public class Verifier
{
    public static final String EXAMPLE = "example.txt";
    public static final String MINUTE_BASE = "minute";

    public Verifier (boolean debug)
    {
        _debug = debug;
    }

    public final boolean verify ()
    {
        Grid theWorld = new Grid(EXAMPLE, _debug);
        Grid[] evolution = new Grid[4];

        if (_debug)
            System.out.println(theWorld);

        for (int i = 0; i < 4; i++)
        {
            evolution[i] = new Grid(MINUTE_BASE+""+(i+1)+".txt", _debug);
            theWorld.evolve();

            System.out.println("After "+(i+1)+" minute:");
            System.out.println(theWorld);

            if (!evolution[i].equals(theWorld))
                return false;
        }

        return true;
    }

    private boolean _debug;
}
@@ -127,16 +127,80 @@
 minute%22;
+%0A    public static final String DUPLICATE_LAYOUT = %22layout.txt%22;
 %0A%0A    pu
@@ -817,18 +817,437 @@
     
-return tru
+boolean found = false;%0A        Grid duplicate = new Grid(DUPLICATE_LAYOUT, _debug);%0A        Grid previous = theWorld.snapshot();%0A%0A        while (!found)%0A        %7B%0A            theWorld.evolve();%0A%0A            if (previous.equals(theWorld))%0A                found = true;%0A            else%0A                previous = theWorld.snapshot();%0A        %7D%0A%0A        if (previous.equals(duplicate))%0A            return true;%0A%0A        return fals
 e;%0A 

Update Verifier.java