Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:51:55 2013 Optimize a model with 4641 rows, 4431 columns and 17661 nonzeros Presolve removed 210 rows and 0 columns Presolve time: 0.02s Presolved: 4431 rows, 4431 columns, 17241 nonzeros Variable types: 4410 continuous, 21 integer (21 binary) Root relaxation: objective 2.344900e+04, 416 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 23449.000000 23449.0000 0.0% - 0s Explored 0 nodes (416 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.344900000000e+04, best bound 2.344900000000e+04, gap 0.0%