Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:55:26 2013 Optimize a model with 140 rows, 1230 columns and 2640 nonzeros Presolve removed 10 rows and 10 columns Presolve time: 0.00s Presolved: 130 rows, 1220 columns, 2430 nonzeros Variable types: 1220 continuous, 0 integer (0 binary) Root relaxation: objective 2.162324e+04, 127 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 21623.2446 0 2 - 21623.2446 - - 0s H 0 0 21994.101780 21623.2446 1.69% - 0s 0 2 21623.2446 0 2 21994.1018 21623.2446 1.69% - 0s * 17 7 9 21759.198219 21755.1268 0.02% 3.1 0s Explored 25 nodes (186 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.175919821855e+04, best bound 2.175726086104e+04, gap 0.0089%