[Cbc] Model unreadable

[Ted Ralphs]

Ah, OK, could you open an issue on Github for this? I guess it's probably a
bug.

Ted

On Fri, Dec 6, 2019 at 3:14 AM Bjørn Sigurd Johansen (Spider Solutions AS) <
bjorn.sigurd.johansen at spidersolutions.no> wrote:

> 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> 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
>


-- 
Dr. Ted Ralphs
Professor, Industrial and Systems Engineering
Lehigh University
(610) 628-1280
ted 'at' lehigh 'dot' edu
coral.ie.lehigh.edu/~ted
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