-
STATUS
-
indicates the solver status at termination. It can take one of the following values:
- OK
-
The solver terminated normally.
- SYNTAX_ERROR
-
The use of syntax is incorrect.
- DATA_ERROR
-
The input data are inconsistent.
- OUT_OF_MEMORY
-
Insufficient memory was allocated to the procedure.
- IO_ERROR
-
A problem in reading or writing of data has occurred.
- SEMANTIC_ERROR
-
An evaluation error, such as an invalid operand type, has occurred.
- ERROR
-
The status cannot be classified into any of the preceding categories.
-
ALGORITHM
-
indicates the algorithm that produced the solution data in the macro variable. This term only appears when STATUS=OK. It can
take one of the following values:
- IP
-
The interior point algorithm produced the solution data.
- AS
-
The active-set algorithm produced the solution data.
When running algorithms concurrently (ALGORITHM=
CONCURRENT), this term indicates which algorithm was the first to terminate.
-
SOLUTION_STATUS
-
indicates the solution status at termination. It can take one of the following values:
- OPTIMAL
-
The solution is optimal.
- CONDITIONAL_OPTIMAL
-
The optimality of the solution cannot be proven.
- BEST_FEASIBLE
-
The solution returned is the best feasible solution. This solution status indicates that the algorithm has converged to a
local optimum but a feasible (not locally optimal) solution with a better objective value has been found and hence is returned.
- INFEASIBLE
-
The problem is infeasible.
- UNBOUNDED
-
The problem might be unbounded.
- INFEASIBLE_OR_UNBOUNDED
-
The problem is infeasible or unbounded.
- BAD_PROBLEM_TYPE
-
The problem type is not supported by the solver.
- ITERATION_LIMIT_REACHED
-
The maximum allowable number of iterations has been reached.
- TIME_LIMIT_REACHED
-
The solver reached its execution time limit.
- FAILED
-
The solver failed to converge, possibly due to numerical issues.
-
OBJECTIVE
-
indicates the objective value that is obtained by the solver at termination.
-
NUMSTARTS
-
indicates the number of starting points. This term appears only in multistart mode.
-
SAMPLE_POINTS
-
indicates the number of points that are evaluated in the sampling phase. This term appears only in multistart mode.
-
DISTINCT_OPTIMA
-
indicates the number of distinct local optima that the solver finds. This term appears only in multistart mode.
-
SEED
-
indicates the seed value that is used to initialize the solver. This term appears only in multistart mode.
-
INFEASIBILITY
-
indicates the level of infeasibility of the constraints at the solution.
-
OPTIMALITY_ERROR
-
indicates the norm of the optimality conditions at the solution. See the section Solver Termination Criterion for details.
-
ITERATIONS
-
indicates the number of iterations required to solve the problem.
-
PRESOLVE_TIME
-
indicates the real time taken for preprocessing (seconds).
-
SOLUTION_TIME
-
indicates the real time taken by the solver to perform iterations for solving the problem (seconds).
