Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:53:01 2012 Optimize a model with 172 rows, 526 columns and 526 nonzeros Model has 342 quadratic constraints Presolve removed 0 rows and 24 columns Presolve time: 1.99s Presolved: 172 rows, 502 columns, 502 nonzeros Variable types: 342 continuous, 160 integer (159 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 74.0000000 - - - 2s 0 0 0.00000 0 52 74.00000 0.00000 100% - 2s 0 0 0.00000 0 79 74.00000 0.00000 100% - 2s 0 0 0.00000 0 74 74.00000 0.00000 100% - 2s 0 2 0.00000 0 110 74.00000 0.00000 100% - 2s H 36 34 7.0000000 0.94059 86.6% 48.3 2s * 40 31 25 6.0000000 0.94059 84.3% 46.8 2s * 170 33 9 5.0000000 3.53846 29.2% 24.4 2s Cutting planes: Gomory: 1 Explored 218 nodes (6642 simplex iterations) in 2.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%