Gurobi 5.0.1 (linux64) logging started Wed Apr 24 05:39:53 2013 Optimize a model with 80189 rows, 79299 columns and 316929 nonzeros Presolve removed 4443 rows and 0 columns Presolve time: 0.54s Presolved: 75746 rows, 79299 columns, 308043 nonzeros Variable types: 79210 continuous, 89 integer (89 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 20631 1.2255088e+05 1.236122e+03 0.000000e+00 5s 21364 1.2270433e+05 0.000000e+00 0.000000e+00 5s Root relaxation: objective 1.227043e+05, 21364 iterations, 5.44 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 122704.329 0 2 - 122704.329 - - 6s H 0 0 123539.00000 122704.329 0.68% - 6s 0 0 122706.018 0 3 123539.000 122706.018 0.67% - 6s 0 0 122706.018 0 3 123539.000 122706.018 0.67% - 7s 0 0 122706.018 0 2 123539.000 122706.018 0.67% - 13s 0 0 122706.028 0 3 123539.000 122706.028 0.67% - 14s 0 0 122706.028 0 3 123539.000 122706.028 0.67% - 14s 0 2 122712.853 0 3 123539.000 122712.853 0.67% - 16s H 12 9 123415.10000 122784.135 0.51% 179 18s * 16 7 11 123394.00000 122784.135 0.49% 165 18s H 25 10 123298.20000 122791.394 0.41% 134 19s H 26 11 123285.27273 122791.394 0.40% 131 19s * 28 10 12 123272.00000 122791.394 0.39% 125 19s 36 11 123095.737 5 1 123272.000 122891.865 0.31% 126 20s H 44 7 123112.16071 122891.865 0.18% 118 20s * 47 7 7 123082.00000 122897.786 0.15% 117 20s Cutting planes: Gomory: 2 Flow cover: 4 Explored 54 nodes (35523 simplex iterations) in 20.80 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.230820000000e+05, best bound 1.230820000000e+05, gap 0.0%