Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:55:19 2013 Optimize a model with 340 rows, 1620 columns and 3610 nonzeros Presolve removed 20 rows and 30 columns Presolve time: 0.01s Presolved: 320 rows, 1590 columns, 3180 nonzeros Variable types: 1400 continuous, 190 integer (190 binary) Root relaxation: objective 2.199252e+04, 106 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 21992.5209 0 2 - 21992.5209 - - 0s 0 0 22003.3296 0 2 - 22003.3296 - - 0s 0 0 22004.2362 0 2 - 22004.2362 - - 0s 0 0 22004.2362 0 2 - 22004.2362 - - 0s H 0 0 23295.935973 22004.2362 5.54% - 0s 0 2 22033.6425 0 2 23295.9360 22033.6425 5.42% - 0s * 8 6 6 22151.304875 22066.6295 0.38% 3.9 0s * 11 3 6 22134.781031 22066.6295 0.31% 3.5 0s Cutting planes: Gomory: 2 Flow cover: 2 Explored 20 nodes (221 simplex iterations) in 0.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.213478103149e+04, best bound 2.213478103149e+04, gap 0.0%