Introduced setting for DFT approximation

Former-commit-id: 03a2c0ca0c

src/builder/ExplicitDFTModelBuilder.cpp

@@ -4,7 +4,7 @@
 #include <src/utility/constants.h>
 #include <src/utility/vector.h>
 #include <src/exceptions/UnexpectedException.h>
-#include "src/settings/modules/DebugSettings.h"
+#include "src/settings/modules/DFTSettings.h"
 #include "src/settings/SettingsManager.h"
 #include <map>
 
@@ -226,7 +226,7 @@ namespace storm {
                 STORM_LOG_ASSERT(nextBEPair.second == hasDependencies, "Failure due to dependencies does not match.");
                 STORM_LOG_TRACE("With the failure of: " << nextBE->name() << " [" << nextBE->id() << "] in " << mDft.getStateString(state));
                 
-                if (storm::settings::getModule<storm::settings::modules::DebugSettings>().isTestSet()) {
+                if (storm::settings::getModule<storm::settings::modules::DFTSettings>().computeApproximation()) {
                     if (!storm::utility::isZero(exitRate)) {
                     ValueType rate = nextBE->activeFailureRate();
                     ValueType div = rate / exitRate;

src/settings/modules/DFTSettings.cpp

@@ -21,6 +21,8 @@ namespace storm {
             const std::string DFTSettings::symmetryReductionOptionShortName = "symred";
             const std::string DFTSettings::modularisationOptionName = "modularisation";
             const std::string DFTSettings::disableDCOptionName = "disabledc";
+            const std::string DFTSettings::computeApproximationOptionName = "approximation";
+            const std::string DFTSettings::computeApproximationOptionShortName = "approx";
             const std::string DFTSettings::propExpectedTimeOptionName = "expectedtime";
             const std::string DFTSettings::propExpectedTimeOptionShortName = "mttf";
             const std::string DFTSettings::propProbabilityOptionName = "probability";
@@ -37,6 +39,7 @@ namespace storm {
                 this->addOption(storm::settings::OptionBuilder(moduleName, symmetryReductionOptionName, false, "Exploit symmetric structure of model.").setShortName(symmetryReductionOptionShortName).build());
                 this->addOption(storm::settings::OptionBuilder(moduleName, modularisationOptionName, false, "Use modularisation (not applicable for expected time).").build());
                 this->addOption(storm::settings::OptionBuilder(moduleName, disableDCOptionName, false, "Disable Dont Care propagation.").build());
+                this->addOption(storm::settings::OptionBuilder(moduleName, computeApproximationOptionName, false, "Compute an approximation.").setShortName(computeApproximationOptionShortName).build());
                 this->addOption(storm::settings::OptionBuilder(moduleName, propExpectedTimeOptionName, false, "Compute expected time of system failure.").setShortName(propExpectedTimeOptionShortName).build());
                 this->addOption(storm::settings::OptionBuilder(moduleName, propProbabilityOptionName, false, "Compute probability of system failure.").build());
                 this->addOption(storm::settings::OptionBuilder(moduleName, propTimeBoundOptionName, false, "Compute probability of system failure up to given timebound.").addArgument(storm::settings::ArgumentBuilder::createDoubleArgument("time", "The timebound to use.").addValidationFunctionDouble(storm::settings::ArgumentValidators::doubleGreaterValidatorExcluding(0.0)).build()).build());
@@ -67,6 +70,10 @@ namespace storm {
                 return this->getOption(disableDCOptionName).getHasOptionBeenSet();
             }
             
+            bool DFTSettings::computeApproximation() const {
+                return this->getOption(computeApproximationOptionName).getHasOptionBeenSet();
+            }
+            
             bool DFTSettings::usePropExpectedTime() const {
                 return this->getOption(propExpectedTimeOptionName).getHasOptionBeenSet();
             }

src/settings/modules/DFTSettings.h

@@ -57,6 +57,13 @@ namespace storm {
                  */
                 bool isDisableDC() const;
 
+                /*!
+                 * Retrieves whether the option to compute an approximation is set.
+                 *
+                 * @return True iff the option was set.
+                 */
+                bool computeApproximation() const;
+                
                 /*!
                  * Retrieves whether the property expected time should be used.
                  *
@@ -122,6 +129,8 @@ namespace storm {
                 static const std::string symmetryReductionOptionShortName;
                 static const std::string modularisationOptionName;
                 static const std::string disableDCOptionName;
+                static const std::string computeApproximationOptionName;
+                static const std::string computeApproximationOptionShortName;
                 static const std::string propExpectedTimeOptionName;
                 static const std::string propExpectedTimeOptionShortName;
                 static const std::string propProbabilityOptionName;