Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:26:36 2013 Optimize a model with 1032 rows, 2046 columns and 7090 nonzeros Presolve removed 26 rows and 474 columns Presolve time: 0.15s Presolved: 1006 rows, 1572 columns, 4704 nonzeros Variable types: 1009 continuous, 563 integer (563 binary) Root relaxation: objective 5.441228e+03, 12 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 5441.22756 0 2 - 5441.22756 - - 0s 0 0 5441.24580 0 2 - 5441.24580 - - 0s 0 0 5441.61457 0 2 - 5441.61457 - - 0s H 0 0 5441.6178882 5441.61457 0.00% - 0s Explored 0 nodes (50 simplex iterations) in 0.45 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.441617888152e+03, best bound 5.441614565541e+03, gap 0.0001%