Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:38:25 2012 Optimize a model with 1407 rows, 4556 columns and 8509 nonzeros Presolve removed 37 rows and 2479 columns Presolve time: 0.03s Presolved: 1370 rows, 2077 columns, 6030 nonzeros Variable types: 0 continuous, 2077 integer (2077 binary) Found heuristic solution: objective 11.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 1341 iterations, 0.02 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 (1341 simplex iterations) in 0.05 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%