diff --git a/build.gradle b/build.gradle
index 40bf160ae8450589d027d7d434dc89c3f2e051ee..8ac771526db05a6503b03bf5bbe9335c5ec6e968 100644
--- a/build.gradle
+++ b/build.gradle
@@ -36,7 +36,6 @@ dependencies {
 
 
 	testCompile (group: 'junit', name: 'junit', version: '4.7')
-	testCompile (group: 'de.prob', name: 'tla2b', version: '1.0.4-SNAPSHOT')
     testCompile (group: 'de.prob', name: 'tla2bAST', version: '1.0.5-SNAPSHOT')
 
 	releaseJars (group: 'de.tla', name: 'tlatools', version: '1.0.0-SNAPSHOT')
diff --git a/src/test/java/de/tlc4b/analysis/NotSupportedTest.java b/src/test/java/de/tlc4b/analysis/NotSupportedTest.java
new file mode 100644
index 0000000000000000000000000000000000000000..e7e67a600cce7e176736fe7918ae797162e8f690
--- /dev/null
+++ b/src/test/java/de/tlc4b/analysis/NotSupportedTest.java
@@ -0,0 +1,16 @@
+package de.tlc4b.analysis;
+
+import static de.tlc4b.util.TestUtil.checkMachine;
+
+import org.junit.Test;
+
+import de.tlc4b.exceptions.NotSupportedException;
+
+public class NotSupportedTest {
+
+	@Test(expected = NotSupportedException.class)
+	public void testDuplicateSeenMachine() throws Exception {
+		String machine = "MACHINE test \n" + "SEES M1 \n" + "END";
+		checkMachine(machine);
+	}
+}
diff --git a/src/test/java/de/tlc4b/analysis/RenamerTest.java b/src/test/java/de/tlc4b/analysis/RenamerTest.java
index fbb1645886aa7588d0024dddbe5a504df2d63e88..40061430d2733f61aa5cdce272dcb96150b927c8 100644
--- a/src/test/java/de/tlc4b/analysis/RenamerTest.java
+++ b/src/test/java/de/tlc4b/analysis/RenamerTest.java
@@ -28,8 +28,8 @@ public class RenamerTest {
 
 		String expected = "---- MODULE test ----\n"
 				+ "VARIABLES WITH_1 \n"
-				+ "Inv == WITH_1 = 1\n"
-				+ "Init == WITH_1 = 1 \n"
+				+ "Invariant1 == WITH_1 = 1\n"
+				+ "Init == WITH_1 = 1 \n\n"
 				+ "Next == 1 = 2 /\\ UNCHANGED <<WITH_1>>\n"
 				+ "====";
 		compare(expected, machine);
@@ -47,7 +47,7 @@ public class RenamerTest {
 
 		String expected = "---- MODULE test ----\n"
 				+ "VARIABLES x \n"
-				+ "Inv == x = 1\n"
+				+ "Invariant1 == x = 1\n"
 				+ "Init == x = 1 \n"
 				+ "WITH_1 == x' = 2\n"
 				+ "Next == WITH_1 \n"
diff --git a/src/test/java/de/tlc4b/analysis/ScopeTest.java b/src/test/java/de/tlc4b/analysis/ScopeTest.java
index cf65a0f0f8c59abac7f961a6899293aa9f95cbbf..6c8802a4c230b80cf60f3fc4abc86181cb92c23d 100644
--- a/src/test/java/de/tlc4b/analysis/ScopeTest.java
+++ b/src/test/java/de/tlc4b/analysis/ScopeTest.java
@@ -15,12 +15,6 @@ public class ScopeTest {
 		checkMachine(machine);
 	}
 
-	@Test(expected = ScopeException.class)
-	public void testDuplicateSeenMachine() throws Exception {
-		String machine = "MACHINE test \n" + "SEES M1, M1 \n" + "END";
-		checkMachine(machine);
-	}
-
 	@Test(expected = ScopeException.class)
 	public void testConstraintsMissingMachineParameter() throws Exception {
 		String machine = "MACHINE test \n" + "CONSTRAINTS k = 1 \n" + "END";
diff --git a/src/test/java/de/tlc4b/prettyprint/OperationsTest.java b/src/test/java/de/tlc4b/prettyprint/OperationsTest.java
index da79ba87d9efb2009cc1b8de453846e59d3842a1..6c333f503188a87f15960f394cf8cf206832505e 100644
--- a/src/test/java/de/tlc4b/prettyprint/OperationsTest.java
+++ b/src/test/java/de/tlc4b/prettyprint/OperationsTest.java
@@ -18,7 +18,7 @@ public class OperationsTest {
 
 		String expected = "---- MODULE test ----\n"
 				+ "VARIABLES x \n"
-				+ "Inv == x = 1\n"
+				+ "Invariant1 == x = 1\n"
 				+ "Init == x = 1 \n"
 				+ "Next == 1 = 2 /\\ UNCHANGED <<x>>\n"
 				+ "====";
@@ -37,7 +37,7 @@ public class OperationsTest {
 
 		String expected = "---- MODULE test ----\n"
 				+ "VARIABLES x \n"
-				+ "Inv == x = 1\n"
+				+ "Invariant1 == x = 1\n"
 				+ "Init == x = 1 \n"
 				+ "foo == x' = 2\n"
 				+ "Next == foo \n"
diff --git a/src/test/java/de/tlc4b/prettyprint/SubstitutionsTest.java b/src/test/java/de/tlc4b/prettyprint/SubstitutionsTest.java
index e3d27dcbf84e7d3bca8e5315afb3008e150fbe4e..9a4946dd4e9bf156d4695a560dd63a250b159dd9 100644
--- a/src/test/java/de/tlc4b/prettyprint/SubstitutionsTest.java
+++ b/src/test/java/de/tlc4b/prettyprint/SubstitutionsTest.java
@@ -36,7 +36,7 @@ public class SubstitutionsTest {
 		String expected = "---- MODULE test ----\n"
 				+ "EXTENDS Naturals \n"
 				+ "VARIABLES x \n"
-				+ "Inv == x = 1\n"
+				+ "Invariant1 == x = 1\n"
 				+ "Init == \\E a \\in {1}, b \\in {2} : TRUE /\\ x = a + b \n"
 				+ "Next == 1 = 2 /\\ UNCHANGED <<x>>\n"
 				+ "====";
diff --git a/src/test/java/de/tlc4b/util/TestUtil.java b/src/test/java/de/tlc4b/util/TestUtil.java
index 607c7b8436faf90295352d91c43fc8febb01192c..4a16b11c402cda773c6eff5597475a9af120dd5e 100644
--- a/src/test/java/de/tlc4b/util/TestUtil.java
+++ b/src/test/java/de/tlc4b/util/TestUtil.java
@@ -11,14 +11,14 @@ import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.util.ArrayList;
 import java.util.Arrays;
-
-
-
-
 import java.util.List;
 
 import de.be4.classicalb.core.parser.exceptions.BException;
 import de.be4.classicalb.core.parser.node.Start;
+import de.tla2b.exceptions.FrontEndException;
+import de.tla2b.exceptions.TLA2BException;
+import de.tla2b.output.ASTPrettyPrinter;
+import de.tla2b.output.Renamer;
 import de.tlc4b.TLC4BGlobals;
 import de.tlc4b.Translator;
 import de.tlc4b.tlc.TLCResults.TLCResult;
@@ -28,7 +28,7 @@ public class TestUtil {
 	public static void compare(String expectedModule, String machine)
 			throws Exception {
 		TLC4BGlobals.setForceTLCToEvalConstants(false);
-		
+
 		Translator b2tlaTranslator = new Translator(machine);
 		b2tlaTranslator.translate();
 		System.out.println(b2tlaTranslator.getModuleString());
@@ -36,12 +36,17 @@ public class TestUtil {
 		 * create standard modules BBuildins
 		 */
 
-		String name = b2tlaTranslator.getMachineName();
-		StringBuilder sb1 = de.tla2b.translation.Tla2BTranslator
-				.translateString(name, b2tlaTranslator.getModuleString(), null);
-		StringBuilder sb2 = de.tla2b.translation.Tla2BTranslator
-				.translateString(name, expectedModule, null);
-		if (!sb2.toString().equals(sb1.toString())) {
+		String moduleName = b2tlaTranslator.getMachineName();
+		String str1 = translateTLA2B(moduleName,
+				b2tlaTranslator.getModuleString());
+
+		String str2 = translateTLA2B(moduleName, expectedModule);
+
+		// StringBuilder sb1 = de.tla2b.translation.Tla2BTranslator
+		// .translateString(name, b2tlaTranslator.getModuleString(), null);
+		// StringBuilder sb2 = de.tla2b.translation.Tla2BTranslator
+		// .translateString(name, expectedModule, null);
+		if (!str1.equals(str2)) {
 			// assertEquals(expected, actual);
 
 			fail("expected:\n" + expectedModule + "\nbut was:\n"
@@ -49,28 +54,39 @@ public class TestUtil {
 		}
 		// assertEquals(sb2.toString(), sb1.toString());
 	}
-	
-	
-	public static void compareLTL(String expectedModule, String machine, String ltlFormula)
-			throws Exception {
+
+	public static String translateTLA2B(String moduleName, String tlaString)
+			throws TLA2BException {
+		return de.tla2bAst.Translator.translateModuleString(moduleName,
+				tlaString, null);
+	}
+
+	public static String translateTLA2B(String moduleName, String tlaString,
+			String configString) throws TLA2BException {
+		return de.tla2bAst.Translator.translateModuleString(moduleName,
+				tlaString, configString);
+	}
+
+	public static void compareLTL(String expectedModule, String machine,
+			String ltlFormula) throws Exception {
 		Translator b2tlaTranslator = new Translator(machine, ltlFormula);
 		b2tlaTranslator.translate();
 		System.out.println(b2tlaTranslator.getModuleString());
 		String name = b2tlaTranslator.getMachineName();
-		de.tla2b.translation.Tla2BTranslator
-		.translateString(name, b2tlaTranslator.getModuleString(), null);
+		// de.tla2b.translation.Tla2BTranslator.translateString(name,
+		// b2tlaTranslator.getModuleString(), null);
 		assertEquals(expectedModule, b2tlaTranslator.getModuleString());
 	}
-	
-	public static void checkMachine(String machine)
-			throws Exception {
+
+	public static void checkMachine(String machine) throws Exception {
 		Translator b2tlaTranslator = new Translator(machine);
 		b2tlaTranslator.translate();
 		System.out.println(b2tlaTranslator.getModuleString());
 
 		String name = b2tlaTranslator.getMachineName();
-		de.tla2b.translation.Tla2BTranslator
-				.translateString(name, b2tlaTranslator.getModuleString(), null);
+		String str1 = translateTLA2B(name, b2tlaTranslator.getModuleString());
+		// de.tla2b.translation.Tla2BTranslator.translateString(name,
+		// b2tlaTranslator.getModuleString(), null);
 	}
 
 	public static void print(Start start) {
@@ -88,14 +104,18 @@ public class TestUtil {
 		System.out.println(b2tlaTranslator.getConfigString());
 
 		String name = b2tlaTranslator.getMachineName();
-		de.tla2b.translation.Tla2BTranslator
-				.translateString(name, b2tlaTranslator.getModuleString(),
-						b2tlaTranslator.getConfigString());
 		
+		//parse check
+		translateTLA2B(name, b2tlaTranslator.getModuleString(),
+				b2tlaTranslator.getConfigString());
+		// de.tla2b.translation.Tla2BTranslator.translateString(name,
+		// b2tlaTranslator.getModuleString(),
+		// b2tlaTranslator.getConfigString());
+
 		assertEquals(expectedModule, b2tlaTranslator.getModuleString());
 		assertEquals(expectedConfig, b2tlaTranslator.getConfigString());
 	}
-	
+
 	public static void compareConfig(String expectedModule,
 			String expectedConfig, String machine) throws Exception {
 		Translator b2tlaTranslator = new Translator(machine);
@@ -105,17 +125,17 @@ public class TestUtil {
 		System.out.println(b2tlaTranslator.getConfigString());
 
 		String name = b2tlaTranslator.getMachineName();
-		StringBuilder sb1 = de.tla2b.translation.Tla2BTranslator
-				.translateString(name, b2tlaTranslator.getModuleString(),
-						b2tlaTranslator.getConfigString());
-		StringBuilder sb2 = de.tla2b.translation.Tla2BTranslator
-				.translateString(name, expectedModule, expectedConfig);
-		if (!sb2.toString().equals(sb1.toString())) {
-			fail("expected:\n" + expectedModule + "\nbut was:\n"
-					+ b2tlaTranslator.getModuleString() + "\n\nexpected:\n"
-					+ expectedConfig + "\nbut was:\n"
-					+ b2tlaTranslator.getConfigString());
-		}
+		// StringBuilder sb1 = de.tla2b.translation.Tla2BTranslator
+		// .translateString(name, b2tlaTranslator.getModuleString(),
+		// b2tlaTranslator.getConfigString());
+		// StringBuilder sb2 = de.tla2b.translation.Tla2BTranslator
+		// .translateString(name, expectedModule, expectedConfig);
+		// if (!sb2.toString().equals(sb1.toString())) {
+		// fail("expected:\n" + expectedModule + "\nbut was:\n"
+		// + b2tlaTranslator.getModuleString() + "\n\nexpected:\n"
+		// + expectedConfig + "\nbut was:\n"
+		// + b2tlaTranslator.getConfigString());
+		// }
 	}
 
 	public static void compareEquals(String expected, String machine)
@@ -135,7 +155,8 @@ public class TestUtil {
 
 	public static TLCResult test(String[] args) throws IOException {
 		System.out.println("Starting JVM...");
-		final Process p = startJVM("", TLC4BTester.class.getCanonicalName(), args);
+		final Process p = startJVM("", TLC4BTester.class.getCanonicalName(),
+				args);
 		StreamGobbler stdOut = new StreamGobbler(p.getInputStream());
 		stdOut.start();
 		StreamGobbler errOut = new StreamGobbler(p.getErrorStream());
@@ -145,13 +166,13 @@ public class TestUtil {
 		} catch (InterruptedException e) {
 			e.printStackTrace();
 		}
-		
-		for (int i = stdOut.getLog().size()-1; i > 1 ; i--) {
+
+		for (int i = stdOut.getLog().size() - 1; i > 1; i--) {
 			String s = stdOut.getLog().get(i);
-			//System.out.println(s);
-			if(s.startsWith("Result:")){
+			// System.out.println(s);
+			if (s.startsWith("Result:")) {
 				String resultString = s.substring(s.indexOf(':') + 2);
-				resultString = resultString.replaceAll("\\s+","");
+				resultString = resultString.replaceAll("\\s+", "");
 				System.out.println(resultString);
 				return TLCResult.valueOf(resultString);
 			}
@@ -159,11 +180,7 @@ public class TestUtil {
 		System.out.println("No result found.");
 		return null;
 	}
-	
-	
-	
-	
-	
+
 	private static Process startJVM(final String optionsAsString,
 			final String mainClass, final String[] arguments)
 			throws IOException {
@@ -188,8 +205,6 @@ public class TestUtil {
 
 }
 
-
-
 class StreamGobbler extends Thread {
 	private InputStream is;
 	private ArrayList<String> log;
@@ -205,7 +220,7 @@ class StreamGobbler extends Thread {
 
 	public void run() {
 		try {
-			InputStreamReader isr =	new InputStreamReader(is, "UTF-8");
+			InputStreamReader isr = new InputStreamReader(is, "UTF-8");
 			BufferedReader br = new BufferedReader(isr);
 			String line = null;
 			while ((line = br.readLine()) != null) {
@@ -217,4 +232,3 @@ class StreamGobbler extends Thread {
 		}
 	}
 }
-