Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:14:04 2013 Optimize a model with 913 rows, 68973 columns and 137863 nonzeros Presolve time: 0.10s Presolved: 913 rows, 68973 columns, 137863 nonzeros Variable types: 68890 continuous, 83 integer (83 binary) Root relaxation: objective 9.960691e+04, 2631 iterations, 0.10 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 99606.9131 0 2 - 99606.9131 - - 0s H 0 0 102722.00000 99606.9131 3.03% - 0s 0 0 99708.5107 0 3 102722.000 99708.5107 2.93% - 0s 0 0 99737.5700 0 3 102722.000 99737.5700 2.91% - 0s 0 0 99740.9904 0 3 102722.000 99740.9904 2.90% - 0s 0 0 99743.1868 0 2 102722.000 99743.1868 2.90% - 0s H 0 0 100555.95312 99743.1868 0.81% - 0s H 0 0 100151.00000 99743.1868 0.41% - 0s H 0 0 100060.00000 99743.1868 0.32% - 1s 0 0 99743.1868 0 2 100060.000 99743.1868 0.32% - 1s 0 0 99743.1868 0 3 100060.000 99743.1868 0.32% - 1s 0 0 99743.1868 0 3 100060.000 99743.1868 0.32% - 1s 0 0 99743.1868 0 3 100060.000 99743.1868 0.32% - 1s 0 0 99743.1868 0 2 100060.000 99743.1868 0.32% - 1s 0 0 99743.1868 0 2 100060.000 99743.1868 0.32% - 1s 0 0 99764.1250 0 1 100060.000 99764.1250 0.30% - 1s 0 2 99766.1837 0 1 100060.000 99766.1837 0.29% - 1s H 4 2 100048.00000 99788.3000 0.26% 16.8 1s H 5 1 99972.000000 99866.2273 0.11% 15.4 1s H 6 1 99960.000000 99866.2273 0.09% 16.8 1s * 7 1 6 99918.000000 99866.2273 0.05% 17.7 1s Cutting planes: Implied bound: 29 Flow cover: 4 Explored 10 nodes (4379 simplex iterations) in 1.99 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.991800000000e+04, best bound 9.991800000000e+04, gap 0.0%