Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:15:15 2012 Optimize a model with 3926 rows, 2652 columns and 14176 nonzeros Presolve removed 257 rows and 2 columns Presolve time: 0.10s Presolved: 3720 rows, 2650 columns, 16021 nonzeros Variable types: 0 continuous, 2650 integer (2650 binary) Found heuristic solution: objective 51.0000000 Root relaxation: objective 3.000000e+00, 2908 iterations, 0.18 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 (4714 simplex iterations) in 0.45 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%