Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:15:43 2012 Optimize a model with 4239 rows, 2862 columns and 15315 nonzeros Presolve removed 214 rows and 2 columns Presolve time: 0.09s Presolved: 4078 rows, 2860 columns, 17442 nonzeros Variable types: 0 continuous, 2860 integer (2860 binary) Found heuristic solution: objective 53.0000000 Root relaxation: objective 3.000000e+00, 2791 iterations, 0.14 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% - 0s Explored 0 nodes (8686 simplex iterations) in 0.57 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%