Gurobi 5.0.1 (linux64) logging started Fri Nov 16 02:51:42 2012 Optimize a model with 9213 rows, 1190 columns and 28660 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.10s Presolved: 9245 rows, 1188 columns, 31487 nonzeros Variable types: 0 continuous, 1188 integer (1188 binary) Found heuristic solution: objective 34.0000000 Root relaxation: objective 3.461187e+00, 8357 iterations, 0.69 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.46119 0 1027 34.00000 3.46119 89.8% - 1s H 0 0 33.0000000 3.46119 89.5% - 2s 0 0 5.00000 0 60 33.00000 5.00000 84.8% - 2s H 0 0 22.0000000 5.00000 77.3% - 2s 0 0 5.57143 0 799 22.00000 5.57143 74.7% - 3s H 0 0 17.0000000 5.57143 67.2% - 3s H 0 0 11.0000000 5.57143 49.4% - 3s 0 0 5.66667 0 305 11.00000 5.66667 48.5% - 3s H 0 0 9.0000000 5.66667 37.0% - 3s 0 0 5.66667 0 118 9.00000 5.66667 37.0% - 4s 0 0 7.00000 0 20 9.00000 7.00000 22.2% - 5s H 0 0 8.0000000 7.00000 12.5% - 5s 0 0 7.00000 0 154 8.00000 7.00000 12.5% - 5s * 0 0 0 7.0000000 7.00000 0.0% - 5s Cutting planes: Gomory: 1 Clique: 15 Zero half: 42 Explored 0 nodes (29400 simplex iterations) in 6.00 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%