Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:17 2012 Optimize a model with 24 rows, 57 columns and 57 nonzeros Model has 46 quadratic constraints Presolve time: 0.27s Presolved: 24 rows, 57 columns, 57 nonzeros Variable types: 46 continuous, 11 integer (11 binary) Root relaxation: objective 0.000000e+00, 5 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 11.0000000 - - - 0s 0 0 0.00000 0 7 11.00000 0.00000 100% - 0s 0 0 0.25641 0 11 11.00000 0.25641 97.7% - 0s 0 2 0.29787 0 11 11.00000 0.29787 97.3% - 0s * 12 12 8 9.0000000 3.60000 60.0% 6.6 0s * 32 9 5 8.0000000 5.00000 37.5% 4.9 0s Cutting planes: Gomory: 1 Explored 49 nodes (302 simplex iterations) in 0.28 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%