Gurobi 5.0.1 (linux64) logging started Fri Nov 16 19:20:35 2012 Optimize a model with 11008 rows, 16512 columns and 49024 nonzeros Presolve removed 288 rows and 4096 columns Presolve time: 0.24s Presolved: 10720 rows, 12416 columns, 44288 nonzeros Variable types: 0 continuous, 12416 integer (12416 binary) Found heuristic solution: objective 38.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: cutoff, 13413 iterations, 0.65 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 (13413 simplex iterations) in 0.92 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%