Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:57:42 2013 Optimize a model with 1700 rows, 28100 columns and 58050 nonzeros Presolve removed 100 rows and 150 columns Presolve time: 0.29s Presolved: 1600 rows, 27950 columns, 55900 nonzeros Variable types: 27000 continuous, 950 integer (950 binary) Root relaxation: objective 1.650739e+05, 3010 iterations, 0.15 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 165073.856 0 2 - 165073.856 - - 0s 0 0 165130.023 0 2 - 165130.023 - - 0s 0 0 165135.530 0 2 - 165135.530 - - 0s 0 0 165216.537 0 2 - 165216.537 - - 0s 0 0 165245.411 0 2 - 165245.411 - - 1s 0 0 165295.789 0 2 - 165295.789 - - 1s 0 0 165339.294 0 2 - 165339.294 - - 1s 0 0 165351.204 0 2 - 165351.204 - - 1s 0 0 165354.665 0 2 - 165354.665 - - 1s 0 0 165355.657 0 2 - 165355.657 - - 1s 0 0 165357.670 0 2 - 165357.670 - - 1s 0 0 165359.680 0 2 - 165359.680 - - 1s 0 0 165366.021 0 2 - 165366.021 - - 1s 0 0 165367.548 0 2 - 165367.548 - - 2s 0 0 165367.977 0 2 - 165367.977 - - 2s 0 0 165368.189 0 2 - 165368.189 - - 2s 0 0 165368.336 0 2 - 165368.336 - - 2s 0 0 165368.336 0 2 - 165368.336 - - 2s H 0 0 181428.65903 165368.336 8.85% - 2s 0 2 165368.738 0 2 181428.659 165368.738 8.85% - 2s * 11 4 11 165621.28759 165494.632 0.08% 27.4 3s Cutting planes: Flow cover: 26 Explored 26 nodes (4037 simplex iterations) in 3.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.656212875856e+05, best bound 1.656212875856e+05, gap 0.0%