private synchronized void countParameters(Users users, int numberOfUsers) {

        Plan plan = users.getPlan();
        int thrPerEngine = plan.getThreadsPerEngine();

        this.servers = count_servers(this.numberOfUsers, thrPerEngine);
        this.engineSize.setLength(0);
        this.engineSize.append(Constants.LARGE_ENGINE);
        this.numberOfUsers = re_count_users(numberOfUsers, this.servers);
        this.consoles = count_consoles(this.servers);
        this.engines = this.servers > 0 ? this.servers - this.consoles : 0;
        this.userPerEngine = this.servers > 0 ? this.numberOfUsers / this.servers : this.numberOfUsers;

    }