Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:11:57 2013 Optimize a model with 170 rows, 10550 columns and 130605 nonzeros Presolve removed 5 rows and 245 columns Presolve time: 0.53s Presolved: 165 rows, 10305 columns, 120605 nonzeros Variable types: 10255 continuous, 50 integer (50 binary) Root relaxation: objective 1.291780e+04, 64 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 12917.7960 0 8 - 12917.7960 - - 0s 0 0 12917.8397 0 8 - 12917.8397 - - 0s 0 0 12965.5092 0 5 - 12965.5092 - - 0s 0 0 12965.5092 0 5 - 12965.5092 - - 0s H 0 0 12975.968794 12965.5092 0.08% - 0s H 0 0 12965.578780 12965.5092 0.00% - 0s Explored 0 nodes (284 simplex iterations) in 0.92 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.296557878044e+04, best bound 1.296550924446e+04, gap 0.0005%