Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:43:47 2013 Optimize a model with 400 rows, 4420 columns and 9340 nonzeros Presolve removed 20 rows and 140 columns Presolve time: 0.01s Presolved: 380 rows, 4280 columns, 9140 nonzeros Variable types: 4220 continuous, 60 integer (60 binary) Root relaxation: objective 4.642213e+04, 426 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 46422.1265 0 3 - 46422.1265 - - 0s 0 0 46449.0913 0 3 - 46449.0913 - - 0s 0 0 46451.7036 0 2 - 46451.7036 - - 0s 0 0 46452.4225 0 3 - 46452.4225 - - 0s 0 0 46455.1190 0 2 - 46455.1190 - - 0s 0 0 46456.9764 0 2 - 46456.9764 - - 0s 0 0 46456.9764 0 2 - 46456.9764 - - 0s 0 0 46456.9764 0 2 - 46456.9764 - - 0s 0 0 46456.9764 0 2 - 46456.9764 - - 0s 0 0 46456.9764 0 2 - 46456.9764 - - 0s H 0 0 46797.542467 46456.9764 0.73% - 0s 0 2 46465.8104 0 2 46797.5425 46465.8104 0.71% - 0s * 15 3 5 46739.727868 46674.7292 0.14% 34.5 0s Cutting planes: Flow cover: 9 Explored 18 nodes (1279 simplex iterations) in 0.19 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.673972786769e+04, best bound 4.673972786769e+04, gap 0.0%