The OPTLSO Procedure

After PROC OPTLSO terminates, one of the following messages is displayed:

User interrupted.: The procedure was interrupted by the user.
Function convergence criteria reached.: The best objective value and feasibility have not sufficiently improved for the specified number of iterations. This criterion is a typical exit state if the global optimum is reached early in the algorithm.
Maximum function evaluations reached.: PROC OPTLSO has attempted to exceed the maximum number of function evaluations.
Generations complete.: The maximum number of GA generations (iterations) has been reached. At this point, no new points are generated, and the algorithm exits.
Maximum time reached.: PROC OPTLSO has exceeded the maximum allotted time.
Problem may be unbounded.: The objective value appears to take on arbitrarily large values at points that satisfy the feasibility tolerance.
Infeasible.: The problem is infeasible.
Failed.: The algorithm exited for any reason other than the preceding reasons. For example, this message is displayed if the provided FCMP function does not exist or cannot be evaluated.