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Re: Small program that seems to loop

From: Michael Hennebry
Subject: Re: Small program that seems to loop
Date: Fri, 16 Oct 2020 10:03:07 -0500 (CDT)
User-agent: Alpine 2.20 (DEB 67 2015-01-07)

The problem seems to be that lack of an objective function.
In the transition from branch and bound to branch and bound and cut,
bound lost billing: branch and cut.
With an all-zero objective function, the solver cannot do bounding.
Every solution will be dual-degenerate.
That messes up selection of entering variables for dual pivots.

Try giving the problem an arbitrary objective,
perhaps index numbers or their recipricols.

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