Gurobi 5.0.1 (linux64) logging started Fri Jan 18 03:12:07 2013 Optimize a model with 1400 rows, 38250 columns and 150750 nonzeros Presolve removed 50 rows and 2850 columns Presolve time: 0.23s Presolved: 1350 rows, 35400 columns, 140750 nonzeros Variable types: 35050 continuous, 350 integer (350 binary) Root relaxation: objective 2.246016e+05, 2438 iterations, 0.11 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 224601.597 0 4 - 224601.597 - - 0s H 0 0 225256.71420 224601.597 0.29% - 0s 0 0 224601.597 0 4 225256.714 224601.597 0.29% - 0s 0 0 224601.597 0 4 225256.714 224601.597 0.29% - 0s 0 0 224601.597 0 4 225256.714 224601.597 0.29% - 0s 0 0 224601.597 0 4 225256.714 224601.597 0.29% - 1s 0 0 224601.597 0 4 225256.714 224601.597 0.29% - 1s 0 0 224601.597 0 4 225256.714 224601.597 0.29% - 1s 0 2 224601.597 0 4 225256.714 224601.597 0.29% - 1s * 5 0 4 224847.24808 224847.248 0.0% 95.6 1s Cutting planes: Flow cover: 4 Explored 6 nodes (4481 simplex iterations) in 1.85 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.248472480793e+05, best bound 2.248472480793e+05, gap 0.0%