Gurobi 5.0.1 (linux64) logging started Wed Apr 24 02:13:43 2013 Optimize a model with 759 rows, 47679 columns and 95289 nonzeros Presolve time: 0.07s Presolved: 759 rows, 47679 columns, 95289 nonzeros Variable types: 47610 continuous, 69 integer (69 binary) Root relaxation: objective 7.433639e+04, 1742 iterations, 0.05 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 74336.3902 0 9 - 74336.3902 - - 0s H 0 0 80001.000000 74336.3902 7.08% - 0s H 0 0 75806.000000 74336.3902 1.94% - 0s 0 0 74902.5349 0 6 75806.0000 74902.5349 1.19% - 0s 0 0 74906.6519 0 5 75806.0000 74906.6519 1.19% - 0s 0 0 74912.1508 0 5 75806.0000 74912.1508 1.18% - 0s 0 0 74914.2373 0 5 75806.0000 74914.2373 1.18% - 0s 0 0 74914.2373 0 5 75806.0000 74914.2373 1.18% - 0s 0 0 74914.2373 0 5 75806.0000 74914.2373 1.18% - 0s 0 0 74914.7391 0 5 75806.0000 74914.7391 1.18% - 0s H 0 0 75209.000000 74914.7391 0.39% - 1s 0 0 74914.7391 0 8 75209.0000 74914.7391 0.39% - 1s 0 0 74914.7391 0 6 75209.0000 74914.7391 0.39% - 1s 0 0 74914.7391 0 5 75209.0000 74914.7391 0.39% - 1s 0 0 74914.7391 0 5 75209.0000 74914.7391 0.39% - 1s 0 0 74914.7391 0 5 75209.0000 74914.7391 0.39% - 1s 0 0 74914.7391 0 5 75209.0000 74914.7391 0.39% - 1s 0 0 74914.7755 0 4 75209.0000 74914.7755 0.39% - 1s 0 2 74921.6802 0 4 75209.0000 74921.6802 0.38% - 1s * 14 8 8 75207.000000 74984.7057 0.30% 67.8 2s H 22 4 75125.675676 75009.2877 0.15% 55.2 2s * 23 4 6 75070.000000 75009.2877 0.08% 53.2 2s Cutting planes: Implied bound: 88 Flow cover: 8 Explored 33 nodes (5319 simplex iterations) in 2.33 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.507000000000e+04, best bound 7.507000000000e+04, gap 0.0%