def build_master_be_fsm():
"""
Creates the BE fsm from the Sexpr FSM. Currently the be_enc is a singleton
global private variable which is shared between all the BE FSMs.
If not previoulsy committed (because a boolean encoder was not available at
the time due to the use of coi) the determinization layer will be committed
to the be_encoder
:raises NuSMVBeEncNotInitializedError: if the global BeEnc singleton is not
initialized
"""
global __be_fsm
# raises the exception if necessary
be_enc = BeEnc.global_singleton_instance()
sym_table = be_enc.symbol_table
if _symb_table.SymbTable_get_layer(sym_table._ptr, "inlining") is not None:
# commits the determ layer if not previously committed
if not _baseenc.BaseEnc_layer_occurs(be_enc._ptr, "determ"):
_baseenc.BaseEnc_commit_layer(be_enc._ptr, "determ")
# commits the inlining layer if not previously committed
# note: I find this a little bit weird, but that's the way NuSMV proceeds
if not _baseenc.BaseEnc_layer_occurs(be_enc._ptr, "inlining"):
_baseenc.BaseEnc_commit_layer(be_enc._ptr, "inlining")
# actual fsm creation
__be_fsm = BeFsm.create_from_sexp(be_enc, glob.master_bool_sexp_fsm())
propdb = _prop.PropPkg_get_prop_database()
_prop.PropDb_master_set_be_fsm(propdb, __be_fsm._ptr);
def build_master_be_fsm():
"""
Creates the BE fsm from the Sexpr FSM. Currently the be_enc is a singleton
global private variable which is shared between all the BE FSMs.
If not previoulsy committed (because a boolean encoder was not available at
the time due to the use of coi) the determinization layer will be committed
to the be_encoder
:raises NuSMVBeEncNotInitializedError: if the global BeEnc singleton is not
initialized
"""
global __be_fsm
# raises the exception if necessary
be_enc = BeEnc.global_singleton_instance()
sym_table = be_enc.symbol_table
if _symb_table.SymbTable_get_layer(sym_table._ptr, "inlining") is not None:
# commits the determ layer if not previously committed
if not _baseenc.BaseEnc_layer_occurs(be_enc._ptr, "determ"):
_baseenc.BaseEnc_commit_layer(be_enc._ptr, "determ")
# commits the inlining layer if not previously committed
# note: I find this a little bit weird, but that's the way NuSMV proceeds
if not _baseenc.BaseEnc_layer_occurs(be_enc._ptr, "inlining"):
_baseenc.BaseEnc_commit_layer(be_enc._ptr, "inlining")
# actual fsm creation
__be_fsm = BeFsm.create_from_sexp(be_enc, glob.master_bool_sexp_fsm())
propdb = _prop.PropPkg_get_prop_database()
_prop.PropDb_master_set_be_fsm(propdb, __be_fsm._ptr);
def setUp(self):
init_nusmv()
load_from_file(tests.current_directory(__file__)+"/models/flipflops_trans_invar_fairness.smv")
go_bmc()
self.fsm = BeFsm.global_master_instance()
self.enc = self.fsm.encoding
def setUp(self):
init_nusmv()
glob.load(
tests.current_directory(__file__) +
"/models/flipflops_explicit_relation.smv")
go_bmc()
self._fsm = BeFsm.global_master_instance()
self._manager = self._fsm.encoding.manager
def test_master_be_fsm(self):
load(self.model())
flatten_hierarchy()
encode_variables()
build_boolean_model()
bmcglob.bmc_setup()
# may not provoke C assert failures
bmcglob.build_master_be_fsm()
self.assertEqual(bmcglob.master_be_fsm(), BeFsm.global_master_instance())
bmcglob.bmc_exit()
def master_be_fsm():
"""
:return: the boolean FSM in BE stored in the master prop.
:raises NuSMVBeFsmMasterInstanceNotInitializedError:
when the global BE FSM is null in the global properties database
(ie when coi is enabled).
"""
global __be_fsm
if __be_fsm is None:
__be_fsm = BeFsm.global_master_instance()
return __be_fsm
def master_be_fsm():
"""
:return: the boolean FSM in BE stored in the master prop.
:raises NuSMVBeFsmMasterInstanceNotInitializedError:
when the global BE FSM is null in the global properties database
(ie when coi is enabled).
"""
global __be_fsm
if __be_fsm is None:
__be_fsm = BeFsm.global_master_instance()
return __be_fsm
def test_master_be_fsm(self):
load(self.model())
flatten_hierarchy()
encode_variables()
build_boolean_model()
bmcglob.bmc_setup()
# may not provoke C assert failures
bmcglob.build_master_be_fsm()
self.assertEqual(bmcglob.master_be_fsm(),
BeFsm.global_master_instance())
bmcglob.bmc_exit()
def bmc_setup(force=False):
"""
Initializes the bmc sub-system, and builds the model in a Boolean Expression
format. This function must be called before the use of any other bmc-related
functionalities. Only one call per session is required.
If you don't intend to do anything special, you might consider using `go_bmc`
which is a shortcut for the whole bmc initialization process.
.. note::
This function is subject to the following requirements:
- a model must be loaded (:see:`glob.load`)
- hierarchy must already be flattened (:see:`glob.flatten_hierarchy)
- encoding must be already built (:see:`glob.encode_variables`)
- boolean model must be already built (:see:`glob.build_boolean_model`)
except if cone of influence is enabled and force is false
:param force: a flag telling whether or not the boolean model must exist
despite the cone of influence being enabled
:raises NuSMVNeedBooleanModelError: if the boolean model wasn't created
"""
# enforce preconditions
if not _compile.cmp_struct_get_build_bool_model(glob.global_compile_cmps()):
if not force and glob.is_cone_of_influence_enabled():
pass
else:
raise NuSMVNeedBooleanModelError("boolean model must be created")
if _compile.cmp_struct_get_bmc_setup(glob.global_compile_cmps()):
raise NuSMVBmcAlreadyInitializedError("Bmc sub system already set up")
# Build the vars manager, initializes the package and all sub packages,
# but only if not previously called.
_bmc.Bmc_Init()
build_master_be_fsm()
be_fsm = BeFsm.global_master_instance()
be_enc = be_fsm.encoding
bdd_enc = glob.bdd_encoding()
complete = _trc_exec.SATCompleteTraceExecutor_create(
be_fsm._ptr, be_enc._ptr, bdd_enc._ptr)
_trace.TraceManager_register_complete_trace_executor(
_trace.TracePkg_get_global_trace_manager(),
"sat", "SAT complete trace execution",
_trc_exec.SATCompleteTraceExecutor2completeTraceExecutor(complete))
partial_norestart = _trc_exec.SATPartialTraceExecutor_create(
be_fsm._ptr, be_enc._ptr, bdd_enc._ptr,False)
_trace.TraceManager_register_partial_trace_executor(
_trace.TracePkg_get_global_trace_manager(),
"sat", "SAT partial trace execution (no restart)",
_trc_exec.SATPartialTraceExecutor2partialTraceExecutor(partial_norestart))
partial_restarting= _trc_exec.SATPartialTraceExecutor_create(
be_fsm._ptr, be_enc._ptr, bdd_enc._ptr,True)
_trace.TraceManager_register_partial_trace_executor(
_trace.TracePkg_get_global_trace_manager(),
"sat_r", "SAT partial trace execution (restart)",
_trc_exec.SATPartialTraceExecutor2partialTraceExecutor(partial_restarting))
_compile.cmp_struct_set_bmc_setup(glob.global_compile_cmps())
def setUp(self):
init_nusmv()
load(self.model())
go_bmc()
self.fsm = BeFsm.global_master_instance()
def setUp(self):
init_nusmv()
glob.load(tests.current_directory(__file__) + "/models/flipflops_explicit_relation.smv")
go_bmc()
self._fsm = BeFsm.global_master_instance()
self._manager = self._fsm.encoding.manager
def bmc_setup(force=False):
"""
Initializes the bmc sub-system, and builds the model in a Boolean Expression
format. This function must be called before the use of any other bmc-related
functionalities. Only one call per session is required.
If you don't intend to do anything special, you might consider using `go_bmc`
which is a shortcut for the whole bmc initialization process.
.. note::
This function is subject to the following requirements:
- a model must be loaded (:func:`pynusmv.glob.load`)
- hierarchy must already be flattened (:func:`pynusmv.glob.flatten_hierarchy`)
- encoding must be already built (:func:`pynusmv.glob.encode_variables`)
- boolean model must be already built (:func:`pynusmv.glob.build_boolean_model`)
except if cone of influence is enabled and force is false
:param force: a flag telling whether or not the boolean model must exist
despite the cone of influence being enabled
:raises NuSMVNeedBooleanModelError: if the boolean model wasn't created
"""
# enforce preconditions
if not _compile.cmp_struct_get_build_bool_model(glob.global_compile_cmps()):
if not force and glob.is_cone_of_influence_enabled():
pass
else:
raise NuSMVNeedBooleanModelError("boolean model must be created")
if _compile.cmp_struct_get_bmc_setup(glob.global_compile_cmps()):
raise NuSMVBmcAlreadyInitializedError("Bmc sub system already set up")
# Build the vars manager, initializes the package and all sub packages,
# but only if not previously called.
_bmc.Bmc_Init()
build_master_be_fsm()
be_fsm = BeFsm.global_master_instance()
be_enc = be_fsm.encoding
bdd_enc = glob.bdd_encoding()
complete = _trc_exec.SATCompleteTraceExecutor_create(
be_fsm._ptr, be_enc._ptr, bdd_enc._ptr)
_trace.TraceManager_register_complete_trace_executor(
_trace.TracePkg_get_global_trace_manager(),
"sat", "SAT complete trace execution",
_trc_exec.SATCompleteTraceExecutor2completeTraceExecutor(complete))
partial_norestart = _trc_exec.SATPartialTraceExecutor_create(
be_fsm._ptr, be_enc._ptr, bdd_enc._ptr,False)
_trace.TraceManager_register_partial_trace_executor(
_trace.TracePkg_get_global_trace_manager(),
"sat", "SAT partial trace execution (no restart)",
_trc_exec.SATPartialTraceExecutor2partialTraceExecutor(partial_norestart))
partial_restarting= _trc_exec.SATPartialTraceExecutor_create(
be_fsm._ptr, be_enc._ptr, bdd_enc._ptr,True)
_trace.TraceManager_register_partial_trace_executor(
_trace.TracePkg_get_global_trace_manager(),
"sat_r", "SAT partial trace execution (restart)",
_trc_exec.SATPartialTraceExecutor2partialTraceExecutor(partial_restarting))
_compile.cmp_struct_set_bmc_setup(glob.global_compile_cmps())
def setUp(self):
init_nusmv()
load(self.model())
go_bmc()
self.fsm = BeFsm.global_master_instance()