Gurobi 5.0.1 (linux64) logging started Tue Dec 25 15:27:23 2012 Optimize a model with 482 rows, 441 columns and 2817 nonzeros Presolve removed 45 rows and 80 columns Presolve time: 0.02s Presolved: 437 rows, 361 columns, 4127 nonzeros Variable types: 20 continuous, 341 integer (341 binary) Root relaxation: objective 1.846542e+02, 107 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 184.65424 0 30 - 184.65424 - - 0s 0 0 196.15686 0 28 - 196.15686 - - 0s 0 0 201.20548 0 45 - 201.20548 - - 0s 0 0 201.50000 0 53 - 201.50000 - - 0s 0 0 202.25000 0 51 - 202.25000 - - 0s 0 0 202.25000 0 51 - 202.25000 - - 0s 0 0 202.25000 0 44 - 202.25000 - - 0s H 0 0 315.0000000 202.25000 35.8% - 0s H 0 0 281.0000000 202.25000 28.0% - 0s 0 2 203.00000 0 38 281.00000 203.00000 27.8% - 0s H 109 79 257.0000000 206.80882 19.5% 7.2 0s H 610 323 250.0000000 211.32075 15.5% 7.7 0s * 1341 471 59 246.0000000 221.02385 10.2% 9.8 3s * 1342 434 59 245.0000000 221.02385 9.79% 9.8 3s H 2636 583 244.0000000 227.84091 6.62% 9.6 4s * 2774 580 46 243.0000000 228.68633 5.89% 9.7 4s * 3102 424 48 241.0000000 232.05012 3.71% 9.7 4s 3725 424 238.70652 26 6 241.00000 234.00000 2.90% 9.3 5s Cutting planes: Gomory: 3 Cover: 6 Implied bound: 3 Clique: 2 MIR: 64 GUB cover: 7 Zero half: 161 Explored 5394 nodes (47035 simplex iterations) in 5.93 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.410000000000e+02, best bound 2.410000000000e+02, gap 0.0%