mirror of
https://github.com/YosysHQ/sby.git
synced 2025-04-04 05:49:57 +00:00
Support for "abc --keep-going pdr" via new "pdr -X" mode
This commit is contained in:
Jannis Harder
parent
52184e5bf0
commit
6ba762db4c
|
|
@ -787,8 +787,8 @@ class SbySummary:
|
|||
event = same_events[0]
|
||||
steps = sorted(e.step for e in same_events)
|
||||
if short and len(steps) > step_limit:
|
||||
steps = [str(step) for step in steps[:step_limit]]
|
||||
excess = len(steps) - step_limit
|
||||
steps = [str(step) for step in steps[:step_limit]]
|
||||
omitted_excess = True
|
||||
steps[-1] += f" and {excess} further step{'s' if excess != 1 else ''}"
|
||||
|
||||
|
|
|
|||
|
|
@ -17,32 +17,101 @@
|
|||
#
|
||||
|
||||
import re, getopt
|
||||
import json
|
||||
from sby_core import SbyProc
|
||||
from sby_engine_aiger import aigsmt_exit_callback
|
||||
from sby_engine_aiger import aigsmt_exit_callback, aigsmt_trace_callback
|
||||
|
||||
|
||||
def abc_getopt(args, long):
|
||||
long = set(long)
|
||||
output = []
|
||||
parsed = []
|
||||
toggles = set()
|
||||
pos = 0
|
||||
|
||||
while pos < len(args):
|
||||
arg = args[pos]
|
||||
pos += 1
|
||||
if not arg.startswith('-'):
|
||||
output.append(arg)
|
||||
elif arg == '--':
|
||||
output.extend(args[pos:])
|
||||
break
|
||||
elif arg.startswith('--'):
|
||||
if '=' in arg:
|
||||
prefix, param = arg.split('=', 1)
|
||||
if prefix + "=" in long:
|
||||
parsed.append(prefix, param)
|
||||
elif arg[2:] in long:
|
||||
parsed.append((arg, ''))
|
||||
elif arg[2:] + "=" in long:
|
||||
parsed.append((arg, args[pos]))
|
||||
pos += 1
|
||||
else:
|
||||
output.append(arg)
|
||||
elif arg.startswith('-'):
|
||||
output.append(arg)
|
||||
for c in arg[1:]:
|
||||
if 'A' <= c <= 'Z':
|
||||
if pos < len(args):
|
||||
output.append(args[pos])
|
||||
pos += 1
|
||||
else:
|
||||
toggles.symmetric_difference_update([c])
|
||||
|
||||
return output, parsed, toggles
|
||||
|
||||
|
||||
def run(mode, task, engine_idx, engine):
|
||||
abc_opts, abc_command = getopt.getopt(engine[1:], "", [])
|
||||
keep_going = False
|
||||
|
||||
fold_command = "fold"
|
||||
if task.opt_aigfolds:
|
||||
fold_command += " -s"
|
||||
|
||||
abc_command, custom_options, toggles = abc_getopt(engine[1:], [
|
||||
"keep-going",
|
||||
])
|
||||
|
||||
if len(abc_command) == 0:
|
||||
task.error("Missing ABC command.")
|
||||
|
||||
for o, a in abc_opts:
|
||||
task.error("Unexpected ABC engine options.")
|
||||
if abc_command[0].startswith('-'):
|
||||
task.error(f"Unexpected ABC engine option '{abc_command[0]}'.")
|
||||
|
||||
if abc_command[0] == "bmc3":
|
||||
if mode != "bmc":
|
||||
task.error("ABC command 'bmc3' is only valid in bmc mode.")
|
||||
for o, a in custom_options:
|
||||
task.error(f"Option {o} not supported by 'abc {abc_command[0]}'")
|
||||
abc_command[0] += f" -F {task.opt_depth} -v"
|
||||
|
||||
elif abc_command[0] == "sim3":
|
||||
if mode != "bmc":
|
||||
task.error("ABC command 'sim3' is only valid in bmc mode.")
|
||||
for o, a in custom_options:
|
||||
task.error(f"Option {o} not supported by 'abc {abc_command[0]}'")
|
||||
abc_command[0] += f" -F {task.opt_depth} -v"
|
||||
|
||||
elif abc_command[0] == "pdr":
|
||||
if mode != "prove":
|
||||
task.error("ABC command 'pdr' is only valid in prove mode.")
|
||||
abc_command[0] += f" -v -I engine_{engine_idx}/invariants.pla"
|
||||
|
||||
for o, a in custom_options:
|
||||
if o == '--keep-going':
|
||||
keep_going = True
|
||||
else:
|
||||
task.error(f"Option {o} not supported by 'abc {abc_command[0]}'")
|
||||
|
||||
abc_command[0] += " -v"
|
||||
|
||||
if keep_going:
|
||||
abc_command += ["-a", "-X", f"engine_{engine_idx}/trace_"]
|
||||
|
||||
if 'd' in toggles:
|
||||
abc_command += ["-I", f"engine_{engine_idx}/invariants.pla"]
|
||||
if not task.opt_aigfolds:
|
||||
fold_command += " -s"
|
||||
|
||||
else:
|
||||
task.error(f"Invalid ABC command {abc_command[0]}.")
|
||||
|
|
@ -66,9 +135,8 @@ def run(mode, task, engine_idx, engine):
|
|||
task,
|
||||
f"engine_{engine_idx}",
|
||||
task.model("aig"),
|
||||
f"""cd {task.workdir}; {task.exe_paths["abc"]} -c 'read_aiger model/design_aiger.aig; fold{
|
||||
" -s" if task.opt_aigfolds or (abc_command[0].startswith("pdr ") and "-d" in abc_command[1:]) else ""
|
||||
}; strash; {" ".join(abc_command)}; write_cex -a engine_{engine_idx}/trace.aiw'""",
|
||||
f"""cd {task.workdir}; {task.exe_paths["abc"]} -c 'read_aiger model/design_aiger.aig; {
|
||||
fold_command}; strash; {" ".join(abc_command)}; write_cex -a engine_{engine_idx}/trace.aiw'""",
|
||||
logfile=open(f"{task.workdir}/engine_{engine_idx}/logfile.txt", "w")
|
||||
)
|
||||
proc.checkretcode = True
|
||||
|
|
@ -76,11 +144,42 @@ def run(mode, task, engine_idx, engine):
|
|||
proc.noprintregex = re.compile(r"^\.+$")
|
||||
proc_status = None
|
||||
|
||||
procs_running = 1
|
||||
|
||||
aiger_props = None
|
||||
disproved = []
|
||||
|
||||
def output_callback(line):
|
||||
nonlocal proc_status
|
||||
nonlocal procs_running
|
||||
nonlocal aiger_props
|
||||
|
||||
match = re.match(r"^Output [0-9]+ of miter .* was asserted in frame [0-9]+.", line)
|
||||
if match: proc_status = "FAIL"
|
||||
if keep_going and aiger_props is None:
|
||||
with open(f"{task.workdir}/model/design_aiger.ywa") as ywa_file:
|
||||
ywa = json.load(ywa_file)
|
||||
aiger_props = []
|
||||
for path in ywa["asserts"]:
|
||||
aiger_props.append(task.design.properties_by_path[tuple(path)])
|
||||
|
||||
if keep_going:
|
||||
match = re.match(r"Writing CEX for output ([0-9]+) to engine_[0-9]+/(.*)\.aiw", line)
|
||||
if match:
|
||||
output = int(match[1])
|
||||
prop = aiger_props[output]
|
||||
prop.status = "FAIL"
|
||||
|
||||
task.status_db.set_task_property_status(prop, data=dict(source="abc pdr", engine=f"engine_{engine_idx}"))
|
||||
disproved.append(output)
|
||||
proc_status = "FAIL"
|
||||
proc = aigsmt_trace_callback(task, engine_idx, proc_status,
|
||||
run_aigsmt=run_aigsmt, smtbmc_vcd=smtbmc_vcd, smtbmc_append=smtbmc_append, sim_append=sim_append,
|
||||
name=match[2],
|
||||
)
|
||||
proc.register_exit_callback(exit_callback)
|
||||
procs_running += 1
|
||||
else:
|
||||
match = re.match(r"^Output [0-9]+ of miter .* was asserted in frame [0-9]+.", line)
|
||||
if match: proc_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: proc_status = "UNKNOWN"
|
||||
|
|
@ -94,11 +193,38 @@ def run(mode, task, engine_idx, engine):
|
|||
match = re.match(r"^Property proved.", line)
|
||||
if match: proc_status = "PASS"
|
||||
|
||||
if keep_going:
|
||||
match = re.match(r"^Properties: All = (\d+). Proved = (\d+). Disproved = (\d+). Undecided = (\d+).", line)
|
||||
if match:
|
||||
all_count = int(match[1])
|
||||
proved_count = int(match[2])
|
||||
disproved_count = int(match[3])
|
||||
undecided_count = int(match[4])
|
||||
if (
|
||||
all_count == len(aiger_props) and
|
||||
all_count == proved_count + disproved_count + undecided_count and
|
||||
disproved_count == len(disproved) and
|
||||
not undecided_count
|
||||
):
|
||||
for i, prop in enumerate(aiger_props):
|
||||
if i not in disproved:
|
||||
prop.status = "PASS"
|
||||
|
||||
return line
|
||||
|
||||
def exit_callback(retcode):
|
||||
aigsmt_exit_callback(task, engine_idx, proc_status,
|
||||
run_aigsmt=run_aigsmt, smtbmc_vcd=smtbmc_vcd, smtbmc_append=smtbmc_append, sim_append=sim_append, )
|
||||
nonlocal procs_running
|
||||
if keep_going:
|
||||
procs_running -= 1
|
||||
if not procs_running:
|
||||
if proc_status == "FAIL" and mode == "bmc" and keep_going:
|
||||
task.pass_unknown_asserts(dict(source="abc pdr", keep_going=True, engine=f"engine_{engine_idx}"))
|
||||
task.update_status(proc_status)
|
||||
task.summary.set_engine_status(engine_idx, proc_status)
|
||||
task.terminate()
|
||||
else:
|
||||
aigsmt_exit_callback(task, engine_idx, proc_status,
|
||||
run_aigsmt=run_aigsmt, smtbmc_vcd=smtbmc_vcd, smtbmc_append=smtbmc_append, sim_append=sim_append)
|
||||
|
||||
proc.output_callback = output_callback
|
||||
proc.register_exit_callback(exit_callback)
|
||||
|
|
|
|||
|
|
@ -121,70 +121,107 @@ def run(mode, task, engine_idx, engine):
|
|||
|
||||
|
||||
def aigsmt_exit_callback(task, engine_idx, proc_status, *, run_aigsmt, smtbmc_vcd, smtbmc_append, sim_append):
|
||||
if proc_status is None:
|
||||
task.error(f"engine_{engine_idx}: Could not determine engine status.")
|
||||
if proc_status is None:
|
||||
task.error(f"engine_{engine_idx}: Could not determine engine status.")
|
||||
|
||||
task.update_status(proc_status)
|
||||
task.summary.set_engine_status(engine_idx, proc_status)
|
||||
task.terminate()
|
||||
task.update_status(proc_status)
|
||||
task.summary.set_engine_status(engine_idx, proc_status)
|
||||
task.terminate()
|
||||
if proc_status == "FAIL" and (not run_aigsmt or task.opt_aigsmt != "none"):
|
||||
aigsmt_trace_callback(task, engine_idx, proc_status, run_aigsmt=run_aigsmt, smtbmc_vcd=smtbmc_vcd, smtbmc_append=smtbmc_append, sim_append=sim_append)
|
||||
|
||||
if proc_status == "FAIL" and (not run_aigsmt or task.opt_aigsmt != "none"):
|
||||
trace_prefix = f"engine_{engine_idx}/trace"
|
||||
def aigsmt_trace_callback(task, engine_idx, proc_status, *, run_aigsmt, smtbmc_vcd, smtbmc_append, sim_append, name="trace"):
|
||||
|
||||
aiw2yw_suffix = '_aiw' if run_aigsmt else ''
|
||||
trace_prefix = f"engine_{engine_idx}/{name}"
|
||||
|
||||
witness_proc = SbyProc(
|
||||
task, f"engine_{engine_idx}", [],
|
||||
f"cd {task.workdir}; {task.exe_paths['witness']} aiw2yw engine_{engine_idx}/trace.aiw model/design_aiger.ywa engine_{engine_idx}/trace{aiw2yw_suffix}.yw",
|
||||
)
|
||||
yw_proc = witness_proc
|
||||
aiw2yw_suffix = '_aiw' if run_aigsmt else ''
|
||||
|
||||
if run_aigsmt:
|
||||
smtbmc_opts = []
|
||||
smtbmc_opts += ["-s", task.opt_aigsmt]
|
||||
if task.opt_tbtop is not None:
|
||||
smtbmc_opts += ["--vlogtb-top", task.opt_tbtop]
|
||||
smtbmc_opts += ["--noprogress", f"--append {smtbmc_append}"]
|
||||
if smtbmc_vcd:
|
||||
smtbmc_opts += [f"--dump-vcd {trace_prefix}.vcd"]
|
||||
smtbmc_opts += [f"--dump-yw {trace_prefix}.yw", f"--dump-vlogtb {trace_prefix}_tb.v", f"--dump-smtc {trace_prefix}.smtc"]
|
||||
witness_proc = SbyProc(
|
||||
task, f"engine_{engine_idx}", [],
|
||||
f"cd {task.workdir}; {task.exe_paths['witness']} aiw2yw engine_{engine_idx}/{name}.aiw model/design_aiger.ywa engine_{engine_idx}/{name}{aiw2yw_suffix}.yw",
|
||||
)
|
||||
final_proc = witness_proc
|
||||
|
||||
proc2 = SbyProc(
|
||||
task,
|
||||
f"engine_{engine_idx}",
|
||||
[*task.model("smt2"), witness_proc],
|
||||
f"cd {task.workdir}; {task.exe_paths['smtbmc']} {' '.join(smtbmc_opts)} --yw engine_{engine_idx}/trace{aiw2yw_suffix}.yw model/design_smt2.smt2",
|
||||
logfile=open(f"{task.workdir}/engine_{engine_idx}/logfile2.txt", "w")
|
||||
)
|
||||
if run_aigsmt:
|
||||
smtbmc_opts = []
|
||||
smtbmc_opts += ["-s", task.opt_aigsmt]
|
||||
if task.opt_tbtop is not None:
|
||||
smtbmc_opts += ["--vlogtb-top", task.opt_tbtop]
|
||||
smtbmc_opts += ["--noprogress", f"--append {smtbmc_append}"]
|
||||
if smtbmc_vcd:
|
||||
smtbmc_opts += [f"--dump-vcd {trace_prefix}.vcd"]
|
||||
smtbmc_opts += [f"--dump-yw {trace_prefix}.yw", f"--dump-vlogtb {trace_prefix}_tb.v", f"--dump-smtc {trace_prefix}.smtc"]
|
||||
|
||||
proc2_status = None
|
||||
proc2 = SbyProc(
|
||||
task,
|
||||
f"engine_{engine_idx}",
|
||||
[*task.model("smt2"), witness_proc],
|
||||
f"cd {task.workdir}; {task.exe_paths['smtbmc']} {' '.join(smtbmc_opts)} --yw engine_{engine_idx}/{name}{aiw2yw_suffix}.yw model/design_smt2.smt2",
|
||||
logfile=open(f"{task.workdir}/engine_{engine_idx}/logfile2.txt", "w"),
|
||||
)
|
||||
|
||||
def output_callback2(line):
|
||||
nonlocal proc2_status
|
||||
proc2_status = None
|
||||
|
||||
match = re.match(r"^## [0-9: ]+ Status: FAILED", line)
|
||||
if match: proc2_status = "FAIL"
|
||||
last_prop = []
|
||||
current_step = None
|
||||
|
||||
match = re.match(r"^## [0-9: ]+ Status: PASSED", line)
|
||||
if match: proc2_status = "PASS"
|
||||
def output_callback2(line):
|
||||
nonlocal proc2_status
|
||||
nonlocal last_prop
|
||||
nonlocal current_step
|
||||
|
||||
return line
|
||||
smt2_trans = {'\\':'/', '|':'/'}
|
||||
|
||||
def exit_callback2(retcode):
|
||||
if proc2_status is None:
|
||||
task.error(f"engine_{engine_idx}: Could not determine aigsmt status.")
|
||||
if proc2_status != "FAIL":
|
||||
task.error(f"engine_{engine_idx}: Unexpected aigsmt status.")
|
||||
if os.path.exists(f"{task.workdir}/engine_{engine_idx}/trace.vcd"):
|
||||
task.summary.add_event(engine_idx, trace="trace", path=f"engine_{engine_idx}/trace.vcd", type="$assert")
|
||||
match = re.match(r"^## [0-9: ]+ .* in step ([0-9]+)\.\.", line)
|
||||
if match:
|
||||
current_step = int(match[1])
|
||||
return line
|
||||
|
||||
proc2.output_callback = output_callback2
|
||||
proc2.register_exit_callback(exit_callback2)
|
||||
match = re.match(r"^## [0-9: ]+ Status: FAILED", line)
|
||||
if match: proc2_status = "FAIL"
|
||||
|
||||
yw_proc = proc2
|
||||
match = re.match(r"^## [0-9: ]+ Status: PASSED", line)
|
||||
if match: proc2_status = "PASS"
|
||||
|
||||
if task.opt_fst or (task.opt_vcd and task.opt_vcd_sim):
|
||||
sim_witness_trace(f"engine_{engine_idx}", task, engine_idx, f"engine_{engine_idx}/trace.yw", append=sim_append, deps=[yw_proc])
|
||||
match = re.match(r"^## [0-9: ]+ Assert failed in (\S+): (\S+)(?: \((\S+)\))?", line)
|
||||
if match:
|
||||
cell_name = match[3] or match[2]
|
||||
prop = task.design.hierarchy.find_property_by_cellname(cell_name, trans_dict=smt2_trans)
|
||||
prop.status = "FAIL"
|
||||
last_prop.append(prop)
|
||||
return line
|
||||
|
||||
else:
|
||||
task.log(f"{click.style(f'engine_{engine_idx}', fg='magenta')}: Engine did not produce a counter example.")
|
||||
match = re.match(r"^## [0-9: ]+ Writing trace to VCD file: (\S+)", line)
|
||||
if match:
|
||||
tracefile = match[1]
|
||||
trace = os.path.basename(tracefile)[:-4]
|
||||
task.summary.add_event(engine_idx=engine_idx, trace=trace, path=tracefile)
|
||||
|
||||
if match and last_prop:
|
||||
for p in last_prop:
|
||||
task.summary.add_event(
|
||||
engine_idx=engine_idx, trace=trace,
|
||||
type=p.celltype, hdlname=p.hdlname, src=p.location, step=current_step)
|
||||
p.tracefiles.append(tracefile)
|
||||
last_prop = []
|
||||
return line
|
||||
|
||||
return line
|
||||
|
||||
def exit_callback2(retcode):
|
||||
if proc2_status is None:
|
||||
task.error(f"engine_{engine_idx}: Could not determine aigsmt status.")
|
||||
if proc2_status != "FAIL":
|
||||
task.error(f"engine_{engine_idx}: Unexpected aigsmt status.")
|
||||
|
||||
proc2.output_callback = output_callback2
|
||||
proc2.register_exit_callback(exit_callback2)
|
||||
|
||||
final_proc = proc2
|
||||
|
||||
if task.opt_fst or (task.opt_vcd and task.opt_vcd_sim):
|
||||
final_proc = sim_witness_trace(f"engine_{engine_idx}", task, engine_idx, f"engine_{engine_idx}/{name}.yw", append=sim_append, deps=[final_proc])
|
||||
elif not run_aigsmt:
|
||||
task.log(f"{click.style(f'engine_{engine_idx}', fg='magenta')}: Engine did not produce a counter example.")
|
||||
|
||||
return final_proc
|
||||
|
|
|
|||
|
|
@ -12,6 +12,6 @@ def line_ref(dir, filename, pattern):
|
|||
for number, line in enumerate(file, 1):
|
||||
if pattern_re.search(line):
|
||||
# Needs to match source locations for both verilog frontends
|
||||
return fr"{filename}:(?:{number}|\d+.\d+-{number}.\d+)"
|
||||
return fr"{filename}:(?:{number}|\d+\.\d+-{number}\.\d+)"
|
||||
|
||||
raise RuntimeError("%s: pattern `%s` not found" % (filename, pattern))
|
||||
|
|
|
|||
|
|
@ -11,21 +11,34 @@ step_5 = line_ref(workdir, src, "step 5")
|
|||
step_7 = line_ref(workdir, src, "step 7")
|
||||
|
||||
log = open(workdir + "/logfile.txt").read()
|
||||
log_per_trace = log.split("Writing trace to Yosys witness file")[:-1]
|
||||
|
||||
if "_abc]" not in log:
|
||||
log_per_trace = log.split("Writing trace to Yosys witness file")[:-1]
|
||||
assert len(log_per_trace) == 4
|
||||
assert re.search(r"Assert failed in test: %s \(.*\)$" % assert_0, log_per_trace[0], re.M)
|
||||
|
||||
for i in range(1, 4):
|
||||
assert re.search(r"Assert failed in test: %s \(.*\) \[failed before\]$" % assert_0, log_per_trace[i], re.M)
|
||||
|
||||
|
||||
assert re.search(r"Assert failed in test: %s \(.*\)$" % step_3_7, log_per_trace[1], re.M)
|
||||
assert re.search(r"Assert failed in test: %s \(.*\)$" % step_5, log_per_trace[2], re.M)
|
||||
assert re.search(r"Assert failed in test: %s \(.*\) \[failed before\]$" % step_3_7, log_per_trace[3], re.M)
|
||||
assert re.search(r"Assert failed in test: %s \(.*\)$" % step_7, log_per_trace[3], re.M)
|
||||
|
||||
pattern = f"Property ASSERT in test at {assert_0} failed. Trace file: engine_0/trace0.(vcd|fst)"
|
||||
assert re.search(pattern, open(f"{workdir}/{workdir}.xml").read())
|
||||
|
||||
log_per_trace = log.split("summary: counterexample trace")[1:]
|
||||
assert len(log_per_trace) == 4
|
||||
|
||||
for i in range(4):
|
||||
assert re.search(r"failed assertion test\..* at %s" % assert_0, log_per_trace[i], re.M)
|
||||
|
||||
assert re.search(r"Assert failed in test: %s \(.*\)$" % assert_0, log_per_trace[0], re.M)
|
||||
step_3_7_traces = [i for i, t in enumerate(log_per_trace) if re.search(r"failed assertion test\..* at %s" % step_3_7, t, re.M)]
|
||||
step_5_traces = [i for i, t in enumerate(log_per_trace) if re.search(r"failed assertion test\..* at %s" % step_5, t, re.M)]
|
||||
step_7_traces = [i for i, t in enumerate(log_per_trace) if re.search(r"failed assertion test\..* at %s" % step_7, t, re.M)]
|
||||
|
||||
for i in range(1, 4):
|
||||
assert re.search(r"Assert failed in test: %s \(.*\) \[failed before\]$" % assert_0, log_per_trace[i], re.M)
|
||||
|
||||
|
||||
assert re.search(r"Assert failed in test: %s \(.*\)$" % step_3_7, log_per_trace[1], re.M)
|
||||
assert re.search(r"Assert failed in test: %s \(.*\)$" % step_5, log_per_trace[2], re.M)
|
||||
assert re.search(r"Assert failed in test: %s \(.*\) \[failed before\]$" % step_3_7, log_per_trace[3], re.M)
|
||||
assert re.search(r"Assert failed in test: %s \(.*\)$" % step_7, log_per_trace[3], re.M)
|
||||
|
||||
pattern = f"Property ASSERT in test at {assert_0} failed. Trace file: engine_0/trace0.(vcd|fst)"
|
||||
assert re.search(pattern, open(f"{workdir}/{workdir}.xml").read())
|
||||
assert len(step_3_7_traces) == 2
|
||||
assert len(step_5_traces) == 1
|
||||
assert len(step_7_traces) == 1
|
||||
|
|
|
|||
|
|
@ -1,6 +1,7 @@
|
|||
[tasks]
|
||||
bmc
|
||||
prove
|
||||
abc : prove
|
||||
|
||||
[options]
|
||||
bmc: mode bmc
|
||||
|
|
@ -8,7 +9,8 @@ prove: mode prove
|
|||
expect fail
|
||||
|
||||
[engines]
|
||||
smtbmc --keep-going boolector
|
||||
~abc: smtbmc --keep-going boolector
|
||||
abc: abc --keep-going pdr
|
||||
|
||||
[script]
|
||||
read -sv keepgoing_multi_step.sv
|
||||
|
|
|
|||
|
|
@ -18,5 +18,6 @@ module test (
|
|||
if (counter == 7) begin
|
||||
assert(a); // step 7
|
||||
end
|
||||
assert(1);
|
||||
end
|
||||
endmodule
|
||||
|
|
|
|||
Loading…
Reference in a new issue