Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:53:55 2012 Optimize a model with 188 rows, 436 columns and 436 nonzeros Model has 374 quadratic constraints Presolve time: 2.18s Presolved: 188 rows, 436 columns, 436 nonzeros Variable types: 374 continuous, 62 integer (62 binary) Root relaxation: objective 0.000000e+00, 31 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 79.0000000 - - - 2s 0 0 0.00000 0 21 79.00000 0.00000 100% - 2s 0 0 0.00000 0 27 79.00000 0.00000 100% - 2s 0 0 0.00000 0 21 79.00000 0.00000 100% - 2s 0 2 0.00000 0 59 79.00000 0.00000 100% - 2s H 43 43 53.0000000 4.57341 91.4% 37.6 2s * 87 75 24 52.0000000 4.57627 91.2% 37.1 2s * 90 72 25 51.0000000 4.57627 91.0% 36.2 2s H 165 121 46.0000000 7.12903 84.5% 39.0 2s 1325 567 30.95238 37 262 46.00000 18.50000 59.8% 41.5 5s 5934 2160 43.90698 37 225 46.00000 30.47010 33.8% 23.8 10s 10822 3296 41.14286 32 246 46.00000 33.71429 26.7% 21.1 15s 15959 3967 39.12766 31 251 46.00000 35.84211 22.1% 19.7 20s 21205 4383 42.40816 40 251 46.00000 37.52564 18.4% 18.9 25s *25015 4045 42 45.0000000 38.61702 14.2% 18.4 28s 25358 3982 44.00000 34 247 45.00000 38.78571 13.8% 18.3 30s 25605 3953 42.25581 37 227 45.00000 38.90000 13.6% 18.3 36s 27861 3456 43.42553 37 234 45.00000 39.97872 11.2% 18.1 40s 32911 738 43.93023 35 240 45.00000 43.00000 4.44% 17.7 45s Explored 33706 nodes (588679 simplex iterations) in 45.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.500000000005e+01, best bound 4.500000000005e+01, gap 0.0%