Gurobi 5.0.1 (linux64) logging started Tue Dec 25 15:30:38 2012 Optimize a model with 482 rows, 441 columns and 2843 nonzeros Presolve removed 31 rows and 59 columns Presolve time: 0.02s Presolved: 451 rows, 382 columns, 4402 nonzeros Variable types: 20 continuous, 362 integer (362 binary) Root relaxation: objective 1.747931e+02, 108 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 174.79313 0 43 - 174.79313 - - 0s H 0 0 319.0000000 174.79313 45.2% - 0s 0 0 178.24873 0 37 319.00000 178.24873 44.1% - 0s 0 0 179.44950 0 34 319.00000 179.44950 43.7% - 0s 0 0 179.59173 0 35 319.00000 179.59173 43.7% - 0s 0 0 179.59173 0 35 319.00000 179.59173 43.7% - 0s 0 0 179.59173 0 35 319.00000 179.59173 43.7% - 0s H 0 0 314.0000000 179.59173 42.8% - 0s 0 2 180.25839 0 35 314.00000 180.25839 42.6% - 0s H 27 27 259.0000000 181.75839 29.8% 10.4 0s H 54 40 249.0000000 182.06065 26.9% 9.4 0s H 136 95 228.0000000 182.25839 20.1% 9.1 0s H 406 240 225.0000000 186.17074 17.3% 8.3 0s * 501 237 11 212.0000000 186.48902 12.0% 8.4 0s H 660 277 210.0000000 192.01055 8.57% 9.9 1s H 660 259 209.0000000 192.01055 8.13% 9.9 1s * 904 226 28 207.0000000 195.00000 5.80% 10.7 1s H 993 188 205.0000000 195.25042 4.76% 11.0 1s * 1043 142 29 202.0000000 196.00000 2.97% 11.0 1s * 1082 85 26 201.0000000 197.25017 1.87% 11.1 1s Cutting planes: Learned: 1 Gomory: 17 Cover: 13 Implied bound: 2 Clique: 7 MIR: 33 GUB cover: 10 Zero half: 8 Explored 1124 nodes (12470 simplex iterations) in 1.56 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.010000000000e+02, best bound 2.010000000000e+02, gap 0.0%