Gurobi 5.0.1 (linux64) logging started Tue Nov 20 15:55:45 2012 Optimize a model with 261 rows, 228 columns and 522 nonzeros Presolve removed 252 rows and 219 columns Presolve time: 0.00s Presolved: 9 rows, 9 columns, 18 nonzeros Variable types: 0 continuous, 9 integer (9 binary) Found heuristic solution: objective 124.0000000 Root relaxation: objective 1.255000e+02, 9 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 125.50000 0 9 124.00000 125.50000 1.21% - 0s H 0 0 125.0000000 125.50000 0.40% - 0s Explored 0 nodes (9 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.250000000000e+02, best bound 1.250000000000e+02, gap 0.0%