Index: /Code/ModelTranslator/src/de/uni_hildesheim/sse/trans/convert/ModelOptimizer.java
===================================================================
--- /Code/ModelTranslator/src/de/uni_hildesheim/sse/trans/convert/ModelOptimizer.java	(revision 91)
+++ /Code/ModelTranslator/src/de/uni_hildesheim/sse/trans/convert/ModelOptimizer.java	(revision 92)
@@ -136,4 +136,10 @@
                 numRemoved++;
             }
+            
+            /*
+             *  Release constraint to deallocate memory.
+             *  set(index, null) avoids Array.copy
+             */
+            constraints.set(i, null);
         }