Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:37:57 2012 Optimize a model with 63 rows, 54 columns and 209 nonzeros Presolve time: 0.00s Presolved: 63 rows, 54 columns, 209 nonzeros Variable types: 0 continuous, 54 integer (54 binary) Found heuristic solution: objective 18.0000000 Found heuristic solution: objective 16.0000000 Root relaxation: objective 0.000000e+00, 30 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 23 16.00000 0.00000 100% - 0s H 0 0 13.0000000 0.00000 100% - 0s H 0 0 12.0000000 0.00000 100% - 0s H 0 0 11.0000000 0.00000 100% - 0s 0 0 0.69565 0 25 11.00000 0.69565 93.7% - 0s H 0 0 9.0000000 0.69565 92.3% - 0s 0 0 0.72549 0 26 9.00000 0.72549 91.9% - 0s 0 0 0.82353 0 27 9.00000 0.82353 90.8% - 0s 0 0 0.83895 0 29 9.00000 0.83895 90.7% - 0s H 0 0 8.0000000 0.83895 89.5% - 0s 0 0 0.89542 0 28 8.00000 0.89542 88.8% - 0s H 0 0 7.0000000 0.89542 87.2% - 0s 0 0 0.91358 0 28 7.00000 0.91358 86.9% - 0s 0 0 0.93056 0 31 7.00000 0.93056 86.7% - 0s H 0 0 5.0000000 0.93056 81.4% - 0s 0 2 0.95726 0 31 5.00000 0.95726 80.9% - 0s Cutting planes: Gomory: 1 Zero half: 13 Mod-K: 4 Explored 24 nodes (369 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%