Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:52:10 2012 Optimize a model with 94 rows, 233 columns and 233 nonzeros Model has 186 quadratic constraints Presolve time: 1.10s Presolved: 94 rows, 233 columns, 233 nonzeros Variable types: 186 continuous, 47 integer (47 binary) Root relaxation: objective 0.000000e+00, 23 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 50.0000000 - - - 1s 0 0 0.00000 0 23 50.00000 0.00000 100% - 1s 0 0 0.00000 0 47 50.00000 0.00000 100% - 1s 0 0 0.00000 0 46 50.00000 0.00000 100% - 1s 0 2 0.00000 0 46 50.00000 0.00000 100% - 1s * 28 28 16 20.0000000 2.16667 89.2% 41.2 1s * 29 22 16 19.0000000 2.16667 88.6% 40.0 1s * 122 60 15 18.0000000 5.37037 70.2% 28.3 1s Cutting planes: Gomory: 4 Explored 835 nodes (18392 simplex iterations) in 1.51 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.800000000000e+01, best bound 1.800000000000e+01, gap 0.0%