Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:45:16 2012 Optimize a model with 13482 rows, 19460 columns and 59212 nonzeros Presolve removed 310 rows and 4172 columns Presolve time: 0.26s Presolved: 13172 rows, 15288 columns, 54157 nonzeros Variable types: 0 continuous, 15288 integer (15288 binary) Found heuristic solution: objective 139.0000000 Root relaxation: objective 3.000000e+00, 8548 iterations, 0.33 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 (8548 simplex iterations) in 0.63 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%