Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:11:08 2012 Optimize a model with 22631 rows, 27060 columns and 94134 nonzeros Presolve removed 359 rows and 4758 columns Presolve time: 0.53s Presolved: 22272 rows, 22302 columns, 88286 nonzeros Variable types: 0 continuous, 22302 integer (22302 binary) Found heuristic solution: objective 164.0000000 Root relaxation: objective 3.000000e+00, 15792 iterations, 1.44 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% - 9s Explored 0 nodes (33444 simplex iterations) in 9.25 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%