Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:49:43 2012 Optimize a model with 6324 rows, 10506 columns and 29070 nonzeros Presolve removed 35 rows and 3570 columns Presolve time: 0.13s Presolved: 6289 rows, 6936 columns, 25500 nonzeros Variable types: 0 continuous, 6936 integer (6936 binary) Found heuristic solution: objective 27.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 7425 iterations, 0.55 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 90 3.00000 2.00000 33.3% - 1s 0 0 2.00000 0 229 3.00000 2.00000 33.3% - 2s 0 0 2.00000 0 167 3.00000 2.00000 33.3% - 5s 0 0 2.00000 0 184 3.00000 2.00000 33.3% - 8s 0 0 2.00000 0 90 3.00000 2.00000 33.3% - 11s 0 0 2.00000 0 157 3.00000 2.00000 33.3% - 13s 0 0 2.00000 0 182 3.00000 2.00000 33.3% - 15s 0 0 2.00000 0 90 3.00000 2.00000 33.3% - 17s 0 0 2.00000 0 157 3.00000 2.00000 33.3% - 19s 0 0 2.00000 0 157 3.00000 2.00000 33.3% - 20s 0 2 2.00000 0 157 3.00000 2.00000 33.3% - 23s 4 4 2.00000 1 90 3.00000 2.00000 33.3% 2542 25s 5 5 2.00000 1 182 3.00000 2.00000 33.3% 2034 30s 7 6 2.00000 1 90 3.00000 2.00000 33.3% 1453 35s 9 8 2.00000 1 90 3.00000 2.00000 33.3% 1130 42s 10 8 2.00000 1 90 3.00000 2.00000 33.3% 1017 46s Cutting planes: Gomory: 7 Zero half: 3 Explored 10 nodes (262022 simplex iterations) in 46.37 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%