Gurobi 5.0.1 (linux64) logging started Fri Nov 16 19:33:55 2012 Optimize a model with 13287 rows, 16770 columns and 56115 nonzeros Presolve removed 285 rows and 3483 columns Presolve time: 0.26s Presolved: 13002 rows, 13287 columns, 51987 nonzeros Variable types: 0 continuous, 13287 integer (13287 binary) Found heuristic solution: objective 50.0000000 Root relaxation: objective 3.000000e+00, 16078 iterations, 1.26 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 (20985 simplex iterations) in 2.36 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%