Gurobi 5.0.1 (linux64) logging started Tue Nov 20 15:55:45 2012 Optimize a model with 282 rows, 226 columns and 564 nonzeros Presolve removed 212 rows and 167 columns Presolve time: 0.00s Presolved: 70 rows, 59 columns, 140 nonzeros Variable types: 0 continuous, 59 integer (59 binary) Found heuristic solution: objective 122.0000000 Root relaxation: objective 1.265000e+02, 63 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 126.50000 0 59 122.00000 126.50000 3.69% - 0s H 0 0 125.0000000 126.50000 1.20% - 0s 0 0 cutoff 0 125.00000 125.99987 0.80% - 0s Cutting planes: Zero half: 5 Explored 0 nodes (91 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%