This page contains problem instances generated in the paper

These instances are also available from this URL on my old webpage. However, this URL will soon disappear, so please update your bookmarks.

The weakly infeasible, messy instances are the hardest.

To make using these instances easier, here is

The instances (in Sedumi format, in zip files) are here:

Feel free to send me comments, suggestions, or email me if you find any broken links.