Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:43:10 2012 Optimize a model with 156 rows, 485 columns and 485 nonzeros Model has 310 quadratic constraints Presolve removed 0 rows and 35 columns Presolve time: 1.81s Presolved: 156 rows, 450 columns, 450 nonzeros Variable types: 310 continuous, 140 integer (139 binary) Root relaxation: objective 0.000000e+00, 57 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 2 79.00000 0.00000 100% - 1s 0 0 0.00000 0 5 79.00000 0.00000 100% - 1s 0 0 0.00000 0 59 79.00000 0.00000 100% - 1s 0 2 0.00000 0 57 79.00000 0.00000 100% - 1s H 36 36 7.0000000 0.58824 91.6% 25.3 1s * 72 39 11 6.0000000 0.65217 89.1% 19.7 1s * 104 34 10 5.0000000 0.71429 85.7% 19.3 1s H 190 29 5.0000000 4.00000 20.0% 17.5 1s Cutting planes: Explored 235 nodes (4790 simplex iterations) in 2.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.999999998938e+00, best bound 4.999999998938e+00, gap 0.0%