Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:00:05 2012 Optimize a model with 23867 rows, 24492 columns and 95314 nonzeros Presolve removed 336 rows and 3434 columns Presolve time: 0.56s Presolved: 23531 rows, 21058 columns, 90800 nonzeros Variable types: 0 continuous, 21058 integer (21058 binary) Found heuristic solution: objective 156.0000000 Root relaxation: objective 3.000000e+00, 13472 iterations, 1.55 seconds Total elapsed time = 8.04s 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 (40105 simplex iterations) in 9.01 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%