explicit.LTSNBAProduct: take atomic propositions of NBA into account

Without formula simplifications, jltl2ba will produce an APSet L0, L1, ...
With formula simplifications (upcoming commit), some APs can be missing
in the NBA (when irrelevant) or reordered (due to formula simplification).
We handle edge label construction as elsewhere in PRISM for DA, to take
this into account.


git-svn-id: https://www.prismmodelchecker.org/svn/prism/prism/trunk@11186 bbc10eb1-c90d-0410-af57-cb519fbb1720

prism/src/explicit/LTSNBAProduct.java

@@ -37,6 +37,7 @@ import prism.PrismLog;
 import common.IterableBitSet;
 import common.IterableStateSet;
 import jltl2ba.APElement;
+import jltl2ba.APSet;
 import jltl2dstar.NBA;
 import jltl2dstar.NBA_State;
 
@@ -214,6 +215,8 @@ public class LTSNBAProduct extends Product<Model>
 			}
 		}
 		
+		final APSet nbaAPSet = nba.getAPSet();
+
 		while (!todo.isEmpty()) {
 			int fromId = todo.pop();
 			if (expanded.get(fromId))
@@ -222,13 +225,9 @@ public class LTSNBAProduct extends Product<Model>
 			ProductState from = productIdToProductState.get(fromId);
 
 			// construct edge label from the labeling of the model state
-			APElement label = new APElement(labelBS.size());
-			for (int ap=0; ap < labelBS.size(); ap++) {
-				if (labelBS.get(ap).get(from.getModelState())) {
-					label.set(ap);
-				} else {
-					label.clear(ap);
-				}
+			APElement label = new APElement(nbaAPSet.size());
+			for (int k = 0; k < nbaAPSet.size(); k++) {
+				label.set(k, labelBS.get(Integer.parseInt(nbaAPSet.getAP(k).substring(1))).get(from.getModelState()));
 			}
 
 			// the current state in the NBA