Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:15 2012 Optimize a model with 46 rows, 116 columns and 116 nonzeros Model has 90 quadratic constraints Presolve time: 0.52s Presolved: 46 rows, 116 columns, 116 nonzeros Variable types: 90 continuous, 26 integer (26 binary) Root relaxation: objective 0.000000e+00, 13 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 21 23.00000 0.00000 100% - 0s 0 0 0.47500 0 25 23.00000 0.47500 97.9% - 0s H 0 0 20.0000000 0.47500 97.6% - 0s 0 2 0.50595 0 25 20.00000 0.50595 97.5% - 0s * 12 12 9 11.0000000 1.93750 82.4% 15.2 0s * 31 17 11 10.0000000 2.23529 77.6% 11.4 0s * 86 12 8 8.0000000 6.17647 22.8% 11.7 0s Cutting planes: Gomory: 1 Explored 100 nodes (1311 simplex iterations) in 0.56 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%