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84 lines
3.5 KiB
Python
84 lines
3.5 KiB
Python
#
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# SymbiYosys (sby) -- Front-end for Yosys-based formal verification flows
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#
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# Copyright (C) 2016 Clifford Wolf <clifford@clifford.at>
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#
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# Permission to use, copy, modify, and/or distribute this software for any
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# purpose with or without fee is hereby granted, provided that the above
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# copyright notice and this permission notice appear in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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#
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import re, os, getopt
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from sby_core import SbyTask
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def run(mode, job, engine_idx, engine):
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assert engine == ["abc", "bmc3"]
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task = SbyTask(job, "engine_%d" % engine_idx, job.model("aig"),
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("cd %s; yosys-abc -c 'read_aiger model/design_aiger.aig; fold; strash; bmc3 -F %d -v; " +
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"undc -c; write_cex -a engine_%d/trace.aiw'") % (job.workdir, job.opt_depth, engine_idx),
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logfile=open("%s/engine_%d/logfile.txt" % (job.workdir, engine_idx), "w"))
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task_status = None
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def output_callback(line):
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nonlocal task_status
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match = re.match(r"^Output [0-9]+ of miter .* was asserted in frame [0-9]+.", line)
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if match: task_status = "FAIL"
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match = re.match(r"^Stopping BMC because all 2\^[0-9]+ reachable states are visited.", line)
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if match: task_status = "PASS"
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match = re.match(r"^No output asserted in [0-9]+ frames.", line)
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if match: task_status = "PASS"
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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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job.status = task_status
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job.log("engine_%d: Status returned by engine: %s" % (engine_idx, task_status))
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job.summary.append("engine_%d (%s) returned %s" % (engine_idx, " ".join(engine), job.status))
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job.terminate()
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if job.status == "FAIL":
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task2 = SbyTask(job, "engine_%d" % engine_idx, job.model("smt2"),
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("cd %s; yosys-smtbmc --noprogress -t %d --dump-vcd engine_%d/trace.vcd --dump-vlogtb engine_%d/trace_tb.v " +
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"--dump-smtc engine_%d/trace.smtc --aig model/design_aiger.aim:engine_%d/trace.aiw --aig-noheader model/design_smt2.smt2") %
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(job.workdir, job.opt_depth, engine_idx, engine_idx, engine_idx, engine_idx),
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logfile=open("%s/engine_%d/logfile2.txt" % (job.workdir, engine_idx), "w"))
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task2_status = None
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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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def exit_callback2(line):
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assert task2_status is not None
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assert task2_status == "FAIL"
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job.summary.append("counterexample trace: %s/engine_%d/trace.vcd" % (job.workdir, engine_idx))
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task2.output_callback = output_callback2
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task2.exit_callback = exit_callback2
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task.output_callback = output_callback
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task.exit_callback = exit_callback
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