Gurobi 5.0.1 (linux64) logging started Wed Apr 24 12:09:14 2013 Optimize a model with 1650 rows, 225150 columns and 450150 nonzeros Presolve time: 0.53s Presolved: 1650 rows, 225150 columns, 450150 nonzeros Variable types: 225000 continuous, 150 integer (150 binary) Root relaxation: objective 2.584312e+05, 7122 iterations, 0.47 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 258431.212 0 10 - 258431.212 - - 1s H 0 0 293363.00000 258431.212 11.9% - 2s H 0 0 260925.00000 258431.212 0.96% - 2s 0 0 259186.299 0 8 260925.000 259186.299 0.67% - 3s 0 0 259186.299 0 10 260925.000 259186.299 0.67% - 4s 0 0 259186.299 0 8 260925.000 259186.299 0.67% - 5s 0 0 259293.107 0 8 260925.000 259293.107 0.63% - 5s 0 0 259322.654 0 8 260925.000 259322.654 0.61% - 5s 0 0 259331.644 0 8 260925.000 259331.644 0.61% - 6s 0 0 259338.296 0 7 260925.000 259338.296 0.61% - 6s 0 0 259338.309 0 7 260925.000 259338.309 0.61% - 6s 0 0 259341.532 0 7 260925.000 259341.532 0.61% - 7s 0 0 259341.639 0 7 260925.000 259341.639 0.61% - 7s 0 0 259341.639 0 7 260925.000 259341.639 0.61% - 7s 0 2 259358.370 0 7 260925.000 259358.370 0.60% - 9s 4 6 259615.044 3 7 260925.000 259552.865 0.53% 261 10s H 22 18 260593.00000 259664.879 0.36% 174 12s * 30 19 23 260568.00000 259664.879 0.35% 134 12s H 38 18 260202.00000 259667.114 0.21% 121 13s * 49 20 22 259972.00000 259667.114 0.12% 100 13s 66 16 259916.900 10 1 259972.000 259749.952 0.09% 107 15s * 112 0 20 259933.00000 259933.000 0.0% 97.3 17s Cutting planes: Implied bound: 324 Flow cover: 10 Explored 113 nodes (25889 simplex iterations) in 18.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.599330000000e+05, best bound 2.599330000000e+05, gap 0.0%