Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:21 2012 Optimize a model with 37 rows, 84 columns and 84 nonzeros Model has 72 quadratic constraints Presolve time: 0.42s Presolved: 37 rows, 84 columns, 84 nonzeros Variable types: 72 continuous, 12 integer (12 binary) Root relaxation: objective 0.000000e+00, 6 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 18.0000000 - - - 0s 0 0 0.00000 0 9 18.00000 0.00000 100% - 0s 0 0 0.12500 0 10 18.00000 0.12500 99.3% - 0s 0 0 0.12500 0 10 18.00000 0.12500 99.3% - 0s 0 2 0.59375 0 10 18.00000 0.59375 96.7% - 0s * 25 14 6 15.0000000 6.91534 53.9% 8.5 0s Cutting planes: Gomory: 1 Explored 86 nodes (672 simplex iterations) in 0.44 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.500000000000e+01, best bound 1.500000000000e+01, gap 0.0%