Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:42:45 2012 Optimize a model with 10439 rows, 5256 columns and 36214 nonzeros Presolve removed 1083 rows and 74 columns Presolve time: 0.44s Presolved: 9356 rows, 5182 columns, 33218 nonzeros Variable types: 0 continuous, 5182 integer (5182 binary) Found heuristic solution: objective 72.0000000 Root relaxation: objective 3.000000e+00, 5866 iterations, 0.84 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% - 3s Explored 0 nodes (19011 simplex iterations) in 3.58 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%