Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:36:53 2012 Optimize a model with 200 rows, 1640 columns and 2080 nonzeros Presolve removed 32 rows and 1280 columns Presolve time: 0.00s Presolved: 168 rows, 360 columns, 800 nonzeros Variable types: 0 continuous, 360 integer (360 binary) Found heuristic solution: objective 3.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 189 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 (189 simplex iterations) in 0.01 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%