Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:37:30 2012 Optimize a model with 880 rows, 3080 columns and 5500 nonzeros Presolve removed 30 rows and 1650 columns Presolve time: 0.02s Presolved: 850 rows, 1430 columns, 3850 nonzeros Variable types: 0 continuous, 1430 integer (1430 binary) Found heuristic solution: objective 9.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 773 iterations, 0.01 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 (773 simplex iterations) in 0.03 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%