Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:14:24 2012 Optimize a model with 4160 rows, 702 columns and 13078 nonzeros Presolve time: 0.05s Presolved: 4160 rows, 702 columns, 22268 nonzeros Variable types: 0 continuous, 702 integer (702 binary) Root relaxation: objective 2.000000e+00, 953 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 52 - 2.00000 - - 0s H 0 0 9.0000000 2.00000 77.8% - 0s 0 0 2.00000 0 52 9.00000 2.00000 77.8% - 0s 0 0 4.00000 0 56 9.00000 4.00000 55.6% - 0s H 0 0 8.0000000 4.00000 50.0% - 0s 0 0 7.00000 0 54 8.00000 7.00000 12.5% - 1s 0 0 7.00000 0 66 8.00000 7.00000 12.5% - 1s * 0 0 0 7.0000000 7.00000 0.0% - 1s Cutting planes: Clique: 80 Zero half: 23 Explored 0 nodes (9583 simplex iterations) in 1.33 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%