Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:58:22 2014 Optimize a model with 14536 rows, 7311 columns and 36125 nonzeros Presolve removed 85 rows and 0 columns Presolve time: 0.15s Presolved: 14451 rows, 7311 columns, 36040 nonzeros Variable types: 1 continuous, 7310 integer (7310 binary) Found heuristic solution: objective 0.7847754 Found heuristic solution: objective 0.7803520 Found heuristic solution: objective 0.7726670 Root relaxation: objective 4.598401e-03, 8979 iterations, 0.65 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00460 0 5869 0.77267 0.00460 99.4% - 1s H 0 0 0.4134285 0.00460 98.9% - 2s 0 0 0.00812 0 2560 0.41343 0.00812 98.0% - 4s 0 0 0.01371 0 2328 0.41343 0.01371 96.7% - 5s H 0 0 0.4071712 0.01371 96.6% - 5s 0 0 0.01415 0 2241 0.40717 0.01415 96.5% - 5s H 0 0 0.3769059 0.01415 96.2% - 5s H 0 0 0.3637992 0.01415 96.1% - 5s 0 0 0.02326 0 1820 0.36380 0.02326 93.6% - 6s 0 0 0.02328 0 1806 0.36380 0.02328 93.6% - 6s 0 0 0.02329 0 1800 0.36380 0.02329 93.6% - 6s 0 0 0.02329 0 1797 0.36380 0.02329 93.6% - 6s 0 0 0.02329 0 1799 0.36380 0.02329 93.6% - 6s 0 0 0.02329 0 1611 0.36380 0.02329 93.6% - 7s 0 2 0.02329 0 1566 0.36380 0.02329 93.6% - 9s H 81 4 0.2459880 0.02964 87.9% 105 9s 82 2 0.04711 82 663 0.24599 0.04711 80.8% 118 10s * 108 20 107 0.2412556 0.10936 54.7% 112 10s * 130 31 100 0.2400506 0.14554 39.4% 108 10s * 133 21 99 0.2251316 0.14554 35.4% 106 10s H 140 14 0.2191435 0.15959 27.2% 107 10s * 147 12 94 0.2173757 0.15959 26.6% 103 10s * 155 14 89 0.2166476 0.20544 5.17% 102 10s * 156 7 89 0.2142495 0.20544 4.11% 101 10s Cutting planes: Gomory: 8 Implied bound: 4 MIR: 871 Explored 157 nodes (57398 simplex iterations) in 10.69 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.142494892744e-01, best bound 2.142494892744e-01, gap 0.0%