Gurobi 5.6.3 (linux64) logging started Tue Oct 7 21:36:39 2014 Optimize a model with 11449 rows, 11343 columns and 45050 nonzeros Presolve time: 0.20s Presolved: 11449 rows, 11343 columns, 45050 nonzeros Variable types: 1 continuous, 11342 integer (11342 binary) Found heuristic solution: objective 1.1464812 Found heuristic solution: objective 1.1224369 Found heuristic solution: objective 1.1002337 Root relaxation: objective 1.224075e-01, 4743 iterations, 0.55 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.12241 0 978 1.10023 0.12241 88.9% - 0s H 0 0 0.3967445 0.12241 69.1% - 1s 0 0 0.12455 0 940 0.39674 0.12455 68.6% - 2s 0 0 0.12455 0 963 0.39674 0.12455 68.6% - 2s H 0 0 0.3953511 0.12455 68.5% - 2s H 0 0 0.2893692 0.12455 57.0% - 2s 0 0 0.12460 0 931 0.28937 0.12460 56.9% - 3s H 0 0 0.2874919 0.12460 56.7% - 3s H 0 0 0.2815436 0.12460 55.7% - 3s 0 2 0.12491 0 931 0.28154 0.12491 55.6% - 14s H 1 2 0.2230251 0.12491 44.0% 934 15s H 8 6 0.2183191 0.14230 34.8% 117 16s H 36 27 0.2098137 0.14608 30.4% 459 17s * 43 34 31 0.2008463 0.14608 27.3% 426 17s * 48 31 34 0.1986814 0.14608 26.5% 383 17s * 53 28 17 0.1958868 0.14610 25.4% 362 17s * 56 29 18 0.1950238 0.14610 25.1% 346 17s * 58 26 16 0.1938517 0.14958 22.8% 346 17s Cutting planes: Gomory: 5 MIR: 8 Explored 85 nodes (42856 simplex iterations) in 18.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.938517257275e-01, best bound 1.938517257275e-01, gap 0.0%