Gurobi 5.0.1 (linux64) logging started Wed Dec 19 14:01:28 2012 Optimize a model with 482 rows, 441 columns and 2661 nonzeros Presolve removed 145 rows and 187 columns Presolve time: 0.01s Presolved: 337 rows, 254 columns, 3125 nonzeros Variable types: 20 continuous, 234 integer (234 binary) Root relaxation: objective 2.771252e+02, 95 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 277.12522 0 36 - 277.12522 - - 0s 0 0 305.75935 0 42 - 305.75935 - - 0s 0 0 310.41848 0 37 - 310.41848 - - 0s 0 0 310.68493 0 38 - 310.68493 - - 0s 0 0 310.96051 0 38 - 310.96051 - - 0s 0 0 310.96051 0 34 - 310.96051 - - 0s H 0 0 403.0000000 310.96051 22.8% - 0s 0 2 311.66100 0 34 403.00000 311.66100 22.7% - 0s * 37 23 10 352.0000000 314.83042 10.6% 8.7 0s * 53 18 10 333.0000000 316.66874 4.90% 8.6 0s * 63 18 10 331.0000000 316.95271 4.24% 8.0 0s * 77 14 7 330.0000000 317.25352 3.86% 7.9 0s * 115 1 9 329.0000000 329.00000 0.0% 7.0 0s Cutting planes: Learned: 3 Gomory: 2 Cover: 14 Implied bound: 1 Clique: 2 MIR: 9 GUB cover: 8 Explored 116 nodes (1006 simplex iterations) in 0.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.290000000000e+02, best bound 3.290000000000e+02, gap 0.0%