/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/BuchiAutomizerCInline.xml -s ../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-syntacticLbe.epf -i ../../../trunk/examples/svcomp/weaver/parallel-ticket-8.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-0d686a6 [2022-07-26 14:14:19,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-26 14:14:19,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-26 14:14:19,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-26 14:14:19,736 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-26 14:14:19,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-26 14:14:19,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-26 14:14:19,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-26 14:14:19,744 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-26 14:14:19,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-26 14:14:19,748 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-26 14:14:19,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-26 14:14:19,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-26 14:14:19,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-26 14:14:19,753 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-26 14:14:19,755 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-26 14:14:19,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-26 14:14:19,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-26 14:14:19,760 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-26 14:14:19,763 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-26 14:14:19,763 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-26 14:14:19,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-26 14:14:19,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-26 14:14:19,767 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-26 14:14:19,769 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-26 14:14:19,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-07-26 14:14:19,777 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-26 14:14:19,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-26 14:14:19,781 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-26 14:14:19,782 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-syntacticLbe.epf [2022-07-26 14:14:19,801 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-26 14:14:19,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-26 14:14:19,801 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-26 14:14:19,801 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-26 14:14:19,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-26 14:14:19,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-26 14:14:19,802 INFO L138 SettingsManager]: * Use SBE=true [2022-07-26 14:14:19,802 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-26 14:14:19,802 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-26 14:14:19,802 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-26 14:14:19,802 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-26 14:14:19,802 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-26 14:14:19,802 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-26 14:14:19,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-26 14:14:19,803 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-26 14:14:19,803 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-26 14:14:19,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-26 14:14:19,803 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-26 14:14:19,827 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-26 14:14:19,827 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-26 14:14:19,827 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-26 14:14:19,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-26 14:14:19,828 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-26 14:14:19,828 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-26 14:14:19,828 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-26 14:14:19,828 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-26 14:14:19,828 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-26 14:14:19,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-26 14:14:19,828 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-26 14:14:19,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-26 14:14:19,828 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-26 14:14:19,828 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-07-26 14:14:19,829 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-26 14:14:19,829 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-26 14:14:20,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-26 14:14:20,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-26 14:14:20,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-26 14:14:20,018 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-26 14:14:20,019 INFO L275 PluginConnector]: CDTParser initialized [2022-07-26 14:14:20,020 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-8.wvr.c [2022-07-26 14:14:20,071 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd6b2ad7f/d69cd22b64ba48e1900ec3efd8006209/FLAGd42e2e510 [2022-07-26 14:14:20,469 INFO L306 CDTParser]: Found 1 translation units. [2022-07-26 14:14:20,469 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-8.wvr.c [2022-07-26 14:14:20,473 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd6b2ad7f/d69cd22b64ba48e1900ec3efd8006209/FLAGd42e2e510 [2022-07-26 14:14:20,483 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd6b2ad7f/d69cd22b64ba48e1900ec3efd8006209 [2022-07-26 14:14:20,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-26 14:14:20,486 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-26 14:14:20,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-26 14:14:20,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-26 14:14:20,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-26 14:14:20,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.07 02:14:20" (1/1) ... [2022-07-26 14:14:20,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bf8fcd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:14:20, skipping insertion in model container [2022-07-26 14:14:20,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.07 02:14:20" (1/1) ... [2022-07-26 14:14:20,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-26 14:14:20,522 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-26 14:14:20,683 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-8.wvr.c[5274,5287] [2022-07-26 14:14:20,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-26 14:14:20,691 INFO L203 MainTranslator]: Completed pre-run [2022-07-26 14:14:20,720 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-8.wvr.c[5274,5287] [2022-07-26 14:14:20,721 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-26 14:14:20,731 INFO L208 MainTranslator]: Completed translation [2022-07-26 14:14:20,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:14:20 WrapperNode [2022-07-26 14:14:20,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-26 14:14:20,734 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-26 14:14:20,734 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-26 14:14:20,734 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-26 14:14:20,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:14:20" (1/1) ... [2022-07-26 14:14:20,746 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:14:20" (1/1) ... [2022-07-26 14:14:20,769 INFO L137 Inliner]: procedures = 27, calls = 130, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 347 [2022-07-26 14:14:20,770 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-26 14:14:20,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-26 14:14:20,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-26 14:14:20,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-26 14:14:20,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:14:20" (1/1) ... [2022-07-26 14:14:20,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:14:20" (1/1) ... [2022-07-26 14:14:20,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:14:20" (1/1) ... [2022-07-26 14:14:20,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:14:20" (1/1) ... [2022-07-26 14:14:20,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:14:20" (1/1) ... [2022-07-26 14:14:20,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:14:20" (1/1) ... [2022-07-26 14:14:20,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:14:20" (1/1) ... [2022-07-26 14:14:20,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-26 14:14:20,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-26 14:14:20,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-26 14:14:20,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-26 14:14:20,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:14:20" (1/1) ... [2022-07-26 14:14:20,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 14:14:20,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 14:14:20,858 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 14:14:20,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-26 14:14:20,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-26 14:14:20,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-26 14:14:20,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-26 14:14:20,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-26 14:14:20,901 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-26 14:14:20,901 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-26 14:14:20,901 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-26 14:14:20,904 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-26 14:14:20,904 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-07-26 14:14:20,905 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-07-26 14:14:20,905 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-07-26 14:14:20,905 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-07-26 14:14:20,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-26 14:14:20,905 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-07-26 14:14:20,905 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-07-26 14:14:20,905 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-07-26 14:14:20,905 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-07-26 14:14:20,905 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2022-07-26 14:14:20,905 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2022-07-26 14:14:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2022-07-26 14:14:20,906 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2022-07-26 14:14:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-26 14:14:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-26 14:14:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-26 14:14:20,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-26 14:14:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-26 14:14:20,907 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-26 14:14:20,997 INFO L234 CfgBuilder]: Building ICFG [2022-07-26 14:14:20,999 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-26 14:14:21,357 INFO L275 CfgBuilder]: Performing block encoding [2022-07-26 14:14:21,478 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-26 14:14:21,478 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-26 14:14:21,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.07 02:14:21 BoogieIcfgContainer [2022-07-26 14:14:21,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-26 14:14:21,482 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-26 14:14:21,483 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-26 14:14:21,486 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-26 14:14:21,486 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 14:14:21,486 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.07 02:14:20" (1/3) ... [2022-07-26 14:14:21,487 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5cf7b355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.07 02:14:21, skipping insertion in model container [2022-07-26 14:14:21,487 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 14:14:21,487 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:14:20" (2/3) ... [2022-07-26 14:14:21,488 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5cf7b355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.07 02:14:21, skipping insertion in model container [2022-07-26 14:14:21,488 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 14:14:21,488 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.07 02:14:21" (3/3) ... [2022-07-26 14:14:21,489 INFO L322 chiAutomizerObserver]: Analyzing ICFG parallel-ticket-8.wvr.c [2022-07-26 14:14:21,604 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-07-26 14:14:21,629 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 245 places, 230 transitions, 524 flow [2022-07-26 14:14:21,703 INFO L129 PetriNetUnfolder]: 2/214 cut-off events. [2022-07-26 14:14:21,704 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-07-26 14:14:21,707 INFO L84 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 214 events. 2/214 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 103 event pairs, 0 based on Foata normal form. 0/212 useless extension candidates. Maximal degree in co-relation 166. Up to 2 conditions per place. [2022-07-26 14:14:21,708 INFO L82 GeneralOperation]: Start removeDead. Operand has 245 places, 230 transitions, 524 flow [2022-07-26 14:14:21,748 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 237 places, 214 transitions, 476 flow [2022-07-26 14:14:21,751 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-07-26 14:14:21,759 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 237 places, 214 transitions, 476 flow [2022-07-26 14:14:21,763 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 237 places, 214 transitions, 476 flow [2022-07-26 14:14:21,764 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 237 places, 214 transitions, 476 flow [2022-07-26 14:14:21,827 INFO L129 PetriNetUnfolder]: 2/214 cut-off events. [2022-07-26 14:14:21,827 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-07-26 14:14:21,828 INFO L84 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 214 events. 2/214 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 103 event pairs, 0 based on Foata normal form. 0/212 useless extension candidates. Maximal degree in co-relation 166. Up to 2 conditions per place. [2022-07-26 14:14:21,831 INFO L116 LiptonReduction]: Number of co-enabled transitions 5502 [2022-07-26 14:14:31,461 INFO L131 LiptonReduction]: Checked pairs total: 31152 [2022-07-26 14:14:31,461 INFO L133 LiptonReduction]: Total number of compositions: 160 [2022-07-26 14:14:31,477 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2022-07-26 14:14:31,477 INFO L302 stractBuchiCegarLoop]: Hoare is false [2022-07-26 14:14:31,477 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-26 14:14:31,477 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-26 14:14:31,478 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-26 14:14:31,478 INFO L306 stractBuchiCegarLoop]: Difference is false [2022-07-26 14:14:31,478 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-26 14:14:31,478 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-26 14:14:31,479 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states