Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:37:27 2012 Optimize a model with 7 rows, 20 columns and 20 nonzeros Model has 12 quadratic constraints Presolve time: 0.07s Presolved: 7 rows, 20 columns, 20 nonzeros Variable types: 12 continuous, 8 integer (8 binary) Root relaxation: objective 0.000000e+00, 4 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 4.0000000 - - - 0s 0 0 0.00000 0 2 4.00000 0.00000 100% - 0s 0 0 0.00000 0 5 4.00000 0.00000 100% - 0s 0 0 0.00000 0 4 4.00000 0.00000 100% - 0s 0 2 0.00000 0 4 4.00000 0.00000 100% - 0s * 4 4 3 2.0000000 1.50000 25.0% 4.2 0s Cutting planes: Explored 8 nodes (43 simplex iterations) in 0.08 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%