/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/chl-nzb-file-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-21b0908 [2022-07-22 11:49:52,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 11:49:52,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 11:49:52,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 11:49:52,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 11:49:52,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 11:49:52,157 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 11:49:52,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 11:49:52,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 11:49:52,187 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 11:49:52,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 11:49:52,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 11:49:52,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 11:49:52,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 11:49:52,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 11:49:52,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 11:49:52,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 11:49:52,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 11:49:52,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 11:49:52,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 11:49:52,223 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 11:49:52,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 11:49:52,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 11:49:52,229 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 11:49:52,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 11:49:52,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 11:49:52,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 11:49:52,241 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 11:49:52,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 11:49:52,243 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 11:49:52,245 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 11:49:52,245 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 11:49:52,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 11:49:52,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 11:49:52,250 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 11:49:52,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 11:49:52,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 11:49:52,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 11:49:52,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 11:49:52,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 11:49:52,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 11:49:52,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 11:49:52,265 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 11:49:52,322 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 11:49:52,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 11:49:52,324 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 11:49:52,324 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 11:49:52,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 11:49:52,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 11:49:52,327 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 11:49:52,327 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 11:49:52,327 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 11:49:52,328 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 11:49:52,329 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 11:49:52,329 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 11:49:52,329 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 11:49:52,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 11:49:52,330 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 11:49:52,330 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 11:49:52,330 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 11:49:52,330 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 11:49:52,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 11:49:52,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 11:49:52,331 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 11:49:52,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 11:49:52,331 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 11:49:52,332 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 11:49:52,332 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 11:49:52,332 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 11:49:52,332 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 11:49:52,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 11:49:52,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 11:49:52,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 11:49:52,334 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 11:49:52,334 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 11:49:52,337 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 11:49:52,337 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-22 11:49:52,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 11:49:52,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 11:49:52,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 11:49:52,814 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 11:49:52,815 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 11:49:52,817 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-nzb-file-trans.wvr.c [2022-07-22 11:49:52,911 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae83cf3ec/855dd1e784c84eec951cb67c7d8734e9/FLAG113ae4d0b [2022-07-22 11:49:53,712 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 11:49:53,713 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-nzb-file-trans.wvr.c [2022-07-22 11:49:53,725 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae83cf3ec/855dd1e784c84eec951cb67c7d8734e9/FLAG113ae4d0b [2022-07-22 11:49:53,999 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae83cf3ec/855dd1e784c84eec951cb67c7d8734e9 [2022-07-22 11:49:54,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 11:49:54,008 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-22 11:49:54,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 11:49:54,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 11:49:54,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 11:49:54,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:49:54" (1/1) ... [2022-07-22 11:49:54,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5348dfcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:49:54, skipping insertion in model container [2022-07-22 11:49:54,021 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:49:54" (1/1) ... [2022-07-22 11:49:54,029 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 11:49:54,058 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 11:49:54,299 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/chl-nzb-file-trans.wvr.c[6450,6463] [2022-07-22 11:49:54,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 11:49:54,318 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 11:49:54,424 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/chl-nzb-file-trans.wvr.c[6450,6463] [2022-07-22 11:49:54,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 11:49:54,454 INFO L208 MainTranslator]: Completed translation [2022-07-22 11:49:54,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:49:54 WrapperNode [2022-07-22 11:49:54,455 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 11:49:54,456 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 11:49:54,456 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 11:49:54,457 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 11:49:54,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:49:54" (1/1) ... [2022-07-22 11:49:54,497 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:49:54" (1/1) ... [2022-07-22 11:49:54,561 INFO L137 Inliner]: procedures = 26, calls = 76, calls flagged for inlining = 28, calls inlined = 42, statements flattened = 628 [2022-07-22 11:49:54,562 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 11:49:54,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 11:49:54,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 11:49:54,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 11:49:54,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:49:54" (1/1) ... [2022-07-22 11:49:54,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:49:54" (1/1) ... [2022-07-22 11:49:54,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:49:54" (1/1) ... [2022-07-22 11:49:54,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:49:54" (1/1) ... [2022-07-22 11:49:54,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:49:54" (1/1) ... [2022-07-22 11:49:54,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:49:54" (1/1) ... [2022-07-22 11:49:54,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:49:54" (1/1) ... [2022-07-22 11:49:54,683 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 11:49:54,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 11:49:54,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 11:49:54,688 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 11:49:54,689 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:49:54" (1/1) ... [2022-07-22 11:49:54,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 11:49:54,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 11:49:54,753 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 11:49:54,769 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 11:49:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 11:49:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 11:49:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 11:49:54,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 11:49:54,838 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-22 11:49:54,838 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-22 11:49:54,838 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-22 11:49:54,840 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-22 11:49:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-07-22 11:49:54,841 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-07-22 11:49:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 11:49:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 11:49:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 11:49:54,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 11:49:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 11:49:54,845 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 11:49:55,042 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 11:49:55,045 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 11:49:56,005 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 11:49:56,024 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 11:49:56,024 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-07-22 11:49:56,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:49:56 BoogieIcfgContainer [2022-07-22 11:49:56,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 11:49:56,030 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 11:49:56,030 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 11:49:56,035 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 11:49:56,036 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 11:49:56,036 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 11:49:54" (1/3) ... [2022-07-22 11:49:56,037 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b28cfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 11:49:56, skipping insertion in model container [2022-07-22 11:49:56,038 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 11:49:56,038 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:49:54" (2/3) ... [2022-07-22 11:49:56,038 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b28cfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 11:49:56, skipping insertion in model container [2022-07-22 11:49:56,038 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 11:49:56,039 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:49:56" (3/3) ... [2022-07-22 11:49:56,040 INFO L322 chiAutomizerObserver]: Analyzing ICFG chl-nzb-file-trans.wvr.c [2022-07-22 11:49:56,437 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-07-22 11:49:56,536 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 751 places, 835 transitions, 1694 flow [2022-07-22 11:49:57,279 INFO L129 PetriNetUnfolder]: 91/829 cut-off events. [2022-07-22 11:49:57,279 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-07-22 11:49:57,324 INFO L84 FinitePrefix]: Finished finitePrefix Result has 842 conditions, 829 events. 91/829 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3023 event pairs, 0 based on Foata normal form. 0/738 useless extension candidates. Maximal degree in co-relation 616. Up to 2 conditions per place. [2022-07-22 11:49:57,324 INFO L82 GeneralOperation]: Start removeDead. Operand has 751 places, 835 transitions, 1694 flow [2022-07-22 11:49:57,444 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 748 places, 829 transitions, 1676 flow [2022-07-22 11:49:57,465 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 11:49:57,465 INFO L301 stractBuchiCegarLoop]: Hoare is false [2022-07-22 11:49:57,465 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 11:49:57,465 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 11:49:57,466 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 11:49:57,466 INFO L305 stractBuchiCegarLoop]: Difference is false [2022-07-22 11:49:57,466 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 11:49:57,467 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 11:49:57,470 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states