Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:09:57 2012 Optimize a model with 299 rows, 552 columns and 1357 nonzeros Presolve removed 8 rows and 184 columns Presolve time: 0.00s Presolved: 291 rows, 368 columns, 1173 nonzeros Variable types: 0 continuous, 368 integer (368 binary) Found heuristic solution: objective 9.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 254 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 16 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 16 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 34 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 32 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 34 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 41 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 16 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 34 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 34 3.00000 2.00000 33.3% - 0s 0 2 2.00000 0 34 3.00000 2.00000 33.3% - 0s Cutting planes: Gomory: 3 Zero half: 2 Explored 8 nodes (8599 simplex iterations) in 0.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%