Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:53:16 2013 Optimize a model with 308 rows, 7868 columns and 15708 nonzeros Presolve time: 0.01s Presolved: 308 rows, 7868 columns, 15708 nonzeros Variable types: 7840 continuous, 28 integer (28 binary) Root relaxation: objective 2.858185e+04, 387 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 28581.8511 0 3 - 28581.8511 - - 0s H 0 0 29015.000000 28581.8511 1.49% - 0s 0 0 28771.5750 0 1 29015.0000 28771.5750 0.84% - 0s H 0 0 28781.000000 28771.5750 0.03% - 0s 0 0 28779.7765 0 1 28781.0000 28779.7765 0.00% - 0s Cutting planes: Implied bound: 14 Explored 0 nodes (420 simplex iterations) in 0.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.878100000000e+04, best bound 2.877977647059e+04, gap 0.0043%