Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:26:07 2012 Optimize a model with 7175 rows, 4830 columns and 26011 nonzeros Presolve removed 419 rows and 209 columns Presolve time: 0.26s Presolved: 6756 rows, 4621 columns, 24573 nonzeros Variable types: 0 continuous, 4621 integer (4621 binary) Found heuristic solution: objective 69.0000000 Root relaxation: objective 3.000000e+00, 5136 iterations, 0.35 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 (15794 simplex iterations) in 1.73 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%