Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:11:34 2012 Optimize a model with 4436 rows, 133 columns and 8872 nonzeros Presolve removed 3214 rows and 0 columns Presolve time: 0.16s Presolved: 1222 rows, 133 columns, 8674 nonzeros Variable types: 0 continuous, 133 integer (133 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.685573e+01, 644 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 16.85573 0 132 7.00000 16.85573 141% - 0s H 0 0 9.0000000 16.85573 87.3% - 0s 0 0 16.59507 0 133 9.00000 16.59507 84.4% - 0s 0 0 16.51402 0 133 9.00000 16.51402 83.5% - 0s 0 0 16.45972 0 133 9.00000 16.45972 82.9% - 0s 0 0 16.41230 0 133 9.00000 16.41230 82.4% - 1s 0 0 16.37806 0 132 9.00000 16.37806 82.0% - 1s 0 0 16.37662 0 132 9.00000 16.37662 82.0% - 1s 0 0 16.37424 0 132 9.00000 16.37424 81.9% - 1s 0 0 16.37126 0 132 9.00000 16.37126 81.9% - 1s 0 0 16.36767 0 133 9.00000 16.36767 81.9% - 2s 0 0 16.36718 0 133 9.00000 16.36718 81.9% - 2s 0 0 16.36268 0 133 9.00000 16.36268 81.8% - 2s 0 0 16.35626 0 132 9.00000 16.35626 81.7% - 2s 0 0 16.35544 0 133 9.00000 16.35544 81.7% - 2s 0 0 16.35168 0 132 9.00000 16.35168 81.7% - 3s 0 0 16.34316 0 132 9.00000 16.34316 81.6% - 3s 0 0 16.34101 0 133 9.00000 16.34101 81.6% - 3s 0 0 16.34047 0 133 9.00000 16.34047 81.6% - 3s 0 2 16.33534 0 133 9.00000 16.33534 81.5% - 4s 139 109 12.68388 4 60 9.00000 15.87539 76.4% 83.1 5s * 622 162 6 10.0000000 13.01921 30.2% 67.3 8s Cutting planes: Clique: 113 Explored 824 nodes (51313 simplex iterations) in 8.72 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%