Instance: rand-2-40-16-250-350-60_ext
Number of variables: 40
Number of constraints: 250
Satisfiable: None
Timestamp: 2017-10-27 10:56:55
Stampede: v1.0.0-797-g05e223c
Boost: 1.64.0
Benchmark comments

Instance comments



Component #1 Number of variables: 40
Number of constraints: 250
General features
Number of coarse blocks: 8,000
Number of unique subscopes: 40
Feature min max mean median sum prod ln(prod) std_dev COV ENT
Arity 2 2 2.00 2.00 500 MAX VALUE 173.29 0.00 0.00 0.00
Coarse blocks size 2 16 10.35 10.00 82,782 MAX VALUE 18,541.60 1.94 0.19 2.08
Relational linkage 0.12 0.69 0.44 0.44 282.62 0.00 -533.32 0.07 0.17 1.58
Tightness 0.27 0.44 0.35 0.36 88.32 0.00 -261.12 0.03 0.09 3.41
Tuples 143 187 165.56 165.00 41,391 MAX VALUE 1,277.05 8.00 0.05 3.41
Domain size 16 16 16.00 16.00 640 MAX VALUE 110.90 0.00 0.00 0.00
Constraints per subscope 6 18 12.50 12.50 500 MAX VALUE 99.99 2.67 0.21 2.26
Partitions per subscope 16 16 16.00 16.00 640 MAX VALUE 110.90 0.00 0.00 0.00
Tree decomposition
Number of clusters: 17
Number of leaves: 9
Tree depth: 3
Dot-file path: None
PDF-file path: None
Feature min max mean median sum prod ln(prod) std_dev COV ENT
Cluster constraints 9 100 44.06 36.00 749 1.80e+26 60.46 29.21 0.66 2.75
Cluster variables 7 24 14.65 13.00 249 1.95e+19 44.42 5.53 0.38 2.39
Separator constraints 0 87 29.35 19.00 499 0 None 26.31 0.90 2.59
Separator variables 0 23 12.29 12.00 209 0 None 5.88 0.48 2.51
Dual tree decomposition
Number of clusters: 38
Number of leaves: 18
Tree depth: 5
Dot-file path: None
PDF-file path: None
Feature min max mean median sum prod ln(prod) std_dev COV ENT
Cluster constraints 52 890 272.53 209.00 10,356 MAX VALUE 204.45 202.22 0.74 3.60
Cluster variables 14 134 43.37 30.50 1,648 MAX VALUE 136.31 29.84 0.69 3.33
Separator constraints 0 517 193.10 173.50 7,338 0 None 119.52 0.62 3.60
Separator variables 0 105 36.79 29.00 1,398 0 None 22.73 0.62 3.30
Primal graph
Density: 32.05%
Dot-file path: None
PDF-file path: None
Feature min max mean median sum prod ln(prod) std_dev COV ENT
Clustering coefficient 0.20 0.44 0.32 0.31 12.76 0.00 -46.24 0.05 0.16 3.40
Degree 6 18 12.50 12.50 500 MAX VALUE 99.99 2.67 0.21 2.26
Eccentricity 2 3 2.08 2.00 83 3.71e+12 28.94 0.26 0.13 0.27
Triangulated primal graph
Density: 62.18%
Feature min max mean median sum prod ln(prod) std_dev COV ENT
Clustering coefficient 0.70 1.00 0.86 0.84 34.36 0.00 -6.34 0.10 0.11 3.13
Degree 6 35 24.25 29.50 970 MAX VALUE 123.08 9.40 0.39 2.88
Eccentricity 2 3 2.08 2.00 83 3.71e+12 28.94 0.26 0.13 0.27
Dual graph
Density: 9.70%
MCB compute time (ms): 2,841
MCB cycles: 3,069
Triangles: 11,978
Dot-file path: None
PDF-file path: None

Feature min max mean median sum prod ln(prod) std_dev COV ENT
Clustering coefficient 0.48 0.61 0.51 0.50 126.40 0.00 -170.69 0.02 0.04 4.47
Degree 13 32 24.14 24.00 6,036 MAX VALUE 793.41 3.36 0.14 2.59
Eccentricity 3 3 3.00 3.00 750 MAX VALUE 274.65 0.00 0.00 0.00
MCB cycle size 3 4 3.05 3.00 9,375 MAX VALUE 3,419.97 0.23 0.07 0.21
Minimal dual graph
Density: 1.48%
MCB compute time (ms): 362
MCB cycles: 211
Feature min max mean median sum prod ln(prod) std_dev COV ENT
Clustering coefficient 0.00 0.00 0.00 0.00 0.00 0.00 None 0.00 None 0.00
Degree 2 6 3.68 4.00 920 MAX VALUE 320.14 0.79 0.21 1.14
Eccentricity 6 9 7.32 7.00 1,831 MAX VALUE 497.06 0.56 0.08 0.84
MCB cycle size 4 9 6.80 7.00 1,434 MAX VALUE 401.16 1.12 0.17 1.49
Triangulated dual graph
Density: 54.60%
Triangles: 740,452
Feature min max mean median sum prod ln(prod) std_dev COV ENT
Clustering coefficient 0.75 1.00 0.85 0.84 213.68 0.00 -40.05 0.07 0.08 4.71
Degree 13 198 135.94 159.50 33,986 MAX VALUE 1,185.72 59.25 0.44 3.86
Eccentricity 2 3 2.18 2.00 546 MAX VALUE 191.94 0.39 0.18 0.48
Triangulated minimal dual graph
Density: 11.01%
Feature min max mean median sum prod ln(prod) std_dev COV ENT
Clustering coefficient 0.50 1.00 0.81 0.77 203.75 0.00 -55.11 0.15 0.18 3.44
Degree 2 87 27.41 7.00 6,852 MAX VALUE 620.44 32.05 1.17 3.17
Eccentricity 3 5 3.70 4.00 924 MAX VALUE 324.26 0.52 0.14 0.75
Incidence graph
Density: 1.19%
MCB compute time (ms): 250
MCB cycles: 211
Dot-file path: None
PDF-file path: None
Feature min max mean median sum prod ln(prod) std_dev COV ENT
Clustering coefficient 0.00 0.00 0.00 0.00 0.00 0.00 None 0.00 None 0.00
Degree 2 18 3.45 2.00 1,000 MAX VALUE 273.27 3.75 1.09 0.71
Eccentricity 5 6 5.87 6.00 1,703 MAX VALUE 512.86 0.33 0.06 0.38
MCB cycle size 6 8 6.03 6.00 1,272 MAX VALUE 378.92 0.24 0.04 0.07