Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:12 2012 Optimize a model with 41 rows, 30 columns and 130 nonzeros Presolve time: 0.00s Presolved: 41 rows, 30 columns, 130 nonzeros Variable types: 0 continuous, 30 integer (30 binary) Found heuristic solution: objective 11.0000000 Found heuristic solution: objective 10.0000000 Root relaxation: objective 0.000000e+00, 15 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 10 10.00000 0.00000 100% - 0s 0 0 0.50000 0 11 10.00000 0.50000 95.0% - 0s 0 0 0.97143 0 15 10.00000 0.97143 90.3% - 0s 0 0 1.00000 0 12 10.00000 1.00000 90.0% - 0s 0 0 1.20000 0 14 10.00000 1.20000 88.0% - 0s 0 0 1.32000 0 17 10.00000 1.32000 86.8% - 0s H 0 0 9.0000000 1.32000 85.3% - 0s 0 0 1.40000 0 13 9.00000 1.40000 84.4% - 0s 0 0 1.40000 0 13 9.00000 1.40000 84.4% - 0s 0 2 1.40000 0 13 9.00000 1.40000 84.4% - 0s * 11 7 5 8.0000000 3.47273 56.6% 9.6 0s Cutting planes: Gomory: 1 Zero half: 7 Explored 32 nodes (274 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%