Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:51 2012 Optimize a model with 81 rows, 198 columns and 198 nonzeros Model has 160 quadratic constraints Presolve time: 0.93s Presolved: 81 rows, 198 columns, 198 nonzeros Variable types: 160 continuous, 38 integer (38 binary) Root relaxation: objective 0.000000e+00, 19 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 44.0000000 - - - 0s 0 0 0.00000 0 36 44.00000 0.00000 100% - 0s 0 0 0.47222 0 38 44.00000 0.47222 98.9% - 0s 0 0 0.47222 0 38 44.00000 0.47222 98.9% - 0s 0 2 0.57778 0 38 44.00000 0.57778 98.7% - 0s H 8 8 31.0000000 2.94222 90.5% 33.8 0s * 15 15 10 15.0000000 2.94222 80.4% 37.0 0s Cutting planes: Gomory: 1 Explored 153 nodes (3769 simplex iterations) in 1.03 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%