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MIPSTATUS

Description

Global (MIP) solution status.

Type

Integer

Values

XPRS_MIP_LP_OPTIMAL	LP has been optimized. Once the MIP optimization proper has begun, only the following four status codes will be returned.
XPRS_MIP_INFEAS	Global search complete - no integer solution found.
XPRS_MIP_SOLUTION	Global search incomplete - an integer solution has been found.
XPRS_MIP_OPTIMAL	Global search complete - integer solution found.
XPRS_MIP_NO_SOL_FOUND	Global search incomplete - no integer solution found.
XPRS_MIP_LP_NOT_OPTIMAL	LP has not been optimized.
XPRS_MIP_NOT_LOADED	Problem has not been loaded.

Notes

If the XPRS_MIP_LP_OPTIMAL status code is returned, it implies that the optimization halted during or directly after the LP optimization - for instance, if the LP relaxation is infeasible or unbounded. In this case please check the value of LP solution status using LPSTATUS.
The possible return values are defined as constants in the Optimizer C header file and VB .bas file. Refer to one of those files for the value of the return codes listed above.

Set by routines

XPRSglobal, XPRSloadglobal, XPRSloadqglobal, XPRSmaxim (MAXIM), XPRSminim (MINIM), XPRSreadprob.