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Run 1771957110 ​

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
foundry26 [6,6]
medusa25 [4,6]
echidna24 [4,4]

Overall metrics ​

FuzzerAUC (norm)Plateau timeLate discovery shareFinal medianFinal IQR
foundry0.9920.10h0.00060.00
medusa0.7830.20h0.00051.00
echidna0.6330.10h0.00040.00

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
foundry0.00h0.00h0.00h100.0%100.0%100.0%
medusa0.10h0.10h0.20h100.0%100.0%50.0%
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]
medusa222023.00 [1846.50,2199.50]21160654417.50 [1109266660.25,1212042174.75]
echidna222430.86 [2421.12,2440.60]221129343519.50 [19770878576.25,22487808462.75]

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]
foundry20n/a25047.50 [5004.25,5090.75]26918.50 [6268.25,7568.75]
medusa2219.50 [17.75,21.25]212469.00 [12465.50,12472.50]2617.50 [616.25,618.75]
echidna20n/a2135757.50 [135689.25,135825.75]2509.50 [504.75,514.25]

Statistical comparison (Mann-Whitney U test) ​

Pairwise Mann-Whitney U tests on end-of-budget bug counts (two-sided). Bonferroni correction applied for 3 comparison(s). Significance level: alpha = 0.05.

Warnings:

  • One or more fuzzers have fewer than 5 runs. Statistical power may be limited.
Fuzzer AFuzzer BMedian AMedian BU statisticp-valuep (corrected)Significant
foundrymedusa653.00.61711.0000no
foundryechidna644.00.19390.5818no
medusaechidna543.00.61711.0000no

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: 30 / 30
  • Unique invariants: 10

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
foundry6
medusa6

High-level overlap ​

  • Shared by all active fuzzers: 2
  • Exclusive to echidna: 0
  • Exclusive to foundry: 4
  • Exclusive to medusa: 2

Grouped invariants ​

Exclusive to echidna (0)

None.

Exclusive to foundry (4)
  • invariant_erc7540_1
  • invariant_erc7540_2
  • invariant_erc7540_3
  • invariant_maxRedeemMaxWithdrawSymmetry
Exclusive to medusa (2)
  • global_comparePreviewMintAndConvertToAssets
  • global_previewEquivalenceFromAssets
Shared by all active fuzzers (2)
  • assert_canary
  • invariant_canary

Top shared subsets (top 1 by size):

echidna, medusa (2)
  • doomsday_mintRedeemSymmetrical
  • global_previewEquivalenceFromShares

Runner resource usage ​

  • Budget filter: 2.00h
  • Instances with metrics: 6
  • Total samples: 8575

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 (%)
echidna284.0587.873.173.5210.3611.48
foundry298.22100.002.793.309.0910.76
medusa296.2699.972.533.758.2412.24

Instance stats ​

InstanceFuzzerSamplesDuration (h)CPU active avg (%)CPU active peak (%)Memory avg (GiB)Memory peak (GiB)Memory avg (%)Memory peak (%)
i-07171bee4c34111a8-echidna-v2.3.1echidna14312.0084.0887.823.173.5010.3411.42
i-073a4da16052928d5-echidna-v2.3.1echidna14322.0084.0187.923.183.5410.3811.54
i-03839e1e82bb710fb-foundry-git-3a47949foundry14282.0098.22100.003.133.8010.2212.41
i-08d7c94e93da3e6e4-foundry-git-3a47949foundry14282.0098.22100.002.442.797.979.10
i-09c00525b7ee6d8ff-medusa-v1.4.1medusa14282.0096.2299.962.393.547.8011.54
i-0f8a429e9cc3e914a-medusa-v1.4.1medusa14282.0096.2999.982.663.968.6812.93

Manifest ​

  • scfuzzbench_commit: a97481f76c325452cc6361412f1f5997fe18da7a
  • 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.