Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:42 2012 Optimize a model with 1068 rows, 66 columns and 2136 nonzeros Presolve removed 751 rows and 0 columns Presolve time: 0.02s Presolved: 317 rows, 66 columns, 1941 nonzeros Variable types: 0 continuous, 66 integer (66 binary) Found heuristic solution: objective 8.0000000 Root relaxation: objective 1.095276e+01, 151 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 10.95276 0 61 8.00000 10.95276 36.9% - 0s 0 0 10.75461 0 62 8.00000 10.75461 34.4% - 0s 0 0 10.70441 0 63 8.00000 10.70441 33.8% - 0s 0 0 10.68257 0 63 8.00000 10.68257 33.5% - 0s 0 0 10.66241 0 64 8.00000 10.66241 33.3% - 0s 0 0 10.65880 0 63 8.00000 10.65880 33.2% - 0s 0 0 10.65846 0 63 8.00000 10.65846 33.2% - 0s 0 0 10.65846 0 63 8.00000 10.65846 33.2% - 0s 0 2 10.65643 0 63 8.00000 10.65643 33.2% - 0s Cutting planes: Clique: 24 Zero half: 11 Explored 31 nodes (1714 simplex iterations) in 0.22 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%