Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:56:53 2012 Optimize a model with 187 rows, 563 columns and 563 nonzeros Model has 372 quadratic constraints Presolve removed 0 rows and 25 columns Presolve time: 2.17s Presolved: 187 rows, 538 columns, 538 nonzeros Variable types: 372 continuous, 166 integer (165 binary) Root relaxation: objective 0.000000e+00, 67 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 100.0000000 - - - 2s 0 0 0.00000 0 2 100.00000 0.00000 100% - 2s 0 0 0.00000 0 88 100.00000 0.00000 100% - 2s 0 0 0.00000 0 117 100.00000 0.00000 100% - 2s 0 2 0.00000 0 115 100.00000 0.00000 100% - 2s * 28 28 21 8.0000000 2.16667 72.9% 43.9 2s H 423 77 8.0000000 6.16216 23.0% 14.3 2s Cutting planes: Explored 734 nodes (10226 simplex iterations) in 2.59 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.999999998864e+00, best bound 7.999999998864e+00, gap 0.0%