/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-noLbe.epf -i ../../../trunk/examples/svcomp/pthread-atomic/scull.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-0d686a6 [2022-07-26 13:22:10,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-26 13:22:10,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-26 13:22:10,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-26 13:22:10,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-26 13:22:10,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-26 13:22:10,536 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-26 13:22:10,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-26 13:22:10,541 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-26 13:22:10,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-26 13:22:10,543 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-26 13:22:10,544 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-26 13:22:10,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-26 13:22:10,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-26 13:22:10,552 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-26 13:22:10,553 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-26 13:22:10,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-26 13:22:10,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-26 13:22:10,554 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-26 13:22:10,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-26 13:22:10,556 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-26 13:22:10,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-26 13:22:10,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-26 13:22:10,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-26 13:22:10,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-26 13:22:10,560 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-07-26 13:22:10,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-26 13:22:10,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-26 13:22:10,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-26 13:22:10,567 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2022-07-26 13:22:10,595 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-26 13:22:10,595 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-26 13:22:10,595 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-26 13:22:10,595 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-26 13:22:10,596 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-26 13:22:10,596 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-26 13:22:10,596 INFO L138 SettingsManager]: * Use SBE=true [2022-07-26 13:22:10,596 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-26 13:22:10,596 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-26 13:22:10,596 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-26 13:22:10,596 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-26 13:22:10,596 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-26 13:22:10,596 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-26 13:22:10,597 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-26 13:22:10,597 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-26 13:22:10,597 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-26 13:22:10,597 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-26 13:22:10,597 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-26 13:22:10,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-26 13:22:10,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-26 13:22:10,597 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-26 13:22:10,597 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-26 13:22:10,597 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-26 13:22:10,597 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-26 13:22:10,597 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-26 13:22:10,598 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-26 13:22:10,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-26 13:22:10,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-26 13:22:10,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-26 13:22:10,598 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-26 13:22:10,598 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-26 13:22:10,598 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-26 13:22:10,599 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-26 13:22:10,599 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-26 13:22:10,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-26 13:22:10,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-26 13:22:10,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-26 13:22:10,793 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-26 13:22:10,795 INFO L275 PluginConnector]: CDTParser initialized [2022-07-26 13:22:10,796 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/scull.i [2022-07-26 13:22:10,837 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60ada4a74/0ae0d7801dbf495dbcab95c244237a6d/FLAG4f1e93e50 [2022-07-26 13:22:11,233 INFO L306 CDTParser]: Found 1 translation units. [2022-07-26 13:22:11,233 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/scull.i [2022-07-26 13:22:11,242 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60ada4a74/0ae0d7801dbf495dbcab95c244237a6d/FLAG4f1e93e50 [2022-07-26 13:22:11,250 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60ada4a74/0ae0d7801dbf495dbcab95c244237a6d [2022-07-26 13:22:11,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-26 13:22:11,253 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-26 13:22:11,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-26 13:22:11,254 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-26 13:22:11,256 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-26 13:22:11,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.07 01:22:11" (1/1) ... [2022-07-26 13:22:11,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7db9931c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:22:11, skipping insertion in model container [2022-07-26 13:22:11,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.07 01:22:11" (1/1) ... [2022-07-26 13:22:11,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-26 13:22:11,285 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-26 13:22:11,491 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/scull.i[30879,30892] [2022-07-26 13:22:11,497 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/scull.i[31740,31753] [2022-07-26 13:22:11,500 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/scull.i[32508,32521] [2022-07-26 13:22:11,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-26 13:22:11,525 INFO L203 MainTranslator]: Completed pre-run [2022-07-26 13:22:11,559 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/scull.i[30879,30892] [2022-07-26 13:22:11,562 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/scull.i[31740,31753] [2022-07-26 13:22:11,564 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/scull.i[32508,32521] [2022-07-26 13:22:11,578 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-26 13:22:11,605 INFO L208 MainTranslator]: Completed translation [2022-07-26 13:22:11,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:22:11 WrapperNode [2022-07-26 13:22:11,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-26 13:22:11,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-26 13:22:11,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-26 13:22:11,606 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-26 13:22:11,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:22:11" (1/1) ... [2022-07-26 13:22:11,629 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:22:11" (1/1) ... [2022-07-26 13:22:11,660 INFO L137 Inliner]: procedures = 185, calls = 58, calls flagged for inlining = 29, calls inlined = 25, statements flattened = 342 [2022-07-26 13:22:11,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-26 13:22:11,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-26 13:22:11,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-26 13:22:11,662 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-26 13:22:11,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:22:11" (1/1) ... [2022-07-26 13:22:11,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:22:11" (1/1) ... [2022-07-26 13:22:11,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:22:11" (1/1) ... [2022-07-26 13:22:11,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:22:11" (1/1) ... [2022-07-26 13:22:11,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:22:11" (1/1) ... [2022-07-26 13:22:11,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:22:11" (1/1) ... [2022-07-26 13:22:11,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:22:11" (1/1) ... [2022-07-26 13:22:11,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-26 13:22:11,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-26 13:22:11,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-26 13:22:11,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-26 13:22:11,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:22:11" (1/1) ... [2022-07-26 13:22:11,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:22:11,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:22:11,739 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 13:22:11,754 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 13:22:11,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-26 13:22:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-26 13:22:11,772 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-26 13:22:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-26 13:22:11,772 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-26 13:22:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-26 13:22:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-26 13:22:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-26 13:22:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure loader [2022-07-26 13:22:11,772 INFO L138 BoogieDeclarations]: Found implementation of procedure loader [2022-07-26 13:22:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-26 13:22:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-26 13:22:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-26 13:22:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-26 13:22:11,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-26 13:22:11,773 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 13:22:11,897 INFO L234 CfgBuilder]: Building ICFG [2022-07-26 13:22:11,897 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-26 13:22:11,953 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L890: assume { :end_inline_scull_trim } true; [2022-07-26 13:22:11,953 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L890-1: havoc scull_cleanup_module_#t~ret28#1; [2022-07-26 13:22:11,953 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint scull_trim_returnLabel#1: scull_cleanup_module_#t~ret28#1 := scull_trim_#res#1; [2022-07-26 13:22:11,953 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L887: assume { :end_inline_scull_cleanup_module } true; [2022-07-26 13:22:11,953 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L898: scull_init_module_#res#1 := scull_init_module_~result~0#1; [2022-07-26 13:22:12,245 INFO L275 CfgBuilder]: Performing block encoding [2022-07-26 13:22:12,254 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-26 13:22:12,254 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-26 13:22:12,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.07 01:22:12 BoogieIcfgContainer [2022-07-26 13:22:12,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-26 13:22:12,257 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-26 13:22:12,257 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-26 13:22:12,259 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-26 13:22:12,260 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 13:22:12,260 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.07 01:22:11" (1/3) ... [2022-07-26 13:22:12,260 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76e3b243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.07 01:22:12, skipping insertion in model container [2022-07-26 13:22:12,260 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 13:22:12,260 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:22:11" (2/3) ... [2022-07-26 13:22:12,261 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76e3b243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.07 01:22:12, skipping insertion in model container [2022-07-26 13:22:12,261 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 13:22:12,261 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.07 01:22:12" (3/3) ... [2022-07-26 13:22:12,262 INFO L322 chiAutomizerObserver]: Analyzing ICFG scull.i [2022-07-26 13:22:12,375 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-07-26 13:22:12,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 385 places, 394 transitions, 812 flow [2022-07-26 13:22:12,518 INFO L129 PetriNetUnfolder]: 16/388 cut-off events. [2022-07-26 13:22:12,518 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-07-26 13:22:12,544 INFO L84 FinitePrefix]: Finished finitePrefix Result has 401 conditions, 388 events. 16/388 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 862 event pairs, 0 based on Foata normal form. 0/372 useless extension candidates. Maximal degree in co-relation 339. Up to 4 conditions per place. [2022-07-26 13:22:12,545 INFO L82 GeneralOperation]: Start removeDead. Operand has 385 places, 394 transitions, 812 flow [2022-07-26 13:22:12,568 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 382 places, 388 transitions, 794 flow [2022-07-26 13:22:12,577 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2022-07-26 13:22:12,577 INFO L302 stractBuchiCegarLoop]: Hoare is false [2022-07-26 13:22:12,577 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-26 13:22:12,577 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-26 13:22:12,578 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-26 13:22:12,578 INFO L306 stractBuchiCegarLoop]: Difference is false [2022-07-26 13:22:12,578 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-26 13:22:12,578 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-26 13:22:12,579 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states