Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:09:49 2012 Optimize a model with 12634 rows, 17822 columns and 55060 nonzeros Presolve removed 296 rows and 3726 columns Presolve time: 0.24s Presolved: 12338 rows, 14096 columns, 50485 nonzeros Variable types: 0 continuous, 14096 integer (14096 binary) Found heuristic solution: objective 133.0000000 Root relaxation: objective 3.000000e+00, 8770 iterations, 0.47 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% - 3s Explored 0 nodes (20515 simplex iterations) in 3.51 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%