Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:54:10 2012 Optimize a model with 100 rows, 219 columns and 219 nonzeros Model has 198 quadratic constraints Presolve time: 1.15s Presolved: 100 rows, 219 columns, 219 nonzeros Variable types: 198 continuous, 21 integer (21 binary) Root relaxation: objective 0.000000e+00, 10 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 47.0000000 - - - 1s 0 0 0.00000 0 20 47.00000 0.00000 100% - 1s 0 0 0.67347 0 21 47.00000 0.67347 98.6% - 1s 0 2 0.69048 0 21 47.00000 0.69048 98.5% - 1s H 47 39 43.0000000 6.60317 84.6% 21.0 1s * 47 37 11 42.0000000 6.60317 84.3% 21.1 1s H 72 50 39.0000000 6.85714 82.4% 20.9 1s * 77 50 15 38.0000000 6.85714 82.0% 19.8 1s * 1616 208 35 37.0000000 26.60000 28.1% 20.4 2s Explored 2304 nodes (41587 simplex iterations) in 2.55 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%