Gurobi 5.6.3 (linux64) logging started Tue Oct 7 22:59:50 2014 Optimize a model with 17689 rows, 17557 columns and 69828 nonzeros Presolve time: 0.36s Presolved: 17689 rows, 17557 columns, 69828 nonzeros Variable types: 1 continuous, 17556 integer (17556 binary) Found heuristic solution: objective 1.0685777 Found heuristic solution: objective 1.0664874 Found heuristic solution: objective 0.8482276 Root relaxation: objective 1.064364e-01, 5919 iterations, 0.95 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.10644 0 1209 0.84823 0.10644 87.5% - 1s H 0 0 0.3946411 0.10644 73.0% - 1s H 0 0 0.1892734 0.10644 43.8% - 1s 0 0 0.10822 0 1138 0.18927 0.10822 42.8% - 2s 0 0 0.10822 0 1151 0.18927 0.10822 42.8% - 3s 0 0 0.11085 0 1094 0.18927 0.11085 41.4% - 3s 0 0 0.11285 0 1075 0.18927 0.11285 40.4% - 3s 0 0 0.11330 0 1010 0.18927 0.11330 40.1% - 3s 0 0 0.11330 0 1013 0.18927 0.11330 40.1% - 3s 0 0 0.11330 0 952 0.18927 0.11330 40.1% - 4s H 0 0 0.1853056 0.11330 38.9% - 4s H 0 0 0.1829082 0.11330 38.1% - 4s 0 2 0.11427 0 935 0.18291 0.11427 37.5% - 4s 25 27 0.15487 17 378 0.18291 0.11585 36.7% 332 5s H 27 27 0.1779144 0.11585 34.9% 322 5s * 30 26 19 0.1752187 0.11585 33.9% 330 5s * 68 32 9 0.1741850 0.11611 33.3% 247 5s * 70 31 10 0.1701690 0.11611 31.8% 240 5s H 82 25 0.1697281 0.11736 30.9% 246 5s * 117 8 15 0.1684278 0.14866 11.7% 235 6s Cutting planes: Gomory: 3 MIR: 26 Mod-K: 1 Explored 128 nodes (47925 simplex iterations) in 6.33 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.684277953548e-01, best bound 1.684277953548e-01, gap 0.0%