Gurobi 5.0.1 (linux64) logging started Sun Dec 9 21:44:42 2012 Optimize a model with 1110 rows, 1080 columns and 3582 nonzeros Presolve removed 39 rows and 24 columns Presolve time: 0.01s Presolved: 1071 rows, 1056 columns, 3486 nonzeros Variable types: 705 continuous, 351 integer (351 binary) Root relaxation: objective 1.006439e+05, 544 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 100643.946 0 196 - 100643.946 - - 0s H 0 0 174487.00000 100643.946 42.3% - 0s 0 0 124427.620 0 25 174487.000 124427.620 28.7% - 0s 0 0 124983.863 0 25 174487.000 124983.863 28.4% - 0s 0 0 125353.374 0 12 174487.000 125353.374 28.2% - 0s 0 0 125426.681 0 14 174487.000 125426.681 28.1% - 0s H 0 0 126275.00000 125426.681 0.67% - 0s 0 2 125427.508 0 14 126275.000 125427.508 0.67% - 0s H 18 18 126141.00000 125432.104 0.56% 4.3 0s * 21 16 21 125665.00000 125432.104 0.19% 4.0 1s * 41 19 17 125632.00000 125432.916 0.16% 3.9 1s H 112 37 125602.00000 125469.298 0.11% 3.8 4s * 113 28 11 125556.00000 125469.298 0.07% 3.8 4s 135 27 125550.352 7 1 125556.000 125490.407 0.05% 3.9 5s * 141 22 6 125555.00000 125494.264 0.05% 3.9 5s * 146 9 5 125534.00000 125512.665 0.02% 3.9 5s Cutting planes: Gomory: 25 Cover: 2 Flow cover: 122 Flow path: 79 Explored 152 nodes (1387 simplex iterations) in 5.60 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.255340000000e+05, best bound 1.255270807725e+05, gap 0.0055%