Gurobi 5.0.1 (linux64) logging started Wed Dec 19 14:01:19 2012 Optimize a model with 482 rows, 441 columns and 2630 nonzeros Presolve removed 295 rows and 333 columns Presolve time: 0.01s Presolved: 187 rows, 108 columns, 1121 nonzeros Variable types: 17 continuous, 91 integer (91 binary) Found heuristic solution: objective 371.0000000 Root relaxation: objective 3.314687e+02, 68 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 331.46872 0 22 371.00000 331.46872 10.7% - 0s 0 0 346.62824 0 22 371.00000 346.62824 6.57% - 0s H 0 0 369.0000000 346.62824 6.06% - 0s 0 0 347.46578 0 16 369.00000 347.46578 5.84% - 0s 0 0 347.50619 0 22 369.00000 347.50619 5.82% - 0s 0 0 347.50619 0 14 369.00000 347.50619 5.82% - 0s 0 0 347.50619 0 14 369.00000 347.50619 5.82% - 0s 0 0 347.50619 0 14 369.00000 347.50619 5.82% - 0s H 0 0 361.0000000 347.50619 3.74% - 0s 0 0 347.50619 0 25 361.00000 347.50619 3.74% - 0s 0 0 347.50619 0 20 361.00000 347.50619 3.74% - 0s 0 0 347.50619 0 22 361.00000 347.50619 3.74% - 0s 0 0 347.50619 0 14 361.00000 347.50619 3.74% - 0s 0 0 347.50619 0 14 361.00000 347.50619 3.74% - 0s 0 0 347.50619 0 14 361.00000 347.50619 3.74% - 0s H 0 0 360.0000000 347.50619 3.47% - 0s 0 2 347.98184 0 14 360.00000 347.98184 3.34% - 0s H 30 5 352.0000000 348.00000 1.14% 6.3 0s Cutting planes: Gomory: 2 Cover: 2 Clique: 2 MIR: 5 GUB cover: 2 Explored 44 nodes (527 simplex iterations) in 0.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.520000000000e+02, best bound 3.520000000000e+02, gap 0.0%