Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:39:36 2012 Optimize a model with 2808 rows, 6162 columns and 14274 nonzeros Presolve removed 35 rows and 2730 columns Presolve time: 0.08s Presolved: 2773 rows, 3432 columns, 11544 nonzeros Variable types: 0 continuous, 3432 integer (3432 binary) Found heuristic solution: objective 19.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 2768 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 2.00000 1.00000 50.0% - 0s Explored 0 nodes (2768 simplex iterations) in 0.14 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%