removed first condition to check also sublayers in case of CompositeElementSymbol and IOSymbol.

src/main/java/de/monticore/lang/monticar/cnnarch/caffe2generator/CNNArch2Caffe2.java

@@ -51,8 +51,7 @@ public class CNNArch2Caffe2 implements CNNArchGenerator{
     private boolean isSupportedLayer(ArchitectureElementSymbol element, LayerSupportChecker layerChecker){
         List<ArchitectureElementSymbol> constructLayerElemList;
 
-        //first part of if condition ensures that element is not an IOSymbol
-        if (element instanceof LayerSymbol && (element.getResolvedThis().get() instanceof CompositeElementSymbol)) {
+        if (element.getResolvedThis().get() instanceof CompositeElementSymbol) {
             constructLayerElemList = ((CompositeElementSymbol)element.getResolvedThis().get()).getElements();
             for (ArchitectureElementSymbol constructedLayerElement : constructLayerElemList) {
                 if (!isSupportedLayer(constructedLayerElement, layerChecker)) {

src/test/java/de/monticore/lang/monticar/cnnarch/caffe2generator/GenerationTest.java

@@ -136,8 +136,13 @@ public class GenerationTest extends AbstractSymtabTest{
     public void testMultipleOutputs() throws IOException, TemplateException {
         Log.getFindings().clear();
         String[] args = {"-m", "src/test/resources/valid_tests", "-r", "MultipleOutputs"};
+        exit.expectSystemExit();
+        exit.checkAssertionAfterwards(new Assertion() {
+            public void checkAssertion() {
+                assertTrue(Log.getFindings().size() == 2);
+            }
+        });
         CNNArch2Caffe2Cli.main(args);
-        assertTrue(Log.getFindings().size() == 3);
     }
 
     @Test