Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:53:29 2013 Optimize a model with 8729 rows, 8439 columns and 33669 nonzeros Presolve removed 923 rows and 0 columns Presolve time: 0.05s Presolved: 7806 rows, 8439 columns, 31823 nonzeros Variable types: 8410 continuous, 29 integer (29 binary) Root relaxation: objective 2.915369e+04, 1405 iterations, 0.07 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 29153.6932 0 4 - 29153.6932 - - 0s H 0 0 29417.000000 29153.6932 0.90% - 0s H 0 0 29317.000000 29153.6932 0.56% - 0s H 0 0 29197.000000 29153.6932 0.15% - 0s 0 0 29164.5007 0 4 29197.0000 29164.5007 0.11% - 0s 0 0 29164.8568 0 5 29197.0000 29164.8568 0.11% - 0s 0 0 29164.8751 0 4 29197.0000 29164.8751 0.11% - 0s H 0 0 29175.000000 29164.8751 0.03% - 0s 0 0 29164.9385 0 5 29175.0000 29164.9385 0.03% - 0s 0 0 29164.9385 0 5 29175.0000 29164.9385 0.03% - 0s 0 0 29166.7724 0 3 29175.0000 29166.7724 0.03% - 0s 0 0 29166.7724 0 3 29175.0000 29166.7724 0.03% - 0s 0 0 29166.8462 0 2 29175.0000 29166.8462 0.03% - 0s 0 0 29166.8462 0 2 29175.0000 29166.8462 0.03% - 0s 0 0 29172.5000 0 1 29175.0000 29172.5000 0.01% - 0s Cutting planes: Gomory: 2 Flow cover: 2 Explored 0 nodes (2094 simplex iterations) in 0.60 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.917500000000e+04, best bound 2.917250000000e+04, gap 0.0086%