Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:48:04 2012 Optimize a model with 2445 rows, 99 columns and 4890 nonzeros Presolve removed 1721 rows and 0 columns Presolve time: 0.07s Presolved: 724 rows, 99 columns, 4996 nonzeros Variable types: 0 continuous, 99 integer (99 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.430833e+01, 427 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 14.30833 0 90 7.00000 14.30833 104% - 0s H 0 0 9.0000000 14.30833 59.0% - 0s 0 0 13.91653 0 97 9.00000 13.91653 54.6% - 0s 0 0 13.84523 0 96 9.00000 13.84523 53.8% - 0s 0 0 13.73912 0 97 9.00000 13.73912 52.7% - 0s 0 0 13.72113 0 98 9.00000 13.72113 52.5% - 0s 0 0 13.68251 0 99 9.00000 13.68251 52.0% - 0s 0 0 13.68083 0 99 9.00000 13.68083 52.0% - 0s 0 0 13.67651 0 99 9.00000 13.67651 52.0% - 0s 0 0 13.67609 0 99 9.00000 13.67609 52.0% - 0s 0 0 13.67604 0 99 9.00000 13.67604 52.0% - 0s 0 0 13.67383 0 99 9.00000 13.67383 51.9% - 1s 0 0 13.67131 0 99 9.00000 13.67131 51.9% - 1s 0 0 13.66766 0 98 9.00000 13.66766 51.9% - 1s 0 0 13.66749 0 98 9.00000 13.66749 51.9% - 1s 0 0 13.66015 0 99 9.00000 13.66015 51.8% - 1s 0 0 13.65403 0 99 9.00000 13.65403 51.7% - 1s 0 0 13.65368 0 99 9.00000 13.65368 51.7% - 1s 0 0 13.65185 0 99 9.00000 13.65185 51.7% - 1s 0 2 13.65046 0 99 9.00000 13.65046 51.7% - 1s Cutting planes: Clique: 100 Explored 164 nodes (10029 simplex iterations) in 2.26 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%