Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:28 2012 Optimize a model with 95 rows, 61 columns and 296 nonzeros Presolve time: 0.00s Presolved: 95 rows, 61 columns, 296 nonzeros Variable types: 0 continuous, 61 integer (61 binary) Found heuristic solution: objective 28.0000000 Found heuristic solution: objective 25.0000000 Root relaxation: objective 0.000000e+00, 19 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 14 25.00000 0.00000 100% - 0s 0 0 0.58333 0 15 25.00000 0.58333 97.7% - 0s H 0 0 23.0000000 0.58333 97.5% - 0s 0 0 1.22222 0 17 23.00000 1.22222 94.7% - 0s 0 0 1.33333 0 17 23.00000 1.33333 94.2% - 0s 0 0 1.41667 0 17 23.00000 1.41667 93.8% - 0s 0 0 1.45139 0 19 23.00000 1.45139 93.7% - 0s 0 0 1.56944 0 17 23.00000 1.56944 93.2% - 0s 0 0 1.58333 0 17 23.00000 1.58333 93.1% - 0s 0 0 1.58333 0 17 23.00000 1.58333 93.1% - 0s H 0 0 22.0000000 1.58333 92.8% - 0s H 0 0 19.0000000 1.58333 91.7% - 0s 0 2 1.92381 0 17 19.00000 1.92381 89.9% - 0s * 12 8 6 18.0000000 5.05952 71.9% 16.0 0s * 32 8 7 17.0000000 5.22222 69.3% 11.2 0s Cutting planes: Gomory: 2 Zero half: 5 Explored 76 nodes (844 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%