Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:44:58 2012 Optimize a model with 200 rows, 459 columns and 459 nonzeros Model has 398 quadratic constraints Presolve time: 2.32s Presolved: 200 rows, 459 columns, 459 nonzeros Variable types: 398 continuous, 61 integer (61 binary) Root relaxation: objective 0.000000e+00, 30 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 101.0000000 - - - 2s 0 0 0.00000 0 23 101.00000 0.00000 100% - 2s 0 0 0.00000 0 32 101.00000 0.00000 100% - 2s 0 0 0.00000 0 32 101.00000 0.00000 100% - 2s 0 2 0.00000 0 32 101.00000 0.00000 100% - 2s H 44 44 64.0000000 5.00000 92.2% 32.2 2s * 80 62 23 55.0000000 5.00000 90.9% 33.2 2s 1050 605 32.47170 34 279 55.00000 19.13042 65.2% 41.2 5s 5230 2605 48.90221 41 244 55.00000 28.57500 48.0% 24.3 10s H 5506 2559 53.0000000 28.83333 45.6% 24.0 10s H 7510 3283 52.0000000 31.61111 39.2% 22.5 12s 7787 3366 46.52000 42 277 52.00000 31.89474 38.7% 22.4 15s 8680 3641 38.03053 35 254 52.00000 32.73182 37.1% 22.0 20s 11764 4488 cutoff 41 52.00000 34.76295 33.1% 21.2 25s 14977 5343 50.25641 36 251 52.00000 36.26818 30.3% 20.4 30s 19326 6304 48.59757 35 256 52.00000 37.75000 27.4% 19.7 35s 22314 6812 50.50000 50 264 52.00000 38.70588 25.6% 19.4 40s 26755 7406 46.89855 36 270 52.00000 39.83903 23.4% 18.9 45s 31330 7835 47.13907 41 265 52.00000 40.76295 21.6% 18.6 50s *31532 7531 42 51.0000000 40.81081 20.0% 18.6 50s 33837 7547 48.14895 40 245 51.00000 41.29787 19.0% 18.5 55s 37720 7436 cutoff 47 51.00000 42.01852 17.6% 18.3 60s 41419 7223 46.72684 43 249 51.00000 42.79395 16.1% 18.2 65s 45489 6793 49.26986 39 226 51.00000 43.57479 14.6% 18.1 70s 50119 6092 48.26531 40 267 51.00000 44.47328 12.8% 18.0 75s 53867 5189 46.18890 37 267 51.00000 45.27241 11.2% 18.0 80s 58678 3216 cutoff 38 51.00000 46.62927 8.57% 18.0 85s Explored 63530 nodes (1120969 simplex iterations) in 88.77 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.100000000005e+01, best bound 5.100000000005e+01, gap 0.0%