Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:17:11 2013 Optimize a model with 800 rows, 25400 columns and 50850 nonzeros Presolve removed 100 rows and 150 columns Presolve time: 0.19s Presolved: 700 rows, 25250 columns, 50500 nonzeros Variable types: 25200 continuous, 50 integer (50 binary) Root relaxation: objective 1.959342e+05, 2281 iterations, 0.12 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 195934.242 0 3 - 195934.242 - - 0s H 0 0 205356.99111 195934.242 4.59% - 0s 0 0 196097.845 0 3 205356.991 196097.845 4.51% - 0s 0 0 196124.588 0 3 205356.991 196124.588 4.50% - 0s 0 0 196127.206 0 4 205356.991 196127.206 4.49% - 0s H 0 0 198981.78023 196127.206 1.43% - 0s 0 0 196127.206 0 4 198981.780 196127.206 1.43% - 0s 0 0 196132.972 0 3 198981.780 196132.972 1.43% - 0s 0 0 196133.288 0 3 198981.780 196133.288 1.43% - 0s 0 0 196136.739 0 3 198981.780 196136.739 1.43% - 1s 0 0 196138.524 0 3 198981.780 196138.524 1.43% - 1s 0 0 196140.967 0 3 198981.780 196140.967 1.43% - 1s 0 0 196142.354 0 3 198981.780 196142.354 1.43% - 1s 0 0 196143.633 0 3 198981.780 196143.633 1.43% - 1s 0 0 196143.633 0 3 198981.780 196143.633 1.43% - 1s 0 0 196143.663 0 3 198981.780 196143.663 1.43% - 1s 0 0 196143.663 0 3 198981.780 196143.663 1.43% - 1s 0 2 196145.500 0 3 198981.780 196145.500 1.43% - 1s * 11 5 10 196570.65000 196434.722 0.07% 55.2 2s * 17 2 6 196555.34079 196468.129 0.04% 42.6 2s Cutting planes: Flow cover: 23 Explored 20 nodes (3573 simplex iterations) in 2.35 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.965553407861e+05, best bound 1.965553407861e+05, gap 0.0%