Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:43:32 2012 Optimize a model with 14279 rows, 18632 columns and 60790 nonzeros Presolve removed 306 rows and 4354 columns Presolve time: 0.28s Presolved: 13973 rows, 14278 columns, 55552 nonzeros Variable types: 0 continuous, 14278 integer (14278 binary) Found heuristic solution: objective 136.0000000 Root relaxation: objective 3.000000e+00, 10051 iterations, 0.77 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% - 4s Explored 0 nodes (25695 simplex iterations) in 4.09 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%