Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:57:32 2012 Optimize a model with 10836 rows, 16002 columns and 48006 nonzeros Presolve removed 26 rows and 3276 columns Presolve time: 0.18s Presolved: 10810 rows, 12726 columns, 44730 nonzeros Variable types: 0 continuous, 12726 integer (12726 binary) Found heuristic solution: objective 42.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 7791 iterations, 0.13 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 (7791 simplex iterations) in 0.34 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%