Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:22 2012 Optimize a model with 27 rows, 82 columns and 82 nonzeros Model has 52 quadratic constraints Presolve removed 0 rows and 3 columns Presolve time: 0.31s Presolved: 27 rows, 79 columns, 79 nonzeros Variable types: 52 continuous, 27 integer (26 binary) Root relaxation: objective 0.000000e+00, 12 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 18.0000000 - - - 0s 0 0 0.00000 0 4 18.00000 0.00000 100% - 0s 0 0 0.00000 0 16 18.00000 0.00000 100% - 0s 0 0 0.00000 0 16 18.00000 0.00000 100% - 0s H 0 0 2.0000000 0.00000 100% - 0s 0 2 0.00000 0 16 2.00000 0.00000 100% - 0s * 6 6 4 1.0000000 0.33333 66.7% 15.3 0s Cutting planes: Explored 22 nodes (316 simplex iterations) in 0.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+00, best bound 1.000000000000e+00, gap 0.0%