Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:42:00 2012 Optimize a model with 94 rows, 228 columns and 228 nonzeros Model has 186 quadratic constraints Presolve time: 1.08s Presolved: 94 rows, 228 columns, 228 nonzeros Variable types: 186 continuous, 42 integer (42 binary) Root relaxation: objective 0.000000e+00, 21 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 41.0000000 - - - 1s 0 0 0.00000 0 39 41.00000 0.00000 100% - 1s 0 0 0.00000 0 20 41.00000 0.00000 100% - 1s 0 0 0.00000 0 20 41.00000 0.00000 100% - 1s 0 2 0.00000 0 20 41.00000 0.00000 100% - 1s * 17 17 13 25.0000000 5.82353 76.7% 41.5 1s * 23 19 16 24.0000000 5.82353 75.7% 32.4 1s * 45 33 15 23.0000000 6.31250 72.6% 24.3 1s * 59 37 10 22.0000000 6.66667 69.7% 23.6 1s * 216 71 10 21.0000000 10.22917 51.3% 20.2 1s Cutting planes: Gomory: 1 Explored 496 nodes (10546 simplex iterations) in 1.35 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.100000000000e+01, best bound 2.100000000000e+01, gap 0.0%