Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:39:15 2012 Optimize a model with 2250 rows, 5700 columns and 12150 nonzeros Presolve removed 36 rows and 2700 columns Presolve time: 0.06s Presolved: 2214 rows, 3000 columns, 9450 nonzeros Variable types: 0 continuous, 3000 integer (3000 binary) Found heuristic solution: objective 16.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 1624 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 (1624 simplex iterations) in 0.08 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%