Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:05 2012 Optimize a model with 13 rows, 31 columns and 31 nonzeros Model has 24 quadratic constraints Presolve time: 0.14s Presolved: 13 rows, 31 columns, 31 nonzeros Variable types: 24 continuous, 7 integer (7 binary) Root relaxation: objective 0.000000e+00, 3 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 7.0000000 - - - 0s 0 0 0.00000 0 2 7.00000 0.00000 100% - 0s 0 0 0.00000 0 7 7.00000 0.00000 100% - 0s 0 0 0.00000 0 7 7.00000 0.00000 100% - 0s 0 2 0.00000 0 7 7.00000 0.00000 100% - 0s * 3 3 2 4.0000000 3.00000 25.0% 13.3 0s Cutting planes: Explored 6 nodes (78 simplex iterations) in 0.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%