Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:24:26 2012 Optimize a model with 7570 rows, 4556 columns and 26932 nonzeros Presolve removed 605 rows and 2 columns Presolve time: 0.25s Presolved: 7032 rows, 4554 columns, 29739 nonzeros Variable types: 0 continuous, 4554 integer (4554 binary) Found heuristic solution: objective 67.0000000 Root relaxation: objective 3.000000e+00, 5628 iterations, 0.61 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 (15691 simplex iterations) in 2.13 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%