Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:13:27 2012 Optimize a model with 2688 rows, 2352 columns and 10224 nonzeros Presolve removed 196 rows and 192 columns Presolve time: 0.05s Presolved: 2492 rows, 2160 columns, 9552 nonzeros Variable types: 0 continuous, 2160 integer (2160 binary) Found heuristic solution: objective 23.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: cutoff, 1992 iterations, 0.04 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 (1992 simplex iterations) in 0.10 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%