Example #1
0
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);
Example #2
0
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);
Example #3
0
 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
Example #4
0
 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
Example #5
0
 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()
Example #6
0
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
Example #7
0
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
Example #8
0
 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()
Example #9
0
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())
Example #10
0
 def setUp(self):
     init_nusmv()
     load(self.model())
     go_bmc()
     self.fsm = BeFsm.global_master_instance()
Example #11
0
 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
Example #12
0
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())
Example #13
0
 def setUp(self):
     init_nusmv()
     load(self.model())
     go_bmc()
     self.fsm = BeFsm.global_master_instance()