Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:47 2012 Optimize a model with 38 rows, 110 columns and 110 nonzeros Model has 74 quadratic constraints Presolve removed 0 rows and 3 columns Presolve time: 0.43s Presolved: 38 rows, 107 columns, 107 nonzeros Variable types: 74 continuous, 33 integer (32 binary) Root relaxation: objective 0.000000e+00, 17 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 3 21.00000 0.00000 100% - 0s 0 0 0.00000 0 2 21.00000 0.00000 100% - 0s 0 0 0.00000 0 16 21.00000 0.00000 100% - 0s H 0 0 18.0000000 0.00000 100% - 0s 0 2 0.00000 0 28 18.00000 0.00000 100% - 0s * 9 9 6 3.0000000 0.83333 72.2% 22.6 0s Cutting planes: Explored 35 nodes (892 simplex iterations) in 0.46 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%