Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:09:57 2012 Optimize a model with 2030 rows, 1260 columns and 7210 nonzeros Presolve removed 456 rows and 35 columns Presolve time: 0.03s Presolved: 1574 rows, 1225 columns, 6090 nonzeros Variable types: 0 continuous, 1225 integer (1225 binary) Found heuristic solution: objective 21.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: cutoff, 1332 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 3.00000 2.00000 33.3% - 0s Explored 0 nodes (1332 simplex iterations) in 0.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%