Optimize a model with 200 rows, 19900 columns and 39800 nonzeros Presolve time: 0.06s Presolved: 200 rows, 19900 columns, 39800 nonzeros Variable types: 0 continuous, 19900 integer (19900 binary) Root relaxation: objective 2.734700e+04, 280 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 27347.0000 0 34 - 27347.0000 - - 0s 0 0 27431.0000 0 18 - 27431.0000 - - 0s 0 0 27458.5000 0 16 - 27458.5000 - - 0s 0 0 27478.0000 0 18 - 27478.0000 - - 0s 0 0 27489.1500 0 44 - 27489.1500 - - 0s 0 0 27511.1500 0 44 - 27511.1500 - - 0s 0 0 27522.4167 0 38 - 27522.4167 - - 0s 0 0 27530.5667 0 43 - 27530.5667 - - 0s 0 0 27551.8333 0 43 - 27551.8333 - - 0s 0 0 27552.5000 0 24 - 27552.5000 - - 0s 0 0 27554.4167 0 21 - 27554.4167 - - 0s 0 0 27555.2500 0 41 - 27555.2500 - - 0s 0 2 27555.4167 0 41 - 27555.4167 - - 1s 588 590 35405.7500 455 25 - 28570.6667 - 4.4 5s * 671 671 521 37188.000000 28570.6667 23.2% 4.5 5s * 674 667 519 37183.000000 28570.6667 23.2% 4.5 5s 811 789 32063.0000 275 88 37183.0000 29209.1667 21.4% 4.5 10s * 863 781 37 29761.000000 29328.6500 1.45% 5.6 13s * 893 707 24 29438.000000 29335.6500 0.35% 5.7 13s * 977 643 20 29437.000000 29398.0000 0.13% 5.9 14s Cutting planes: Gomory: 19 Cover: 7 Zero half: 35 Explored 1063 nodes (6504 simplex iterations) in 14.48 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.943700000000e+04, best bound 2.943600000000e+04, gap 0.0034% Gurobi 5.0.1 (linux64) logging started Sun Nov 25 02:59:41 2012