Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:29:45 2012 Optimize a model with 9514 rows, 5112 columns and 33370 nonzeros Presolve removed 854 rows and 142 columns Presolve time: 0.16s Presolved: 8660 rows, 4970 columns, 31169 nonzeros Variable types: 0 continuous, 4970 integer (4970 binary) Found heuristic solution: objective 42.0000000 Root relaxation: objective 3.000000e+00, 8409 iterations, 0.91 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 (12211 simplex iterations) in 1.80 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%