Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:42:05 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 3.894400e+04, 449 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 38944.0027 0 2 - 38944.0027 - - 0s 0 2 38944.0027 0 2 - 38944.0027 - - 0s * 49 17 25 39391.955249 39207.7362 0.47% 17.6 0s * 65 5 8 39247.120171 39247.0769 0.00% 14.2 0s Explored 66 nodes (1370 simplex iterations) in 0.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.924712017140e+04, best bound 3.924707687686e+04, gap 0.0001%