Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:29:44 2012 Optimize a model with 174 rows, 406 columns and 406 nonzeros Model has 346 quadratic constraints Presolve time: 2.02s Presolved: 174 rows, 406 columns, 406 nonzeros Variable types: 346 continuous, 60 integer (60 binary) Root relaxation: objective 0.000000e+00, 30 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 83.0000000 - - - 2s 0 0 0.00000 0 14 83.00000 0.00000 100% - 2s 0 0 0.00000 0 58 83.00000 0.00000 100% - 2s 0 0 0.00000 0 56 83.00000 0.00000 100% - 2s 0 2 0.00000 0 56 83.00000 0.00000 100% - 2s H 47 47 53.0000000 3.01894 94.3% 41.8 2s H 54 53 50.0000000 3.01894 94.0% 38.7 2s * 55 49 29 49.0000000 3.01894 93.8% 38.3 2s H 252 199 47.0000000 6.16981 86.9% 40.3 2s H 303 228 45.0000000 7.06897 84.3% 41.6 2s * 313 227 20 44.0000000 7.06897 83.9% 40.6 2s * 1463 577 45 43.0000000 16.46154 61.7% 36.9 4s 1466 577 30.45098 27 237 43.00000 16.50000 61.6% 36.9 5s * 2095 734 46 42.0000000 18.61538 55.7% 32.5 5s H 2592 861 40.0000000 20.33333 49.2% 30.6 6s H 3287 1017 39.0000000 22.00000 43.6% 28.8 7s 3784 1134 35.00000 38 221 39.00000 23.06250 40.9% 27.7 10s 6561 1528 34.22917 32 232 39.00000 27.00000 30.8% 24.7 15s 8602 1632 cutoff 35 39.00000 28.90909 25.9% 23.5 20s 11659 1471 35.27660 36 239 39.00000 31.00000 20.5% 22.4 25s 16273 319 36.50000 37 243 39.00000 35.62857 8.64% 21.1 30s Explored 16748 nodes (349501 simplex iterations) in 30.31 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.900000000000e+01, best bound 3.900000000000e+01, gap 0.0%