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124 changes: 124 additions & 0 deletions
124
subprojects/xcfa/arg2acsl/src/main/java/hu/bme/mit/theta/arg2acsl/Arg2Acsl.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,124 @@ | ||
| /* | ||
| * Copyright 2024 Budapest University of Technology and Economics | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| package hu.bme.mit.theta.arg2acsl | ||
|
|
||
| import hu.bme.mit.theta.analysis.Action | ||
| import hu.bme.mit.theta.analysis.State | ||
| import hu.bme.mit.theta.analysis.algorithm.arg.ARG | ||
| import hu.bme.mit.theta.analysis.expl.ExplState | ||
| import hu.bme.mit.theta.analysis.expr.ExprState | ||
| import hu.bme.mit.theta.analysis.pred.PredState | ||
| import hu.bme.mit.theta.analysis.ptr.PtrState | ||
| import hu.bme.mit.theta.c2xcfa.CMetaData | ||
| import hu.bme.mit.theta.c2xcfa.getCMetaData | ||
| import hu.bme.mit.theta.core.decl.VarDecl | ||
| import hu.bme.mit.theta.core.type.anytype.RefExpr | ||
| import hu.bme.mit.theta.core.type.booltype.NotExpr | ||
| import hu.bme.mit.theta.core.type.inttype.IntEqExpr | ||
| import hu.bme.mit.theta.core.type.inttype.IntLitExpr | ||
| import hu.bme.mit.theta.core.type.inttype.IntType | ||
| import hu.bme.mit.theta.xcfa.analysis.XcfaState | ||
| import hu.bme.mit.theta.xcfa.analysis.reverseMapping | ||
| import hu.bme.mit.theta.xcfa.analysis.withGeneralizedVars | ||
| import hu.bme.mit.theta.xcfa.model.XcfaGlobalVar | ||
| import hu.bme.mit.theta.xcfa.model.XcfaLocation | ||
| import java.io.File | ||
| import java.math.BigInteger | ||
| import kotlin.streams.asSequence | ||
|
|
||
| fun PredState.toAcsl(): String? = | ||
| if (this.preds.isEmpty()) null else | ||
| this.preds.joinToString(prefix = "(", separator = ") && (", postfix = ")") { pred -> | ||
| pred.toAcsl() | ||
| } | ||
|
|
||
| fun ExplState.toAcsl(): String? = | ||
| if (this.decls.isEmpty()) null else | ||
| this.decls.joinToString(prefix = "(", separator = ") && (", postfix = ")") { decl -> | ||
| "${decl.toAcsl()} == ${this.eval(decl).get().toAcsl()}" | ||
| } | ||
|
|
||
| fun ExprState.toAcsl(): String? = | ||
| when (this) { | ||
| is ExplState -> this.toAcsl() | ||
| is PredState -> this.toAcsl() | ||
| is PtrState<*> -> this.innerState.toAcsl() | ||
| else -> TODO("Conversion to ACSL is not implemented for the domain") | ||
| } | ||
|
|
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| fun<S : ExprState, A : Action> ARG<XcfaState<S>, A>.initialProcedureStates(): Map<XcfaLocation, Set<S>> = | ||
| this.nodes.asSequence().filter { node -> // filter nodes in initial locations | ||
| node.state.processes.values.firstOrNull()?.locs?.peek()?.initial ?: false | ||
| }.groupByUnique( // group states by location | ||
| { it.state.processes.values.first().locs.peek() }, | ||
| { node -> | ||
| val varLookup = node.state.processes.values.firstOrNull()?.varLookup?.peek()?.reverseMapping() ?: mapOf() | ||
| val globalVars = node.state.xcfa?.vars?.map(XcfaGlobalVar::wrappedVar) ?: listOf() | ||
| val relevantVars = (varLookup.keys + varLookup.values + globalVars).filter { !it.name.endsWith("_ret") } | ||
| node.state.withGeneralizedVars(relevantVars) | ||
| } | ||
| ) | ||
|
|
||
| fun<S : ExprState, A : Action> ARG<XcfaState<S>, A>.writeAcslContracts(input: File, output: File) { | ||
| // TODO add @requires \false to unreachable procedures? | ||
| val lines = input.readLines().toMutableList() | ||
|
|
||
| // remove global variable declarations | ||
| val globalVarDecls = this.initNodes.asSequence().first().state.xcfa?.vars?.associate { globalVar -> | ||
| globalVar.getCMetaData()!!.lineNumberStart!!.let { | ||
| Pair(it, lines.removeAt(it - 1).apply { lines.add(it - 1, "") }) | ||
| } | ||
| }?.apply { this.keys.sortedDescending().forEach { lines.removeAt(it - 1) } } | ||
|
|
||
| // add contracts | ||
| this.initialProcedureStates().toSortedMap { l1, l2 -> | ||
| (l2.metadata as CMetaData).lineNumberStart!! - (l1.metadata as CMetaData).lineNumberStart!! | ||
| }.forEach { (location, states) -> | ||
| states.mapIndexedNotNull { i, state -> | ||
| state.toAcsl()?.let{ pred -> "@ behavior ${location.name}_b$i: requires $pred;" } | ||
| }.let { preds -> | ||
| if (preds.isNotEmpty()) { | ||
| val lineNumber = location.getCMetaData()!!.lineNumberStart!!.let { lineNumber -> | ||
| val offset = globalVarDecls?.keys?.count { lineNumber > it } ?: 0 | ||
| if (lineNumber > offset) lineNumber - 1 - offset else 0 | ||
| } | ||
| lines.add(lineNumber, preds.joinToString(separator = "\n", prefix = "/*", postfix = "\n@ complete behaviors;*/")) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // place global variable declarations in the beginning | ||
| val afterExtern = lines.indexOfLast { it.contains("extern") } + 1 | ||
| globalVarDecls?.values?.forEachIndexed { i, globalVarDecl -> lines.add(afterExtern + i, globalVarDecl) } | ||
|
|
||
| output.printWriter().use { writer -> lines.forEach(writer::println) } | ||
| } | ||
|
|
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| fun<S : State, A : Action> writeAcsl(arg: ARG<S, A>, input: File, output: File) { | ||
| ((arg as? ARG<XcfaState<ExprState>, A>?) ?: TODO("ARG cast not implemented")).writeAcslContracts(input, output) | ||
| } | ||
|
|
||
| fun main() { | ||
| PredState.of(listOf( | ||
| NotExpr.of( | ||
| IntEqExpr.of( | ||
| RefExpr.of(VarDecl("n", IntType.getInstance())), | ||
| IntLitExpr.of(BigInteger.valueOf(2147483647)) | ||
| ) | ||
| ) | ||
| )).toAcsl() | ||
| } |
98 changes: 98 additions & 0 deletions
98
subprojects/xcfa/arg2acsl/src/main/java/hu/bme/mit/theta/arg2acsl/Expr2Acsl.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,98 @@ | ||
| /* | ||
| * Copyright 2024 Budapest University of Technology and Economics | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| package hu.bme.mit.theta.arg2acsl | ||
|
|
||
| import hu.bme.mit.theta.core.decl.Decl | ||
| import hu.bme.mit.theta.core.type.* | ||
| import hu.bme.mit.theta.core.type.abstracttype.* | ||
| import hu.bme.mit.theta.core.type.anytype.IteExpr | ||
| import hu.bme.mit.theta.core.type.anytype.RefExpr | ||
| import hu.bme.mit.theta.core.type.booltype.* | ||
| import hu.bme.mit.theta.core.type.inttype.IntLitExpr | ||
|
|
||
| private fun<T : Type> Expr<T>.unimplemented(): String | ||
| = TODO("Conversion to ACSL is not implemented for expression $this") | ||
|
|
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| fun<T : Type> NullaryExpr<T>.toAcsl(): String { | ||
| return when (this) { | ||
| is BoolLitExpr -> "\\$this" | ||
| is IntLitExpr -> "$this" | ||
| is RefExpr -> "$this".split("::").last() | ||
| else -> this.unimplemented() | ||
| } | ||
| } | ||
|
|
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| fun<OpType : Type, ExprType : Type> UnaryExpr<OpType, ExprType>.toAcsl(): String { | ||
| val op = this.op.toAcsl() | ||
| return when (this) { | ||
| is NotExpr -> "!($op)" | ||
| is PosExpr<*> -> "+($op)" | ||
| is NegExpr<*> -> "-($op)" | ||
| else -> this.unimplemented() | ||
| } | ||
| } | ||
|
|
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| fun<OpType: Type, ExprType : Type> BinaryExpr<OpType, ExprType>.toAcsl(): String { | ||
| val leftOp = this.leftOp.toAcsl() | ||
| val rightOp = this.rightOp.toAcsl() | ||
| return when (this) { | ||
| is EqExpr -> "($leftOp) == ($rightOp)" | ||
| is XorExpr -> "($leftOp) ^^ ($rightOp)" | ||
| is NeqExpr -> "($leftOp) != ($rightOp)" | ||
| is GtExpr -> "($leftOp) > ($rightOp)" | ||
| is GeqExpr -> "($leftOp) >= ($rightOp)" | ||
| is LtExpr -> "($leftOp) < ($rightOp)" | ||
| is LeqExpr -> "($leftOp) <= ($rightOp)" | ||
| is SubExpr<*> -> "($leftOp) - ($rightOp)" | ||
| is DivExpr<*> -> "($leftOp) / ($rightOp)" | ||
| is ModExpr<*> -> "($leftOp) % ($rightOp)" | ||
| is RemExpr<*> -> "($leftOp) % ($rightOp)" | ||
| else -> this.unimplemented() | ||
| } | ||
| } | ||
|
|
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| fun<OpType : Type, ExprType : Type> MultiaryExpr<OpType, ExprType>.toAcsl(): String { | ||
| val separator = when (this) { | ||
| is AddExpr<*> -> "+" | ||
| is MulExpr<*> -> "*" | ||
| is AndExpr -> "&&" | ||
| is OrExpr -> "||" | ||
| else -> this.unimplemented() | ||
| } | ||
| return this.ops.joinToString(separator = separator) { op -> | ||
| "(${op.toAcsl()})" | ||
| } | ||
| } | ||
|
|
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| fun<T : Type> IteExpr<T>.toAcsl(): String | ||
| = "(${this.cond.toAcsl()}) ? (${this.then.toAcsl()}) : (${this.`else`.toAcsl()})" | ||
|
|
||
| fun QuantifiedExpr.toAcsl(): String = this.unimplemented() | ||
|
|
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| fun<T : Type> Expr<T>.toAcsl(): String { | ||
| return when (this) { | ||
| is NullaryExpr -> this.toAcsl() | ||
| is UnaryExpr<*, T> -> this.toAcsl() | ||
| is BinaryExpr<*, T> -> this.toAcsl() | ||
| is MultiaryExpr<*, T> -> this.toAcsl() | ||
| is IteExpr<*> -> this.toAcsl() | ||
| is QuantifiedExpr -> this.toAcsl() | ||
| else -> this.unimplemented() | ||
| } | ||
| } | ||
|
|
||
| fun<T : Type> Decl<T>.toAcsl() = this.name.split("::").last() |
22 changes: 22 additions & 0 deletions
22
subprojects/xcfa/arg2acsl/src/main/java/hu/bme/mit/theta/arg2acsl/Utils.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,22 @@ | ||
| /* | ||
| * Copyright 2024 Budapest University of Technology and Economics | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| package hu.bme.mit.theta.arg2acsl | ||
|
|
||
| inline fun <T, K, V> Sequence<T>.groupByUnique(keySelector: (T) -> K, valueTransform: (T) -> V): Map<K, Set<V>> = | ||
| mutableMapOf<K, MutableSet<V>>().apply { | ||
| this@groupByUnique.forEach { this.getOrPut(keySelector(it), ::mutableSetOf).add(valueTransform(it)) } | ||
| } |
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