Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:53:06 2013 Optimize a model with 10320 rows, 24060 columns and 78100 nonzeros Presolve removed 20 rows and 20 columns Presolve time: 0.39s Presolved: 10300 rows, 24040 columns, 68080 nonzeros Variable types: 14040 continuous, 10000 integer (10000 binary) Root relaxation: objective 4.013975e+04, 533 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 40139.7487 0 4 - 40139.7487 - - 1s 0 0 40143.3556 0 4 - 40143.3556 - - 1s 0 0 40144.6622 0 4 - 40144.6622 - - 1s 0 0 40145.2758 0 4 - 40145.2758 - - 1s 0 0 40146.5957 0 7 - 40146.5957 - - 1s 0 0 40147.3239 0 4 - 40147.3239 - - 1s 0 0 40147.6439 0 10 - 40147.6439 - - 1s 0 0 40148.3816 0 4 - 40148.3816 - - 1s 0 0 40148.7832 0 9 - 40148.7832 - - 1s 0 0 40149.4199 0 5 - 40149.4199 - - 2s 0 0 40149.7261 0 8 - 40149.7261 - - 2s 0 0 40149.8214 0 8 - 40149.8214 - - 2s 0 0 40149.9209 0 9 - 40149.9209 - - 2s 0 0 40150.0550 0 9 - 40150.0550 - - 2s 0 0 40150.0762 0 4 - 40150.0762 - - 2s 0 0 40150.2795 0 5 - 40150.2795 - - 2s 0 0 40150.3409 0 4 - 40150.3409 - - 2s 0 0 40150.3869 0 11 - 40150.3869 - - 2s 0 0 40150.4297 0 6 - 40150.4297 - - 2s 0 0 40150.4345 0 9 - 40150.4345 - - 2s 0 0 40150.4714 0 5 - 40150.4714 - - 2s 0 0 40150.4797 0 5 - 40150.4797 - - 2s 0 0 40150.4797 0 5 - 40150.4797 - - 3s 0 2 40150.4797 0 5 - 40150.4797 - - 4s * 38 6 19 40195.186168 40195.1862 0.0% 40.8 4s Cutting planes: Gomory: 2 Implied bound: 45 Flow cover: 2 Explored 39 nodes (2775 simplex iterations) in 4.96 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.019518616787e+04, best bound 4.019518616787e+04, gap 0.0%