Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:03 2012 Optimize a model with 23 rows, 68 columns and 68 nonzeros Model has 44 quadratic constraints Presolve removed 0 rows and 4 columns Presolve time: 0.26s Presolved: 23 rows, 64 columns, 64 nonzeros Variable types: 44 continuous, 20 integer (19 binary) Root relaxation: objective 0.000000e+00, 8 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 15.0000000 - - - 0s 0 0 0.00000 0 2 15.00000 0.00000 100% - 0s 0 0 0.00000 0 4 15.00000 0.00000 100% - 0s 0 0 0.00000 0 5 15.00000 0.00000 100% - 0s 0 2 0.00000 0 5 15.00000 0.00000 100% - 0s * 3 3 2 2.0000000 1.50000 25.0% 23.0 0s Cutting planes: Explored 7 nodes (188 simplex iterations) in 0.27 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%