Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:10:30 2012 Optimize a model with 22139 rows, 27060 columns and 92658 nonzeros Presolve removed 687 rows and 4758 columns Presolve time: 0.53s Presolved: 21452 rows, 22302 columns, 86000 nonzeros Variable types: 0 continuous, 22302 integer (22302 binary) Found heuristic solution: objective 164.0000000 Root relaxation: objective 3.000000e+00, 12324 iterations, 1.00 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% - 1s Explored 0 nodes (12324 simplex iterations) in 1.59 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%