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avr.py
executable file
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avr.py
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#!/usr/bin/env python
######################################################################################
# AVR: Abstractly Verifying Reachability
#
# Copyright (c) 2016 - Present Aman Goel and Karem Sakallah, University of Michigan.
# All rights reserved.
#
# Author: Aman Goel (amangoel@umich.edu), University of Michigan
######################################################################################
import os, sys
import subprocess
import argparse
import tempfile
import shutil
import ntpath
from distutils import spawn
import re
from distutils.spawn import find_executable
version=2.1
DEFAULT_TOP="-"
DEFAULT_BIN="build/bin"
DEFAULT_NAME="test"
DEFAULT_PROP_SELECT="-"
DEFAULT_INIT_FILE="-"
DEFAULT_OUT="output"
DEFAULT_YOSYS="deps/yosys"
DEFAULT_CLK="clk"
DEFAULT_TIMEOUT=3600
DEFAULT_MEMOUT=64000
DEFAULT_MEMORY=False
DEFAULT_SPLIT=True
DEFAULT_GRANULARITY=2
DEFAULT_RANDOM=False
DEFAULT_EFFORT_MININV=0
DEFAULT_VERBOSITY=0
DEFAULT_EN_VMT=False
DEFAULT_EN_JG=False
DEFAULT_EN_BTOR2=True
DEFAULT_ABTYPE="sa+uf"
DEFAULT_INTERPOLATION=0
DEFAULT_FORWARD_CHECK=0
DEFAULT_AB_LEVEL=2
DEFAULT_LAZY_ASSUME=0
DEFAULT_JG_PREPROCESS="-"
DEFAULT_PRINT_SMT2=False
DEFAULT_PRINT_WITNESS=False
DEFAULT_DOT="0000000"
DEFAULT_BMC_EN=False
DEFAULT_KIND_EN=False
DEFAULT_BMC_MAX_BOUND=1000
DEFAULT_CREATE_AIG=False
DEFAULT_PARSE_ONLY=False
def getopts(header):
p = argparse.ArgumentParser(description=str(header), formatter_class=argparse.RawDescriptionHelpFormatter)
p.add_argument('file', help='top file name', type=str)
p.add_argument('-t', '--top', help='top module name (default: autodetect)', type=str, default=DEFAULT_TOP)
p.add_argument('-p', '--property', help='select single property based on name (default: all asserts)', type=str, default=DEFAULT_PROP_SELECT)
p.add_argument('-i', '--init', help='init file for initial state (default: initial block)', type=str, default=DEFAULT_INIT_FILE)
p.add_argument('-n', '--name', help='<test-name> (default: %s)' % DEFAULT_NAME, type=str, default=DEFAULT_NAME)
p.add_argument('-o', '--out', help='<output-path> (default: %s)' % DEFAULT_OUT, type=str, default=DEFAULT_OUT)
p.add_argument('-b', '--bin', help='binary path (default: %s)' % DEFAULT_BIN, type=str, default=DEFAULT_BIN)
p.add_argument('-y', '--yosys', help='path to yosys installation (default: %s)' % DEFAULT_YOSYS, type=str, default=DEFAULT_YOSYS)
p.add_argument('--vmt', help='toggles using vmt frontend (default: %s)' % DEFAULT_EN_VMT, action="count", default=0)
p.add_argument('-j', '--jg', help='toggles using jg frontend (default: %s)' % DEFAULT_EN_JG, action="count", default=0)
p.add_argument('--bt', help='toggles using btor2 frontend (default: %s)' % DEFAULT_EN_BTOR2, action="count", default=0)
p.add_argument('--clock', help='clock signal name (default: %s)' % DEFAULT_CLK, type=str, default=DEFAULT_CLK)
p.add_argument('--timeout', help='timeout (CPU time) in seconds (default: %s)' % DEFAULT_TIMEOUT, type=int, default=DEFAULT_TIMEOUT)
p.add_argument('--memout', help='memory limit in mega bytes (default: %s)' % DEFAULT_MEMOUT, type=int, default=DEFAULT_MEMOUT)
p.add_argument('-a', '--abstract', help='abstraction type (options: sa, sa+uf) (default: %s)' % DEFAULT_ABTYPE, type=str, default=DEFAULT_ABTYPE)
p.add_argument('-m', '--memory', help='toggles using memory abstraction instead of simple expansion (default: %r)' % DEFAULT_MEMORY, action="count", default=0)
p.add_argument('-s', '--split', help='toggles transforming system by splitting variables at extract points (default: %r)' % DEFAULT_SPLIT, action="count", default=0)
p.add_argument('-g', '--granularity',help='abstract granularity level (between 0-2) (default: %r)' % DEFAULT_GRANULARITY, type=int, default=DEFAULT_GRANULARITY)
p.add_argument('-r', '--random', help='toggles using random ordering and random seed (default: %r)' % DEFAULT_RANDOM, action="count", default=0)
p.add_argument('-e', '--effort_mininv',help='inductive invariant minimization effort when property is proved true (between 0-4) (default: %r)' % DEFAULT_EFFORT_MININV, type=int, default=DEFAULT_EFFORT_MININV)
p.add_argument('--interpol', help='interpolation level (between 0-1) (default: %r)' % DEFAULT_INTERPOLATION, type=int, default=DEFAULT_INTERPOLATION)
p.add_argument('-f', '--forward', help='forward check level (between 0-2) (default: %r)' % DEFAULT_FORWARD_CHECK, type=int, default=DEFAULT_FORWARD_CHECK)
p.add_argument('-l', '--level', help='abstraction level (between 0-5) (default: %r)' % DEFAULT_AB_LEVEL, type=int, default=DEFAULT_AB_LEVEL)
p.add_argument('-la', '--lazy_assume', help='lazy assumptions level (between 0-2) (default: %r)' % DEFAULT_LAZY_ASSUME, type=int, default=DEFAULT_LAZY_ASSUME)
p.add_argument('--jgpre', help='preprocessing options for jg (default: %s)' % DEFAULT_JG_PREPROCESS, type=str, default=DEFAULT_JG_PREPROCESS)
p.add_argument('--smt2', help='toggles printing system in smt2 format (default: %r)' % DEFAULT_PRINT_SMT2, action="count", default=0)
p.add_argument('--witness', help='toggles printing witness (default: %r)' % DEFAULT_PRINT_WITNESS, action="count", default=0)
p.add_argument('--dot', help='option to configure dot files generation (default: %s)' % DEFAULT_DOT, type=str, default=DEFAULT_DOT)
p.add_argument('--bmc', help='toggles using bmc engine (default: %r)' % DEFAULT_BMC_EN, action="count", default=0)
p.add_argument('--kind', help='toggles using k-ind engine (default: %r)' % DEFAULT_KIND_EN, action="count", default=0)
p.add_argument('--aig', help='toggles synthesizing to aig (default: %r)' % DEFAULT_CREATE_AIG, action="count", default=0)
p.add_argument('--parse', help='toggles quitting after parsing (default: %r)' % DEFAULT_PARSE_ONLY, action="count", default=0)
p.add_argument('-k', '--kmax', help='max bound for bmc (default: %r)' % DEFAULT_BMC_MAX_BOUND, type=int, default=DEFAULT_BMC_MAX_BOUND)
p.add_argument('-v', '--verbosity', help='verbosity level (default: %r)' % DEFAULT_VERBOSITY, type=int, default=DEFAULT_VERBOSITY)
args, leftovers = p.parse_known_args()
return args, p.parse_args()
header="""
---
AVR
---
Abstractly Verifying Reachability
Reads a state transition system and performs property checking
using equality abstraction
Copyright (c) 2016 - Present Aman Goel <amangoel@umich.edu> and
Karem Sakallah <karem@umich.edu>, University of Michigan
Please report bugs and share your usage experience via email
(amangoel@umich.edu) or on github (https://github.com/aman-goel/avr)
-------------------
"""
short_header="""AVR
Copyright (c) 2016 - Present Aman Goel and Karem Sakallah, University of Michigan"""
def split_path(name):
head, tail = ntpath.split(name)
if not tail:
tail = ntpath.basename(head)
return head, tail
def main():
known, opts = getopts(header)
print(short_header)
if not os.path.isfile("build/avr"):
raise Exception("avr: main shell script not found")
if not os.path.isfile(opts.bin + "/vwn"):
raise Exception("avr: vwn binary not found")
if not os.path.isfile(opts.bin + "/dpa"):
raise Exception("avr: dpa binary not found")
if not os.path.isfile(opts.bin + "/reach"):
raise Exception("avr: reach binary not found")
if not os.path.exists(opts.out):
os.makedirs(opts.out)
path, f = split_path(opts.file)
if path == "":
path = "."
if not os.path.isfile(opts.file):
raise Exception("Unable to find top file: %s" % opts.file)
en_vmt = False
en_jg = False
en_bt = False
if opts.file.endswith('.btor2') or opts.file.endswith('.btor'):
en_bt = True
elif opts.file.endswith('.vmt') or opts.file.endswith('.smt2'):
en_vmt = True
elif opts.file.endswith('.wif'):
en_jg = True
elif not (opts.file.endswith('.v') or opts.file.endswith('.sv')):
en_vmt = DEFAULT_EN_VMT
if (opts.vmt % 2 == 1):
en_vmt = not DEFAULT_EN_VMT
en_jg = DEFAULT_EN_JG
if (opts.jg % 2 == 1):
en_jg = not DEFAULT_EN_JG
en_bt = DEFAULT_EN_BTOR2
if (opts.bt % 2 == 1):
en_bt = not DEFAULT_EN_BTOR2
print("\t(output dir: %s/work_%s)" % (opts.out, opts.name))
if (en_jg):
print("\t(frontend: jg)")
en_vmt = False
en_bt = False
elif en_vmt:
print("\t(frontend: vmt)")
en_bt = False
elif en_bt:
print("\t(frontend: btor2)")
else:
print("\t(frontend: yosys)")
if not os.path.isfile(opts.yosys + "/yosys"):
ys_path = find_executable('yosys')
if not ys_path:
if not os.path.isfile("/usr/local/bin/yosys"):
raise Exception("Please install yosys (check deps/build_deps.sh)")
else:
opts.yosys = "/usr/local/bin"
else:
if ys_path.endswith('/yosys'):
ys_path = ys_path[:-6]
opts.yosys = ys_path
print("\t(found yosys in %s)" % opts.yosys)
command = "./build/avr"
command = command + " " + f
command = command + " " + str(opts.top)
command = command + " " + path
command = command + " " + opts.name
command = command + " " + opts.out
command = command + " " + opts.bin
command = command + " " + opts.yosys
command = command + " " + opts.clock
command = command + " " + str(opts.timeout)
command = command + " " + str(opts.memout)
memory = DEFAULT_MEMORY
if (opts.memory % 2 == 1):
memory = not DEFAULT_MEMORY
command = command + " " + str(memory)
split = DEFAULT_SPLIT
if (opts.split % 2 == 1):
split = not DEFAULT_SPLIT
command = command + " " + str(split)
command = command + " " + str(opts.granularity)
random = DEFAULT_RANDOM
if (opts.random % 2 == 1):
random = not DEFAULT_RANDOM
command = command + " " + str(random)
command = command + " " + str(opts.verbosity)
p = opts.property.replace(" ", "%")
p = p.replace("\\", "\\\\")
command = command + " " + "\"" + str(p) + "\"";
# print(str(p))
command = command + " " + str(opts.effort_mininv)
command = command + " " + opts.init
command = command + " " + str(en_vmt)
command = command + " " + str(opts.abstract)
command = command + " " + str(en_jg)
command = command + " " + str(opts.interpol)
command = command + " " + str(opts.forward)
command = command + " " + str(opts.level)
command = command + " " + str(opts.lazy_assume)
command = command + " " + str(opts.jgpre)
print_smt2 = DEFAULT_PRINT_SMT2
if (opts.smt2 % 2 == 1):
print_smt2 = not DEFAULT_PRINT_SMT2
command = command + " " + str(print_smt2)
print_wit = DEFAULT_PRINT_WITNESS
if (opts.witness % 2 == 1):
print_wit = not DEFAULT_PRINT_WITNESS
command = command + " " + str(print_wit)
command = command + " " + str(opts.dot)
command = command + " " + str(en_bt)
bmc_en = DEFAULT_BMC_EN
if (opts.bmc % 2 == 1):
bmc_en = not DEFAULT_BMC_EN
command = command + " " + str(bmc_en)
kind_en = DEFAULT_KIND_EN
if (opts.kind % 2 == 1):
kind_en = not DEFAULT_KIND_EN
command = command + " " + str(kind_en)
command = command + " " + str(opts.kmax)
create_aig = DEFAULT_CREATE_AIG
if (opts.aig % 2 == 1):
create_aig = not DEFAULT_CREATE_AIG
command = command + " " + str(create_aig)
parse_only = DEFAULT_PARSE_ONLY
if (opts.parse % 2 == 1):
parse_only = not DEFAULT_PARSE_ONLY
command = command + " " + str(parse_only)
s = subprocess.call("exec " + command, shell=True)
if (s != 0):
raise Exception("avr ERROR: return code %d" % s)
if __name__ == '__main__':
main()