Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:55:37 2013 Optimize a model with 680 rows, 5240 columns and 11220 nonzeros Presolve removed 40 rows and 60 columns Presolve time: 0.03s Presolved: 640 rows, 5180 columns, 10360 nonzeros Variable types: 4800 continuous, 380 integer (380 binary) Root relaxation: objective 3.600389e+04, 406 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 36003.8892 0 2 - 36003.8892 - - 0s 0 0 36089.3642 0 4 - 36089.3642 - - 0s 0 0 36104.3522 0 4 - 36104.3522 - - 0s 0 0 36104.7713 0 4 - 36104.7713 - - 0s 0 0 36107.4176 0 4 - 36107.4176 - - 0s 0 0 36108.5895 0 3 - 36108.5895 - - 0s 0 0 36108.5895 0 3 - 36108.5895 - - 0s 0 0 36109.3792 0 4 - 36109.3792 - - 0s 0 0 36109.4319 0 4 - 36109.4319 - - 0s 0 0 36109.4319 0 4 - 36109.4319 - - 0s 0 0 36109.4319 0 4 - 36109.4319 - - 0s H 0 0 36232.698307 36109.4319 0.34% - 0s 0 2 36139.4435 0 2 36232.6983 36139.4435 0.26% - 0s * 5 2 4 36205.357085 36196.1232 0.03% 14.2 0s * 7 1 4 36202.337419 36196.1232 0.02% 11.7 0s Cutting planes: Gomory: 2 Flow cover: 10 Explored 9 nodes (784 simplex iterations) in 0.28 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.620233741901e+04, best bound 3.620233741901e+04, gap 0.0%