Memory corruption when wma and epmem both active

What steps will reproduce the problem?
1.  Source the following:

wma --set activation on
epmem --set learning on
epmem --set trigger dc

sp {crash
   (state <s> ^superstate nil
              ^epmem.present-id)
-->
   (<s> ^crash now)
}

2. Step until the agent subgoals.

What is the expected output? What do you see instead?

Not crashing.  It crashes.

Please use labels and text to provide additional information.

This is probably an issue with wma.cpp not handling refcounts properly.  If you 
turn memory pools off, it will crash when free memory for a working memory 
element in the o-set (something that wma.cpp keeps track of for each wme).

Note that it will not crash on this example if "now" is an id (<now>) instead 
of a constant or if ^crash isn't off the top state or if the production is 
o-supported

Original issue reported on code.google.com by maz...@gmail.com on 14 Jan 2013 at 4:59

sleyzerzon / soar

Memory corruption when wma and epmem both active #132