Gurobi 5.0.1 (linux64) logging started Wed Apr 24 11:26:52 2013 Optimize a model with 1430 rows, 169130 columns and 338130 nonzeros Presolve time: 0.37s Presolved: 1430 rows, 169130 columns, 338130 nonzeros Variable types: 169000 continuous, 130 integer (130 binary) Root relaxation: objective 1.736129e+05, 5346 iterations, 0.28 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 173612.923 0 7 - 173612.923 - - 0s H 0 0 191183.00000 173612.923 9.19% - 1s 0 0 173944.691 0 4 191183.000 173944.691 9.02% - 1s H 0 0 179779.07810 173944.691 3.25% - 1s H 0 0 179262.00000 173944.691 2.97% - 2s 0 0 173965.536 0 3 179262.000 173965.536 2.95% - 2s H 0 0 179026.00000 173965.536 2.83% - 2s 0 0 173971.717 0 3 179026.000 173971.717 2.82% - 2s 0 0 173976.072 0 2 179026.000 173976.072 2.82% - 3s H 0 0 178990.00000 173976.072 2.80% - 3s 0 0 173976.180 0 2 178990.000 173976.180 2.80% - 3s 0 0 173976.180 0 2 178990.000 173976.180 2.80% - 3s 0 0 173976.180 0 7 178990.000 173976.180 2.80% - 5s 0 0 173976.180 0 4 178990.000 173976.180 2.80% - 5s 0 0 173976.180 0 4 178990.000 173976.180 2.80% - 6s 0 0 173976.180 0 2 178990.000 173976.180 2.80% - 6s 0 0 173976.180 0 3 178990.000 173976.180 2.80% - 6s 0 0 173976.180 0 2 178990.000 173976.180 2.80% - 7s 0 0 173976.180 0 2 178990.000 173976.180 2.80% - 7s 0 0 173976.180 0 2 178990.000 173976.180 2.80% - 7s 0 2 173977.487 0 2 178990.000 173977.487 2.80% - 8s H 4 4 178398.82632 174152.611 2.38% 210 9s 5 7 174348.575 3 3 178398.826 174153.885 2.38% 303 10s H 7 7 176918.04762 174153.885 1.56% 243 10s H 12 10 174868.00000 174153.885 0.41% 166 10s H 13 10 174786.40107 174153.885 0.36% 154 10s H 16 12 174742.00000 174153.885 0.34% 129 10s * 19 12 16 174727.00000 174153.885 0.33% 114 10s * 30 11 11 174439.00000 174311.092 0.07% 94.3 11s Cutting planes: Implied bound: 131 Flow cover: 3 Explored 53 nodes (15308 simplex iterations) in 12.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.744390000000e+05, best bound 1.744219836299e+05, gap 0.0098%