Gurobi 5.0.1 (linux64) logging started Sat Dec 8 10:26:13 2012 Optimize a model with 1095 rows, 1080 columns and 3554 nonzeros Presolve removed 101 rows and 60 columns Presolve time: 0.01s Presolved: 994 rows, 1020 columns, 3314 nonzeros Variable types: 679 continuous, 341 integer (341 binary) Root relaxation: objective 1.027207e+05, 513 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 102720.679 0 181 - 102720.679 - - 0s H 0 0 200925.00000 102720.679 48.9% - 0s 0 0 126810.747 0 35 200925.000 126810.747 36.9% - 0s 0 0 127502.425 0 38 200925.000 127502.425 36.5% - 0s 0 0 127634.054 0 10 200925.000 127634.054 36.5% - 0s 0 0 127639.543 0 19 200925.000 127639.543 36.5% - 0s 0 2 127639.659 0 19 200925.000 127639.659 36.5% - 0s H 27 25 128052.00000 127651.329 0.31% 7.1 0s * 121 76 54 127958.00000 127665.850 0.23% 4.4 1s * 206 130 39 127957.00000 127673.704 0.22% 4.3 2s H 241 70 127846.00000 127674.238 0.13% 4.2 2s H 357 136 127825.00000 127675.570 0.12% 3.8 4s 364 135 127683.714 5 8 127825.000 127678.723 0.11% 3.9 5s * 555 182 38 127794.00000 127687.183 0.08% 4.1 8s H 613 204 127789.00000 127688.044 0.08% 4.1 9s 626 216 127772.818 30 2 127789.000 127688.044 0.08% 4.1 10s * 661 114 20 127750.00000 127692.538 0.04% 4.1 10s * 802 86 20 127745.00000 127713.157 0.02% 4.4 13s 874 60 cutoff 14 127745.000 127724.964 0.02% 4.3 15s Cutting planes: Gomory: 24 Cover: 3 Flow cover: 137 Flow path: 86 Explored 903 nodes (4639 simplex iterations) in 15.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.277450000000e+05, best bound 1.277322370458e+05, gap 0.0100%