Gurobi 5.0.1 (linux64) logging started Tue Dec 25 15:32:01 2012 Optimize a model with 482 rows, 441 columns and 2877 nonzeros Presolve removed 22 rows and 48 columns Presolve time: 0.02s Presolved: 460 rows, 393 columns, 4438 nonzeros Variable types: 20 continuous, 373 integer (373 binary) Root relaxation: objective 1.857475e+02, 121 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 185.74754 0 49 - 185.74754 - - 0s 0 0 198.06329 0 41 - 198.06329 - - 0s 0 0 198.56899 0 51 - 198.56899 - - 0s 0 0 198.78635 0 51 - 198.78635 - - 0s 0 0 199.57763 0 53 - 199.57763 - - 0s 0 0 199.57763 0 53 - 199.57763 - - 0s 0 0 199.58030 0 53 - 199.58030 - - 0s 0 2 199.81446 0 53 - 199.81446 - - 0s * 326 231 45 315.0000000 201.62176 36.0% 13.7 0s H 381 259 306.0000000 202.00000 34.0% 13.3 0s H 516 293 279.0000000 203.00000 27.2% 12.2 0s * 538 266 8 264.0000000 203.00000 23.1% 12.1 0s H 826 381 242.0000000 208.34869 13.9% 15.3 1s H 1092 332 237.0000000 214.02911 9.69% 16.2 2s * 1922 339 42 235.0000000 220.08317 6.35% 14.4 2s H 2200 366 234.0000000 221.00000 5.56% 13.9 2s 3560 320 cutoff 30 234.00000 221.19339 5.47% 13.7 5s H 3686 355 233.0000000 221.46563 4.95% 13.5 5s Cutting planes: Gomory: 4 Cover: 3 MIR: 4 GUB cover: 3 Zero half: 13 Explored 5970 nodes (69120 simplex iterations) in 6.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.330000000000e+02, best bound 2.330000000000e+02, gap 0.0%