Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:37:12 2012 Optimize a model with 490 rows, 2450 columns and 3724 nonzeros Presolve removed 34 rows and 1666 columns Presolve time: 0.01s Presolved: 456 rows, 784 columns, 2058 nonzeros Variable types: 0 continuous, 784 integer (784 binary) Found heuristic solution: objective 6.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 465 iterations, 0.00 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 (465 simplex iterations) in 0.02 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%