diff --git a/interpreter/src/main/java/org/intocps/maestro/interpreter/Fmi2Interpreter.java b/interpreter/src/main/java/org/intocps/maestro/interpreter/Fmi2Interpreter.java
index 7af5b06a..cdadb765 100644
--- a/interpreter/src/main/java/org/intocps/maestro/interpreter/Fmi2Interpreter.java
+++ b/interpreter/src/main/java/org/intocps/maestro/interpreter/Fmi2Interpreter.java
@@ -500,7 +500,7 @@ public static FmuComponentValue getFmuComponentValue(BufferedOutputStream fmuLog
             Value v = fcargs.get(0).deref();
             Value sizeValue = fcargs.get(1);
 
-            if (v instanceof FmuComponentStateValue && sizeValue.isNumeric()) {
+            if (v instanceof FmuComponentStateValue && sizeValue.deref().isNumeric()) {
                 try {
                     FmuComponentStateValue stateValue = (FmuComponentStateValue) v;
                     FmuResult<Long> res = component.getSerializedFMUstateSize(stateValue.getModule());
@@ -567,7 +567,7 @@ public static FmuComponentValue getFmuComponentValue(BufferedOutputStream fmuLog
             Value sizeValue = fcargs.get(1).deref();
             Value stateValue = fcargs.get(2);
 
-            if (stateValue instanceof FmuComponentStateValue && sizeValue.isNumeric()) {
+            if ( sizeValue.isNumeric()) {
                 try {
                     NumericValue size = (NumericValue) sizeValue;
                     ArrayValue<ByteValue> byteArray = (ArrayValue<ByteValue>) bytesValue;
diff --git a/interpreter/src/main/java/org/intocps/maestro/interpreter/Interpreter.java b/interpreter/src/main/java/org/intocps/maestro/interpreter/Interpreter.java
index cc6244ce..4b77b814 100644
--- a/interpreter/src/main/java/org/intocps/maestro/interpreter/Interpreter.java
+++ b/interpreter/src/main/java/org/intocps/maestro/interpreter/Interpreter.java
@@ -202,7 +202,7 @@ public Value caseANotEqualBinaryExp(ANotEqualBinaryExp node, Context question) t
 
     public ArrayValue createArrayValue(List<PExp> sizes, PType type, Context question) throws AnalysisException {
         List<Value> arrayValues = new ArrayList<>();
-        for (int i = 0; i < ((NumericValue) sizes.get(0).apply(this, question)).intValue(); i++) {
+        for (int i = 0; i < ((NumericValue) sizes.get(0).apply(this, question).deref()).intValue(); i++) {
             if (sizes.size() > 1) {
                 List<PExp> nextSizes = sizes.subList(1, sizes.size());
                 // Call recursively
diff --git a/interpreter/src/main/java/org/intocps/maestro/interpreter/values/IntegerValue.java b/interpreter/src/main/java/org/intocps/maestro/interpreter/values/IntegerValue.java
index fe5f3299..f65674e8 100644
--- a/interpreter/src/main/java/org/intocps/maestro/interpreter/values/IntegerValue.java
+++ b/interpreter/src/main/java/org/intocps/maestro/interpreter/values/IntegerValue.java
@@ -48,6 +48,10 @@ public int compareTo(Value other) {
         if (other instanceof IntegerValue || other instanceof ByteValue || other instanceof ShortValue) {
             NumericValue io = (NumericValue) other;
             return (value < io.intValue() ? -1 : (value == io.intValue() ? 0 : 1));
+        }else if( other instanceof LongValue)
+        {
+            NumericValue io = (NumericValue) other;
+            return (value < io.longValue() ? -1 : (value == io.longValue() ? 0 : 1));
         }
 
         return super.compareTo(other);