Beispiel #1
0
        /// <summary>
        /// Add new local variable
        /// </summary>
        /// <param name="name"></param>
        /// <param name="lower"></param>
        /// <param name="upper"></param>
        public void AddLocalVar(string name, int lower, int upper)
        {
            varList.AddNewVariable(name, lower, upper);
            int numBits = varList.GetNumberOfBits(name);

            CUDDNode vr, vc;
            CUDDVars rowVar = new CUDDVars();
            CUDDVars colVar = new CUDDVars();

            for (int j = 0; j < numBits; j++)
            {
                vr = CUDD.Var(numverOfBoolVars++);
                vc = CUDD.Var(numverOfBoolVars++);
                rowVar.AddVar(vr);
                colVar.AddVar(vc);
            }
            this.rowVars.Add(rowVar);
            this.colVars.Add(colVar);

            this.AllRowVars.AddVars(rowVar);
            this.AllRowVarsExceptSingleCopy.AddVars(rowVar);
            this.AllColVars.AddVars(colVar);

            // used for unchanged variable in transition.
            CUDDNode identity = CUDD.Constant(0);

            for (int i = lower; i <= upper; i++)
            {
                identity = CUDD.Matrix.SetMatrixElement(identity, rowVar, colVar, i - lower, i - lower, 1);
            }
            this.varIdentities.Add(identity);

            //
            CUDDNode expressionDD = CUDD.MINUS_INFINITY; CUDD.Ref(expressionDD);

            for (int i = lower; i <= upper; i++)
            {
                expressionDD = CUDD.Matrix.SetVectorElement(expressionDD, rowVar, i - lower, i);
            }
            this.variableEncoding.Add(expressionDD);

            //
            CUDD.Ref(identity);
            allRowVarRanges = CUDD.Function.And(allRowVarRanges, CUDD.Abstract.ThereExists(identity, colVar));

            CUDD.Ref(identity);
            colVarRanges.Add(CUDD.Abstract.ThereExists(identity, rowVar));
        }