Esempio n. 1
0
 private RTLExpression addClause(RTLExpression formula, RTLExpression clause) {
   if (formula != null) {
     return ExpressionFactory.createAnd(formula, clause);
   } else {
     return clause;
   }
 }
Esempio n. 2
0
  public RTLExpression getStateFormula(ValuationState state) {
    RTLExpression result = null;

    for (Iterator<Map.Entry<RTLVariable, AbstractDomainElement>> entryIt = state.variableIterator();
        entryIt.hasNext(); ) {
      Map.Entry<RTLVariable, AbstractDomainElement> entry = entryIt.next();
      RTLVariable var = entry.getKey();
      IntervalElement interval = (IntervalElement) entry.getValue();

      if (interval.size() == 1) {
        result =
            addClause(
                result,
                ExpressionFactory.createEqual(
                    var, ExpressionFactory.createNumber(interval.getLeft(), var.getBitWidth())));
      } else {
        if (!interval.leftOpen()) {
          result =
              addClause(
                  result,
                  ExpressionFactory.createLessOrEqual(
                      ExpressionFactory.createNumber(interval.getLeft(), var.getBitWidth()), var));
        }

        if (!interval.rightOpen()) {
          result =
              addClause(
                  result,
                  ExpressionFactory.createLessOrEqual(
                      var, ExpressionFactory.createNumber(interval.getRight(), var.getBitWidth())));
        }
      }
    }

    if (result == null) {
      result = ExpressionFactory.TRUE;
    }

    return result;
  }