Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:30:28 2012 Optimize a model with 1 rows, 29 columns and 29 nonzeros Model has 198 quadratic objective terms Modified 29 Q diagonals Presolve time: 0.01s Presolved: 1 rows, 29 columns, 29 nonzeros Presolved model has 227 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 99.0000000 0.00000 100% - 0s H 0 0 96.0000000 0.00000 100% - 0s H 0 0 83.0000000 0.00000 100% - 0s H 0 0 80.0000000 0.00000 100% - 0s 0 2 2.38473 0 29 80.00000 2.38473 97.0% - 0s * 485 401 18 79.0000000 13.78018 82.6% 2.0 0s H 791 533 75.0000000 18.26028 75.7% 2.1 0s 69581 23285 54.24487 23 17 75.00000 54.24487 27.7% 2.0 5s 141663 36563 73.45723 30 10 75.00000 58.65349 21.8% 2.0 10s 210199 43731 72.07418 28 12 75.00000 61.30136 18.3% 2.0 15s 279069 46117 73.40293 31 9 75.00000 63.17283 15.8% 2.0 20s 348626 43773 64.71384 28 12 75.00000 64.71384 13.7% 2.0 25s 419818 36815 68.45266 26 14 75.00000 66.25467 11.7% 2.0 30s 489522 24493 73.33368 31 9 75.00000 68.26683 8.98% 2.0 35s Explored 551569 nodes (1105629 simplex iterations) in 39.76 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.500000000000e+01, best bound 7.500000000000e+01, gap 0.0%