Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:54:55 2012 Optimize a model with 109 rows, 238 columns and 238 nonzeros Model has 216 quadratic constraints Presolve time: 1.26s 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 52.0000000 - - - 1s 0 0 0.00000 0 15 52.00000 0.00000 100% - 1s 0 0 0.40000 0 22 52.00000 0.40000 99.2% - 1s 0 2 0.45714 0 22 52.00000 0.45714 99.1% - 1s * 30 30 16 46.0000000 5.26316 88.6% 30.7 1s * 32 28 16 45.0000000 5.26316 88.3% 29.1 1s H 77 58 44.0000000 11.00000 75.0% 29.1 1s * 111 82 13 43.0000000 11.50000 73.3% 30.0 1s * 335 144 13 42.0000000 21.50000 48.8% 27.5 1s * 341 135 14 41.0000000 21.50000 47.6% 27.0 1s Cutting planes: Gomory: 1 Explored 1322 nodes (28421 simplex iterations) in 1.92 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.100000000000e+01, best bound 4.100000000000e+01, gap 0.0%