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Replaced access path bases with access paths in backward dataflow #282

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Merged
Lipen merged 13 commits into from
Jul 3, 2025
Merged

Replaced access path bases with access paths in backward dataflow #282

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844dcc8
replaced access path base with access path in backward dataflow domain
MForest7 May 28, 2025
6cfcdb8
removed old backward flow functions
MForest7 May 28, 2025
7f683cf
add liveness in backward
MForest7 Jun 23, 2025
e508445
add raw type handling
MForest7 Jun 23, 2025
de21c37
add logback to runtime dependencies
MForest7 Jun 23, 2025
3f5fdde
Add logback, exclude it from shadow minimization
Lipen Jun 23, 2025
c80b2b3
Use AA branch 'neo/2025-06-24'
Lipen Jun 24, 2025
d4b49e9
Add failing test
Lipen Jul 1, 2025
25dac44
Add braces to 'else' branch
Lipen Jul 1, 2025
7eed542
Cleanup
Lipen Jul 1, 2025
e300c00
Format
Lipen Jul 1, 2025
42b8940
Cleanup, remove savedTypes
Lipen Jul 3, 2025
f1ed7a4
Comment failing test
Lipen Jul 3, 2025
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2 changes: 1 addition & 1 deletion .github/workflows/ci.yml
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Expand Up @@ -127,7 +127,7 @@ jobs:
DEST_DIR="arkanalyzer"
MAX_RETRIES=10
RETRY_DELAY=3 # Delay between retries in seconds
BRANCH="neo/2025-06-16"
BRANCH="neo/2025-06-24"

for ((i=1; i<=MAX_RETRIES; i++)); do
git clone --depth=1 --branch $BRANCH $REPO_URL $DEST_DIR && break
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4 changes: 4 additions & 0 deletions usvm-ts-dataflow/build.gradle.kts
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Expand Up @@ -21,6 +21,7 @@ dependencies {
implementation(Libs.kotlinx_collections)
implementation(Libs.kotlinx_serialization_json)
implementation(Libs.clikt)
runtimeOnly(Libs.logback)

testImplementation(Libs.mockk)
testImplementation(Libs.junit_jupiter_params)
Expand Down Expand Up @@ -129,5 +130,8 @@ tasks.shadowJar {
// Provider com.github.ajalt.mordant.terminal.terminalinterface.jna.TerminalInterfaceProviderJna not found
// ```
exclude(dependency("com.github.ajalt.mordant:.*:.*"))

// Keep the logback in shadow jar:
exclude(dependency("ch.qos.logback:logback-classic:.*"))
}
}
8 changes: 2 additions & 6 deletions usvm-ts-dataflow/src/main/kotlin/org/usvm/dataflow/ts/infer/BackwardAnalyzer.kt
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Expand Up @@ -2,21 +2,17 @@ package org.usvm.dataflow.ts.infer

import org.jacodb.ets.model.EtsMethod
import org.jacodb.ets.model.EtsStmt
import org.jacodb.ets.model.EtsType
import org.jacodb.impl.cfg.graphs.GraphDominators
import org.usvm.dataflow.ifds.Analyzer
import org.usvm.dataflow.ifds.Edge
import org.usvm.dataflow.ifds.Vertex
import org.usvm.dataflow.ts.graph.EtsApplicationGraph

class BackwardAnalyzer(
val graph: EtsApplicationGraph,
savedTypes: MutableMap<EtsType, MutableList<EtsTypeFact>>,
dominators: (EtsMethod) -> GraphDominators<EtsStmt>,
doAddKnownTypes: Boolean = true,
) : Analyzer<BackwardTypeDomainFact, AnalyzerEvent, EtsMethod, EtsStmt> {

override val flowFunctions = BackwardFlowFunctions(graph, dominators, savedTypes, doAddKnownTypes)
Comment thread
Lipen marked this conversation as resolved.
override val flowFunctions = BackwardFlowFunctions(doAddKnownTypes)

override fun handleCrossUnitCall(
caller: Vertex<BackwardTypeDomainFact, EtsStmt>,
Expand All @@ -27,7 +23,7 @@ class BackwardAnalyzer(

override fun handleNewEdge(edge: Edge<BackwardTypeDomainFact, EtsStmt>): List<AnalyzerEvent> {
val (startVertex, currentVertex) = edge
val (current, currentFact) = currentVertex
val (current, _) = currentVertex

val method = graph.methodOf(current)
val currentIsExit = current in graph.exitPoints(method)
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