Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:18:45 2012 Optimize a model with 5759 rows, 3660 columns and 20638 nonzeros Presolve removed 784 rows and 122 columns Presolve time: 0.15s Presolved: 4975 rows, 3538 columns, 18432 nonzeros Variable types: 0 continuous, 3538 integer (3538 binary) Found heuristic solution: objective 60.0000000 Root relaxation: objective 3.000000e+00, 3798 iterations, 0.27 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 (7630 simplex iterations) in 0.90 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%