/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-Random7777.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct08.bpl


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


This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3
[2021-10-25 10:34:43,374 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2021-10-25 10:34:43,450 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-25 10:34:43,451 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-25 10:34:43,452 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-25 10:34:43,453 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
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[2021-10-25 10:34:43,458 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-25 10:34:43,459 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-10-25 10:34:43,460 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-25 10:34:43,464 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2021-10-25 10:34:43,465 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
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[2021-10-25 10:34:43,467 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2021-10-25 10:34:43,470 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
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[2021-10-25 10:34:43,471 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2021-10-25 10:34:43,472 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-10-25 10:34:43,473 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-Random7777.epf
[2021-10-25 10:34:43,495 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-10-25 10:34:43,495 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-25 10:34:43,496 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-10-25 10:34:43,496 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-10-25 10:34:43,497 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-25 10:34:43,497 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-10-25 10:34:43,497 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-10-25 10:34:43,497 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-25 10:34:43,497 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-10-25 10:34:43,497 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-10-25 10:34:43,498 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-10-25 10:34:43,498 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-10-25 10:34:43,498 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-10-25 10:34:43,498 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-10-25 10:34:43,498 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-10-25 10:34:43,498 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-10-25 10:34:43,498 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-10-25 10:34:43,498 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-10-25 10:34:43,499 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-10-25 10:34:43,499 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-25 10:34:43,499 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-10-25 10:34:43,499 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2021-10-25 10:34:43,499 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-10-25 10:34:43,500 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-25 10:34:43,500 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-25 10:34:43,500 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-10-25 10:34:43,500 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-10-25 10:34:43,500 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-10-25 10:34:43,500 INFO  L138        SettingsManager]:  * DFS Order used in POR=RANDOM
[2021-10-25 10:34:43,500 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-10-25 10:34:43,500 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2021-10-25 10:34:43,500 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2021-10-25 10:34:43,501 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-10-25 10:34:43,501 INFO  L138        SettingsManager]:  * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE
[2021-10-25 10:34:43,501 INFO  L138        SettingsManager]:  * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER
[2021-10-25 10:34:43,501 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2021-10-25 10:34:43,501 INFO  L138        SettingsManager]:  * Random seed used by POR DFS order=7777
[2021-10-25 10:34:43,501 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2021-10-25 10:34:43,691 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-25 10:34:43,706 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-25 10:34:43,708 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-25 10:34:43,708 INFO  L271        PluginConnector]: Initializing Boogie PL CUP Parser...
[2021-10-25 10:34:43,709 INFO  L275        PluginConnector]: Boogie PL CUP Parser initialized
[2021-10-25 10:34:43,709 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct08.bpl
[2021-10-25 10:34:43,710 INFO  L110           BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct08.bpl'
[2021-10-25 10:34:43,725 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-25 10:34:43,726 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2021-10-25 10:34:43,727 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-25 10:34:43,730 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-25 10:34:43,731 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-25 10:34:43,742 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:34:43" (1/1) ...
[2021-10-25 10:34:43,747 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:34:43" (1/1) ...
[2021-10-25 10:34:43,759 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-25 10:34:43,760 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-25 10:34:43,760 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-25 10:34:43,760 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-10-25 10:34:43,765 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:34:43" (1/1) ...
[2021-10-25 10:34:43,766 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:34:43" (1/1) ...
[2021-10-25 10:34:43,766 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:34:43" (1/1) ...
[2021-10-25 10:34:43,766 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:34:43" (1/1) ...
[2021-10-25 10:34:43,767 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:34:43" (1/1) ...
[2021-10-25 10:34:43,769 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:34:43" (1/1) ...
[2021-10-25 10:34:43,770 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:34:43" (1/1) ...
[2021-10-25 10:34:43,770 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-25 10:34:43,771 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-25 10:34:43,771 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-10-25 10:34:43,771 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-10-25 10:34:43,773 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:34:43" (1/1) ...
[2021-10-25 10:34:43,779 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-25 10:34:43,783 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-10-25 10:34:43,793 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)
[2021-10-25 10:34:43,798 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
[2021-10-25 10:34:43,820 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration
[2021-10-25 10:34:43,820 INFO  L130     BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert
[2021-10-25 10:34:43,820 INFO  L138     BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert
[2021-10-25 10:34:43,820 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration
[2021-10-25 10:34:43,820 INFO  L130     BoogieDeclarations]: Found specification of procedure DeviceThread
[2021-10-25 10:34:43,821 INFO  L138     BoogieDeclarations]: Found implementation of procedure DeviceThread
[2021-10-25 10:34:43,821 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration
[2021-10-25 10:34:43,821 INFO  L130     BoogieDeclarations]: Found specification of procedure ServerThread
[2021-10-25 10:34:43,821 INFO  L138     BoogieDeclarations]: Found implementation of procedure ServerThread
[2021-10-25 10:34:43,821 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration
[2021-10-25 10:34:43,821 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-25 10:34:43,821 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-25 10:34:43,822 WARN  L209             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2021-10-25 10:34:44,020 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-25 10:34:44,021 INFO  L299             CfgBuilder]: Removed 12 assume(true) statements.
[2021-10-25 10:34:44,021 WARN  L329             CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadWithAssertEXIT is neither atomic block end nor error location.
[2021-10-25 10:34:44,022 WARN  L329             CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location.
[2021-10-25 10:34:44,023 INFO  L202        PluginConnector]: Adding new model bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:34:44 BoogieIcfgContainer
[2021-10-25 10:34:44,023 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-25 10:34:44,025 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-10-25 10:34:44,025 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-10-25 10:34:44,028 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-10-25 10:34:44,028 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:34:43" (1/2) ...
[2021-10-25 10:34:44,029 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@772e4794 and model type bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 10:34:44, skipping insertion in model container
[2021-10-25 10:34:44,029 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:34:44" (2/2) ...
[2021-10-25 10:34:44,030 INFO  L111   eAbstractionObserver]: Analyzing ICFG bluetooth-correct08.bpl
[2021-10-25 10:34:44,033 WARN  L149   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2021-10-25 10:34:44,033 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-10-25 10:34:44,033 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-10-25 10:34:44,043 INFO  L516   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2021-10-25 10:34:44,079 INFO  L148    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2021-10-25 10:34:44,107 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2021-10-25 10:34:44,107 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-10-25 10:34:44,108 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)
[2021-10-25 10:34:44,109 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
[2021-10-25 10:34:44,133 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2021-10-25 10:34:44,137 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
[2021-10-25 10:34:44,137 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 9 error locations.
[2021-10-25 10:35:17,226 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION
[2021-10-25 10:35:17,227 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION
[2021-10-25 10:35:17,227 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION
[2021-10-25 10:35:17,227 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION
[2021-10-25 10:35:17,227 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATION
[2021-10-25 10:35:17,228 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATION
[2021-10-25 10:35:17,228 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6INUSE_VIOLATION
[2021-10-25 10:35:17,228 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7INUSE_VIOLATION
[2021-10-25 10:35:17,228 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8INUSE_VIOLATION
[2021-10-25 10:35:17,235 INFO  L308   ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/2)
[2021-10-25 10:35:17,238 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2021-10-25 10:35:17,239 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-10-25 10:35:17,240 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)
[2021-10-25 10:35:17,241 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
[2021-10-25 10:35:17,246 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1 ========
[2021-10-25 10:35:17,247 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
[2021-10-25 10:35:17,247 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-10-25 10:35:17,496 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] ===
[2021-10-25 10:35:17,501 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-25 10:35:17,501 INFO  L82        PathProgramCache]: Analyzing trace with hash -45143198, now seen corresponding path program 1 times
[2021-10-25 10:35:17,509 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-25 10:35:17,509 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111065140]
[2021-10-25 10:35:17,510 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-25 10:35:17,510 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-25 10:35:17,696 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-25 10:35:17,801 INFO  L134       CoverageAnalysis]: Checked inductivity of 176 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked.
[2021-10-25 10:35:17,801 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-25 10:35:17,801 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111065140]
[2021-10-25 10:35:17,802 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111065140] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-25 10:35:17,802 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-25 10:35:17,802 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-25 10:35:17,803 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602878322]
[2021-10-25 10:35:17,812 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-25 10:35:17,812 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-25 10:35:17,820 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-25 10:35:17,822 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-25 10:35:17,822 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-10-25 10:35:17,823 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-10-25 10:35:17,837 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 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)
[2021-10-25 10:35:17,837 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-10-25 10:35:18,433 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-25 10:35:18,434 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-10-25 10:35:18,435 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] ===
[2021-10-25 10:35:18,436 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-25 10:35:18,436 INFO  L82        PathProgramCache]: Analyzing trace with hash -280535298, now seen corresponding path program 1 times
[2021-10-25 10:35:18,437 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-25 10:35:18,437 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644686216]
[2021-10-25 10:35:18,437 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-25 10:35:18,437 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-25 10:35:18,478 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-25 10:35:18,513 INFO  L134       CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked.
[2021-10-25 10:35:18,514 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-25 10:35:18,514 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644686216]
[2021-10-25 10:35:18,514 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644686216] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-25 10:35:18,514 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-25 10:35:18,514 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-10-25 10:35:18,514 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604826653]
[2021-10-25 10:35:18,515 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-25 10:35:18,516 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-25 10:35:18,516 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-25 10:35:18,516 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-25 10:35:18,516 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-10-25 10:35:18,516 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-10-25 10:35:18,516 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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)
[2021-10-25 10:35:18,517 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-10-25 10:35:18,517 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-10-25 10:35:18,555 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-25 10:35:18,555 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-25 10:35:18,555 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-10-25 10:35:18,555 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] ===
[2021-10-25 10:35:18,556 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-25 10:35:18,556 INFO  L82        PathProgramCache]: Analyzing trace with hash 2063711288, now seen corresponding path program 1 times
[2021-10-25 10:35:18,557 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-25 10:35:18,557 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664843802]
[2021-10-25 10:35:18,557 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-25 10:35:18,557 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-25 10:35:18,713 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-25 10:35:19,094 INFO  L134       CoverageAnalysis]: Checked inductivity of 202 backedges. 76 proven. 59 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked.
[2021-10-25 10:35:19,094 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-25 10:35:19,094 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664843802]
[2021-10-25 10:35:19,094 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664843802] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-25 10:35:19,095 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220134681]
[2021-10-25 10:35:19,095 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-25 10:35:19,095 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-25 10:35:19,095 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-10-25 10:35:19,140 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)
[2021-10-25 10:35:19,141 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2021-10-25 10:35:19,210 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-25 10:35:19,214 WARN  L261         TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 152 conjunts are in the unsatisfiable core
[2021-10-25 10:35:19,220 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-25 10:35:20,022 INFO  L134       CoverageAnalysis]: Checked inductivity of 202 backedges. 2 proven. 133 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked.
[2021-10-25 10:35:20,023 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [220134681] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-25 10:35:20,023 INFO  L186   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-25 10:35:20,023 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 14
[2021-10-25 10:35:20,023 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421617951]
[2021-10-25 10:35:20,025 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2021-10-25 10:35:20,025 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-25 10:35:20,026 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2021-10-25 10:35:20,026 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210
[2021-10-25 10:35:20,027 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-10-25 10:35:20,027 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-10-25 10:35:20,027 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 15 states, 15 states have (on average 6.6) internal successors, (99), 14 states have internal predecessors, (99), 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)
[2021-10-25 10:35:20,028 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-10-25 10:35:20,028 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-10-25 10:35:20,030 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-10-25 10:35:20,418 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-25 10:35:20,418 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-25 10:35:20,418 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2021-10-25 10:35:20,438 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2021-10-25 10:35:20,638 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
[2021-10-25 10:35:20,639 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] ===
[2021-10-25 10:35:20,639 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-25 10:35:20,639 INFO  L82        PathProgramCache]: Analyzing trace with hash -1629437764, now seen corresponding path program 2 times
[2021-10-25 10:35:20,639 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-25 10:35:20,640 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419886582]
[2021-10-25 10:35:20,640 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-25 10:35:20,640 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-25 10:35:20,687 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-25 10:35:21,161 INFO  L134       CoverageAnalysis]: Checked inductivity of 437 backedges. 209 proven. 120 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked.
[2021-10-25 10:35:21,162 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-25 10:35:21,162 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419886582]
[2021-10-25 10:35:21,162 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419886582] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-25 10:35:21,162 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341418363]
[2021-10-25 10:35:21,162 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2021-10-25 10:35:21,162 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-25 10:35:21,162 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-10-25 10:35:21,163 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)
[2021-10-25 10:35:21,195 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2021-10-25 10:35:21,335 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-10-25 10:35:21,335 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-25 10:35:21,338 INFO  L263         TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 135 conjunts are in the unsatisfiable core
[2021-10-25 10:35:21,342 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-25 10:35:22,151 INFO  L134       CoverageAnalysis]: Checked inductivity of 437 backedges. 209 proven. 120 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked.
[2021-10-25 10:35:22,152 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [341418363] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-25 10:35:22,152 INFO  L186   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-25 10:35:22,152 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9
[2021-10-25 10:35:22,153 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186958962]
[2021-10-25 10:35:22,153 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2021-10-25 10:35:22,153 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-25 10:35:22,154 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2021-10-25 10:35:22,154 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=46, Unknown=0, NotChecked=0, Total=90
[2021-10-25 10:35:22,154 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-10-25 10:35:22,154 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-10-25 10:35:22,154 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 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)
[2021-10-25 10:35:22,155 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-10-25 10:35:22,155 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-10-25 10:35:22,155 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. 
[2021-10-25 10:35:22,155 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-10-25 10:35:23,903 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-25 10:35:23,903 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-25 10:35:23,903 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2021-10-25 10:35:23,904 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2021-10-25 10:35:23,939 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2021-10-25 10:35:24,119 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
[2021-10-25 10:35:24,120 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT] ===
[2021-10-25 10:35:24,120 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-25 10:35:24,120 INFO  L82        PathProgramCache]: Analyzing trace with hash 992921520, now seen corresponding path program 1 times
[2021-10-25 10:35:24,120 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-25 10:35:24,120 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560876146]
[2021-10-25 10:35:24,120 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-25 10:35:24,121 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-25 10:35:24,796 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-25 10:35:31,207 INFO  L134       CoverageAnalysis]: Checked inductivity of 18852 backedges. 7585 proven. 5960 refuted. 0 times theorem prover too weak. 5307 trivial. 0 not checked.
[2021-10-25 10:35:31,208 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-25 10:35:31,208 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560876146]
[2021-10-25 10:35:31,208 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560876146] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-25 10:35:31,208 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103061016]
[2021-10-25 10:35:31,208 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-25 10:35:31,208 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-25 10:35:31,208 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-10-25 10:35:31,209 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)
[2021-10-25 10:35:31,210 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2021-10-25 10:35:31,858 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-25 10:35:31,896 WARN  L261         TraceCheckSpWp]: Trace formula consists of 1759 conjuncts, 1434 conjunts are in the unsatisfiable core
[2021-10-25 10:35:31,909 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-25 10:35:36,105 INFO  L134       CoverageAnalysis]: Checked inductivity of 18852 backedges. 7 proven. 13538 refuted. 0 times theorem prover too weak. 5307 trivial. 0 not checked.
[2021-10-25 10:35:36,106 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [103061016] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-25 10:35:36,106 INFO  L186   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-25 10:35:36,106 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18
[2021-10-25 10:35:36,106 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372191871]
[2021-10-25 10:35:36,107 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2021-10-25 10:35:36,107 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-25 10:35:36,108 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-10-25 10:35:36,108 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342
[2021-10-25 10:35:36,108 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-10-25 10:35:36,108 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-10-25 10:35:36,108 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 19 states, 19 states have (on average 8.421052631578947) internal successors, (160), 18 states have internal predecessors, (160), 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)
[2021-10-25 10:35:36,108 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-10-25 10:35:36,109 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-10-25 10:35:36,109 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. 
[2021-10-25 10:35:36,109 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2021-10-25 10:35:36,109 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.