Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:55:35 2012 Optimize a model with 3401 rows, 116 columns and 6802 nonzeros Presolve removed 2430 rows and 0 columns Presolve time: 0.11s Presolved: 971 rows, 116 columns, 6796 nonzeros Variable types: 0 continuous, 116 integer (116 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.546192e+01, 526 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 15.46192 0 111 7.00000 15.46192 121% - 0s 0 0 15.27797 0 114 7.00000 15.27797 118% - 0s H 0 0 8.0000000 15.27797 91.0% - 0s 0 0 15.16531 0 115 8.00000 15.16531 89.6% - 0s 0 0 15.10152 0 114 8.00000 15.10152 88.8% - 0s H 0 0 9.0000000 15.10152 67.8% - 0s 0 0 15.07837 0 115 9.00000 15.07837 67.5% - 0s 0 0 15.04418 0 115 9.00000 15.04418 67.2% - 0s 0 0 15.04038 0 115 9.00000 15.04038 67.1% - 1s 0 0 15.03953 0 115 9.00000 15.03953 67.1% - 1s 0 0 15.02914 0 115 9.00000 15.02914 67.0% - 1s 0 0 15.02782 0 114 9.00000 15.02782 67.0% - 1s 0 0 15.02742 0 114 9.00000 15.02742 67.0% - 1s 0 0 15.02742 0 114 9.00000 15.02742 67.0% - 1s 0 2 15.02712 0 114 9.00000 15.02712 67.0% - 2s H 308 48 10.0000000 12.09692 21.0% 67.2 3s Cutting planes: Clique: 77 Zero half: 1 Explored 357 nodes (22989 simplex iterations) in 3.71 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%