Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:51:41 2013 Optimize a model with 3456 rows, 3276 columns and 12996 nonzeros Presolve removed 18 rows and 0 columns Presolve time: 0.01s Presolved: 3438 rows, 3276 columns, 12978 nonzeros Variable types: 3258 continuous, 18 integer (18 binary) Root relaxation: objective 2.263402e+04, 534 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 22634.0150 0 12 - 22634.0150 - - 0s H 0 0 23474.000000 22634.0150 3.58% - 0s * 0 0 0 23166.000000 23166.0000 0.0% - 0s Cutting planes: Gomory: 6 Implied bound: 11 Explored 0 nodes (674 simplex iterations) in 0.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.316600000000e+04, best bound 2.316600000000e+04, gap 0.0%