Compute an Irreducible Inconsistent Subsystem (IIS). An IIS is a subset of the constraints and variable bounds with the following properties:
If an IIS computation is interrupted before completion, Gurobi will internally store the best available IIS found so far.
This method populates the IISCONSTR, IISQCONSTR, and IISGENCONSTR
constraint attributes, the IISSOS SOS attribute, and the
IISLB, and IISUB variable attributes. You can
also obtain information about the results of the IIS computation by
writing a .ilp format file (see
GRBModel.write). This file
contains only the IIS from the original model.
Note that this method can be used to compute IISs for both continuous and MIP models.
| void | computeIIS ( ) |