def solve(self, cnf):
s = Solution()
infile = NamedTemporaryFile(mode='w')
outfile = NamedTemporaryFile(mode='r')
io = DimacsCnf()
infile.write(io.tostring(cnf))
infile.flush()
ret = call(self.command % (infile.name, outfile.name), shell=True)
infile.close()
if ret != 10:
return s
s.success = True
lines = outfile.readlines()[1:]
for line in lines:
varz = line.split(" ")[:-1]
for v in varz:
v = v.strip()
value = v[0] != '-'
v = v.lstrip('-')
vo = io.varobj(v)
s.varmap[vo] = value
# Close deletes the tmp files
outfile.close()
return s
def solve(self, cnf):
s = Solution()
infile = NamedTemporaryFile(mode='w')
outfile = NamedTemporaryFile(mode='r')
io = DimacsCnf()
infile.write(io.tostring(cnf))
infile.flush()
ret = call(self.command % (infile.name, outfile.name), shell=True)
infile.close()
if ret != 10:
return s
s.success = True
lines = outfile.readlines()[1:]
for line in lines:
varz = line.split(" ")[:-1]
for v in varz:
v = v.strip()
value = v[0] != '-'
v = v.lstrip('-')
vo = io.varobj(v)
s.varmap[vo] = value
# Close deletes the tmp files
outfile.close()
return s
def solve(self, cnf):
s = Solution()
# NamedTemporaryFile doesn't work on Windows, see https://stackoverflow.com/questions/15169101/how-to-create-a-temporary-file-that-can-be-read-by-a-subprocess
infile, infilename = tempfile.mkstemp(suffix="cnf")
try:
io = DimacsCnf()
os.write(infile, io.tostring(cnf))
os.close(infile)
try:
cmd = self.command % (infilename.replace("\\", "/"))
check_output(cmd, stderr=STDOUT, shell=True)
# Lingeling and most SAT-solvers use a non-zero return code, which in most POSIX command indicates an error.
# That's why python raises an exception, but here it's expected
except CalledProcessError as call:
if call.returncode != 10 and call.returncode != 20:
s.error = call.output
return s
finally:
os.remove(infilename)
if call.returncode != 10:
return s
s.success = True
for line in call.output.split("\n"):
# Solution line example: v 1 -2 3 -4 5 6 0
if len(line) > 0 and line[0] == 'v':
varz = line.split(" ")[1:-1]
for v in varz:
v = v.strip()
value = v[0] != '-'
v = v.lstrip('-')
vo = io.varobj(v)
s.varmap[vo] = value
return s
def solve(self, cnf):
s = Solution()
# NamedTemporaryFile doesn't work on Windows, see https://stackoverflow.com/questions/15169101/how-to-create-a-temporary-file-that-can-be-read-by-a-subprocess
infile, infilename = tempfile.mkstemp(suffix="cnf")
try:
io = DimacsCnf()
os.write(infile, io.tostring(cnf))
os.close(infile)
try:
cmd = self.command % (infilename.replace("\\","/"))
check_output(cmd, stderr=STDOUT, shell=True)
# Lingeling and most SAT-solvers use a non-zero return code, which in most POSIX command indicates an error.
# That's why python raises an exception, but here it's expected
except CalledProcessError as call:
if call.returncode != 10 and call.returncode != 20:
s.error = call.output
return s
finally:
os.remove(infilename)
if call.returncode != 10:
return s
s.success = True
for line in call.output.split("\n"):
# Solution line example: v 1 -2 3 -4 5 6 0
if len(line) > 0 and line[0] == 'v':
varz = line.split(" ")[1:-1]
for v in varz:
v = v.strip()
value = v[0] != '-'
v = v.lstrip('-')
vo = io.varobj(v)
s.varmap[vo] = value
return s
def solve(self, cnf):
s = Solution()
with NamedTemporaryFile(mode='w') as infile, \
NamedTemporaryFile(mode='r') as outfile:
io = DimacsCnf()
infile.write(io.tostring(cnf))
infile.flush()
try:
output = check_output(
[self.command, infile.name, outfile.name],
universal_newlines=True, timeout=self.timeout)
except CalledProcessError as ex:
s.success = (ex.returncode == 10)
output = ex.output
s.stats = parse_stats(output)
if not s.success:
return s
lines = outfile.readlines()[1:]
for line in lines:
varz = line.split(" ")[:-1]
for v in varz:
v = v.strip()
value = v[0] != '-'
v = v.lstrip('-')
vo = io.varobj(v)
s.varmap[vo] = value
return s
