Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:36:34 2012 Optimize a model with 159 rows, 483 columns and 483 nonzeros Model has 316 quadratic constraints Presolve removed 0 rows and 25 columns Presolve time: 1.84s Presolved: 159 rows, 458 columns, 458 nonzeros Variable types: 316 continuous, 142 integer (141 binary) Root relaxation: objective 0.000000e+00, 57 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 90.0000000 - - - 1s 0 0 0.00000 0 11 90.00000 0.00000 100% - 1s 0 0 0.00000 0 14 90.00000 0.00000 100% - 1s 0 0 0.00000 0 13 90.00000 0.00000 100% - 1s 0 2 0.00000 0 10 90.00000 0.00000 100% - 1s * 16 11 11 5.0000000 1.45833 70.8% 77.6 1s H 62 13 5.0000000 3.71560 25.7% 29.5 1s Cutting planes: Explored 80 nodes (3248 simplex iterations) in 1.96 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.999999998911e+00, best bound 4.999999998911e+00, gap 0.0%