Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:52:30 2013 Optimize a model with 6048 rows, 5808 columns and 23088 nonzeros Presolve removed 24 rows and 0 columns Presolve time: 0.03s Presolved: 6024 rows, 5808 columns, 23064 nonzeros Variable types: 5784 continuous, 24 integer (24 binary) Root relaxation: objective 2.182337e+04, 858 iterations, 0.06 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 21823.3664 0 19 - 21823.3664 - - 0s H 0 0 23856.000000 21823.3664 8.52% - 0s H 0 0 23617.000000 21823.3664 7.59% - 0s 0 0 22705.4878 0 1 23617.0000 22705.4878 3.86% - 0s H 0 0 23189.512195 22705.4878 2.09% - 0s H 0 0 22947.000000 22705.4878 1.05% - 0s H 0 0 22712.000000 22705.4878 0.03% - 0s 0 0 cutoff 0 22712.0000 22712.0000 0.0% - 0s Cutting planes: Implied bound: 16 Explored 1 nodes (1113 simplex iterations) in 0.29 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.271200000000e+04, best bound 2.271200000000e+04, gap 0.0%