Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:53:52 2012 Optimize a model with 97 rows, 212 columns and 212 nonzeros Model has 192 quadratic constraints Presolve time: 1.11s Presolved: 97 rows, 212 columns, 212 nonzeros Variable types: 192 continuous, 20 integer (20 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 49.0000000 - - - 1s 0 0 0.00000 0 20 49.00000 0.00000 100% - 1s 0 0 0.62500 0 20 49.00000 0.62500 98.7% - 1s 0 2 0.66176 0 20 49.00000 0.66176 98.6% - 1s * 26 26 15 45.0000000 6.01136 86.6% 28.3 1s * 28 24 15 44.0000000 6.01136 86.3% 26.7 1s H 48 38 42.0000000 6.04167 85.6% 27.1 1s H 106 74 41.0000000 11.16071 72.8% 24.4 1s * 138 92 13 40.0000000 12.17969 69.6% 24.2 1s * 354 132 14 38.0000000 20.06250 47.2% 22.4 1s * 428 135 13 37.0000000 23.30000 37.0% 21.8 1s Cutting planes: Gomory: 1 Explored 1084 nodes (19912 simplex iterations) in 1.54 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%