Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:05:30 2012 Optimize a model with 229 rows, 658 columns and 658 nonzeros Model has 456 quadratic constraints Presolve removed 0 rows and 23 columns Presolve time: 2.66s Presolved: 229 rows, 635 columns, 635 nonzeros Variable types: 456 continuous, 179 integer (178 binary) Root relaxation: objective 0.000000e+00, 81 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 110.0000000 - - - 2s 0 0 0.00000 0 103 110.00000 0.00000 100% - 2s 0 0 0.00000 0 152 110.00000 0.00000 100% - 2s 0 0 0.00000 0 125 110.00000 0.00000 100% - 2s 0 2 0.00000 0 124 110.00000 0.00000 100% - 2s H 47 47 18.0000000 1.96875 89.1% 36.5 2s H 77 52 15.0000000 1.96875 86.9% 31.4 2s * 80 47 22 14.0000000 1.96875 85.9% 31.2 2s Cutting planes: Gomory: 1 Explored 571 nodes (17887 simplex iterations) in 3.31 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.400000000000e+01, best bound 1.400000000000e+01, gap 0.0%