Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:13:12 2012 Optimize a model with 8142 rows, 14042 columns and 37996 nonzeros Presolve removed 38 rows and 4484 columns Presolve time: 0.16s Presolved: 8104 rows, 9558 columns, 33512 nonzeros Variable types: 0 continuous, 9558 integer (9558 binary) Found heuristic solution: objective 36.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 7316 iterations, 0.31 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 cutoff 0 2.00000 1.00000 50.0% - 0s Explored 0 nodes (7316 simplex iterations) in 0.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%