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<div class="moz-cite-prefix">Hi Jose,<br>
<br>
normally, this may come up if some limit is reached or you press
CTRL-C while SCIP is in the pricing loop and it should show that
therefore, pricing was stopped and the LP solution you have at the
end of the node is not optimal for the unrestricted master
problem. Nevertheless, it should not lead to wrong results.<br>
<br>
I assume you did not stop the run by pressing CTRL-C? Did this run
perhaps hit the time limit? If not, I will need to check the code
to see what might have happened.<br>
<br>
Best,<br>
Gerald<br>
<br>
On 12.01.2016 09:47, Jose L. Walteros wrote:<br>
</div>
<blockquote
cite="mid:59CFEDF9-30FD-4C00-803F-75FDCA980B84@gmail.com"
type="cite">
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<div class="">Hi all, </div>
<div class=""><br class="">
</div>
<div class="">I am currently testing a Branch and Price algorithm
I coded. In one of the tests I am getting the warning:</div>
<div class=""><br class="">
</div>
<div class="">
<div style="margin: 0px; font-size: 11px; line-height: normal;
font-family: Menlo;" class="">WARNING: pricing has been
interrupted -- LP of current node is invalid</div>
</div>
<div class=""><br class="">
</div>
<div class="">The execution continues and the solver returns the
correct answer, but it seems something is not quite wright. I’ve
tried to identify the possible cause for the warning, but up to
now I haven’t been successful. I was hoping you could help me
pinpoint the possible source.</div>
<div class=""><br class="">
</div>
<div class="">The pricing algorithm for my model is not a
mathematical formulation, so there is no LP for the pricer. The
fact that the warning states that the LP is invalid seems to
imply that perhaps the branching rule is making the LP somehow
“invalid”.</div>
<div class=""><br class="">
</div>
<div class="">Any thoughts?</div>
<div class=""><br class="">
</div>
<div class="">Thanks.</div>
<div class=""><br class="">
</div>
<div class="">—Jose</div>
<div class=""><br class="">
</div>
<div class=""><br class="">
</div>
<br>
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