Gurobi 5.0.1 (linux64) logging started Wed Apr 24 09:58:31 2013 Optimize a model with 1100 rows, 100100 columns and 200100 nonzeros Presolve time: 0.20s Presolved: 1100 rows, 100100 columns, 200100 nonzeros Variable types: 100000 continuous, 100 integer (100 binary) Root relaxation: objective 1.315768e+05, 3324 iterations, 0.15 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 131576.814 0 3 - 131576.814 - - 0s H 0 0 135198.00000 131576.814 2.68% - 0s 0 0 131657.709 0 3 135198.000 131657.709 2.62% - 0s 0 0 131670.447 0 3 135198.000 131670.447 2.61% - 1s 0 0 131695.358 0 2 135198.000 131695.358 2.59% - 1s 0 0 131706.673 0 2 135198.000 131706.673 2.58% - 1s 0 0 131712.691 0 3 135198.000 131712.691 2.58% - 1s 0 0 131712.707 0 2 135198.000 131712.707 2.58% - 1s 0 0 131712.707 0 2 135198.000 131712.707 2.58% - 1s 0 0 131712.707 0 2 135198.000 131712.707 2.58% - 2s 0 0 131712.707 0 2 135198.000 131712.707 2.58% - 2s 0 2 131713.399 0 2 135198.000 131713.399 2.58% - 2s H 1 1 135040.29730 131713.399 2.46% 0.0 2s H 3 3 133658.00000 131794.415 1.39% 51.3 3s H 4 3 132054.00000 131800.615 0.19% 51.2 3s H 5 4 131949.94118 131800.846 0.11% 45.8 3s H 6 4 131865.00000 131801.754 0.05% 44.5 3s * 9 2 6 131848.00000 131806.920 0.03% 44.4 3s Cutting planes: Implied bound: 45 Flow cover: 5 Explored 12 nodes (3993 simplex iterations) in 3.33 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.318480000000e+05, best bound 1.318480000000e+05, gap 0.0%