Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:46 2012 Optimize a model with 50 rows, 135 columns and 135 nonzeros Model has 98 quadratic constraints Presolve removed 0 rows and 3 columns Presolve time: 0.57s Presolved: 50 rows, 132 columns, 132 nonzeros Variable types: 98 continuous, 34 integer (33 binary) Root relaxation: objective 0.000000e+00, 15 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 27.0000000 - - - 0s 0 0 0.00000 0 19 27.00000 0.00000 100% - 0s 0 0 0.00000 0 33 27.00000 0.00000 100% - 0s 0 0 0.00000 0 30 27.00000 0.00000 100% - 0s 0 2 0.00000 0 30 27.00000 0.00000 100% - 0s * 16 15 10 9.0000000 0.96774 89.2% 28.9 0s * 74 24 7 8.0000000 4.97443 37.8% 16.6 0s Cutting planes: Gomory: 2 Explored 138 nodes (2267 simplex iterations) in 0.64 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%