Run gh-30059118265-1

• Date (UTC): 2026-07-24 01:30:15Z
• Benchmark: a0a57a3e0b5b533094f20079e9a9b7ef
• Timeout: 4h
• Target: scfuzzbench/aave-v4-scfuzzbench @ edd6c82721
• Benchmark type: property
• Instances: 2 × c6a.4xlarge per fuzzer
• Harness: scfuzzbench/scfuzzbench@00775ce0bd

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

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])

Fuzzer	Runs	1h	4h
recon-fuzzer	2	12 [11,12]	12 [11,12]
echidna	2	10 [9,10]	10 [10,10]
medusa	2	6 [5,6]	7 [6,8]
foundry	2	6 [6,7]	6 [6,7]

Overall metrics

Fuzzer	AUC (norm)	Plateau time	Late discovery share	Final median	Final IQR
recon-fuzzer	0.908	0.80h	0.000	12	0.50
echidna	0.768	1.30h	0.000	10	1.00
medusa	0.477	3.50h	0.071	7	1.00
foundry	0.526	0.30h	0.000	6	0.50

Milestones: time-to-k and success rates

Fuzzer	time-to-1 (p50)	time-to-3 (p50)	time-to-5 (p50)	reach-1 rate	reach-3 rate	reach-5 rate
recon-fuzzer	0.00h	0.10h	0.10h	100.0%	100.0%	100.0%
echidna	0.10h	0.10h	0.10h	100.0%	100.0%	100.0%
medusa	0.00h	0.10h	0.70h	100.0%	100.0%	100.0%
foundry	0.00h	0.10h	0.10h	100.0%	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.

Fuzzer	Runs	Tx/s runs	Tx/s p50 [p25,p75]	Gas/s runs	Gas/s p50 [p25,p75]
recon-fuzzer	2	2	30092.26 [29865.29,30319.22]	2	4311456929.00 [4292418785.00,4330495073.00]
echidna	2	2	1681.04 [1678.31,1683.77]	2	16184719816.00 [15275081743.50,17094357888.50]
medusa	2	2	1214.00 [1205.50,1222.50]	2	140092861.50 [140017351.25,140168371.75]
foundry	2	2	8730.08 [7265.51,10194.66]	2	7081539689.95 [6703134535.82,7459944844.09]

Progress metrics from logs (fuzzer-specific proxies)

Sequence-rate and corpus values are parsed from native progress output and are useful for within-tool trend context.

Fuzzer	Runs	Seq/s runs	Seq/s p50 [p25,p75]	Corpus runs	Corpus p50 [p25,p75]
recon-fuzzer	2	0	n/a	2	93.50 [92.75,94.25]
echidna	2	0	n/a	2	101.50 [99.75,103.25]
medusa	2	2	12.00 [12.00,12.00]	2	230.50 [229.25,231.75]
foundry	2	0	n/a	2	0.00 [0.00,0.00]

Function selector sanity checks

Counts are occurrences in unique saved corpus sequences, not runtime execution frequencies The complete per-instance distribution is in selector_distribution.csv; selector_summary.json preserves statuses and provenance.

• Expected-set status: available (23 selector(s))
• Expected-set provenance: peer-consensus heuristic: observed in every available corpus for at least two independent evidence families (Echidna and Recon count as one related typed-corpus family); not benchmark ground truth

Fuzzer	Status	Instances with telemetry	Saved-corpus calls	Unique selectors
echidna	available	2/2	20246	44
foundry	unavailable	0/2	0	0
medusa	available	2/2	22182	66
recon-fuzzer	available	2/2	18616	32

Most common saved-corpus selectors

Fuzzer	Selector	Function	Calls	Share
echidna	0x20bea9dd	iHub_mintFeeShares_ASSERTION_MINT_FEE_SHARES_PPS_CHANGE(uint256)	871	4.30%
echidna	0x5c9d5cb7	iSpoke_supply_ASSERTION_SUPPLY_DOS(uint256,uint256)	815	4.03%
echidna	0x5d55852e	iSpoke_addDynamicReserveConfig(uint256,(uint16,uint32,uint16))	809	4.00%
echidna	0xbb1b32f0	invariant_totalBorrowedLessThanSupplied_v1()	783	3.87%
echidna	0xca2664f9	iSpoke_setUsingAsCollateral(uint256,bool)	733	3.62%
echidna	0x6801b82e	switchActor(uint256)	721	3.56%
echidna	0x77494a8e	invariant_hubAddedSharesMatchesSpokeSum()	679	3.35%
echidna	0x25a00713	invariant_shouldNotBecomeLiquidatable()	675	3.33%
echidna	0x5b00e9f0	iSpoke_updateUserRiskPremium()	675	3.33%
echidna	0x27dd847c	iSpoke_liquidationCall_ASSERTION_LIQUIDATION_CALL_DOS(uint256,uint256,uint256,uint256,bool)	671	3.31%
medusa	0xb722c6ed	iHub_updateAssetConfig(uint256,(address,uint16,address,address),(uint16,uint32,uint32,uint32))	1215	5.48%
medusa	0x5d55852e	iSpoke_addDynamicReserveConfig(uint256,(uint16,uint32,uint16))	1075	4.85%
medusa	0xf24a44c9	assert_canary_ASSERTION_CANARY(uint256)	1052	4.74%
medusa	0x5c9d5cb7	iSpoke_supply_ASSERTION_SUPPLY_DOS(uint256,uint256)	1020	4.60%
medusa	0xca2664f9	iSpoke_setUsingAsCollateral(uint256,bool)	1015	4.58%
medusa	0x4b430dd2	iSpoke_updateDynamicReserveConfig(uint256,uint24,(uint16,uint32,uint16))	1010	4.55%
medusa	0x1be3427b	switch_spoke(uint256)	982	4.43%
medusa	0xdfbe4d80	iSpoke_repay_ASSERTION_REPAY_DOS(uint256,uint256)	974	4.39%
medusa	0x20bea9dd	iHub_mintFeeShares_ASSERTION_MINT_FEE_SHARES_PPS_CHANGE(uint256)	969	4.37%
medusa	0xf9f2ec54	iSpoke_borrow(uint256,uint256)	961	4.33%
recon-fuzzer	0xca2664f9	iSpoke_setUsingAsCollateral(uint256,bool)	747	4.01%
recon-fuzzer	0x8aa3bc37	switch_oracle(uint256)	689	3.70%
recon-fuzzer	0x6801b82e	switchActor(uint256)	687	3.69%
recon-fuzzer	0x27dd847c	iSpoke_liquidationCall_ASSERTION_LIQUIDATION_CALL_DOS(uint256,uint256,uint256,uint256,bool)	670	3.60%
recon-fuzzer	0x25a00713	invariant_shouldNotBecomeLiquidatable()	665	3.57%
recon-fuzzer	0xf9f2ec54	iSpoke_borrow(uint256,uint256)	665	3.57%
recon-fuzzer	0x77494a8e	invariant_hubAddedSharesMatchesSpokeSum()	645	3.46%
recon-fuzzer	0xd3fabfac	iSpoke_withdraw_ASSERTION_WITHDRAW_DOS(uint256,uint256)	642	3.45%
recon-fuzzer	0x4896f9c3	iHub_updateSpokeConfig(uint256,uint256,(uint40,uint40,uint24,bool,bool))	639	3.43%
recon-fuzzer	0x44a0611b	iHub_setInterestRateData(uint256,(uint16,uint32,uint32,uint32))	633	3.40%

Selector diagnostic findings

• INFO: i-034cb6720a6436703-recon-v0.4.18: peer-heuristic gap (diagnostic, not ground truth): absent 1 selector(s): 0xb0464fdc
• INFO: i-0ed8d9bccde77b824-recon-v0.4.18: peer-heuristic gap (diagnostic, not ground truth): absent 1 selector(s): 0xb0464fdc

Selector telemetry limitations

• i-01db3533f5c6c560f-foundry-git-02c05d9: Foundry selector distribution is unavailable because no persisted corpus was present; failure-event selectors are intentionally not used as a distribution
• i-0467b881cc0070621-foundry-git-02c05d9: Foundry selector distribution is unavailable because no persisted corpus was present; failure-event selectors are intentionally not used as a distribution

Statistical comparison (Mann-Whitney U and Vargha-Delaney A12)

Pairwise Mann-Whitney U tests and Vargha-Delaney A12 effect sizes on end-of-budget bug counts. The tests are two-sided, with Bonferroni correction applied for 6 comparison(s). Significance level: alpha = 0.05.

Warnings:

• One or more fuzzers have fewer than 5 runs. Statistical power may be limited.

Fuzzer A	Fuzzer B	Median A	Median B	U statistic	A12 (A over B)	Effect magnitude	p-value	p (corrected)	Significant
recon-fuzzer	echidna	11.5	10	3.5	0.875	large	0.4142	1.0000	no
recon-fuzzer	medusa	11.5	7	4.0	1.000	large	0.3333	1.0000	no
recon-fuzzer	foundry	11.5	6.5	4.0	1.000	large	0.3333	1.0000	no
echidna	medusa	10	7	4.0	1.000	large	0.3333	1.0000	no
echidna	foundry	10	6.5	4.0	1.000	large	0.3333	1.0000	no
medusa	foundry	7	6.5	2.5	0.625	small	1.0000	1.0000	no

No pairwise comparison reached significance after Bonferroni correction.

Note: A12 is the probability that a randomly selected Fuzzer A run has a higher final bug count than a randomly selected Fuzzer B run, counting ties as half. Values above 0.5 favor A, values below 0.5 favor B, and 0.5 means equal tendency. Magnitude thresholds by distance from 0.5 are negligible (<0.06), small (<0.14), medium (<0.21), and large (>=0.21). Small sample sizes (fewer than 5 runs) reduce statistical power. A12 and its magnitude label are descriptive; the thresholds are rules of thumb. Neither the effect size nor statistical significance establishes practical importance, causation, or performance beyond the observed runs.

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 count-based charts use normalized event identities stored under the legacy bugs_found column. They do not count crash inputs, but they are not confirmed root-cause bug counts.
• Use known_bug_report.md, known_bug_summary.csv, and known_bug_findings.csv for evidence-backed known-bug hit rates; use broken_invariants.md / broken_invariants.csv for raw 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: 70 / 70
• 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

Fuzzer	Invariants
echidna	11
foundry	7
medusa	9
recon-fuzzer	12

High-level overlap

• Shared by all active fuzzers: 6
• Exclusive to echidna: 0
• Exclusive to foundry: 0
• Exclusive to medusa: 0
• Exclusive to recon-fuzzer: 1

Grouped invariants

Exclusive to echidna (0)

None.

Exclusive to foundry (0)

None.

Exclusive to medusa (0)

None.

Exclusive to recon-fuzzer (1)

• iSpoke_supply

Shared by all active fuzzers (6)

• assert_canary
• iHub_mintFeeShares
• invariant_canary
• invariant_shouldNotBecomeLiquidatable
• invariant_totalBorrowedLessThanSupplied_v0
• invariant_totalBorrowedLessThanSupplied_v1

Top shared subsets (top 3 by size):

echidna, medusa, recon-fuzzer (3)

• iSpoke_liquidationCall
• iSpoke_repay
• iSpoke_withdraw

echidna, foundry, recon-fuzzer (1)

• invariant_totalBorrowedLessThanSupplied_v2

echidna, recon-fuzzer (1)

• invariant_supplySharePriceAndDrawnIndexMonotonic

Ground-truth known-bug mapping

Ground-truth mapping was not applied.

• Reason: run commit edd6c82721512540c8c90e7a36a4a8e19fd7bdf3 is not the evidence-pinned catalog revision 459b020058f4a65d18eb1481083b75c766340124
• Catalog: benchmarks/known_bugs.json

No event was classified as a known bug. Raw event analysis remains available, but it must not be interpreted as a confirmed bug count.

Runner resource usage

• Budget filter: 4.00h
• Instances with metrics: 8
• Total samples: 22394

Per-fuzzer medians (across instances)

Fuzzer	Instances	CPU active avg (%)	CPU active peak (%)	Memory used avg (GiB)	Memory used peak (GiB)	Memory used avg (%)	Memory used peak (%)
echidna	2	94.99	97.65	19.16	19.76	62.53	64.47
foundry	2	99.15	100.00	1.05	3.79	3.41	12.35
medusa	2	98.10	99.64	1.55	3.76	5.07	12.27
recon-fuzzer	2	98.27	100.00	4.17	6.20	13.61	20.23

Instance stats

Instance	Fuzzer	Samples	Duration (h)	CPU active avg (%)	CPU active peak (%)	Memory avg (GiB)	Memory peak (GiB)	Memory avg (%)	Memory peak (%)
i-01c1f3bff75608e5e-echidna-v2.3.2	echidna	2783	4.00	94.71	97.43	19.26	19.97	62.84	65.15
i-024af362fccb49540-echidna-v2.3.2	echidna	2783	4.00	95.26	97.86	19.07	19.55	62.22	63.78
i-01db3533f5c6c560f-foundry-git-02c05d9	foundry	2809	4.00	99.14	100.00	1.05	3.86	3.42	12.61
i-0467b881cc0070621-foundry-git-02c05d9	foundry	2809	4.00	99.16	100.00	1.04	3.71	3.41	12.09
i-05df0296ef97b51ba-medusa-v1.5.1	medusa	2807	4.00	98.10	99.63	1.55	3.75	5.07	12.23
i-0ebbecf47656b1194-medusa-v1.5.1	medusa	2808	4.00	98.11	99.65	1.55	3.77	5.07	12.32
i-034cb6720a6436703-recon-v0.4.18	recon-fuzzer	2798	4.00	98.27	100.00	4.17	6.26	13.62	20.42
i-0ed8d9bccde77b824-recon-v0.4.18	recon-fuzzer	2797	4.00	98.27	100.00	4.17	6.14	13.59	20.04

Manifest

• scfuzzbench_commit: 00775ce0bd3a33b7bf8e9ff213e2e7c235163220
• target_repo_url: https://github.com/scfuzzbench/aave-v4-scfuzzbench
• target_commit: edd6c82721512540c8c90e7a36a4a8e19fd7bdf3
• benchmark_type: property
• instance_type: c6a.4xlarge
• instances_per_fuzzer: 2
• timeout_hours: 4
• aws_region: us-east-1
• ubuntu_ami_id: ami-052355af2a014bd2c
• foundry_version: 1.7.2-dev
• foundry_git_repo: https://github.com/foundry-rs/foundry
• foundry_git_ref: 02c05d970d2801da0aef8b82486ce84b01ede36d
• foundry_source_patch: scfuzzbench-throughput-progress-v1@sha256:2ee9e69b77c8007c78c816eb9ca791684aa5ecede0651b63f86cdd2e055eb17e
• echidna_version: 2.3.2
• medusa_version: 1.5.1
• recon_version: 0.4.18
• fuzzer_keys: echidna, foundry, medusa, recon-fuzzer

Artifacts

• Manifest (index): https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/runs/gh-30059118265-1/a0a57a3e0b5b533094f20079e9a9b7ef/manifest.json

• Report prefix: https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/a0a57a3e0b5b533094f20079e9a9b7ef/gh-30059118265-1/

• Broken invariants (Markdown): https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/a0a57a3e0b5b533094f20079e9a9b7ef/gh-30059118265-1/broken_invariants.md

• Broken invariants (CSV): https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/a0a57a3e0b5b533094f20079e9a9b7ef/gh-30059118265-1/broken_invariants.csv

• Ground-truth known bugs (Markdown): https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/a0a57a3e0b5b533094f20079e9a9b7ef/gh-30059118265-1/known_bug_report.md

• Ground-truth summary (CSV): https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/a0a57a3e0b5b533094f20079e9a9b7ef/gh-30059118265-1/known_bug_summary.csv

• Ground-truth findings (CSV): https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/a0a57a3e0b5b533094f20079e9a9b7ef/gh-30059118265-1/known_bug_findings.csv

• Throughput summary (CSV): https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/a0a57a3e0b5b533094f20079e9a9b7ef/gh-30059118265-1/throughput_summary.csv

• Progress metrics summary (CSV): https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/a0a57a3e0b5b533094f20079e9a9b7ef/gh-30059118265-1/progress_metrics_summary.csv

• Function selector distribution (CSV): https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/a0a57a3e0b5b533094f20079e9a9b7ef/gh-30059118265-1/selector_distribution.csv

• Function selector summary and health (JSON): https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/a0a57a3e0b5b533094f20079e9a9b7ef/gh-30059118265-1/selector_summary.json

• Runner resource usage (Markdown): https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/a0a57a3e0b5b533094f20079e9a9b7ef/gh-30059118265-1/runner_resource_usage.md

• Runner resource summary (CSV): https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/a0a57a3e0b5b533094f20079e9a9b7ef/gh-30059118265-1/runner_resource_summary.csv

• Runner resource timeseries (CSV): https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/a0a57a3e0b5b533094f20079e9a9b7ef/gh-30059118265-1/runner_resource_timeseries.csv

• Analysis bundle: https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/a0a57a3e0b5b533094f20079e9a9b7ef/gh-30059118265-1/bundles/analysis.zip

• Logs bundle: https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/a0a57a3e0b5b533094f20079e9a9b7ef/gh-30059118265-1/bundles/logs.zip

• Corpus bundle: https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/a0a57a3e0b5b533094f20079e9a9b7ef/gh-30059118265-1/bundles/corpus.zip

• Raw logs prefix: https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/logs/gh-30059118265-1/a0a57a3e0b5b533094f20079e9a9b7ef/

• Raw corpus prefix: https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/corpus/gh-30059118265-1/a0a57a3e0b5b533094f20079e9a9b7ef/