Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:39:01 2012 Optimize a model with 8280 rows, 5256 columns and 29808 nonzeros Presolve removed 579 rows and 216 columns Presolve time: 0.16s Presolved: 7701 rows, 5040 columns, 28152 nonzeros Variable types: 0 continuous, 5040 integer (5040 binary) Found heuristic solution: objective 36.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: cutoff, 7738 iterations, 0.58 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 cutoff 0 3.00000 2.00000 33.3% - 0s Explored 0 nodes (7738 simplex iterations) in 0.75 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%