Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:51:42 2013 Optimize a model with 3819 rows, 3629 columns and 14459 nonzeros Presolve removed 569 rows and 0 columns Presolve time: 0.02s Presolved: 3250 rows, 3629 columns, 13321 nonzeros Variable types: 3610 continuous, 19 integer (19 binary) Root relaxation: objective 2.390339e+04, 464 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 23903.3933 0 2 - 23903.3933 - - 0s H 0 0 23968.000000 23903.3933 0.27% - 0s 0 0 23959.4748 0 2 23968.0000 23959.4748 0.04% - 0s 0 0 cutoff 0 23968.0000 23968.0000 0.0% - 0s Cutting planes: Gomory: 3 Flow cover: 1 Explored 0 nodes (507 simplex iterations) in 0.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.396800000000e+04, best bound 2.396800000000e+04, gap 0.0%