Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:52:24 2012 Optimize a model with 172 rows, 525 columns and 525 nonzeros Model has 342 quadratic constraints Presolve removed 0 rows and 28 columns Presolve time: 2.00s Presolved: 172 rows, 497 columns, 497 nonzeros Variable types: 342 continuous, 155 integer (154 binary) Root relaxation: objective 0.000000e+00, 61 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 76.0000000 - - - 2s 0 0 0.00000 0 2 76.00000 0.00000 100% - 2s 0 0 0.00000 0 5 76.00000 0.00000 100% - 2s 0 0 0.00000 0 2 76.00000 0.00000 100% - 2s 0 2 0.00000 0 2 76.00000 0.00000 100% - 2s * 18 17 12 7.0000000 0.23913 96.6% 67.1 2s * 23 8 4 5.0000000 1.08197 78.4% 61.4 2s H 59 16 5.0000000 1.08197 78.4% 30.5 2s Cutting planes: Explored 181 nodes (4749 simplex iterations) in 2.21 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.999999998792e+00, best bound 4.999999998792e+00, gap 0.0%