Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:53:14 2012 Optimize a model with 91 rows, 198 columns and 198 nonzeros Model has 180 quadratic constraints Presolve time: 1.05s Presolved: 91 rows, 198 columns, 198 nonzeros Variable types: 180 continuous, 18 integer (18 binary) Root relaxation: objective 0.000000e+00, 9 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 54.0000000 - - - 1s 0 0 0.00000 0 16 54.00000 0.00000 100% - 1s 0 0 0.58333 0 18 54.00000 0.58333 98.9% - 1s 0 2 0.72222 0 18 54.00000 0.72222 98.7% - 1s * 24 24 12 42.0000000 7.50000 82.1% 27.6 1s H 46 36 36.0000000 7.54762 79.0% 25.1 1s * 50 33 13 35.0000000 7.54762 78.4% 23.4 1s Cutting planes: Gomory: 1 Explored 599 nodes (12362 simplex iterations) in 1.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.500000000000e+01, best bound 3.500000000000e+01, gap 0.0%