Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:51:30 2012 Optimize a model with 2922 rows, 108 columns and 5844 nonzeros Presolve removed 2058 rows and 0 columns Presolve time: 0.09s Presolved: 864 rows, 108 columns, 5912 nonzeros Variable types: 0 continuous, 108 integer (108 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.523231e+01, 453 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 15.23231 0 104 7.00000 15.23231 118% - 0s H 0 0 8.0000000 15.23231 90.4% - 0s 0 0 14.64052 0 105 8.00000 14.64052 83.0% - 0s 0 0 14.49834 0 106 8.00000 14.49834 81.2% - 0s 0 0 14.47480 0 106 8.00000 14.47480 80.9% - 0s H 0 0 9.0000000 14.47480 60.8% - 0s 0 0 14.46471 0 107 9.00000 14.46471 60.7% - 0s 0 0 14.46075 0 106 9.00000 14.46075 60.7% - 0s 0 0 14.45552 0 107 9.00000 14.45552 60.6% - 1s 0 0 14.45534 0 107 9.00000 14.45534 60.6% - 1s 0 0 14.45527 0 107 9.00000 14.45527 60.6% - 1s 0 2 14.44938 0 107 9.00000 14.44938 60.5% - 1s * 233 14 8 10.0000000 11.48467 14.8% 63.0 2s Cutting planes: Clique: 82 Explored 248 nodes (15656 simplex iterations) in 2.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%