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Run 1776020304 ​

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.

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
echidna29 [8,10]10 [9,10]
medusa26 [6,7]8 [7,8]
foundry21 [1,1]1 [1,1]

Overall metrics ​

FuzzerAUC (norm)Plateau timeLate discovery shareFinal medianFinal IQR
echidna0.8633.70h0.053100.50
medusa0.6881.40h0.00081.50
foundry0.1000.00h0.00010.00

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
echidna0.10h0.10h0.15h100.0%100.0%100.0%
medusa0.10h0.10h0.20h100.0%100.0%100.0%
foundry0.00hinfinf100.0%0.0%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]
echidna221995.50 [1983.89,2007.11]219800524300.50 [18981161802.25,20619886798.75]
medusa221340.50 [1293.25,1387.75]2155591125.50 [152329729.25,158852521.75]

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]
echidna20n/a2147520.00 [146841.00,148199.00]2338.00 [335.00,341.00]
medusa2213.50 [13.25,13.75]25026.50 [4960.25,5092.75]2202.50 [201.75,203.25]

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
echidnamedusa9.57.53.50.41421.0000no
echidnafoundry9.514.00.22070.6620no
medusafoundry7.514.00.22070.6620no

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: 36 / 36
  • 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
echidna11
foundry1
medusa9

High-level overlap ​

  • Shared by all active fuzzers: 0
  • Exclusive to echidna: 2
  • Exclusive to foundry: 1
  • Exclusive to medusa: 0

Grouped invariants ​

Exclusive to echidna (2)
  • iSpoke_liquidationCall
  • invariant_supplySharePriceAndDrawnIndexMonotonic
Exclusive to foundry (1)
  • CryticToFoundry
Exclusive to medusa (0)

None.

Shared by all active fuzzers (0)

None.

Top shared subsets (top 1 by size):

echidna, medusa (9)
  • assert_canary
  • iHub_mintFeeShares
  • iSpoke_repay
  • iSpoke_withdraw
  • invariant_canary
  • invariant_shouldNotBecomeLiquidatable
  • invariant_totalBorrowedLessThanSupplied_v0
  • invariant_totalBorrowedLessThanSupplied_v1
  • invariant_totalBorrowedLessThanSupplied_v2

Runner resource usage ​

  • Budget filter: 4.00h
  • Instances with metrics: 6
  • Total samples: 11458

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 (%)
echidna295.6098.4519.0019.3862.0163.25
foundry26.9320.842.943.829.5912.46
medusa298.2399.761.893.756.1712.23

Instance stats ​

InstanceFuzzerSamplesDuration (h)CPU active avg (%)CPU active peak (%)Memory avg (GiB)Memory peak (GiB)Memory avg (%)Memory peak (%)
i-043bdd809fd679bd9-echidna-v2.3.1echidna28504.0095.5798.4819.0019.4062.0063.29
i-0b4530bf00ca0d5db-echidna-v2.3.1echidna28494.0095.6298.4219.0119.3762.0363.21
i-04b3cadeb3c97e4f4-foundry-git-cc6767afoundry240.037.0725.002.933.669.5711.96
i-0b22d237cfd819156-foundry-git-cc6767afoundry250.036.8016.672.953.979.6212.97
i-020988bb807b3fea5-medusa-v1.4.1medusa28554.0098.2699.792.013.666.5511.95
i-0eb3c6aefcd993abf-medusa-v1.4.1medusa28554.0098.2099.741.773.835.7912.51

Manifest ​

  • scfuzzbench_commit: 333ccc3505fc894f506d4dd473e13a90d7631e5c
  • target_repo_url: https://github.com/Recon-Fuzz/aave-v4-scfuzzbench
  • target_commit: v0.5.6-recon
  • benchmark_type: property
  • instance_type: c6a.4xlarge
  • instances_per_fuzzer: 2
  • timeout_hours: 4
  • aws_region: us-east-1
  • ubuntu_ami_id: ami-009d9173b44d0482b
  • foundry_version: v1.6.0-rc1
  • foundry_git_repo: https://github.com/aviggiano/foundry
  • foundry_git_ref: fail_on_assert
  • 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.