[Cbc] CBC 2.9.7 crashes after cuts generation at root node

[Anton Kargapolov]

Thank you Ted and Haroldo,

I've tried cbc 2.9 (build date 1 Sep 2016) from here :
https://bintray.com/coin-or/download/download_file?file_path=Cbc-2.9-win32-msvc9.zip
Crash happens at the same place.
I have located that option "-strategy 2" makes the crash. With default
strategy=1 it doesn't crash.
I'm not sure what this option does, so i just assumed that my problem is
hard to solve (job-shop scheduling) and "strategy 2" can be an option to
try.

With regards,
Anton


On Sun, 18 Sep 2016 at 04:11 Ted Ralphs <ted at lehigh.edu> wrote:

> As an alternative, I'm in the process of rolling out automated deployment
> of binaries and this is a good chance for testing that. I'd appreciate if
> you could check out the binaries here:
>
> https://bintray.com/coin-or/download/Cbc/2.9#files/
>
> and let me know if they work for you. These are built against the latest
> commit in the stable 2.9 branch. Trunk (development version) builds are
> also available. These binaries are built, tested, and deployed
> automatically from either Travis (Linux and OSX) or Appveyor (Windows)
> after each commit. Starting with the next release, binaries will also be
> deployed automatically immediately following each release. Let me know how
> it goes.
>
> Cheers,
>
> Ted
>
> On Sat, Sep 17, 2016 at 4:21 PM, Haroldo Gambini Santos <
> haroldo.santos at gmail.com> wrote:
>
>> Hi Anton,
>>
>> Here http://www.decom.ufop.br/haroldo/files/cbc.exe
>> <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.decom.ufop.br_haroldo_files_cbc.exe&d=CwMD-g&c=Ngd-ta5yRYsqeUsEDgxhcqsYYY1Xs5ogLxWPA_2Wlc4&r=rnUB298ByR5BGgo6vv2b6g&m=xbK2AYbQr20R9zwupDg8wmbo5Htd_7yDIUMAC6MMOMo&s=tyNMmY5OsZj91xe8DTSdddBGt0K7f1R2EwiB4xs-EyA&e=>
>>
>> there is an updated windows binary statically compiled (no dependencies I
>> think). Please try with this updated version.
>>
>> Em 15/09/2016 08:31, Anton Kargapolov escreveu:
>>
>> Hi,
>> My CBC solver consistently crusher when it finds optimal solution at root
>> node after doing cuts generation.
>> I attach model, log and screenshot.
>> Model has ~20000 variables, most of them are "fixed" to specific value by
>> constraints, and only a fraction of ~20% is to be solved.
>> I haven't tried 2.9.8 since i can't find the binary for that version. I
>> use 2.9.7 downloaded from AMPL web-page
>> http://ampl.com/products/solvers/open-source/#cbc
>> <https://urldefense.proofpoint.com/v2/url?u=http-3A__ampl.com_products_solvers_open-2Dsource_-23cbc&d=CwMFaQ&c=Ngd-ta5yRYsqeUsEDgxhcqsYYY1Xs5ogLxWPA_2Wlc4&r=pLOfVNEEHf-xhIqn1-uzYcZ6Q7UefG6Bg6rXCKTMiAA&m=6BwUl-A6mJoBuL1eDR9jiVmi4N30LCBfZq-97sI0fsE&s=8vB_Q6wVyffBVWlTmk6ZQ2feBTdk-vlK7b2SxB1NdSY&e=>
>>
>> With regards,
>> Anton
>>
>>
>>
>> _______________________________________________
>> Cbc mailing listCbc at list.coin-or.orghttps://urldefense.proofpoint.com/v2/url?u=http-3A__list.coin-2Dor.org_mailman_listinfo_cbc&d=CwICAg&c=Ngd-ta5yRYsqeUsEDgxhcqsYYY1Xs5ogLxWPA_2Wlc4&r=pLOfVNEEHf-xhIqn1-uzYcZ6Q7UefG6Bg6rXCKTMiAA&m=6BwUl-A6mJoBuL1eDR9jiVmi4N30LCBfZq-97sI0fsE&s=tCuezY6y5_lO6bkiLDy5towIMrXMSBTIbi7W0ZwZCw0&e=
>>
>>
>> --
>> ==================================================
>> Haroldo Gambini Santos
>> D.Sc, Computer Science
>> Universidade Federal de Ouro Pretohttp://www.decom.ufop.br/haroldo/ <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.decom.ufop.br_haroldo_&d=CwMD-g&c=Ngd-ta5yRYsqeUsEDgxhcqsYYY1Xs5ogLxWPA_2Wlc4&r=rnUB298ByR5BGgo6vv2b6g&m=xbK2AYbQr20R9zwupDg8wmbo5Htd_7yDIUMAC6MMOMo&s=S9kGiDuZhCsFTTt3QfH0LUY8Uqms6T0f2GnwhHf04t4&e=>
>>
>> It has long been an axiom of mine that the little things are infinitely
>> the most important.
>> 		-- Sir Arthur Conan Doyle, "A Case of Identity"
>>
>>
>> _______________________________________________
>> Cbc mailing list
>> Cbc at list.coin-or.org
>>
>
>> https://urldefense.proofpoint.com/v2/url?u=http-3A__list.coin-2Dor.org_mailman_listinfo_cbc&d=CwICAg&c=Ngd-ta5yRYsqeUsEDgxhcqsYYY1Xs5ogLxWPA_2Wlc4&r=rnUB298ByR5BGgo6vv2b6g&m=xbK2AYbQr20R9zwupDg8wmbo5Htd_7yDIUMAC6MMOMo&s=VjQulhGOkaVUKXShG1FrOKhd-n2qnJb8xKkcYfcC0zc&e=
>>
>>
>
>
> --
> Dr. Ted Ralphs
> Professor, Lehigh University
> (610) 628-1280
> ted 'at' lehigh 'dot' edu
> coral.ie.lehigh.edu/~ted
>
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