Run gh-30029754277-1

• Date (UTC): 2026-07-23 17:31:27Z
• Benchmark: 47e62079da139812e69dbf10b5df04ff
• Timeout: 4h
• Target: scfuzzbench/liquity-V2-gov-scfuzzbench @ 5610870e7e
• 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
foundry	2	5 [5,5]	5 [5,5]
medusa	2	5 [5,5]	5 [5,5]
recon-fuzzer	2	5 [5,5]	5 [5,5]
echidna	2	5 [5,5]	5 [5,5]

Overall metrics

Fuzzer	AUC (norm)	Plateau time	Late discovery share	Final median	Final IQR
foundry	1.000	0.00h	0.000	5	0.00
medusa	0.997	0.10h	0.000	5	0.00
recon-fuzzer	0.988	0.10h	0.000	5	0.00
echidna	0.975	0.10h	0.000	5	0.00

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
foundry	0.00h	0.00h	0.00h	100.0%	100.0%	100.0%
medusa	0.00h	0.00h	0.05h	100.0%	100.0%	100.0%
recon-fuzzer	0.00h	0.05h	0.10h	100.0%	100.0%	100.0%
echidna	0.10h	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]
foundry	2	2	22120.16 [21799.63,22440.69]	2	1027749464112.62 [1027232226767.94,1028266701457.30]
medusa	2	2	6239.00 [6092.00,6386.00]	2	11775803982.00 [11753693057.00,11797914907.00]
recon-fuzzer	2	2	40579.00 [40231.00,40927.00]	2	58059772237.00 [56117558280.00,60001986194.00]
echidna	2	2	2073.12 [1959.87,2186.36]	2	3509187166.00 [3236779049.50,3781595282.50]

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]
foundry	2	0	n/a	2	0.00 [0.00,0.00]
medusa	2	2	61.50 [59.75,63.25]	2	83.50 [82.25,84.75]
recon-fuzzer	2	0	n/a	2	38.00 [37.00,39.00]
echidna	2	0	n/a	2	43.00 [42.50,43.50]

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 (16 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	8504	34
foundry	unavailable	0/2	0	0
medusa	available	2/2	6192	36
recon-fuzzer	available	2/2	7501	24

Most common saved-corpus selectors

Fuzzer	Selector	Function	Calls	Share
echidna	0x2cf9b2e4	governance_allocateLQTY_clamped_single_initiative(uint8,uint96,uint96)	439	5.16%
echidna	0x4c91b4f4	helper_accrueBold(uint88)	409	4.81%
echidna	0xf24a44c9	assert_canary_ASSERTION_CANARY(uint256)	398	4.68%
echidna	0x88f4edb2	governance_allocateLQTY(int88[],int88[])	392	4.61%
echidna	0x1a042ae7	invariant_canary()	389	4.57%
echidna	0x269ab1e0	invariant_BI04()	386	4.54%
echidna	0x76fda467	governance_registerInitiative(uint8)	379	4.46%
echidna	0xccdcad1d	governance_deployUserProxy()	379	4.46%
echidna	0x294164ea	invariant_BI05()	378	4.44%
echidna	0x69dc493e	initiative_depositBribe(uint128,uint128,uint16,uint8)	377	4.43%
medusa	0x2cf9b2e4	governance_allocateLQTY_clamped_single_initiative(uint8,uint96,uint96)	495	7.99%
medusa	0xf24a44c9	assert_canary_ASSERTION_CANARY(uint256)	421	6.80%
medusa	0x4c91b4f4	helper_accrueBold(uint88)	413	6.67%
medusa	0x76fda467	governance_registerInitiative(uint8)	413	6.67%
medusa	0xddc3e5af	governance_claimForInitiative(uint8)	405	6.54%
medusa	0xf8128e4a	governance_unregisterInitiative(uint8)	385	6.22%
medusa	0x88f4edb2	governance_allocateLQTY(int88[],int88[])	383	6.19%
medusa	0x69dc493e	initiative_depositBribe(uint128,uint128,uint16,uint8)	378	6.10%
medusa	0x3cc21b5d	governance_depositLQTYViaPermit(uint88)	377	6.09%
medusa	0xcb594f39	governance_snapshotVotesForInitiative(address)	374	6.04%
recon-fuzzer	0x69dc493e	initiative_depositBribe(uint128,uint128,uint16,uint8)	423	5.64%
recon-fuzzer	0x95db52cc	governance_depositLQTY(uint88)	390	5.20%
recon-fuzzer	0x269ab1e0	invariant_BI04()	356	4.75%
recon-fuzzer	0x88f4edb2	governance_allocateLQTY(int88[],int88[])	352	4.69%
recon-fuzzer	0xddc3e5af	governance_claimForInitiative(uint8)	346	4.61%
recon-fuzzer	0xccdcad1d	governance_deployUserProxy()	332	4.43%
recon-fuzzer	0x660e6b6e	invariant_GV01()	325	4.33%
recon-fuzzer	0x3cc21b5d	governance_depositLQTYViaPermit(uint88)	323	4.31%
recon-fuzzer	0xf6ec13ec	invariant_BI03()	322	4.29%
recon-fuzzer	0x1a042ae7	invariant_canary()	316	4.21%

Selector telemetry limitations

• i-0500daeab0d17c867-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-07ef2c5a93e46e238-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
foundry	medusa	5	5	2.0	0.500	negligible	1.0000	1.0000	no
foundry	recon-fuzzer	5	5	2.0	0.500	negligible	1.0000	1.0000	no
foundry	echidna	5	5	2.0	0.500	negligible	1.0000	1.0000	no
medusa	recon-fuzzer	5	5	2.0	0.500	negligible	1.0000	1.0000	no
medusa	echidna	5	5	2.0	0.500	negligible	1.0000	1.0000	no
recon-fuzzer	echidna	5	5	2.0	0.500	negligible	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: 40 / 40
• Unique invariants: 5

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	5
foundry	5
medusa	5
recon-fuzzer	5

High-level overlap

• Shared by all active fuzzers: 5
• Exclusive to echidna: 0
• Exclusive to foundry: 0
• Exclusive to medusa: 0
• Exclusive to recon-fuzzer: 0

Grouped invariants

Exclusive to echidna (0)

None.

Exclusive to foundry (0)

None.

Exclusive to medusa (0)

None.

Exclusive to recon-fuzzer (0)

None.

Shared by all active fuzzers (5)

• assert_canary
• invariant_BI03
• invariant_BI04
• invariant_GV01
• invariant_canary

Ground-truth known-bug mapping

• Target: liquity-v2-governance
• Evidence-pinned commit: 5610870e7e91fe6e29f8cfb0c0ae316fe9784e10
• Resolution: matched run repository and commit
• Catalog: benchmarks/known_bugs.json

Only the two instrumented health-check canaries are mapped. Other property failures remain unmapped until a reviewed root-cause record ties them to a confirmed bug.

Canaries are reported separately as harness-health checks and are never included in the known-bug hit-rate denominator.

Per-fuzzer results

Fuzzer	Replicates	Known-bug replicate hits	Catalog coverage	Canary replicate hits	Unmapped event findings
echidna	2	n/a	n/a	4/4 (100.0%)	6
foundry	2	n/a	n/a	4/4 (100.0%)	6
medusa	2	n/a	n/a	4/4 (100.0%)	6
recon-fuzzer	2	n/a	n/a	4/4 (100.0%)	6

Known-bug catalog

Ground-truth ID	Kind	Title	Evidence
None cataloged

Unmapped event identities

Fuzzer	Event identity	Replicates observed
echidna	invariant_BI03	2
echidna	invariant_BI04	2
echidna	invariant_GV01	2
foundry	invariant_BI03	2
foundry	invariant_BI04	2
foundry	invariant_GV01	2
medusa	invariant_BI03	2
medusa	invariant_BI04	2
medusa	invariant_GV01	2
recon-fuzzer	invariant_BI03	2
recon-fuzzer	invariant_BI04	2
recon-fuzzer	invariant_GV01	2

Counting semantics

• A canonical known-bug ID counts at most once per replicate, even when several event aliases or counterexamples reach it.
• A replicate is identified by (run_id, instance_id, fuzzer).
• Known-bug hit rate is canonical bug/replicate hits ÷ (cataloged bugs × replicates).
• Unmapped rows are distinct normalized event identities per replicate. They are triage candidates, not claimed bugs.
• Crash inputs and corpus files are not used as bug identities.

Runner resource usage

• Budget filter: 4.00h
• Instances with metrics: 8
• Total samples: 22378

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	97.57	98.76	19.26	19.87	62.86	64.84
foundry	2	99.68	100.00	1.01	1.41	3.31	4.61
medusa	2	97.87	98.77	1.25	1.91	4.09	6.24
recon-fuzzer	2	99.59	100.00	9.87	18.46	32.21	60.23

Instance stats

Instance	Fuzzer	Samples	Duration (h)	CPU active avg (%)	CPU active peak (%)	Memory avg (GiB)	Memory peak (GiB)	Memory avg (%)	Memory peak (%)
i-003545b0037183b40-echidna-v2.3.2	echidna	2774	4.00	97.64	98.80	19.22	19.89	62.72	64.90
i-0827a0e75c5a91d29-echidna-v2.3.2	echidna	2780	4.00	97.51	98.72	19.30	19.85	62.99	64.78
i-0500daeab0d17c867-foundry-git-02c05d9	foundry	2802	3.99	99.72	100.00	1.02	1.35	3.31	4.41
i-07ef2c5a93e46e238-foundry-git-02c05d9	foundry	2803	4.00	99.65	100.00	1.01	1.47	3.31	4.80
i-0ca4fbf4c2093242f-medusa-v1.5.1	medusa	2807	4.00	97.79	98.68	1.24	2.02	4.05	6.60
i-0edf8f3e1a6ceecf5-medusa-v1.5.1	medusa	2807	4.00	97.95	98.86	1.27	1.80	4.13	5.88
i-033ae747e89a65162-recon-v0.4.18	recon-fuzzer	2802	4.00	99.58	100.00	10.13	18.49	33.06	60.33
i-0a43adfab39541891-recon-v0.4.18	recon-fuzzer	2803	4.00	99.60	100.00	9.61	18.43	31.36	60.14

Manifest

• scfuzzbench_commit: 00775ce0bd3a33b7bf8e9ff213e2e7c235163220
• target_repo_url: https://github.com/scfuzzbench/liquity-V2-gov-scfuzzbench
• target_commit: 5610870e7e91fe6e29f8cfb0c0ae316fe9784e10
• 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-30029754277-1/47e62079da139812e69dbf10b5df04ff/manifest.json

• Report prefix: https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/47e62079da139812e69dbf10b5df04ff/gh-30029754277-1/

• Broken invariants (Markdown): https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/47e62079da139812e69dbf10b5df04ff/gh-30029754277-1/broken_invariants.md

• Broken invariants (CSV): https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/47e62079da139812e69dbf10b5df04ff/gh-30029754277-1/broken_invariants.csv

• Ground-truth known bugs (Markdown): https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/47e62079da139812e69dbf10b5df04ff/gh-30029754277-1/known_bug_report.md

• Ground-truth summary (CSV): https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/47e62079da139812e69dbf10b5df04ff/gh-30029754277-1/known_bug_summary.csv

• Ground-truth findings (CSV): https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/47e62079da139812e69dbf10b5df04ff/gh-30029754277-1/known_bug_findings.csv

• Throughput summary (CSV): https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/47e62079da139812e69dbf10b5df04ff/gh-30029754277-1/throughput_summary.csv

• Progress metrics summary (CSV): https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/47e62079da139812e69dbf10b5df04ff/gh-30029754277-1/progress_metrics_summary.csv

• Function selector distribution (CSV): https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/47e62079da139812e69dbf10b5df04ff/gh-30029754277-1/selector_distribution.csv

• Function selector summary and health (JSON): https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/47e62079da139812e69dbf10b5df04ff/gh-30029754277-1/selector_summary.json

• Runner resource usage (Markdown): https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/47e62079da139812e69dbf10b5df04ff/gh-30029754277-1/runner_resource_usage.md

• Runner resource summary (CSV): https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/47e62079da139812e69dbf10b5df04ff/gh-30029754277-1/runner_resource_summary.csv

• Runner resource timeseries (CSV): https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/47e62079da139812e69dbf10b5df04ff/gh-30029754277-1/runner_resource_timeseries.csv

• Analysis bundle: https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/47e62079da139812e69dbf10b5df04ff/gh-30029754277-1/bundles/analysis.zip

• Logs bundle: https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/47e62079da139812e69dbf10b5df04ff/gh-30029754277-1/bundles/logs.zip

• Corpus bundle: https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/analysis/47e62079da139812e69dbf10b5df04ff/gh-30029754277-1/bundles/corpus.zip

• Raw logs prefix: https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/logs/gh-30029754277-1/47e62079da139812e69dbf10b5df04ff/

• Raw corpus prefix: https://scfuzzbench-logs-185f44d6.s3.us-east-1.amazonaws.com/corpus/gh-30029754277-1/47e62079da139812e69dbf10b5df04ff/