Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:09 2012 Optimize a model with 27 rows, 77 columns and 77 nonzeros Model has 52 quadratic constraints Presolve removed 0 rows and 3 columns Presolve time: 0.31s Presolved: 27 rows, 74 columns, 74 nonzeros Variable types: 52 continuous, 22 integer (21 binary) Root relaxation: objective 0.000000e+00, 10 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 12.0000000 - - - 0s 0 0 0.00000 0 2 12.00000 0.00000 100% - 0s 0 0 0.00000 0 2 12.00000 0.00000 100% - 0s 0 0 0.00000 0 11 12.00000 0.00000 100% - 0s 0 2 0.00000 0 20 12.00000 0.00000 100% - 0s * 10 10 7 3.0000000 0.88889 70.4% 10.1 0s Cutting planes: Explored 26 nodes (361 simplex iterations) in 0.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%