Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:39:16 2012 Optimize a model with 2325 rows, 5700 columns and 12375 nonzeros Presolve removed 34 rows and 2550 columns Presolve time: 0.06s Presolved: 2291 rows, 3150 columns, 9825 nonzeros Variable types: 0 continuous, 3150 integer (3150 binary) Found heuristic solution: objective 15.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 2193 iterations, 0.03 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 (2193 simplex iterations) in 0.10 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%