[Cbc] Model unreadable

[Bjørn Sigurd Johansen (Spider Solutions AS)]

Sure, but my comment line is
\ *** ***
and it seems as if the asterixis *within* the comment creates problems in my model.

Bjorn


From: Ted Ralphs <ted at lehigh.edu>
Sent: Friday, December 6, 2019 5:06 AM
To: Bjørn Sigurd Johansen (Spider Solutions AS) <bjorn.sigurd.johansen at spidersolutions.no>
Cc: cbc at list.coin-or.org; Haroldo Gambini Santos <haroldo.santos at gmail.com>
Subject: Re: Model unreadable

As far as I know, * indicates a comment in MPS format, but in LP format, it is \.

Ted

On Thu, Dec 5, 2019 at 4:10 PM Bjørn Sigurd Johansen (Spider Solutions AS) <bjorn.sigurd.johansen at spidersolutions.no<mailto:bjorn.sigurd.johansen at spidersolutions.no>> wrote:
Follow-up:
Are asterixis (*) illegal in comments?
After having removed all asterixis in the original model, the original model is solvable.






Dear All,

I have a really un-understandable problem. The model at
https://s3-eu-west-1.amazonaws.com/download.spidersolutions.no/Projects/LargeScale/modelReportingDuplicate.lp
gives error “### ERROR: 1 duplicates in objective and matrix”  and  “** Current model not valid”.  I am using latest CBC version downloaded 1 week ago.

I can’t see the reason for the message, and what’s more, if I do more or less any change in the *comment line*
\ *** ***
the error message either disappears or is changed.  E.g. if the comment line is completely removed, the model is OK/solvable.
(Everything on a line starting with a backslash should be ignored, right?)


Best,
Bjorn

PS. The model is unrealistic i.e. heavily minimized, without removing the original error “1 duplicates in objective and matrix”.


--
Dr. Ted Ralphs
Professor, Industrial and Systems Engineering
Lehigh University
(610) 628-1280
ted 'at' lehigh 'dot' edu
coral.ie.lehigh.edu/~ted<http://coral.ie.lehigh.edu/~ted>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://list.coin-or.org/pipermail/cbc/attachments/20191206/889ff2ce/attachment.html>