Gurobi 5.0.1 (linux64) logging started Wed Dec 19 14:01:40 2012 Optimize a model with 482 rows, 441 columns and 2662 nonzeros Presolve removed 152 rows and 206 columns Presolve time: 0.01s Presolved: 330 rows, 235 columns, 2701 nonzeros Variable types: 20 continuous, 215 integer (215 binary) Root relaxation: objective 2.870488e+02, 106 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 287.04883 0 37 - 287.04883 - - 0s 0 0 298.00000 0 12 - 298.00000 - - 0s 0 0 298.88889 0 29 - 298.88889 - - 0s 0 0 299.02307 0 22 - 299.02307 - - 0s 0 0 299.25641 0 27 - 299.25641 - - 0s 0 0 299.25641 0 27 - 299.25641 - - 0s 0 0 299.25641 0 22 - 299.25641 - - 0s H 0 0 317.0000000 299.25641 5.60% - 0s H 0 0 309.0000000 299.25641 3.15% - 0s H 0 0 306.0000000 299.25641 2.20% - 0s H 0 0 304.0000000 299.25641 1.56% - 0s Cutting planes: Learned: 1 Cover: 2 Clique: 1 MIR: 4 GUB cover: 6 Zero half: 2 Explored 0 nodes (190 simplex iterations) in 0.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.040000000000e+02, best bound 3.040000000000e+02, gap 0.0%