Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:14:15 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 1.014104e+05, 2571 iterations, 0.09 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 101410.415 0 9 - 101410.415 - - 0s H 0 0 107348.00000 101410.415 5.53% - 0s H 0 0 103437.00000 101410.415 1.96% - 0s 0 0 102030.842 0 7 103437.000 102030.842 1.36% - 0s H 0 0 103248.00000 102030.842 1.18% - 0s 0 0 102043.085 0 4 103248.000 102043.085 1.17% - 0s H 0 0 102421.00000 102043.085 0.37% - 0s 0 0 102045.995 0 5 102421.000 102045.995 0.37% - 0s 0 0 102045.995 0 9 102421.000 102045.995 0.37% - 1s 0 0 102045.995 0 7 102421.000 102045.995 0.37% - 1s 0 0 102045.995 0 4 102421.000 102045.995 0.37% - 1s H 0 0 102370.00000 102045.995 0.32% - 1s 0 0 102045.995 0 5 102370.000 102045.995 0.32% - 1s 0 0 102052.775 0 4 102370.000 102052.775 0.31% - 1s 0 0 102053.179 0 5 102370.000 102053.179 0.31% - 1s 0 0 102054.089 0 4 102370.000 102054.089 0.31% - 1s 0 0 102054.932 0 5 102370.000 102054.932 0.31% - 1s 0 0 102055.505 0 4 102370.000 102055.505 0.31% - 1s 0 0 102055.676 0 5 102370.000 102055.676 0.31% - 1s 0 0 102055.862 0 4 102370.000 102055.862 0.31% - 2s H 0 0 102286.00000 102055.862 0.22% - 2s 0 2 102058.355 0 4 102286.000 102058.355 0.22% - 2s * 11 7 10 102237.00000 102094.771 0.14% 42.3 2s * 19 7 12 102211.00000 102129.971 0.08% 35.4 2s Cutting planes: Implied bound: 99 Flow cover: 17 Explored 25 nodes (5995 simplex iterations) in 2.75 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.022110000000e+05, best bound 1.022035000000e+05, gap 0.0073%