Substructure Causing Unboundedness

Description

When the underlying math program is unbounded, the math program inspector follows a straightforward procedure. First, all infinite variable bounds are replaced by a big constant M. Then, the resulting model is solved, and all variables that are equal to this big M are bookmarked in the tree as being the Substructure Causing Unboundedness. In addition, all constraints that contain at least two bookmarked variables are bookmarked too.

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