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Added test cases for DFT approximation

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Matthias Volk 7 years ago
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2 changed files with 174 additions and 0 deletions
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  1. 71
      resources/examples/testfiles/dft/hecs_3_2_2_np.dft
  2. 103
      src/test/storm-dft/api/DftApproximationTest.cpp

71
resources/examples/testfiles/dft/hecs_3_2_2_np.dft
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103
src/test/storm-dft/api/DftApproximationTest.cpp
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#include "gtest/gtest.h"
#include "storm-config.h"
#include "storm-dft/api/storm-dft.h"
#include "storm-parsers/api/storm-parsers.h"
namespace {
// Configurations for DFT approximation
struct DftAnalysisConfig {
storm::builder::ApproximationHeuristic heuristic;
bool useSR;
};
class ApproxDepthConfig {
public:
typedef double ValueType;
static DftAnalysisConfig createConfig() {
return DftAnalysisConfig {storm::builder::ApproximationHeuristic::DEPTH, false};
}
};
class ApproxProbabilityConfig {
public:
typedef double ValueType;
static DftAnalysisConfig createConfig() {
return DftAnalysisConfig {storm::builder::ApproximationHeuristic::PROBABILITY, false};
}
};
class ApproxBoundDifferenceConfig {
public:
typedef double ValueType;
static DftAnalysisConfig createConfig() {
return DftAnalysisConfig {storm::builder::ApproximationHeuristic::BOUNDDIFFERENCE, false};
}
};
// General base class for testing of DFT approximation
template<typename TestType>
class DftApproximationTest : public ::testing::Test {
public:
typedef typename TestType::ValueType ValueType;
DftApproximationTest() : config(TestType::createConfig()) {
}
DftApproximationTest const& getConfig() const {
return config;
}
std::pair<double, double> analyzeMTTF(std::string const& file, double errorBound) {
std::shared_ptr<storm::storage::DFT<double>> dft = storm::api::loadDFTGalileoFile<double>(file);
EXPECT_TRUE(storm::api::isWellFormed(*dft));
std::string property = "T=? [F \"failed\"]";
std::vector<std::shared_ptr<storm::logic::Formula const>> properties = storm::api::extractFormulasFromProperties(storm::api::parseProperties(property));
typename storm::modelchecker::DFTModelChecker<double>::dft_results results = storm::api::analyzeDFTApprox<double>(*dft, properties, config.useSR, false, true, errorBound, config.heuristic, false);
return boost::get<storm::modelchecker::DFTModelChecker<double>::approximation_result>(results[0]);
}
std::pair<double, double> analyzeTimebound(std::string const& file, double timeBound, double errorBound) {
std::shared_ptr<storm::storage::DFT<double>> dft = storm::api::loadDFTGalileoFile<double>(file);
EXPECT_TRUE(storm::api::isWellFormed(*dft));
std::stringstream propertyStream;
propertyStream << "P=? [F<=" << timeBound << " \"failed\"]";
std::vector<std::shared_ptr<storm::logic::Formula const>> properties = storm::api::extractFormulasFromProperties(storm::api::parseProperties(propertyStream.str()));
typename storm::modelchecker::DFTModelChecker<double>::dft_results results = storm::api::analyzeDFTApprox<double>(*dft, properties, config.useSR, false, true, errorBound, config.heuristic, false);
return boost::get<storm::modelchecker::DFTModelChecker<double>::approximation_result>(results[0]);
}
private:
DftAnalysisConfig config;
};
typedef ::testing::Types<
ApproxDepthConfig,
ApproxProbabilityConfig,
ApproxBoundDifferenceConfig
> TestingTypes;
TYPED_TEST_CASE(DftApproximationTest, TestingTypes);
TYPED_TEST(DftApproximationTest, HecsMTTF) {
double errorBound = 2;
std::pair<double, double> approxResult = this->analyzeMTTF(STORM_TEST_RESOURCES_DIR "/dft/hecs_3_2_2_np.dft", errorBound);
EXPECT_LE(approxResult.first, 417.9436693);
EXPECT_GE(approxResult.second, 417.9436693);
EXPECT_LE(2*(approxResult.second - approxResult.first) / (approxResult.first + approxResult.second), errorBound);
// Ensure results are not equal -> not exact values were computed
EXPECT_GE(approxResult.second - approxResult.first, errorBound * approxResult.first / 10);
}
TYPED_TEST(DftApproximationTest, HecsTimebound) {
//double errorBound = 0.01;
double errorBound = 0.5;
double timeBound = 100;
std::pair<double, double> approxResult = this->analyzeTimebound(STORM_TEST_RESOURCES_DIR "/dft/hecs_3_2_2_np.dft", timeBound, errorBound);
EXPECT_LE(approxResult.first, 0.0410018417);
EXPECT_GE(approxResult.second, 0.0410018417);
EXPECT_LE(approxResult.second - approxResult.first, errorBound);
// Ensure results are not equal -> not exact values were computed
EXPECT_GE(approxResult.second - approxResult.first, errorBound / 10);
}
}
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