Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:00:48 2012 Optimize a model with 22764 rows, 24806 columns and 92314 nonzeros Presolve removed 24 rows and 3456 columns Presolve time: 0.51s Presolved: 22740 rows, 21350 columns, 88570 nonzeros Variable types: 0 continuous, 21350 integer (21350 binary) Found heuristic solution: objective 157.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 303 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 248 3.00000 2.00000 33.3% - 0s Explored 0 nodes (563 simplex iterations) in 0.64 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%