Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:36 2012 Optimize a model with 47 rows, 122 columns and 122 nonzeros Model has 92 quadratic constraints Presolve time: 0.54s Presolved: 47 rows, 122 columns, 122 nonzeros Variable types: 92 continuous, 30 integer (30 binary) Root relaxation: objective 0.000000e+00, 15 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 24.0000000 - - - 0s 0 0 0.00000 0 14 24.00000 0.00000 100% - 0s 0 0 0.00000 0 4 24.00000 0.00000 100% - 0s 0 0 0.00000 0 26 24.00000 0.00000 100% - 0s 0 2 0.00000 0 25 24.00000 0.00000 100% - 0s * 18 18 12 12.0000000 3.70588 69.1% 16.6 0s H 27 18 10.0000000 4.30769 56.9% 16.4 0s * 29 15 8 9.0000000 4.30769 52.1% 15.8 0s Cutting planes: Explored 89 nodes (1447 simplex iterations) in 0.57 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%