Instance: rand-2-40-16-250-350-38_ext
Number of variables: 40
Number of constraints: 250
Satisfiable: None
Timestamp: 2017-10-27 10:57:07
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 4 16 10.40 10.00 83,166 MAX VALUE 18,589.40 1.89 0.18 2.05
Relational linkage 0.25 0.69 0.46 0.44 292.31 0.00 -510.87 0.08 0.16 1.59
Tightness 0.28 0.42 0.35 0.35 87.57 0.00 -263.13 0.03 0.08 3.35
Tuples 148 184 166.33 166.50 41,583 MAX VALUE 1,278.25 7.44 0.04 3.35
Domain size 16 16 16.00 16.00 640 MAX VALUE 110.90 0.00 0.00 0.00
Constraints per subscope 7 19 12.50 12.00 500 MAX VALUE 100.15 2.57 0.21 2.22
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: 16
Number of leaves: 8
Tree depth: 4
Dot-file path: None
PDF-file path: None
Feature min max mean median sum prod ln(prod) std_dev COV ENT
Cluster constraints 14 106 45.62 37.50 730 2.49e+25 58.48 26.24 0.58 2.60
Cluster variables 8 25 14.94 14.00 239 2.28e+18 42.27 5.23 0.35 2.22
Separator constraints 0 73 30.00 22.00 480 0 None 22.29 0.74 2.51
Separator variables 0 21 12.44 11.50 199 0 None 5.56 0.45 2.22
Dual tree decomposition
Number of clusters: 38
Number of leaves: 17
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 73 780 258.50 194.50 9,823 MAX VALUE 204.10 169.00 0.65 3.49
Cluster variables 17 126 42.26 30.50 1,606 MAX VALUE 135.96 27.49 0.65 3.19
Separator constraints 0 421 179.37 159.00 6,816 0 None 96.04 0.54 3.49
Separator variables 0 92 35.68 28.50 1,356 0 None 20.76 0.58 3.19
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 0.21 0.43 0.33 0.32 13.14 0.00 -44.99 0.05 0.15 3.33
Degree 7 19 12.50 12.00 500 MAX VALUE 100.15 2.57 0.21 2.22
Eccentricity 2 3 2.20 2.00 88 2.82e+13 30.97 0.40 0.18 0.50
Triangulated primal graph
Density: 63.97%
Feature min max mean median sum prod ln(prod) std_dev COV ENT
Clustering coefficient 0.69 1.00 0.86 0.84 34.38 0.00 -6.26 0.09 0.10 3.20
Degree 7 36 24.95 29.50 998 MAX VALUE 124.71 9.11 0.37 2.69
Eccentricity 2 3 2.12 2.00 85 8.35e+12 29.75 0.33 0.16 0.38
Dual graph
Density: 9.66%
MCB compute time (ms): 4,301
MCB cycles: 3,029
Triangles: 11,925
Dot-file path: None
PDF-file path: None

Feature min max mean median sum prod ln(prod) std_dev COV ENT
Clustering coefficient 0.47 0.60 0.50 0.50 126.18 0.00 -171.09 0.02 0.04 4.42
Degree 16 35 24.06 24.00 6,014 MAX VALUE 792.42 3.50 0.15 2.63
Eccentricity 3 3 3.00 3.00 750 MAX VALUE 274.65 0.00 0.00 0.00
MCB cycle size 3 4 3.07 3.00 9,298 MAX VALUE 3,388.40 0.25 0.08 0.25
Minimal dual graph
Density: 1.48%
MCB compute time (ms): 235
MCB cycles: 212
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 319.99 0.78 0.21 1.15
Eccentricity 6 9 7.32 7.00 1,830 MAX VALUE 496.92 0.56 0.08 0.84
MCB cycle size 4 9 6.68 7.00 1,417 MAX VALUE 399.15 1.17 0.17 1.52
Triangulated dual graph
Density: 50.74%
Triangles: 628,406
Feature min max mean median sum prod ln(prod) std_dev COV ENT
Clustering coefficient 0.71 1.00 0.84 0.82 210.42 0.00 -44.22 0.08 0.10 4.88
Degree 16 194 126.34 155.00 31,584 MAX VALUE 1,167.24 57.16 0.45 4.09
Eccentricity 2 3 2.22 2.00 554 MAX VALUE 195.18 0.41 0.19 0.52
Triangulated minimal dual graph
Density: 10.94%
Feature min max mean median sum prod ln(prod) std_dev COV ENT
Clustering coefficient 0.45 1.00 0.81 0.77 201.82 0.00 -57.88 0.15 0.19 3.51
Degree 2 90 27.23 7.00 6,808 MAX VALUE 621.66 31.35 1.15 3.35
Eccentricity 3 5 3.76 4.00 941 MAX VALUE 328.76 0.53 0.14 0.79
Incidence graph
Density: 1.19%
MCB compute time (ms): 176
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 19 3.45 2.00 1,000 MAX VALUE 273.44 3.74 1.09 0.71
Eccentricity 5 7 5.90 6.00 1,710 MAX VALUE 514.08 0.33 0.06 0.39
MCB cycle size 6 8 6.05 6.00 1,276 MAX VALUE 379.50 0.30 0.05 0.11