Hello,

I've been playing with the steady state evolution features of ECJ.
One of my steady state experiments reached my checkpoint modulo of
100, and began repeatedly re-writing the checkpoint file, like this:

Generation 99
Checkpointing
Wrote out checkpoint file experiment129.100.gz
Generation 100
Checkpointing
Wrote out checkpoint file experiment129.100.gz
Checkpointing
Wrote out checkpoint file experiment129.100.gz
Checkpointing
Wrote out checkpoint file experiment129.100.gz
Checkpointing
Wrote out checkpoint file experiment129.100.gz
Checkpointing
Wrote out checkpoint file experiment129.100.gz
Checkpointing
...etc...

Inspecting ec.steadystate.SteadyStateEvolutionState, I noticed this
line:

// CHECKPOINTING
         if (checkpoint && generation%checkpointModulo == 0)

I reasoned that "generation" is only incremented during generation
boundaries, which for steady state occurs when the number of
evaluations reaches some multiple of the population size. Thus, the
checkpointing will continue unnecessarily until the next generation
boundary is reached.

Here is my bandaid:

         // CHECKPOINTING
         if (checkpoint && generation%checkpointModulo == 0 &&
evaluations%checkpointModulo == 0)

Does this look like a valid bug and fix? I am reluctant to check
anything into CVS without review.

Thanks,
-Dave