Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:36:28 2012 Optimize a model with 11316 rows, 15252 columns and 48708 nonzeros Presolve removed 23 rows and 2829 columns Presolve time: 0.19s Presolved: 11293 rows, 12423 columns, 45879 nonzeros Variable types: 0 continuous, 12423 integer (12423 binary) Found heuristic solution: objective 44.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 11771 iterations, 0.97 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 130 3.00000 2.00000 33.3% - 3s 0 0 2.00000 0 250 3.00000 2.00000 33.3% - 6s 0 0 2.00000 0 233 3.00000 2.00000 33.3% - 14s 0 0 2.00000 0 268 3.00000 2.00000 33.3% - 20s 0 0 2.00000 0 268 3.00000 2.00000 33.3% - 27s 0 0 2.00000 0 130 3.00000 2.00000 33.3% - 33s 0 0 2.00000 0 229 3.00000 2.00000 33.3% - 42s 0 0 2.00000 0 338 3.00000 2.00000 33.3% - 50s 0 0 2.00000 0 268 3.00000 2.00000 33.3% - 57s 0 2 2.00000 0 268 3.00000 2.00000 33.3% - 69s 2 3 2.00000 1 268 3.00000 2.00000 33.3% 9021 70s 4 4 2.00000 1 130 3.00000 2.00000 33.3% 4510 75s 5 5 2.00000 1 244 3.00000 2.00000 33.3% 3608 85s 6 6 2.00000 1 235 3.00000 2.00000 33.3% 3007 95s 7 6 2.00000 1 233 3.00000 2.00000 33.3% 2577 105s 8 7 2.00000 1 238 3.00000 2.00000 33.3% 2255 118s 9 8 2.00000 1 237 3.00000 2.00000 33.3% 2005 128s 10 8 2.00000 1 130 3.00000 2.00000 33.3% 1804 139s 11 9 2.00000 1 130 3.00000 2.00000 33.3% 1640 157s 14 11 infeasible 12 3.00000 2.00000 33.3% 21802 163s 15 10 infeasible 12 3.00000 3.00000 0.0% 20749 165s Cutting planes: Gomory: 27 Zero half: 3 Explored 16 nodes (523211 simplex iterations) in 165.04 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%