Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:54:40 2012 Optimize a model with 178 rows, 416 columns and 416 nonzeros Model has 354 quadratic constraints Presolve time: 2.06s Presolved: 178 rows, 416 columns, 416 nonzeros Variable types: 354 continuous, 62 integer (62 binary) Root relaxation: objective 0.000000e+00, 31 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 102.0000000 - - - 2s 0 0 0.00000 0 38 102.00000 0.00000 100% - 2s 0 0 0.23077 0 58 102.00000 0.23077 100% - 2s 0 2 0.24819 0 58 102.00000 0.24819 100% - 2s H 8 8 89.0000000 5.16667 94.2% 60.5 2s H 54 54 54.0000000 5.16667 90.4% 36.2 2s * 59 59 31 50.0000000 5.16667 89.7% 34.6 2s H 135 109 46.0000000 6.78571 85.2% 36.7 2s * 526 322 18 45.0000000 12.13636 73.0% 38.3 2s 1305 609 28.78182 43 242 45.00000 15.64286 65.2% 40.4 5s H 5014 1978 44.0000000 26.62162 39.5% 24.4 8s 6010 2294 34.96000 32 237 44.00000 27.80000 36.8% 23.4 10s * 6750 2422 47 43.0000000 28.44444 33.9% 22.8 10s 7469 2599 37.40385 32 246 43.00000 29.00000 32.6% 22.3 15s 11123 3243 37.53846 35 256 43.00000 31.25000 27.3% 20.7 20s 16030 3712 35.28846 36 263 43.00000 33.35484 22.4% 19.5 25s 21012 3771 39.76471 36 252 43.00000 35.00000 18.6% 18.8 30s 26209 3315 39.10204 40 246 43.00000 36.58065 14.9% 18.3 35s 31445 1591 cutoff 41 43.00000 38.80000 9.77% 18.3 40s Explored 33911 nodes (609509 simplex iterations) in 41.87 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.300000000005e+01, best bound 4.300000000005e+01, gap 0.0%