Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:45:07 2013 Optimize a model with 20320 rows, 44060 columns and 148100 nonzeros Presolve removed 20 rows and 20 columns Presolve time: 0.40s Presolved: 20300 rows, 44040 columns, 128080 nonzeros Variable types: 24040 continuous, 20000 integer (20000 binary) Root relaxation: objective 4.636776e+04, 694 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 46367.7551 0 4 - 46367.7551 - - 2s 0 0 46387.6810 0 4 - 46387.6810 - - 2s 0 0 46392.7294 0 6 - 46392.7294 - - 2s 0 0 46396.8476 0 4 - 46396.8476 - - 2s 0 0 46397.4771 0 8 - 46397.4771 - - 2s 0 0 46401.2085 0 4 - 46401.2085 - - 2s 0 0 46404.8772 0 7 - 46404.8772 - - 3s 0 0 46406.5976 0 8 - 46406.5976 - - 3s 0 0 46408.9922 0 6 - 46408.9922 - - 3s 0 0 46411.0428 0 8 - 46411.0428 - - 3s 0 0 46412.2587 0 4 - 46412.2587 - - 3s 0 0 46412.4494 0 8 - 46412.4494 - - 3s 0 0 46414.0348 0 9 - 46414.0348 - - 3s 0 0 46415.9790 0 12 - 46415.9790 - - 4s 0 0 46417.2851 0 5 - 46417.2851 - - 4s 0 0 46418.9202 0 4 - 46418.9202 - - 4s 0 0 46419.3361 0 13 - 46419.3361 - - 4s 0 0 46420.3621 0 13 - 46420.3621 - - 4s 0 0 46420.7746 0 11 - 46420.7746 - - 4s 0 0 46422.0067 0 16 - 46422.0067 - - 5s 0 0 46422.1678 0 12 - 46422.1678 - - 5s 0 0 46422.3007 0 15 - 46422.3007 - - 5s 0 0 46422.7182 0 17 - 46422.7182 - - 5s 0 0 46423.1875 0 11 - 46423.1875 - - 5s 0 0 46423.2574 0 14 - 46423.2574 - - 5s 0 0 46423.4447 0 16 - 46423.4447 - - 6s 0 0 46424.4136 0 11 - 46424.4136 - - 6s 0 0 46424.5318 0 22 - 46424.5318 - - 6s 0 0 46425.5561 0 11 - 46425.5561 - - 6s 0 0 46425.6619 0 12 - 46425.6619 - - 6s 0 0 46425.9312 0 17 - 46425.9312 - - 7s 0 0 46426.5581 0 15 - 46426.5581 - - 7s 0 0 46426.6691 0 11 - 46426.6691 - - 7s 0 0 46426.9780 0 26 - 46426.9780 - - 7s 0 0 46427.6522 0 13 - 46427.6522 - - 7s 0 0 46427.7179 0 11 - 46427.7179 - - 7s 0 0 46427.8445 0 23 - 46427.8445 - - 8s 0 0 46428.1150 0 27 - 46428.1150 - - 8s 0 0 46428.6412 0 27 - 46428.6412 - - 8s 0 0 46428.7011 0 28 - 46428.7011 - - 8s 0 0 46428.7257 0 11 - 46428.7257 - - 8s 0 0 46428.7413 0 28 - 46428.7413 - - 9s 0 0 46428.9037 0 28 - 46428.9037 - - 9s 0 0 46428.9037 0 28 - 46428.9037 - - 10s 0 2 46428.9037 0 28 - 46428.9037 - - 12s * 26 8 13 46653.828109 46653.6097 0.00% 36.9 13s Cutting planes: Gomory: 3 Implied bound: 63 Flow cover: 12 Explored 27 nodes (3488 simplex iterations) in 13.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.665382810945e+04, best bound 4.665360974982e+04, gap 0.0005%