Gurobi 5.0.1 (linux64) logging started Fri Dec 21 23:28:34 2012 Optimize a model with 10202 rows, 10201 columns and 45794 nonzeros Presolve removed 9320 rows and 5866 columns Presolve time: 0.08s Presolved: 882 rows, 4335 columns, 10750 nonzeros Variable types: 92 continuous, 4243 integer (4243 binary) Root relaxation: objective 7.398118e+02, 416 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 739.81179 0 107 - 739.81179 - - 0s 0 0 759.74305 0 113 - 759.74305 - - 0s 0 0 761.10667 0 102 - 761.10667 - - 0s 0 0 762.10667 0 93 - 762.10667 - - 0s 0 0 762.39238 0 116 - 762.39238 - - 0s 0 0 762.75429 0 125 - 762.75429 - - 0s 0 0 763.39238 0 123 - 763.39238 - - 0s 0 0 763.94623 0 130 - 763.94623 - - 0s 0 0 764.25905 0 130 - 764.25905 - - 0s 0 0 764.28127 0 131 - 764.28127 - - 0s 0 0 764.28127 0 118 - 764.28127 - - 0s 0 2 764.41460 0 118 - 764.41460 - - 0s 614 394 780.89721 14 108 - 780.89721 - 14.0 5s 632 407 794.01350 33 81 - 782.03976 - 18.0 10s H 910 486 799.0000000 783.73234 1.91% 18.2 13s 1010 518 797.56549 48 88 799.00000 783.73234 1.91% 19.5 15s 3395 283 796.25093 56 86 799.00000 792.42328 0.82% 20.2 20s Cutting planes: Learned: 5 Gomory: 65 Cover: 106 Implied bound: 103 Clique: 15 MIR: 98 GUB cover: 10 Zero half: 35 Explored 4469 nodes (87218 simplex iterations) in 21.31 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.990000000000e+02, best bound 7.990000000000e+02, gap 0.0%