[gecode-users] Problem with constraint
Ujhelyi Zoltan
uz602 at hszk.bme.hu
Mon Aug 25 22:40:31 CEST 2008
Ok, I see.
Thank you for looking into the problem,
Zoli
On 2008.08.25., at 21:48, Guido Tack wrote:
> Ujhelyi Zoltan wrote:
>> I tested the new Gecode/J 2.2.0. I am very grateful for your work,
>> but it did not work for me as I expected. I modified the
>> constraints as you showed, but it did not prove the required
>> equality.
>
> I had another look, and unfortunately, we cannot provide stronger
> pruning for BExprs at the moment. The technical explanation is that
> Exprs are translated to linear constraints, and there just is no
> ICL_DOM for reified linear constraints. I just added the arguments,
> but didn't realize that the actual pruning wouldn't happen.
>
> The only workaround is currently to post the reified constraints
> directly, sorry.
>
> Cheers,
> Guido
>
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