Gurobi 5.0.1 (linux64) logging started Tue Nov 20 15:55:40 2012 Optimize a model with 220 rows, 206 columns and 440 nonzeros Presolve removed 211 rows and 198 columns Presolve time: 0.00s Presolved: 9 rows, 8 columns, 18 nonzeros Variable types: 0 continuous, 8 integer (8 binary) Found heuristic solution: objective 123.0000000 Root relaxation: cutoff, 5 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 cutoff 0 123.00000 123.99988 0.81% - 0s Explored 0 nodes (5 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.230000000000e+02, best bound 1.230000000000e+02, gap 0.0%