Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:40:18 2012 Optimize a model with 173 rows, 126 columns and 556 nonzeros Presolve time: 0.00s Presolved: 173 rows, 126 columns, 556 nonzeros Variable types: 0 continuous, 126 integer (126 binary) Found heuristic solution: objective 35.0000000 Found heuristic solution: objective 34.0000000 Root relaxation: objective 0.000000e+00, 71 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 39 34.00000 0.00000 100% - 0s H 0 0 26.0000000 0.00000 100% - 0s 0 0 0.54449 0 40 26.00000 0.54449 97.9% - 0s H 0 0 24.0000000 0.54449 97.7% - 0s 0 0 1.00000 0 42 24.00000 1.00000 95.8% - 0s 0 0 1.00000 0 39 24.00000 1.00000 95.8% - 0s H 0 0 23.0000000 1.00000 95.7% - 0s H 0 0 22.0000000 1.00000 95.5% - 0s 0 2 1.00000 0 39 22.00000 1.00000 95.5% - 0s * 22 19 12 21.0000000 3.02632 85.6% 30.1 0s * 38 25 10 17.0000000 3.09203 81.8% 28.3 0s Cutting planes: Gomory: 3 Explored 325 nodes (6215 simplex iterations) in 0.15 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%