Gurobi 5.0.1 (linux64) logging started Tue Dec 25 15:27:40 2012 Optimize a model with 482 rows, 441 columns and 2834 nonzeros Presolve removed 39 rows and 75 columns Presolve time: 0.02s Presolved: 443 rows, 366 columns, 4345 nonzeros Variable types: 20 continuous, 346 integer (346 binary) Root relaxation: objective 1.595874e+02, 98 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 159.58736 0 31 - 159.58736 - - 0s 0 0 172.80544 0 44 - 172.80544 - - 0s 0 0 175.92203 0 44 - 175.92203 - - 0s 0 0 176.23846 0 41 - 176.23846 - - 0s 0 0 176.23846 0 41 - 176.23846 - - 0s 0 0 176.23846 0 41 - 176.23846 - - 0s 0 2 176.37061 0 41 - 176.37061 - - 0s * 17 17 15 240.0000000 181.00000 24.6% 13.6 0s H 83 49 236.0000000 183.06499 22.4% 9.8 0s H 245 97 226.0000000 187.01752 17.2% 8.8 0s H 301 68 211.0000000 190.87854 9.54% 9.0 0s * 448 16 8 201.0000000 197.13386 1.92% 8.3 0s Cutting planes: Learned: 3 Gomory: 2 Cover: 19 Implied bound: 1 Clique: 3 MIR: 17 GUB cover: 8 Zero half: 1 Explored 466 nodes (3956 simplex iterations) in 0.45 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.010000000000e+02, best bound 2.010000000000e+02, gap 0.0%