Fixed an issue with dropping unexplored states.

src/storm-pomdp/builder/BeliefMdpExplorer.h

@@ -368,7 +368,8 @@ namespace storm {
                 { // beliefIdToMdpStateMap
                     for (auto belIdToMdpStateIt = beliefIdToMdpStateMap.begin(); belIdToMdpStateIt != beliefIdToMdpStateMap.end();) {
                         if (relevantMdpStates.get(belIdToMdpStateIt->second)) {
-                            // Keep current entry and move on to the next one.
+                            // Translate current entry and move on to the next one.
+                            belIdToMdpStateIt->second = toRelevantStateIndexMap[belIdToMdpStateIt->second];
                             ++belIdToMdpStateIt;
                         } else {
                             STORM_LOG_ASSERT(!exploredBeliefIds.get(belIdToMdpStateIt->first), "Inconsistent exploration information: Unexplored MDPState corresponds to explored beliefId");
@@ -619,7 +620,7 @@ namespace storm {
                             return findRes->second;
                         }
                     }
-                    // At this poind we need to add a new MDP state
+                    // At this point we need to add a new MDP state
                     MdpStateType result = getCurrentNumberOfMdpStates();
                     assert(getCurrentNumberOfMdpStates() == mdpStateToBeliefIdMap.size());
                     mdpStateToBeliefIdMap.push_back(beliefId);