Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:55:13 2012 Optimize a model with 19151 rows, 23256 columns and 79950 nonzeros Presolve removed 306 rows and 2 columns Presolve time: 0.38s Presolved: 18997 rows, 23254 columns, 102046 nonzeros Variable types: 0 continuous, 23254 integer (23254 binary) Found heuristic solution: objective 152.0000000 Root relaxation: objective 3.000000e+00, 13301 iterations, 1.42 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 (29951 simplex iterations) in 2.67 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%