Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:20 2012 Optimize a model with 31 rows, 90 columns and 90 nonzeros Model has 60 quadratic constraints Presolve removed 0 rows and 5 columns Presolve time: 0.35s Presolved: 31 rows, 85 columns, 85 nonzeros Variable types: 60 continuous, 25 integer (24 binary) Root relaxation: objective 0.000000e+00, 10 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 20.0000000 - - - 0s 0 0 0.00000 0 10 20.00000 0.00000 100% - 0s 0 0 0.00000 0 9 20.00000 0.00000 100% - 0s 0 0 0.00000 0 16 20.00000 0.00000 100% - 0s 0 2 0.00000 0 16 20.00000 0.00000 100% - 0s * 17 13 12 5.0000000 1.26316 74.7% 10.3 0s * 24 7 5 3.0000000 1.30000 56.7% 8.5 0s Cutting planes: Explored 41 nodes (545 simplex iterations) in 0.37 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%