Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:40:58 2013 Optimize a model with 2280 rows, 6040 columns and 16020 nonzeros Presolve removed 60 rows and 40 columns Presolve time: 0.17s Presolved: 2220 rows, 6000 columns, 13960 nonzeros Variable types: 5020 continuous, 980 integer (980 binary) Root relaxation: objective 4.642213e+04, 1126 iterations, 0.05 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 46456.1748 0 3 - 46456.1748 - - 0s 0 0 46464.6166 0 3 - 46464.6166 - - 0s 0 0 46464.6862 0 3 - 46464.6862 - - 0s 0 0 46465.1030 0 3 - 46465.1030 - - 0s 0 0 46465.5096 0 3 - 46465.5096 - - 0s 0 0 46465.5131 0 4 - 46465.5131 - - 0s 0 0 46465.8771 0 3 - 46465.8771 - - 0s 0 0 46466.0888 0 3 - 46466.0888 - - 0s 0 0 46466.8184 0 4 - 46466.8184 - - 0s 0 0 46467.3289 0 3 - 46467.3289 - - 0s 0 0 46467.6764 0 3 - 46467.6764 - - 0s 0 0 46467.8340 0 3 - 46467.8340 - - 0s 0 0 46468.0271 0 3 - 46468.0271 - - 0s H 0 0 51346.855906 46468.0271 9.50% - 1s 0 2 46471.0339 0 3 51346.8559 46471.0339 9.50% - 1s H 24 24 46776.285399 46480.2479 0.63% 20.0 1s * 650 268 38 46774.565651 46593.6353 0.39% 13.7 3s 1998 242 46773.3006 29 2 46774.5657 46667.0033 0.23% 12.2 5s H 2063 220 46768.286366 46673.8263 0.20% 12.5 5s * 2065 217 37 46765.281368 46673.8263 0.20% 12.5 5s * 2121 195 35 46757.516843 46679.7509 0.17% 12.5 5s * 2292 97 35 46749.729663 46702.7288 0.10% 12.6 5s * 2295 95 34 46749.553156 46702.7288 0.10% 12.6 5s H 2427 11 46743.774076 46727.0045 0.04% 12.4 5s Explored 2442 nodes (31409 simplex iterations) in 5.59 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.674377407618e+04, best bound 4.673938024903e+04, gap 0.0094%