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334 instances. The archives below carry both files of every instance, 2.22 GiB unpacked in all.
Primal-infeasible
primal-infeasible.zip1.55 GiB unpacked
primal-infeasible.csvindex
The archive unpacks to instances/infeasible/. The index lists every instance in this subset with its dimensions and the filename to fetch.
Dual-infeasible
dual-infeasible.zip686.9 MiB unpacked
dual-infeasible.csvindex
The archive unpacks to instances/unbounded/. The index lists every instance in this subset with its dimensions and the filename to fetch.
Single instances download from their own page. Every asset sits directly under the release prefix, so a filename taken from an index is all you need to append.