Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:13 2012 Optimize a model with 21 rows, 50 columns and 50 nonzeros Model has 40 quadratic constraints Presolve time: 0.23s Presolved: 21 rows, 50 columns, 50 nonzeros Variable types: 40 continuous, 10 integer (10 binary) Root relaxation: objective 0.000000e+00, 5 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 10.0000000 - - - 0s 0 0 0.00000 0 3 10.00000 0.00000 100% - 0s 0 0 0.00000 0 10 10.00000 0.00000 100% - 0s 0 0 0.00000 0 10 10.00000 0.00000 100% - 0s 0 2 0.00000 0 10 10.00000 0.00000 100% - 0s * 12 6 6 8.0000000 2.85714 64.3% 8.7 0s Cutting planes: Explored 57 nodes (349 simplex iterations) in 0.25 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%