Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:31:02 2012 Optimize a model with 167 rows, 392 columns and 392 nonzeros Model has 332 quadratic constraints Presolve time: 1.94s Presolved: 167 rows, 392 columns, 392 nonzeros Variable types: 332 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 80.0000000 - - - 1s 0 0 0.00000 0 26 80.00000 0.00000 100% - 1s 0 0 0.00000 0 40 80.00000 0.00000 100% - 1s 0 0 0.00000 0 40 80.00000 0.00000 100% - 1s 0 2 0.00000 0 40 80.00000 0.00000 100% - 1s H 44 44 55.0000000 4.11765 92.5% 29.3 2s H 88 66 42.0000000 6.20833 85.2% 28.0 2s * 276 205 28 41.0000000 7.41176 81.9% 31.2 2s 1936 774 29.59615 32 237 41.00000 19.00000 53.7% 29.9 5s * 3635 1520 44 40.0000000 22.45285 43.9% 24.5 6s * 3756 1475 42 39.0000000 22.60000 42.1% 24.3 6s H 4168 1532 38.0000000 23.10345 39.2% 23.5 7s 5820 1863 28.00000 32 229 38.00000 25.04762 34.1% 21.9 10s 6644 2045 36.77083 39 241 38.00000 25.88636 31.9% 21.1 15s 10600 2401 35.20930 40 225 38.00000 28.50000 25.0% 19.6 20s 15131 2360 35.14894 45 227 38.00000 30.80000 18.9% 18.6 25s 20448 1362 cutoff 36 38.00000 33.41463 12.1% 18.1 30s Explored 22928 nodes (408450 simplex iterations) in 31.91 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%