Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:47:37 2012 Optimize a model with 2349 rows, 98 columns and 4698 nonzeros Presolve removed 1652 rows and 0 columns Presolve time: 0.07s Presolved: 697 rows, 98 columns, 4555 nonzeros Variable types: 0 continuous, 98 integer (98 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.458509e+01, 376 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 14.58509 0 94 7.00000 14.58509 108% - 0s H 0 0 8.0000000 14.58509 82.3% - 0s 0 0 14.21760 0 98 8.00000 14.21760 77.7% - 0s 0 0 14.16459 0 98 8.00000 14.16459 77.1% - 0s 0 0 14.12404 0 98 8.00000 14.12404 76.6% - 0s 0 0 14.10123 0 98 8.00000 14.10123 76.3% - 0s 0 0 14.09596 0 98 8.00000 14.09596 76.2% - 0s 0 0 14.09225 0 98 8.00000 14.09225 76.2% - 0s 0 0 14.09219 0 98 8.00000 14.09219 76.2% - 0s 0 2 14.09044 0 98 8.00000 14.09044 76.1% - 1s H 249 66 9.0000000 11.69791 30.0% 51.0 1s Cutting planes: Clique: 45 Zero half: 3 Explored 345 nodes (16425 simplex iterations) in 1.93 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%