Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:52:25 2013 Optimize a model with 264 rows, 5784 columns and 11544 nonzeros Presolve time: 0.01s Presolved: 264 rows, 5784 columns, 11544 nonzeros Variable types: 5760 continuous, 24 integer (24 binary) Root relaxation: objective 2.188119e+04, 167 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 21881.1878 0 5 - 21881.1878 - - 0s H 0 0 22290.000000 21881.1878 1.83% - 0s H 0 0 22001.000000 21881.1878 0.54% - 0s 0 0 21999.7419 0 1 22001.0000 21999.7419 0.01% - 0s Cutting planes: Implied bound: 47 Flow cover: 8 Explored 0 nodes (191 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.200100000000e+04, best bound 2.199974193548e+04, gap 0.0057%