Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:19 2012 Optimize a model with 37 rows, 84 columns and 84 nonzeros Model has 72 quadratic constraints Presolve time: 0.42s Presolved: 37 rows, 84 columns, 84 nonzeros Variable types: 72 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 23.0000000 - - - 0s 0 0 0.00000 0 12 23.00000 0.00000 100% - 0s 0 0 0.60000 0 12 23.00000 0.60000 97.4% - 0s 0 2 0.80000 0 12 23.00000 0.80000 96.5% - 0s * 11 11 8 16.0000000 3.60000 77.5% 10.5 0s * 40 17 8 15.0000000 7.00000 53.3% 7.2 0s * 42 15 6 14.0000000 7.00000 50.0% 7.0 0s Cutting planes: Gomory: 1 Explored 90 nodes (652 simplex iterations) in 0.45 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.400000000000e+01, best bound 1.400000000000e+01, gap 0.0%