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<div class="moz-cite-prefix">Iulian,<br>
<br>
If you just want to diagnose an infeasible LP or an ILP with an
infeasible relaxed solution there is an example program iis.cpp in
trunk/Clp/examples which may do what you want.<br>
<br>
John Forrest<br>
<br>
On 24/03/18 16:48, Ted Ralphs wrote:<br>
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cite="mid:CA+GYycu5-pRn433TA_k6rGT4=Z+ncu5wghSbAxrvmcz0A6L+Yw@mail.gmail.com">
<div dir="ltr">As far as I know, there aren't any open source
solvers that do this automatically (although I could be wrong),
but I don't think it would be too involved to code up a method
for finding an IIS that is wrapped around one of the open source
solvers.
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<div>Cheers,</div>
<div><br>
</div>
<div>Ted</div>
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<div class="gmail_extra"><br>
<div class="gmail_quote">On Wed, Feb 21, 2018 at 12:08 PM,
Iulian Ober <span dir="ltr"><<a
href="mailto:iulian.s.ober@gmail.com" target="_blank"
moz-do-not-send="true">iulian.s.ober@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Hello,<br>
<br>
I'm not sure this is the best forum for this question, sorry
if it's not. We are looking for an open-source ILP solver
that generates the IIS for infeasible models. A quick search
on the web didn't reveal anything, it looks like the major
candidates do not provide this feature (unless we overlooked
something). Any information about this is much appreciated.<br>
<br>
Best regards,<br>
Iulian Ober<br>
<br>
<br>
<br>
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-- <br>
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<div><span style="font-size:12.8000001907349px">Dr. Ted
Ralphs</span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">Professor,
Lehigh University</span><br
style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">(610) 628-1280</span><br
style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">ted 'at' lehigh
'dot' edu</span><br style="font-size:12.8000001907349px">
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