Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:52:36 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 2.592655e+04, 306 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 25926.5470 0 3 - 25926.5470 - - 0s H 0 0 26161.000000 25926.5470 0.90% - 0s 0 0 26153.3404 0 3 26161.0000 26153.3404 0.03% - 0s 0 0 26159.8500 0 1 26161.0000 26159.8500 0.00% - 0s Cutting planes: Implied bound: 83 Flow cover: 7 Explored 0 nodes (335 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.616100000000e+04, best bound 2.615985000000e+04, gap 0.0044%