Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:21:23 2012 Optimize a model with 185 rows, 427 columns and 427 nonzeros Model has 368 quadratic constraints Presolve time: 2.15s Presolved: 185 rows, 427 columns, 427 nonzeros Variable types: 368 continuous, 59 integer (59 binary) Root relaxation: objective 0.000000e+00, 29 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 106.0000000 - - - 2s 0 0 0.00000 0 35 106.00000 0.00000 100% - 2s 0 0 0.15898 0 59 106.00000 0.15898 100% - 2s 0 0 0.15952 0 59 106.00000 0.15952 100% - 2s 0 2 0.22353 0 59 106.00000 0.22353 100% - 2s H 45 45 57.0000000 5.00000 91.2% 35.9 2s * 45 45 27 55.0000000 5.00000 90.9% 36.6 2s H 173 147 53.0000000 10.63265 79.9% 35.8 2s H 765 412 51.0000000 17.31736 66.0% 41.9 4s 1267 577 25.01443 27 278 51.00000 17.76648 65.2% 37.7 5s * 1499 620 57 50.0000000 20.50872 59.0% 35.3 5s H 2874 1140 47.0000000 26.84518 42.9% 28.1 7s 3935 1584 43.98706 35 250 47.00000 28.75000 38.8% 25.1 10s H 4165 1602 46.0000000 29.00000 37.0% 24.7 10s 7140 2335 44.02128 45 254 46.00000 32.14286 30.1% 21.8 15s 9589 2529 39.70588 41 252 46.00000 34.02226 26.0% 21.0 20s *10566 2389 44 45.0000000 34.85714 22.5% 21.0 21s 12480 2243 41.53631 34 262 45.00000 36.48052 18.9% 20.9 25s 16456 1480 41.44770 39 265 45.00000 39.57653 12.1% 20.4 30s Explored 19043 nodes (376236 simplex iterations) in 32.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.500000000000e+01, best bound 4.500000000000e+01, gap 0.0%