Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:55:03 2012 Optimize a model with 109 rows, 238 columns and 238 nonzeros Model has 216 quadratic constraints Presolve time: 1.25s Presolved: 109 rows, 238 columns, 238 nonzeros Variable types: 216 continuous, 22 integer (22 binary) Root relaxation: objective 0.000000e+00, 11 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 53.0000000 - - - 1s 0 0 0.00000 0 16 53.00000 0.00000 100% - 1s 0 0 0.40000 0 22 53.00000 0.40000 99.2% - 1s 0 2 0.44444 0 22 53.00000 0.44444 99.2% - 1s * 27 27 16 45.0000000 5.16667 88.5% 28.0 1s H 51 43 43.0000000 5.26190 87.8% 26.6 1s * 76 48 11 37.0000000 8.50000 77.0% 26.9 1s Cutting planes: Gomory: 1 Explored 922 nodes (18689 simplex iterations) in 1.72 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.700000000000e+01, best bound 3.700000000000e+01, gap 0.0%