Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:46:21 2013 Optimize a model with 28 rows, 246 columns and 688 nonzeros Presolve removed 22 rows and 33 columns Presolve time: 0.00s Presolved: 6 rows, 213 columns, 424 nonzeros Variable types: 213 continuous, 0 integer (0 binary) Root relaxation: objective 5.420106e+03, 6 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 5420.10604 0 1 - 5420.10604 - - 0s 0 2 5420.10604 0 1 - 5420.10604 - - 0s * 11 3 6 5441.6169227 5441.61447 0.00% 1.2 0s Explored 12 nodes (19 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.441616922670e+03, best bound 5.441614472225e+03, gap 0.0000%