[Clp] initialBarrierSolve runs into an infinite loop

[John Forrest]

Found difficult to reproduce due to compiler options etc.

Yet more changes in.  Changes to ClpSolve.cpp may spoil your fun - so 
you may have to change to -

     ClpSolve options;
     options.setSolveType(ClpSolve::useBarrier);
     options.setPresolveType(ClpSolve::presolveOff);
     model.initialSolve (options);



On 06/12/2023 15:22, Henning Thielemann wrote:
>
> On Wed, 6 Dec 2023, John Forrest wrote:
>
>> Giving it until having done 50 iterations and making tiny or no 
>> progress.
>>
>> Another change to ClpPredictorCorrector.cpp in master
>
> Your patch fixes the instance, I submitted, but attached is another 
> one, that still causes an infinite loop.