Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:40:05 2013 Optimize a model with 5160 rows, 11030 columns and 37050 nonzeros Presolve removed 10 rows and 10 columns Presolve time: 0.21s Presolved: 5150 rows, 11020 columns, 32040 nonzeros Variable types: 6020 continuous, 5000 integer (5000 binary) Root relaxation: objective 2.387367e+04, 299 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 23873.6700 0 2 - 23873.6700 - - 0s 0 0 23880.5842 0 2 - 23880.5842 - - 0s 0 0 23883.2225 0 2 - 23883.2225 - - 0s 0 0 23885.1854 0 2 - 23885.1854 - - 0s 0 0 23886.8005 0 2 - 23886.8005 - - 1s 0 0 23886.8313 0 5 - 23886.8313 - - 1s 0 0 23888.1942 0 2 - 23888.1942 - - 1s 0 0 23889.4314 0 2 - 23889.4314 - - 1s 0 0 23889.4650 0 6 - 23889.4650 - - 1s 0 0 23890.5504 0 2 - 23890.5504 - - 1s 0 0 23890.6209 0 8 - 23890.6209 - - 1s 0 0 23890.7588 0 2 - 23890.7588 - - 1s 0 0 23891.2449 0 6 - 23891.2449 - - 1s 0 0 23891.5764 0 2 - 23891.5764 - - 1s 0 0 23891.7899 0 3 - 23891.7899 - - 1s 0 0 23892.1550 0 4 - 23892.1550 - - 1s 0 0 23892.1847 0 3 - 23892.1847 - - 1s 0 0 23892.4895 0 3 - 23892.4895 - - 1s 0 0 23892.5265 0 2 - 23892.5265 - - 1s 0 0 23892.5308 0 2 - 23892.5308 - - 1s 0 0 23892.6206 0 7 - 23892.6206 - - 1s 0 0 23893.4134 0 2 - 23893.4134 - - 1s 0 0 23893.4346 0 10 - 23893.4346 - - 1s 0 0 23893.8913 0 2 - 23893.8913 - - 1s 0 0 23893.9140 0 11 - 23893.9140 - - 1s 0 0 23894.2465 0 2 - 23894.2465 - - 1s 0 0 23894.2986 0 13 - 23894.2986 - - 2s 0 0 23895.0333 0 2 - 23895.0333 - - 2s 0 0 23895.0333 0 2 - 23895.0333 - - 2s H 0 0 24453.611866 23895.0333 2.28% - 2s 0 2 23895.0333 0 2 24453.6119 23895.0333 2.28% - 2s * 17 5 9 23950.729782 23950.7296 0.00% 14.0 3s Cutting planes: Gomory: 1 Implied bound: 37 Flow cover: 4 Explored 18 nodes (1283 simplex iterations) in 3.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.395072978172e+04, best bound 2.395072956743e+04, gap 0.0000%