Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:38:31 2012 Optimize a model with 188 rows, 453 columns and 453 nonzeros Model has 374 quadratic constraints Presolve time: 2.18s Presolved: 188 rows, 453 columns, 453 nonzeros Variable types: 374 continuous, 79 integer (79 binary) Root relaxation: objective 0.000000e+00, 39 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 94.0000000 - - - 2s 0 0 0.00000 0 43 94.00000 0.00000 100% - 2s 0 0 0.06511 0 74 94.00000 0.06511 100% - 2s 0 2 0.08488 0 74 94.00000 0.08488 100% - 2s H 54 54 69.0000000 5.71429 91.7% 32.3 2s * 70 68 41 44.0000000 5.71429 87.0% 27.6 2s H 102 89 42.0000000 5.78873 86.2% 28.5 2s * 109 94 26 41.0000000 5.78873 85.9% 27.3 2s * 264 208 23 40.0000000 8.62791 78.4% 31.8 2s * 459 266 23 37.0000000 11.60000 68.6% 31.8 2s 1190 558 35.75000 38 249 37.00000 14.94737 59.6% 36.7 5s 5444 2204 cutoff 41 37.00000 21.10256 43.0% 22.8 10s 9738 3546 29.43284 31 260 37.00000 24.00000 35.1% 21.2 15s 14193 4647 32.39394 38 259 37.00000 25.66000 30.6% 20.4 20s 18836 5531 33.81818 42 268 37.00000 27.00000 27.0% 19.7 25s 23643 6211 33.43333 40 249 37.00000 28.00000 24.3% 19.1 30s 28558 6752 35.25862 37 245 37.00000 28.85366 22.0% 18.6 35s *29403 5473 42 35.0000000 29.00000 17.1% 18.5 35s 29848 5408 31.14286 31 268 35.00000 29.09836 16.9% 18.5 40s 30074 5378 30.93846 32 262 35.00000 29.16129 16.7% 18.5 45s 31724 5076 31.50000 41 248 35.00000 29.66667 15.2% 18.5 50s 36246 3696 cutoff 33 35.00000 31.08108 11.2% 18.4 55s 41817 7 34.00000 34 270 35.00000 34.00000 2.86% 17.6 61s Explored 41825 nodes (738359 simplex iterations) in 61.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.500000000005e+01, best bound 3.500000000005e+01, gap 0.0%