Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:51:50 2013 Optimize a model with 220 rows, 4020 columns and 8020 nonzeros Presolve time: 0.00s Presolved: 220 rows, 4020 columns, 8020 nonzeros Variable types: 4000 continuous, 20 integer (20 binary) Root relaxation: objective 2.461713e+04, 207 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 24617.1348 0 3 - 24617.1348 - - 0s H 0 0 24797.000000 24617.1348 0.73% - 0s 0 0 cutoff 0 24797.0000 24797.0000 0.0% - 0s Cutting planes: Implied bound: 33 Flow cover: 3 Explored 0 nodes (223 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.479700000000e+04, best bound 2.479700000000e+04, gap 0.0%