Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:13:34 2012 Optimize a model with 86 rows, 229 columns and 229 nonzeros Model has 170 quadratic constraints Presolve removed 0 rows and 2 columns Presolve time: 0.99s Presolved: 86 rows, 227 columns, 227 nonzeros Variable types: 170 continuous, 57 integer (56 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 42.0000000 - - - 0s 0 0 0.00000 0 24 42.00000 0.00000 100% - 1s 0 0 0.00000 0 29 42.00000 0.00000 100% - 1s 0 0 0.00000 0 2 42.00000 0.00000 100% - 1s 0 2 0.00000 0 2 42.00000 0.00000 100% - 1s * 20 20 16 11.0000000 1.16319 89.4% 26.8 1s * 213 63 9 10.0000000 5.03538 49.6% 14.8 1s Cutting planes: Explored 474 nodes (7810 simplex iterations) in 1.16 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%