/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-bakery-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-0d686a6 [2022-07-26 14:12:45,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-26 14:12:45,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-26 14:12:46,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-26 14:12:46,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-26 14:12:46,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-26 14:12:46,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-26 14:12:46,020 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-26 14:12:46,021 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-26 14:12:46,025 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-26 14:12:46,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-26 14:12:46,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-26 14:12:46,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-26 14:12:46,028 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-26 14:12:46,029 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-26 14:12:46,035 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-26 14:12:46,036 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-26 14:12:46,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-26 14:12:46,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-26 14:12:46,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-26 14:12:46,039 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-26 14:12:46,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-26 14:12:46,040 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-26 14:12:46,041 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-26 14:12:46,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-26 14:12:46,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-07-26 14:12:46,047 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-26 14:12:46,047 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-26 14:12:46,052 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-26 14:12:46,052 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 14:12:46,076 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-26 14:12:46,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-26 14:12:46,077 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-26 14:12:46,077 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-26 14:12:46,077 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-26 14:12:46,077 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-26 14:12:46,078 INFO L138 SettingsManager]: * Use SBE=true [2022-07-26 14:12:46,078 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-26 14:12:46,078 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-26 14:12:46,078 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-26 14:12:46,078 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-26 14:12:46,079 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-26 14:12:46,079 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-26 14:12:46,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-26 14:12:46,080 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-26 14:12:46,080 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-26 14:12:46,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-26 14:12:46,080 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-26 14:12:46,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-26 14:12:46,080 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-26 14:12:46,080 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-26 14:12:46,080 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-26 14:12:46,080 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-26 14:12:46,080 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-26 14:12:46,080 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-26 14:12:46,081 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-26 14:12:46,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-26 14:12:46,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-26 14:12:46,081 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-26 14:12:46,081 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-26 14:12:46,081 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-26 14:12:46,081 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-07-26 14:12:46,082 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-26 14:12:46,082 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-26 14:12:46,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-26 14:12:46,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-26 14:12:46,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-26 14:12:46,285 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-26 14:12:46,286 INFO L275 PluginConnector]: CDTParser initialized [2022-07-26 14:12:46,287 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-bakery-2.wvr.c [2022-07-26 14:12:46,333 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66220daff/539d7921459b465c9b5ac5c082e3648e/FLAGc6bd04ec9 [2022-07-26 14:12:46,629 INFO L306 CDTParser]: Found 1 translation units. [2022-07-26 14:12:46,630 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-2.wvr.c [2022-07-26 14:12:46,636 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66220daff/539d7921459b465c9b5ac5c082e3648e/FLAGc6bd04ec9 [2022-07-26 14:12:47,054 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66220daff/539d7921459b465c9b5ac5c082e3648e [2022-07-26 14:12:47,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-26 14:12:47,056 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-26 14:12:47,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-26 14:12:47,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-26 14:12:47,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-26 14:12:47,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.07 02:12:47" (1/1) ... [2022-07-26 14:12:47,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ed7f912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:12:47, skipping insertion in model container [2022-07-26 14:12:47,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.07 02:12:47" (1/1) ... [2022-07-26 14:12:47,065 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-26 14:12:47,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-26 14:12:47,192 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-bakery-2.wvr.c[3512,3525] [2022-07-26 14:12:47,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-26 14:12:47,206 INFO L203 MainTranslator]: Completed pre-run [2022-07-26 14:12:47,255 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-bakery-2.wvr.c[3512,3525] [2022-07-26 14:12:47,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-26 14:12:47,264 INFO L208 MainTranslator]: Completed translation [2022-07-26 14:12:47,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:12:47 WrapperNode [2022-07-26 14:12:47,265 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-26 14:12:47,265 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-26 14:12:47,265 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-26 14:12:47,265 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-26 14:12:47,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:12:47" (1/1) ... [2022-07-26 14:12:47,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:12:47" (1/1) ... [2022-07-26 14:12:47,290 INFO L137 Inliner]: procedures = 21, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 151 [2022-07-26 14:12:47,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-26 14:12:47,291 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-26 14:12:47,291 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-26 14:12:47,291 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-26 14:12:47,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:12:47" (1/1) ... [2022-07-26 14:12:47,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:12:47" (1/1) ... [2022-07-26 14:12:47,303 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:12:47" (1/1) ... [2022-07-26 14:12:47,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:12:47" (1/1) ... [2022-07-26 14:12:47,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:12:47" (1/1) ... [2022-07-26 14:12:47,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:12:47" (1/1) ... [2022-07-26 14:12:47,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:12:47" (1/1) ... [2022-07-26 14:12:47,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-26 14:12:47,313 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-26 14:12:47,313 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-26 14:12:47,313 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-26 14:12:47,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:12:47" (1/1) ... [2022-07-26 14:12:47,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 14:12:47,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 14:12:47,344 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 14:12:47,352 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 14:12:47,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-26 14:12:47,370 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-26 14:12:47,370 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-26 14:12:47,371 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-26 14:12:47,371 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-26 14:12:47,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-26 14:12:47,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-26 14:12:47,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-26 14:12:47,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-26 14:12:47,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-26 14:12:47,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-26 14:12:47,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-26 14:12:47,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-26 14:12:47,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-26 14:12:47,372 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 14:12:47,438 INFO L234 CfgBuilder]: Building ICFG [2022-07-26 14:12:47,439 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-26 14:12:47,637 INFO L275 CfgBuilder]: Performing block encoding [2022-07-26 14:12:47,679 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-26 14:12:47,679 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-26 14:12:47,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.07 02:12:47 BoogieIcfgContainer [2022-07-26 14:12:47,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-26 14:12:47,681 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-26 14:12:47,682 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-26 14:12:47,684 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-26 14:12:47,685 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 14:12:47,685 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.07 02:12:47" (1/3) ... [2022-07-26 14:12:47,686 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32b37594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.07 02:12:47, skipping insertion in model container [2022-07-26 14:12:47,686 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 14:12:47,686 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:12:47" (2/3) ... [2022-07-26 14:12:47,686 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32b37594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.07 02:12:47, skipping insertion in model container [2022-07-26 14:12:47,686 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 14:12:47,686 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.07 02:12:47" (3/3) ... [2022-07-26 14:12:47,687 INFO L322 chiAutomizerObserver]: Analyzing ICFG parallel-bakery-2.wvr.c [2022-07-26 14:12:47,747 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-26 14:12:47,785 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 107 places, 104 transitions, 224 flow [2022-07-26 14:12:47,814 INFO L129 PetriNetUnfolder]: 2/100 cut-off events. [2022-07-26 14:12:47,814 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-26 14:12:47,816 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 100 events. 2/100 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2022-07-26 14:12:47,816 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 104 transitions, 224 flow [2022-07-26 14:12:47,820 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 100 transitions, 212 flow [2022-07-26 14:12:47,822 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-07-26 14:12:47,828 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 100 transitions, 212 flow [2022-07-26 14:12:47,830 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 100 transitions, 212 flow [2022-07-26 14:12:47,830 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 105 places, 100 transitions, 212 flow [2022-07-26 14:12:47,843 INFO L129 PetriNetUnfolder]: 2/100 cut-off events. [2022-07-26 14:12:47,843 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-26 14:12:47,843 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 100 events. 2/100 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2022-07-26 14:12:47,844 INFO L116 LiptonReduction]: Number of co-enabled transitions 572 [2022-07-26 14:12:49,679 INFO L131 LiptonReduction]: Checked pairs total: 4057 [2022-07-26 14:12:49,680 INFO L133 LiptonReduction]: Total number of compositions: 79 [2022-07-26 14:12:49,691 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2022-07-26 14:12:49,691 INFO L302 stractBuchiCegarLoop]: Hoare is false [2022-07-26 14:12:49,691 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-26 14:12:49,691 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-26 14:12:49,692 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-26 14:12:49,692 INFO L306 stractBuchiCegarLoop]: Difference is false [2022-07-26 14:12:49,692 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-26 14:12:49,692 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-26 14:12:49,693 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-07-26 14:12:49,749 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-26 14:12:49,750 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-26 14:12:49,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.07 02:12:49 BoogieIcfgContainer [2022-07-26 14:12:49,753 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-26 14:12:49,754 INFO L158 Benchmark]: Toolchain (without parser) took 2697.23ms. Allocated memory was 187.7MB in the beginning and 238.0MB in the end (delta: 50.3MB). Free memory was 130.5MB in the beginning and 178.0MB in the end (delta: -47.5MB). Peak memory consumption was 3.7MB. Max. memory is 8.0GB. [2022-07-26 14:12:49,754 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 187.7MB. Free memory is still 146.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-07-26 14:12:49,755 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.60ms. Allocated memory was 187.7MB in the beginning and 238.0MB in the end (delta: 50.3MB). Free memory was 130.2MB in the beginning and 211.3MB in the end (delta: -81.1MB). Peak memory consumption was 16.2MB. Max. memory is 8.0GB. [2022-07-26 14:12:49,755 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.40ms. Allocated memory is still 238.0MB. Free memory was 211.3MB in the beginning and 209.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-07-26 14:12:49,755 INFO L158 Benchmark]: Boogie Preprocessor took 21.27ms. Allocated memory is still 238.0MB. Free memory was 209.2MB in the beginning and 208.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-07-26 14:12:49,756 INFO L158 Benchmark]: RCFGBuilder took 367.78ms. Allocated memory is still 238.0MB. Free memory was 208.2MB in the beginning and 189.8MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-07-26 14:12:49,756 INFO L158 Benchmark]: BuchiAutomizer took 2071.51ms. Allocated memory is still 238.0MB. Free memory was 189.8MB in the beginning and 178.0MB in the end (delta: 11.8MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. [2022-07-26 14:12:49,758 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 187.7MB. Free memory is still 146.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 207.60ms. Allocated memory was 187.7MB in the beginning and 238.0MB in the end (delta: 50.3MB). Free memory was 130.2MB in the beginning and 211.3MB in the end (delta: -81.1MB). Peak memory consumption was 16.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.40ms. Allocated memory is still 238.0MB. Free memory was 211.3MB in the beginning and 209.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.27ms. Allocated memory is still 238.0MB. Free memory was 209.2MB in the beginning and 208.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 367.78ms. Allocated memory is still 238.0MB. Free memory was 208.2MB in the beginning and 189.8MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * BuchiAutomizer took 2071.51ms. Allocated memory is still 238.0MB. Free memory was 189.8MB in the beginning and 178.0MB in the end (delta: 11.8MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition. There is no loop in your program. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 0 iterations. TraceHistogramMax:0. Analysis of lassos took 0.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 1.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 105 PlacesBefore, 34 PlacesAfterwards, 100 TransitionsBefore, 27 TransitionsAfterwards, 572 CoEnabledTransitionPairs, 7 FixpointIterations, 62 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 79 TotalNumberOfCompositions, 4057 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1603, positive: 1334, positive conditional: 0, positive unconditional: 1334, negative: 269, negative conditional: 0, negative unconditional: 269, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 263, positive: 246, positive conditional: 0, positive unconditional: 246, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1603, positive: 1088, positive conditional: 0, positive unconditional: 1088, negative: 252, negative conditional: 0, negative unconditional: 252, unknown: 263, unknown conditional: 0, unknown unconditional: 263] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 89, Positive conditional cache size: 0, Positive unconditional cache size: 89, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 RESULT: Ultimate proved your program to be correct! [2022-07-26 14:12:49,785 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...