Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:51:52 2012 Optimize a model with 2914 rows, 109 columns and 5828 nonzeros Presolve removed 2016 rows and 0 columns Presolve time: 0.08s Presolved: 898 rows, 109 columns, 5867 nonzeros Variable types: 0 continuous, 109 integer (109 binary) Found heuristic solution: objective 8.0000000 Root relaxation: objective 1.564646e+01, 485 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 15.64646 0 103 8.00000 15.64646 95.6% - 0s H 0 0 9.0000000 15.64646 73.8% - 0s 0 0 15.13050 0 107 9.00000 15.13050 68.1% - 0s 0 0 15.10398 0 107 9.00000 15.10398 67.8% - 0s 0 0 15.06938 0 108 9.00000 15.06938 67.4% - 0s 0 0 15.06057 0 108 9.00000 15.06057 67.3% - 0s 0 0 15.01537 0 107 9.00000 15.01537 66.8% - 0s 0 0 14.97177 0 107 9.00000 14.97177 66.4% - 1s 0 0 14.94090 0 108 9.00000 14.94090 66.0% - 1s 0 0 14.93784 0 108 9.00000 14.93784 66.0% - 1s 0 0 14.93571 0 108 9.00000 14.93571 66.0% - 1s 0 0 14.93046 0 108 9.00000 14.93046 65.9% - 1s 0 0 14.91512 0 108 9.00000 14.91512 65.7% - 1s 0 0 14.90802 0 107 9.00000 14.90802 65.6% - 2s 0 0 14.90351 0 109 9.00000 14.90351 65.6% - 2s 0 0 14.90057 0 108 9.00000 14.90057 65.6% - 2s 0 0 14.88372 0 109 9.00000 14.88372 65.4% - 2s 0 0 14.88094 0 108 9.00000 14.88094 65.3% - 2s 0 0 14.88056 0 108 9.00000 14.88056 65.3% - 2s 0 0 14.88033 0 109 9.00000 14.88033 65.3% - 3s 0 2 14.87926 0 109 9.00000 14.87926 65.3% - 3s Cutting planes: Clique: 114 Explored 406 nodes (22977 simplex iterations) in 4.66 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%