Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:15 2012 Optimize a model with 47 rows, 133 columns and 133 nonzeros Model has 92 quadratic constraints Presolve removed 0 rows and 3 columns Presolve time: 0.54s Presolved: 47 rows, 130 columns, 130 nonzeros Variable types: 92 continuous, 38 integer (37 binary) Root relaxation: objective 0.000000e+00, 19 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 21.0000000 - - - 0s 0 0 0.00000 0 6 21.00000 0.00000 100% - 0s 0 0 0.00000 0 9 21.00000 0.00000 100% - 0s 0 0 0.00000 0 29 21.00000 0.00000 100% - 0s 0 2 0.00000 0 29 21.00000 0.00000 100% - 0s * 15 15 13 5.0000000 1.50000 70.0% 20.3 0s * 44 5 5 4.0000000 3.00000 25.0% 11.5 0s Cutting planes: Explored 60 nodes (1049 simplex iterations) in 0.57 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%