fixed bug in reward generation for PRISM models

Former-commit-id: 72399da7ed

src/generator/PrismNextStateGenerator.cpp

@@ -389,7 +389,7 @@ namespace storm {
                             if (rewardModel.get().hasStateActionRewards()) {
                                 for (auto const& stateActionReward : rewardModel.get().getStateActionRewards()) {
                                     if (stateActionReward.getActionIndex() == choice.getActionIndex() && evaluator.asBool(stateActionReward.getStatePredicateExpression())) {
-                                        stateActionRewardValue += ValueType(evaluator.asRational(stateActionReward.getRewardValueExpression())) * choice.getTotalMass();
+                                        stateActionRewardValue += ValueType(evaluator.asRational(stateActionReward.getRewardValueExpression()));
                                     }
                                 }
                             }

src/models/sparse/StandardRewardModel.cpp

@@ -67,8 +67,6 @@ namespace storm {
                 this->optionalStateRewardVector.get()[state] = newReward;
             }
 
-
-
             template<typename ValueType>
             bool StandardRewardModel<ValueType>::hasStateActionRewards() const {
                 return static_cast<bool>(this->optionalStateActionRewardVector);