Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:05 2012 Optimize a model with 39 rows, 100 columns and 100 nonzeros Model has 76 quadratic constraints Presolve time: 0.44s Presolved: 39 rows, 100 columns, 100 nonzeros Variable types: 76 continuous, 24 integer (24 binary) Root relaxation: objective 0.000000e+00, 12 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 22.0000000 - - - 0s 0 0 0.00000 0 4 22.00000 0.00000 100% - 0s 0 0 0.00000 0 6 22.00000 0.00000 100% - 0s 0 0 0.00000 0 19 22.00000 0.00000 100% - 0s 0 2 0.00000 0 19 22.00000 0.00000 100% - 0s * 22 22 13 12.0000000 4.50000 62.5% 15.0 0s H 27 17 11.0000000 4.50000 59.1% 12.9 0s H 32 20 10.0000000 4.50000 55.0% 14.1 0s H 32 14 8.0000000 4.50000 43.7% 14.1 0s Cutting planes: Explored 73 nodes (1063 simplex iterations) in 0.48 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%