Gurobi 5.0.1 (linux64) logging started Sun Nov 18 08:43:30 2012 Optimize a model with 300 rows, 836 columns and 836 nonzeros Model has 598 quadratic constraints Presolve removed 0 rows and 18 columns Presolve time: 3.49s Presolved: 300 rows, 818 columns, 818 nonzeros Variable types: 598 continuous, 220 integer (219 binary) Root relaxation: objective 0.000000e+00, 83 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 147.0000000 - - - 3s 0 0 0.00000 0 132 147.00000 0.00000 100% - 3s 0 0 0.00000 0 191 147.00000 0.00000 100% - 3s 0 0 0.00000 0 190 147.00000 0.00000 100% - 3s 0 2 0.00000 0 190 147.00000 0.00000 100% - 3s H 49 49 29.0000000 2.64494 90.9% 33.0 3s * 49 49 25 26.0000000 2.64494 89.8% 33.1 3s H 238 176 25.0000000 5.38050 78.5% 33.5 4s 610 330 9.45794 17 479 25.00000 9.45794 62.2% 37.8 5s 2237 668 24.59167 44 477 25.00000 13.21212 47.2% 38.9 10s 4215 1203 21.22706 39 440 25.00000 16.13662 35.5% 36.2 15s * 6149 1408 47 24.0000000 17.37500 27.6% 34.8 19s 6263 1401 22.86338 39 460 24.00000 17.46667 27.2% 34.8 20s 7981 1315 21.88202 38 459 24.00000 18.72676 22.0% 34.9 25s 8549 1250 21.08526 39 488 24.00000 19.02706 20.7% 35.0 30s 8963 1182 21.75510 45 489 24.00000 19.36264 19.3% 34.7 35s 9459 1087 21.34662 39 481 24.00000 19.72676 17.8% 34.5 40s 9796 1016 21.28153 38 510 24.00000 20.00000 16.7% 34.3 45s 10244 912 22.22642 44 420 24.00000 20.22600 15.7% 34.3 50s 11195 566 22.18000 46 494 24.00000 21.20156 11.7% 33.9 55s Explored 12033 nodes (401110 simplex iterations) in 56.99 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.400000000000e+01, best bound 2.400000000000e+01, gap 0.0%