Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:46 2012 Optimize a model with 39 rows, 121 columns and 121 nonzeros Model has 76 quadratic constraints Presolve removed 0 rows and 5 columns Presolve time: 0.44s Presolved: 39 rows, 116 columns, 116 nonzeros Variable types: 76 continuous, 40 integer (39 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 24.0000000 - - - 0s 0 0 0.00000 0 16 24.00000 0.00000 100% - 0s 0 0 0.00000 0 12 24.00000 0.00000 100% - 0s 0 0 0.00000 0 28 24.00000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s 0 2 0.00000 0 28 10.00000 0.00000 100% - 0s * 21 20 14 3.0000000 0.56250 81.2% 12.6 0s * 27 11 5 2.0000000 1.00000 50.0% 11.0 0s Cutting planes: Explored 53 nodes (882 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%