Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:57:53 2012 Optimize a model with 184 rows, 558 columns and 558 nonzeros Model has 366 quadratic constraints Presolve removed 0 rows and 29 columns Presolve time: 2.16s Presolved: 184 rows, 529 columns, 529 nonzeros Variable types: 366 continuous, 163 integer (162 binary) Root relaxation: objective 0.000000e+00, 65 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 85.0000000 - - - 2s 0 0 0.00000 0 3 85.00000 0.00000 100% - 2s 0 0 0.00000 0 49 85.00000 0.00000 100% - 2s 0 0 0.00000 0 105 85.00000 0.00000 100% - 2s 0 2 0.00000 0 81 85.00000 0.00000 100% - 2s H 39 39 14.0000000 1.38028 90.1% 31.7 2s * 40 38 29 9.0000000 1.38028 84.7% 31.1 2s * 186 82 25 8.0000000 2.23140 72.1% 17.2 2s H 277 108 8.0000000 3.03297 62.1% 16.0 2s * 282 83 26 7.0000000 3.03297 56.7% 16.0 2s Cutting planes: Explored 1078 nodes (14707 simplex iterations) in 2.72 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%