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 - - 2s 84 86 30067.5000 68 11 - 29140.7500 - 8.0 5s * 213 213 169 31269.000000 29140.7500 6.81% 6.1 9s 222 220 31166.6667 177 27 31269.0000 29140.7500 6.81% 6.1 10s * 226 216 181 31172.000000 29140.7500 6.52% 6.0 10s * 253 56 21 29536.000000 29141.7500 1.33% 6.1 11s * 360 116 20 29506.000000 29162.7500 1.16% 6.2 14s 374 122 29453.0000 15 22 29506.0000 29164.7500 1.16% 6.2 15s 510 161 29318.5000 12 40 29506.0000 29229.5000 0.94% 6.1 20s H 551 124 29437.000000 29242.5000 0.66% 6.0 21s 663 166 cutoff 21 29437.0000 29277.0000 0.54% 5.8 25s Cutting planes: User: 20 Gomory: 37 Clique: 4 MIR: 1 Zero half: 25 Explored 800 nodes (6349 simplex iterations) in 29.36 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.943700000000e+04, best bound 2.943700000000e+04, gap 0.0% Gurobi 5.0.1 (linux64) logging started Sun Nov 25 02:59:56 2012