Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:28:08 2013 Optimize a model with 2580 rows, 5265 columns and 18025 nonzeros Presolve removed 5 rows and 5 columns Presolve time: 0.13s Presolved: 2575 rows, 5260 columns, 15520 nonzeros Variable types: 2760 continuous, 2500 integer (2500 binary) Root relaxation: objective 1.174557e+04, 49 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 11745.5748 0 2 - 11745.5748 - - 0s 0 0 11748.5893 0 2 - 11748.5893 - - 0s 0 0 11749.7388 0 2 - 11749.7388 - - 0s 0 0 11750.5941 0 2 - 11750.5941 - - 0s 0 0 11751.2978 0 2 - 11751.2978 - - 0s 0 0 11751.9051 0 2 - 11751.9051 - - 0s 0 0 11751.9980 0 6 - 11751.9980 - - 0s 0 0 11752.4441 0 2 - 11752.4441 - - 0s 0 0 11752.9095 0 5 - 11752.9095 - - 0s 0 0 11752.9317 0 2 - 11752.9317 - - 0s 0 0 11753.3787 0 2 - 11753.3787 - - 0s 0 0 11753.5254 0 5 - 11753.5254 - - 0s 0 0 11753.7927 0 2 - 11753.7927 - - 0s 0 0 11754.0369 0 7 - 11754.0369 - - 0s 0 0 11754.1791 0 2 - 11754.1791 - - 0s 0 0 11754.2344 0 10 - 11754.2344 - - 0s 0 0 11754.5422 0 2 - 11754.5422 - - 0s 0 0 11754.7687 0 5 - 11754.7687 - - 0s 0 0 11754.8849 0 2 - 11754.8849 - - 0s 0 0 11755.2101 0 2 - 11755.2101 - - 0s 0 0 11755.3145 0 8 - 11755.3145 - - 0s 0 0 11755.5109 0 7 - 11755.5109 - - 0s 0 0 11755.5196 0 2 - 11755.5196 - - 0s 0 0 11755.6084 0 14 - 11755.6084 - - 1s 0 0 11755.8152 0 2 - 11755.8152 - - 1s 0 0 11755.8651 0 6 - 11755.8651 - - 1s 0 0 11756.0650 0 12 - 11756.0650 - - 1s 0 0 11756.0983 0 2 - 11756.0983 - - 1s 0 0 11756.1188 0 17 - 11756.1188 - - 1s 0 0 11756.2452 0 2 - 11756.2452 - - 1s 0 0 11756.3652 0 18 - 11756.3652 - - 1s 0 0 11756.3701 0 2 - 11756.3701 - - 1s 0 0 11756.3970 0 19 - 11756.3970 - - 1s 0 0 11756.6316 0 2 - 11756.6316 - - 1s 0 0 11756.6610 0 10 - 11756.6610 - - 1s 0 0 11756.7583 0 11 - 11756.7583 - - 1s 0 0 11756.8837 0 2 - 11756.8837 - - 1s 0 0 11756.8874 0 21 - 11756.8874 - - 1s 0 0 11757.1062 0 21 - 11757.1062 - - 1s 0 0 11757.1174 0 21 - 11757.1174 - - 1s 0 0 11757.1174 0 21 - 11757.1174 - - 1s H 0 0 12014.510905 11757.1174 2.14% - 2s 0 2 11757.1271 0 2 12014.5109 11757.1271 2.14% - 2s * 20 0 10 11779.404659 11779.4047 0.0% 54.1 2s Cutting planes: Implied bound: 34 Flow cover: 8 Explored 21 nodes (1455 simplex iterations) in 2.53 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.177940465921e+04, best bound 1.177940465921e+04, gap 0.0%