Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:50:16 2013 Optimize a model with 891 rows, 65691 columns and 131301 nonzeros Presolve time: 0.10s Presolved: 891 rows, 65691 columns, 131301 nonzeros Variable types: 65610 continuous, 81 integer (81 binary) Root relaxation: objective 9.363118e+04, 2279 iterations, 0.08 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 93631.1763 0 3 - 93631.1763 - - 0s H 0 0 96737.000000 93631.1763 3.21% - 0s 0 0 93722.6933 0 3 96737.0000 93722.6933 3.12% - 0s 0 0 93741.8614 0 3 96737.0000 93741.8614 3.10% - 0s 0 0 93747.1947 0 3 96737.0000 93747.1947 3.09% - 0s 0 0 93750.0115 0 4 96737.0000 93750.0115 3.09% - 0s 0 0 93750.0985 0 4 96737.0000 93750.0985 3.09% - 0s 0 0 93750.1920 0 4 96737.0000 93750.1920 3.09% - 0s 0 0 93750.9398 0 3 96737.0000 93750.9398 3.09% - 1s H 0 0 96032.238095 93750.9398 2.38% - 1s H 0 0 95837.000000 93750.9398 2.18% - 1s 0 0 93750.9398 0 3 95837.0000 93750.9398 2.18% - 1s 0 0 93750.9398 0 3 95837.0000 93750.9398 2.18% - 1s 0 0 93750.9398 0 3 95837.0000 93750.9398 2.18% - 1s 0 0 93750.9398 0 3 95837.0000 93750.9398 2.18% - 1s 0 2 93755.8295 0 3 95837.0000 93755.8295 2.17% - 1s H 2 2 94329.809524 93790.5639 0.57% 59.5 1s H 4 4 93861.823529 93791.1930 0.08% 48.8 1s * 8 1 7 93853.000000 93822.3083 0.03% 37.0 2s Cutting planes: Implied bound: 47 Flow cover: 1 Explored 11 nodes (2896 simplex iterations) in 2.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.385300000000e+04, best bound 9.384552714932e+04, gap 0.0080%