Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:52:35 2013 Optimize a model with 275 rows, 6275 columns and 12525 nonzeros Presolve time: 0.01s Presolved: 275 rows, 6275 columns, 12525 nonzeros Variable types: 6250 continuous, 25 integer (25 binary) Root relaxation: objective 2.726327e+04, 466 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 27263.2691 0 2 - 27263.2691 - - 0s H 0 0 27492.000000 27263.2691 0.83% - 0s 0 0 cutoff 0 27492.0000 27492.0000 0.0% - 0s Cutting planes: Implied bound: 32 Flow cover: 4 Explored 0 nodes (480 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.749200000000e+04, best bound 2.749200000000e+04, gap 0.0%