Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:42:04 2013 Optimize a model with 280 rows, 5060 columns and 11080 nonzeros Presolve removed 20 rows and 20 columns Presolve time: 0.01s Presolved: 260 rows, 5040 columns, 10060 nonzeros Variable types: 5040 continuous, 0 integer (0 binary) Root relaxation: objective 3.860476e+04, 392 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 38604.7615 0 3 - 38604.7615 - - 0s 0 2 38604.7615 0 3 - 38604.7615 - - 0s * 22 8 11 38861.052123 38851.1992 0.03% 17.1 0s Explored 28 nodes (771 simplex iterations) in 0.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.886105212265e+04, best bound 3.885729417576e+04, gap 0.0097%