isVerilogResolvable() {
        var backupValues = [];
        for (let i = 0; i < this.nodeList.length; i++) {
            backupValues.push(this.nodeList[i].value);
            this.nodeList[i].value = undefined;
        }

        for (let i = 0; i < this.nodeList.length; i++) {
            if (this.nodeList[i].verilogLabel) {
                this.nodeList[i].value = 1;
            }
        }

        var res = this.isResolvable();

        for (let i = 0; i < this.nodeList.length; i++) {
            this.nodeList[i].value = backupValues[i];
        }

        return res;
    }
Helper Function to check if verilog resolvable
@return {boolean}