def __init__(self, log=None):
"Create a solver object."
self.tempfile = tempfile.TemporaryFile()
self.p = picosat.picosat_init()
picosat.picosat_set_verbosity(self.p, 100)
picosat.picosat_measure_all_calls(self.p)
self.f = picosat.picosat_set_output(self.p, self.tempfile)
self.decision_limit = -1
self.last_sat_result = None
def __call__(self, solver):
"""Handle Options"""
pico = solver.pico
if self.random_seed is not None:
picosat.picosat_set_seed(pico, self.random_seed)
if self.preprocessing is True:
picosat.picosat_set_plain(pico, 0)
else:
picosat.picosat_set_plain(pico, 1)
if self.propagation_limit is not None:
picosat.picosat_set_propagation_limit(pico, self.propagation_limit)
if self.more_important_lit is not None:
for x in self.more_important_lit:
lit = solver._get_var_id(x) #pylint: disable=protected-access
picosat.picosat_set_more_important_lit(pico, lit)
if self.less_important_lit is not None:
for x in self.less_important_lit:
lit = solver._get_var_id(x) #pylint: disable=protected-access
picosat.picosat_set_less_important_lit(pico, lit)
if self.global_default_phase is not None:
picosat.picosat_set_global_default_phase(pico,
self.global_default_phase)
if self.output is not None:
self._log_file_handler = picosat.picosat_set_output(
pico, self.output)
if self.enable_trace_generation:
rv = picosat.picosat_enable_trace_generation(pico)
if rv == 0:
raise PysmtValueError("Picosat: Cannot enable Trace"
" Generation")
if self.verbosity > 0:
picosat.picosat_set_verbosity(pico, self.verbosity)
def __call__(self, solver):
"""Handle Options"""
pico = solver.pico
if self.random_seed is not None:
picosat.picosat_set_seed(pico, self.random_seed)
if self.preprocessing is True:
picosat.picosat_set_plain(pico, 0)
else:
picosat.picosat_set_plain(pico, 1)
if self.propagation_limit is not None:
picosat.picosat_set_propagation_limit(pico,
self.propagation_limit)
if self.more_important_lit is not None:
for x in self.more_important_lit:
lit = solver._get_var_id(x) #pylint: disable=protected-access
picosat.picosat_set_more_important_lit(pico, lit)
if self.less_important_lit is not None:
for x in self.less_important_lit:
lit = solver._get_var_id(x) #pylint: disable=protected-access
picosat.picosat_set_less_important_lit(pico, lit)
if self.global_default_phase is not None:
picosat.picosat_set_global_default_phase(pico,
self.global_default_phase)
if self.output is not None:
self._log_file_handler = picosat.picosat_set_output(pico, self.output)
if self.enable_trace_generation:
rv = picosat.picosat_enable_trace_generation(pico)
if rv == 0: raise PysmtValueError("Picosat: Cannot enable Trace"
" Generation")
if self.verbosity > 0:
picosat.picosat_set_verbosity(pico, self.verbosity)
import picosat
with open("/tmp/log", "w") as fout:
p = picosat.picosat_init()
picosat.picosat_set_verbosity(p, 100)
f = picosat.picosat_set_output(p, fout)
picosat.picosat_measure_all_calls(p)
picosat.picosat_inc_max_var(p)
picosat.picosat_add(p, 1)
picosat.picosat_add(p, -1)
picosat.picosat_add(p, 0)
assert picosat.picosat_sat(p, -1) == picosat.PICOSAT_SATISFIABLE
picosat.picosat_message(p, 0, "End")
picosat.picosat_flushout(f)
picosat.picosat_reset(p)
print("Done.")