Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:09 2012 Optimize a model with 22 rows, 68 columns and 68 nonzeros Model has 42 quadratic constraints Presolve removed 0 rows and 3 columns Presolve time: 0.25s Presolved: 22 rows, 65 columns, 65 nonzeros Variable types: 42 continuous, 23 integer (22 binary) Root relaxation: objective 0.000000e+00, 11 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 9.0000000 - - - 0s 0 0 0.00000 0 2 9.00000 0.00000 100% - 0s 0 0 0.00000 0 5 9.00000 0.00000 100% - 0s 0 0 0.00000 0 18 9.00000 0.00000 100% - 0s 0 2 0.00000 0 18 9.00000 0.00000 100% - 0s * 9 7 6 2.0000000 1.16667 41.7% 9.9 0s Cutting planes: Explored 37 nodes (338 simplex iterations) in 0.26 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%