Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:53:26 2013 Optimize a model with 8729 rows, 8439 columns and 33669 nonzeros Presolve removed 459 rows and 0 columns Presolve time: 0.04s Presolved: 8270 rows, 8439 columns, 32751 nonzeros Variable types: 8410 continuous, 29 integer (29 binary) Root relaxation: objective 2.799289e+04, 1006 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 27992.8921 0 2 - 27992.8921 - - 0s H 0 0 28068.000000 27992.8921 0.27% - 0s H 0 0 28024.000000 27992.8921 0.11% - 0s 0 0 27993.3034 0 2 28024.0000 27993.3034 0.11% - 0s 0 0 27993.3034 0 2 28024.0000 27993.3034 0.11% - 0s 0 0 27999.4865 0 1 28024.0000 27999.4865 0.09% - 0s 0 0 28016.4444 0 1 28024.0000 28016.4444 0.03% - 0s 0 0 28016.4444 0 1 28024.0000 28016.4444 0.03% - 0s * 0 0 0 28017.000000 28017.0000 0.0% - 0s Cutting planes: Gomory: 1 Explored 0 nodes (1317 simplex iterations) in 0.33 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.801700000000e+04, best bound 2.801700000000e+04, gap 0.0%