/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/weaver/parallel-parallel-sum-1-dsl.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-21b0908 [2022-07-22 11:53:05,665 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 11:53:05,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 11:53:05,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 11:53:05,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 11:53:05,750 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 11:53:05,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 11:53:05,765 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 11:53:05,767 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 11:53:05,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 11:53:05,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 11:53:05,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 11:53:05,778 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 11:53:05,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 11:53:05,783 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 11:53:05,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 11:53:05,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 11:53:05,794 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 11:53:05,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 11:53:05,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 11:53:05,810 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 11:53:05,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 11:53:05,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 11:53:05,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 11:53:05,818 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 11:53:05,828 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-07-22 11:53:05,833 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 11:53:05,836 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 11:53:05,837 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 11:53:05,838 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 11:53:05,839 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 11:53:05,839 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 11:53:05,840 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 11:53:05,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 11:53:05,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 11:53:05,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 11:53:05,846 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 11:53:05,855 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2022-07-22 11:53:05,902 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 11:53:05,903 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 11:53:05,904 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 11:53:05,904 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 11:53:05,905 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 11:53:05,906 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 11:53:05,906 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 11:53:05,906 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 11:53:05,906 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 11:53:05,907 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 11:53:05,908 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 11:53:05,908 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 11:53:05,908 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 11:53:05,908 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 11:53:05,908 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 11:53:05,909 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 11:53:05,909 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 11:53:05,909 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 11:53:05,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 11:53:05,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 11:53:05,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 11:53:05,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 11:53:05,910 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 11:53:05,910 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 11:53:05,910 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 11:53:05,910 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 11:53:05,911 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 11:53:05,911 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 11:53:05,911 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 11:53:05,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 11:53:05,912 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 11:53:05,912 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 11:53:05,915 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 11:53:05,915 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-22 11:53:06,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 11:53:06,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 11:53:06,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 11:53:06,389 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 11:53:06,390 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 11:53:06,392 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-07-22 11:53:06,498 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/147609d80/757daa85e7144c389e1a46dcdf8e466f/FLAG612b49cd2 [2022-07-22 11:53:07,131 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 11:53:07,131 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-07-22 11:53:07,148 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/147609d80/757daa85e7144c389e1a46dcdf8e466f/FLAG612b49cd2 [2022-07-22 11:53:07,431 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/147609d80/757daa85e7144c389e1a46dcdf8e466f [2022-07-22 11:53:07,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 11:53:07,443 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-22 11:53:07,448 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 11:53:07,448 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 11:53:07,455 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 11:53:07,456 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:53:07" (1/1) ... [2022-07-22 11:53:07,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5759b3e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:53:07, skipping insertion in model container [2022-07-22 11:53:07,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:53:07" (1/1) ... [2022-07-22 11:53:07,469 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 11:53:07,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 11:53:07,879 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-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-07-22 11:53:07,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 11:53:07,914 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 11:53:07,985 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-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-07-22 11:53:07,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 11:53:08,015 INFO L208 MainTranslator]: Completed translation [2022-07-22 11:53:08,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:53:08 WrapperNode [2022-07-22 11:53:08,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 11:53:08,019 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 11:53:08,019 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 11:53:08,019 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 11:53:08,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:53:08" (1/1) ... [2022-07-22 11:53:08,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:53:08" (1/1) ... [2022-07-22 11:53:08,130 INFO L137 Inliner]: procedures = 29, calls = 95, calls flagged for inlining = 21, calls inlined = 27, statements flattened = 275 [2022-07-22 11:53:08,131 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 11:53:08,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 11:53:08,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 11:53:08,133 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 11:53:08,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:53:08" (1/1) ... [2022-07-22 11:53:08,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:53:08" (1/1) ... [2022-07-22 11:53:08,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:53:08" (1/1) ... [2022-07-22 11:53:08,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:53:08" (1/1) ... [2022-07-22 11:53:08,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:53:08" (1/1) ... [2022-07-22 11:53:08,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:53:08" (1/1) ... [2022-07-22 11:53:08,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:53:08" (1/1) ... [2022-07-22 11:53:08,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 11:53:08,227 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 11:53:08,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 11:53:08,228 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 11:53:08,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:53:08" (1/1) ... [2022-07-22 11:53:08,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 11:53:08,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 11:53:08,274 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) [2022-07-22 11:53:08,296 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 [2022-07-22 11:53:08,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 11:53:08,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 11:53:08,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 11:53:08,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 11:53:08,347 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-22 11:53:08,347 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-22 11:53:08,347 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-22 11:53:08,347 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-22 11:53:08,347 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-07-22 11:53:08,347 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-07-22 11:53:08,348 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-07-22 11:53:08,348 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-07-22 11:53:08,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 11:53:08,348 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-07-22 11:53:08,348 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-07-22 11:53:08,348 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-07-22 11:53:08,349 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-07-22 11:53:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-22 11:53:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-22 11:53:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 11:53:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 11:53:08,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 11:53:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 11:53:08,351 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-22 11:53:08,475 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 11:53:08,478 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 11:53:09,124 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 11:53:09,501 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 11:53:09,501 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-07-22 11:53:09,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:53:09 BoogieIcfgContainer [2022-07-22 11:53:09,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 11:53:09,509 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 11:53:09,509 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 11:53:09,514 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 11:53:09,515 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 11:53:09,515 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 11:53:07" (1/3) ... [2022-07-22 11:53:09,516 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@497e5cb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 11:53:09, skipping insertion in model container [2022-07-22 11:53:09,516 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 11:53:09,517 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:53:08" (2/3) ... [2022-07-22 11:53:09,517 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@497e5cb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 11:53:09, skipping insertion in model container [2022-07-22 11:53:09,517 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 11:53:09,517 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:53:09" (3/3) ... [2022-07-22 11:53:09,519 INFO L322 chiAutomizerObserver]: Analyzing ICFG parallel-parallel-sum-1-dsl.wvr.c [2022-07-22 11:53:09,722 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-07-22 11:53:09,772 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 250 places, 255 transitions, 582 flow [2022-07-22 11:53:09,953 INFO L129 PetriNetUnfolder]: 18/221 cut-off events. [2022-07-22 11:53:09,954 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-07-22 11:53:09,963 INFO L84 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 221 events. 18/221 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 281 event pairs, 0 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 190. Up to 3 conditions per place. [2022-07-22 11:53:09,963 INFO L82 GeneralOperation]: Start removeDead. Operand has 250 places, 255 transitions, 582 flow [2022-07-22 11:53:09,983 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 222 places, 221 transitions, 490 flow [2022-07-22 11:53:09,999 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 11:53:09,999 INFO L301 stractBuchiCegarLoop]: Hoare is false [2022-07-22 11:53:09,999 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 11:53:10,000 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 11:53:10,000 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 11:53:10,000 INFO L305 stractBuchiCegarLoop]: Difference is false [2022-07-22 11:53:10,000 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 11:53:10,000 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 11:53:10,002 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-07-22 11:55:26,949 INFO L131 ngComponentsAnalysis]: Automaton has 79554 accepting balls. 605546 [2022-07-22 11:55:26,951 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 11:55:26,951 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 11:55:27,017 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:55:27,017 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-07-22 11:55:27,018 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 11:55:27,018 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 709484 states, but on-demand construction may add more states