Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:13:22 2012 Optimize a model with 245 rows, 697 columns and 697 nonzeros Model has 488 quadratic constraints Presolve removed 0 rows and 25 columns Presolve time: 2.84s Presolved: 245 rows, 672 columns, 672 nonzeros Variable types: 488 continuous, 184 integer (183 binary) Root relaxation: objective 0.000000e+00, 83 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 117.0000000 - - - 2s 0 0 0.00000 0 109 117.00000 0.00000 100% - 2s 0 0 0.00000 0 163 117.00000 0.00000 100% - 2s 0 0 0.00000 0 162 117.00000 0.00000 100% - 2s 0 2 0.00000 0 161 117.00000 0.00000 100% - 2s H 40 40 25.0000000 3.00000 88.0% 31.6 2s * 45 45 26 21.0000000 3.00000 85.7% 30.5 2s H 157 109 20.0000000 5.31532 73.4% 30.5 3s * 161 99 14 19.0000000 5.31532 72.0% 30.6 3s 701 236 10.21538 13 162 19.00000 10.21538 46.2% 35.6 5s * 893 288 33 18.0000000 10.21538 43.2% 40.3 5s H 2209 269 17.0000000 12.33333 27.5% 32.3 8s 2886 80 16.00000 30 403 17.00000 14.66216 13.8% 32.0 10s Explored 2989 nodes (97679 simplex iterations) in 10.56 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%