Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:55:36 2013 Optimize a model with 680 rows, 5240 columns and 11220 nonzeros Presolve removed 40 rows and 60 columns Presolve time: 0.04s Presolved: 640 rows, 5180 columns, 10360 nonzeros Variable types: 4800 continuous, 380 integer (380 binary) Root relaxation: objective 3.573401e+04, 434 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 35734.0139 0 3 - 35734.0139 - - 0s 0 0 35790.4311 0 6 - 35790.4311 - - 0s 0 0 35792.7976 0 5 - 35792.7976 - - 0s 0 0 35793.4704 0 5 - 35793.4704 - - 0s 0 0 35793.4704 0 5 - 35793.4704 - - 0s H 0 0 36208.602569 35793.4704 1.15% - 0s 0 2 35794.4982 0 5 36208.6026 35794.4982 1.14% - 0s * 23 15 22 36182.120226 35860.1845 0.89% 8.3 0s H 83 14 36173.352826 36066.7217 0.29% 12.6 0s Cutting planes: Gomory: 3 Flow cover: 13 Explored 110 nodes (2032 simplex iterations) in 0.63 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.617335282586e+04, best bound 3.617007320529e+04, gap 0.0091%