Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:49:40 2012 Optimize a model with 5406 rows, 10506 columns and 26316 nonzeros Presolve removed 37 rows and 3774 columns Presolve time: 0.14s Presolved: 5369 rows, 6732 columns, 22542 nonzeros Variable types: 0 continuous, 6732 integer (6732 binary) Found heuristic solution: objective 27.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 4316 iterations, 0.07 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 (4316 simplex iterations) in 0.22 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%