Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:52 2012 Optimize a model with 39 rows, 113 columns and 113 nonzeros Model has 76 quadratic constraints Presolve removed 0 rows and 3 columns Presolve time: 0.44s Presolved: 39 rows, 110 columns, 110 nonzeros Variable types: 76 continuous, 34 integer (33 binary) Root relaxation: objective 0.000000e+00, 17 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 19.0000000 - - - 0s 0 0 0.00000 0 12 19.00000 0.00000 100% - 0s 0 0 0.00000 0 31 19.00000 0.00000 100% - 0s 0 0 0.00000 0 30 19.00000 0.00000 100% - 0s 0 2 0.00000 0 28 19.00000 0.00000 100% - 0s * 8 6 6 2.0000000 0.70588 64.7% 24.1 0s Cutting planes: Explored 35 nodes (771 simplex iterations) in 0.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%