OutOfMemoryError in Concrete Executor logs and error test

[alisevych]

Description

Test generation for some classes produces Errors report with exceptions in Concrete executor.
Reproducing for:

• StringExamples.isStringBuilderEmpty
• ArrayOfObjects.arrayWithSucc

To Reproduce

1. Enable logs using ~/.utbot/settings.properties: logConcreteExecutionErrors=true
2. Install latest build from main into IDEA 2022.2.3
3. Open UTBotJava project
4. Generate tests with 95% Symbolic execution for

• StringExamples.isStringBuilderEmpty or
• ArrayOfObjects.arrayWithSucc

5. Open the generated test

Expected behavior

There are no errors report tests expected.

Actual behavior

An error test is generated with information about errors in the concrete executor.

Visual proofs (screenshots, logs, images)

    ///region Errors report for arrayWithSucc

    public void testArrayWithSucc_errors() {
        // Couldn't generate some tests. List of errors:
        // 
        // 1 occurrences of:
        // Default concrete execution failed

    }
    ///endregion

The following exception is present in Concrete executor logs:

Exception in thread "kotlinx.coroutines.DefaultExecutor" java.lang.OutOfMemoryError: Java heap space
	at kotlinx.coroutines.CancellableContinuationImpl.resumedState(CancellableContinuationImpl.kt:416)
	at kotlinx.coroutines.CancellableContinuationImpl.resumeImpl(CancellableContinuationImpl.kt:428)
	at kotlinx.coroutines.CancellableContinuationImpl.resumeImpl$default(CancellableContinuationImpl.kt:420)
	at kotlinx.coroutines.CancellableContinuationImpl.resumeUndispatched(CancellableContinuationImpl.kt:518)
	at kotlinx.coroutines.EventLoopImplBase$DelayedResumeTask.run(EventLoop.common.kt:500)
	at kotlinx.coroutines.EventLoopImplBase.processNextEvent(EventLoop.common.kt:284)
	at kotlinx.coroutines.DefaultExecutor.run(DefaultExecutor.kt:108)
	at java.base/java.lang.Thread.run(Thread.java:829)

-6732047430179090681-1.log
-8910242688641328018-1.log

Also once there was a different exception on ArrayOfObjects

16:22:57.037 | Info  | DynamicClassTransformer   | 16:Scheduler for Client60097 | Transforming: org/utbot/examples/arrays/ArrayOfObjects 
16:22:57.143 | Info  | DynamicClassTransformer   | 16:Scheduler for Client60097 | Transforming: org/utbot/examples/arrays/ObjectWithPrimitivesClass 
16:22:57.445 | Info  | DynamicClassTransformer   | 22:executor     | Transforming: org/utbot/examples/arrays/ObjectWithPrimitivesClassSucc 
16:23:43.502 | Error | Client                    | 15:ClientSocket | ClientSocket caught processing | java.lang.OutOfMemoryError: Java heap space
	at java.base/java.lang.Integer.valueOf(Integer.java:1059)
	at com.jetbrains.rd.framework.SocketWireKt.readInt32(SocketWire.kt:43)
	at com.jetbrains.rd.framework.SocketWireKt.access$readInt32(SocketWire.kt:1)
	at com.jetbrains.rd.framework.SocketWire$Base$PkgInputStream.read(SocketWire.kt:227)
	at com.jetbrains.rd.framework.SocketWireKt.readInt32(SocketWire.kt:37)
	at com.jetbrains.rd.framework.SocketWireKt.access$readInt32(SocketWire.kt:1)
	at com.jetbrains.rd.framework.SocketWire$Base.readMsg(SocketWire.kt:197)
	at com.jetbrains.rd.framework.SocketWire$Base.receiverProc(SocketWire.kt:178)
	at com.jetbrains.rd.framework.SocketWire$Base.access$receiverProc(SocketWire.kt:75)
	at com.jetbrains.rd.framework.SocketWire$Base$2.invoke(SocketWire.kt:122)
	at com.jetbrains.rd.framework.SocketWire$Base$2.invoke(SocketWire.kt:106)
	at com.jetbrains.rd.util.reactive.Signal.fire(Signal.kt:32)
	at com.jetbrains.rd.util.reactive.OptProperty.set(Property.kt:40)
	at com.jetbrains.rd.framework.SocketWire$Client$thread$1.invoke(SocketWire.kt:396)
	at com.jetbrains.rd.framework.SocketWire$Client$thread$1.invoke(SocketWire.kt:370)
	at kotlin.concurrent.ThreadsKt$thread$thread$1.run(Thread.kt:30)

2455552591612723164-1.log

Environment

Windows 10 Pro
IntelliJ IDEA 2022.2.3
Gradle project (UTBotJava)
JDK 11

[alisevych]

Reproducing on build from release branch in IDEA 2022.2.3
But now there are no exceptions in concrete executor logs. Only error test in test class.

[Domonion]

Tests are generated on latest main. @alisevych

[alisevych]

@Domonion Reproducing with StringExamples.isStringBuilderEmpty

[Domonion]

Cannot reproduce still, latest main.

[alisevych]

There are different concrete execution errors for StringExamples:

• isStringBuilderEmpty
• nullableStringBuffer
• stringBuilderAsParameterExample

Test are generated. But Errors reports are present. Exceptions in utbot-instrumentedprocess-errors are different:

17:23:26.565 | ERROR | InstrumentedProcess       |  | org.utbot.instrumentation.instrumentation.execution.phases.ExecutionPhaseError: PostprocessingPhase
	at org.utbot.instrumentation.instrumentation.execution.phases.PostprocessingPhase.wrapError(PostprocessingPhase.kt:21)
	at org.utbot.instrumentation.instrumentation.execution.phases.ExecutionPhaseKt.start(ExecutionPhase.kt:29)
	at org.utbot.instrumentation.instrumentation.execution.UtExecutionInstrumentation.invoke(UtExecutionInstrumentation.kt:147)
	at org.utbot.instrumentation.instrumentation.execution.UtExecutionInstrumentation.invoke(UtExecutionInstrumentation.kt:48)
	at org.utbot.instrumentation.process.InstrumentedProcessMainKt$setup$2.invoke(InstrumentedProcessMain.kt:151)
	at org.utbot.instrumentation.process.InstrumentedProcessMainKt$setup$2.invoke(InstrumentedProcessMain.kt:147)
	at org.utbot.rd.IdleWatchdog$wrapActiveCall$1$1.invoke(ClientProcessUtil.kt:96)
	at org.utbot.rd.IdleWatchdog.wrapActive(ClientProcessUtil.kt:83)
	at org.utbot.rd.IdleWatchdog$wrapActiveCall$1.invoke(ClientProcessUtil.kt:95)
	at com.jetbrains.rd.framework.IRdEndpoint$set$1.invoke(TaskInterfaces.kt:182)
	at com.jetbrains.rd.framework.IRdEndpoint$set$1.invoke(TaskInterfaces.kt:173)
	at com.jetbrains.rd.framework.impl.RdCall.onWireReceived(RdTask.kt:360)
	at com.jetbrains.rd.framework.MessageBroker$invoke$2$2.invoke(MessageBroker.kt:57)
	at com.jetbrains.rd.framework.MessageBroker$invoke$2$2.invoke(MessageBroker.kt:12)
	at com.jetbrains.rd.framework.impl.ProtocolContexts.readMessageContextAndInvoke(ProtocolContexts.kt:151)
	at com.jetbrains.rd.framework.MessageBroker$invoke$2.invoke(MessageBroker.kt:56)
	at com.jetbrains.rd.framework.MessageBroker$invoke$2.invoke(MessageBroker.kt:12)
	at com.jetbrains.rd.util.threading.SingleThreadSchedulerBase$queue$1.run(SingleThreadScheduler.kt:41)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:750)
Caused by: java.lang.NullPointerException
	at org.utbot.instrumentation.instrumentation.execution.phases.PostprocessingPhase.getSavedStatics(PostprocessingPhase.kt:16)
	at org.utbot.instrumentation.instrumentation.execution.phases.PostprocessingPhase.resetStaticFields(PostprocessingPhase.kt:24)
	at org.utbot.instrumentation.instrumentation.execution.UtExecutionInstrumentation$invoke$1$4.invoke(UtExecutionInstrumentation.kt:148)
	at org.utbot.instrumentation.instrumentation.execution.UtExecutionInstrumentation$invoke$1$4.invoke(UtExecutionInstrumentation.kt:147)
	at org.utbot.instrumentation.instrumentation.execution.phases.ExecutionPhaseKt.start(ExecutionPhase.kt:24)
	... 19 more

[Domonion]

This issue is an instrance of #1697

[alisevych]

Closing it as a subcase of #1697