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Cool! Which version of HiGHS did you use? We found bugs in the later versions when using it with Sertalp’s Python solver.

github.comFix 1954 by fwesselm · Pull Request #2066 · ERGO-Code/HiGHSThis PR fixes #1954: Bound types of general-integer variables from variable bound constraints may have been overwritten, e.g. a variable upper bound of the form x <= b*y + c where x is NOT a co...

I've got it running with version 1.9.0 which was released just before Christmas. The fix (github.com/ERGO-Code/Hi...) for that issue was closed just after the release of 1.8.1, so this *should* be the first fixed release I can say I didn't run into the issue in testing anyway

HiGHS is software that can be imagined as the engine that is fed a constructed linear problem. For the same problem it will find the same optimal output, however it will do so significantly faster than the previous incarnation. It also has also some extra features that may be used in future

If you want to run AM chip solves, make sure to activate the AM chip in your draft and if you wish to consider AM transfers extend the solve depth to cover the amount of GWs needed If you run into a bug it would be great if you can send me an email detailing the case for investigation