Gurobi 5.0.1 (linux64) logging started Tue Nov 20 15:55:41 2012 Optimize a model with 253 rows, 209 columns and 506 nonzeros Presolve removed 236 rows and 194 columns Presolve time: 0.00s Presolved: 17 rows, 15 columns, 34 nonzeros Variable types: 0 continuous, 15 integer (15 binary) Found heuristic solution: objective 120.0000000 Root relaxation: cutoff, 16 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 cutoff 0 120.00000 120.99988 0.83% - 0s Explored 0 nodes (16 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.200000000000e+02, best bound 1.200000000000e+02, gap 0.0%