Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:41:10 2013 Optimize a model with 935 rows, 72335 columns and 144585 nonzeros Presolve time: 0.11s Presolved: 935 rows, 72335 columns, 144585 nonzeros Variable types: 72250 continuous, 85 integer (85 binary) Root relaxation: objective 1.005811e+05, 2931 iterations, 0.12 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 100581.056 0 7 - 100581.056 - - 0s H 0 0 108147.00000 100581.056 7.00% - 0s 0 0 100784.727 0 4 108147.000 100784.727 6.81% - 0s 0 0 100804.631 0 3 108147.000 100804.631 6.79% - 0s H 0 0 105489.00000 100804.631 4.44% - 0s 0 0 100810.625 0 4 105489.000 100810.625 4.43% - 0s H 0 0 103206.00000 100810.625 2.32% - 1s 0 0 100815.978 0 3 103206.000 100815.978 2.32% - 1s 0 0 100821.172 0 3 103206.000 100821.172 2.31% - 1s 0 0 100823.987 0 3 103206.000 100823.987 2.31% - 1s 0 0 100824.103 0 2 103206.000 100824.103 2.31% - 1s 0 0 100824.724 0 1 103206.000 100824.724 2.31% - 1s 0 0 100824.724 0 1 103206.000 100824.724 2.31% - 1s 0 0 100824.724 0 1 103206.000 100824.724 2.31% - 1s 0 0 100824.954 0 2 103206.000 100824.954 2.31% - 1s 0 2 100825.000 0 2 103206.000 100825.000 2.31% - 2s H 2 2 102636.00000 100825.061 1.76% 1.5 2s H 3 3 102362.00000 100838.400 1.49% 21.0 2s H 11 7 101393.00000 100865.446 0.52% 19.5 2s H 13 5 101118.00000 100865.446 0.25% 18.1 2s H 15 6 101027.00000 100865.446 0.16% 17.4 2s * 17 5 17 101005.00000 100865.446 0.14% 16.7 2s * 23 0 14 100984.00000 100984.000 0.0% 45.7 2s Cutting planes: Implied bound: 98 Flow cover: 6 Explored 24 nodes (4703 simplex iterations) in 2.85 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.009840000000e+05, best bound 1.009840000000e+05, gap 0.0%