Gurobi 5.0.1 (linux64) logging started Tue Dec 11 04:06:30 2012 Optimize a model with 11910 rows, 11880 columns and 45310 nonzeros Presolve removed 757 rows and 115 columns Presolve time: 0.07s Presolved: 11153 rows, 11765 columns, 43787 nonzeros Variable types: 11067 continuous, 698 integer (698 binary) Root relaxation: objective 2.472197e+05, 1112 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 247219.692 0 27 - 247219.692 - - 0s 0 0 247497.226 0 36 - 247497.226 - - 0s 0 0 247717.154 0 42 - 247717.154 - - 0s 0 0 247744.343 0 48 - 247744.343 - - 0s 0 0 247770.079 0 48 - 247770.079 - - 0s 0 0 247843.729 0 49 - 247843.729 - - 0s 0 0 247848.720 0 48 - 247848.720 - - 0s H 0 0 248928.00000 247848.720 0.43% - 0s 0 2 247883.987 0 48 248928.000 247883.987 0.42% - 0s H 324 194 248790.00000 248004.412 0.32% 5.0 1s * 357 193 70 248756.00000 248004.412 0.30% 5.0 1s H 550 300 248712.00000 248019.992 0.28% 5.1 2s * 566 301 40 248707.00000 248019.992 0.28% 5.1 2s H 700 204 248323.00000 248025.748 0.12% 5.0 2s 720 215 248025.748 12 57 248323.000 248025.748 0.12% 6.4 5s H 900 229 248247.00000 248053.437 0.08% 6.8 6s * 1417 338 64 248245.00000 248089.176 0.06% 6.9 8s 2157 626 248232.300 53 18 248245.000 248119.071 0.05% 6.5 10s * 2218 580 54 248228.00000 248119.930 0.04% 6.5 10s * 2647 654 59 248216.00000 248126.686 0.04% 6.2 10s 4687 808 248203.734 39 32 248216.000 248164.244 0.02% 5.7 15s Cutting planes: Gomory: 9 Cover: 1 Flow cover: 27 Explored 6136 nodes (34739 simplex iterations) in 18.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.482160000000e+05, best bound 2.481911796370e+05, gap 0.0100%