Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:04:13 2012 Optimize a model with 7524 rows, 13110 columns and 35226 nonzeros Presolve removed 32 rows and 3648 columns Presolve time: 0.15s Presolved: 7492 rows, 9462 columns, 31578 nonzeros Variable types: 0 continuous, 9462 integer (9462 binary) Found heuristic solution: objective 33.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 5404 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 2.00000 1.00000 50.0% - 0s Explored 0 nodes (5404 simplex iterations) in 0.25 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%