From 85e6a903ba74a6e6fc209cfbc30c04e669da1d97 Mon Sep 17 00:00:00 2001
From: Dave Parker <dave.x.parker@gmail.com>
Date: Mon, 21 Dec 2015 16:14:15 +0000
Subject: [PATCH] Bug fix: Value iteration multi-objective was removing
 self-loops in situations where it should not be.

git-svn-id: https://www.prismmodelchecker.org/svn/prism/prism/trunk@11061 bbc10eb1-c90d-0410-af57-cb519fbb1720
---
 prism/src/prism/MultiObjModelChecker.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/prism/src/prism/MultiObjModelChecker.java b/prism/src/prism/MultiObjModelChecker.java
index e89b8abf..10d32de2 100644
--- a/prism/src/prism/MultiObjModelChecker.java
+++ b/prism/src/prism/MultiObjModelChecker.java
@@ -1087,7 +1087,7 @@ public class MultiObjModelChecker extends PrismComponent
 		//create a sparse matrix for transitions
 		JDDNode a = JDD.Apply(JDD.TIMES, modelProduct.getTrans(), modelProduct.getReach());
 
-		if (!min) {
+		if (!min && dimReward == 0) {
 			JDD.Ref(a);
 			JDDNode tmp = JDD.And(JDD.Equals(a, 1.0), JDD.Identity(modelProduct.getAllDDRowVars(), modelProduct.getAllDDColVars()));
 			a = JDD.ITE(tmp, JDD.Constant(0), a);