Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:34:05 2012 Optimize a model with 1 rows, 52 columns and 52 nonzeros Model has 131 quadratic objective terms Modified 51 Q diagonals Presolve time: 0.01s Presolved: 1 rows, 52 columns, 52 nonzeros Presolved model has 182 quadratic objective terms Variable types: 0 continuous, 52 integer (52 binary) Found heuristic solution: objective 70.0000000 Root relaxation: objective 0.000000e+00, 55 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 51 70.00000 0.00000 100% - 0s H 0 0 59.0000000 0.00000 100% - 0s H 0 0 53.0000000 0.00000 100% - 0s H 0 0 48.0000000 0.00000 100% - 0s H 0 0 41.0000000 0.00000 100% - 0s H 0 0 38.0000000 0.00000 100% - 0s H 0 0 36.0000000 0.00000 100% - 0s 0 2 0.00000 0 51 36.00000 0.00000 100% - 0s H 367 316 35.0000000 4.45412 87.3% 2.6 0s H 470 382 33.0000000 4.79537 85.5% 2.6 0s H 487 353 30.0000000 4.79537 84.0% 2.6 0s H11600 6243 29.0000000 15.81283 45.5% 2.6 0s 59739 26864 20.39747 22 38 29.00000 19.48093 32.8% 2.6 5s 120536 47091 25.03762 27 32 29.00000 21.01557 27.5% 2.6 10s 180992 63369 24.53831 28 30 29.00000 21.86591 24.6% 2.6 15s 241591 76791 25.22690 28 31 29.00000 22.47784 22.5% 2.6 20s 302031 87258 23.61227 27 33 29.00000 22.96739 20.8% 2.6 25s 362211 95747 27.96469 29 29 29.00000 23.37340 19.4% 2.6 30s 421659 101888 26.04866 30 27 29.00000 23.71804 18.2% 2.6 35s 480953 106202 27.35481 29 31 29.00000 24.00765 17.2% 2.6 40s 540872 108495 25.00245 29 30 29.00000 24.28145 16.3% 2.6 45s 600218 109034 27.66600 30 28 29.00000 24.52808 15.4% 2.6 50s 659660 107492 25.90141 30 30 29.00000 24.76701 14.6% 2.6 55s 719230 104105 27.46659 35 25 29.00000 24.98683 13.8% 2.6 60s 778684 98987 27.43409 31 28 29.00000 25.20585 13.1% 2.6 65s 837655 91938 26.05372 29 30 29.00000 25.42579 12.3% 2.6 70s 896433 83040 27.18064 30 28 29.00000 25.65684 11.5% 2.6 75s 954732 72098 25.90299 27 32 29.00000 25.90299 10.7% 2.6 80s 1012522 58625 26.19682 29 28 29.00000 26.19316 9.68% 2.6 85s 1070335 41363 26.58108 30 29 29.00000 26.58108 8.34% 2.6 90s 1127157 16058 27.81726 37 17 29.00000 27.29923 5.86% 2.6 95s Explored 1147024 nodes (2930457 simplex iterations) in 97.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.900000000000e+01, best bound 2.900000000000e+01, gap 0.0%