Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:53:20 2012 Optimize a model with 195 rows, 116 columns and 601 nonzeros Presolve time: 0.00s Presolved: 195 rows, 116 columns, 601 nonzeros Variable types: 0 continuous, 116 integer (116 binary) Found heuristic solution: objective 50.0000000 Found heuristic solution: objective 47.0000000 Root relaxation: objective 0.000000e+00, 33 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 19 47.00000 0.00000 100% - 0s 0 0 0.76023 0 21 47.00000 0.76023 98.4% - 0s H 0 0 46.0000000 0.76023 98.3% - 0s 0 0 0.78947 0 21 46.00000 0.78947 98.3% - 0s 0 0 0.78947 0 21 46.00000 0.78947 98.3% - 0s 0 0 0.78947 0 21 46.00000 0.78947 98.3% - 0s 0 2 0.78947 0 21 46.00000 0.78947 98.3% - 0s * 25 15 14 45.0000000 5.93333 86.8% 23.3 0s H 54 31 44.0000000 11.50000 73.9% 22.4 0s * 72 37 12 43.0000000 11.50000 73.3% 19.4 0s * 96 48 13 42.0000000 12.00000 71.4% 18.8 0s * 183 75 14 41.0000000 17.16239 58.1% 16.8 0s * 191 69 13 40.0000000 17.16239 57.1% 16.2 0s * 356 96 11 39.0000000 25.14286 35.5% 14.6 0s * 502 83 10 38.0000000 28.60000 24.7% 13.9 0s Cutting planes: Gomory: 1 Zero half: 8 Explored 783 nodes (10224 simplex iterations) in 0.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.800000000000e+01, best bound 3.800000000000e+01, gap 0.0%