Investigating reasons for poor performance #19

Have identified the call to Automaton.minimise() from within the
Automaton.rewrite() method as a *major* time sink.  I'm not sure why
this call is needed, though things definitely do not work without it.

src/wyautl/core/Automaton.java

@@ -494,6 +494,7 @@ public int rewrite(int from, int to, int[] binding) {
 				}
 			}
 
+			// FIXME: see #19 about this as it needs to be eliminated.
 			minimise(binding);
 
 			return to >= 0 ? binding[to] : to;

src/wyrw/core/Reduction.java

@@ -89,7 +89,7 @@ private State probe(Automaton automaton) {
 		return new State(automaton, array);
 	}
 
-	public static class Activation extends AbstractActivation {
+	public final static class Activation extends AbstractActivation {
 
 		/**
 		 * The inference rule that this activation will apply.