Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:41:54 2012 Optimize a model with 188 rows, 454 columns and 454 nonzeros Model has 374 quadratic constraints Presolve removed 0 rows and 1 columns Presolve time: 2.17s Presolved: 188 rows, 453 columns, 453 nonzeros Variable types: 374 continuous, 79 integer (78 binary) Root relaxation: objective 0.000000e+00, 40 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 92.0000000 - - - 2s 0 0 0.00000 0 40 92.00000 0.00000 100% - 2s 0 0 0.00000 0 48 92.00000 0.00000 100% - 2s 0 0 0.00000 0 45 92.00000 0.00000 100% - 2s 0 2 0.00000 0 45 92.00000 0.00000 100% - 2s H 54 54 72.0000000 4.45000 93.8% 26.5 2s * 64 60 40 54.0000000 4.45000 91.8% 25.3 2s * 114 78 28 43.0000000 4.47059 89.6% 29.6 2s * 1192 622 42 42.0000000 13.50417 67.8% 37.4 4s 1244 642 25.66667 38 277 42.00000 13.50417 67.8% 36.6 5s H 3012 1189 39.0000000 21.85185 44.0% 27.3 7s 3772 1496 35.98507 45 269 39.00000 23.00000 41.0% 25.8 10s 6439 2401 36.24242 45 264 39.00000 25.52027 34.6% 23.1 15s 7983 2781 32.71880 41 270 39.00000 26.50518 32.0% 22.4 20s 10211 3251 37.04438 43 247 39.00000 27.71429 28.9% 21.4 25s 14091 3684 34.64114 41 282 39.00000 29.31111 24.8% 20.6 30s 18253 3808 36.59322 37 266 39.00000 30.60000 21.5% 20.0 35s 22779 3563 cutoff 39 39.00000 31.86047 18.3% 19.7 40s 27309 3012 36.38710 41 271 39.00000 33.07143 15.2% 19.6 45s *30525 1957 44 38.0000000 34.10453 10.3% 19.6 48s 30558 1946 36.08009 40 241 38.00000 34.11580 10.2% 19.6 50s 32508 723 cutoff 36 38.00000 35.33333 7.02% 19.5 55s Explored 33430 nodes (644614 simplex iterations) in 55.61 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.800000000005e+01, best bound 3.800000000005e+01, gap 0.0%