Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:42 2012 Optimize a model with 1099 rows, 67 columns and 2198 nonzeros Presolve removed 770 rows and 0 columns Presolve time: 0.02s Presolved: 329 rows, 67 columns, 1986 nonzeros Variable types: 0 continuous, 67 integer (67 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.125371e+01, 158 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 11.25371 0 63 7.00000 11.25371 60.8% - 0s H 0 0 8.0000000 11.25371 40.7% - 0s 0 0 10.95574 0 66 8.00000 10.95574 36.9% - 0s 0 0 10.87880 0 62 8.00000 10.87880 36.0% - 0s 0 0 10.76866 0 66 8.00000 10.76866 34.6% - 0s H 0 0 9.0000000 10.76866 19.7% - 0s 0 0 10.73769 0 66 9.00000 10.73769 19.3% - 0s 0 0 10.73711 0 66 9.00000 10.73711 19.3% - 0s 0 0 10.72999 0 64 9.00000 10.72999 19.2% - 0s 0 0 10.72766 0 67 9.00000 10.72766 19.2% - 0s 0 0 10.72727 0 67 9.00000 10.72727 19.2% - 0s 0 0 10.71770 0 66 9.00000 10.71770 19.1% - 0s 0 0 10.70561 0 67 9.00000 10.70561 19.0% - 0s 0 0 10.70065 0 67 9.00000 10.70065 18.9% - 0s 0 0 10.69716 0 67 9.00000 10.69716 18.9% - 0s 0 0 10.69464 0 67 9.00000 10.69464 18.8% - 0s 0 0 10.69382 0 67 9.00000 10.69382 18.8% - 0s 0 2 10.69322 0 67 9.00000 10.69322 18.8% - 0s Cutting planes: Clique: 29 Zero half: 4 Explored 11 nodes (848 simplex iterations) in 0.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%