Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:13:48 2012 Optimize a model with 20 rows, 91 columns and 91 nonzeros Model has 38 quadratic constraints Presolve removed 0 rows and 22 columns Presolve time: 0.22s Presolved: 20 rows, 69 columns, 69 nonzeros Variable types: 38 continuous, 31 integer (30 binary) Root relaxation: objective 0.000000e+00, 11 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 0.0000000 0.00000 0.0% - 0s Cutting planes: Explored 0 nodes (24 simplex iterations) in 0.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0%