Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:12:37 2012 Optimize a model with 67 rows, 187 columns and 187 nonzeros Model has 132 quadratic constraints Presolve removed 0 rows and 4 columns Presolve time: 0.77s Presolved: 67 rows, 183 columns, 183 nonzeros Variable types: 132 continuous, 51 integer (50 binary) Root relaxation: objective 0.000000e+00, 27 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 32.0000000 - - - 0s 0 0 0.00000 0 26 32.00000 0.00000 100% - 0s 0 0 0.00000 0 43 32.00000 0.00000 100% - 0s 0 0 0.00000 0 40 32.00000 0.00000 100% - 0s 0 2 0.00000 0 40 32.00000 0.00000 100% - 0s * 39 39 25 14.0000000 0.97143 93.1% 16.9 0s * 42 36 27 12.0000000 0.97143 91.9% 16.0 0s * 96 44 15 9.0000000 1.34596 85.0% 15.1 0s H 135 47 8.0000000 2.00000 75.0% 14.1 0s * 147 41 8 7.0000000 3.42751 51.0% 15.2 0s Cutting planes: Gomory: 2 Explored 272 nodes (4435 simplex iterations) in 0.88 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%