Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:15:23 2012 Optimize a model with 12864 rows, 18090 columns and 56146 nonzeros Presolve removed 299 rows and 4154 columns Presolve time: 0.25s Presolved: 12565 rows, 13936 columns, 51322 nonzeros Variable types: 0 continuous, 13936 integer (13936 binary) Found heuristic solution: objective 41.0000000 Root relaxation: objective 3.000000e+00, 13980 iterations, 0.95 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% - 2s Explored 0 nodes (19026 simplex iterations) in 2.09 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%