Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:05:56 2012 Optimize a model with 167 rows, 358 columns and 358 nonzeros Model has 332 quadratic constraints Presolve time: 1.92s Presolved: 167 rows, 358 columns, 358 nonzeros Variable types: 332 continuous, 26 integer (26 binary) Root relaxation: objective 0.000000e+00, 13 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 83.0000000 - - - 1s 0 0 0.00000 0 24 83.00000 0.00000 100% - 1s 0 0 1.10000 0 26 83.00000 1.10000 98.7% - 1s 0 0 1.10000 0 26 83.00000 1.10000 98.7% - 1s 0 2 1.10000 0 26 83.00000 1.10000 98.7% - 1s * 32 32 20 78.0000000 7.80000 90.0% 41.6 1s * 33 31 20 77.0000000 7.80000 89.9% 40.4 1s H 63 51 69.0000000 7.80000 88.7% 42.8 2s * 66 51 17 68.0000000 7.80000 88.5% 41.3 2s * 349 182 15 67.0000000 29.00000 56.7% 37.9 2s 2271 728 61.00000 39 203 67.00000 37.47059 44.1% 30.4 5s * 4097 1059 33 66.0000000 44.80000 32.1% 26.0 6s 6436 1162 63.26667 36 198 66.00000 51.11765 22.5% 24.0 10s * 8085 1061 44 65.0000000 54.50000 16.2% 22.9 12s 9930 506 61.66667 36 198 65.00000 59.25000 8.85% 22.0 15s Explored 10620 nodes (227287 simplex iterations) in 15.44 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.500000000000e+01, best bound 6.500000000000e+01, gap 0.0%