Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:06:01 2012 Optimize a model with 159 rows, 373 columns and 373 nonzeros Model has 316 quadratic constraints Presolve time: 1.84s Presolved: 159 rows, 373 columns, 373 nonzeros Variable types: 316 continuous, 57 integer (57 binary) Root relaxation: objective 0.000000e+00, 28 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 31 80.00000 0.00000 100% - 1s 0 0 0.00000 0 47 80.00000 0.00000 100% - 1s 0 0 0.00000 0 47 80.00000 0.00000 100% - 1s 0 2 0.00000 0 47 80.00000 0.00000 100% - 1s H 47 47 45.0000000 6.33333 85.9% 26.8 1s * 49 48 29 44.0000000 6.33333 85.6% 26.9 1s * 223 184 18 43.0000000 10.84713 74.8% 32.4 2s H 345 216 41.0000000 11.80000 71.2% 30.9 2s 2187 775 29.81738 34 224 41.00000 23.56000 42.5% 27.4 5s * 2885 806 43 38.0000000 25.61290 32.6% 25.2 5s 5283 733 36.38462 37 218 38.00000 31.12500 18.1% 22.1 10s Explored 7231 nodes (149799 simplex iterations) in 12.99 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%