Gurobi 5.6.3 (linux64) logging started Wed Oct 8 02:06:52 2014 Optimize a model with 37636 rows, 37443 columns and 149189 nonzeros Presolve time: 1.00s Presolved: 37636 rows, 37443 columns, 149189 nonzeros Variable types: 1 continuous, 37442 integer (37442 binary) Found heuristic solution: objective 0.7914528 Found heuristic solution: objective 0.7902668 Found heuristic solution: objective 0.7371578 Root relaxation: objective 8.891606e-02, 8924 iterations, 2.59 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.08892 0 1761 0.73716 0.08892 87.9% - 4s H 0 0 0.1498912 0.08892 40.7% - 9s 0 0 0.09793 0 1108 0.14989 0.09793 34.7% - 12s 0 0 0.09793 0 1111 0.14989 0.09793 34.7% - 13s H 0 0 0.1497282 0.09793 34.6% - 13s 0 0 0.10015 0 1050 0.14973 0.10015 33.1% - 13s 0 0 0.10684 0 1023 0.14973 0.10684 28.6% - 14s H 0 0 0.1475359 0.10684 27.6% - 14s 0 0 0.10800 0 977 0.14754 0.10800 26.8% - 14s 0 0 0.10810 0 1049 0.14754 0.10810 26.7% - 14s 0 0 0.10841 0 1067 0.14754 0.10841 26.5% - 14s 0 0 0.10845 0 1104 0.14754 0.10845 26.5% - 14s 0 0 0.10849 0 1011 0.14754 0.10849 26.5% - 14s 0 0 0.10849 0 990 0.14754 0.10849 26.5% - 14s 0 0 0.10850 0 1036 0.14754 0.10850 26.5% - 14s 0 0 0.10850 0 1036 0.14754 0.10850 26.5% - 15s 0 2 0.10850 0 1036 0.14754 0.10850 26.5% - 15s H 27 27 0.1427548 0.10949 23.3% 379 16s * 35 29 20 0.1416904 0.10949 22.7% 326 16s H 54 34 0.1406357 0.10949 22.1% 266 16s Cutting planes: Gomory: 2 MIR: 84 Zero half: 17 Explored 99 nodes (63079 simplex iterations) in 17.63 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.406356860357e-01, best bound 1.406356860357e-01, gap 0.0%