Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:59 2012 Optimize a model with 52 rows, 140 columns and 140 nonzeros Model has 102 quadratic constraints Presolve removed 0 rows and 2 columns Presolve time: 0.60s Presolved: 52 rows, 138 columns, 138 nonzeros Variable types: 102 continuous, 36 integer (35 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 28.0000000 - - - 0s 0 0 0.00000 0 29 28.00000 0.00000 100% - 0s 0 0 0.45714 0 35 28.00000 0.45714 98.4% - 0s H 0 0 27.0000000 0.45714 98.3% - 0s 0 2 0.70000 0 35 27.00000 0.70000 97.4% - 0s H 8 8 10.0000000 1.60000 84.0% 13.8 0s * 11 11 10 8.0000000 1.60000 80.0% 12.4 0s * 174 29 7 7.0000000 5.38462 23.1% 9.8 0s Cutting planes: Gomory: 1 Explored 227 nodes (2594 simplex iterations) in 0.67 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%