Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:47:12 2012 Optimize a model with 2314 rows, 96 columns and 4628 nonzeros Presolve removed 1645 rows and 0 columns Presolve time: 0.07s Presolved: 669 rows, 96 columns, 4608 nonzeros Variable types: 0 continuous, 96 integer (96 binary) Found heuristic solution: objective 6.0000000 Root relaxation: objective 1.373001e+01, 435 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 13.73001 0 85 6.00000 13.73001 129% - 0s H 0 0 8.0000000 13.73001 71.6% - 0s 0 0 13.34224 0 90 8.00000 13.34224 66.8% - 0s 0 0 13.28583 0 91 8.00000 13.28583 66.1% - 0s 0 0 13.19974 0 92 8.00000 13.19974 65.0% - 0s 0 0 13.19090 0 92 8.00000 13.19090 64.9% - 0s 0 0 13.17545 0 93 8.00000 13.17545 64.7% - 0s 0 0 13.15382 0 93 8.00000 13.15382 64.4% - 0s 0 0 13.13865 0 93 8.00000 13.13865 64.2% - 0s 0 0 13.13372 0 93 8.00000 13.13372 64.2% - 0s 0 0 13.12633 0 95 8.00000 13.12633 64.1% - 0s 0 0 13.12612 0 94 8.00000 13.12612 64.1% - 0s 0 0 13.12423 0 95 8.00000 13.12423 64.1% - 0s 0 0 13.12278 0 94 8.00000 13.12278 64.0% - 1s 0 0 13.12274 0 95 8.00000 13.12274 64.0% - 1s 0 2 13.12029 0 95 8.00000 13.12029 64.0% - 1s * 242 26 5 9.0000000 10.95030 21.7% 48.4 1s Cutting planes: Clique: 81 Zero half: 2 Explored 269 nodes (13293 simplex iterations) in 1.85 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%