Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:35 2012 Optimize a model with 55 rows, 152 columns and 152 nonzeros Model has 108 quadratic constraints Presolve removed 0 rows and 4 columns Presolve time: 0.63s Presolved: 55 rows, 148 columns, 148 nonzeros Variable types: 108 continuous, 40 integer (39 binary) Root relaxation: objective 0.000000e+00, 22 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 22.0000000 - - - 0s 0 0 0.00000 0 26 22.00000 0.00000 100% - 0s 0 0 0.00000 0 35 22.00000 0.00000 100% - 0s 0 0 0.00000 0 35 22.00000 0.00000 100% - 0s 0 2 0.00000 0 34 22.00000 0.00000 100% - 0s H 8 8 8.0000000 1.35000 83.1% 36.2 0s * 40 17 6 7.0000000 3.43750 50.9% 20.3 0s Cutting planes: Gomory: 1 Explored 121 nodes (2237 simplex iterations) in 0.68 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%