Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:48:36 2012 Optimize a model with 2519 rows, 101 columns and 5038 nonzeros Presolve removed 1823 rows and 0 columns Presolve time: 0.08s Presolved: 696 rows, 101 columns, 4682 nonzeros Variable types: 0 continuous, 101 integer (101 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.443487e+01, 353 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 14.43487 0 94 7.00000 14.43487 106% - 0s H 0 0 8.0000000 14.43487 80.4% - 0s 0 0 13.99637 0 99 8.00000 13.99637 75.0% - 0s 0 0 13.96527 0 97 8.00000 13.96527 74.6% - 0s 0 0 13.94475 0 98 8.00000 13.94475 74.3% - 0s 0 0 13.90327 0 98 8.00000 13.90327 73.8% - 0s 0 0 13.89668 0 98 8.00000 13.89668 73.7% - 0s 0 0 13.88704 0 100 8.00000 13.88704 73.6% - 0s 0 0 13.88651 0 99 8.00000 13.88651 73.6% - 0s 0 0 13.88648 0 99 8.00000 13.88648 73.6% - 0s 0 2 13.88561 0 99 8.00000 13.88561 73.6% - 1s * 246 60 15 9.0000000 11.99515 33.3% 48.3 1s * 254 18 6 10.0000000 11.92463 19.2% 47.9 1s Cutting planes: Clique: 72 Explored 279 nodes (13399 simplex iterations) in 1.77 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%