Gurobi 5.0.1 (linux64) logging started Sat Nov 17 22:12:10 2012 Optimize a model with 250 rows, 530 columns and 530 nonzeros Model has 498 quadratic constraints Presolve time: 2.90s Presolved: 250 rows, 530 columns, 530 nonzeros Variable types: 498 continuous, 32 integer (32 binary) Root relaxation: objective 0.000000e+00, 16 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 129.0000000 - - - 2s 0 0 0.00000 0 28 129.00000 0.00000 100% - 2s 0 0 0.66667 0 32 129.00000 0.66667 99.5% - 2s 0 0 0.66667 0 32 129.00000 0.66667 99.5% - 2s 0 2 0.66667 0 32 129.00000 0.66667 99.5% - 2s H 47 47 109.0000000 7.82456 92.8% 49.1 3s * 89 76 22 101.0000000 8.00000 92.1% 48.4 3s * 91 76 23 100.0000000 8.00000 92.0% 47.4 3s * 93 74 22 99.0000000 8.00000 91.9% 46.4 3s 606 393 32.16667 10 489 99.00000 32.16667 67.5% 56.5 5s 2769 1190 76.78337 39 318 99.00000 35.81250 63.8% 42.6 10s 5890 2667 73.95455 28 309 99.00000 48.39222 51.1% 35.8 15s 9246 3866 91.88889 33 290 99.00000 56.00000 43.4% 32.9 20s 12727 4837 60.35714 29 316 99.00000 60.00000 39.4% 31.3 25s 16299 5760 96.50000 39 278 99.00000 63.25000 36.1% 30.3 30s 19858 6569 67.00000 33 303 99.00000 66.00000 33.3% 29.6 35s 23474 7258 cutoff 50 99.00000 68.64286 30.7% 29.1 40s *26759 7541 40 97.0000000 70.35227 27.5% 28.7 44s 26907 7543 83.00000 31 295 97.00000 70.42857 27.4% 28.7 45s H26909 7390 96.0000000 70.42857 26.6% 28.7 49s 27014 7392 88.40000 27 307 96.00000 70.50000 26.6% 28.7 50s H27208 7169 95.0000000 70.59091 25.7% 28.6 55s 29215 7225 cutoff 37 95.00000 71.83333 24.4% 28.6 60s 32597 7347 93.30000 33 330 95.00000 73.80000 22.3% 28.4 65s 36019 7366 92.31579 29 312 95.00000 75.50000 20.5% 28.2 70s 39395 7277 93.50000 39 273 95.00000 77.14286 18.8% 28.1 75s 42107 7138 91.50000 34 277 95.00000 78.30000 17.6% 28.0 89s 42322 7134 92.42105 38 313 95.00000 78.37500 17.5% 27.9 90s 45838 6832 89.55000 34 300 95.00000 79.75000 16.1% 27.8 95s 48682 6528 cutoff 31 95.00000 80.78947 15.0% 27.6 100s 52361 6079 cutoff 36 95.00000 82.05124 13.6% 27.4 105s 56143 5513 90.62500 37 319 95.00000 83.42105 12.2% 27.1 110s 59664 4744 cutoff 31 95.00000 84.96429 10.6% 26.9 115s 63797 3461 90.88889 31 277 95.00000 87.00000 8.42% 26.6 120s Explored 68965 nodes (1789868 simplex iterations) in 124.77 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.500000000062e+01, best bound 9.500000000062e+01, gap 0.0%