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support for getting results for a particular state with symbolic model checking

refactoring
Sebastian Junges 5 years ago
parent
1ff8ba5fe5
commit
300902a5cd
3 changed files with 41 additions and 3 deletions
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  1. 25
      examples/analysis/02-analysis.py
  2. 9
      src/core/result.cpp
  3. 6
      src/storage/model.cpp

25
examples/analysis/02-analysis.py
View File

@ -5,6 +5,8 @@ import stormpy.examples
import stormpy.examples.files
from stormpy.storage import Expression
def example_analysis_02():
path = stormpy.examples.files.prism_dtmc_die
prism_program = stormpy.parse_prism_program(path)
@ -18,5 +20,28 @@ def example_analysis_02():
assert result.min == result.max
print(result.min)
# Create an auxiliary mapping to build expressions that matches some state.
variables = dict()
for m in prism_program.modules:
for v in m.integer_variables:
variables[v.name] = v.expression_variable.get_expression()
expr_manager = prism_program.expression_manager
expr_for_state_1 = Expression.And(Expression.Eq(variables["s"],expr_manager.create_integer(1)),
Expression.Eq(variables["d"],expr_manager.create_integer(0)))
expr_for_state_2 = Expression.And(Expression.Eq(variables["s"],expr_manager.create_integer(4)),
Expression.Eq(variables["d"],expr_manager.create_integer(0)))
result = stormpy.model_checking(model, properties[0])
cached_res = result.clone()
cached_res.filter(stormpy.create_filter_symbolic(model,expr_for_state_1))
print(cached_res.min)
result.filter(stormpy.create_filter_symbolic(model,expr_for_state_2))
assert result.min == result.max
print(result.min)
if __name__ == '__main__':
example_analysis_02()

9
src/core/result.cpp
View File

@ -18,6 +18,10 @@ std::shared_ptr<storm::modelchecker::QualitativeCheckResult> createFilterInitial
return std::make_unique<storm::modelchecker::SymbolicQualitativeCheckResult<DdType>>(model->getReachableStates(), model->getInitialStates());
}
template<storm::dd::DdType DdType, typename ValueType>
std::shared_ptr<storm::modelchecker::QualitativeCheckResult> createFilterSymbolic(std::shared_ptr<storm::models::symbolic::Model<DdType, ValueType>> model, storm::expressions::Expression const& expr) {
return std::make_unique<storm::modelchecker::SymbolicQualitativeCheckResult<DdType>>(model->getReachableStates(), model->getStates(expr));
}
// Define python bindings
void define_result(py::module& m) {
@ -82,6 +86,7 @@ void define_result(py::module& m) {
.def_property_readonly("scheduler", [](storm::modelchecker::ExplicitQuantitativeCheckResult<double> const& res) {return res.getScheduler();}, "get scheduler")
;
py::class_<storm::modelchecker::SymbolicQuantitativeCheckResult<storm::dd::DdType::Sylvan, double>, std::shared_ptr<storm::modelchecker::SymbolicQuantitativeCheckResult<storm::dd::DdType::Sylvan, double>>>(m, "SymbolicQuantitativeCheckResult", "Symbolic quantitative model checking result", quantitativeCheckResult)
.def("clone", [](storm::modelchecker::SymbolicQuantitativeCheckResult<storm::dd::DdType::Sylvan, double> const& dd) {return dd.clone()->asSymbolicQuantitativeCheckResult<storm::dd::DdType::Sylvan, double>(); })
;
py::class_<storm::modelchecker::HybridQuantitativeCheckResult<storm::dd::DdType::Sylvan, double>, std::shared_ptr<storm::modelchecker::HybridQuantitativeCheckResult<storm::dd::DdType::Sylvan, double>>>(m, "HybridQuantitativeCheckResult", "Hybrid quantitative model checking result", quantitativeCheckResult)
.def("get_values", &storm::modelchecker::HybridQuantitativeCheckResult<storm::dd::DdType::Sylvan, double>::getExplicitValueVector, "Get model checking result values for all states")
@ -95,6 +100,7 @@ void define_result(py::module& m) {
.def("get_values", [](storm::modelchecker::ExplicitQuantitativeCheckResult<storm::RationalNumber> const& res) { return res.getValueVector();}, "Get model checking result values for all states")
;
py::class_<storm::modelchecker::SymbolicQuantitativeCheckResult<storm::dd::DdType::Sylvan, storm::RationalNumber>, std::shared_ptr<storm::modelchecker::SymbolicQuantitativeCheckResult<storm::dd::DdType::Sylvan, storm::RationalNumber>>>(m, "SymbolicExactQuantitativeCheckResult", "Symbolic exact quantitative model checking result", quantitativeCheckResult)
.def("clone", [](storm::modelchecker::SymbolicQuantitativeCheckResult<storm::dd::DdType::Sylvan, storm::RationalNumber> const& dd) {return dd.clone()->asSymbolicQuantitativeCheckResult<storm::dd::DdType::Sylvan, storm::RationalNumber>(); })
;
py::class_<storm::modelchecker::HybridQuantitativeCheckResult<storm::dd::DdType::Sylvan, storm::RationalNumber>, std::shared_ptr<storm::modelchecker::HybridQuantitativeCheckResult<storm::dd::DdType::Sylvan, storm::RationalNumber>>>(m, "HybridExactQuantitativeCheckResult", "Symbolic exact hybrid quantitative model checking result", quantitativeCheckResult)
.def("get_values", &storm::modelchecker::HybridQuantitativeCheckResult<storm::dd::DdType::Sylvan, storm::RationalNumber>::getExplicitValueVector, "Get model checking result values for all states")
@ -108,12 +114,13 @@ void define_result(py::module& m) {
.def("get_values", [](storm::modelchecker::ExplicitQuantitativeCheckResult<storm::RationalFunction> const& res) { return res.getValueVector();}, "Get model checking result values for all states")
;
py::class_<storm::modelchecker::SymbolicQuantitativeCheckResult<storm::dd::DdType::Sylvan, storm::RationalFunction>, std::shared_ptr<storm::modelchecker::SymbolicQuantitativeCheckResult<storm::dd::DdType::Sylvan, storm::RationalFunction>>>(m, "SymbolicParametricQuantitativeCheckResult", "Symbolic parametric quantitative model checking result", quantitativeCheckResult)
.def("clone", [](storm::modelchecker::SymbolicQuantitativeCheckResult<storm::dd::DdType::Sylvan, storm::RationalFunction> const& dd) {return dd.clone()->asSymbolicQuantitativeCheckResult<storm::dd::DdType::Sylvan, storm::RationalFunction>(); })
;
py::class_<storm::modelchecker::HybridQuantitativeCheckResult<storm::dd::DdType::Sylvan, storm::RationalFunction>, std::shared_ptr<storm::modelchecker::HybridQuantitativeCheckResult<storm::dd::DdType::Sylvan, storm::RationalFunction>>>(m, "HybridParametricQuantitativeCheckResult", "Symbolic parametric hybrid quantitative model checking result", quantitativeCheckResult)
.def("get_values", &storm::modelchecker::HybridQuantitativeCheckResult<storm::dd::DdType::Sylvan, storm::RationalFunction>::getExplicitValueVector, "Get model checking result values for all states")
;
m.def("create_filter_symbolic", &createFilterSymbolic<storm::dd::DdType::Sylvan, double>, "Creates a filter for the given states and a symbolic model", py::arg("model"), py::arg("states"));
m.def("create_filter_initial_states_sparse", &createFilterInitialStatesSparse<double>, "Create a filter for the initial states on a sparse model", py::arg("model"));
m.def("create_filter_initial_states_symbolic", &createFilterInitialStatesSymbolic<storm::dd::DdType::Sylvan, double>, "Create a filter for the initial states on a symbolic model", py::arg("model"));

6
src/storage/model.cpp
View File

@ -304,6 +304,9 @@ void define_symbolic_model(py::module& m, std::string vt_suffix) {
// Models with double numbers
py::class_<SymbolicModel<DdType, double>, std::shared_ptr<SymbolicModel<DdType, double>>, ModelBase> model(m, ("_"+prefixClassName+"Model").c_str(), "A probabilistic model where transitions are represented by doubles and saved in a symbolic representation");
model.def_property_readonly("reward_models", [](SymbolicModel<DdType, double>& model) {return model.getRewardModels(); }, "Reward models")
.def_property_readonly("reachable_states", &SymbolicModel<DdType, double>::getReachableStates, "reachable states as DD")
.def_property_readonly("initial_states", &SymbolicModel<DdType, double>::getInitialStates, "initial states as DD")
.def("get_states", [](SymbolicModel<DdType, double> const& model, storm::expressions::Expression const& expr) {return model.getStates(expr);}, py::arg("expression"), "Get states that are described by the expression")
.def("reduce_to_state_based_rewards", &SymbolicModel<DdType, double>::reduceToStateBasedRewards)
.def("__str__", getModelInfoPrinter<double>())
;
@ -331,6 +334,9 @@ void define_symbolic_model(py::module& m, std::string vt_suffix) {
py::class_<SymbolicModel<DdType, RationalFunction>, std::shared_ptr<SymbolicModel<DdType, RationalFunction>>, ModelBase> modelRatFunc(m, ("_"+prefixParametricClassName+"Model").c_str(), "A probabilistic model where transitions are represented by rational functions and saved in a symbolic representation");
modelRatFunc.def("get_parameters", &SymbolicModel<DdType, RationalFunction>::getParameters, "Get parameters")
.def_property_readonly("reward_models", [](SymbolicModel<DdType, RationalFunction> const& model) {return model.getRewardModels(); }, "Reward models")
.def_property_readonly("reachable_states", &SymbolicModel<DdType, RationalFunction>::getReachableStates, "reachable states as DD")
.def_property_readonly("initial_states", &SymbolicModel<DdType, RationalFunction>::getInitialStates, "initial states as DD")
.def("get_states", [](SymbolicModel<DdType, RationalFunction> const& model, storm::expressions::Expression const& expr) {return model.getStates(expr);}, py::arg("expression"), "Get states that are described by the expression")
.def("reduce_to_state_based_rewards", &SymbolicModel<DdType, RationalFunction>::reduceToStateBasedRewards)
.def("__str__", getModelInfoPrinter<RationalFunction>("ParametricModel"))
;

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