Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:23:13 2012 Optimize a model with 186 rows, 398 columns and 398 nonzeros Model has 370 quadratic constraints Presolve time: 2.15s Presolved: 186 rows, 398 columns, 398 nonzeros Variable types: 370 continuous, 28 integer (28 binary) Root relaxation: objective 0.000000e+00, 14 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 99.0000000 - - - 2s 0 0 0.00000 0 26 99.00000 0.00000 100% - 2s 0 0 0.75000 0 28 99.00000 0.75000 99.2% - 2s 0 0 0.75000 0 28 99.00000 0.75000 99.2% - 2s 0 2 0.75000 0 28 99.00000 0.75000 99.2% - 2s * 38 38 22 77.0000000 7.22500 90.6% 43.7 2s H 197 150 73.0000000 18.08750 75.2% 41.5 2s 1233 465 72.60000 53 206 73.00000 29.25000 59.9% 46.9 5s 5919 1755 cutoff 47 73.00000 44.10000 39.6% 29.4 10s 11062 2620 72.55258 41 235 73.00000 52.14286 28.6% 26.1 15s *15284 2816 48 71.0000000 56.00000 21.1% 24.6 18s 15536 2781 64.11765 39 232 71.00000 56.12500 21.0% 24.6 20s 18046 2461 65.33333 45 230 71.00000 58.60000 17.5% 24.4 25s 23222 1001 cutoff 39 71.00000 64.25000 9.51% 23.8 30s Explored 24714 nodes (576002 simplex iterations) in 31.42 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.100000000000e+01, best bound 7.100000000000e+01, gap 0.0%