Instance: rand-2-40-16-250-350-82_ext
Number of variables: 40
Number of constraints: 250
Satisfiable: None
Timestamp: 2017-10-27 10:57:06
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 10.42 11.00 83,386 MAX VALUE 18,604.80 1.92 0.18 2.06
Relational linkage 0.12 0.62 0.45 0.44 286.69 0.00 -524.47 0.08 0.17 1.60
Tightness 0.28 0.41 0.35 0.35 87.14 0.00 -264.32 0.03 0.08 3.30
Tuples 150 184 166.77 166.00 41,693 MAX VALUE 1,278.92 7.19 0.04 3.30
Domain size 16 16 16.00 16.00 640 MAX VALUE 110.90 0.00 0.00 0.00
Constraints per subscope 7 18 12.50 13.00 500 MAX VALUE 100.27 2.38 0.19 2.08
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: 7
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 15 99 55.06 44.00 936 1.39e+28 64.80 31.61 0.57 2.75
Cluster variables 8 24 16.53 16.00 281 1.61e+20 46.53 5.84 0.35 2.34
Separator constraints 0 90 40.35 31.00 686 0 None 31.54 0.78 2.75
Separator variables 0 23 14.18 14.00 241 0 None 6.57 0.46 2.48
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 75 750 258.03 197.50 9,805 MAX VALUE 204.12 166.00 0.64 3.60
Cluster variables 17 126 42.29 30.50 1,607 MAX VALUE 136.12 27.05 0.64 3.31
Separator constraints 0 427 179.40 155.00 6,817 0 None 94.39 0.53 3.60
Separator variables 0 94 35.71 28.00 1,357 0 None 20.35 0.57 3.13
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 0.47 0.32 0.32 12.95 0.00 -45.57 0.05 0.15 3.38
Degree 7 18 12.50 13.00 500 MAX VALUE 100.27 2.38 0.19 2.08
Eccentricity 2 3 2.15 2.00 86 1.25e+13 30.16 0.36 0.17 0.42
Triangulated primal graph
Density: 66.28%
Feature min max mean median sum prod ln(prod) std_dev COV ENT
Clustering coefficient 0.72 1.00 0.87 0.85 34.65 0.00 -5.92 0.08 0.09 3.20
Degree 7 36 25.85 30.00 1,034 MAX VALUE 126.40 9.03 0.35 2.89
Eccentricity 2 3 2.05 2.00 82 2.47e+12 28.54 0.22 0.11 0.20
Dual graph
Density: 9.60%
MCB compute time (ms): 3,222
MCB cycles: 3,051
Triangles: 11,685
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 0.62 0.50 0.50 125.64 0.00 -172.13 0.02 0.03 4.29
Degree 16 33 23.90 24.00 5,976 MAX VALUE 791.15 3.24 0.14 2.57
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 9,368 MAX VALUE 3,413.72 0.26 0.08 0.25
Minimal dual graph
Density: 1.48%
MCB compute time (ms): 311
MCB cycles: 211
Feature min max mean median sum prod ln(prod) std_dev COV ENT
Clustering coefficient 0.00 0.33 0.00 0.00 0.53 0.00 None 0.02 10.69 0.07
Degree 2 6 3.68 4.00 920 MAX VALUE 319.81 0.80 0.22 1.16
Eccentricity 6 9 7.27 7.00 1,817 MAX VALUE 495.10 0.57 0.08 0.85
MCB cycle size 3 9 6.66 7.00 1,405 MAX VALUE 396.31 1.18 0.18 1.54
Triangulated dual graph
Density: 50.31%
Triangles: 614,211
Feature min max mean median sum prod ln(prod) std_dev COV ENT
Clustering coefficient 0.71 1.00 0.84 0.82 209.93 0.00 -44.92 0.08 0.10 4.78
Degree 16 191 125.27 159.00 31,318 MAX VALUE 1,166.17 56.55 0.45 3.97
Eccentricity 2 3 2.26 2.00 564 MAX VALUE 199.24 0.44 0.19 0.57
Triangulated minimal dual graph
Density: 10.97%
Feature min max mean median sum prod ln(prod) std_dev COV ENT
Clustering coefficient 0.50 1.00 0.81 0.76 202.67 0.00 -56.52 0.15 0.18 3.48
Degree 2 88 27.32 7.00 6,830 MAX VALUE 621.89 31.77 1.16 3.24
Eccentricity 3 5 3.71 4.00 928 MAX VALUE 325.54 0.50 0.13 0.71
Incidence graph
Density: 1.19%
MCB compute time (ms): 253
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 273.55 3.73 1.08 0.69
Eccentricity 5 7 5.89 6.00 1,708 MAX VALUE 513.72 0.33 0.06 0.40
MCB cycle size 6 8 6.02 6.00 1,270 MAX VALUE 378.64 0.19 0.03 0.05