Gurobi 5.0.1 (linux64) logging started Tue Nov 20 15:55:41 2012 Optimize a model with 255 rows, 212 columns and 510 nonzeros Presolve removed 229 rows and 189 columns Presolve time: 0.00s Presolved: 26 rows, 23 columns, 52 nonzeros Variable types: 0 continuous, 23 integer (23 binary) Found heuristic solution: objective 122.0000000 Root relaxation: objective 1.230000e+02, 20 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 123.0000000 123.00000 0.0% - 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 1.230000000000e+02, best bound 1.230000000000e+02, gap 0.0%