Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:13:01 2012 Optimize a model with 81 rows, 217 columns and 217 nonzeros Model has 160 quadratic constraints Presolve removed 0 rows and 2 columns Presolve time: 0.93s Presolved: 81 rows, 215 columns, 215 nonzeros Variable types: 160 continuous, 55 integer (54 binary) Root relaxation: objective 0.000000e+00, 28 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 43.0000000 - - - 0s 0 0 0.00000 0 23 43.00000 0.00000 100% - 0s 0 0 0.00000 0 39 43.00000 0.00000 100% - 0s 0 0 0.00000 0 30 43.00000 0.00000 100% - 0s 0 2 0.00000 0 30 43.00000 0.00000 100% - 0s * 25 23 18 11.0000000 2.40000 78.2% 21.2 0s * 44 20 16 8.0000000 3.15909 60.5% 15.8 0s * 131 10 5 7.0000000 5.32143 24.0% 15.0 0s Cutting planes: Gomory: 1 Explored 148 nodes (2627 simplex iterations) in 1.00 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%