Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:54:50 2012 Optimize a model with 193 rows, 467 columns and 467 nonzeros Model has 384 quadratic constraints Presolve time: 2.24s Presolved: 193 rows, 467 columns, 467 nonzeros Variable types: 384 continuous, 83 integer (83 binary) Root relaxation: objective 0.000000e+00, 41 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 93.0000000 - - - 2s 0 0 0.00000 0 62 93.00000 0.00000 100% - 2s 0 0 0.32997 0 83 93.00000 0.32997 100% - 2s 0 2 0.38710 0 83 93.00000 0.38710 100% - 2s H 46 46 47.0000000 4.07843 91.3% 38.0 2s * 46 45 26 45.0000000 4.07843 90.9% 38.6 2s H 162 133 44.0000000 7.00000 84.1% 40.3 2s H 265 198 43.0000000 11.95833 72.2% 40.5 2s 1036 564 29.60563 40 283 43.00000 16.09812 62.6% 41.8 5s * 1077 543 57 42.0000000 16.09812 61.7% 41.2 5s * 2384 961 47 41.0000000 18.26531 55.5% 30.5 6s 3281 1374 39.70312 41 217 41.00000 20.50000 50.0% 28.4 10s 5368 2151 27.92857 34 289 41.00000 22.56000 45.0% 26.1 15s * 5694 2194 48 40.0000000 23.00000 42.5% 25.9 15s 7596 2695 33.60870 45 249 40.00000 24.50000 38.8% 24.9 20s * 9521 2998 47 39.0000000 26.08163 33.1% 24.2 23s 10377 3111 29.27027 37 296 39.00000 26.66667 31.6% 23.9 25s 14036 3422 cutoff 42 39.00000 28.30435 27.4% 22.9 30s 17713 3594 35.50000 46 255 39.00000 29.72222 23.8% 22.3 35s 21516 3573 36.43333 39 267 39.00000 30.95238 20.6% 21.8 40s 23922 3387 37.22951 39 268 39.00000 31.63158 18.9% 21.7 45s *27768 2642 44 38.0000000 32.65217 14.1% 21.5 49s 27799 2636 36.60377 44 244 38.00000 32.66667 14.0% 21.5 50s 29752 1975 35.45205 42 283 38.00000 33.54286 11.7% 21.4 55s Explored 33189 nodes (696967 simplex iterations) in 58.44 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.800000000005e+01, best bound 3.800000000005e+01, gap 0.0%