Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:17:01 2012 Optimize a model with 4673 rows, 3306 columns and 17041 nonzeros Presolve removed 461 rows and 173 columns Presolve time: 0.12s Presolved: 4212 rows, 3133 columns, 15639 nonzeros Variable types: 0 continuous, 3133 integer (3133 binary) Found heuristic solution: objective 57.0000000 Root relaxation: objective 3.000000e+00, 3024 iterations, 0.17 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% - 0s Explored 0 nodes (9169 simplex iterations) in 0.72 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%