/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-MCRwithDepranks-BasicCegarLoop.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-10 03:21:04,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 03:21:04,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 03:21:04,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 03:21:04,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 03:21:04,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 03:21:04,298 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 03:21:04,303 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 03:21:04,304 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 03:21:04,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 03:21:04,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 03:21:04,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 03:21:04,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 03:21:04,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 03:21:04,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 03:21:04,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 03:21:04,308 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 03:21:04,308 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 03:21:04,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 03:21:04,310 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 03:21:04,311 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 03:21:04,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 03:21:04,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 03:21:04,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 03:21:04,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-10 03:21:04,332 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 03:21:04,332 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 03:21:04,333 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 03:21:04,336 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-MCRwithDepranks-BasicCegarLoop.epf [2022-02-10 03:21:04,365 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 03:21:04,365 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 03:21:04,365 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 03:21:04,365 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 03:21:04,366 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 03:21:04,366 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 03:21:04,366 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 03:21:04,366 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 03:21:04,366 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 03:21:04,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 03:21:04,367 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 03:21:04,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 03:21:04,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 03:21:04,367 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 03:21:04,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 03:21:04,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 03:21:04,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 03:21:04,368 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 03:21:04,368 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 03:21:04,368 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 03:21:04,368 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 03:21:04,368 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 03:21:04,368 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 03:21:04,368 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 03:21:04,369 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 03:21:04,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 03:21:04,370 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 03:21:04,370 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 03:21:04,370 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 03:21:04,370 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 03:21:04,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 03:21:04,370 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 03:21:04,370 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 03:21:04,370 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-10 03:21:04,370 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 03:21:04,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 03:21:04,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 03:21:04,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 03:21:04,548 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-10 03:21:04,551 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-10 03:21:04,552 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-2.wvr.bpl [2022-02-10 03:21:04,552 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-2.wvr.bpl' [2022-02-10 03:21:04,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 03:21:04,583 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-10 03:21:04,584 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 03:21:04,584 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 03:21:04,584 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 03:21:04,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "parallel-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 03:21:04" (1/1) ... [2022-02-10 03:21:04,599 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "parallel-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 03:21:04" (1/1) ... [2022-02-10 03:21:04,603 INFO L137 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-10 03:21:04,604 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 03:21:04,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 03:21:04,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 03:21:04,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 03:21:04,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "parallel-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 03:21:04" (1/1) ... [2022-02-10 03:21:04,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "parallel-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 03:21:04" (1/1) ... [2022-02-10 03:21:04,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "parallel-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 03:21:04" (1/1) ... [2022-02-10 03:21:04,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "parallel-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 03:21:04" (1/1) ... [2022-02-10 03:21:04,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "parallel-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 03:21:04" (1/1) ... [2022-02-10 03:21:04,616 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "parallel-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 03:21:04" (1/1) ... [2022-02-10 03:21:04,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "parallel-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 03:21:04" (1/1) ... [2022-02-10 03:21:04,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 03:21:04,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 03:21:04,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 03:21:04,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 03:21:04,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "parallel-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 03:21:04" (1/1) ... [2022-02-10 03:21:04,624 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 03:21:04,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 03:21:04,641 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) [2022-02-10 03:21:04,664 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 [2022-02-10 03:21:04,676 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-10 03:21:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-10 03:21:04,677 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-10 03:21:04,677 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-10 03:21:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-10 03:21:04,677 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-10 03:21:04,677 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-10 03:21:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 03:21:04,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 03:21:04,677 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-10 03:21:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-10 03:21:04,677 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-10 03:21:04,677 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-02-10 03:21:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-10 03:21:04,678 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-10 03:21:04,678 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2022-02-10 03:21:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-02-10 03:21:04,678 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-02-10 03:21:04,678 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2022-02-10 03:21:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-02-10 03:21:04,678 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-02-10 03:21:04,679 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 03:21:04,714 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 03:21:04,715 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 03:21:04,845 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 03:21:04,860 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 03:21:04,860 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-02-10 03:21:04,861 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2022-02-10 03:21:04,861 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread3EXIT is neither atomic block end nor error location. [2022-02-10 03:21:04,861 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread5EXIT is neither atomic block end nor error location. [2022-02-10 03:21:04,861 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread6EXIT is neither atomic block end nor error location. [2022-02-10 03:21:04,862 INFO L202 PluginConnector]: Adding new model parallel-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 03:21:04 BoogieIcfgContainer [2022-02-10 03:21:04,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 03:21:04,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 03:21:04,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 03:21:04,866 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 03:21:04,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parallel-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 03:21:04" (1/2) ... [2022-02-10 03:21:04,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e564302 and model type parallel-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 03:21:04, skipping insertion in model container [2022-02-10 03:21:04,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parallel-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 03:21:04" (2/2) ... [2022-02-10 03:21:04,868 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-sum-2.wvr.bpl [2022-02-10 03:21:04,871 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 03:21:04,871 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 03:21:04,871 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 03:21:04,871 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 03:21:04,928 INFO L148 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-02-10 03:21:04,956 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 03:21:04,961 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, 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 [2022-02-10 03:21:04,961 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-02-10 03:21:04,969 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 66 places, 55 transitions, 182 flow [2022-02-10 03:21:05,111 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 445 states, 444 states have (on average 3.7905405405405403) internal successors, (1683), 444 states have internal predecessors, (1683), 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)