Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:43:44 2012 Optimize a model with 13735 rows, 18632 columns and 59158 nonzeros Presolve removed 274 rows and 2 columns Presolve time: 0.23s Presolved: 13597 rows, 18630 columns, 76776 nonzeros Variable types: 0 continuous, 18630 integer (18630 binary) Found heuristic solution: objective 136.0000000 Root relaxation: objective 3.000000e+00, 7957 iterations, 0.54 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 38 136.00000 3.00000 97.8% - 4s H 0 0 3.0000000 3.00000 0.0% - 4s Explored 0 nodes (27225 simplex iterations) in 4.98 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%