Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:36:54 2012 Optimize a model with 240 rows, 1640 columns and 2200 nonzeros Presolve removed 30 rows and 1200 columns Presolve time: 0.01s Presolved: 210 rows, 440 columns, 1000 nonzeros Variable types: 0 continuous, 440 integer (440 binary) Found heuristic solution: objective 3.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 236 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 (236 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%