Gurobi 5.0.1 (linux64) logging started Fri Nov 16 19:15:54 2012 Optimize a model with 10496 rows, 16512 columns and 47488 nonzeros Presolve removed 30 rows and 3840 columns Presolve time: 0.21s Presolved: 10466 rows, 12672 columns, 43648 nonzeros Variable types: 0 continuous, 12672 integer (12672 binary) Found heuristic solution: objective 39.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 9815 iterations, 0.33 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 (9815 simplex iterations) in 0.56 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%