Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:21:41 2012 Optimize a model with 7423 rows, 4160 columns and 26110 nonzeros Presolve removed 1154 rows and 2 columns Presolve time: 0.27s Presolved: 6333 rows, 4158 columns, 27258 nonzeros Variable types: 0 continuous, 4158 integer (4158 binary) Found heuristic solution: objective 64.0000000 Root relaxation: objective 3.000000e+00, 4791 iterations, 0.55 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% - 1s Explored 0 nodes (8219 simplex iterations) in 1.45 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%