Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:51:24 2013 Optimize a model with 2128 rows, 1988 columns and 7868 nonzeros Presolve removed 14 rows and 0 columns Presolve time: 0.01s Presolved: 2114 rows, 1988 columns, 7854 nonzeros Variable types: 1974 continuous, 14 integer (14 binary) Root relaxation: objective 2.795335e+04, 691 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 27953.3452 0 9 - 27953.3452 - - 0s H 0 0 28381.000000 27953.3452 1.51% - 0s H 0 0 28359.000000 27953.3452 1.43% - 0s 0 0 cutoff 0 28359.0000 28359.0000 0.0% - 0s Cutting planes: Gomory: 4 Implied bound: 9 Explored 0 nodes (772 simplex iterations) in 0.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.835900000000e+04, best bound 2.835900000000e+04, gap 0.0%