Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:04:36 2012 Optimize a model with 21279 rows, 25760 columns and 88798 nonzeros Presolve removed 348 rows and 4162 columns Presolve time: 0.50s Presolved: 20931 rows, 21598 columns, 83576 nonzeros Variable types: 0 continuous, 21598 integer (21598 binary) Found heuristic solution: objective 160.0000000 Root relaxation: objective 3.000000e+00, 13784 iterations, 0.81 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 (13784 simplex iterations) in 1.36 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%