Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:55:48 2012 Optimize a model with 5406 rows, 11342 columns and 27136 nonzeros Presolve removed 40 rows and 4240 columns Presolve time: 0.14s Presolved: 5366 rows, 7102 columns, 22896 nonzeros Variable types: 0 continuous, 7102 integer (7102 binary) Found heuristic solution: objective 24.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 4501 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 (4501 simplex iterations) in 0.24 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%