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Good morning Lan,<br>
<br>
how about using SCIPdelCons() instead of SCIPdisableCons()?<br>
<br>
Let me know if that works for you,<br>
Gregor<br>
<br>
<div class="moz-cite-prefix">Am 09.10.19 um 01:03 schrieb Ngô Lan:<br>
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<p>Hi all,</p>
<p><br>
</p>
<p>I am solving a project scheduling problem using
branch-price-cut and I am having an issue with <span>SCIPdisableCons
function. So after each pricing iteration, I will not
release the subscip but only free the transformed problem
using SCIPfreetransform and modify the objective function of
the subscip in the next iteration. During branching, in
CONSACTIVE, I will create an additional constraint for the
subproblem depending on the branching decision and in
CONSDEACTIVE, I will disable the related constraint using <span>SCIPdisableCons.
However, I got the error: <span>cannot call method
<SCIPdisableCons> in problem creation stage. Do
you know another function that can work? Or what should
I do differently?</span></span></span></p>
<p><span><span><span><br>
</span></span></span></p>
<p><span><span><span>Thank you for your time,</span></span></span></p>
<p><br>
</p>
<p>Best,</p>
<p>Lan</p>
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