Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:13:15 2012 Optimize a model with 2069 rows, 2162 columns and 8140 nonzeros Presolve removed 278 rows and 2 columns Presolve time: 0.09s Presolved: 1837 rows, 2160 columns, 9488 nonzeros Variable types: 0 continuous, 2160 integer (2160 binary) Found heuristic solution: objective 46.0000000 Root relaxation: objective 3.000000e+00, 1279 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 3.0000000 3.00000 0.0% - 0s Explored 0 nodes (2604 simplex iterations) in 0.20 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%