Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:18:05 2012 Optimize a model with 6077 rows, 3540 columns and 21535 nonzeros Presolve removed 296 rows and 59 columns Presolve time: 0.13s Presolved: 5781 rows, 3481 columns, 20768 nonzeros Variable types: 0 continuous, 3481 integer (3481 binary) Found heuristic solution: objective 34.0000000 Root relaxation: objective 3.000000e+00, 5858 iterations, 0.56 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 (8713 simplex iterations) in 0.98 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%