Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:37:48 2012 Optimize a model with 24 rows, 66 columns and 66 nonzeros Model has 46 quadratic constraints Presolve removed 0 rows and 1 columns Presolve time: 0.27s Presolved: 24 rows, 65 columns, 65 nonzeros Variable types: 46 continuous, 19 integer (18 binary) Root relaxation: objective 0.000000e+00, 9 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 12.0000000 - - - 0s 0 0 0.00000 0 13 12.00000 0.00000 100% - 0s 0 0 0.19876 0 18 12.00000 0.19876 98.3% - 0s 0 0 0.19876 0 18 12.00000 0.19876 98.3% - 0s 0 2 0.42857 0 18 12.00000 0.42857 96.4% - 0s * 9 9 7 5.0000000 2.54545 49.1% 7.4 0s * 11 6 6 4.0000000 2.54545 36.4% 6.3 0s Cutting planes: Gomory: 2 Explored 22 nodes (286 simplex iterations) in 0.29 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%