Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:40:30 2012 Optimize a model with 83 rows, 204 columns and 204 nonzeros Model has 164 quadratic constraints Presolve time: 0.96s Presolved: 83 rows, 204 columns, 204 nonzeros Variable types: 164 continuous, 40 integer (40 binary) Root relaxation: objective 0.000000e+00, 20 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 44.0000000 - - - 0s 0 0 0.00000 0 16 44.00000 0.00000 100% - 0s 0 0 0.00000 0 20 44.00000 0.00000 100% - 0s 0 0 0.00000 0 20 44.00000 0.00000 100% - 0s 0 2 0.00000 0 20 44.00000 0.00000 100% - 0s * 15 15 12 20.0000000 2.96875 85.2% 27.9 0s * 25 13 7 16.0000000 4.49038 71.9% 25.0 0s Cutting planes: Gomory: 1 Explored 145 nodes (3179 simplex iterations) in 1.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.600000000000e+01, best bound 1.600000000000e+01, gap 0.0%