Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:39:35 2012 Optimize a model with 2418 rows, 6162 columns and 13104 nonzeros Presolve removed 191 rows and 2730 columns Presolve time: 0.07s Presolved: 2227 rows, 3432 columns, 9984 nonzeros Variable types: 0 continuous, 3432 integer (3432 binary) Found heuristic solution: objective 15.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: cutoff, 3464 iterations, 0.06 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 (3464 simplex iterations) in 0.14 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%