Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:48:16 2013 Optimize a model with 704 rows, 41024 columns and 81984 nonzeros Presolve time: 0.06s Presolved: 704 rows, 41024 columns, 81984 nonzeros Variable types: 40960 continuous, 64 integer (64 binary) Root relaxation: objective 6.021857e+04, 1475 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 60218.5677 0 12 - 60218.5677 - - 0s H 0 0 66972.000000 60218.5677 10.1% - 0s H 0 0 66356.000000 60218.5677 9.25% - 0s 0 0 60650.7264 0 5 66356.0000 60650.7264 8.60% - 0s H 0 0 64290.619729 60650.7264 5.66% - 0s H 0 0 63819.000000 60650.7264 4.96% - 0s 0 0 60668.1044 0 6 63819.0000 60668.1044 4.94% - 0s H 0 0 62935.000000 60668.1044 3.60% - 0s 0 0 60676.1511 0 7 62935.0000 60676.1511 3.59% - 0s 0 0 60692.8886 0 5 62935.0000 60692.8886 3.56% - 0s 0 0 60704.6018 0 5 62935.0000 60704.6018 3.54% - 0s H 0 0 62851.000000 60704.6018 3.42% - 0s 0 0 60716.0547 0 5 62851.0000 60716.0547 3.40% - 0s 0 0 60720.2735 0 5 62851.0000 60720.2735 3.39% - 0s H 0 0 62825.000000 60720.2735 3.35% - 0s 0 0 60723.1634 0 5 62825.0000 60723.1634 3.35% - 0s 0 0 60723.1634 0 5 62825.0000 60723.1634 3.35% - 0s H 0 0 62612.000000 60723.1634 3.02% - 1s 0 2 60735.6057 0 5 62612.0000 60735.6057 3.00% - 1s H 4 4 61699.000000 61012.5915 1.11% 64.8 1s H 5 5 61415.585366 61012.5915 0.66% 76.6 1s H 11 8 61252.000000 61012.5915 0.39% 62.2 1s * 16 10 14 61235.000000 61012.5915 0.36% 48.2 1s * 27 13 10 61219.000000 61042.9222 0.29% 43.1 1s H 45 2 61179.000000 61149.3696 0.05% 42.9 1s Cutting planes: Implied bound: 190 Flow cover: 21 Explored 50 nodes (4008 simplex iterations) in 1.92 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.117900000000e+04, best bound 6.117428985507e+04, gap 0.0077%