Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:26:57 2014 Optimize a model with 1177 rows, 601 columns and 2880 nonzeros Presolve removed 24 rows and 0 columns Presolve time: 0.02s Presolved: 1153 rows, 601 columns, 2856 nonzeros Variable types: 1 continuous, 600 integer (600 binary) Found heuristic solution: objective 0.8877506 Found heuristic solution: objective 0.6688644 Found heuristic solution: objective 0.6533039 Root relaxation: objective 2.002667e-02, 676 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.02003 0 424 0.65330 0.02003 96.9% - 0s H 0 0 0.5703301 0.02003 96.5% - 0s 0 0 0.02400 0 358 0.57033 0.02400 95.8% - 0s 0 0 0.23441 0 175 0.57033 0.23441 58.9% - 0s H 0 0 0.4973833 0.23441 52.9% - 0s 0 0 0.23663 0 180 0.49738 0.23663 52.4% - 0s H 0 0 0.4594747 0.23663 48.5% - 0s H 0 0 0.4125059 0.23663 42.6% - 0s H 0 0 0.4052647 0.23663 41.6% - 0s 0 0 0.25009 0 102 0.40526 0.25009 38.3% - 0s H 0 0 0.3862628 0.25009 35.3% - 0s H 0 0 0.3669710 0.25009 31.8% - 0s 0 1 0.25009 0 102 0.36697 0.25009 31.8% - 0s H 1 1 0.3577087 0.25009 30.1% 151 0s Explored 1 nodes (3556 simplex iterations) in 0.42 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.577087022985e-01, best bound 3.577087022985e-01, gap 0.0%