Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:12 2012 Optimize a model with 137 rows, 103 columns and 443 nonzeros Presolve time: 0.00s Presolved: 137 rows, 103 columns, 443 nonzeros Variable types: 0 continuous, 103 integer (103 binary) Found heuristic solution: objective 32.0000000 Root relaxation: objective 0.000000e+00, 54 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 34 32.00000 0.00000 100% - 0s H 0 0 31.0000000 0.00000 100% - 0s H 0 0 30.0000000 0.00000 100% - 0s H 0 0 29.0000000 0.00000 100% - 0s H 0 0 25.0000000 0.00000 100% - 0s 0 0 0.51000 0 37 25.00000 0.51000 98.0% - 0s H 0 0 24.0000000 0.51000 97.9% - 0s H 0 0 23.0000000 0.51000 97.8% - 0s H 0 0 22.0000000 0.51000 97.7% - 0s 0 0 0.91750 0 40 22.00000 0.91750 95.8% - 0s H 0 0 20.0000000 0.91750 95.4% - 0s H 0 0 19.0000000 0.91750 95.2% - 0s 0 0 0.92209 0 41 19.00000 0.92209 95.1% - 0s 0 0 0.92209 0 41 19.00000 0.92209 95.1% - 0s H 0 0 18.0000000 0.92209 94.9% - 0s 0 2 0.92354 0 41 18.00000 0.92354 94.9% - 0s * 39 27 14 17.0000000 2.62001 84.6% 18.6 0s H 54 34 16.0000000 3.92590 75.5% 18.2 0s * 114 39 10 15.0000000 7.43736 50.4% 18.1 0s * 148 15 6 13.0000000 8.27895 36.3% 17.7 0s Cutting planes: Gomory: 4 Zero half: 1 Mod-K: 2 Explored 168 nodes (3075 simplex iterations) in 0.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.300000000000e+01, best bound 1.300000000000e+01, gap 0.0%