Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:20:39 2012 Optimize a model with 193 rows, 443 columns and 443 nonzeros Model has 384 quadratic constraints Presolve time: 2.24s Presolved: 193 rows, 443 columns, 443 nonzeros Variable types: 384 continuous, 59 integer (59 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 0 108.0000000 - - - 2s 0 0 0.00000 0 25 108.00000 0.00000 100% - 2s 0 0 0.00000 0 32 108.00000 0.00000 100% - 2s 0 0 0.00000 0 32 108.00000 0.00000 100% - 2s 0 2 0.00000 0 30 108.00000 0.00000 100% - 2s H 44 44 67.0000000 3.88073 94.2% 34.4 2s * 57 54 37 64.0000000 3.88073 93.9% 28.9 2s H 96 72 56.0000000 6.49412 88.4% 34.0 2s * 273 212 22 55.0000000 10.27000 81.3% 39.3 2s * 276 200 20 54.0000000 10.27000 81.0% 39.0 2s * 841 432 61 52.0000000 17.75869 65.8% 47.0 4s * 960 452 66 51.0000000 17.75869 65.2% 45.9 4s 1015 486 47.06383 59 251 51.00000 17.75869 65.2% 46.0 5s H 2897 1073 49.0000000 23.50000 52.0% 32.0 7s H 2981 1054 48.0000000 23.83789 50.3% 32.0 8s 3521 1177 40.20000 42 261 48.00000 25.44000 47.0% 31.0 10s 6395 1775 33.60377 44 262 48.00000 30.46341 36.5% 27.7 15s 8203 2034 42.42857 48 258 48.00000 32.50000 32.3% 26.7 20s 9991 2143 46.00000 40 258 48.00000 33.94606 29.3% 26.0 25s 12798 2162 45.76356 41 264 48.00000 36.10000 24.8% 25.6 30s *13355 2070 51 47.0000000 36.40797 22.5% 25.4 30s 15621 1878 45.16327 47 268 47.00000 37.90909 19.3% 25.0 35s 18778 1354 45.50000 40 256 47.00000 40.25000 14.4% 24.5 40s Explored 21445 nodes (509785 simplex iterations) in 43.39 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.700000000000e+01, best bound 4.700000000000e+01, gap 0.0%