Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:35:41 2012 Optimize a model with 203 rows, 464 columns and 464 nonzeros Model has 404 quadratic constraints Presolve time: 2.35s Presolved: 203 rows, 464 columns, 464 nonzeros Variable types: 404 continuous, 60 integer (60 binary) Root relaxation: objective 0.000000e+00, 30 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 92.0000000 - - - 2s 0 0 0.00000 0 36 92.00000 0.00000 100% - 2s 0 0 0.16052 0 59 92.00000 0.16052 100% - 2s 0 2 0.23039 0 59 92.00000 0.23039 100% - 2s H 54 54 86.0000000 5.71429 93.4% 30.6 2s * 61 61 33 60.0000000 5.71429 90.5% 29.3 2s * 65 61 35 59.0000000 5.71429 90.3% 28.1 2s * 181 144 23 58.0000000 6.85185 88.2% 33.5 2s * 238 191 27 56.0000000 7.22449 87.1% 34.4 2s H 295 233 54.0000000 7.36073 86.4% 37.1 2s * 319 231 19 52.0000000 9.33179 82.1% 36.5 2s 990 521 39.50000 48 250 52.00000 17.97924 65.4% 49.0 5s 4750 1849 cutoff 38 52.00000 30.64460 41.1% 28.9 10s 8907 3137 38.26000 30 275 52.00000 34.46171 33.7% 24.9 15s 13235 4152 cutoff 37 52.00000 36.57143 29.7% 23.1 20s 17693 4894 40.51468 36 277 52.00000 38.22222 26.5% 22.1 25s 22240 5485 46.63265 39 264 52.00000 39.42500 24.2% 21.4 30s 26850 5835 51.47368 41 233 52.00000 40.66667 21.8% 20.9 35s 31462 6092 51.37327 45 246 52.00000 41.65928 19.9% 20.6 40s 36231 6260 51.12079 42 262 52.00000 42.55163 18.2% 20.3 45s 41074 6260 49.05612 45 232 52.00000 43.33449 16.7% 20.0 50s 42501 6225 cutoff 40 52.00000 43.58333 16.2% 19.9 59s 42607 6224 51.41159 37 254 52.00000 43.60000 16.2% 19.9 60s 47578 6087 51.76934 45 271 52.00000 44.38538 14.6% 19.7 65s 52671 5779 51.87805 46 233 52.00000 45.00000 13.5% 19.4 70s 57858 5266 48.95946 42 242 52.00000 45.74059 12.0% 19.2 75s 63606 4483 50.63415 34 259 52.00000 46.48457 10.6% 19.0 80s 69812 3251 cutoff 39 52.00000 47.47178 8.71% 18.7 85s 76291 1030 cutoff 41 52.00000 49.50000 4.81% 18.4 90s Explored 78014 nodes (1422452 simplex iterations) in 90.96 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.200000000005e+01, best bound 5.200000000005e+01, gap 0.0%