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Run 1772410040 ​

Trial run

Warning — trial run. This benchmark was executed with fewer than 10 instances per fuzzer and/or a time budget shorter than 24h. Results from trial runs are meant for debugging purposes and are not valid for extracting conclusions across different fuzzers.

Charts ​

Bugs Over TimeTime To KFinal DistributionPlateau And Late ShareInvariant Overlap (UpSet)Coverage Over TimeCorpus Size Over TimeSeq/s Over TimeTx/s Over TimeGas/s Over TimeCPU Usage Over TimeMemory Usage Over Time

Report ​

Fuzzer Benchmark Report (from bug-count CSV) ​

  • Time budget: 2.00h

Warning — trial run. This benchmark was executed with fewer than 10 instances per fuzzer and/or a time budget shorter than 24h. Results from trial runs are meant for debugging purposes and are not valid for extracting conclusions across different fuzzers.

Executive summary ​

This report is derived solely from cumulative bugs-found over time across repeated runs per fuzzer. It emphasizes robust, distribution-based metrics (median/IQR, success rates, time-to-k) and shape-based behavior (plateau time, late discovery share) instead of single-run time-to-first-bug.

Bugs found at fixed time budgets (median [IQR]) ​

FuzzerRuns1h
medusa28 [8,8]
foundry26 [6,7]
echidna14 [4,4]

Overall metrics ​

FuzzerAUC (norm)Plateau timeLate discovery shareFinal medianFinal IQR
medusa0.6811.50h0.200102.00
foundry0.5350.10h0.00060.50
echidna0.3170.10h0.00040.00

Milestones: time-to-k and success rates ​

Fuzzertime-to-1 (p50)time-to-3 (p50)time-to-5 (p50)reach-1 ratereach-3 ratereach-5 rate
medusa0.10h0.10h0.10h100.0%100.0%100.0%
foundry0.00h0.00h0.00h100.0%100.0%100.0%
echidna0.10h0.10hinf100.0%100.0%0.0%

Throughput metrics (if supported by log format) ​

Values are run-level rates aggregated per fuzzer; n/a indicates the parser could not recover that metric from logs.

FuzzerRunsTx/s runsTx/s p50 [p25,p75]Gas/s runsGas/s p50 [p25,p75]
medusa221446.50 [1224.75,1668.25]2642407737.50 [629092766.25,655722708.75]
echidna112361.53 [2361.53,2361.53]113204550717.00 [13204550717.00,13204550717.00]

Progress metrics from logs (fuzzer-specific proxies) ​

Coverage/corpus values are parsed from each fuzzer's native progress output and are useful for trend context, not strict cross-fuzzer equivalence.

FuzzerRunsSeq/s runsSeq/s p50 [p25,p75]Coverage runsCoverage p50 [p25,p75]Corpus runsCorpus p50 [p25,p75]
medusa2213.00 [11.00,15.00]212254.00 [12201.50,12306.50]2568.50 [567.75,569.25]
foundry20n/a24878.50 [4856.75,4900.25]26871.50 [6241.75,7501.25]
echidna10n/a1136277.00 [136277.00,136277.00]1503.00 [503.00,503.00]

Statistical comparison (Mann-Whitney U test) ​

Pairwise Mann-Whitney U tests on end-of-budget bug counts (two-sided). Bonferroni correction applied for 1 comparison(s). Significance level: alpha = 0.05.

Warnings:

  • One or more fuzzers have fewer than 5 runs. Statistical power may be limited.
  • Skipping medusa vs echidna: fewer than 2 runs.
  • Skipping foundry vs echidna: fewer than 2 runs.
Fuzzer AFuzzer BMedian AMedian BU statisticp-valuep (corrected)Significant
medusafoundry106.54.00.33331.0000no

No pairwise comparison reached significance after Bonferroni correction.

Note: The Mann-Whitney U test assesses whether one fuzzer tends to find more bugs than another across runs. It does not measure effect size or practical importance. Small sample sizes (fewer than 5 runs) reduce statistical power.

Shape-based interpretation (rules of thumb) ​

  • Fast-start / early-plateau: high early checkpoint median + early plateau time + low late discovery share.
  • Steady: moderate AUC, later plateau, consistent improvements across checkpoints, moderate variance.
  • Slow-burn / late-surge: low early checkpoints but high late discovery share and later plateau time; often higher final median.

Limitations ​

  • Core metrics in this section are count-based; use broken_invariants.md / broken_invariants.csv for invariant identities.
  • Severity, exploitability, and root-cause uniqueness cannot be measured directly without richer per-bug metadata.
  • Harness design still affects results; mitigate by keeping harness identical across fuzzers and reporting many runs.

Broken invariants ​

  • Budget filter: 2.00h
  • Events considered: 37 / 37
  • Unique invariants: 12

Warning — trial run. This benchmark was executed with fewer than 10 instances per fuzzer and/or a time budget shorter than 24h. Results from trial runs are meant for debugging purposes and are not valid for extracting conclusions across different fuzzers.

Per-fuzzer totals ​

FuzzerInvariants
echidna4
foundry7
medusa12

High-level overlap ​

  • Shared by all active fuzzers: 2
  • Exclusive to echidna: 0
  • Exclusive to foundry: 0
  • Exclusive to medusa: 3

Grouped invariants ​

Exclusive to echidna (0)

None.

Exclusive to foundry (0)

None.

Exclusive to medusa (3)
  • global_previewEquivalenceFromAssets
  • invariant_accumulatorSharesDecreaseOnFulfill_exact
  • invariant_fulfillOnlyBurnsRequestedAmount
Shared by all active fuzzers (2)
  • assert_canary
  • invariant_canary

Top shared subsets (top 2 by size):

foundry, medusa (5)
  • global_comparePreviewMintAndConvertToAssets
  • invariant_erc7540_1
  • invariant_erc7540_2
  • invariant_erc7540_3
  • invariant_maxRedeemMaxWithdrawSymmetry
echidna, medusa (2)
  • doomsday_mintRedeemSymmetrical
  • global_previewEquivalenceFromShares

Runner resource usage ​

  • Budget filter: 2.00h
  • Instances with metrics: 5
  • Total samples: 7143

Per-fuzzer medians (across instances) ​

FuzzerInstancesCPU active avg (%)CPU active peak (%)Memory used avg (GiB)Memory used peak (GiB)Memory used avg (%)Memory used peak (%)
echidna183.9587.563.183.4910.3811.39
foundry298.22100.002.643.038.619.87
medusa296.6799.922.604.048.4913.17

Instance stats ​

InstanceFuzzerSamplesDuration (h)CPU active avg (%)CPU active peak (%)Memory avg (GiB)Memory peak (GiB)Memory avg (%)Memory peak (%)
i-08989e00cb5d3103e-echidna-v2.3.1echidna14312.0083.9587.563.183.4910.3811.39
i-062fec6257016e4b3-foundry-git-3a47949foundry14282.0098.22100.002.552.948.329.61
i-0bb419896f3d641f8-foundry-git-3a47949foundry14282.0098.23100.002.733.118.9110.14
i-0e1c57c4ff266911f-medusa-v1.4.1medusa14282.0096.4499.902.764.259.0013.85
i-0ff42e44db7ee011d-medusa-v1.4.1medusa14282.0096.8999.952.453.837.9812.49

Manifest ​

  • scfuzzbench_commit: 47fa2a5fa52496e9f9f0624c815e878173804289
  • target_repo_url: https://github.com/Recon-Fuzz/superform-v2-periphery-scfuzzbench
  • target_commit: dev-recon
  • benchmark_type: property
  • instance_type: c6a.4xlarge
  • instances_per_fuzzer: 2
  • timeout_hours: 2
  • aws_region: us-east-1
  • ubuntu_ami_id: ami-0071174ad8cbb9e17
  • foundry_version: v1.6.0-rc1
  • foundry_git_repo: https://github.com/aviggiano/foundry
  • foundry_git_ref: master
  • echidna_version: 2.3.1
  • medusa_version: 1.4.1
  • fuzzer_keys: echidna, foundry, medusa

Artifacts ​

Fully static. Generated in CI from S3 run artifacts.