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 2.418766e+04, 291 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 24187.6566 0 3 - 24187.6566 - - 0s H 0 0 24338.000000 24187.6566 0.62% - 0s 0 0 cutoff 0 24338.0000 24338.0000 0.0% - 0s Cutting planes: Implied bound: 31 Flow cover: 6 Explored 0 nodes (350 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.433800000000e+04, best bound 2.433800000000e+04, gap 0.0%