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Run 1771869505 ​

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: 4.00h

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.

⚠️ Run health ​

The following fuzzer legs show signs of not having run for the full time budget. Their results below are not comparable to healthy legs.

  • ⚠️ foundry: last parsed activity at 1.41h of a 4.00h budget across 2 instance(s) — the leg likely terminated early. Inspect the instance logs.

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]) ​

FuzzerRuns1h4h
foundry26 [6,6]6 [6,6]
medusa26 [6,6]6 [6,7]
echidna24 [4,4]5 [5,5]

Overall metrics ​

FuzzerAUC (norm)Plateau timeLate discovery shareFinal medianFinal IQR
foundry0.8540.10h0.00060.00
medusa0.8452.30h0.07760.50
echidna0.5983.80h0.10050.00

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%
medusa0.10h0.10h0.40h100.0%100.0%100.0%
echidna0.10h0.10h2.85h100.0%100.0%100.0%

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]
medusa221933.00 [1923.50,1942.50]21114569135.50 [1096506313.25,1132631957.75]
echidna222458.18 [2437.42,2478.93]218026993493.50 [18010400475.75,18043586511.25]

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/a24838.50 [4827.75,4849.25]24718.50 [3973.25,5463.75]
medusa2218.50 [18.25,18.75]212598.50 [12531.25,12665.75]2627.00 [625.00,629.00]
echidna20n/a2137837.00 [137775.50,137898.50]2545.50 [544.75,546.25]

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
foundrymedusa66.51.00.61711.0000no
foundryechidna654.00.19390.5818no
medusaechidna6.554.00.22070.6620no

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: 4.00h
  • Events considered: 35 / 35
  • Unique invariants: 13

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
echidna5
foundry6
medusa7

High-level overlap ​

  • Shared by all active fuzzers: 1
  • Exclusive to echidna: 1
  • Exclusive to foundry: 5
  • Exclusive to medusa: 3

Grouped invariants ​

Exclusive to echidna (1)
  • doomsday_depositWithdrawSymmetrical
Exclusive to foundry (5)
  • CANARY
  • invariant_erc7540_1
  • invariant_erc7540_2
  • invariant_erc7540_3
  • invariant_maxRedeemMaxWithdrawSymmetry
Exclusive to medusa (3)
  • global_comparePreviewMintAndConvertToAssets
  • global_previewEquivalenceFromAssets
  • invariant_accumulatorSharesDecreaseOnFulfill_exact
Shared by all active fuzzers (1)
  • invariant_canary

Top shared subsets (top 1 by size):

echidna, medusa (3)
  • assert_canary
  • doomsday_mintRedeemSymmetrical
  • global_previewEquivalenceFromShares

Runner resource usage ​

  • Budget filter: 4.00h
  • Instances with metrics: 6
  • Total samples: 17146

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 (%)
echidna284.8888.663.474.0811.3413.32
foundry298.99100.002.402.887.829.40
medusa297.9199.972.744.018.9313.09

Instance stats ​

InstanceFuzzerSamplesDuration (h)CPU active avg (%)CPU active peak (%)Memory avg (GiB)Memory peak (GiB)Memory avg (%)Memory peak (%)
i-00ffabbea0ea448f7-echidna-v2.3.1echidna28624.0084.8289.433.484.1111.3713.41
i-022714dfbecad24c6-echidna-v2.3.1echidna28624.0084.9387.903.464.0511.3013.23
i-04db4e8b54a70bdf1-foundry-git-3a47949foundry28554.0098.87100.002.012.826.559.22
i-05f5e1d94c5f2520d-foundry-git-3a47949foundry28554.0099.10100.002.792.939.099.57
i-0428d439b19023090-medusa-v1.4.1medusa28564.0097.8499.982.924.259.5313.87
i-08cd3315f936026cf-medusa-v1.4.1medusa28564.0097.9999.952.553.778.3312.32

Manifest ​

  • scfuzzbench_commit: 6e3285560391e0afa40031de81ed1baf89894883
  • 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: 4
  • 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.