Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:35:27 2012 Optimize a model with 164 rows, 490 columns and 490 nonzeros Model has 326 quadratic constraints Presolve removed 0 rows and 25 columns Presolve time: 1.90s Presolved: 164 rows, 465 columns, 465 nonzeros Variable types: 326 continuous, 139 integer (138 binary) Root relaxation: objective 0.000000e+00, 59 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 69.0000000 - - - 1s 0 0 0.00000 0 2 69.00000 0.00000 100% - 1s 0 0 0.00000 0 23 69.00000 0.00000 100% - 1s 0 0 0.00000 0 3 69.00000 0.00000 100% - 1s 0 2 0.00000 0 3 69.00000 0.00000 100% - 1s H 24 24 17.0000000 0.00000 100% 36.9 1s H 27 27 16.0000000 0.00000 100% 33.6 1s * 61 35 44 15.0000000 0.00000 100% 18.9 1s H 75 33 14.0000000 0.00000 100% 20.5 2s * 79 37 17 13.0000000 0.00000 100% 20.6 2s H 109 41 10.0000000 0.55000 94.5% 21.7 2s * 377 57 13 9.0000000 5.60752 37.7% 20.5 2s Cutting planes: Explored 715 nodes (12638 simplex iterations) in 2.36 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%