/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect04.bpl


--------------------------------------------------------------------------------


This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3
[2021-10-22 17:26:37,064 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2021-10-22 17:26:37,120 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
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[2021-10-22 17:26:37,122 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
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[2021-10-22 17:26:37,128 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-22 17:26:37,129 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-10-22 17:26:37,130 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
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[2021-10-22 17:26:37,136 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
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[2021-10-22 17:26:37,137 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2021-10-22 17:26:37,138 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-10-22 17:26:37,144 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Random42.epf
[2021-10-22 17:26:37,172 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-10-22 17:26:37,172 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-22 17:26:37,173 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-10-22 17:26:37,173 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-10-22 17:26:37,174 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-22 17:26:37,174 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-10-22 17:26:37,174 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-10-22 17:26:37,174 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-22 17:26:37,174 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-10-22 17:26:37,174 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-10-22 17:26:37,175 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-10-22 17:26:37,175 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-10-22 17:26:37,175 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-10-22 17:26:37,175 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-10-22 17:26:37,175 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-10-22 17:26:37,176 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-10-22 17:26:37,176 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-10-22 17:26:37,176 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-10-22 17:26:37,176 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-10-22 17:26:37,176 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-22 17:26:37,176 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-10-22 17:26:37,176 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2021-10-22 17:26:37,176 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-10-22 17:26:37,176 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-22 17:26:37,177 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-22 17:26:37,177 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-10-22 17:26:37,178 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-10-22 17:26:37,178 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-10-22 17:26:37,178 INFO  L138        SettingsManager]:  * DFS Order used in POR=RANDOM
[2021-10-22 17:26:37,178 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-10-22 17:26:37,178 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2021-10-22 17:26:37,178 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2021-10-22 17:26:37,178 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-10-22 17:26:37,179 INFO  L138        SettingsManager]:  * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE
[2021-10-22 17:26:37,179 INFO  L138        SettingsManager]:  * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER
[2021-10-22 17:26:37,179 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2021-10-22 17:26:37,179 INFO  L138        SettingsManager]:  * Random seed used by POR DFS order=42
[2021-10-22 17:26:37,179 INFO  L138        SettingsManager]:  * Use conditional POR in concurrent analysis=false
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2021-10-22 17:26:37,336 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-22 17:26:37,357 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-22 17:26:37,359 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-22 17:26:37,360 INFO  L271        PluginConnector]: Initializing Boogie PL CUP Parser...
[2021-10-22 17:26:37,360 INFO  L275        PluginConnector]: Boogie PL CUP Parser initialized
[2021-10-22 17:26:37,361 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect04.bpl
[2021-10-22 17:26:37,361 INFO  L110           BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect04.bpl'
[2021-10-22 17:26:37,391 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-22 17:26:37,392 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2021-10-22 17:26:37,393 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-22 17:26:37,394 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-22 17:26:37,394 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-22 17:26:37,404 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 05:26:37" (1/1) ...
[2021-10-22 17:26:37,408 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 05:26:37" (1/1) ...
[2021-10-22 17:26:37,420 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-22 17:26:37,421 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-22 17:26:37,421 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-22 17:26:37,421 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-10-22 17:26:37,427 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 05:26:37" (1/1) ...
[2021-10-22 17:26:37,427 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 05:26:37" (1/1) ...
[2021-10-22 17:26:37,427 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 05:26:37" (1/1) ...
[2021-10-22 17:26:37,428 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 05:26:37" (1/1) ...
[2021-10-22 17:26:37,429 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 05:26:37" (1/1) ...
[2021-10-22 17:26:37,431 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 05:26:37" (1/1) ...
[2021-10-22 17:26:37,431 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 05:26:37" (1/1) ...
[2021-10-22 17:26:37,432 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-22 17:26:37,435 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-22 17:26:37,435 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-10-22 17:26:37,435 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-10-22 17:26:37,438 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 05:26:37" (1/1) ...
[2021-10-22 17:26:37,444 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-22 17:26:37,452 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-10-22 17:26:37,471 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-10-22 17:26:37,511 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-10-22 17:26:37,527 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration
[2021-10-22 17:26:37,527 INFO  L130     BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert
[2021-10-22 17:26:37,527 INFO  L138     BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert
[2021-10-22 17:26:37,527 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration
[2021-10-22 17:26:37,527 INFO  L130     BoogieDeclarations]: Found specification of procedure DeviceThread
[2021-10-22 17:26:37,527 INFO  L138     BoogieDeclarations]: Found implementation of procedure DeviceThread
[2021-10-22 17:26:37,528 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration
[2021-10-22 17:26:37,528 INFO  L130     BoogieDeclarations]: Found specification of procedure ServerThread
[2021-10-22 17:26:37,528 INFO  L138     BoogieDeclarations]: Found implementation of procedure ServerThread
[2021-10-22 17:26:37,528 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration
[2021-10-22 17:26:37,528 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-22 17:26:37,528 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-22 17:26:37,530 WARN  L209             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2021-10-22 17:26:37,714 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-22 17:26:37,714 INFO  L299             CfgBuilder]: Removed 12 assume(true) statements.
[2021-10-22 17:26:37,716 INFO  L202        PluginConnector]: Adding new model bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 05:26:37 BoogieIcfgContainer
[2021-10-22 17:26:37,716 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-22 17:26:37,717 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-10-22 17:26:37,717 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-10-22 17:26:37,733 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-10-22 17:26:37,734 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 05:26:37" (1/2) ...
[2021-10-22 17:26:37,734 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5555461e and model type bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 05:26:37, skipping insertion in model container
[2021-10-22 17:26:37,734 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 05:26:37" (2/2) ...
[2021-10-22 17:26:37,735 INFO  L111   eAbstractionObserver]: Analyzing ICFG bluetooth-incorrect04.bpl
[2021-10-22 17:26:37,741 WARN  L149   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2021-10-22 17:26:37,741 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-10-22 17:26:37,742 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-10-22 17:26:37,742 INFO  L516   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2021-10-22 17:26:37,772 INFO  L148    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2021-10-22 17:26:37,807 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2021-10-22 17:26:37,807 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-10-22 17:26:37,808 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2021-10-22 17:26:37,809 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process
[2021-10-22 17:26:37,828 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2021-10-22 17:26:37,832 INFO  L339      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2021-10-22 17:26:37,832 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2021-10-22 17:26:38,455 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION
[2021-10-22 17:26:38,456 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION
[2021-10-22 17:26:38,456 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION
[2021-10-22 17:26:38,456 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION
[2021-10-22 17:26:38,456 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATION
[2021-10-22 17:26:38,464 INFO  L308   ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE,SAFE,SAFE (1/2)
[2021-10-22 17:26:38,469 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2021-10-22 17:26:38,469 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-10-22 17:26:38,472 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2021-10-22 17:26:38,481 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process
[2021-10-22 17:26:38,485 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1 ========
[2021-10-22 17:26:38,486 INFO  L339      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2021-10-22 17:26:38,486 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-10-22 17:26:38,548 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] ===
[2021-10-22 17:26:38,552 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-22 17:26:38,552 INFO  L82        PathProgramCache]: Analyzing trace with hash -670902013, now seen corresponding path program 1 times
[2021-10-22 17:26:38,560 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-22 17:26:38,560 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677653561]
[2021-10-22 17:26:38,560 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-22 17:26:38,561 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-22 17:26:38,607 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-22 17:26:38,681 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-22 17:26:38,682 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-22 17:26:38,682 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677653561]
[2021-10-22 17:26:38,683 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677653561] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-22 17:26:38,683 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-22 17:26:38,683 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-10-22 17:26:38,684 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446601207]
[2021-10-22 17:26:38,690 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-22 17:26:38,690 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-22 17:26:38,698 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-22 17:26:38,700 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-22 17:26:38,700 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-10-22 17:26:38,701 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-10-22 17:26:38,701 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-22 17:26:38,702 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-10-22 17:26:38,786 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-22 17:26:38,787 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-10-22 17:26:38,787 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] ===
[2021-10-22 17:26:38,788 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-22 17:26:38,788 INFO  L82        PathProgramCache]: Analyzing trace with hash 1926355437, now seen corresponding path program 1 times
[2021-10-22 17:26:38,788 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-22 17:26:38,788 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295254475]
[2021-10-22 17:26:38,789 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-22 17:26:38,789 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-22 17:26:38,818 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-22 17:26:38,934 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2021-10-22 17:26:38,935 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-22 17:26:38,935 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295254475]
[2021-10-22 17:26:38,935 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295254475] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-22 17:26:38,935 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-22 17:26:38,935 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2021-10-22 17:26:38,935 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229556477]
[2021-10-22 17:26:38,936 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2021-10-22 17:26:38,936 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-22 17:26:38,937 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-10-22 17:26:38,938 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42
[2021-10-22 17:26:38,938 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-10-22 17:26:38,938 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-10-22 17:26:38,938 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-22 17:26:38,938 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-10-22 17:26:38,938 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-10-22 17:26:39,054 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-22 17:26:39,055 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-10-22 17:26:39,055 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-10-22 17:26:39,056 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] ===
[2021-10-22 17:26:39,056 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-22 17:26:39,056 INFO  L82        PathProgramCache]: Analyzing trace with hash 744017456, now seen corresponding path program 1 times
[2021-10-22 17:26:39,057 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-22 17:26:39,057 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071724579]
[2021-10-22 17:26:39,057 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-22 17:26:39,057 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-22 17:26:39,074 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-22 17:26:39,087 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2021-10-22 17:26:39,087 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-22 17:26:39,088 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071724579]
[2021-10-22 17:26:39,088 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071724579] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-22 17:26:39,088 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-22 17:26:39,089 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-22 17:26:39,089 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955116907]
[2021-10-22 17:26:39,089 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-22 17:26:39,089 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-22 17:26:39,090 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-22 17:26:39,092 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-22 17:26:39,092 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-10-22 17:26:39,093 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-10-22 17:26:39,093 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-22 17:26:39,093 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-10-22 17:26:39,093 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2021-10-22 17:26:39,093 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-10-22 17:26:39,102 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-22 17:26:39,103 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-10-22 17:26:39,103 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-22 17:26:39,103 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-10-22 17:26:39,104 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] ===
[2021-10-22 17:26:39,104 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-22 17:26:39,104 INFO  L82        PathProgramCache]: Analyzing trace with hash 744940977, now seen corresponding path program 1 times
[2021-10-22 17:26:39,104 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-22 17:26:39,105 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218138050]
[2021-10-22 17:26:39,105 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-22 17:26:39,105 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-22 17:26:39,127 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-22 17:26:39,237 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2021-10-22 17:26:39,237 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-22 17:26:39,238 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218138050]
[2021-10-22 17:26:39,238 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218138050] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-22 17:26:39,240 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-22 17:26:39,245 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2021-10-22 17:26:39,245 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675809723]
[2021-10-22 17:26:39,246 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2021-10-22 17:26:39,246 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-22 17:26:39,246 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-10-22 17:26:39,246 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56
[2021-10-22 17:26:39,246 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-10-22 17:26:39,246 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-10-22 17:26:39,247 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-22 17:26:39,247 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-10-22 17:26:39,247 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2021-10-22 17:26:39,247 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-10-22 17:26:39,247 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-10-22 17:26:39,436 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-22 17:26:39,436 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-10-22 17:26:39,436 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-22 17:26:39,436 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2021-10-22 17:26:39,437 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-10-22 17:26:39,437 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] ===
[2021-10-22 17:26:39,437 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-22 17:26:39,437 INFO  L82        PathProgramCache]: Analyzing trace with hash 676264647, now seen corresponding path program 1 times
[2021-10-22 17:26:39,437 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-22 17:26:39,437 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15595799]
[2021-10-22 17:26:39,437 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-22 17:26:39,438 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-22 17:26:39,468 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-22 17:26:39,701 INFO  L134       CoverageAnalysis]: Checked inductivity of 66 backedges. 39 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2021-10-22 17:26:39,701 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-22 17:26:39,701 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15595799]
[2021-10-22 17:26:39,701 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15595799] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-22 17:26:39,702 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128375467]
[2021-10-22 17:26:39,702 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-22 17:26:39,702 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-22 17:26:39,702 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-10-22 17:26:39,746 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-22 17:26:39,747 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2021-10-22 17:26:39,798 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-22 17:26:39,802 WARN  L261         TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 64 conjunts are in the unsatisfiable core
[2021-10-22 17:26:39,814 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-22 17:26:40,274 INFO  L134       CoverageAnalysis]: Checked inductivity of 66 backedges. 1 proven. 41 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2021-10-22 17:26:40,275 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [128375467] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-22 17:26:40,275 INFO  L186   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-22 17:26:40,275 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14
[2021-10-22 17:26:40,275 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339230031]
[2021-10-22 17:26:40,275 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2021-10-22 17:26:40,275 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-22 17:26:40,276 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2021-10-22 17:26:40,278 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210
[2021-10-22 17:26:40,278 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-10-22 17:26:40,278 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-10-22 17:26:40,278 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 15 states, 15 states have (on average 5.133333333333334) internal successors, (77), 14 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-22 17:26:40,278 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-10-22 17:26:40,278 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2021-10-22 17:26:40,278 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-10-22 17:26:40,278 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2021-10-22 17:26:40,278 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-10-22 17:26:40,509 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-22 17:26:40,509 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-10-22 17:26:40,509 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-22 17:26:40,509 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2021-10-22 17:26:40,510 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2021-10-22 17:26:40,534 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2021-10-22 17:26:40,730 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-22 17:26:40,731 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] ===
[2021-10-22 17:26:40,731 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-22 17:26:40,731 INFO  L82        PathProgramCache]: Analyzing trace with hash -682817482, now seen corresponding path program 2 times
[2021-10-22 17:26:40,731 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-22 17:26:40,731 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111783006]
[2021-10-22 17:26:40,731 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-22 17:26:40,732 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-22 17:26:40,745 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-22 17:26:40,746 INFO  L354             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-22 17:26:40,758 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-22 17:26:40,768 INFO  L133   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-22 17:26:40,768 INFO  L626         BasicCegarLoop]: Counterexample is feasible
[2021-10-22 17:26:40,768 INFO  L764   garLoopResultBuilder]: Registering result UNSAFE for location DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT
[2021-10-22 17:26:40,768 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2021-10-22 17:26:40,769 INFO  L308   ceAbstractionStarter]: Result for error location DeviceThreadWithAssertThread1of1ForFork1 was UNSAFE (2/2)
[2021-10-22 17:26:40,771 INFO  L229   ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2021-10-22 17:26:40,771 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2021-10-22 17:26:40,793 INFO  L202        PluginConnector]: Adding new model bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 05:26:40 BasicIcfg
[2021-10-22 17:26:40,794 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-10-22 17:26:40,795 INFO  L168              Benchmark]: Toolchain (without parser) took 3401.89 ms. Allocated memory was 169.9 MB in the beginning and 224.4 MB in the end (delta: 54.5 MB). Free memory was 137.2 MB in the beginning and 195.1 MB in the end (delta: -57.9 MB). There was no memory consumed. Max. memory is 8.0 GB.
[2021-10-22 17:26:40,795 INFO  L168              Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 169.9 MB. Free memory is still 138.2 MB. There was no memory consumed. Max. memory is 8.0 GB.
[2021-10-22 17:26:40,795 INFO  L168              Benchmark]: Boogie Procedure Inliner took 27.13 ms. Allocated memory is still 169.9 MB. Free memory was 136.9 MB in the beginning and 135.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB.
[2021-10-22 17:26:40,795 INFO  L168              Benchmark]: Boogie Preprocessor took 10.55 ms. Allocated memory is still 169.9 MB. Free memory was 135.2 MB in the beginning and 134.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB.
[2021-10-22 17:26:40,796 INFO  L168              Benchmark]: RCFGBuilder took 280.68 ms. Allocated memory is still 169.9 MB. Free memory was 134.2 MB in the beginning and 119.7 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB.
[2021-10-22 17:26:40,796 INFO  L168              Benchmark]: TraceAbstraction took 3076.53 ms. Allocated memory was 169.9 MB in the beginning and 224.4 MB in the end (delta: 54.5 MB). Free memory was 119.1 MB in the beginning and 195.1 MB in the end (delta: -75.9 MB). There was no memory consumed. Max. memory is 8.0 GB.
[2021-10-22 17:26:40,797 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 169.9 MB. Free memory is still 138.2 MB. There was no memory consumed. Max. memory is 8.0 GB.
 * Boogie Procedure Inliner took 27.13 ms. Allocated memory is still 169.9 MB. Free memory was 136.9 MB in the beginning and 135.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB.
 * Boogie Preprocessor took 10.55 ms. Allocated memory is still 169.9 MB. Free memory was 135.2 MB in the beginning and 134.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB.
 * RCFGBuilder took 280.68 ms. Allocated memory is still 169.9 MB. Free memory was 134.2 MB in the beginning and 119.7 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB.
 * TraceAbstraction took 3076.53 ms. Allocated memory was 169.9 MB in the beginning and 224.4 MB in the end (delta: 54.5 MB). Free memory was 119.1 MB in the beginning and 195.1 MB in the end (delta: -75.9 MB). There was no memory consumed. Max. memory is 8.0 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: Independence relation benchmarks
    ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 22034, positive: 19736, positive conditional: 18838, positive unconditional: 898, negative: 2298, negative conditional: 2263, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 21113, positive: 19736, positive conditional: 0, positive unconditional: 19736, negative: 1377, negative conditional: 0, negative unconditional: 1377, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 816, positive: 781, positive conditional: 0, positive unconditional: 781, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 816, positive: 751, positive conditional: 0, positive unconditional: 751, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 65, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 251, positive: 108, positive conditional: 0, positive unconditional: 108, negative: 142, negative conditional: 0, negative unconditional: 142, unknown: 0, unknown conditional: 0, unknown unconditional: 0]  ], Cache Queries: [ total: 21113, positive: 18955, positive conditional: 0, positive unconditional: 18955, negative: 1342, negative conditional: 0, negative unconditional: 1342, unknown: 816, unknown conditional: 0, unknown unconditional: 816] , Statistics on independence cache: Total cache size (in pairs): 816, Positive cache size: 781, Positive conditional cache size: 0, Positive unconditional cache size: 781, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Independence queries for same thread: 921
  - StatisticsResult: Persistent set benchmarks
    Persistent set computation time[ms]: 365, Number of persistent set computation: 677, Number of trivial persistent sets: 339, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 22034, positive: 19736, positive conditional: 18838, positive unconditional: 898, negative: 2298, negative conditional: 2263, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 21113, positive: 19736, positive conditional: 0, positive unconditional: 19736, negative: 1377, negative conditional: 0, negative unconditional: 1377, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 816, positive: 781, positive conditional: 0, positive unconditional: 781, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 816, positive: 751, positive conditional: 0, positive unconditional: 751, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 65, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 251, positive: 108, positive conditional: 0, positive unconditional: 108, negative: 142, negative conditional: 0, negative unconditional: 142, unknown: 0, unknown conditional: 0, unknown unconditional: 0]  ], Cache Queries: [ total: 21113, positive: 18955, positive conditional: 0, positive unconditional: 18955, negative: 1342, negative conditional: 0, negative unconditional: 1342, unknown: 816, unknown conditional: 0, unknown unconditional: 816] , Statistics on independence cache: Total cache size (in pairs): 816, Positive cache size: 781, Positive conditional cache size: 0, Positive unconditional cache size: 781, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Independence queries for same thread: 921
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - StatisticsResult: Independence relation benchmarks
    ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 39432, positive: 36047, positive conditional: 35192, positive unconditional: 855, negative: 3385, negative conditional: 3343, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 38316, positive: 36047, positive conditional: 0, positive unconditional: 36047, negative: 2269, negative conditional: 0, negative unconditional: 2269, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 823, positive: 781, positive conditional: 0, positive unconditional: 781, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 823, positive: 741, positive conditional: 0, positive unconditional: 741, negative: 82, negative conditional: 0, negative unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 82, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 200, positive: 99, positive conditional: 0, positive unconditional: 99, negative: 102, negative conditional: 0, negative unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0]  ], Cache Queries: [ total: 38316, positive: 35266, positive conditional: 0, positive unconditional: 35266, negative: 2227, negative conditional: 0, negative unconditional: 2227, unknown: 823, unknown conditional: 0, unknown unconditional: 823] , Statistics on independence cache: Total cache size (in pairs): 823, Positive cache size: 781, Positive conditional cache size: 0, Positive unconditional cache size: 781, Negative cache size: 42, Negative conditional cache size: 0, Negative unconditional cache size: 42, Independence queries for same thread: 1116
  - StatisticsResult: Persistent set benchmarks
    Persistent set computation time[ms]: 234, Number of persistent set computation: 254, Number of trivial persistent sets: 229, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 39432, positive: 36047, positive conditional: 35192, positive unconditional: 855, negative: 3385, negative conditional: 3343, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 38316, positive: 36047, positive conditional: 0, positive unconditional: 36047, negative: 2269, negative conditional: 0, negative unconditional: 2269, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 823, positive: 781, positive conditional: 0, positive unconditional: 781, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 823, positive: 741, positive conditional: 0, positive unconditional: 741, negative: 82, negative conditional: 0, negative unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 82, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 200, positive: 99, positive conditional: 0, positive unconditional: 99, negative: 102, negative conditional: 0, negative unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0]  ], Cache Queries: [ total: 38316, positive: 35266, positive conditional: 0, positive unconditional: 35266, negative: 2227, negative conditional: 0, negative unconditional: 2227, unknown: 823, unknown conditional: 0, unknown unconditional: 823] , Statistics on independence cache: Total cache size (in pairs): 823, Positive cache size: 781, Positive conditional cache size: 0, Positive unconditional cache size: 781, Negative cache size: 42, Negative conditional cache size: 0, Negative unconditional cache size: 42, Independence queries for same thread: 1116
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - CounterExampleResult [Line: 37]: assertion can be violated
    assertion can be violated
We found a FailurePath: 
[L14]              0  pendingIo := 1;
       VAL            [pendingIo=1]
[L15]              0  stopped := false;
       VAL            [pendingIo=1, stopped=false]
[L16]              0  stoppingEvent := false;
       VAL            [pendingIo=1, stopped=false, stoppingEvent=false]
[L17]              0  stoppingFlag := false;
       VAL            [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false]
[L19]  FORK        0  fork 0 ServerThread();
       VAL            [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false]
[L21]  FORK        0  fork 1 DeviceThreadWithAssert();
       VAL            [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false]
[L59]              2  assume !stoppingFlag;
       VAL            [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false]
[L60]              2  pendingIo := pendingIo + 1;
       VAL            [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false]
[L37]              2  assert !stopped;
       VAL            [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false]
[L22]  FORK        0  fork 2 DeviceThread();
       VAL            [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false]
[L23]  FORK        0  fork 3 DeviceThread();
       VAL            [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false]
[L24]  FORK        0  fork 4 DeviceThread();
       VAL            [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false]
[L59]              5  assume !stoppingFlag;
       VAL            [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false]
[L60]              5  pendingIo := pendingIo + 1;
       VAL            [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false]
[L68]              2  pendingIo := pendingIo - 1;
[L69]  COND FALSE  2  !(pendingIo == 0)
       VAL            [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false]
[L59]              2  assume !stoppingFlag;
       VAL            [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false]
[L68]              5  pendingIo := pendingIo - 1;
[L69]  COND FALSE  5  !(pendingIo == 0)
       VAL            [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false]
[L60]              2  pendingIo := pendingIo + 1;
       VAL            [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false]
[L59]              5  assume !stoppingFlag;
       VAL            [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false]
[L37]              2  assert !stopped;
       VAL            [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false]
[L68]              2  pendingIo := pendingIo - 1;
[L69]  COND FALSE  2  !(pendingIo == 0)
       VAL            [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false]
[L59]              2  assume !stoppingFlag;
       VAL            [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false]
[L60]              5  pendingIo := pendingIo + 1;
       VAL            [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false]
[L59]              4  assume !stoppingFlag;
       VAL            [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false]
[L81]              1  stoppingFlag := true;
       VAL            [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=true]
[L91]              1  pendingIo := pendingIo - 1;
[L92]  COND FALSE  1  !(pendingIo == 0)
       VAL            [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true]
[L60]              4  pendingIo := pendingIo + 1;
       VAL            [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=true]
[L68]              5  pendingIo := pendingIo - 1;
[L69]  COND FALSE  5  !(pendingIo == 0)
       VAL            [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true]
[L68]              4  pendingIo := pendingIo - 1;
[L69]  COND TRUE   4  pendingIo == 0
[L70]              4  stoppingEvent := true;
       VAL            [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true]
[L60]              2  pendingIo := pendingIo + 1;
       VAL            [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true]
[L83]              1  assume stoppingEvent;
       VAL            [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true]
[L84]              1  stopped := true;
       VAL            [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true]
[L37]              2  assert !stopped;
       VAL            [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true]

  - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances
    CFG has 9 procedures, 56 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 659.0ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.4ms, PartialOrderReductionTime: 605.2ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available
  - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: DeviceThreadWithAssertThread1of1ForFork1 with 1 thread instances
    CFG has 9 procedures, 56 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 2300.8ms, OverallIterations: 6, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.8ms, PartialOrderReductionTime: 692.8ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 16.4ms SsaConstructionTime, 117.4ms SatisfiabilityAnalysisTime, 1016.6ms InterpolantComputationTime, 243 NumberOfCodeBlocks, 243 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 201 ConstructedInterpolants, 0 QuantifiedInterpolants, 938 SizeOfPredicates, 1 NumberOfNonLiveVariables, 97 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 109/153 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
[2021-10-22 17:26:40,825 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Forceful destruction successful, exit code 0
[2021-10-22 17:26:41,038 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0
[2021-10-22 17:26:41,241 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...