Instance: rand-2-40-16-250-350-76_ext
Number of variables: 40
Number of constraints: 250
Satisfiable: None
Timestamp: 2017-10-27 10:56:59
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 10.41 10.00 83,256 MAX VALUE 18,597.60 1.90 0.18 2.06
Relational linkage 0.25 0.62 0.46 0.44 291.69 0.00 -511.36 0.07 0.16 1.54
Tightness 0.27 0.43 0.35 0.35 87.39 0.00 -263.67 0.03 0.09 3.36
Tuples 145 186 166.51 167.00 41,628 MAX VALUE 1,278.50 7.61 0.05 3.36
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 13.00 500 MAX VALUE 100.20 2.52 0.20 2.17
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: 7
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 12 104 47.75 44.00 764 3.46e+25 58.81 28.77 0.60 2.60
Cluster variables 8 25 15.50 15.50 248 4.11e+18 42.86 5.44 0.35 2.17
Separator constraints 0 92 32.12 25.00 514 0 None 25.74 0.80 2.69
Separator variables 0 24 13.00 12.50 208 0 None 5.91 0.45 2.25
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 67 774 261.58 201.50 9,940 MAX VALUE 203.99 174.15 0.67 3.46
Cluster variables 16 126 42.63 31.00 1,620 MAX VALUE 136.18 27.65 0.65 3.17
Separator constraints 0 416 182.58 163.00 6,938 0 None 100.43 0.55 3.46
Separator variables 0 94 36.05 27.50 1,370 0 None 20.92 0.58 3.24
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 0.18 0.44 0.31 0.31 12.29 0.00 -47.88 0.06 0.18 3.35
Degree 7 19 12.50 13.00 500 MAX VALUE 100.20 2.52 0.20 2.17
Eccentricity 2 3 2.33 2.00 93 2.14e+14 33.00 0.47 0.20 0.63
Triangulated primal graph
Density: 65.13%
Feature min max mean median sum prod ln(prod) std_dev COV ENT
Clustering coefficient 0.75 1.00 0.86 0.84 34.46 0.00 -6.14 0.08 0.10 3.16
Degree 7 34 25.40 30.00 1,016 MAX VALUE 125.62 9.04 0.36 2.43
Eccentricity 2 3 2.15 2.00 86 1.25e+13 30.16 0.36 0.17 0.42
Dual graph
Density: 9.64%
MCB compute time (ms): 1,495
MCB cycles: 3,768
Triangles: 11,862
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 0.58 0.50 0.50 125.81 0.00 -171.80 0.02 0.03 4.43
Degree 15 32 24.02 24.00 6,004 MAX VALUE 791.99 3.47 0.14 2.63
Eccentricity 3 3 3.00 3.00 750 MAX VALUE 274.65 0.00 0.00 0.00
MCB cycle size 3 5 3.21 3.00 12,086 MAX VALUE 4,363.63 0.41 0.13 0.52
Minimal dual graph
Density: 1.48%
MCB compute time (ms): 407
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 319.47 0.84 0.23 1.18
Eccentricity 6 9 7.22 7.00 1,806 MAX VALUE 493.70 0.53 0.07 0.78
MCB cycle size 4 10 6.74 7.00 1,423 MAX VALUE 398.96 1.22 0.18 1.59
Triangulated dual graph
Density: 51.15%
Triangles: 632,228
Feature min max mean median sum prod ln(prod) std_dev COV ENT
Clustering coefficient 0.70 1.00 0.84 0.82 210.27 0.00 -44.51 0.08 0.10 4.83
Degree 15 196 127.36 155.00 31,840 MAX VALUE 1,171.11 56.43 0.44 4.14
Eccentricity 2 3 2.23 2.00 558 MAX VALUE 196.80 0.42 0.19 0.54
Triangulated minimal dual graph
Density: 11.20%
Feature min max mean median sum prod ln(prod) std_dev COV ENT
Clustering coefficient 0.48 1.00 0.81 0.78 203.69 0.00 -55.24 0.15 0.18 3.49
Degree 2 88 27.89 8.00 6,972 MAX VALUE 621.28 32.68 1.17 3.17
Eccentricity 3 6 4.34 4.00 1,084 MAX VALUE 364.20 0.61 0.14 0.91
Incidence graph
Density: 1.19%
MCB compute time (ms): 247
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 273.49 3.74 1.08 0.70
Eccentricity 5 7 5.92 6.00 1,717 MAX VALUE 515.30 0.32 0.05 0.38
MCB cycle size 6 8 6.06 6.00 1,278 MAX VALUE 379.79 0.33 0.05 0.13