Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:37:33 2013 Optimize a model with 140 rows, 204 columns and 320 nonzeros Model has 40 quadratic constraints Presolve removed 20 rows and 20 columns Presolve time: 0.24s Presolved: 240 rows, 304 columns, 520 nonzeros Variable types: 284 continuous, 20 integer (20 binary) Root relaxation: objective 0.000000e+00, 80 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 2317.1754905 - - - 0s 0 0 0.00000 0 16 2317.17549 0.00000 100% - 0s 0 0 0.00000 0 16 2317.17549 0.00000 100% - 0s 0 2 0.00000 0 16 2317.17549 0.00000 100% - 0s * 38 38 20 1921.9847903 0.00000 100% 26.8 0s * 39 37 20 1835.2086397 0.00000 100% 26.1 0s H 48 36 1763.1546740 0.00000 100% 32.1 0s H 218 154 1722.4990460 0.00000 100% 42.4 0s H 811 437 1705.7077126 262.05392 84.6% 49.0 1s * 811 420 30 1705.7074781 262.05392 84.6% 49.0 1s 3444 1015 1180.25115 20 10 1705.70748 675.62876 60.4% 49.1 5s * 4242 1193 30 1699.7704819 748.03487 56.0% 48.8 5s * 6997 1758 30 1677.2031574 908.44573 45.8% 48.3 9s 7299 1801 1587.87503 23 7 1677.20316 921.96710 45.0% 48.5 10s 10947 2279 1595.29086 24 6 1677.20316 1026.10385 38.8% 48.8 15s 14418 2569 1374.50966 23 7 1677.20316 1094.58670 34.7% 49.6 20s 17675 2712 1479.65852 23 7 1677.20316 1152.77488 31.3% 49.7 25s *18335 2732 30 1677.2031562 1164.08937 30.6% 49.7 25s H18982 2741 1677.2031541 1173.36638 30.0% 49.7 26s 20196 2761 cutoff 23 1677.20315 1189.79776 29.1% 50.0 30s 23576 2730 cutoff 24 1677.20315 1233.93219 26.4% 50.2 35s 27145 2576 1651.59474 23 7 1677.20315 1279.58938 23.7% 49.9 40s 29511 2420 cutoff 27 1677.20315 1306.55846 22.1% 49.8 45s H31355 2255 1677.2031535 1332.14351 20.6% 49.6 47s 33085 2074 1405.20698 21 9 1677.20315 1357.41103 19.1% 49.4 50s 37062 1530 1568.80978 24 6 1677.20315 1419.87098 15.3% 48.4 55s 41298 636 cutoff 24 1677.20315 1543.88150 7.95% 47.3 60s Cutting planes: Explored 42338 nodes (1982611 simplex iterations) in 61.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.677203181970e+03, best bound 1.677203181970e+03, gap 0.0%