Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:11 2012 Optimize a model with 24 rows, 55 columns and 55 nonzeros Model has 46 quadratic constraints Presolve time: 0.27s Presolved: 24 rows, 55 columns, 55 nonzeros Variable types: 46 continuous, 9 integer (9 binary) Root relaxation: objective 0.000000e+00, 4 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 15.0000000 - - - 0s 0 0 0.00000 0 6 15.00000 0.00000 100% - 0s 0 0 0.22222 0 9 15.00000 0.22222 98.5% - 0s 0 2 0.33333 0 9 15.00000 0.33333 97.8% - 0s * 9 9 6 10.0000000 2.60000 74.0% 8.2 0s * 28 8 5 9.0000000 5.44444 39.5% 6.7 0s Cutting planes: Gomory: 1 Explored 39 nodes (296 simplex iterations) in 0.28 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%