Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:39:47 2012 Optimize a model with 200 rows, 427 columns and 427 nonzeros Model has 398 quadratic constraints Presolve time: 2.32s Presolved: 200 rows, 427 columns, 427 nonzeros Variable types: 398 continuous, 29 integer (29 binary) Root relaxation: objective 0.000000e+00, 14 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 102.0000000 - - - 2s 0 0 0.00000 0 24 102.00000 0.00000 100% - 2s 0 0 0.42947 0 29 102.00000 0.42947 100% - 2s 0 2 0.50000 0 29 102.00000 0.50000 100% - 2s * 43 43 22 90.0000000 5.27273 94.1% 40.4 2s H 56 48 89.0000000 5.31313 94.0% 42.9 2s H 117 92 83.0000000 10.90909 86.9% 43.0 2s H 440 269 82.0000000 18.33333 77.6% 44.0 2s 970 513 66.50000 49 234 82.00000 24.44444 70.2% 51.8 5s * 3815 1377 43 81.0000000 40.90000 49.5% 32.6 8s 5114 1680 71.83333 55 232 81.00000 46.80952 42.2% 30.7 10s * 5215 1667 52 80.0000000 47.00000 41.2% 30.5 10s 7939 2160 62.80000 36 239 80.00000 53.06250 33.7% 28.2 15s 11009 2578 77.17647 40 229 80.00000 58.00000 27.5% 26.9 20s 15722 2817 74.00000 50 224 80.00000 62.73440 21.6% 25.4 25s 20263 2940 71.70588 41 221 80.00000 65.66667 17.9% 24.2 30s 25563 2723 75.81250 48 205 80.00000 68.50000 14.4% 23.1 35s 31018 2069 cutoff 46 80.00000 71.25000 10.9% 22.3 40s *31588 1823 50 79.0000000 71.69600 9.25% 22.2 40s Explored 35041 nodes (754711 simplex iterations) in 43.62 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.900000000050e+01, best bound 7.900000000050e+01, gap 0.0%