[Cbc] Segmentation fault with my problem (2.8.3)

Rémy Roy remyroyster at gmail.com
Tue Mar 11 16:26:30 EDT 2014


Thanks for the quick follow up.

Regards,

Rémy


2014-03-11 16:23 GMT-04:00 John Forrest <john.forrest at fastercoin.com>:

>  Fixed in svn.
>
> Change is just to add to CbcSolver.cpp
>
>                        // Write solution header (suggested by Luigi
> Poderico)
> +                    // Refresh solver
> +                    lpSolver = clpSolver->getModelPtr();
>                        lpSolver->computeObjectiveValue(false);
>
>
> John Forrest
>
>
> On 11/03/14 17:34, Rémy Roy wrote:
>
>  Hello,
>
>  I just tried this problem again with 2.8.9 and I'm still getting the
> segmentation fault:
>
> ~$ cbc exception-cbc.mps branch printingOptions rows solution
> exception-cbc.mps.sol
> Welcome to the CBC MILP Solver
> Version: 2.8.9
> Build Date: Mar 11 2014
>
> command line - cbc exception-cbc.mps branch printingOptions rows solution
> exception-cbc.mps.sol (default strategy 1)
> At line 2 NAME          MODEL
> At line 3 ROWS
> At line 8 COLUMNS
> At line 22 RHS
> At line 26 BOUNDS
> At line 32 ENDATA
> Problem MODEL has 3 rows, 4 columns and 6 elements
> Coin0008I MODEL read with 0 errors
> Continuous objective value is 0 - 0.00 seconds
>  Cgl0004I processed model has 1 rows, 2 columns (2 integer) and 2 elements
> 1 infeasibilities
> Problem is infeasible!
> Option for printingOptions changed from normal to rows
> Segmentation fault (core dumped)
>
>  Was this supposed to be solved?
>
> exception-cbc.mps is still the same file on http://pastebin.com/zAdbGWfY
>
>  Regards,
>
> Rémy
>
>
> 2013-09-11 12:57 GMT-04:00 Stefan Vigerske <stefan at math.hu-berlin.de>:
>
>> Hi,
>>
>> the issue from
>> http://list.coin-or.org/pipermail/cbc/2013-August/001141.html
>> has been fixed and the fix will be in the next release.
>>
>> You could check out a pre-release (aka bugfix branch aka stable branch)
>> via svn by doing
>>   svn checkout https://projects.coin-or.org/svn/Cbc/stable/2.8
>>
>> Stefan
>>
>>
>>
>> On 09/11/2013 06:50 PM, Rémy Roy wrote:
>>
>>>  Hello,
>>>
>>> There is a segmentation fault when I try to solve this problem (MPS
>>> file: http://pastebin.com/zAdbGWfY) with the following command line
>>> using cbc 2.8.3:
>>>
>>>      $ cbc /tmp/24371-pulp.mps branch printingOptions rows solution
>>>      /tmp/24371-pulp.sol
>>>      Welcome to the CBC MILP Solver
>>>      Version: 2.8.3
>>>      Build Date: Sep 11 2013
>>>
>>>      command line - cbc /tmp/24371-pulp.mps branch printingOptions rows
>>>      solution /tmp/24371-pulp.sol (default strategy 1)
>>>      At line 2 NAME          MODEL
>>>      At line 3 ROWS
>>>      At line 8 COLUMNS
>>>      At line 22 RHS
>>>      At line 26 BOUNDS
>>>      At line 32 ENDATA
>>>      Problem MODEL has 3 rows, 4 columns and 6 elements
>>>      Coin0008I MODEL read with 0 errors
>>>      Continuous objective value is 0 - 0.00 seconds
>>>      Cgl0004I processed model has 1 rows, 2 columns (2 integer) and 2
>>>      elements
>>>      1 infeasibilities
>>>      Problem is infeasible!
>>>      Option for printingOptions changed from normal to rows
>>>      Segmentation fault (core dumped)
>>>
>>>
>>> This might be related to
>>> http://list.coin-or.org/pipermail/cbc/2013-August/001141.html .
>>>
>>> Was this problem solved already? If so, is there any planned release
>>> that would include this fix? It seems like 2.8.3 is the latest version
>>> on http://www.coin-or.org/download/source/Cbc/ .
>>>
>>> Regards,
>>>
>>>
>>>
>>>  _______________________________________________
>>> Cbc mailing list
>>> Cbc at list.coin-or.org
>>> http://list.coin-or.org/mailman/listinfo/cbc
>>>
>>>
>>
>
>
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