/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-Persistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-customized08.bpl


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


This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747
[2021-08-22 16:03:06,810 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2021-08-22 16:03:06,844 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-08-22 16:03:06,846 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
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[2021-08-22 16:03:06,872 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
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[2021-08-22 16:03:06,876 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-08-22 16:03:06,880 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-08-22 16:03:06,881 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-08-22 16:03:06,882 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-08-22 16:03:06,886 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-08-22 16:03:06,891 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-08-22 16:03:06,892 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-08-22 16:03:06,893 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-08-22 16:03:06,894 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-08-22 16:03:06,896 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-08-22 16:03:06,903 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2021-08-22 16:03:06,904 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-08-22 16:03:06,904 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-08-22 16:03:06,905 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
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[2021-08-22 16:03:06,906 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2021-08-22 16:03:06,907 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-08-22 16:03:06,908 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-08-22 16:03:06,908 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-08-22 16:03:06,909 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
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[2021-08-22 16:03:06,909 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2021-08-22 16:03:06,910 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-08-22 16:03:06,913 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-Persistent-NoLbe.epf
[2021-08-22 16:03:06,959 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-08-22 16:03:06,959 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-08-22 16:03:06,959 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-08-22 16:03:06,959 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-08-22 16:03:06,962 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-08-22 16:03:06,962 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-08-22 16:03:06,962 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-08-22 16:03:06,963 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-08-22 16:03:06,963 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-08-22 16:03:06,963 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-08-22 16:03:06,964 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-08-22 16:03:06,964 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-08-22 16:03:06,964 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-08-22 16:03:06,964 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-08-22 16:03:06,964 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-08-22 16:03:06,965 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-08-22 16:03:06,965 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-08-22 16:03:06,965 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-08-22 16:03:06,965 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-08-22 16:03:06,965 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-08-22 16:03:06,965 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-08-22 16:03:06,965 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2021-08-22 16:03:06,965 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-08-22 16:03:06,966 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-08-22 16:03:06,966 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-08-22 16:03:06,966 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-08-22 16:03:06,966 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-08-22 16:03:06,966 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-08-22 16:03:06,966 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-08-22 16:03:06,966 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2021-08-22 16:03:06,967 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2021-08-22 16:03:06,967 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-08-22 16:03:06,967 INFO  L138        SettingsManager]:  * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE
[2021-08-22 16:03:06,967 INFO  L138        SettingsManager]:  * Partial Order Reduction in concurrent analysis=PERSISTENT_SETS
[2021-08-22 16:03:06,967 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2021-08-22 16:03:07,277 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-08-22 16:03:07,294 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-08-22 16:03:07,296 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-08-22 16:03:07,297 INFO  L271        PluginConnector]: Initializing Boogie PL CUP Parser...
[2021-08-22 16:03:07,298 INFO  L275        PluginConnector]: Boogie PL CUP Parser initialized
[2021-08-22 16:03:07,299 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-customized08.bpl
[2021-08-22 16:03:07,299 INFO  L110           BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-customized08.bpl'
[2021-08-22 16:03:07,319 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-08-22 16:03:07,321 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2021-08-22 16:03:07,322 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-08-22 16:03:07,322 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-08-22 16:03:07,322 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-08-22 16:03:07,333 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 04:03:07" (1/1) ...
[2021-08-22 16:03:07,339 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 04:03:07" (1/1) ...
[2021-08-22 16:03:07,353 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-08-22 16:03:07,354 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-08-22 16:03:07,355 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-08-22 16:03:07,355 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-08-22 16:03:07,361 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 04:03:07" (1/1) ...
[2021-08-22 16:03:07,361 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 04:03:07" (1/1) ...
[2021-08-22 16:03:07,362 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 04:03:07" (1/1) ...
[2021-08-22 16:03:07,362 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 04:03:07" (1/1) ...
[2021-08-22 16:03:07,365 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 04:03:07" (1/1) ...
[2021-08-22 16:03:07,369 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 04:03:07" (1/1) ...
[2021-08-22 16:03:07,370 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 04:03:07" (1/1) ...
[2021-08-22 16:03:07,372 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-08-22 16:03:07,373 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-08-22 16:03:07,373 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-08-22 16:03:07,374 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-08-22 16:03:07,375 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 04:03:07" (1/1) ...
[2021-08-22 16:03:07,382 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-08-22 16:03:07,388 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-22 16:03:07,397 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)
[2021-08-22 16:03:07,407 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
[2021-08-22 16:03:07,436 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration
[2021-08-22 16:03:07,436 INFO  L130     BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert
[2021-08-22 16:03:07,436 INFO  L138     BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert
[2021-08-22 16:03:07,436 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration
[2021-08-22 16:03:07,436 INFO  L130     BoogieDeclarations]: Found specification of procedure DeviceThread
[2021-08-22 16:03:07,436 INFO  L138     BoogieDeclarations]: Found implementation of procedure DeviceThread
[2021-08-22 16:03:07,437 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration
[2021-08-22 16:03:07,437 INFO  L130     BoogieDeclarations]: Found specification of procedure ServerThread
[2021-08-22 16:03:07,437 INFO  L138     BoogieDeclarations]: Found implementation of procedure ServerThread
[2021-08-22 16:03:07,437 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration
[2021-08-22 16:03:07,437 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-08-22 16:03:07,437 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-08-22 16:03:07,438 WARN  L209             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2021-08-22 16:03:07,725 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-08-22 16:03:07,725 INFO  L299             CfgBuilder]: Removed 12 assume(true) statements.
[2021-08-22 16:03:07,726 WARN  L329             CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadWithAssertEXIT is neither atomic block end nor error location.
[2021-08-22 16:03:07,727 WARN  L329             CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location.
[2021-08-22 16:03:07,728 INFO  L202        PluginConnector]: Adding new model bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:03:07 BoogieIcfgContainer
[2021-08-22 16:03:07,728 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-08-22 16:03:07,730 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-08-22 16:03:07,730 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-08-22 16:03:07,732 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-08-22 16:03:07,732 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 04:03:07" (1/2) ...
[2021-08-22 16:03:07,733 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec78f78 and model type bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:03:07, skipping insertion in model container
[2021-08-22 16:03:07,733 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-customized08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:03:07" (2/2) ...
[2021-08-22 16:03:07,734 INFO  L111   eAbstractionObserver]: Analyzing ICFG bluetooth-customized08.bpl
[2021-08-22 16:03:07,738 WARN  L149   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2021-08-22 16:03:07,739 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-08-22 16:03:07,739 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-08-22 16:03:07,739 INFO  L516   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2021-08-22 16:03:07,815 INFO  L148    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2021-08-22 16:03:07,861 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2021-08-22 16:03:07,862 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-22 16:03:07,865 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)
[2021-08-22 16:03:07,867 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
[2021-08-22 16:03:07,904 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2021-08-22 16:03:07,925 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
[2021-08-22 16:03:07,925 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 9 error locations.
[2021-08-22 16:03:08,409 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION
[2021-08-22 16:03:08,410 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION
[2021-08-22 16:03:08,410 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION
[2021-08-22 16:03:08,410 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION
[2021-08-22 16:03:08,410 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATION
[2021-08-22 16:03:08,410 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATION
[2021-08-22 16:03:08,411 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6INUSE_VIOLATION
[2021-08-22 16:03:08,411 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7INUSE_VIOLATION
[2021-08-22 16:03:08,411 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8INUSE_VIOLATION
[2021-08-22 16:03:08,418 INFO  L308   ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/2)
[2021-08-22 16:03:08,421 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2021-08-22 16:03:08,422 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-22 16:03:08,423 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)
[2021-08-22 16:03:08,424 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
[2021-08-22 16:03:08,426 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1 ========
[2021-08-22 16:03:08,428 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
[2021-08-22 16:03:08,428 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-08-22 16:03:08,647 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] ===
[2021-08-22 16:03:08,651 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-08-22 16:03:08,652 INFO  L82        PathProgramCache]: Analyzing trace with hash 849264444, now seen corresponding path program 1 times
[2021-08-22 16:03:08,659 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-22 16:03:08,659 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41245069]
[2021-08-22 16:03:08,659 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-22 16:03:08,660 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-22 16:03:08,716 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-22 16:03:08,761 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-08-22 16:03:08,761 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-08-22 16:03:08,762 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41245069]
[2021-08-22 16:03:08,762 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41245069] provided 1 perfect and 0 imperfect interpolant sequences
[2021-08-22 16:03:08,762 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-08-22 16:03:08,763 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-08-22 16:03:08,764 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793762010]
[2021-08-22 16:03:08,769 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-08-22 16:03:08,769 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-08-22 16:03:08,778 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-08-22 16:03:08,779 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-08-22 16:03:08,779 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-08-22 16:03:08,780 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-08-22 16:03:08,781 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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)
[2021-08-22 16:03:08,781 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-08-22 16:03:08,860 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-08-22 16:03:08,861 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-08-22 16:03:08,861 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] ===
[2021-08-22 16:03:08,862 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-08-22 16:03:08,862 INFO  L82        PathProgramCache]: Analyzing trace with hash 1357630691, now seen corresponding path program 1 times
[2021-08-22 16:03:08,862 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-22 16:03:08,862 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832733899]
[2021-08-22 16:03:08,862 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-22 16:03:08,863 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-22 16:03:08,869 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-22 16:03:08,882 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-08-22 16:03:08,882 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-08-22 16:03:08,882 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832733899]
[2021-08-22 16:03:08,883 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832733899] provided 1 perfect and 0 imperfect interpolant sequences
[2021-08-22 16:03:08,883 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-08-22 16:03:08,883 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-08-22 16:03:08,883 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644457477]
[2021-08-22 16:03:08,884 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-08-22 16:03:08,884 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-08-22 16:03:08,885 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-08-22 16:03:08,885 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-08-22 16:03:08,885 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-08-22 16:03:08,885 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-08-22 16:03:08,886 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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)
[2021-08-22 16:03:08,886 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2021-08-22 16:03:08,886 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-08-22 16:03:09,740 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-08-22 16:03:09,740 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-08-22 16:03:09,741 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-08-22 16:03:09,741 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] ===
[2021-08-22 16:03:09,741 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-08-22 16:03:09,742 INFO  L82        PathProgramCache]: Analyzing trace with hash -1516292471, now seen corresponding path program 1 times
[2021-08-22 16:03:09,742 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-22 16:03:09,742 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844505337]
[2021-08-22 16:03:09,742 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-22 16:03:09,742 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-22 16:03:09,767 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-22 16:03:09,863 INFO  L134       CoverageAnalysis]: Checked inductivity of 155 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked.
[2021-08-22 16:03:09,864 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-08-22 16:03:09,864 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844505337]
[2021-08-22 16:03:09,864 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844505337] provided 0 perfect and 1 imperfect interpolant sequences
[2021-08-22 16:03:09,864 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334161271]
[2021-08-22 16:03:09,864 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-22 16:03:09,864 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-08-22 16:03:09,865 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-22 16:03:09,869 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)
[2021-08-22 16:03:09,870 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2021-08-22 16:03:09,914 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-22 16:03:09,916 INFO  L263         TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 25 conjunts are in the unsatisfiable core
[2021-08-22 16:03:09,927 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-08-22 16:03:10,214 INFO  L134       CoverageAnalysis]: Checked inductivity of 155 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked.
[2021-08-22 16:03:10,215 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334161271] provided 0 perfect and 1 imperfect interpolant sequences
[2021-08-22 16:03:10,215 INFO  L186   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-08-22 16:03:10,215 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3
[2021-08-22 16:03:10,216 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386301306]
[2021-08-22 16:03:10,216 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-08-22 16:03:10,216 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-08-22 16:03:10,221 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-08-22 16:03:10,221 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2021-08-22 16:03:10,221 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-08-22 16:03:10,221 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-08-22 16:03:10,222 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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)
[2021-08-22 16:03:10,222 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2021-08-22 16:03:10,222 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-08-22 16:03:10,222 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-08-22 16:03:10,341 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-08-22 16:03:10,341 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-08-22 16:03:10,345 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 16:03:10,377 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2021-08-22 16:03:10,564 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-08-22 16:03:10,565 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] ===
[2021-08-22 16:03:10,565 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-08-22 16:03:10,565 INFO  L82        PathProgramCache]: Analyzing trace with hash -1112222507, now seen corresponding path program 1 times
[2021-08-22 16:03:10,565 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-22 16:03:10,565 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347518675]
[2021-08-22 16:03:10,566 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-22 16:03:10,566 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-22 16:03:10,604 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-22 16:03:10,784 INFO  L134       CoverageAnalysis]: Checked inductivity of 304 backedges. 116 proven. 24 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked.
[2021-08-22 16:03:10,784 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-08-22 16:03:10,785 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347518675]
[2021-08-22 16:03:10,786 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347518675] provided 0 perfect and 1 imperfect interpolant sequences
[2021-08-22 16:03:10,786 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584204686]
[2021-08-22 16:03:10,786 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-22 16:03:10,786 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-08-22 16:03:10,786 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-22 16:03:10,793 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-08-22 16:03:10,794 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2021-08-22 16:03:10,893 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-22 16:03:10,898 INFO  L263         TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 37 conjunts are in the unsatisfiable core
[2021-08-22 16:03:10,900 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-08-22 16:03:11,208 INFO  L134       CoverageAnalysis]: Checked inductivity of 304 backedges. 116 proven. 24 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked.
[2021-08-22 16:03:11,208 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584204686] provided 0 perfect and 1 imperfect interpolant sequences
[2021-08-22 16:03:11,212 INFO  L186   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-08-22 16:03:11,212 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4
[2021-08-22 16:03:11,214 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663576481]
[2021-08-22 16:03:11,216 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-08-22 16:03:11,216 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-08-22 16:03:11,216 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-08-22 16:03:11,217 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2021-08-22 16:03:11,217 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-08-22 16:03:11,217 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-08-22 16:03:11,217 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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)
[2021-08-22 16:03:11,217 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2021-08-22 16:03:11,217 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-08-22 16:03:11,217 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 16:03:11,217 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-08-22 16:03:11,440 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-08-22 16:03:11,441 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-08-22 16:03:11,441 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 16:03:11,441 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-08-22 16:03:11,468 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2021-08-22 16:03:11,658 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-08-22 16:03:11,658 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] ===
[2021-08-22 16:03:11,658 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-08-22 16:03:11,658 INFO  L82        PathProgramCache]: Analyzing trace with hash 1262808740, now seen corresponding path program 1 times
[2021-08-22 16:03:11,658 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-22 16:03:11,659 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575656082]
[2021-08-22 16:03:11,660 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-22 16:03:11,660 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-22 16:03:11,703 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-22 16:03:11,844 INFO  L134       CoverageAnalysis]: Checked inductivity of 711 backedges. 350 proven. 32 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked.
[2021-08-22 16:03:11,861 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-08-22 16:03:11,861 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575656082]
[2021-08-22 16:03:11,861 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575656082] provided 0 perfect and 1 imperfect interpolant sequences
[2021-08-22 16:03:11,861 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484273298]
[2021-08-22 16:03:11,861 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-22 16:03:11,861 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-08-22 16:03:11,861 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-22 16:03:11,865 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-08-22 16:03:11,869 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2021-08-22 16:03:11,991 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-22 16:03:11,993 INFO  L263         TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 63 conjunts are in the unsatisfiable core
[2021-08-22 16:03:11,996 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-08-22 16:03:12,387 INFO  L134       CoverageAnalysis]: Checked inductivity of 711 backedges. 386 proven. 77 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked.
[2021-08-22 16:03:12,387 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484273298] provided 0 perfect and 1 imperfect interpolant sequences
[2021-08-22 16:03:12,388 INFO  L186   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-08-22 16:03:12,388 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7
[2021-08-22 16:03:12,388 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602645894]
[2021-08-22 16:03:12,389 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2021-08-22 16:03:12,389 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-08-22 16:03:12,389 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-08-22 16:03:12,389 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56
[2021-08-22 16:03:12,389 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-08-22 16:03:12,390 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-08-22 16:03:12,390 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 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)
[2021-08-22 16:03:12,390 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2021-08-22 16:03:12,390 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-08-22 16:03:12,390 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 16:03:12,390 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2021-08-22 16:03:12,390 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-08-22 16:03:13,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-08-22 16:03:13,119 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-08-22 16:03:13,119 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 16:03:13,119 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-08-22 16:03:13,119 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2021-08-22 16:03:13,143 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2021-08-22 16:03:13,341 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-08-22 16:03:13,341 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] ===
[2021-08-22 16:03:13,341 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-08-22 16:03:13,342 INFO  L82        PathProgramCache]: Analyzing trace with hash -2106935082, now seen corresponding path program 1 times
[2021-08-22 16:03:13,342 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-22 16:03:13,342 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994276461]
[2021-08-22 16:03:13,342 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-22 16:03:13,342 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-22 16:03:13,435 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-22 16:03:13,831 INFO  L134       CoverageAnalysis]: Checked inductivity of 2657 backedges. 1446 proven. 545 refuted. 0 times theorem prover too weak. 666 trivial. 0 not checked.
[2021-08-22 16:03:13,832 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-08-22 16:03:13,832 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994276461]
[2021-08-22 16:03:13,832 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994276461] provided 0 perfect and 1 imperfect interpolant sequences
[2021-08-22 16:03:13,832 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051581030]
[2021-08-22 16:03:13,832 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-22 16:03:13,832 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-08-22 16:03:13,833 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-22 16:03:13,833 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-08-22 16:03:13,856 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2021-08-22 16:03:14,030 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-22 16:03:14,033 INFO  L263         TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 134 conjunts are in the unsatisfiable core
[2021-08-22 16:03:14,038 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-08-22 16:03:14,872 INFO  L134       CoverageAnalysis]: Checked inductivity of 2657 backedges. 1446 proven. 545 refuted. 0 times theorem prover too weak. 666 trivial. 0 not checked.
[2021-08-22 16:03:14,872 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051581030] provided 0 perfect and 1 imperfect interpolant sequences
[2021-08-22 16:03:14,875 INFO  L186   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-08-22 16:03:14,875 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6
[2021-08-22 16:03:14,877 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082981863]
[2021-08-22 16:03:14,879 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2021-08-22 16:03:14,879 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-08-22 16:03:14,879 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-08-22 16:03:14,879 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56
[2021-08-22 16:03:14,879 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-08-22 16:03:14,880 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-08-22 16:03:14,880 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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)
[2021-08-22 16:03:14,880 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2021-08-22 16:03:14,880 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-08-22 16:03:14,881 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 16:03:14,883 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2021-08-22 16:03:14,885 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. 
[2021-08-22 16:03:14,885 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-08-22 16:03:18,758 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-08-22 16:03:18,758 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-08-22 16:03:18,759 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 16:03:18,759 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-08-22 16:03:18,759 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2021-08-22 16:03:18,769 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2021-08-22 16:03:18,792 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2021-08-22 16:03:18,984 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-08-22 16:03:18,985 INFO  L402      AbstractCegarLoop]: === Iteration 7 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] ===
[2021-08-22 16:03:18,985 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-08-22 16:03:18,985 INFO  L82        PathProgramCache]: Analyzing trace with hash -165894315, now seen corresponding path program 1 times
[2021-08-22 16:03:18,986 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-22 16:03:18,986 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85393935]
[2021-08-22 16:03:18,986 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-22 16:03:18,986 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-22 16:03:19,276 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-22 16:03:20,328 INFO  L134       CoverageAnalysis]: Checked inductivity of 23636 backedges. 10822 proven. 6778 refuted. 0 times theorem prover too weak. 6036 trivial. 0 not checked.
[2021-08-22 16:03:20,328 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-08-22 16:03:20,328 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85393935]
[2021-08-22 16:03:20,329 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85393935] provided 0 perfect and 1 imperfect interpolant sequences
[2021-08-22 16:03:20,329 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12108081]
[2021-08-22 16:03:20,329 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-22 16:03:20,329 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-08-22 16:03:20,330 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-22 16:03:20,330 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-08-22 16:03:20,332 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2021-08-22 16:03:20,903 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-22 16:03:20,918 INFO  L263         TraceCheckSpWp]: Trace formula consists of 1208 conjuncts, 425 conjunts are in the unsatisfiable core
[2021-08-22 16:03:20,930 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-08-22 16:03:23,044 INFO  L134       CoverageAnalysis]: Checked inductivity of 23636 backedges. 10822 proven. 6778 refuted. 0 times theorem prover too weak. 6036 trivial. 0 not checked.
[2021-08-22 16:03:23,045 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [12108081] provided 0 perfect and 1 imperfect interpolant sequences
[2021-08-22 16:03:23,045 INFO  L186   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-08-22 16:03:23,045 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7
[2021-08-22 16:03:23,045 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105808404]
[2021-08-22 16:03:23,046 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2021-08-22 16:03:23,046 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-08-22 16:03:23,047 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2021-08-22 16:03:23,047 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72
[2021-08-22 16:03:23,047 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-08-22 16:03:23,047 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-08-22 16:03:23,047 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 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)
[2021-08-22 16:03:23,047 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2021-08-22 16:03:23,048 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-08-22 16:03:23,048 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 16:03:23,048 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2021-08-22 16:03:23,048 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. 
[2021-08-22 16:03:23,048 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. 
[2021-08-22 16:03:23,048 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-08-22 16:04:35,358 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-08-22 16:04:35,358 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-08-22 16:04:35,359 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 16:04:35,359 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-08-22 16:04:35,359 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2021-08-22 16:04:35,359 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2021-08-22 16:04:35,359 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2021-08-22 16:04:35,379 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2021-08-22 16:04:35,562 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-08-22 16:04:35,562 INFO  L402      AbstractCegarLoop]: === Iteration 8 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] ===
[2021-08-22 16:04:35,562 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-08-22 16:04:35,563 INFO  L82        PathProgramCache]: Analyzing trace with hash 321863095, now seen corresponding path program 1 times
[2021-08-22 16:04:35,563 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-22 16:04:35,563 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949169681]
[2021-08-22 16:04:35,563 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-22 16:04:35,563 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-22 16:04:37,325 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-22 16:04:41,135 INFO  L134       CoverageAnalysis]: Checked inductivity of 194041 backedges. 94417 proven. 50660 refuted. 0 times theorem prover too weak. 48964 trivial. 0 not checked.
[2021-08-22 16:04:41,136 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-08-22 16:04:41,136 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949169681]
[2021-08-22 16:04:41,136 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949169681] provided 0 perfect and 1 imperfect interpolant sequences
[2021-08-22 16:04:41,136 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495675125]
[2021-08-22 16:04:41,136 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-22 16:04:41,136 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-08-22 16:04:41,137 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-22 16:04:41,137 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-08-22 16:04:41,139 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2021-08-22 16:04:42,167 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-22 16:04:42,217 INFO  L263         TraceCheckSpWp]: Trace formula consists of 3419 conjuncts, 1225 conjunts are in the unsatisfiable core
[2021-08-22 16:04:42,239 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-08-22 16:04:47,288 INFO  L134       CoverageAnalysis]: Checked inductivity of 194041 backedges. 94417 proven. 50660 refuted. 0 times theorem prover too weak. 48964 trivial. 0 not checked.
[2021-08-22 16:04:47,289 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495675125] provided 0 perfect and 1 imperfect interpolant sequences
[2021-08-22 16:04:47,289 INFO  L186   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-08-22 16:04:47,289 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8
[2021-08-22 16:04:47,290 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939143941]
[2021-08-22 16:04:47,291 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2021-08-22 16:04:47,291 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-08-22 16:04:47,291 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2021-08-22 16:04:47,292 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90
[2021-08-22 16:04:47,292 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-08-22 16:04:47,292 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-08-22 16:04:47,292 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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)
[2021-08-22 16:04:47,293 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. 
[2021-08-22 16:04:47,293 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-08-22 16:04:47,293 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. 
[2021-08-22 16:04:47,293 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2021-08-22 16:04:47,293 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. 
[2021-08-22 16:04:47,293 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. 
[2021-08-22 16:04:47,293 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2021-08-22 16:04:47,293 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.