Possibly a supervisor process should monitor your primary process to see if it's still making progress. You might touch somefile from within the memorymonster, and have the supervisor check that file not becoming too old.

I've found 

if (my $chld = fork) {
   # supervise $chld from here 
} 
else { 
   # unreliable process here
}

[download]
useful. hth

Edit: Maybe you can make do with just confirming a successful run with a print "successfully done\n";

In reply to Re: No 'out of memory' message on Windows? by stiller
in thread No 'out of memory' message on Windows? by oxone

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