Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:13:19 2012 Optimize a model with 79 rows, 214 columns and 214 nonzeros Model has 156 quadratic constraints Presolve removed 0 rows and 5 columns Presolve time: 0.91s Presolved: 79 rows, 209 columns, 209 nonzeros Variable types: 156 continuous, 53 integer (52 binary) Root relaxation: objective 0.000000e+00, 29 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 39.0000000 - - - 0s 0 0 0.00000 0 2 39.00000 0.00000 100% - 0s 0 0 0.00000 0 37 39.00000 0.00000 100% - 0s 0 0 0.00000 0 33 39.00000 0.00000 100% - 0s 0 2 0.00000 0 31 39.00000 0.00000 100% - 0s * 30 30 18 13.0000000 3.23077 75.1% 24.9 0s H 44 31 11.0000000 4.00000 63.6% 20.0 0s Cutting planes: Explored 523 nodes (6709 simplex iterations) in 1.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.099999999997e+01, best bound 1.099999999997e+01, gap 0.0%