spinjala wrote Each solution has a score, a combination of the hard and soft scores, each of which represents the sum of constraint violations. If the scores are <0, then the solution is nonoptimal; and thus, it will keep looking. You might try the termination/maximumUnimprovedStepCount config setting. (see section 6.6.4 of the doc) This stops the solving after a number of steps have been tried without any improvement to the score. Jon -- View this message in context: http://drools.46999.n3.nabble.com/modifying-the-problem-facts-while-runni... Sent from the Drools: User forum mailing list archive at Nabble.com.