Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:18 2012 Optimize a model with 101 rows, 92 columns and 342 nonzeros Presolve removed 0 rows and 4 columns Presolve time: 0.00s Presolved: 101 rows, 88 columns, 338 nonzeros Variable types: 0 continuous, 88 integer (87 binary) Found heuristic solution: objective 22.0000000 Root relaxation: objective 0.000000e+00, 60 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 37 22.00000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s H 0 0 13.0000000 0.00000 100% - 0s 0 0 0.43243 0 38 13.00000 0.43243 96.7% - 0s H 0 0 9.0000000 0.43243 95.2% - 0s 0 0 1.00000 0 40 9.00000 1.00000 88.9% - 0s 0 0 1.00000 0 40 9.00000 1.00000 88.9% - 0s 0 0 1.00000 0 33 9.00000 1.00000 88.9% - 0s H 0 0 8.0000000 1.00000 87.5% - 0s 0 2 1.00000 0 31 8.00000 1.00000 87.5% - 0s * 23 9 14 7.0000000 2.06667 70.5% 12.6 0s * 59 6 9 6.0000000 3.32143 44.6% 10.9 0s Cutting planes: Gomory: 1 Explored 72 nodes (1114 simplex iterations) in 0.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%