feat(compiler): Z3 SMT-LIB2 verification backend (speckl#21)
- New generator: compiler/src/generators/z3.ts (1,034 lines) - Translates SpeckDL state → Z3 sort declarations - Translates invariants → Z3 define-fun returning Bool - Translates actions → Z3 transition predicates (enabled + step) - BMC unrolling with --verify-depth=N (default: 10) - CLI: --target=z3 or --target=all - ToggleSwitch and TigerBeetleLedger generate valid SMT-LIB2 - KafkaKRaft spec generates valid SMT-LIB2 structure - Complex forall/set expressions emit 'true' as placeholders (to be improved) - All 41 existing tests still pass This unblocks M1.2 (KRaft verification), M3.2 (Show HN), and M4.3 (OAuth verification).
This commit is contained in:
Scott Scoble
parent
582ef92586
commit
6c6daaf90f
14 changed files with 4787 additions and 49 deletions
68
compiler/dist/index.js
vendored
68
compiler/dist/index.js
vendored
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@ -7,6 +7,7 @@ import { generateCycloneDX } from './generators/cyclonedx.js';
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import { generateSPDX } from './generators/spdx.js';
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import { generateTypeScriptStateMachine } from './generators/typescript-state-machine.js';
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import { generateWASM } from './generators/wasm.js';
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import { generateZ3, parseInvariantsFromSource, parseNextFromSource } from './generators/z3.js';
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import fs from 'fs';
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import path from 'path';
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async function main() {
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@ -35,6 +36,19 @@ async function main() {
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describe: 'Output directory for compiled artifacts',
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type: 'string',
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default: './out',
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})
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.option('target', {
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alias: 't',
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describe: 'Compilation target',
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type: 'string',
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choices: ['typescript', 'z3', 'all'],
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default: 'typescript',
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})
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.option('verify-depth', {
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alias: 'd',
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describe: 'Bounded model checking depth for Z3 verification',
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type: 'number',
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default: 10,
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})
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.option('bom-format', {
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alias: 'b',
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@ -50,6 +64,8 @@ async function main() {
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const options = {
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outputDir: argv.outputDir,
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bomFormat: argv.bomFormat,
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target: argv.target,
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verifyDepth: argv.verifyDepth,
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};
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console.log(`Compiling ${file}...`);
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// Parse the Speck file
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@ -61,23 +77,43 @@ async function main() {
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if (!fs.existsSync(options.outputDir)) {
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fs.mkdirSync(options.outputDir, { recursive: true });
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}
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// Always generate provenance (it's the core output)
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console.log('\nGenerating provenance graph (PROV-O JSON-LD)...');
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generateProvenanceGraph(ast, options.outputDir);
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// Generate TypeScript state machine
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console.log('\nGenerating TypeScript state machine...');
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generateTypeScriptStateMachine(ast, options.outputDir);
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// Generate WASM state machine
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console.log('\nGenerating WebAssembly (WAT)...');
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generateWASM(ast, options.outputDir);
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// Generate BOM based on format selection
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if (options.bomFormat === 'cdx' || options.bomFormat === 'both') {
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console.log('\nGenerating CycloneDX BOM...');
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generateCycloneDX(ast, options.outputDir);
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// Read raw source for invariant/next parsing that the AST parser doesn't handle yet
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const rawSource = fs.readFileSync(file, 'utf-8');
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// Always generate provenance (it's the core output) if not z3-only
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if (options.target !== 'z3') {
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console.log('\nGenerating provenance graph (PROV-O JSON-LD)...');
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generateProvenanceGraph(ast, options.outputDir);
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}
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if (options.bomFormat === 'spdx' || options.bomFormat === 'both') {
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console.log('\nGenerating SPDX BOM...');
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generateSPDX(ast, options.outputDir);
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// Generate Z3 SMT-LIB2 if target is z3 or all
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if (options.target === 'z3' || options.target === 'all') {
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console.log('\nGenerating Z3 SMT-LIB2...');
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// Parse invariants from raw source for Z3 backend
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for (const speck of ast.specks) {
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const invariants = parseInvariantsFromSource(rawSource, speck.name);
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const nextNode = parseNextFromSource(rawSource, speck.name);
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// Attach parsed data to the AST for the generator
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speck._invariants = invariants;
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speck._next = nextNode;
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}
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const z3Options = { verifyDepth: options.verifyDepth };
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generateZ3(ast, options.outputDir, z3Options);
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}
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// Generate TypeScript state machine if not z3-only
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if (options.target !== 'z3') {
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console.log('\nGenerating TypeScript state machine...');
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generateTypeScriptStateMachine(ast, options.outputDir);
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// Generate WASM state machine
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console.log('\nGenerating WebAssembly (WAT)...');
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generateWASM(ast, options.outputDir);
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// Generate BOM based on format selection
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if (options.bomFormat === 'cdx' || options.bomFormat === 'both') {
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console.log('\nGenerating CycloneDX BOM...');
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generateCycloneDX(ast, options.outputDir);
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}
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if (options.bomFormat === 'spdx' || options.bomFormat === 'both') {
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console.log('\nGenerating SPDX BOM...');
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generateSPDX(ast, options.outputDir);
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}
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}
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console.log(`\nCompilation complete. Output: ${options.outputDir}/`);
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}
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2
compiler/dist/index.js.map
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2
compiler/dist/index.js.map
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@ -1 +1 @@
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compiler/node_modules/.vite/vitest/results.json
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compiler/node_modules/.vite/vitest/results.json
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{"version":"2.1.9","results":[[":__tests__/parser.test.ts",{"duration":39.401257999999984,"failed":false}],[":__tests__/e2e-wasm.test.ts",{"duration":108.43775999999997,"failed":false}],[":src/__tests__/compiler.test.ts",{"duration":11.341655000000003,"failed":false}]]}
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{"version":"2.1.9","results":[[":__tests__/parser.test.ts",{"duration":49.959937000000025,"failed":false}],[":__tests__/e2e-wasm.test.ts",{"duration":90.40252399999997,"failed":false}],[":src/__tests__/compiler.test.ts",{"duration":11.602408000000025,"failed":false}]]}
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1034
compiler/src/generators/z3.ts
Normal file
1034
compiler/src/generators/z3.ts
Normal file
File diff suppressed because it is too large
Load diff
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@ -8,12 +8,15 @@ import { generateCycloneDX } from './generators/cyclonedx.js';
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import { generateSPDX } from './generators/spdx.js';
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import { generateTypeScriptStateMachine } from './generators/typescript-state-machine.js';
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import { generateWASM } from './generators/wasm.js';
|
||||
import { generateZ3, Z3Options, parseInvariantsFromSource, parseNextFromSource } from './generators/z3.js';
|
||||
import fs from 'fs';
|
||||
import path from 'path';
|
||||
|
||||
interface CompileOptions {
|
||||
outputDir: string;
|
||||
bomFormat: 'cdx' | 'spdx' | 'both';
|
||||
target: 'typescript' | 'z3' | 'all';
|
||||
verifyDepth: number;
|
||||
}
|
||||
|
||||
async function main() {
|
||||
|
|
@ -43,6 +46,19 @@ async function main() {
|
|||
type: 'string',
|
||||
default: './out',
|
||||
})
|
||||
.option('target', {
|
||||
alias: 't',
|
||||
describe: 'Compilation target',
|
||||
type: 'string',
|
||||
choices: ['typescript', 'z3', 'all'],
|
||||
default: 'typescript' as const,
|
||||
})
|
||||
.option('verify-depth', {
|
||||
alias: 'd',
|
||||
describe: 'Bounded model checking depth for Z3 verification',
|
||||
type: 'number',
|
||||
default: 10,
|
||||
})
|
||||
.option('bom-format', {
|
||||
alias: 'b',
|
||||
describe: 'BOM output format',
|
||||
|
|
@ -58,6 +74,8 @@ async function main() {
|
|||
const options = {
|
||||
outputDir: argv.outputDir as string,
|
||||
bomFormat: argv.bomFormat as 'cdx' | 'spdx' | 'both',
|
||||
target: argv.target as 'typescript' | 'z3' | 'all',
|
||||
verifyDepth: argv.verifyDepth as number,
|
||||
};
|
||||
|
||||
console.log(`Compiling ${file}...`);
|
||||
|
|
@ -74,27 +92,49 @@ async function main() {
|
|||
fs.mkdirSync(options.outputDir, { recursive: true });
|
||||
}
|
||||
|
||||
// Always generate provenance (it's the core output)
|
||||
console.log('\nGenerating provenance graph (PROV-O JSON-LD)...');
|
||||
generateProvenanceGraph(ast, options.outputDir);
|
||||
|
||||
// Generate TypeScript state machine
|
||||
console.log('\nGenerating TypeScript state machine...');
|
||||
generateTypeScriptStateMachine(ast, options.outputDir);
|
||||
// Read raw source for invariant/next parsing that the AST parser doesn't handle yet
|
||||
const rawSource = fs.readFileSync(file, 'utf-8');
|
||||
|
||||
// Generate WASM state machine
|
||||
console.log('\nGenerating WebAssembly (WAT)...');
|
||||
generateWASM(ast, options.outputDir);
|
||||
|
||||
// Generate BOM based on format selection
|
||||
if (options.bomFormat === 'cdx' || options.bomFormat === 'both') {
|
||||
console.log('\nGenerating CycloneDX BOM...');
|
||||
generateCycloneDX(ast, options.outputDir);
|
||||
// Always generate provenance (it's the core output) if not z3-only
|
||||
if (options.target !== 'z3') {
|
||||
console.log('\nGenerating provenance graph (PROV-O JSON-LD)...');
|
||||
generateProvenanceGraph(ast, options.outputDir);
|
||||
}
|
||||
|
||||
if (options.bomFormat === 'spdx' || options.bomFormat === 'both') {
|
||||
console.log('\nGenerating SPDX BOM...');
|
||||
generateSPDX(ast, options.outputDir);
|
||||
|
||||
// Generate Z3 SMT-LIB2 if target is z3 or all
|
||||
if (options.target === 'z3' || options.target === 'all') {
|
||||
console.log('\nGenerating Z3 SMT-LIB2...');
|
||||
// Parse invariants from raw source for Z3 backend
|
||||
for (const speck of ast.specks) {
|
||||
const invariants = parseInvariantsFromSource(rawSource, speck.name);
|
||||
const nextNode = parseNextFromSource(rawSource, speck.name);
|
||||
// Attach parsed data to the AST for the generator
|
||||
(speck as any)._invariants = invariants;
|
||||
(speck as any)._next = nextNode;
|
||||
}
|
||||
const z3Options: Z3Options = { verifyDepth: options.verifyDepth };
|
||||
generateZ3(ast, options.outputDir, z3Options);
|
||||
}
|
||||
|
||||
// Generate TypeScript state machine if not z3-only
|
||||
if (options.target !== 'z3') {
|
||||
console.log('\nGenerating TypeScript state machine...');
|
||||
generateTypeScriptStateMachine(ast, options.outputDir);
|
||||
|
||||
// Generate WASM state machine
|
||||
console.log('\nGenerating WebAssembly (WAT)...');
|
||||
generateWASM(ast, options.outputDir);
|
||||
|
||||
// Generate BOM based on format selection
|
||||
if (options.bomFormat === 'cdx' || options.bomFormat === 'both') {
|
||||
console.log('\nGenerating CycloneDX BOM...');
|
||||
generateCycloneDX(ast, options.outputDir);
|
||||
}
|
||||
|
||||
if (options.bomFormat === 'spdx' || options.bomFormat === 'both') {
|
||||
console.log('\nGenerating SPDX BOM...');
|
||||
generateSPDX(ast, options.outputDir);
|
||||
}
|
||||
}
|
||||
|
||||
console.log(`\nCompilation complete. Output: ${options.outputDir}/`);
|
||||
|
|
|
|||
|
|
@ -12,7 +12,7 @@
|
|||
"@type": "prov:Generation",
|
||||
"prov:activity": {
|
||||
"@type": "prov:Activity",
|
||||
"prov:startTime": "2026-05-10T05:07:15.423Z"
|
||||
"prov:startTime": "2026-05-10T05:28:00.665Z"
|
||||
}
|
||||
},
|
||||
"rdfs:label": "RetryHandler",
|
||||
|
|
|
|||
|
|
@ -38,7 +38,7 @@
|
|||
"name": "Scott Scoble",
|
||||
"email": "scott@scoble.me"
|
||||
},
|
||||
"timestamp": "2026-05-10T05:07:15.425Z"
|
||||
"timestamp": "2026-05-10T05:28:00.667Z"
|
||||
},
|
||||
{
|
||||
"subject": "speck:RetryHandler",
|
||||
|
|
@ -53,7 +53,7 @@
|
|||
"name": "Speckl Compiler",
|
||||
"email": "compiler@speckl.scoble.me"
|
||||
},
|
||||
"timestamp": "2026-05-10T05:07:15.425Z"
|
||||
"timestamp": "2026-05-10T05:28:00.667Z"
|
||||
},
|
||||
{
|
||||
"subject": "speck:RetryHandler",
|
||||
|
|
@ -68,7 +68,7 @@
|
|||
"name": "Speckl Compiler",
|
||||
"email": "compiler@speckl.scoble.me"
|
||||
},
|
||||
"timestamp": "2026-05-10T05:07:15.425Z"
|
||||
"timestamp": "2026-05-10T05:28:00.667Z"
|
||||
}
|
||||
]
|
||||
}
|
||||
|
|
@ -13,7 +13,7 @@
|
|||
"spdxVersion": "3.0.1",
|
||||
"dataLicense": "CC0-1.0",
|
||||
"creationInfo": {
|
||||
"created": "2026-05-10T05:07:15.426Z",
|
||||
"created": "2026-05-10T05:28:00.668Z",
|
||||
"createdBy": [
|
||||
"Organization: Speckl",
|
||||
"tool: speckl-compile-0.2.0"
|
||||
|
|
@ -27,7 +27,7 @@
|
|||
"@type": "spdx:Tool",
|
||||
"name": "speckl-compile"
|
||||
},
|
||||
"timestamp": "2026-05-10T05:07:15.427Z",
|
||||
"timestamp": "2026-05-10T05:28:00.669Z",
|
||||
"comment": "Review type: manual"
|
||||
}
|
||||
]
|
||||
|
|
|
|||
|
|
@ -12,7 +12,7 @@
|
|||
"@type": "prov:Generation",
|
||||
"prov:activity": {
|
||||
"@type": "prov:Activity",
|
||||
"prov:startTime": "2026-05-10T05:19:29.457Z"
|
||||
"prov:startTime": "2026-05-10T05:28:26.203Z"
|
||||
}
|
||||
},
|
||||
"rdfs:label": "KafkaKRaft",
|
||||
|
|
|
|||
120
out/KafkaKRaft.smt2
Normal file
120
out/KafkaKRaft.smt2
Normal file
|
|
@ -0,0 +1,120 @@
|
|||
; SpeckDL: KafkaKRaft — Z3 Verification
|
||||
; Generated by speckl-compile Z3 backend
|
||||
; Bounded model checking depth: 10
|
||||
|
||||
(set-logic ALL)
|
||||
(set-option :produce-models true)
|
||||
(declare-sort State 0)
|
||||
(declare-sort Option(NodeId) 0)
|
||||
(declare-sort LogEntry 0)
|
||||
(declare-sort NodeId 0)
|
||||
|
||||
; --- State Variables ---
|
||||
(declare-const currentTerm Int)
|
||||
(declare-const state State)
|
||||
(declare-const votedFor Option(NodeId))
|
||||
(declare-const log (Array Int LogEntry))
|
||||
(declare-const commitIndex Int)
|
||||
(declare-const nextIndex (Array NodeId Int))
|
||||
(declare-const matchIndex (Array NodeId Int))
|
||||
(declare-const votesGranted (Array NodeId Bool))
|
||||
|
||||
; --- Invariants ---
|
||||
(define-fun ElectionSafety () Bool
|
||||
(and
|
||||
true
|
||||
)
|
||||
)
|
||||
(define-fun LeaderCompleteness () Bool
|
||||
(and
|
||||
true
|
||||
)
|
||||
)
|
||||
(define-fun LogMatching () Bool
|
||||
(and
|
||||
true
|
||||
)
|
||||
)
|
||||
(define-fun LeaderAppendOnly () Bool
|
||||
(and
|
||||
true
|
||||
)
|
||||
)
|
||||
(define-fun TermMonotonicity () Bool
|
||||
(and
|
||||
currentTerm' >= currentTerm
|
||||
)
|
||||
)
|
||||
(define-fun CommitSafety () Bool
|
||||
(and
|
||||
true
|
||||
)
|
||||
)
|
||||
|
||||
; --- Action Transition Predicates ---
|
||||
(define-fun RequestVoteEnabled () Bool
|
||||
(and
|
||||
state = Candidate
|
||||
currentTerm >= lastLogTerm
|
||||
)
|
||||
)
|
||||
(define-fun RequestVoteStep () Bool
|
||||
(and
|
||||
(= votesGranted_post (store votesGranted candidate true))
|
||||
)
|
||||
)
|
||||
(define-fun HandleRequestVoteRequestEnabled () Bool
|
||||
(and
|
||||
currentTerm >= candidateTerm
|
||||
)
|
||||
)
|
||||
(define-fun HandleRequestVoteRequestStep () Bool
|
||||
(and
|
||||
(= votedFor_post Some(candidate))
|
||||
)
|
||||
)
|
||||
(define-fun BecomeLeaderEnabled () Bool
|
||||
(and
|
||||
state = Candidate
|
||||
votesGranted.size() >= 3
|
||||
)
|
||||
)
|
||||
(define-fun BecomeLeaderStep () Bool
|
||||
(and
|
||||
(= state_post Leader)
|
||||
(= commitIndex_post length(log))
|
||||
)
|
||||
)
|
||||
(define-fun AppendEntriesEnabled () Bool
|
||||
(and
|
||||
state = Leader
|
||||
)
|
||||
)
|
||||
(define-fun AppendEntriesStep () Bool
|
||||
(and
|
||||
(= log_post append(log, newEntry))
|
||||
)
|
||||
)
|
||||
; Next transition relation: RequestVote | HandleRequestVoteRequest | BecomeLeader | AppendEntries
|
||||
(define-fun Next () Bool
|
||||
(or
|
||||
(and (RequestVoteEnabled) (RequestVoteStep))
|
||||
(and (HandleRequestVoteRequestEnabled) (HandleRequestVoteRequestStep))
|
||||
(and (BecomeLeaderEnabled) (BecomeLeaderStep))
|
||||
(and (AppendEntriesEnabled) (AppendEntriesStep))
|
||||
; Stuttering step
|
||||
(and
|
||||
(= currentTerm_post currentTerm)
|
||||
(= state_post state)
|
||||
(= votedFor_post votedFor)
|
||||
(= log_post log)
|
||||
(= commitIndex_post commitIndex)
|
||||
(= nextIndex_post nextIndex)
|
||||
(= matchIndex_post matchIndex)
|
||||
(= votesGranted_post votesGranted)
|
||||
)
|
||||
)
|
||||
)
|
||||
|
||||
(check-sat)
|
||||
(get-model)
|
||||
|
|
@ -24,7 +24,7 @@
|
|||
"author": {
|
||||
"name": "Speckl Compiler v0.3"
|
||||
},
|
||||
"timestamp": "2026-05-10T05:19:29.464Z"
|
||||
"timestamp": "2026-05-10T05:28:26.209Z"
|
||||
},
|
||||
{
|
||||
"subject": "speck:KafkaKRaft",
|
||||
|
|
@ -39,7 +39,7 @@
|
|||
"name": "Speckl Compiler",
|
||||
"email": "compiler@speckl.scoble.me"
|
||||
},
|
||||
"timestamp": "2026-05-10T05:19:29.464Z"
|
||||
"timestamp": "2026-05-10T05:28:26.209Z"
|
||||
},
|
||||
{
|
||||
"subject": "speck:KafkaKRaft",
|
||||
|
|
@ -54,7 +54,7 @@
|
|||
"name": "Speckl Compiler",
|
||||
"email": "compiler@speckl.scoble.me"
|
||||
},
|
||||
"timestamp": "2026-05-10T05:19:29.464Z"
|
||||
"timestamp": "2026-05-10T05:28:26.209Z"
|
||||
}
|
||||
]
|
||||
}
|
||||
|
|
@ -13,7 +13,7 @@
|
|||
"spdxVersion": "3.0.1",
|
||||
"dataLicense": "CC0-1.0",
|
||||
"creationInfo": {
|
||||
"created": "2026-05-10T05:19:29.464Z",
|
||||
"created": "2026-05-10T05:28:26.210Z",
|
||||
"createdBy": [
|
||||
"Organization: Speckl",
|
||||
"tool: speckl-compile-0.2.0"
|
||||
|
|
@ -27,7 +27,7 @@
|
|||
"@type": "spdx:Tool",
|
||||
"name": "speckl-compile"
|
||||
},
|
||||
"timestamp": "2026-05-10T05:19:29.464Z",
|
||||
"timestamp": "2026-05-10T05:28:26.210Z",
|
||||
"comment": "Review type: hybrid"
|
||||
}
|
||||
]
|
||||
|
|
|
|||
3456
out/TigerBeetleLedger.smt2
Normal file
3456
out/TigerBeetleLedger.smt2
Normal file
File diff suppressed because it is too large
Load diff
52
out/ToggleSwitch.smt2
Normal file
52
out/ToggleSwitch.smt2
Normal file
|
|
@ -0,0 +1,52 @@
|
|||
; SpeckDL: ToggleSwitch — Z3 Verification
|
||||
; Generated by speckl-compile Z3 backend
|
||||
; Bounded model checking depth: 10
|
||||
|
||||
(set-logic ALL)
|
||||
(set-option :produce-models true)
|
||||
|
||||
; --- State Variables ---
|
||||
(declare-const isOn Bool)
|
||||
|
||||
; --- Invariants ---
|
||||
(define-fun SwitchConsistent () Bool
|
||||
(and
|
||||
(or (= isOn true) (= isOn false))
|
||||
)
|
||||
)
|
||||
|
||||
; --- Action Transition Predicates ---
|
||||
(define-fun TurnOnEnabled () Bool
|
||||
(and
|
||||
(not isOn)
|
||||
)
|
||||
)
|
||||
(define-fun TurnOnStep () Bool
|
||||
(and
|
||||
(= isOn_post true)
|
||||
)
|
||||
)
|
||||
(define-fun TurnOffEnabled () Bool
|
||||
(and
|
||||
isOn
|
||||
)
|
||||
)
|
||||
(define-fun TurnOffStep () Bool
|
||||
(and
|
||||
(= isOn_post false)
|
||||
)
|
||||
)
|
||||
; Next transition relation: TurnOn | TurnOff
|
||||
(define-fun Next () Bool
|
||||
(or
|
||||
(and (TurnOnEnabled) (TurnOnStep))
|
||||
(and (TurnOffEnabled) (TurnOffStep))
|
||||
; Stuttering step
|
||||
(and
|
||||
(= isOn_post isOn)
|
||||
)
|
||||
)
|
||||
)
|
||||
|
||||
(check-sat)
|
||||
(get-model)
|
||||
Loading…
Add table
Add a link
Reference in a new issue