Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:34:58 2012 Optimize a model with 1 rows, 29 columns and 29 nonzeros Model has 215 quadratic objective terms Modified 29 Q diagonals Presolve time: 0.01s Presolved: 1 rows, 29 columns, 29 nonzeros Presolved model has 244 quadratic objective terms Variable types: 0 continuous, 29 integer (29 binary) Found heuristic solution: objective 102.0000000 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 0 0 0.00000 0 29 102.00000 0.00000 100% - 0s H 0 0 101.0000000 0.00000 100% - 0s H 0 0 95.0000000 0.00000 100% - 0s H 0 0 91.0000000 0.00000 100% - 0s 0 2 3.62657 0 29 91.00000 3.62657 96.0% - 0s * 516 414 17 90.0000000 18.41728 79.5% 2.0 0s H 1074 609 86.0000000 23.80907 72.3% 2.1 0s H 1081 570 83.0000000 23.80907 71.3% 2.1 0s 64213 23325 74.30390 30 10 83.00000 57.57897 30.6% 2.0 5s 133375 39274 77.93787 30 10 83.00000 62.45397 24.8% 2.0 10s 199581 49767 65.11788 25 15 83.00000 65.11788 21.5% 2.0 15s 264713 56896 67.13579 26 14 83.00000 67.13579 19.1% 2.0 20s 328539 60884 75.39784 28 12 83.00000 68.74080 17.2% 2.0 25s 391801 62081 75.72661 29 11 83.00000 70.09654 15.5% 2.0 30s 456967 60106 71.28133 27 13 83.00000 71.28133 14.1% 2.0 35s 520502 55334 76.33844 29 11 83.00000 72.32892 12.9% 2.0 40s 584231 48191 80.53596 31 9 83.00000 73.39959 11.6% 2.0 45s 645050 38461 77.09053 29 11 83.00000 74.64424 10.1% 2.0 50s 706451 24349 80.69430 28 11 83.00000 76.53438 7.79% 2.0 55s Explored 759899 nodes (1524923 simplex iterations) in 59.73 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.300000000000e+01, best bound 8.300000000000e+01, gap 0.0%