def _instantiate(spec_text):
section_by_name = parse_ltl(spec_text, logging.getLogger())
input_signals = [QuantifiedSignal('r', i) for i in range(nof_processes)]
output_signals = [QuantifiedSignal('g', i) for i in range(nof_processes)]
assumptions = section_by_name[PAR_ASSUMPTIONS]
guarantees = section_by_name[PAR_GUARANTEES]
inst_assumptions = list(
chain(
*
[_instantiate_expr2(a, nof_processes, False)
for a in assumptions]))
inst_guarantees = list(
chain(
*[_instantiate_expr2(g, nof_processes, False)
for g in guarantees]))
assumptions_as_strings = [
ConverterToWringVisitor().dispatch(a) + ';\n' for a in inst_assumptions
]
guarantees_as_strings = [
ConverterToWringVisitor().dispatch(g) + ';\n' for g in inst_guarantees
]
return input_signals, output_signals, assumptions_as_strings, guarantees_as_strings
def _get_spec(ltl_text: str, logger: Logger) -> (list, list, list, list):
#all the assumptions are conjugated together
#the guarantees are separated into different SpecProperty objects
data_by_section = par_parser.parse_ltl(ltl_text, logger)
if data_by_section is None:
return
assumptions = data_by_section[PAR_ASSUMPTIONS]
guarantees = data_by_section[PAR_GUARANTEES]
anon_inputs = [s.name for s in data_by_section[PAR_INPUT_VARIABLES]]
anon_outputs = [s.name for s in data_by_section[PAR_OUTPUT_VARIABLES]]
return anon_inputs, anon_outputs, assumptions, guarantees
def _get_spec(ltl_text:str, logger:Logger) -> (list, list, list, list):
#all the assumptions are conjugated together
#the guarantees are separated into different SpecProperty objects
data_by_section = par_parser.parse_ltl(ltl_text, logger)
if data_by_section is None:
return
assumptions = data_by_section[PAR_ASSUMPTIONS]
guarantees = data_by_section[PAR_GUARANTEES]
anon_inputs = [s.name for s in data_by_section[PAR_INPUT_VARIABLES]]
anon_outputs = [s.name for s in data_by_section[PAR_OUTPUT_VARIABLES]]
return anon_inputs, anon_outputs, assumptions, guarantees
def __init__(self, filename=None, content=None):
'''
Constructor
'''
try:
# read content
if filename is not None:
with open(filename, 'r') as fh:
content = fh.read()
assert(content is not None)
spec_dict = par_parser.parse_ltl(content, None)
# global system parameters
system_parameters = {t[0]: t[1] for t
in spec_dict[par_lexer_desc.PAR_GENERAL]}
self.__system_parameters = system_parameters
self.templates_count = int(
system_parameters[par_lexer_desc.PAR_GENERAL_TEMPLATE_COUNT])
self.templates = [Template(i)
for i in range(0, self.templates_count)]
# signals
for sig in spec_dict[par_lexer_desc.PAR_INPUT_VARIABLES]:
assert(type(sig.template_index) is int)
self.templates[sig.template_index].inputs.append(sig)
for sig in spec_dict[par_lexer_desc.PAR_OUTPUT_VARIABLES]:
self.templates[sig.template_index].outputs.append(sig)
# assumptions
self.assumptions = [Assumption(formula) for formula
in spec_dict[par_lexer_desc.PAR_ASSUMPTIONS]]
self.guarantees = [Guarantee(formula) for formula
in spec_dict[par_lexer_desc.PAR_GUARANTEES]]
# bound
self.bound = (0,) * self.templates_count
# cut-off
self.cutoff = (0,) * self.templates_count
except Exception as e:
raise SpecificationException("Error while reading "
"specification: %s" % e)
def _instantiate(spec_text):
section_by_name = parse_ltl(spec_text, logging.getLogger())
input_signals = [QuantifiedSignal('r', i) for i in range(nof_processes)]
output_signals = [QuantifiedSignal('g', i) for i in range(nof_processes)]
assumptions = section_by_name[PAR_ASSUMPTIONS]
guarantees = section_by_name[PAR_GUARANTEES]
inst_assumptions = list(chain(*[_instantiate_expr2(a, nof_processes, False)
for a in assumptions]))
inst_guarantees = list(chain(*[_instantiate_expr2(g, nof_processes, False)
for g in guarantees]))
assumptions_as_strings = [ConverterToWringVisitor().dispatch(a) + ';\n'
for a in inst_assumptions]
guarantees_as_strings = [ConverterToWringVisitor().dispatch(g) + ';\n'
for g in inst_guarantees]
return input_signals, output_signals, assumptions_as_strings, guarantees_as_strings
import parsing.par_parser as parser SIMPLE_SPEC = """ [GENERAL] templates: 2 [INPUT_VARIABLES] #no support of global variables => all the variables are assumed to be indexed! r_0;r_1; [OUTPUT_VARIABLES] g_0;g_1; [ASSUMPTIONS] Forall (i) r_0_i=0; Forall (i) G(F((r_0_i=0)+(g_0_i=0))); Forall (i) r_1_i=0; Forall (i) G(F((r_1_i=0)+(g_1_i=0))); [GUARANTEES] Forall (i) g_0_i=0; Forall (i) g_1_i=0; Forall (i,j) G(!((g_0_i=1) * (g_0_j=1))); Forall (i,j) G(!((g_0_i=1) * (g_1_j=1))); Forall (i,j) G(!((g_1_i=1) * (g_1_j=1))); """ # par_parser.bparser.parse(input=SIMPLE_SPEC) parser.parse_ltl(SIMPLE_SPEC, logging.getLogger())
