Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:57:02 2012 Optimize a model with 5498 rows, 2256 columns and 18516 nonzeros Presolve removed 989 rows and 2 columns Presolve time: 0.12s Presolved: 4556 rows, 2254 columns, 18136 nonzeros Variable types: 0 continuous, 2254 integer (2254 binary) Found heuristic solution: objective 46.0000000 Root relaxation: objective 3.000000e+00, 3754 iterations, 0.37 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 3.0000000 3.00000 0.0% - 2s Explored 0 nodes (19023 simplex iterations) in 2.58 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%