diff --git a/prism/src/prism/StateValuesDV.java b/prism/src/prism/StateValuesDV.java
index 8fc1aa37..875d09a0 100644
--- a/prism/src/prism/StateValuesDV.java
+++ b/prism/src/prism/StateValuesDV.java
@@ -84,24 +84,11 @@ public class StateValuesDV implements StateValues
 	 */
 	public StateValuesDV(DoubleVector values, Model model)
 	{
-		int i;
-
 		// store values vector
 		this.values = values;
 
 		// get info from model
-		this.model = model;
-		vars = model.getAllDDRowVars();
-		numVars = vars.n();
-		odd = model.getODD();
-		varList = model.getVarList();
-
-		// initialise arrays
-		varSizes = new int[varList.getNumVars()];
-		for (i = 0; i < varList.getNumVars(); i++) {
-			varSizes[i] = varList.getRangeLogTwo(i);
-		}
-		varValues = new int[varList.getNumVars()];
+		setModel(model);
 	}
 
 	/**
@@ -119,6 +106,23 @@ public class StateValuesDV implements StateValues
 		this(new DoubleVector(dd, model.getAllDDRowVars(), model.getODD()), model);
 	}
 
+	/** Helper method: Store information about the underlying model */
+	private void setModel(Model model)
+	{
+		this.model = model;
+		vars = model.getAllDDRowVars();
+		numVars = vars.n();
+		odd = model.getODD();
+		varList = model.getVarList();
+
+		// initialise arrays
+		varSizes = new int[varList.getNumVars()];
+		for (int i = 0; i < varList.getNumVars(); i++) {
+			varSizes[i] = varList.getRangeLogTwo(i);
+		}
+		varValues = new int[varList.getNumVars()];
+	}
+
 	// CONVERSION METHODS
 
 	@Override
diff --git a/prism/src/prism/StateValuesMTBDD.java b/prism/src/prism/StateValuesMTBDD.java
index b46ef20e..9855c0f9 100644
--- a/prism/src/prism/StateValuesMTBDD.java
+++ b/prism/src/prism/StateValuesMTBDD.java
@@ -79,12 +79,16 @@ public class StateValuesMTBDD implements StateValues
 	 */
 	public StateValuesMTBDD(JDDNode values, Model model)
 	{
-		int i;
-		
 		// store values vector mtbdd
 		this.values = values;
-		
+
 		// get info from model
+		setModel(model);
+	}
+
+	/** Helper method: Store information about the underlying model */
+	private void setModel(Model model)
+	{
 		this.model = model;
 		vars = model.getAllDDRowVars();
 		reach = model.getReach();
@@ -95,7 +99,7 @@ public class StateValuesMTBDD implements StateValues
 		
 		// initialise arrays
 		varSizes = new int[varList.getNumVars()];
-		for (i = 0; i < varList.getNumVars(); i++) {
+		for (int i = 0; i < varList.getNumVars(); i++) {
 			varSizes[i] = varList.getRangeLogTwo(i);
 		}
 		varValues = new int[varList.getNumVars()];