Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:40:48 2013 Optimize a model with 682 rows, 38502 columns and 76942 nonzeros Presolve time: 0.05s Presolved: 682 rows, 38502 columns, 76942 nonzeros Variable types: 38440 continuous, 62 integer (62 binary) Root relaxation: objective 6.992439e+04, 1470 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 69924.3922 0 8 - 69924.3922 - - 0s H 0 0 72147.000000 69924.3922 3.08% - 0s H 0 0 70405.000000 69924.3922 0.68% - 0s 0 0 70249.9410 0 5 70405.0000 70249.9410 0.22% - 0s 0 0 70274.3645 0 6 70405.0000 70274.3645 0.19% - 0s 0 0 70274.3645 0 8 70405.0000 70274.3645 0.19% - 0s 0 0 70274.3645 0 5 70405.0000 70274.3645 0.19% - 0s 0 0 70275.0151 0 6 70405.0000 70275.0151 0.18% - 0s 0 0 70276.5218 0 4 70405.0000 70276.5218 0.18% - 0s 0 0 70280.3453 0 6 70405.0000 70280.3453 0.18% - 0s 0 0 70280.4170 0 4 70405.0000 70280.4170 0.18% - 0s 0 0 70280.4583 0 4 70405.0000 70280.4583 0.18% - 0s 0 0 70281.3179 0 3 70405.0000 70281.3179 0.18% - 0s 0 2 70282.4438 0 3 70405.0000 70282.4438 0.17% - 1s H 6 2 70382.981818 70347.7622 0.05% 63.0 1s * 7 2 6 70360.000000 70347.7622 0.02% 55.3 1s Cutting planes: Implied bound: 109 Flow cover: 8 Explored 10 nodes (3770 simplex iterations) in 1.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.036000000000e+04, best bound 7.036000000000e+04, gap 0.0%