Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:54:21 2013 Optimize a model with 9982 rows, 9672 columns and 38502 nonzeros Presolve removed 31 rows and 0 columns Presolve time: 0.04s Presolved: 9951 rows, 9672 columns, 38471 nonzeros Variable types: 9641 continuous, 31 integer (31 binary) Root relaxation: objective 2.647372e+04, 1439 iterations, 0.12 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 26473.7229 0 27 - 26473.7229 - - 0s H 0 0 30301.000000 26473.7229 12.6% - 0s 0 0 28117.9200 0 1 30301.0000 28117.9200 7.20% - 0s H 0 0 28132.160000 28117.9200 0.05% - 0s H 0 0 28120.000000 28117.9200 0.01% - 0s Cutting planes: Implied bound: 20 Explored 0 nodes (1750 simplex iterations) in 0.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.812000000000e+04, best bound 2.811792000000e+04, gap 0.0074%