Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:40 2012 Optimize a model with 1069 rows, 65 columns and 2138 nonzeros Presolve removed 742 rows and 0 columns Presolve time: 0.02s Presolved: 327 rows, 65 columns, 1999 nonzeros Variable types: 0 continuous, 65 integer (65 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.044618e+01, 194 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 10.44618 0 61 7.00000 10.44618 49.2% - 0s 0 0 10.22606 0 60 7.00000 10.22606 46.1% - 0s 0 0 10.17513 0 62 7.00000 10.17513 45.4% - 0s 0 0 10.12724 0 61 7.00000 10.12724 44.7% - 0s H 0 0 8.0000000 10.12724 26.6% - 0s 0 0 10.11265 0 62 8.00000 10.11265 26.4% - 0s 0 0 10.10449 0 62 8.00000 10.10449 26.3% - 0s 0 0 10.09836 0 63 8.00000 10.09836 26.2% - 0s 0 0 10.09568 0 63 8.00000 10.09568 26.2% - 0s 0 2 10.09559 0 63 8.00000 10.09559 26.2% - 0s Cutting planes: Gomory: 1 Clique: 23 Zero half: 10 Explored 19 nodes (1199 simplex iterations) in 0.20 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%