Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:15:48 2012 Optimize a model with 3564 rows, 2970 columns and 13446 nonzeros Presolve removed 111 rows and 162 columns Presolve time: 0.08s Presolved: 3453 rows, 2808 columns, 13014 nonzeros Variable types: 0 continuous, 2808 integer (2808 binary) Found heuristic solution: objective 23.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: cutoff, 4053 iterations, 0.18 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 cutoff 0 3.00000 2.00000 33.3% - 0s Explored 0 nodes (4053 simplex iterations) in 0.27 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%