Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:39:51 2013 Optimize a model with 5160 rows, 11030 columns and 37050 nonzeros Presolve removed 10 rows and 10 columns Presolve time: 0.21s Presolved: 5150 rows, 11020 columns, 32040 nonzeros Variable types: 6020 continuous, 5000 integer (5000 binary) Root relaxation: objective 2.199252e+04, 141 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 21992.5209 0 4 - 21992.5209 - - 0s 0 0 22006.1395 0 2 - 22006.1395 - - 0s 0 0 22010.2038 0 4 - 22010.2038 - - 0s 0 0 22013.9873 0 4 - 22013.9873 - - 0s 0 0 22017.5118 0 4 - 22017.5118 - - 0s 0 0 22017.8157 0 2 - 22017.8157 - - 1s 0 0 22018.7146 0 4 - 22018.7146 - - 1s 0 0 22019.9959 0 4 - 22019.9959 - - 1s 0 0 22020.4083 0 6 - 22020.4083 - - 1s 0 0 22021.5728 0 4 - 22021.5728 - - 1s 0 0 22022.7574 0 2 - 22022.7574 - - 1s 0 0 22023.0868 0 13 - 22023.0868 - - 1s 0 0 22024.7045 0 4 - 22024.7045 - - 1s 0 0 22024.8569 0 5 - 22024.8569 - - 1s 0 0 22025.4892 0 4 - 22025.4892 - - 1s 0 0 22025.8965 0 7 - 22025.8965 - - 1s 0 0 22026.3533 0 4 - 22026.3533 - - 1s 0 0 22026.4199 0 8 - 22026.4199 - - 1s 0 0 22026.7577 0 2 - 22026.7577 - - 1s 0 0 22026.7864 0 2 - 22026.7864 - - 1s 0 0 22027.1847 0 7 - 22027.1847 - - 1s 0 0 22027.2881 0 10 - 22027.2881 - - 1s 0 0 22028.2736 0 6 - 22028.2736 - - 1s 0 0 22028.5710 0 2 - 22028.5710 - - 1s 0 0 22028.6994 0 12 - 22028.6994 - - 1s 0 0 22028.8780 0 6 - 22028.8780 - - 1s 0 0 22029.0425 0 14 - 22029.0425 - - 1s 0 0 22029.2058 0 2 - 22029.2058 - - 1s 0 0 22029.6038 0 19 - 22029.6038 - - 1s 0 0 22030.2368 0 2 - 22030.2368 - - 1s 0 0 22030.3056 0 14 - 22030.3056 - - 1s 0 0 22031.3783 0 19 - 22031.3783 - - 2s 0 0 22031.4160 0 16 - 22031.4160 - - 2s 0 0 22031.4764 0 18 - 22031.4764 - - 2s 0 0 22031.6590 0 14 - 22031.6590 - - 2s 0 0 22031.6768 0 14 - 22031.6768 - - 2s 0 0 22031.6892 0 14 - 22031.6892 - - 2s 0 0 22031.6892 0 14 - 22031.6892 - - 2s 0 2 22031.6892 0 14 - 22031.6892 - - 3s * 3 1 2 22791.927631 22075.7384 3.14% 81.0 3s * 19 5 10 22134.958679 22134.9579 0.00% 17.9 3s Cutting planes: Gomory: 1 Implied bound: 47 Flow cover: 11 Explored 20 nodes (1070 simplex iterations) in 3.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.213495867877e+04, best bound 2.213495788885e+04, gap 0.0000%