[eclipse-clp-users] Execution time

Hi all,

	I am running my experiments in CLP, and notice that the execution times
of some experiments were very long (> 15 hours, and still waiting) no
matter what selection method I used. These experiments seem to be in the
same complexity level as those which can be finished within several
seconds if the right selection method was chosen. 

	So I wonder how to deal with these experiments, and why CLP behaves
like this. I've attached two experiments. r30_4.ecl have not finished
execution yet, while r30_9.ecl gave me the optimal within 1 second.

	Any ideas? Thanks. 

Regards,
Jacky