Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:11 2012 Optimize a model with 21 rows, 49 columns and 49 nonzeros Model has 40 quadratic constraints Presolve time: 0.23s Presolved: 21 rows, 49 columns, 49 nonzeros Variable types: 40 continuous, 9 integer (9 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 10.0000000 - - - 0s 0 0 0.00000 0 7 10.00000 0.00000 100% - 0s 0 0 0.32000 0 8 10.00000 0.32000 96.8% - 0s 0 2 0.57143 0 8 10.00000 0.57143 94.3% - 0s * 12 7 5 9.0000000 3.57143 60.3% 5.8 0s * 19 9 6 8.0000000 4.00000 50.0% 5.2 0s Cutting planes: Gomory: 1 Explored 35 nodes (229 simplex iterations) in 0.25 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%