Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:47:47 2012 Optimize a model with 174 rows, 407 columns and 407 nonzeros Model has 346 quadratic constraints Presolve time: 2.02s Presolved: 174 rows, 407 columns, 407 nonzeros Variable types: 346 continuous, 61 integer (61 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 80.0000000 - - - 2s 0 0 0.00000 0 32 80.00000 0.00000 100% - 2s 0 0 0.05955 0 60 80.00000 0.05955 100% - 2s 0 2 0.12121 0 60 80.00000 0.12121 100% - 2s H 58 58 49.0000000 4.62500 90.6% 30.8 2s * 60 60 33 48.0000000 4.62500 90.4% 30.1 2s H 94 84 47.0000000 5.00000 89.4% 33.7 2s * 126 88 16 43.0000000 9.13725 78.8% 35.1 2s 1515 657 40.59091 51 249 43.00000 17.72000 58.8% 35.5 5s * 2928 1201 46 42.0000000 22.35795 46.8% 28.1 6s * 3865 1202 45 38.0000000 23.77419 37.4% 25.9 7s 5164 1432 35.68750 42 240 38.00000 25.67568 32.4% 24.2 10s 6225 1554 32.35228 35 241 38.00000 26.78571 29.5% 23.1 15s 9256 1661 35.16327 35 226 38.00000 29.04762 23.6% 21.5 20s 12646 1235 36.28571 39 235 38.00000 31.66667 16.7% 20.6 25s Explored 15461 nodes (308558 simplex iterations) in 28.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.800000000000e+01, best bound 3.800000000000e+01, gap 0.0%