Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:12:54 2012 Optimize a model with 4442 rows, 134 columns and 8884 nonzeros Presolve removed 3196 rows and 0 columns Presolve time: 0.16s Presolved: 1246 rows, 134 columns, 8724 nonzeros Variable types: 0 continuous, 134 integer (134 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.772288e+01, 631 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 17.72288 0 132 7.00000 17.72288 153% - 0s H 0 0 8.0000000 17.72288 122% - 0s 0 0 17.23304 0 134 8.00000 17.23304 115% - 0s 0 0 17.20809 0 134 8.00000 17.20809 115% - 0s 0 0 17.18907 0 134 8.00000 17.18907 115% - 0s H 0 0 9.0000000 17.18907 91.0% - 0s 0 0 17.13285 0 134 9.00000 17.13285 90.4% - 0s 0 0 17.10168 0 134 9.00000 17.10168 90.0% - 1s H 0 0 10.0000000 17.10168 71.0% - 1s 0 0 17.05055 0 134 10.00000 17.05055 70.5% - 1s 0 0 17.01099 0 133 10.00000 17.01099 70.1% - 1s 0 0 17.00158 0 133 10.00000 17.00158 70.0% - 1s 0 0 16.99252 0 134 10.00000 16.99252 69.9% - 1s 0 0 16.97964 0 134 10.00000 16.97964 69.8% - 2s 0 0 16.94742 0 133 10.00000 16.94742 69.5% - 2s 0 0 16.93586 0 133 10.00000 16.93586 69.4% - 2s 0 0 16.93045 0 133 10.00000 16.93045 69.3% - 2s 0 0 16.92935 0 133 10.00000 16.92935 69.3% - 2s 0 0 16.92859 0 133 10.00000 16.92859 69.3% - 3s 0 0 16.92849 0 133 10.00000 16.92849 69.3% - 3s 0 2 16.92772 0 133 10.00000 16.92772 69.3% - 3s 211 110 12.85244 10 62 10.00000 15.90281 59.0% 85.1 5s Cutting planes: Clique: 142 Explored 599 nodes (45769 simplex iterations) in 7.16 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%