Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:14:44 2012 Optimize a model with 189 rows, 434 columns and 434 nonzeros Model has 376 quadratic constraints Presolve time: 2.19s Presolved: 189 rows, 434 columns, 434 nonzeros Variable types: 376 continuous, 58 integer (58 binary) Root relaxation: objective 0.000000e+00, 29 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 112.0000000 - - - 2s 0 0 0.00000 0 36 112.00000 0.00000 100% - 2s 0 0 0.18031 0 57 112.00000 0.18031 100% - 2s 0 2 0.19444 0 57 112.00000 0.19444 100% - 2s H 48 48 66.0000000 5.97826 90.9% 36.1 2s * 64 64 35 60.0000000 5.97826 90.0% 31.3 2s H 105 95 58.0000000 6.41818 88.9% 33.1 2s H 341 246 51.0000000 9.31250 81.7% 39.0 2s 1205 619 40.55746 32 248 51.00000 15.10156 70.4% 42.8 5s 5346 2727 49.99682 44 243 51.00000 24.61905 51.7% 26.5 10s 9677 4600 40.95245 33 253 51.00000 28.41379 44.3% 23.7 15s 14123 6248 46.26289 40 253 51.00000 30.41898 40.4% 22.5 20s 18687 7799 50.41304 55 250 51.00000 31.92987 37.4% 21.7 25s *20143 7927 47 50.0000000 32.35294 35.3% 21.5 26s H20268 7682 49.0000000 32.41379 33.8% 21.5 28s H20338 6591 47.0000000 32.42857 31.0% 21.5 29s 20423 6604 44.94872 40 255 47.00000 32.42971 31.0% 21.5 30s 20589 6632 44.02884 49 248 47.00000 32.48726 30.9% 21.5 35s 21484 6764 43.63826 47 260 47.00000 32.73684 30.3% 21.4 40s 24258 7092 42.39576 40 252 47.00000 33.49081 28.7% 21.1 45s 27939 7403 cutoff 43 47.00000 34.50000 26.6% 20.9 50s 32252 7686 45.53333 43 254 47.00000 35.55000 24.4% 20.6 55s 36023 7690 cutoff 34 47.00000 36.45455 22.4% 20.4 60s 40382 7539 45.47619 32 256 47.00000 37.34483 20.5% 20.3 65s 44585 7261 41.88826 36 252 47.00000 38.20000 18.7% 20.2 70s 48485 6769 cutoff 33 47.00000 39.05405 16.9% 20.2 75s 52842 6027 cutoff 44 47.00000 40.04348 14.8% 20.1 80s 56478 5055 cutoff 50 47.00000 41.00000 12.8% 20.0 85s 60935 3176 43.29787 42 246 47.00000 42.50000 9.57% 19.9 90s Explored 65796 nodes (1278663 simplex iterations) in 94.98 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.700000000005e+01, best bound 4.700000000005e+01, gap 0.0%