Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:51:52 2013 Optimize a model with 4240 rows, 4040 columns and 16040 nonzeros Presolve removed 20 rows and 0 columns Presolve time: 0.02s Presolved: 4220 rows, 4040 columns, 16020 nonzeros Variable types: 4020 continuous, 20 integer (20 binary) Root relaxation: objective 2.401977e+04, 760 iterations, 0.05 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 24019.7664 0 16 - 24019.7664 - - 0s H 0 0 24935.000000 24019.7664 3.67% - 0s * 0 0 0 24797.000000 24797.0000 0.0% - 0s Cutting planes: Gomory: 15 Implied bound: 15 Explored 0 nodes (945 simplex iterations) in 0.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.479700000000e+04, best bound 2.479700000000e+04, gap 0.0%