state.running_tasks += 1
common_state.produced_cex += 1
common_state.wit_file.close()
common_state.wit_file = None
if common_state.produced_cex == common_state.expected_cex:
common_state.solver_status = "sat"
else:
if solver_args[0] == "btormc":
if "calling BMC on" in line:
return line
if "SATISFIABLE" in line:
return line
if "bad state properties at bound" in line:
return line
if "deleting model checker:" in line:
if common_state.solver_status is None:
common_state.solver_status = "unsat"
return line
elif solver_args[0] == "pono":
if line == "unknown":
if common_state.solver_status is None:
common_state.solver_status = "unsat"
return "No CEX found."
if line not in ["b0"]:
return line
print(line, file=task.logfile)
return None
def exit_callback(retcode):
if solver_args[0] == "pono":
assert retcode in [
0, 1, 255
] # UNKNOWN = -1, FALSE = 0, TRUE = 1, ERROR = 2
else:
assert retcode == 0
if common_state.expected_cex != 0:
assert common_state.solver_status is not None
if common_state.solver_status == "unsat":
if common_state.expected_cex == 1:
with open(f"""{job.workdir}/engine_{engine_idx}/trace.wit""",
"w") as wit_file:
print("unsat", file=wit_file)
else:
for i in range(common_state.produced_cex,
common_state.expected_cex):
with open(
f"{job.workdir}/engine_{engine_idx}/trace{i}.wit",
"w") as wit_file:
print("unsat", file=wit_file)
common_state.running_tasks -= 1
if (common_state.running_tasks == 0):
print_traces_and_terminate()
task = SbyTask(job,
f"engine_{engine_idx}",
job.model("btor"),
f"cd {job.workdir}; {solver_cmd} model/design_btor.btor",
logfile=open(
f"{job.workdir}/engine_{engine_idx}/logfile.txt", "w"))
task.output_callback = output_callback
task.exit_callback = exit_callback
common_state.running_tasks += 1
def run(mode, job, engine_idx, engine):
smtbmc_opts = []
nomem_opt = False
presat_opt = True
unroll_opt = None
syn_opt = False
stbv_opt = False
stdt_opt = False
dumpsmt2 = False
progress = False
basecase_only = False
induction_only = False
random_seed = None
opts, args = getopt.getopt(engine[1:], "", [
"nomem", "syn", "stbv", "stdt", "presat", "nopresat", "unroll",
"nounroll", "dumpsmt2", "progress", "basecase", "induction", "seed="
])
for o, a in opts:
if o == "--nomem":
nomem_opt = True
elif o == "--syn":
syn_opt = True
elif o == "--stbv":
stbv_opt = True
elif o == "--stdt":
stdt_opt = True
elif o == "--presat":
presat_opt = True
elif o == "--nopresat":
presat_opt = False
elif o == "--unroll":
unroll_opt = True
elif o == "--nounroll":
unroll_opt = False
elif o == "--dumpsmt2":
dumpsmt2 = True
elif o == "--progress":
progress = True
elif o == "--basecase":
if induction_only:
job.error(
"smtbmc options --basecase and --induction are exclusive.")
basecase_only = True
elif o == "--induction":
if basecase_only:
job.error(
"smtbmc options --basecase and --induction are exclusive.")
induction_only = True
elif o == "--seed":
random_seed = a
else:
job.error(f"Invalid smtbmc options {o}.")
xtra_opts = False
for i, a in enumerate(args):
if i == 0 and a == "z3" and unroll_opt is None:
unroll_opt = False
if a == "--":
xtra_opts = True
continue
if xtra_opts:
smtbmc_opts.append(a)
else:
smtbmc_opts += ["-s" if i == 0 else "-S", a]
if presat_opt:
smtbmc_opts += ["--presat"]
if unroll_opt is None or unroll_opt:
smtbmc_opts += ["--unroll"]
if job.opt_smtc is not None:
smtbmc_opts += ["--smtc", f"src/{job.opt_smtc}"]
if job.opt_tbtop is not None:
smtbmc_opts += ["--vlogtb-top", job.opt_tbtop]
model_name = "smt2"
if syn_opt: model_name += "_syn"
if nomem_opt: model_name += "_nomem"
if stbv_opt: model_name += "_stbv"
if stdt_opt: model_name += "_stdt"
if mode == "prove":
if not induction_only:
run("prove_basecase", job, engine_idx, engine)
if not basecase_only:
run("prove_induction", job, engine_idx, engine)
return
taskname = f"engine_{engine_idx}"
trace_prefix = f"engine_{engine_idx}/trace"
logfile_prefix = f"{job.workdir}/engine_{engine_idx}/logfile"
if mode == "prove_basecase":
taskname += ".basecase"
logfile_prefix += "_basecase"
if mode == "prove_induction":
taskname += ".induction"
trace_prefix += "_induct"
logfile_prefix += "_induction"
smtbmc_opts.append("-i")
if mode == "cover":
smtbmc_opts.append("-c")
trace_prefix += "%"
if dumpsmt2:
smtbmc_opts += ["--dump-smt2", trace_prefix.replace("%", "") + ".smt2"]
if not progress:
smtbmc_opts.append("--noprogress")
if job.opt_skip is not None:
t_opt = "{}:{}".format(job.opt_skip, job.opt_depth)
else:
t_opt = "{}".format(job.opt_depth)
random_seed = f"--info \"(set-option :random-seed {random_seed})\"" if random_seed else ""
task = SbyTask(
job,
taskname,
job.model(model_name),
f"""cd {job.workdir}; {job.exe_paths["smtbmc"]} {" ".join(smtbmc_opts)} -t {t_opt} {random_seed} --append {job.opt_append} --dump-vcd {trace_prefix}.vcd --dump-vlogtb {trace_prefix}_tb.v --dump-smtc {trace_prefix}.smtc model/design_{model_name}.smt2""",
logfile=open(logfile_prefix + ".txt", "w"),
logstderr=(not progress))
if mode == "prove_basecase":
job.basecase_tasks.append(task)
if mode == "prove_induction":
job.induction_tasks.append(task)
task_status = None
def output_callback(line):
nonlocal task_status
match = re.match(r"^## [0-9: ]+ Status: FAILED", line)
if match:
task_status = "FAIL"
return line.replace("FAILED", "failed")
match = re.match(r"^## [0-9: ]+ Status: PASSED", line)
if match:
task_status = "PASS"
return line.replace("PASSED", "passed")
match = re.match(r"^## [0-9: ]+ Status: PREUNSAT", line)
if match:
task_status = "ERROR"
return line
match = re.match(r"^## [0-9: ]+ Unexpected response from solver:",
line)
if match:
task_status = "ERROR"
return line
return line
def exit_callback(retcode):
if task_status is None:
job.error(
f"engine_{engine_idx}: Engine terminated without status.")
if mode == "bmc" or mode == "cover":
job.update_status(task_status)
task_status_lower = task_status.lower(
) if task_status == "PASS" else task_status
job.log(
f"engine_{engine_idx}: Status returned by engine: {task_status_lower}"
)
job.summary.append(
f"""engine_{engine_idx} ({" ".join(engine)}) returned {task_status_lower}"""
)
if task_status == "FAIL" and mode != "cover":
if os.path.exists(
f"{job.workdir}/engine_{engine_idx}/trace.vcd"):
job.summary.append(
f"counterexample trace: {job.workdir}/engine_{engine_idx}/trace.vcd"
)
elif task_status == "PASS" and mode == "cover":
print_traces_max = 5
for i in range(print_traces_max):
if os.path.exists(
f"{job.workdir}/engine_{engine_idx}/trace{i}.vcd"):
job.summary.append(
f"trace: {job.workdir}/engine_{engine_idx}/trace{i}.vcd"
)
else:
break
else:
excess_traces = 0
while os.path.exists(
f"{job.workdir}/engine_{engine_idx}/trace{print_traces_max + excess_traces}.vcd"
):
excess_traces += 1
if excess_traces > 0:
job.summary.append(
f"""and {excess_traces} further trace{"s" if excess_traces > 1 else ""}"""
)
job.terminate()
elif mode in ["prove_basecase", "prove_induction"]:
task_status_lower = task_status.lower(
) if task_status == "PASS" else task_status
job.log(
f"""engine_{engine_idx}: Status returned by engine for {mode.split("_")[1]}: {task_status_lower}"""
)
job.summary.append(
f"""engine_{engine_idx} ({" ".join(engine)}) returned {task_status_lower} for {mode.split("_")[1]}"""
)
if mode == "prove_basecase":
for task in job.basecase_tasks:
task.terminate()
if task_status == "PASS":
job.basecase_pass = True
else:
job.update_status(task_status)
if os.path.exists(
f"{job.workdir}/engine_{engine_idx}/trace.vcd"):
job.summary.append(
f"counterexample trace: {job.workdir}/engine_{engine_idx}/trace.vcd"
)
job.terminate()
elif mode == "prove_induction":
for task in job.induction_tasks:
task.terminate()
if task_status == "PASS":
job.induction_pass = True
else:
assert False
if job.basecase_pass and job.induction_pass:
job.update_status("PASS")
job.summary.append("successful proof by k-induction.")
job.terminate()
else:
assert False
task.output_callback = output_callback
task.exit_callback = exit_callback
def run(mode, job, engine_idx, engine):
abc_opts, abc_command = getopt.getopt(engine[1:], "", [])
if len(abc_command) == 0:
job.error("Missing ABC command.")
for o, a in abc_opts:
job.error("Unexpected ABC engine options.")
if abc_command[0] == "bmc3":
if mode != "bmc":
job.error("ABC command 'bmc3' is only valid in bmc mode.")
abc_command[0] += " -F %d -v" % job.opt_depth
elif abc_command[0] == "sim3":
if mode != "bmc":
job.error("ABC command 'sim3' is only valid in bmc mode.")
abc_command[0] += " -F %d -v" % job.opt_depth
elif abc_command[0] == "pdr":
if mode != "prove":
job.error("ABC command 'pdr' is only valid in prove mode.")
else:
job.error("Invalid ABC command %s." % abc_command[0])
task = SbyTask(job, "engine_%d" % engine_idx, job.model("aig"),
("cd %s; %s -c 'read_aiger model/design_aiger.aig; fold; strash; %s; write_cex -a engine_%d/trace.aiw'") %
(job.workdir, job.exe_paths["abc"], " ".join(abc_command), engine_idx),
logfile=open("%s/engine_%d/logfile.txt" % (job.workdir, engine_idx), "w"))
task.noprintregex = re.compile(r"^\.+$")
task_status = None
def output_callback(line):
nonlocal task_status
match = re.match(r"^Output [0-9]+ of miter .* was asserted in frame [0-9]+.", line)
if match: task_status = "FAIL"
match = re.match(r"^Simulation of [0-9]+ frames for [0-9]+ rounds with [0-9]+ restarts did not assert POs.", line)
if match: task_status = "UNKNOWN"
match = re.match(r"^Stopping BMC because all 2\^[0-9]+ reachable states are visited.", line)
if match: task_status = "PASS"
match = re.match(r"^No output asserted in [0-9]+ frames.", line)
if match: task_status = "PASS"
match = re.match(r"^Property proved.", line)
if match: task_status = "PASS"
return line
def exit_callback(retcode):
assert retcode == 0
assert task_status is not None
job.update_status(task_status)
job.log("engine_%d: Status returned by engine: %s" % (engine_idx, task_status))
job.summary.append("engine_%d (%s) returned %s" % (engine_idx, " ".join(engine), task_status))
job.terminate()
if task_status == "FAIL" and job.opt_aigsmt != "none":
task2 = SbyTask(job, "engine_%d" % engine_idx, job.model("smt2"),
("cd %s; %s -s %s%s --noprogress --append %d --dump-vcd engine_%d/trace.vcd --dump-vlogtb engine_%d/trace_tb.v " +
"--dump-smtc engine_%d/trace.smtc --aig model/design_aiger.aim:engine_%d/trace.aiw --aig-noheader model/design_smt2.smt2") %
(job.workdir, job.exe_paths["smtbmc"], job.opt_aigsmt,
"" if job.opt_tbtop is None else " --vlogtb-top %s" % job.opt_tbtop,
job.opt_append, engine_idx, engine_idx, engine_idx, engine_idx),
logfile=open("%s/engine_%d/logfile2.txt" % (job.workdir, engine_idx), "w"))
task2_status = None
def output_callback2(line):
nonlocal task2_status
match = re.match(r"^## [0-9: ]+ Status: FAILED", line)
if match: task2_status = "FAIL"
match = re.match(r"^## [0-9: ]+ Status: PASSED", line)
if match: task2_status = "PASS"
return line
def exit_callback2(line):
assert task2_status is not None
assert task2_status == "FAIL"
job.summary.append("counterexample trace: %s/engine_%d/trace.vcd" % (job.workdir, engine_idx))
task2.output_callback = output_callback2
task2.exit_callback = exit_callback2
task.output_callback = output_callback
task.exit_callback = exit_callback
def run(mode, job, engine_idx, engine):
opts, solver_args = getopt.getopt(engine[1:], "", [])
assert len(solver_args) > 0
for o, a in opts:
assert False
if solver_args[0] == "suprove":
if mode == "live" and (len(solver_args) == 1 or solver_args[1][0] != "+"):
solver_args.insert(1, "+simple_liveness")
solver_cmd = " ".join([job.exe_paths["suprove"]] + solver_args[1:])
elif solver_args[0] == "avy":
solver_cmd = " ".join([job.exe_paths["avy"], "--cex", "-"] + solver_args[1:])
elif solver_args[0] == "aigbmc":
solver_cmd = " ".join([job.exe_paths["aigbmc"]] + solver_args[1:])
else:
assert False
task = SbyTask(job, "engine_%d" % engine_idx, job.model("aig"),
"cd %s; %s model/design_aiger.aig" % (job.workdir, solver_cmd),
logfile=open("%s/engine_%d/logfile.txt" % (job.workdir, engine_idx), "w"))
task_status = None
produced_cex = False
end_of_cex = False
aiw_file = open("%s/engine_%d/trace.aiw" % (job.workdir, engine_idx), "w")
def output_callback(line):
nonlocal task_status
nonlocal produced_cex
nonlocal end_of_cex
if task_status is not None:
if not end_of_cex and not produced_cex and line.isdigit():
produced_cex = True
if not end_of_cex:
print(line, file=aiw_file)
if line == ".":
end_of_cex = True
return None
if line.startswith("u"):
return "No CEX up to depth %d." % (int(line[1:])-1)
if line in ["0", "1", "2"]:
print(line, file=aiw_file)
if line == "0": task_status = "PASS"
if line == "1": task_status = "FAIL"
if line == "2": task_status = "UNKNOWN"
return None
def exit_callback(retcode):
if solver_args[0] not in ["avy"]:
assert retcode == 0
assert task_status is not None
aiw_file.close()
job.update_status(task_status)
job.log("engine_%d: Status returned by engine: %s" % (engine_idx, task_status))
job.summary.append("engine_%d (%s) returned %s" % (engine_idx, " ".join(engine), task_status))
job.terminate()
if task_status == "FAIL" and job.opt_aigsmt != "none":
if produced_cex:
if mode == "live":
task2 = SbyTask(job, "engine_%d" % engine_idx, job.model("smt2"),
("cd %s; %s -g -s %s%s --noprogress --dump-vcd engine_%d/trace.vcd --dump-vlogtb engine_%d/trace_tb.v " +
"--dump-smtc engine_%d/trace.smtc --aig model/design_aiger.aim:engine_%d/trace.aiw model/design_smt2.smt2") %
(job.workdir, job.exe_paths["smtbmc"], job.opt_aigsmt,
"" if job.opt_tbtop is None else " --vlogtb-top %s" % job.opt_tbtop,
engine_idx, engine_idx, engine_idx, engine_idx),
logfile=open("%s/engine_%d/logfile2.txt" % (job.workdir, engine_idx), "w"))
else:
task2 = SbyTask(job, "engine_%d" % engine_idx, job.model("smt2"),
("cd %s; %s -s %s%s --noprogress --append %d --dump-vcd engine_%d/trace.vcd --dump-vlogtb engine_%d/trace_tb.v " +
"--dump-smtc engine_%d/trace.smtc --aig model/design_aiger.aim:engine_%d/trace.aiw model/design_smt2.smt2") %
(job.workdir, job.exe_paths["smtbmc"], job.opt_aigsmt,
"" if job.opt_tbtop is None else " --vlogtb-top %s" % job.opt_tbtop,
job.opt_append, engine_idx, engine_idx, engine_idx, engine_idx),
logfile=open("%s/engine_%d/logfile2.txt" % (job.workdir, engine_idx), "w"))
task2_status = None
def output_callback2(line):
nonlocal task2_status
match = re.match(r"^## [0-9: ]+ Status: FAILED", line)
if match: task2_status = "FAIL"
match = re.match(r"^## [0-9: ]+ Status: PASSED", line)
if match: task2_status = "PASS"
return line
def exit_callback2(line):
assert task2_status is not None
if mode == "live":
assert task2_status == "PASS"
else:
assert task2_status == "FAIL"
job.summary.append("counterexample trace: %s/engine_%d/trace.vcd" % (job.workdir, engine_idx))
task2.output_callback = output_callback2
task2.exit_callback = exit_callback2
else:
job.log("engine_%d: Engine did not produce a counter example." % engine_idx)
task.output_callback = output_callback
task.exit_callback = exit_callback
def exit_callback(retcode):
if solver_args[0] not in ["avy"]:
assert retcode == 0
assert task_status is not None
aiw_file.close()
job.update_status(task_status)
job.log(
f"engine_{engine_idx}: Status returned by engine: {task_status}")
job.summary.append(
f"""engine_{engine_idx} ({" ".join(engine)}) returned {task_status}"""
)
job.terminate()
if task_status == "FAIL" and job.opt_aigsmt != "none":
if produced_cex:
if mode == "live":
task2 = SbyTask(
job,
f"engine_{engine_idx}",
job.model("smt2"),
("cd {}; {} -g -s {}{} --noprogress --dump-vcd engine_{i}/trace.vcd --dump-vlogtb engine_{i}/trace_tb.v "
+
"--dump-smtc engine_{i}/trace.smtc --aig model/design_aiger.aim:engine_{i}/trace.aiw model/design_smt2.smt2"
).format(job.workdir,
job.exe_paths["smtbmc"],
job.opt_aigsmt,
"" if job.opt_tbtop is None else
f" --vlogtb-top {job.opt_tbtop}",
i=engine_idx),
logfile=open(
f"{job.workdir}/engine_{engine_idx}/logfile2.txt",
"w"))
else:
task2 = SbyTask(
job,
f"engine_{engine_idx}",
job.model("smt2"),
("cd {}; {} -s {}{} --noprogress --append {} --dump-vcd engine_{i}/trace.vcd --dump-vlogtb engine_{i}/trace_tb.v "
+
"--dump-smtc engine_{i}/trace.smtc --aig model/design_aiger.aim:engine_{i}/trace.aiw model/design_smt2.smt2"
).format(job.workdir,
job.exe_paths["smtbmc"],
job.opt_aigsmt,
"" if job.opt_tbtop is None else
f" --vlogtb-top {job.opt_tbtop}",
job.opt_append,
i=engine_idx),
logfile=open(
f"{job.workdir}/engine_{engine_idx}/logfile2.txt",
"w"))
task2_status = None
def output_callback2(line):
nonlocal task2_status
match = re.match(r"^## [0-9: ]+ Status: FAILED", line)
if match: task2_status = "FAIL"
match = re.match(r"^## [0-9: ]+ Status: PASSED", line)
if match: task2_status = "PASS"
return line
def exit_callback2(line):
assert task2_status is not None
if mode == "live":
assert task2_status == "PASS"
else:
assert task2_status == "FAIL"
if os.path.exists(
f"{job.workdir}/engine_{engine_idx}/trace.vcd"):
job.summary.append(
f"counterexample trace: {job.workdir}/engine_{engine_idx}/trace.vcd"
)
task2.output_callback = output_callback2
task2.exit_callback = exit_callback2
else:
job.log(
f"engine_{engine_idx}: Engine did not produce a counter example."
)
def exit_callback(retcode):
assert retcode == 0
assert task_status is not None
if task_status == "PASS":
print("unsat", file=wit_file)
wit_file.close()
job.update_status(task_status)
job.log("engine_{}: Status returned by engine: {}".format(
engine_idx, task_status))
job.summary.append("engine_{} ({}) returned {}".format(
engine_idx, " ".join(engine), task_status))
job.terminate()
if task_status == "FAIL" and job.opt_aigsmt != "none":
if produced_cex:
has_arrays = False
with open("{}/model/design_btor.btor".format(job.workdir),
"r") as f:
for line in f:
line = line.split()
if len(line) == 5 and line[1] == "sort" and line[
2] == "array":
has_arrays = True
break
if has_arrays:
setupcmd = "cd {};".format(job.workdir)
finalwit = "engine_{}/trace.wit".format(engine_idx)
else:
setupcmd = "cd {}; {{ echo sat; btorsim --states model/design_btor.btor engine_{i}/trace.wit; }} > engine_{i}/simtrace.wit &&".format(
job.workdir, i=engine_idx)
finalwit = "engine_{}/simtrace.wit".format(engine_idx)
if mode == "live":
task2 = SbyTask(
job,
"engine_{}".format(engine_idx),
job.model("smt2"),
("{} {} -g -s {}{} --noprogress --dump-vcd engine_{i}/trace.vcd --dump-vlogtb engine_{i}/trace_tb.v "
+
"--dump-smtc engine_{i}/trace.smtc --btorwit {} model/design_smt2.smt2"
).format(setupcmd,
job.exe_paths["smtbmc"],
job.opt_aigsmt,
"" if job.opt_tbtop is None else
" --vlogtb-top {}".format(job.opt_tbtop),
finalwit,
i=engine_idx),
logfile=open(
"{}/engine_{}/logfile2.txt".format(
job.workdir, engine_idx), "w"))
else:
task2 = SbyTask(
job,
"engine_{}".format(engine_idx),
job.model("smt2"),
("{} {} -s {}{} --noprogress --append {} --dump-vcd engine_{i}/trace.vcd --dump-vlogtb engine_{i}/trace_tb.v "
+
"--dump-smtc engine_{i}/trace.smtc --btorwit {} model/design_smt2.smt2"
).format(setupcmd,
job.exe_paths["smtbmc"],
job.opt_aigsmt,
"" if job.opt_tbtop is None else
" --vlogtb-top {}".format(job.opt_tbtop),
job.opt_append,
finalwit,
i=engine_idx),
logfile=open(
"{}/engine_{}/logfile2.txt".format(
job.workdir, engine_idx), "w"))
task2_status = None
def output_callback2(line):
nonlocal task2_status
match = re.match(r"^## [0-9: ]+ Status: FAILED", line)
if match: task2_status = "FAIL"
match = re.match(r"^## [0-9: ]+ Status: PASSED", line)
if match: task2_status = "PASS"
return line
def exit_callback2(line):
assert task2_status is not None
if mode == "live":
assert task2_status == "PASS"
else:
assert task2_status == "FAIL"
if os.path.exists("{}/engine_{}/trace.vcd".format(
job.workdir, engine_idx)):
job.summary.append(
"counterexample trace: {}/engine_{}/trace.vcd".
format(job.workdir, engine_idx))
task2.output_callback = output_callback2
task2.exit_callback = exit_callback2
else:
job.log("engine_{}: Engine did not produce a counter example.".
format(engine_idx))
def run(mode, job, engine_idx, engine):
opts, solver_args = getopt.getopt(engine[1:], "", [])
if len(solver_args) == 0:
job.error("Missing solver command.")
for o, a in opts:
job.error("Unexpected BTOR engine options.")
if solver_args[0] == "btormc":
solver_cmd = job.exe_paths[
"btormc"] + " --stop-first -v 1 -kmax {}".format(job.opt_depth - 1)
if job.opt_skip is not None:
solver_cmd += " -kmin {}".format(job.opt_skip)
solver_cmd += " ".join([""] + solver_args[1:])
else:
job.error("Invalid solver command {}.".format(solver_args[0]))
task = SbyTask(
job,
"engine_{}".format(engine_idx),
job.model("btor"),
"cd {}; {} model/design_btor.btor".format(job.workdir, solver_cmd),
logfile=open(
"{}/engine_{}/logfile.txt".format(job.workdir, engine_idx), "w"))
task_status = None
produced_cex = False
end_of_cex = False
wit_file = open("{}/engine_{}/trace.wit".format(job.workdir, engine_idx),
"w")
def output_callback(line):
nonlocal task_status
nonlocal produced_cex
nonlocal end_of_cex
if not end_of_cex and not produced_cex and line == "sat":
produced_cex = True
task_status = "FAIL"
if produced_cex and not end_of_cex:
print(line, file=wit_file)
if line == ".":
end_of_cex = True
if line.startswith("u"):
return "No CEX up to depth {}.".format(int(line[1:]) - 1)
if solver_args[0] == "btormc":
if "calling BMC on" in line:
return line
if "SATISFIABLE" in line:
return line
if "bad state properties at bound" in line:
return line
if "deleting model checker:" in line:
if task_status is None:
task_status = "PASS"
return line
if not produced_cex or end_of_cex:
print(line, file=task.logfile)
return None
def exit_callback(retcode):
assert retcode == 0
assert task_status is not None
if task_status == "PASS":
print("unsat", file=wit_file)
wit_file.close()
job.update_status(task_status)
job.log("engine_{}: Status returned by engine: {}".format(
engine_idx, task_status))
job.summary.append("engine_{} ({}) returned {}".format(
engine_idx, " ".join(engine), task_status))
job.terminate()
if task_status == "FAIL" and job.opt_aigsmt != "none":
if produced_cex:
has_arrays = False
with open("{}/model/design_btor.btor".format(job.workdir),
"r") as f:
for line in f:
line = line.split()
if len(line) == 5 and line[1] == "sort" and line[
2] == "array":
has_arrays = True
break
if has_arrays:
setupcmd = "cd {};".format(job.workdir)
finalwit = "engine_{}/trace.wit".format(engine_idx)
else:
setupcmd = "cd {}; {{ echo sat; btorsim --states model/design_btor.btor engine_{i}/trace.wit; }} > engine_{i}/simtrace.wit &&".format(
job.workdir, i=engine_idx)
finalwit = "engine_{}/simtrace.wit".format(engine_idx)
if mode == "live":
task2 = SbyTask(
job,
"engine_{}".format(engine_idx),
job.model("smt2"),
("{} {} -g -s {}{} --noprogress --dump-vcd engine_{i}/trace.vcd --dump-vlogtb engine_{i}/trace_tb.v "
+
"--dump-smtc engine_{i}/trace.smtc --btorwit {} model/design_smt2.smt2"
).format(setupcmd,
job.exe_paths["smtbmc"],
job.opt_aigsmt,
"" if job.opt_tbtop is None else
" --vlogtb-top {}".format(job.opt_tbtop),
finalwit,
i=engine_idx),
logfile=open(
"{}/engine_{}/logfile2.txt".format(
job.workdir, engine_idx), "w"))
else:
task2 = SbyTask(
job,
"engine_{}".format(engine_idx),
job.model("smt2"),
("{} {} -s {}{} --noprogress --append {} --dump-vcd engine_{i}/trace.vcd --dump-vlogtb engine_{i}/trace_tb.v "
+
"--dump-smtc engine_{i}/trace.smtc --btorwit {} model/design_smt2.smt2"
).format(setupcmd,
job.exe_paths["smtbmc"],
job.opt_aigsmt,
"" if job.opt_tbtop is None else
" --vlogtb-top {}".format(job.opt_tbtop),
job.opt_append,
finalwit,
i=engine_idx),
logfile=open(
"{}/engine_{}/logfile2.txt".format(
job.workdir, engine_idx), "w"))
task2_status = None
def output_callback2(line):
nonlocal task2_status
match = re.match(r"^## [0-9: ]+ Status: FAILED", line)
if match: task2_status = "FAIL"
match = re.match(r"^## [0-9: ]+ Status: PASSED", line)
if match: task2_status = "PASS"
return line
def exit_callback2(line):
assert task2_status is not None
if mode == "live":
assert task2_status == "PASS"
else:
assert task2_status == "FAIL"
if os.path.exists("{}/engine_{}/trace.vcd".format(
job.workdir, engine_idx)):
job.summary.append(
"counterexample trace: {}/engine_{}/trace.vcd".
format(job.workdir, engine_idx))
task2.output_callback = output_callback2
task2.exit_callback = exit_callback2
else:
job.log("engine_{}: Engine did not produce a counter example.".
format(engine_idx))
task.output_callback = output_callback
task.exit_callback = exit_callback
def run(mode, job, engine_idx, engine):
smtbmc_opts = []
nomem_opt = False
presat_opt = True
unroll_opt = None
syn_opt = False
stbv_opt = False
stdt_opt = False
dumpsmt2 = False
progress = False
basecase_only = False
induction_only = False
opts, args = getopt.getopt(engine[1:], "", [
"nomem", "syn", "stbv", "stdt", "presat", "nopresat", "unroll",
"nounroll", "dumpsmt2", "progress", "basecase", "induction"
])
for o, a in opts:
if o == "--nomem":
nomem_opt = True
elif o == "--syn":
syn_opt = True
elif o == "--stbv":
stbv_opt = True
elif o == "--stdt":
stdt_opt = True
elif o == "--presat":
presat_opt = True
elif o == "--nopresat":
presat_opt = False
elif o == "--unroll":
unroll_opt = True
elif o == "--nounroll":
unroll_opt = False
elif o == "--dumpsmt2":
dumpsmt2 = True
elif o == "--progress":
progress = True
elif o == "--basecase":
if induction_only:
job.error(
"smtbmc options --basecase and --induction are exclusive.")
basecase_only = True
elif o == "--induction":
if basecase_only:
job.error(
"smtbmc options --basecase and --induction are exclusive.")
induction_only = True
else:
job.error("Invalid smtbmc options {}.".format(o))
xtra_opts = False
for i, a in enumerate(args):
if i == 0 and a == "z3" and unroll_opt is None:
unroll_opt = False
if a == "--":
xtra_opts = True
continue
if xtra_opts:
smtbmc_opts.append(a)
else:
smtbmc_opts += ["-s" if i == 0 else "-S", a]
if presat_opt:
smtbmc_opts += ["--presat"]
if unroll_opt is None or unroll_opt:
smtbmc_opts += ["--unroll"]
if job.opt_smtc is not None:
smtbmc_opts += ["--smtc", "src/{}".format(job.opt_smtc)]
if job.opt_tbtop is not None:
smtbmc_opts += ["--vlogtb-top", job.opt_tbtop]
model_name = "smt2"
if syn_opt: model_name += "_syn"
if nomem_opt: model_name += "_nomem"
if stbv_opt: model_name += "_stbv"
if stdt_opt: model_name += "_stdt"
if mode == "prove":
if not induction_only:
run("prove_basecase", job, engine_idx, engine)
if not basecase_only:
run("prove_induction", job, engine_idx, engine)
return
taskname = "engine_{}".format(engine_idx)
trace_prefix = "engine_{}/trace".format(engine_idx)
logfile_prefix = "{}/engine_{}/logfile".format(job.workdir, engine_idx)
if mode == "prove_basecase":
taskname += ".basecase"
logfile_prefix += "_basecase"
if mode == "prove_induction":
taskname += ".induction"
trace_prefix += "_induct"
logfile_prefix += "_induction"
smtbmc_opts.append("-i")
if mode == "cover":
smtbmc_opts.append("-c")
trace_prefix += "%"
if dumpsmt2:
smtbmc_opts += ["--dump-smt2", trace_prefix.replace("%", "") + ".smt2"]
if not progress:
smtbmc_opts.append("--noprogress")
if job.opt_skip is not None:
t_opt = "{}:{}".format(job.opt_skip, job.opt_depth)
else:
t_opt = "{}".format(job.opt_depth)
task = SbyTask(
job,
taskname,
job.model(model_name),
"cd {}; {} {} -t {} --append {} --dump-vcd {p}.vcd --dump-vlogtb {p}_tb.v --dump-smtc {p}.smtc model/design_{}.smt2"
.format(job.workdir,
job.exe_paths["smtbmc"],
" ".join(smtbmc_opts),
t_opt,
job.opt_append,
model_name,
p=trace_prefix),
logfile=open(logfile_prefix + ".txt", "w"),
logstderr=(not progress))
if mode == "prove_basecase":
job.basecase_tasks.append(task)
if mode == "prove_induction":
job.induction_tasks.append(task)
task_status = None
def output_callback(line):
nonlocal task_status
match = re.match(r"^## [0-9: ]+ Status: FAILED", line)
if match:
task_status = "FAIL"
return line.replace("FAILED", "failed")
match = re.match(r"^## [0-9: ]+ Status: PASSED", line)
if match:
task_status = "PASS"
return line.replace("PASSED", "passed")
match = re.match(r"^## [0-9: ]+ Status: PREUNSAT", line)
if match:
task_status = "ERROR"
return line
return line
def exit_callback(retcode):
if task_status is None:
job.error("engine_{}: Engine terminated without status.".format(
engine_idx))
if mode == "bmc" or mode == "cover":
job.update_status(task_status)
task_status_lower = task_status.lower(
) if task_status == "PASS" else task_status
job.log("engine_{}: Status returned by engine: {}".format(
engine_idx, task_status_lower))
job.summary.append("engine_{} ({}) returned {}".format(
engine_idx, " ".join(engine), task_status_lower))
if task_status == "FAIL" and mode != "cover":
if os.path.exists("{}/engine_{}/trace.vcd".format(
job.workdir, engine_idx)):
job.summary.append(
"counterexample trace: {}/engine_{}/trace.vcd".format(
job.workdir, engine_idx))
job.terminate()
elif mode in ["prove_basecase", "prove_induction"]:
task_status_lower = task_status.lower(
) if task_status == "PASS" else task_status
job.log("engine_{}: Status returned by engine for {}: {}".format(
engine_idx,
mode.split("_")[1], task_status_lower))
job.summary.append("engine_{} ({}) returned {} for {}".format(
engine_idx, " ".join(engine), task_status_lower,
mode.split("_")[1]))
if mode == "prove_basecase":
for task in job.basecase_tasks:
task.terminate()
if task_status == "PASS":
job.basecase_pass = True
else:
job.update_status(task_status)
if os.path.exists("{}/engine_{}/trace.vcd".format(
job.workdir, engine_idx)):
job.summary.append(
"counterexample trace: {}/engine_{}/trace.vcd".
format(job.workdir, engine_idx))
job.terminate()
elif mode == "prove_induction":
for task in job.induction_tasks:
task.terminate()
if task_status == "PASS":
job.induction_pass = True
else:
assert False
if job.basecase_pass and job.induction_pass:
job.update_status("PASS")
job.summary.append("successful proof by k-induction.")
job.terminate()
else:
assert False
task.output_callback = output_callback
task.exit_callback = exit_callback