Gurobi 5.0.1 (linux64) logging started Wed Apr 24 06:35:28 2013 Optimize a model with 85652 rows, 84732 columns and 338652 nonzeros Presolve removed 4750 rows and 0 columns Presolve time: 0.58s Presolved: 80902 rows, 84732 columns, 329152 nonzeros Variable types: 84640 continuous, 92 integer (92 binary) Root relaxation: objective 1.044170e+05, 16122 iterations, 3.77 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 104417.033 0 3 - 104417.033 - - 4s H 0 0 105791.00000 104417.033 1.30% - 4s 0 0 104417.805 0 5 105791.000 104417.805 1.30% - 5s 0 0 104417.805 0 5 105791.000 104417.805 1.30% - 6s 0 0 104417.805 0 5 105791.000 104417.805 1.30% - 7s 0 0 104417.805 0 3 105791.000 104417.805 1.30% - 14s 0 0 104418.725 0 4 105791.000 104418.725 1.30% - 14s 0 0 104418.725 0 4 105791.000 104418.725 1.30% - 15s 0 0 104418.725 0 4 105791.000 104418.725 1.30% - 15s 0 2 104425.421 0 4 105791.000 104425.421 1.29% - 17s H 4 4 105326.00000 104520.507 0.76% 118 18s H 6 6 104795.61538 104578.750 0.21% 184 18s H 13 7 104789.60000 104578.750 0.20% 113 19s H 14 7 104778.00000 104578.750 0.19% 109 19s * 17 7 13 104754.00000 104578.750 0.17% 93.3 19s * 23 4 10 104671.00000 104642.990 0.03% 83.0 19s Cutting planes: Gomory: 1 Flow cover: 8 Explored 27 nodes (26741 simplex iterations) in 19.95 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.046710000000e+05, best bound 1.046708389599e+05, gap 0.0002%