Gurobi 5.0.1 (linux64) logging started Sat Nov 17 21:48:01 2012 Optimize a model with 220 rows, 469 columns and 469 nonzeros Model has 438 quadratic constraints Presolve time: 2.56s Presolved: 220 rows, 469 columns, 469 nonzeros Variable types: 438 continuous, 31 integer (31 binary) Root relaxation: objective 0.000000e+00, 15 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 116.0000000 - - - 2s 0 0 0.00000 0 2 116.00000 0.00000 100% - 2s 0 0 0.00000 0 31 116.00000 0.00000 100% - 2s 0 0 0.00000 0 30 116.00000 0.00000 100% - 2s 0 2 0.00000 0 30 116.00000 0.00000 100% - 2s * 42 42 22 98.0000000 5.90909 94.0% 49.2 2s H 78 70 92.0000000 6.22222 93.2% 45.6 2s H 121 100 91.0000000 17.13333 81.2% 42.0 2s 694 414 65.65181 34 249 91.00000 31.25000 65.7% 55.3 5s * 3310 1402 45 90.0000000 37.37500 58.5% 35.6 8s 4163 1764 50.58333 31 292 90.00000 40.20868 55.3% 33.9 10s * 4253 1788 55 89.0000000 40.52000 54.5% 33.8 10s H 4507 1860 88.0000000 41.86957 52.4% 33.4 10s H 4757 1906 87.0000000 43.00000 50.6% 33.3 10s 6101 2349 63.40000 47 271 87.00000 46.27273 46.8% 31.7 15s 9235 3164 68.94118 41 265 87.00000 52.89286 39.2% 30.0 20s 13008 3874 79.58824 35 252 87.00000 57.82128 33.5% 28.9 25s 16920 4489 85.00000 44 237 87.00000 61.14286 29.7% 28.0 30s 20793 4948 83.94737 53 257 87.00000 63.84958 26.6% 27.3 35s 24428 5349 80.94444 40 259 87.00000 65.87333 24.3% 26.7 40s 28727 5655 cutoff 54 87.00000 67.91111 21.9% 26.1 45s 32796 5759 79.63158 57 240 87.00000 69.66667 19.9% 25.7 50s 37123 5741 84.05556 37 264 87.00000 71.20000 18.2% 25.3 55s *38618 5567 44 86.0000000 71.71681 16.6% 25.2 56s 38649 5562 81.00000 37 243 86.00000 71.74080 16.6% 25.2 60s 42618 5215 cutoff 47 86.00000 73.08185 15.0% 25.0 65s 47038 4542 82.74105 48 253 86.00000 75.00000 12.8% 24.8 70s 50980 3686 83.10000 37 293 86.00000 76.60480 10.9% 24.6 75s 55751 1946 cutoff 45 86.00000 79.50298 7.55% 24.2 80s Explored 58565 nodes (1392258 simplex iterations) in 81.96 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.600000000054e+01, best bound 8.600000000054e+01, gap 0.0%