Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:43:35 2013 Optimize a model with 5700 rows, 30100 columns and 70050 nonzeros Presolve removed 150 rows and 100 columns Presolve time: 0.40s Presolved: 5550 rows, 30000 columns, 64900 nonzeros Variable types: 27550 continuous, 2450 integer (2450 binary) Root relaxation: objective 1.824192e+05, 6296 iterations, 0.42 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 182419.206 0 1 - 182419.206 - - 0s 0 0 182701.496 0 1 - 182701.496 - - 1s H 0 0 182985.29876 182701.496 0.16% - 1s 0 0 182742.312 0 1 182985.299 182742.312 0.13% - 1s 0 0 182742.312 0 1 182985.299 182742.312 0.13% - 1s 0 0 182742.312 0 1 182985.299 182742.312 0.13% - 1s 0 0 182742.312 0 1 182985.299 182742.312 0.13% - 1s 0 0 182742.312 0 1 182985.299 182742.312 0.13% - 2s 0 0 182742.312 0 1 182985.299 182742.312 0.13% - 2s H 0 0 182973.33663 182742.312 0.13% - 2s H 0 0 182952.50947 182742.312 0.11% - 2s 0 0 182742.312 0 1 182952.509 182742.312 0.11% - 2s 0 0 182742.312 0 1 182952.509 182742.312 0.11% - 2s 0 2 182765.000 0 1 182952.509 182765.000 0.10% - 2s H 10 10 182937.61643 182808.933 0.07% 9.1 2s H 12 10 182933.47127 182808.933 0.07% 9.3 2s H 13 9 182902.85200 182808.933 0.05% 9.8 2s H 15 8 182902.38206 182808.933 0.05% 8.7 3s * 19 8 13 182898.95023 182808.933 0.05% 8.3 3s * 50 15 16 182884.12886 182843.861 0.02% 9.7 3s * 61 12 15 182879.22514 182843.896 0.02% 9.3 3s Cutting planes: Gomory: 2 Flow cover: 2 Explored 74 nodes (9711 simplex iterations) in 3.63 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.828792251419e+05, best bound 1.828610990138e+05, gap 0.0099%