Gurobi 5.0.1 (linux64) logging started Tue Nov 20 15:55:45 2012 Optimize a model with 277 rows, 226 columns and 554 nonzeros Presolve removed 253 rows and 205 columns Presolve time: 0.00s Presolved: 24 rows, 21 columns, 48 nonzeros Variable types: 0 continuous, 21 integer (21 binary) Found heuristic solution: objective 127.0000000 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 0 127.00000 127.99987 0.79% - 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 1.270000000000e+02, best bound 1.270000000000e+02, gap 0.0%