Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:22:12 2012 Optimize a model with 221 rows, 654 columns and 654 nonzeros Model has 440 quadratic constraints Presolve removed 0 rows and 25 columns Presolve time: 2.57s Presolved: 221 rows, 629 columns, 629 nonzeros Variable types: 440 continuous, 189 integer (188 binary) Root relaxation: objective 0.000000e+00, 77 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 104.0000000 - - - 2s 0 0 0.00000 0 87 104.00000 0.00000 100% - 2s 0 0 0.00000 0 126 104.00000 0.00000 100% - 2s 0 0 0.00000 0 126 104.00000 0.00000 100% - 2s 0 2 0.00000 0 119 104.00000 0.00000 100% - 2s H 44 44 15.0000000 2.35441 84.3% 30.2 2s H 54 46 14.0000000 2.35441 83.2% 27.9 2s * 82 64 24 13.0000000 2.68482 79.3% 24.8 2s * 196 111 11 12.0000000 3.82525 68.1% 17.8 2s H 295 113 11.0000000 4.95183 55.0% 17.0 2s 766 232 cutoff 24 11.00000 6.67105 39.4% 27.9 5s * 987 154 21 10.0000000 6.67105 33.3% 35.0 5s Explored 1272 nodes (48249 simplex iterations) in 6.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%