Gurobi 5.0.1 (linux64) logging started Fri Jan 18 08:16:01 2013 Optimize a model with 1700 rows, 75650 columns and 651700 nonzeros Presolve removed 50 rows and 50 columns Presolve time: 1.10s Presolved: 1650 rows, 75600 columns, 601650 nonzeros Variable types: 75100 continuous, 500 integer (500 binary) Root relaxation: objective 1.626233e+05, 2462 iterations, 0.22 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 162623.326 0 15 - 162623.326 - - 1s 0 0 162625.324 0 15 - 162625.324 - - 2s 0 0 162625.863 0 15 - 162625.863 - - 2s 0 0 162626.065 0 15 - 162626.065 - - 2s 0 0 162626.065 0 15 - 162626.065 - - 3s 0 0 162626.065 0 15 - 162626.065 - - 3s 0 0 162626.065 0 15 - 162626.065 - - 4s 0 0 162626.065 0 15 - 162626.065 - - 4s 0 0 162626.125 0 15 - 162626.125 - - 4s 0 0 162626.125 0 15 - 162626.125 - - 5s 0 0 162626.162 0 15 - 162626.162 - - 5s 0 0 162626.184 0 15 - 162626.184 - - 6s 0 0 162626.184 0 15 - 162626.184 - - 6s 0 0 162626.186 0 15 - 162626.186 - - 6s 0 0 162626.186 0 15 - 162626.186 - - 7s 0 2 162628.434 0 15 - 162628.434 - - 14s 10 12 162976.829 10 3 - 162647.860 - 47.3 15s * 28 20 27 163523.69252 162647.860 0.54% 31.8 16s H 58 14 162921.28389 162673.729 0.15% 21.2 17s 141 32 162919.849 26 3 162921.284 162888.975 0.02% 15.8 20s * 150 29 35 162920.83841 162888.975 0.02% 15.1 20s * 156 28 38 162920.78357 162888.975 0.02% 14.5 20s Cutting planes: Flow cover: 15 Explored 165 nodes (6757 simplex iterations) in 20.70 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.629207835741e+05, best bound 1.629103292654e+05, gap 0.0064%