Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:13:17 2012 Optimize a model with 2726 rows, 2256 columns and 10246 nonzeros Presolve removed 144 rows and 141 columns Presolve time: 0.06s Presolved: 2582 rows, 2115 columns, 9776 nonzeros Variable types: 0 continuous, 2115 integer (2115 binary) Found heuristic solution: objective 25.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: cutoff, 2838 iterations, 0.09 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 (2838 simplex iterations) in 0.16 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%