Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:52:11 2012 Optimize a model with 172 rows, 524 columns and 524 nonzeros Model has 342 quadratic constraints Presolve removed 0 rows and 24 columns Presolve time: 1.99s Presolved: 172 rows, 500 columns, 500 nonzeros Variable types: 342 continuous, 158 integer (157 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 79.0000000 - - - 1s 0 0 0.00000 0 3 79.00000 0.00000 100% - 2s 0 0 0.00000 0 89 79.00000 0.00000 100% - 2s 0 0 0.00000 0 91 79.00000 0.00000 100% - 2s 0 2 0.00000 0 91 79.00000 0.00000 100% - 2s * 26 26 21 7.0000000 1.06977 84.7% 46.6 2s H 111 33 6.0000000 3.00000 50.0% 20.8 2s H 145 42 6.0000000 3.00000 50.0% 17.2 2s Cutting planes: Explored 478 nodes (7634 simplex iterations) in 2.28 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.999999998865e+00, best bound 5.999999998865e+00, gap 0.0%