mirror of
https://github.com/YosysHQ/sby.git
synced 2025-04-04 05:49:57 +00:00
127 lines
4.8 KiB
Python
127 lines
4.8 KiB
Python
#
|
|
# SymbiYosys (sby) -- Front-end for Yosys-based formal verification flows
|
|
#
|
|
# Copyright (C) 2016 Claire Xenia Wolf <claire@yosyshq.com>
|
|
#
|
|
# Permission to use, copy, modify, and/or distribute this software for any
|
|
# purpose with or without fee is hereby granted, provided that the above
|
|
# copyright notice and this permission notice appear in all copies.
|
|
#
|
|
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
#
|
|
|
|
import re, os, getopt
|
|
from sby_core import SbyTask
|
|
|
|
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" -F {job.opt_depth} -v"
|
|
|
|
elif abc_command[0] == "sim3":
|
|
if mode != "bmc":
|
|
job.error("ABC command 'sim3' is only valid in bmc mode.")
|
|
abc_command[0] += f" -F {job.opt_depth} -v"
|
|
|
|
elif abc_command[0] == "pdr":
|
|
if mode != "prove":
|
|
job.error("ABC command 'pdr' is only valid in prove mode.")
|
|
|
|
else:
|
|
job.error(f"Invalid ABC command {abc_command[0]}.")
|
|
|
|
task = SbyTask(
|
|
job,
|
|
f"engine_{engine_idx}",
|
|
job.model("aig"),
|
|
f"""cd {job.workdir}; {job.exe_paths["abc"]} -c 'read_aiger model/design_aiger.aig; fold; strash; {" ".join(abc_command)}; write_cex -a engine_{engine_idx}/trace.aiw'""",
|
|
logfile=open(f"{job.workdir}/engine_{engine_idx}/logfile.txt", "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(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":
|
|
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 --aig-noheader 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
|
|
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
|
|
|
|
task.output_callback = output_callback
|
|
task.exit_callback = exit_callback
|