Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:52:29 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 2.111866e+04, 721 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 21118.6607 0 18 - 21118.6607 - - 0s H 0 0 22727.000000 21118.6607 7.08% - 0s 0 0 21994.0204 0 1 22727.0000 21994.0204 3.23% - 0s H 0 0 22018.632653 21994.0204 0.11% - 0s H 0 0 22001.000000 21994.0204 0.03% - 0s 0 0 22000.8696 0 1 22001.0000 22000.8696 0.00% - 0s Cutting planes: Implied bound: 15 Explored 0 nodes (924 simplex iterations) in 0.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.200100000000e+04, best bound 2.200086956522e+04, gap 0.0006%