diff --git a/de.hub.mse.ttc2020.benchmark/src/de/hub/mse/ttc2020/benchmark/AbstractBenchmarkTests.java b/de.hub.mse.ttc2020.benchmark/src/de/hub/mse/ttc2020/benchmark/AbstractBenchmarkTests.java
index 95ff48a..dbf6371 100644
--- a/de.hub.mse.ttc2020.benchmark/src/de/hub/mse/ttc2020/benchmark/AbstractBenchmarkTests.java
+++ b/de.hub.mse.ttc2020.benchmark/src/de/hub/mse/ttc2020/benchmark/AbstractBenchmarkTests.java
@@ -46,7 +46,10 @@ public abstract class AbstractBenchmarkTests {
 	protected static String pathScenario3 = "data/scenario3/";
 	protected static String pathScenario4 = "data/scenario4/";
 	
-	protected static ResourceSet resSet;
+	protected static ResourceSet resSet1;	
+	protected static ResourceSet resSet2;	
+	protected static ResourceSet resSet3;	
+	protected static ResourceSet resSet4;
 	
 	@BeforeClass
 	public static void init() throws CoreException {
@@ -61,7 +64,10 @@ public static void init() throws CoreException {
 			}
 		}
 
-		resSet = new ResourceSetImpl();
+		resSet1 = new ResourceSetImpl();
+		resSet2 = new ResourceSetImpl();
+		resSet3 = new ResourceSetImpl();
+		resSet4 = new ResourceSetImpl();
 
 		// Initialize EMF resource factories
 		Resource.Factory.Registry reg = Resource.Factory.Registry.INSTANCE;
@@ -73,7 +79,7 @@ public static void init() throws CoreException {
 		Logger.getRootLogger().setLevel(Level.OFF);
 	}
 	
-	protected EPackage getModel(String path) throws IOException {
+	protected EPackage getModel(String path, ResourceSet resSet) throws IOException {
 		Resource resource = resSet.getResource(URI.createURI(path), true);
 		resource.load(Collections.EMPTY_MAP);
 		EPackage model = (EPackage) resource.getContents().get(0);
@@ -81,11 +87,19 @@ protected EPackage getModel(String path) throws IOException {
 		return model;
 	}
 
-	protected EObject getInstance(String path) throws IOException {
+	protected EObject getInstance(String path, ResourceSet resSet) throws IOException {
 		Resource resource = resSet.getResource(URI.createURI(path), true);
 		resource.load(Collections.EMPTY_MAP);
 		return resource.getContents().get(0);
 	}
+	
+	protected EPackage getModel(String path) throws IOException {
+		return getModel(path, resSet1);
+	}
+
+	protected EObject getInstance(String path) throws IOException {
+		return getInstance(path, resSet1);
+	}
 
 	protected boolean isEqual(EObject out, EObject expout) {
 		// Configure EMF Compare
diff --git a/de.hub.mse.ttc2020.benchmark/src/de/hub/mse/ttc2020/benchmark/PerformanceTests.java b/de.hub.mse.ttc2020.benchmark/src/de/hub/mse/ttc2020/benchmark/PerformanceTests.java
index da14fe8..b543736 100644
--- a/de.hub.mse.ttc2020.benchmark/src/de/hub/mse/ttc2020/benchmark/PerformanceTests.java
+++ b/de.hub.mse.ttc2020.benchmark/src/de/hub/mse/ttc2020/benchmark/PerformanceTests.java
@@ -21,45 +21,45 @@ public class PerformanceTests extends AbstractBenchmarkTests {
 	@Test
 	public void testPerformance() throws IOException {
 		// TASK 1
-		EPackage task1_model1 = getModel(pathScenario1 + "models/V1.ecore");
-		EPackage task1_model2 = getModel(pathScenario1 + "models/V2.ecore");
-		EObject task1_inputV1a = getInstance(pathScenario1 + "instances/input/V1a.xmi");
-		EObject task1_inputV1b = getInstance(pathScenario1 + "instances/input/V1b.xmi");
-		EObject task1_inputV2a = getInstance(pathScenario1 + "instances/input/V2a.xmi");
-		EObject task1_inputV2b = getInstance(pathScenario1 + "instances/input/V2b.xmi");
+		EPackage task1_model1 = getModel(pathScenario1 + "models/V1.ecore", resSet1);
+		EPackage task1_model2 = getModel(pathScenario1 + "models/V2.ecore", resSet1);
+		EObject task1_inputV1a = getInstance(pathScenario1 + "instances/input/V1a.xmi", resSet1);
+		EObject task1_inputV1b = getInstance(pathScenario1 + "instances/input/V1b.xmi", resSet1);
+		EObject task1_inputV2a = getInstance(pathScenario1 + "instances/input/V2a.xmi", resSet1);
+		EObject task1_inputV2b = getInstance(pathScenario1 + "instances/input/V2b.xmi", resSet1);
 
 		AbstractTask task1_1_2_1 = taskFactory.createTask(TaskInfo.TASK_1_M1_M2_M1, task1_model1, task1_model2);
 		AbstractTask task1_2_1_2 = taskFactory.createTask(TaskInfo.TASK_1_M2_M1_M2, task1_model1, task1_model2);
 
 		// TASK 2
-		EPackage task2_model1 = getModel(pathScenario2 + "models/V1.ecore");
-		EPackage task2_model2 = getModel(pathScenario2 + "models/V2.ecore");
-		EObject task2_inputV1a = getInstance(pathScenario2 + "instances/input/V1a.xmi");
-		EObject task2_inputV1b = getInstance(pathScenario2 + "instances/input/V1b.xmi");
-		EObject task2_inputV2a = getInstance(pathScenario2 + "instances/input/V2a.xmi");
-		EObject task2_inputV2b = getInstance(pathScenario2 + "instances/input/V2b.xmi");
+		EPackage task2_model1 = getModel(pathScenario2 + "models/V1.ecore", resSet2);
+		EPackage task2_model2 = getModel(pathScenario2 + "models/V2.ecore", resSet2);
+		EObject task2_inputV1a = getInstance(pathScenario2 + "instances/input/V1a.xmi", resSet2);
+		EObject task2_inputV1b = getInstance(pathScenario2 + "instances/input/V1b.xmi", resSet2);
+		EObject task2_inputV2a = getInstance(pathScenario2 + "instances/input/V2a.xmi", resSet2);
+		EObject task2_inputV2b = getInstance(pathScenario2 + "instances/input/V2b.xmi", resSet2);
 
 		AbstractTask task2_1_2_1 = taskFactory.createTask(TaskInfo.TASK_2_M1_M2_M1, task2_model1, task2_model2);
 		AbstractTask task2_2_1_2 = taskFactory.createTask(TaskInfo.TASK_2_M2_M1_M2, task2_model1, task2_model2);
 
 		// TASK 3
-		EPackage task3_model1 = getModel(pathScenario3 + "models/V1.ecore");
-		EPackage task3_model2 = getModel(pathScenario3 + "models/V2.ecore");
-		EObject task3_inputV1a = getInstance(pathScenario3 + "instances/input/V1a.xmi");
-		EObject task3_inputV1b = getInstance(pathScenario3 + "instances/input/V1b.xmi");
-		EObject task3_inputV2a = getInstance(pathScenario3 + "instances/input/V2a.xmi");
-		EObject task3_inputV2b = getInstance(pathScenario3 + "instances/input/V2b.xmi");
+		EPackage task3_model1 = getModel(pathScenario3 + "models/V1.ecore", resSet3);
+		EPackage task3_model2 = getModel(pathScenario3 + "models/V2.ecore", resSet3);
+		EObject task3_inputV1a = getInstance(pathScenario3 + "instances/input/V1a.xmi", resSet3);
+		EObject task3_inputV1b = getInstance(pathScenario3 + "instances/input/V1b.xmi", resSet3);
+		EObject task3_inputV2a = getInstance(pathScenario3 + "instances/input/V2a.xmi", resSet3);
+		EObject task3_inputV2b = getInstance(pathScenario3 + "instances/input/V2b.xmi", resSet3);
 
 		AbstractTask task3_1_2_1 = taskFactory.createTask(TaskInfo.TASK_3_M1_M2_M1, task3_model1, task3_model2);
 		AbstractTask task3_2_1_2 = taskFactory.createTask(TaskInfo.TASK_3_M2_M1_M2, task3_model1, task3_model2);
 
 		// TASK 4
-		EPackage task4_model1 = getModel(pathScenario4 + "models/V1.ecore");
-		EPackage task4_model2 = getModel(pathScenario4 + "models/V2.ecore");
-		EObject task4_inputV1a = getInstance(pathScenario4 + "instances/input/V1a.xmi");
-		EObject task4_inputV1b = getInstance(pathScenario4 + "instances/input/V1b.xmi");
-		EObject task4_inputV2a = getInstance(pathScenario4 + "instances/input/V2a.xmi");
-		EObject task4_inputV2b = getInstance(pathScenario4 + "instances/input/V2b.xmi");
+		EPackage task4_model1 = getModel(pathScenario4 + "models/V1.ecore", resSet4);
+		EPackage task4_model2 = getModel(pathScenario4 + "models/V2.ecore", resSet4);
+		EObject task4_inputV1a = getInstance(pathScenario4 + "instances/input/V1a.xmi", resSet4);
+		EObject task4_inputV1b = getInstance(pathScenario4 + "instances/input/V1b.xmi", resSet4);
+		EObject task4_inputV2a = getInstance(pathScenario4 + "instances/input/V2a.xmi", resSet4);
+		EObject task4_inputV2b = getInstance(pathScenario4 + "instances/input/V2b.xmi", resSet4);
 
 		AbstractTask task4_1_2_1 = taskFactory.createTask(TaskInfo.TASK_4_M1_M2_M1, task4_model1, task4_model2);
 		AbstractTask task4_2_1_2 = taskFactory.createTask(TaskInfo.TASK_4_M2_M1_M2, task4_model1, task4_model2);