Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:13:13 2012 Optimize a model with 7316 rows, 14042 columns and 35518 nonzeros Presolve removed 35 rows and 4130 columns Presolve time: 0.15s Presolved: 7281 rows, 9912 columns, 31388 nonzeros Variable types: 0 continuous, 9912 integer (9912 binary) Found heuristic solution: objective 28.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 6637 iterations, 0.12 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 (6637 simplex iterations) in 0.29 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%