Gurobi 5.6.3 (linux64) logging started Tue Oct 7 22:21:09 2014 Optimize a model with 14884 rows, 14763 columns and 58685 nonzeros Presolve time: 0.27s Presolved: 14884 rows, 14763 columns, 58685 nonzeros Variable types: 1 continuous, 14762 integer (14762 binary) Found heuristic solution: objective 1.0251455 Found heuristic solution: objective 0.9917808 Found heuristic solution: objective 0.9163210 Root relaxation: objective 1.092914e-01, 4884 iterations, 0.82 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.10929 0 1064 0.91632 0.10929 88.1% - 1s H 0 0 0.6068104 0.10929 82.0% - 1s H 0 0 0.1920960 0.10929 43.1% - 2s 0 0 0.12342 0 663 0.19210 0.12342 35.8% - 3s 0 0 0.12342 0 650 0.19210 0.12342 35.8% - 3s 0 0 0.12378 0 727 0.19210 0.12378 35.6% - 3s 0 0 0.12972 0 702 0.19210 0.12972 32.5% - 3s 0 0 0.12973 0 719 0.19210 0.12973 32.5% - 4s 0 0 0.12973 0 669 0.19210 0.12973 32.5% - 4s 0 2 0.12980 0 669 0.19210 0.12980 32.4% - 4s * 25 25 15 0.1911431 0.13631 28.7% 240 4s * 27 23 15 0.1900927 0.13631 28.3% 222 4s * 43 31 12 0.1842139 0.13688 25.7% 168 4s * 44 30 11 0.1829957 0.13688 25.2% 166 4s * 53 33 7 0.1826108 0.14106 22.8% 151 4s * 55 21 8 0.1750386 0.14106 19.4% 146 4s * 63 4 4 0.1725814 0.15939 7.64% 131 4s Cutting planes: Gomory: 5 MIR: 19 Zero half: 3 Explored 64 nodes (27613 simplex iterations) in 4.81 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.725813867345e-01, best bound 1.725813867345e-01, gap 0.0%