Gurobi 5.6.3 (linux64) logging started Tue Oct 7 21:04:31 2014 Optimize a model with 16291 rows, 8191 columns and 40500 nonzeros Presolve removed 90 rows and 0 columns Presolve time: 0.17s Presolved: 16201 rows, 8191 columns, 40410 nonzeros Variable types: 1 continuous, 8190 integer (8190 binary) Found heuristic solution: objective 0.9970018 Found heuristic solution: objective 0.9945550 Found heuristic solution: objective 0.7506075 Root relaxation: objective 4.313701e-03, 10015 iterations, 2.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00431 0 6424 0.75061 0.00431 99.4% - 2s H 0 0 0.4488464 0.00431 99.0% - 4s 0 0 0.00682 0 3178 0.44885 0.00682 98.5% - 6s 0 0 0.01133 0 3034 0.44885 0.01133 97.5% - 7s H 0 0 0.4051973 0.01133 97.2% - 8s 0 0 0.01235 0 2619 0.40520 0.01235 97.0% - 8s H 0 0 0.3794617 0.01235 96.7% - 8s 0 0 0.01869 0 2264 0.37946 0.01869 95.1% - 9s H 0 0 0.3748296 0.01869 95.0% - 10s 0 1 0.01869 0 2131 0.37483 0.01869 95.0% - 40s H 1 1 0.3673530 0.01869 94.9% 3168 47s H 3 2 0.3665279 0.02397 93.5% 1056 49s 4 2 0.02397 0 1737 0.36653 0.02397 93.5% 792 50s H 4 2 0.3645145 0.02409 93.4% 792 50s 13 8 0.03209 0 1599 0.36451 0.03209 91.2% 244 55s H 40 27 0.3476676 0.03331 90.4% 1592 59s 49 38 0.25646 29 298 0.34767 0.03572 89.7% 1462 60s H 67 47 0.3247306 0.03725 88.5% 1220 61s H 94 38 0.2845348 0.04780 83.2% 1062 63s 117 63 0.27514 63 452 0.28453 0.07036 75.3% 970 65s H 121 55 0.2758107 0.07292 73.6% 947 65s H 148 33 0.2474309 0.14517 41.3% 831 66s * 151 34 80 0.2451536 0.14517 40.8% 824 66s H 175 36 0.2343635 0.15116 35.5% 719 66s * 185 30 80 0.2320790 0.17738 23.6% 685 66s * 187 23 81 0.2236374 0.17738 20.7% 678 66s Cutting planes: Gomory: 13 Implied bound: 6 MIR: 938 Explored 211 nodes (190401 simplex iterations) in 67.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.236374211966e-01, best bound 2.236374211966e-01, gap 0.0%