Gurobi 5.0.1 (linux64) logging started Fri Nov 16 19:43:45 2012 Optimize a model with 13780 rows, 17030 columns and 57850 nonzeros Presolve removed 285 rows and 3250 columns Presolve time: 0.27s Presolved: 13495 rows, 13780 columns, 53950 nonzeros Variable types: 0 continuous, 13780 integer (13780 binary) Found heuristic solution: objective 49.0000000 Root relaxation: objective 3.000000e+00, 15561 iterations, 1.24 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 (23790 simplex iterations) in 2.62 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%