Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:08 2012 Optimize a model with 15 rows, 36 columns and 36 nonzeros Model has 28 quadratic constraints Presolve time: 0.16s Presolved: 15 rows, 36 columns, 36 nonzeros Variable types: 28 continuous, 8 integer (8 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 9.0000000 - - - 0s 0 0 0.00000 0 2 9.00000 0.00000 100% - 0s 0 0 0.00000 0 7 9.00000 0.00000 100% - 0s 0 0 0.00000 0 6 9.00000 0.00000 100% - 0s 0 2 0.00000 0 6 9.00000 0.00000 100% - 0s * 9 9 7 8.0000000 3.50000 56.2% 6.9 0s * 13 9 7 7.0000000 3.50000 50.0% 5.4 0s * 18 4 3 5.0000000 3.75000 25.0% 4.4 0s Cutting planes: Explored 24 nodes (133 simplex iterations) in 0.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%