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# You can use 'from pyabc import *' and then not need the pyabc. prefix everywhere
import os
import pyabc
import abc_common
import tempfile
import shutil
import redirect
# A new command is just a function that accepts a list of string arguments
# The first argument is always the name of the command
# It MUST return an integer. -1: user quits, -2: error. Return 0 for success.
# a command that calls prove(1) and returns success
def prove_cmd(args):
result = abc_common.prove(1)
print result
return 0
# registers the command:
# The first argument is the function
# The second argument is the category (mainly for the ABC help command)
# The third argument is the new command name
# Keep the fourth argument 0, or consult with Alan
pyabc.add_abc_command(prove_cmd, "ZPython", "/prove", 0)
def read_cmd(args):
if len(args)==2:
abc_common.read_file_quiet(args[1])
else:
abc_common.read_file()
return 0
pyabc.add_abc_command(read_cmd, "ZPython", "/rf", 0)
def chdir_cmd(args):
os.chdir( args[1] )
return 0
pyabc.add_abc_command(chdir_cmd, "ZPython", "/cd", 0)
def pwd_cmd(args):
print os.getcwd()
return 0
pyabc.add_abc_command(pwd_cmd, "ZPython", "/pwd", 0)
def ls_cmd(args):
os.system("ls " + " ".join(args[1:]))
return 0
pyabc.add_abc_command(ls_cmd, "ZPython", "/ls", 0)
pushd_temp_stack = []
def pushdtemp_cmd(args):
tmpdir = tempfile.mkdtemp()
pushd_temp_stack.append( (os.getcwd(), tmpdir) )
os.chdir(tmpdir)
return 0
pyabc.add_abc_command(pushdtemp_cmd, "ZPython", "/pushdtemp", 0)
def popdtemp_cmd(args):
prev, temp = pushd_temp_stack.pop()
os.chdir(prev)
shutil.rmtree(temp, ignore_errors=True)
return 0
pyabc.add_abc_command(popdtemp_cmd, "ZPython", "/popdtemp", 0)
pushredirect_stack = []
def push_redirect_cmd(args):
fdout = redirect.start_redirect( redirect.null_file, sys.stdout)
pushredirect_stack.append( (sys.stdout, fdout) )
fderr = redirect.start_redirect( redirect.null_file, sys.stderr)
pushredirect_stack.append( (sys.stderr, fderr) )
return 0
pyabc.add_abc_command(push_redirect_cmd, "ZPython", "/pushredirect", 0)
def pop_redirect_cmd(args):
err, fderr = pushredirect_stack.pop()
redirect.end_redirect(err, fderr)
out, fdout = pushredirect_stack.pop()
redirect.end_redirect(out, fdout)
return 0
pyabc.add_abc_command(pop_redirect_cmd, "ZPython", "/popredirect", 0)
def print_aiger_result(args):
status = pyabc.prob_status()
if status==1:
print 0
elif status==0:
print 1
else:
print 2
return 0
pyabc.add_abc_command(print_aiger_result, "ZPython", "/print_aiger_result", 0)
def super_prove_aiger_cmd(args):
noisy = len(args)==2 and args[1]=='-n'
if not noisy:
pyabc.run_command('/pushredirect')
pyabc.run_command('/pushdtemp')
try:
result = abc_common.super_prove()
except:
result = None
if not noisy:
pyabc.run_command('/popdtemp')
pyabc.run_command('/popredirect')
if result=="SAT":
print 1
elif result=="UNSAT":
print 0
else:
print 2
return 0
pyabc.add_abc_command(super_prove_aiger_cmd, "ZPython", "/super_prove_aiger", 0)
def prove_one_by_one_cmd(args):
noisy = len(args)==2 and args[1]=='-n'
# switch to a temporary directory
pyabc.run_command('/pushdtemp')
# write a copy of the original file in the temporary directory
pyabc.run_command('w original_aig_file.aig')
# iterate through the ouptus
for po in range(0, pyabc.n_pos()):
if not noisy:
pyabc.run_command('/pushredirect')
# replace the nework with the cone of the current PO
pyabc.run_command( 'cone -O %d -s'%po )
# run super_prove
try:
result = abc_common.super_prove()
except:
result = 'UNKNOWN'
if not noisy:
pyabc.run_command('/popredirect')
print 'PO %d is %s'%(po, result)
# stop if the result is not UNSAT
if result != "UNSAT":
break
# read the original file for the next iteration
pyabc.run_command('r original_aig_file.aig')
# go back to the original directory
pyabc.run_command('/popdtemp')
return 0
pyabc.add_abc_command(prove_one_by_one_cmd, "ZPython", "/prove_one_by_one", 0)
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