Implementing a game loop with interpolation

I am trying to implement the Game Loop interpolated found in this website http://www.gameprogblog.com/generic-game-loop/. Here is my implementation:

long frameRate = 50000000; 
int maxUpdates = 3; 
boolean yield = true; 

private long time =0; 

private long lastTime;
private long currentTime;

public static float interpolation;

public void gameLoop() {


    long nanoElapsed = tick();

    System.out.println(time + "t Framerate: " + frameRate + "t"
            + "Nanoelapsed: " + nanoElapsed + "t Interpolation: "
            + interpolation);

    time += nanoElapsed;
    int updateCount = 0;


    while (time >= frameRate && updateCount < maxUpdates) {
        game.update();
        updateCount++;
        time -= frameRate;
    }

    interpolation = getInterpolation();
    game.render();

}


long tick() {
    lastTime = currentTime;
    currentTime = TimeUtils.nanoTime();
    return currentTime - lastTime;
}

float getInterpolation() {
    return (float) ((double) time / (double) frameRate);
}

However I cannot figure out the problem I am having. I am logging most of the variables and for some reason the time variable is very big and does not stay in an acceptable range. It also decreases over time. I have spent a long time trying to figure out why and I’m now stuck. Any suggestions and help would be appreciated. Thanks