Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:04:26 2012 Optimize a model with 4065 rows, 127 columns and 8130 nonzeros Presolve removed 2925 rows and 0 columns Presolve time: 0.14s Presolved: 1140 rows, 127 columns, 8052 nonzeros Variable types: 0 continuous, 127 integer (127 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.648648e+01, 568 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 16.48648 0 125 7.00000 16.48648 136% - 0s 0 0 16.12199 0 126 7.00000 16.12199 130% - 0s 0 0 16.00566 0 127 7.00000 16.00566 129% - 0s H 0 0 8.0000000 16.00566 100% - 0s 0 0 15.94404 0 127 8.00000 15.94404 99.3% - 0s 0 0 15.87570 0 127 8.00000 15.87570 98.4% - 0s 0 0 15.82567 0 127 8.00000 15.82567 97.8% - 1s 0 0 15.81266 0 127 8.00000 15.81266 97.7% - 1s 0 0 15.80873 0 127 8.00000 15.80873 97.6% - 1s 0 0 15.80704 0 127 8.00000 15.80704 97.6% - 1s H 0 0 9.0000000 15.80704 75.6% - 1s 0 0 15.80352 0 127 9.00000 15.80352 75.6% - 1s 0 0 15.80201 0 127 9.00000 15.80201 75.6% - 2s 0 0 15.79823 0 127 9.00000 15.79823 75.5% - 2s 0 0 15.79771 0 127 9.00000 15.79771 75.5% - 2s 0 0 15.79745 0 127 9.00000 15.79745 75.5% - 2s 0 0 15.79732 0 127 9.00000 15.79732 75.5% - 2s 0 2 15.79425 0 127 9.00000 15.79425 75.5% - 3s 364 174 10.50999 20 48 9.00000 13.37693 48.6% 68.4 5s * 556 98 13 10.0000000 12.24221 22.4% 61.8 5s Cutting planes: Clique: 116 Explored 655 nodes (38193 simplex iterations) in 6.09 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%