Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:11:59 2012 Optimize a model with 77 rows, 204 columns and 204 nonzeros Model has 152 quadratic constraints Presolve removed 0 rows and 1 columns Presolve time: 0.89s Presolved: 77 rows, 203 columns, 203 nonzeros Variable types: 152 continuous, 51 integer (50 binary) Root relaxation: objective 0.000000e+00, 26 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 36.0000000 - - - 0s 0 0 0.00000 0 26 36.00000 0.00000 100% - 0s 0 0 0.00000 0 44 36.00000 0.00000 100% - 0s 0 0 0.00000 0 42 36.00000 0.00000 100% - 0s 0 2 0.00000 0 41 36.00000 0.00000 100% - 0s H 16 16 14.0000000 1.91667 86.3% 45.6 0s * 24 22 14 12.0000000 1.91667 84.0% 37.2 0s H 39 26 11.0000000 2.00000 81.8% 29.0 0s * 51 24 8 9.0000000 2.04142 77.3% 27.0 0s * 89 18 6 8.0000000 3.06870 61.6% 25.3 0s Cutting planes: Gomory: 1 Explored 120 nodes (3452 simplex iterations) in 0.97 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%