Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:28:13 2013 Optimize a model with 160 rows, 2810 columns and 28155 nonzeros Presolve removed 5 rows and 5 columns Presolve time: 0.05s Presolved: 155 rows, 2805 columns, 25650 nonzeros Variable types: 2760 continuous, 45 integer (45 binary) Root relaxation: objective 1.291780e+04, 50 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 3 - 12917.7960 - - 0s 0 0 12917.8834 0 3 - 12917.8834 - - 0s 0 0 12958.7336 0 3 - 12958.7336 - - 0s 0 0 12963.6263 0 3 - 12963.6263 - - 0s 0 0 12965.5092 0 3 - 12965.5092 - - 0s 0 0 12965.5092 0 3 - 12965.5092 - - 0s H 0 0 12966.574292 12965.5092 0.01% - 0s Explored 0 nodes (218 simplex iterations) in 0.51 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.296657429184e+04, best bound 1.296550924446e+04, gap 0.0082%