Gurobi 5.0.1 (linux64) logging started Fri Jan 18 03:12:18 2013 Optimize a model with 5800 rows, 35150 columns and 85250 nonzeros Presolve removed 50 rows and 50 columns Presolve time: 0.21s Presolved: 5750 rows, 35100 columns, 80200 nonzeros Variable types: 30100 continuous, 5000 integer (5000 binary) Root relaxation: objective 1.626233e+05, 2771 iterations, 0.10 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 162623.326 0 10 - 162623.326 - - 0s 0 0 162751.847 0 16 - 162751.847 - - 0s 0 0 162757.422 0 14 - 162757.422 - - 0s 0 0 162757.450 0 14 - 162757.450 - - 1s 0 0 162757.452 0 14 - 162757.452 - - 1s 0 0 162757.452 0 14 - 162757.452 - - 1s H 0 0 164271.69524 162757.452 0.92% - 1s H 0 0 163995.32258 162757.452 0.75% - 1s 0 2 162757.452 0 14 163995.323 162757.452 0.75% - 1s H 27 5 162918.18485 162863.281 0.03% 78.6 2s Cutting planes: Gomory: 5 Implied bound: 49 Flow cover: 8 Explored 107 nodes (6294 simplex iterations) in 4.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.629181848492e+05, best bound 1.629059532862e+05, gap 0.0075%