[Cbc] CbcMain1 returns bogus result when it cannot improve on setBestSolution

[Haroldo Gambini Santos]

Maybe you should set keepPreprocNames(true) ?

-- 
=============================================================
Haroldo Gambini Santos
Computing Department
Universidade Federal de Ouro Preto - UFOP
email: haroldo at ufop.edu.br
        Haroldo.GambiniSantos at cs.kuleuven.be
home/research page: www.decom.ufop.br/haroldo


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"

On Tue, 11 Jun 2019, Jack Vreeken wrote:

>> One problem with indexes is that after pre-processing some variables are
>> removed and the indexes became invalid.
>
> Generating random names, I immediately get "Warning: MIPstart solution is not
> valid, column names do not match, ignoring it." Looking at the source, it must
> be because I have some variables for which the bounds are equal. If that makes
> setMIPStart() no longer a viable option, then I will probably have to resort
> to just using setBestSolution (and caching its results myself). I do wonder
> why setBestSolution() does not suffer from the same pre-processing issues
> that affect setMIPStart you mention.
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