Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:51:56 2013 Optimize a model with 4641 rows, 4431 columns and 17661 nonzeros Presolve removed 821 rows and 0 columns Presolve time: 0.02s Presolved: 3820 rows, 4431 columns, 16019 nonzeros Variable types: 4410 continuous, 21 integer (21 binary) Root relaxation: objective 2.826600e+04, 634 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 28266.000000 28266.0000 0.0% - 0s Explored 0 nodes (634 simplex iterations) in 0.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.826600000000e+04, best bound 2.826600000000e+04, gap 0.0%