AMPL and MINOS: deduced bounds

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June 28th, 2008, 08:20 PM

chaominluo

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AMPL and MINOS: deduced bounds

Hi,

I am using AMPL and MINS to solve my nonlinear programming problem. I
got error message that is following:

presolve, variable y['module6']:
impossible deduced bounds: lower = 6.49258, upper = -6.49258;
difference = 12.9852.

Why does it happen? How can I figure it out? Does anybody know how I
can solve this problem?

Thanks a lot!

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