Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:56:58 2012 Optimize a model with 205 rows, 151 columns and 661 nonzeros Presolve time: 0.00s Presolved: 205 rows, 151 columns, 661 nonzeros Variable types: 0 continuous, 151 integer (151 binary) Found heuristic solution: objective 41.0000000 Root relaxation: objective 0.000000e+00, 92 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 49 41.00000 0.00000 100% - 0s H 0 0 36.0000000 0.00000 100% - 0s H 0 0 35.0000000 0.00000 100% - 0s H 0 0 27.0000000 0.00000 100% - 0s 0 0 0.77336 0 51 27.00000 0.77336 97.1% - 0s 0 0 0.81633 0 51 27.00000 0.81633 97.0% - 0s 0 0 0.85157 0 51 27.00000 0.85157 96.8% - 0s H 0 0 23.0000000 0.85157 96.3% - 0s H 0 0 22.0000000 0.85157 96.1% - 0s 0 0 0.87476 0 52 22.00000 0.87476 96.0% - 0s 0 0 0.87598 0 53 22.00000 0.87598 96.0% - 0s 0 2 0.95261 0 53 22.00000 0.95261 95.7% - 0s * 15 14 9 20.0000000 4.43609 77.8% 35.8 0s * 89 28 9 18.0000000 10.81250 39.9% 19.9 0s * 101 19 9 16.0000000 10.89474 31.9% 18.5 0s Cutting planes: Gomory: 1 Mod-K: 5 Explored 133 nodes (2870 simplex iterations) in 0.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.600000000000e+01, best bound 1.600000000000e+01, gap 0.0%