small bug fix

dmnverifierapi/src/main/java/de/unikoblenz/fgbks/base/utils/boundary/AbstractGrowingBoundary.java

@@ -208,7 +208,7 @@ public abstract class AbstractGrowingBoundary<T extends Comparable<? super T>>
       }
       sb.append(" ");
       sb.append(getUpperBound());
-    } else if (lowerBound.equals(getMaxValue())) {
+    } else if (upperBound.equals(getMaxValue())) {
       sb.append(">");
       if (getLowerBoundType() == INCLUSIVE) {
         sb.append("=");