Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:27:36 2013 Optimize a model with 160 rows, 5425 columns and 60595 nonzeros Presolve removed 5 rows and 125 columns Presolve time: 0.16s Presolved: 155 rows, 5300 columns, 55595 nonzeros Variable types: 5255 continuous, 45 integer (45 binary) Root relaxation: objective 1.291780e+04, 60 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 12917.7960 0 7 - 12917.7960 - - 0s 0 0 12917.8834 0 7 - 12917.8834 - - 0s 0 0 12965.5092 0 4 - 12965.5092 - - 0s 0 0 12965.5092 0 4 - 12965.5092 - - 0s 0 0 12965.5092 0 4 - 12965.5092 - - 1s 0 0 12965.5092 0 4 - 12965.5092 - - 1s H 0 0 12965.578650 12965.5092 0.00% - 1s Explored 0 nodes (431 simplex iterations) in 1.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.296557864978e+04, best bound 1.296550924446e+04, gap 0.0005%