Gurobi 5.0.1 (linux64) logging started Tue Nov 20 15:55:49 2012 Optimize a model with 318 rows, 244 columns and 636 nonzeros Presolve removed 295 rows and 223 columns Presolve time: 0.00s Presolved: 23 rows, 21 columns, 46 nonzeros Variable types: 0 continuous, 21 integer (21 binary) Found heuristic solution: objective 136.0000000 Root relaxation: cutoff, 20 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 cutoff 0 136.00000 136.99986 0.74% - 0s Explored 0 nodes (20 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.360000000000e+02, best bound 1.360000000000e+02, gap 0.0%