Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:35:34 2012 Optimize a model with 135 rows, 433 columns and 433 nonzeros Model has 268 quadratic constraints Presolve removed 0 rows and 32 columns Presolve time: 1.56s Presolved: 135 rows, 401 columns, 401 nonzeros Variable types: 268 continuous, 133 integer (132 binary) Root relaxation: objective 0.000000e+00, 49 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 59.0000000 - - - 1s 0 0 0.00000 0 57 59.00000 0.00000 100% - 1s 0 0 0.00000 0 66 59.00000 0.00000 100% - 1s 0 0 0.00000 0 49 59.00000 0.00000 100% - 1s 0 2 0.00000 0 49 59.00000 0.00000 100% - 1s H 24 24 6.0000000 0.72000 88.0% 28.2 1s H 60 28 5.0000000 1.14286 77.1% 18.3 1s * 77 20 10 4.0000000 1.15789 71.1% 16.6 1s H 91 19 4.0000000 1.58333 60.4% 16.0 1s * 91 12 8 3.0000000 1.58333 47.2% 16.0 1s Cutting planes: Explored 113 nodes (3099 simplex iterations) in 1.70 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%