Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:59:04 2012 Optimize a model with 7040 rows, 12210 columns and 32890 nonzeros Presolve removed 27 rows and 2970 columns Presolve time: 0.13s Presolved: 7013 rows, 9240 columns, 29920 nonzeros Variable types: 0 continuous, 9240 integer (9240 binary) Found heuristic solution: objective 28.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 6013 iterations, 0.11 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 18 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 18 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 18 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 111 3.00000 2.00000 33.3% - 2s 0 0 2.00000 0 95 3.00000 2.00000 33.3% - 3s 0 0 2.00000 0 111 3.00000 2.00000 33.3% - 5s 0 0 2.00000 0 95 3.00000 2.00000 33.3% - 6s 0 0 2.00000 0 191 3.00000 2.00000 33.3% - 8s 0 0 2.00000 0 189 3.00000 2.00000 33.3% - 10s 0 2 2.00000 0 189 3.00000 2.00000 33.3% - 13s 5 5 2.00000 1 122 3.00000 2.00000 33.3% 2379 18s 6 6 2.00000 1 18 3.00000 2.00000 33.3% 1982 21s 7 6 2.00000 1 18 3.00000 2.00000 33.3% 1699 25s 9 8 2.00000 1 22 3.00000 2.00000 33.3% 1321 31s 10 8 2.00000 1 181 3.00000 2.00000 33.3% 1189 38s Cutting planes: Gomory: 6 Zero half: 16 Explored 10 nodes (274561 simplex iterations) in 38.81 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%