Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:34 2012 Optimize a model with 65 rows, 66 columns and 226 nonzeros Presolve removed 0 rows and 4 columns Presolve time: 0.00s Presolved: 65 rows, 62 columns, 222 nonzeros Variable types: 0 continuous, 62 integer (61 binary) Found heuristic solution: objective 12.0000000 Root relaxation: objective 0.000000e+00, 40 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 26 12.00000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s H 0 0 8.0000000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s 0 0 0.20000 0 28 7.00000 0.20000 97.1% - 0s 0 0 0.85811 0 30 7.00000 0.85811 87.7% - 0s H 0 0 6.0000000 0.85811 85.7% - 0s 0 0 0.85811 0 30 6.00000 0.85811 85.7% - 0s H 0 0 5.0000000 0.85811 82.8% - 0s 0 2 0.95079 0 30 5.00000 0.95079 81.0% - 0s * 9 7 6 4.0000000 2.21286 44.7% 14.9 0s * 19 1 6 3.0000000 3.00000 0.0% 10.2 0s Cutting planes: Gomory: 4 Explored 20 nodes (367 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%