Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:54:01 2014 Optimize a model with 6889 rows, 6807 columns and 26978 nonzeros Presolve time: 0.15s Presolved: 6889 rows, 6807 columns, 26978 nonzeros Variable types: 1 continuous, 6806 integer (6806 binary) Found heuristic solution: objective 1.0650307 Found heuristic solution: objective 0.9765386 Found heuristic solution: objective 0.7936973 Root relaxation: objective 1.354544e-01, 3273 iterations, 0.31 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.13545 0 688 0.79370 0.13545 82.9% - 0s H 0 0 0.4081538 0.13545 66.8% - 0s H 0 0 0.3553397 0.13545 61.9% - 0s 0 0 0.13803 0 621 0.35534 0.13803 61.2% - 1s 0 0 0.13803 0 674 0.35534 0.13803 61.2% - 1s H 0 0 0.3420210 0.13803 59.6% - 1s H 0 0 0.3244574 0.13803 57.5% - 1s 0 0 0.13803 0 657 0.32446 0.13803 57.5% - 1s 0 0 0.13905 0 672 0.32446 0.13905 57.1% - 1s 0 0 0.13921 0 661 0.32446 0.13921 57.1% - 1s H 0 0 0.2636562 0.13921 47.2% - 1s 0 0 0.14020 0 648 0.26366 0.14020 46.8% - 2s 0 2 0.14020 0 644 0.26366 0.14020 46.8% - 5s H 1 2 0.2433830 0.14020 42.4% 550 5s * 43 29 30 0.2429308 0.15124 37.7% 259 7s H 63 36 0.2299249 0.15134 34.2% 218 7s * 72 35 26 0.2294650 0.15210 33.7% 210 7s * 75 36 27 0.2270696 0.15210 33.0% 205 7s H 90 41 0.2262672 0.15240 32.6% 192 7s * 95 38 18 0.2228891 0.15241 31.6% 189 7s * 102 43 24 0.2197298 0.15250 30.6% 184 7s * 108 41 23 0.2136028 0.15250 28.6% 175 7s * 111 36 23 0.2066712 0.15250 26.2% 171 7s Cutting planes: Gomory: 4 MIR: 6 Explored 148 nodes (35544 simplex iterations) in 7.64 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.066711683150e-01, best bound 2.066711683150e-01, gap 0.0%