Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:48:38 2012 Optimize a model with 2570 rows, 101 columns and 5140 nonzeros Presolve removed 1863 rows and 0 columns Presolve time: 0.07s Presolved: 707 rows, 101 columns, 4819 nonzeros Variable types: 0 continuous, 101 integer (101 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.429664e+01, 433 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 14.29664 0 98 7.00000 14.29664 104% - 0s H 0 0 8.0000000 14.29664 78.7% - 0s 0 0 13.93334 0 96 8.00000 13.93334 74.2% - 0s 0 0 13.80300 0 98 8.00000 13.80300 72.5% - 0s 0 0 13.73226 0 100 8.00000 13.73226 71.7% - 0s 0 0 13.71502 0 99 8.00000 13.71502 71.4% - 0s 0 0 13.67951 0 100 8.00000 13.67951 71.0% - 0s H 0 0 9.0000000 13.67951 52.0% - 0s 0 0 13.65780 0 100 9.00000 13.65780 51.8% - 0s 0 0 13.63419 0 100 9.00000 13.63419 51.5% - 0s 0 0 13.61611 0 99 9.00000 13.61611 51.3% - 0s 0 0 13.60637 0 100 9.00000 13.60637 51.2% - 0s 0 0 13.60346 0 100 9.00000 13.60346 51.1% - 1s 0 0 13.60153 0 100 9.00000 13.60153 51.1% - 1s 0 0 13.60109 0 100 9.00000 13.60109 51.1% - 1s 0 2 13.60068 0 100 9.00000 13.60068 51.1% - 1s * 34 20 3 10.0000000 13.47145 34.7% 70.0 1s Cutting planes: Clique: 80 Explored 65 nodes (5645 simplex iterations) in 1.58 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%