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 2.577965e+04, 280 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 25779.6546 0 2 - 25779.6546 - - 0s H 0 0 26051.000000 25779.6546 1.04% - 0s H 0 0 26002.000000 25779.6546 0.86% - 0s 0 0 25989.4151 0 2 26002.0000 25989.4151 0.05% - 0s 0 0 26000.3930 0 2 26002.0000 26000.3930 0.01% - 0s Cutting planes: Implied bound: 36 Flow cover: 3 Explored 0 nodes (352 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.600200000000e+04, best bound 2.600039298246e+04, gap 0.0062%