mirror of
https://github.com/YosysHQ/sby.git
synced 2025-07-18 04:26:44 +00:00
add btor cover mode; use btorsim for vcd generation
Signed-off-by: N. Engelhardt <nak@symbioticeda.com>
This commit is contained in:
N. Engelhardt
parent
6a918fe102
commit
180e07f9c4
3 changed files with 73 additions and 68 deletions
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@ -29,7 +29,7 @@ def run(mode, job, engine_idx, engine):
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job.error("Unexpected BTOR engine options.")
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if solver_args[0] == "btormc":
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solver_cmd = job.exe_paths["btormc"] + " --stop-first -v 1 -kmax {}".format(job.opt_depth - 1)
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solver_cmd = job.exe_paths["btormc"] + " --stop-first {} -v 1 -kmax {}".format(0 if mode == "cover" else 1, job.opt_depth - 1)
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if job.opt_skip is not None:
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solver_cmd += " -kmin {}".format(job.opt_skip)
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solver_cmd += " ".join([""] + solver_args[1:])
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@ -41,24 +41,39 @@ def run(mode, job, engine_idx, engine):
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"cd {}; {} model/design_btor.btor".format(job.workdir, solver_cmd),
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logfile=open("{}/engine_{}/logfile.txt".format(job.workdir, engine_idx), "w"))
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task_status = None
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produced_cex = False
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end_of_cex = False
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wit_file = open("{}/engine_{}/trace.wit".format(job.workdir, engine_idx), "w")
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solver_status = None
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produced_cex = 0
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expected_cex = 1
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wit_file = None
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def output_callback(line):
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nonlocal task_status
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nonlocal solver_status
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nonlocal produced_cex
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nonlocal end_of_cex
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nonlocal expected_cex
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nonlocal wit_file
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if not end_of_cex and not produced_cex and line == "sat":
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produced_cex = True
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task_status = "FAIL"
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if mode == "cover":
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match = re.search(r"calling BMC on ([0-9]+) properties", line)
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if match:
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expected_cex = int(match[1])
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assert expected_cex > 0
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assert produced_cex == 0
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if produced_cex and not end_of_cex:
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if (produced_cex < expected_cex) and line == "sat":
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assert wit_file == None
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if expected_cex == 1:
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wit_file = open("{}/engine_{}/trace.wit".format(job.workdir, engine_idx), "w")
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else:
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wit_file = open("{}/engine_{}/trace{}.wit".format(job.workdir, engine_idx, produced_cex), "w")
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if wit_file:
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print(line, file=wit_file)
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if line == ".":
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end_of_cex = True
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produced_cex += 1
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wit_file.close()
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wit_file = None
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if produced_cex == expected_cex:
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solver_status = "sat"
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if line.startswith("u"):
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return "No CEX up to depth {}.".format(int(line[1:])-1)
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@ -71,22 +86,32 @@ def run(mode, job, engine_idx, engine):
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if "bad state properties at bound" in line:
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return line
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if "deleting model checker:" in line:
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if task_status is None:
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task_status = "PASS"
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if solver_status is None:
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solver_status = "unsat"
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return line
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if not produced_cex or end_of_cex:
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if not wit_file:
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print(line, file=task.logfile)
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return None
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def exit_callback(retcode):
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assert retcode == 0
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assert task_status is not None
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assert solver_status is not None
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if task_status == "PASS":
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print("unsat", file=wit_file)
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wit_file.close()
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if solver_status == "unsat":
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if expected_cex == 1:
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with open("{}/engine_{}/trace.wit".format(job.workdir, engine_idx), "w") as wit_file:
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print("unsat", file=wit_file)
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else:
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for i in range(produced_cex, expected_cex):
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with open("{}/engine_{}/trace{}.wit".format(job.workdir, engine_idx, i), "w") as wit_file:
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print("unsat", file=wit_file)
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if mode == "cover":
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task_status = "PASS" if solver_status == "sat" else "FAIL"
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else:
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task_status = "FAIL" if solver_status == "sat" else "PASS"
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job.update_status(task_status)
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job.log("engine_{}: Status returned by engine: {}".format(engine_idx, task_status))
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@ -94,66 +119,42 @@ def run(mode, job, engine_idx, engine):
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job.terminate()
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if task_status == "FAIL" and job.opt_aigsmt != "none":
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if produced_cex:
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has_arrays = False
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if produced_cex == 0:
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job.log("engine_{}: Engine did not produce a counter example.".format(engine_idx))
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elif produced_cex == 1:
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task2 = SbyTask(job, "engine_{}".format(engine_idx), job.model("btor"),
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"cd {dir}; btorsim -c --vcd engine_{idx}/trace.vcd --hierarchical-symbols model/design_btor.btor engine_{idx}/trace.wit".format(dir=job.workdir, idx=engine_idx),
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logfile=open("{dir}/engine_{idx}/logfile2.txt".format(dir=job.workdir, idx=engine_idx), "w"))
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with open("{}/model/design_btor.btor".format(job.workdir), "r") as f:
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for line in f:
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line = line.split()
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if len(line) == 5 and line[1] == "sort" and line[2] == "array":
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has_arrays = True
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break
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def output_callback2(line):
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return line
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if has_arrays:
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setupcmd = "cd {};".format(job.workdir)
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finalwit = "engine_{}/trace.wit".format(engine_idx)
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else:
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setupcmd = "cd {}; { echo sat; btorsim --states model/design_btor.btor engine_{i}/trace.wit; } > engine_{i}/simtrace.wit &&".format(job.workdir, i=engine_idx)
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finalwit = "engine_{}/simtrace.wit".format(engine_idx)
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def exit_callback2(line):
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assert retcode == 0
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if mode == "live":
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task2 = SbyTask(job, "engine_{}".format(engine_idx), job.model("smt2"),
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("{} {} -g -s {}{} --noprogress --dump-vcd engine_{i}/trace.vcd --dump-vlogtb engine_{i}/trace_tb.v " +
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"--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),
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logfile=open("{}/engine_{}/logfile2.txt".format(job.workdir, engine_idx), "w"))
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else:
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task2 = SbyTask(job, "engine_{}".format(engine_idx), job.model("smt2"),
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("{} {} -s {}{} --noprogress --append {} --dump-vcd engine_{i}/trace.vcd --dump-vlogtb engine_{i}/trace_tb.v " +
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"--dump-smtc engine_{i}/trace.smtc --btorwit {} model/design_smt2.smt2").format
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(setupcmd, job.exe_paths["smtbmc"], job.opt_aigsmt,
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"" if job.opt_tbtop is None else " --vlogtb-top {}".format(job.opt_tbtop),
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job.opt_append, finalwit, i=engine_idx),
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logfile=open("{}/engine_{}/logfile2.txt".format(job.workdir, engine_idx), "w"))
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if os.path.exists("{}/engine_{}/trace.vcd".format(job.workdir, engine_idx)):
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job.summary.append("counterexample trace: {}/engine_{}/trace.vcd".format(job.workdir, engine_idx))
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task2_status = None
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task2.output_callback = output_callback2
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task2.exit_callback = exit_callback2
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else:
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for i in range(produced_cex):
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task2 = SbyTask(job, "engine_{}".format(engine_idx), job.model("btor"),
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"cd {dir}; btorsim -c --vcd engine_{idx}/trace{i}.vcd --hierarchical-symbols model/design_btor.btor engine_{idx}/trace{i}.wit".format(dir=job.workdir, idx=engine_idx, i=i),
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logfile=open("{dir}/engine_{idx}/logfile{}.txt".format(i+2, dir=job.workdir, idx=engine_idx), "w"))
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def output_callback2(line):
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nonlocal task2_status
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match = re.match(r"^## [0-9: ]+ Status: FAILED", line)
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if match: task2_status = "FAIL"
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match = re.match(r"^## [0-9: ]+ Status: PASSED", line)
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if match: task2_status = "PASS"
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return line
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def exit_callback2(line):
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assert task2_status is not None
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if mode == "live":
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assert task2_status == "PASS"
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else:
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assert task2_status == "FAIL"
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assert retcode == 0
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if os.path.exists("{}/engine_{}/trace.vcd".format(job.workdir, engine_idx)):
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job.summary.append("counterexample trace: {}/engine_{}/trace.vcd".format(job.workdir, engine_idx))
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if os.path.exists("{}/engine_{}/trace{}.vcd".format(job.workdir, engine_idx, i)):
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job.summary.append("counterexample trace: {}/engine_{}/trace{}.vcd".format(job.workdir, engine_idx, i))
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task2.output_callback = output_callback2
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task2.exit_callback = exit_callback2
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else:
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job.log("engine_{}: Engine did not produce a counter example.".format(engine_idx))
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task.output_callback = output_callback
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task.exit_callback = exit_callback
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