Gurobi 5.0.1 (linux64) logging started Sun Dec 9 21:44:21 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 173987.00000 100643.946 42.2% - 0s 0 0 124427.620 0 25 173987.000 124427.620 28.5% - 0s 0 0 124983.863 0 25 173987.000 124983.863 28.2% - 0s 0 0 125353.374 0 12 173987.000 125353.374 28.0% - 0s 0 0 125426.681 0 14 173987.000 125426.681 27.9% - 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 23 22 126141.00000 125432.104 0.56% 2.9 0s * 26 19 26 125665.00000 125432.104 0.19% 2.7 0s * 134 32 12 125556.00000 125460.482 0.08% 3.1 0s * 171 17 7 125534.00000 125491.579 0.03% 3.2 0s Cutting planes: Gomory: 24 Cover: 2 Flow cover: 122 Flow path: 76 Explored 192 nodes (1399 simplex iterations) in 0.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.255340000000e+05, best bound 1.255238164460e+05, gap 0.0081%