Gurobi 5.6.3 (linux64) logging started Tue Oct 7 21:01:55 2014 Optimize a model with 15577 rows, 7833 columns and 38720 nonzeros Presolve removed 88 rows and 0 columns Presolve time: 0.17s Presolved: 15489 rows, 7833 columns, 38632 nonzeros Variable types: 1 continuous, 7832 integer (7832 binary) Found heuristic solution: objective 0.9909665 Found heuristic solution: objective 0.9805048 Found heuristic solution: objective 0.9098506 Root relaxation: objective 4.029529e-03, 9893 iterations, 1.75 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00403 0 7244 0.90985 0.00403 100% - 2s H 0 0 0.9086286 0.00403 100% - 4s H 0 0 0.4170525 0.00403 99.0% - 4s 0 0 0.00769 0 2765 0.41705 0.00769 98.2% - 7s 0 0 0.01291 0 2509 0.41705 0.01291 96.9% - 8s H 0 0 0.4087978 0.01291 96.8% - 8s 0 0 0.01331 0 2405 0.40880 0.01331 96.7% - 8s H 0 0 0.4007621 0.01331 96.7% - 8s H 0 0 0.3831676 0.01331 96.5% - 8s 0 0 0.02104 0 2120 0.38317 0.02104 94.5% - 9s 0 0 0.02105 0 2111 0.38317 0.02105 94.5% - 9s H 0 0 0.3825624 0.02105 94.5% - 9s 0 0 0.02105 0 2110 0.38256 0.02105 94.5% - 9s H 0 0 0.3665878 0.02105 94.3% - 9s H 0 0 0.3598000 0.02105 94.1% - 9s 0 0 0.02198 0 1788 0.35980 0.02198 93.9% - 9s 0 0 0.02201 0 1830 0.35980 0.02201 93.9% - 9s 0 0 0.02201 0 1711 0.35980 0.02201 93.9% - 10s H 0 0 0.3441589 0.02201 93.6% - 10s H 0 0 0.3422246 0.02201 93.6% - 12s H 0 0 0.3421428 0.02201 93.6% - 13s 0 2 0.02318 0 1505 0.34214 0.02318 93.2% - 13s * 92 92 92 0.3391237 0.10683 68.5% 180 14s H 108 97 0.3255062 0.12653 61.1% 173 15s H 135 48 0.2660772 0.12653 52.4% 152 15s * 143 50 125 0.2644528 0.12653 52.2% 149 15s * 149 50 127 0.2605937 0.12653 51.4% 144 15s * 151 45 127 0.2551680 0.12653 50.4% 142 15s H 162 37 0.2420843 0.12846 46.9% 143 15s * 173 44 93 0.2369967 0.12846 45.8% 138 15s * 175 38 94 0.2296632 0.12846 44.1% 137 15s * 182 35 83 0.2296279 0.13168 42.7% 136 15s * 185 32 83 0.2263444 0.13168 41.8% 134 15s H 189 27 0.2202328 0.13168 40.2% 135 15s * 192 21 78 0.2127153 0.13739 35.4% 139 15s Cutting planes: Gomory: 8 Implied bound: 3 MIR: 894 Explored 214 nodes (92540 simplex iterations) in 16.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.127152795480e-01, best bound 2.127152795480e-01, gap 0.0%