Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:39 2012 Optimize a model with 53 rows, 119 columns and 119 nonzeros Model has 104 quadratic constraints Presolve time: 0.61s Presolved: 53 rows, 119 columns, 119 nonzeros Variable types: 104 continuous, 15 integer (15 binary) Root relaxation: objective 0.000000e+00, 7 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 25.0000000 - - - 0s 0 0 0.00000 0 12 25.00000 0.00000 100% - 0s 0 0 0.55000 0 15 25.00000 0.55000 97.8% - 0s 0 2 0.61364 0 15 25.00000 0.61364 97.5% - 0s * 16 16 9 24.0000000 3.34091 86.1% 19.9 0s * 17 15 10 23.0000000 3.34091 85.5% 18.9 0s * 19 13 8 22.0000000 3.34091 84.8% 17.7 0s * 43 23 7 20.0000000 4.82234 75.9% 17.4 0s H 50 18 19.0000000 4.82234 74.6% 16.0 0s * 105 17 7 18.0000000 7.87500 56.2% 15.0 0s * 150 5 7 17.0000000 13.69379 19.4% 14.8 0s Cutting planes: Gomory: 1 Explored 158 nodes (2423 simplex iterations) in 0.66 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%