Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:47:29 2012 Optimize a model with 6137 rows, 9900 columns and 27817 nonzeros Presolve removed 398 rows and 2 columns Presolve time: 0.14s Presolved: 5838 rows, 9898 columns, 36512 nonzeros Variable types: 0 continuous, 9898 integer (9898 binary) Found heuristic solution: objective 98.0000000 Root relaxation: objective 3.000000e+00, 4232 iterations, 0.13 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 (9546 simplex iterations) in 1.00 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%