Re: [Help-glpk] glp_ios_heur in Java: format of heuristic solution

[Simon B]

If you provide a solution to the original mip, the mip preprocessor
should be disabled; otherwise the mip solver assumes that you provide a
solution to the preprocessed mip, that probably is not your intention.

 
Disabling the presolver solved the issue. Thanks for the quick reply!

Regards,

Simon