Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:53:51 2013 Optimize a model with 330 rows, 9030 columns and 18030 nonzeros Presolve time: 0.01s Presolved: 330 rows, 9030 columns, 18030 nonzeros Variable types: 9000 continuous, 30 integer (30 binary) Root relaxation: objective 2.863595e+04, 324 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 28635.9460 0 5 - 28635.9460 - - 0s H 0 0 28864.000000 28635.9460 0.79% - 0s H 0 0 28808.000000 28635.9460 0.60% - 0s 0 0 28747.8554 0 3 28808.0000 28747.8554 0.21% - 0s 0 0 28777.4536 0 4 28808.0000 28777.4536 0.11% - 0s 0 0 28777.4536 0 5 28808.0000 28777.4536 0.11% - 0s 0 0 28777.4536 0 3 28808.0000 28777.4536 0.11% - 0s 0 0 28782.1715 0 2 28808.0000 28782.1715 0.09% - 0s 0 0 28787.4658 0 4 28808.0000 28787.4658 0.07% - 0s 0 0 28791.6842 0 2 28808.0000 28791.6842 0.06% - 0s 0 0 28791.6842 0 1 28808.0000 28791.6842 0.06% - 0s * 0 0 0 28792.000000 28792.0000 0.0% - 0s Cutting planes: Implied bound: 28 Flow cover: 5 Explored 0 nodes (784 simplex iterations) in 0.16 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.879200000000e+04, best bound 2.879200000000e+04, gap 0.0%