Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:20 2012 Optimize a model with 29 rows, 68 columns and 68 nonzeros Model has 56 quadratic constraints Presolve time: 0.33s Presolved: 29 rows, 68 columns, 68 nonzeros Variable types: 56 continuous, 12 integer (12 binary) Root relaxation: objective 0.000000e+00, 6 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 16.0000000 - - - 0s 0 0 0.00000 0 7 16.00000 0.00000 100% - 0s 0 0 0.12766 0 12 16.00000 0.12766 99.2% - 0s 0 2 0.22222 0 12 16.00000 0.22222 98.6% - 0s * 8 8 5 10.0000000 2.77778 72.2% 10.6 0s * 12 7 5 9.0000000 2.77778 69.1% 8.9 0s Cutting planes: Gomory: 2 Explored 35 nodes (315 simplex iterations) in 0.34 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%