Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:50:38 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 1.055678e+05, 2369 iterations, 0.07 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 105567.848 0 16 - 105567.848 - - 0s H 0 0 115372.00000 105567.848 8.50% - 0s 0 0 105919.352 0 6 115372.000 105919.352 8.19% - 0s H 0 0 114723.00000 105919.352 7.67% - 0s H 0 0 107020.00000 105919.352 1.03% - 0s 0 0 105946.541 0 9 107020.000 105946.541 1.00% - 0s 0 0 105963.495 0 8 107020.000 105963.495 0.99% - 0s 0 0 105967.533 0 7 107020.000 105967.533 0.98% - 0s 0 0 105967.999 0 8 107020.000 105967.999 0.98% - 1s 0 0 105968.096 0 8 107020.000 105968.096 0.98% - 1s 0 0 105968.099 0 7 107020.000 105968.099 0.98% - 1s 0 0 105968.099 0 7 107020.000 105968.099 0.98% - 1s 0 0 105968.099 0 16 107020.000 105968.099 0.98% - 1s 0 0 105968.099 0 6 107020.000 105968.099 0.98% - 2s 0 0 105968.099 0 9 107020.000 105968.099 0.98% - 2s 0 0 105968.099 0 8 107020.000 105968.099 0.98% - 2s 0 0 105968.099 0 7 107020.000 105968.099 0.98% - 2s 0 0 105968.099 0 7 107020.000 105968.099 0.98% - 2s 0 0 105968.099 0 7 107020.000 105968.099 0.98% - 2s 0 2 105988.332 0 7 107020.000 105988.332 0.96% - 3s H 15 12 106533.22500 106072.315 0.43% 40.5 3s H 23 11 106270.00000 106072.315 0.19% 33.4 3s * 26 8 22 106261.00000 106072.315 0.18% 30.5 3s * 65 4 7 106203.00000 106177.873 0.02% 37.5 4s Cutting planes: Implied bound: 248 Flow cover: 13 Explored 69 nodes (8073 simplex iterations) in 4.30 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.062030000000e+05, best bound 1.062030000000e+05, gap 0.0%