fix casting long value

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

@@ -48,7 +48,7 @@ public class BiCreaterLowerBounds extends AbstractBoundaryBiCreater<AbstractGrow
       }
     }
     if (b1 instanceof LongBoundary) {
-      if ((long) b1.getLowerBound() + 1 == (int) b2.getLowerBound()
+      if ((long) b1.getLowerBound() + 1 == (long) b2.getLowerBound()
           && b1.getLowerBoundType() == EXCLUSIVE
           && b2.getLowerBoundType() == INCLUSIVE) {
         return Optional.empty();