Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:53:42 2013 Optimize a model with 8758 rows, 8468 columns and 33698 nonzeros Presolve removed 29 rows and 0 columns Presolve time: 0.04s Presolved: 8729 rows, 8468 columns, 33669 nonzeros Variable types: 8439 continuous, 29 integer (29 binary) Root relaxation: objective 2.833937e+04, 1400 iterations, 0.15 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 28339.3727 0 24 - 28339.3727 - - 0s H 0 0 30435.000000 28339.3727 6.89% - 0s 0 0 29824.8507 0 2 30435.0000 29824.8507 2.00% - 0s H 0 0 29905.040943 29824.8507 0.27% - 0s H 0 0 29865.000000 29824.8507 0.13% - 0s H 0 0 29846.000000 29824.8507 0.07% - 0s 0 0 29838.8077 0 1 29846.0000 29838.8077 0.02% - 0s 0 2 29839.9200 0 1 29846.0000 29839.9200 0.02% - 0s Cutting planes: Implied bound: 19 Explored 2 nodes (1800 simplex iterations) in 0.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.984600000000e+04, best bound 2.984500000000e+04, gap 0.0034%