fixed issue when checking whether transition rewards can be lifted

src/storm-cli-utilities/model-handling.h

@@ -220,7 +220,7 @@ namespace storm {
         
         template <typename ValueType>
         std::shared_ptr<storm::models::ModelBase> buildModelSparse(SymbolicInput const& input, storm::settings::modules::BuildSettings const& buildSettings) {
-            storm::builder::BuilderOptions options(createFormulasToRespect(input.properties));
+            storm::builder::BuilderOptions options(createFormulasToRespect(input.properties), input.model.get());
             options.setBuildChoiceLabels(buildSettings.isBuildChoiceLabelsSet());
             options.setBuildStateValuations(buildSettings.isBuildStateValuationsSet());
             if (storm::settings::manager().hasModule(storm::settings::modules::CounterexampleGeneratorSettings::moduleName)) {

src/storm/logic/LiftableTransitionRewardsVisitor.cpp

@@ -120,14 +120,14 @@ namespace storm {
         }
         
         bool LiftableTransitionRewardsVisitor::rewardModelHasTransitionRewards(std::string const& rewardModelName) const {
-            if (symbolicModelDescription.isJaniModel()) {
-                return storm::jani::RewardModelInformation(symbolicModelDescription.asJaniModel(), rewardModelName).hasTransitionRewards();
-            } else if (symbolicModelDescription.isPrismProgram()) {
-                return symbolicModelDescription.asPrismProgram().getRewardModel(rewardModelName).hasTransitionRewards();
-            } else {
-                // No model given
-                return false;
+            if (symbolicModelDescription.hasModel()) {
+                if (symbolicModelDescription.isJaniModel()) {
+                    return storm::jani::RewardModelInformation(symbolicModelDescription.asJaniModel(), rewardModelName).hasTransitionRewards();
+                } else if (symbolicModelDescription.isPrismProgram()) {
+                    return symbolicModelDescription.asPrismProgram().getRewardModel(rewardModelName).hasTransitionRewards();
+                }
             }
+            return false;
         }
     }
 }