CPXMI_EPGAP_LARGE

1038 Solution optimal within relative optimality tolerance of %g, but non optimal within absolute optimality tolerance of value %g

#define CPXMI_EPGAP_LARGE 1038

The optimal solution is optimal within the specified relative optimality tolerance, but it is not optimal within the specified absolute optimality tolerance. Consider decreasing the relative optimality tolerance CPX_PARAM_EPGAP (defined in cplex.h) to possibly find a more accurate optimal solution.