/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/test-semi1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-21b0908 [2022-07-22 12:52:01,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 12:52:01,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 12:52:01,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 12:52:01,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 12:52:01,669 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 12:52:01,677 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 12:52:01,681 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 12:52:01,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 12:52:01,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 12:52:01,709 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 12:52:01,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 12:52:01,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 12:52:01,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 12:52:01,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 12:52:01,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 12:52:01,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 12:52:01,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 12:52:01,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 12:52:01,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 12:52:01,736 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 12:52:01,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 12:52:01,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 12:52:01,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 12:52:01,745 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 12:52:01,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-07-22 12:52:01,766 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 12:52:01,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 12:52:01,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 12:52:01,778 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-syntacticLbe.epf [2022-07-22 12:52:01,829 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 12:52:01,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 12:52:01,830 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 12:52:01,830 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 12:52:01,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 12:52:01,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 12:52:01,832 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 12:52:01,832 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 12:52:01,833 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 12:52:01,834 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 12:52:01,834 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 12:52:01,834 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 12:52:01,835 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 12:52:01,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 12:52:01,835 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 12:52:01,835 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 12:52:01,835 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 12:52:01,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 12:52:01,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 12:52:01,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 12:52:01,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 12:52:01,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 12:52:01,837 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 12:52:01,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 12:52:01,837 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 12:52:01,837 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 12:52:01,837 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 12:52:01,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 12:52:01,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 12:52:01,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 12:52:01,839 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 12:52:01,839 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-07-22 12:52:01,842 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 12:52:01,842 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-22 12:52:02,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 12:52:02,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 12:52:02,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 12:52:02,266 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 12:52:02,267 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 12:52:02,268 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-semi1.wvr.c [2022-07-22 12:52:02,348 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/718f63bb4/abe9f50849074d9f9624b4b6038068bc/FLAG43607d99f [2022-07-22 12:52:03,005 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 12:52:03,006 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-semi1.wvr.c [2022-07-22 12:52:03,019 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/718f63bb4/abe9f50849074d9f9624b4b6038068bc/FLAG43607d99f [2022-07-22 12:52:03,346 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/718f63bb4/abe9f50849074d9f9624b4b6038068bc [2022-07-22 12:52:03,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 12:52:03,357 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-22 12:52:03,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 12:52:03,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 12:52:03,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 12:52:03,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:52:03" (1/1) ... [2022-07-22 12:52:03,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53a751b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:52:03, skipping insertion in model container [2022-07-22 12:52:03,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:52:03" (1/1) ... [2022-07-22 12:52:03,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 12:52:03,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 12:52:03,665 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/test-semi1.wvr.c[1979,1992] [2022-07-22 12:52:03,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:52:03,677 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 12:52:03,716 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/test-semi1.wvr.c[1979,1992] [2022-07-22 12:52:03,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:52:03,748 INFO L208 MainTranslator]: Completed translation [2022-07-22 12:52:03,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:52:03 WrapperNode [2022-07-22 12:52:03,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 12:52:03,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 12:52:03,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 12:52:03,751 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 12:52:03,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:52:03" (1/1) ... [2022-07-22 12:52:03,770 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:52:03" (1/1) ... [2022-07-22 12:52:03,807 INFO L137 Inliner]: procedures = 21, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 69 [2022-07-22 12:52:03,807 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 12:52:03,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 12:52:03,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 12:52:03,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 12:52:03,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:52:03" (1/1) ... [2022-07-22 12:52:03,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:52:03" (1/1) ... [2022-07-22 12:52:03,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:52:03" (1/1) ... [2022-07-22 12:52:03,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:52:03" (1/1) ... [2022-07-22 12:52:03,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:52:03" (1/1) ... [2022-07-22 12:52:03,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:52:03" (1/1) ... [2022-07-22 12:52:03,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:52:03" (1/1) ... [2022-07-22 12:52:03,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 12:52:03,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 12:52:03,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 12:52:03,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 12:52:03,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:52:03" (1/1) ... [2022-07-22 12:52:03,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:52:03,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:52:03,922 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 12:52:03,941 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 12:52:03,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 12:52:03,998 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-22 12:52:03,998 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-22 12:52:03,998 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-22 12:52:03,999 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-22 12:52:03,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 12:52:03,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 12:52:03,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 12:52:03,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-22 12:52:03,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-22 12:52:04,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 12:52:04,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 12:52:04,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 12:52:04,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 12:52:04,002 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 12:52:04,098 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 12:52:04,100 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 12:52:04,318 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 12:52:04,439 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 12:52:04,440 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 12:52:04,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:52:04 BoogieIcfgContainer [2022-07-22 12:52:04,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 12:52:04,451 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 12:52:04,451 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 12:52:04,455 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 12:52:04,456 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:52:04,456 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 12:52:03" (1/3) ... [2022-07-22 12:52:04,458 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4bc70902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 12:52:04, skipping insertion in model container [2022-07-22 12:52:04,458 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:52:04,458 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:52:03" (2/3) ... [2022-07-22 12:52:04,459 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4bc70902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 12:52:04, skipping insertion in model container [2022-07-22 12:52:04,459 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:52:04,459 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:52:04" (3/3) ... [2022-07-22 12:52:04,461 INFO L322 chiAutomizerObserver]: Analyzing ICFG test-semi1.wvr.c [2022-07-22 12:52:04,596 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-22 12:52:04,652 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 81 transitions, 178 flow [2022-07-22 12:52:04,693 INFO L129 PetriNetUnfolder]: 3/77 cut-off events. [2022-07-22 12:52:04,693 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-22 12:52:04,696 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 77 events. 3/77 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 17 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2022-07-22 12:52:04,697 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 81 transitions, 178 flow [2022-07-22 12:52:04,704 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 77 transitions, 166 flow [2022-07-22 12:52:04,709 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-07-22 12:52:04,720 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 77 transitions, 166 flow [2022-07-22 12:52:04,724 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 77 transitions, 166 flow [2022-07-22 12:52:04,725 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 77 transitions, 166 flow [2022-07-22 12:52:04,750 INFO L129 PetriNetUnfolder]: 3/77 cut-off events. [2022-07-22 12:52:04,750 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-22 12:52:04,751 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 77 events. 3/77 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 18 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2022-07-22 12:52:04,753 INFO L116 LiptonReduction]: Number of co-enabled transitions 108 [2022-07-22 12:52:07,489 INFO L131 LiptonReduction]: Checked pairs total: 204 [2022-07-22 12:52:07,489 INFO L133 LiptonReduction]: Total number of compositions: 83 [2022-07-22 12:52:07,512 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 12:52:07,512 INFO L301 stractBuchiCegarLoop]: Hoare is false [2022-07-22 12:52:07,512 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 12:52:07,513 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 12:52:07,513 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 12:52:07,513 INFO L305 stractBuchiCegarLoop]: Difference is false [2022-07-22 12:52:07,513 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 12:52:07,513 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 12:52:07,515 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-07-22 12:52:07,545 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 12:52:07,546 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-22 12:52:07,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 12:52:07 BoogieIcfgContainer [2022-07-22 12:52:07,552 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 12:52:07,554 INFO L158 Benchmark]: Toolchain (without parser) took 4201.23ms. Allocated memory is still 151.0MB. Free memory was 125.0MB in the beginning and 73.7MB in the end (delta: 51.3MB). Peak memory consumption was 52.5MB. Max. memory is 8.0GB. [2022-07-22 12:52:07,555 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 151.0MB. Free memory is still 121.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-07-22 12:52:07,556 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.15ms. Allocated memory is still 151.0MB. Free memory was 124.8MB in the beginning and 114.7MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-07-22 12:52:07,557 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.09ms. Allocated memory is still 151.0MB. Free memory was 114.5MB in the beginning and 113.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-07-22 12:52:07,558 INFO L158 Benchmark]: Boogie Preprocessor took 58.34ms. Allocated memory is still 151.0MB. Free memory was 112.9MB in the beginning and 111.8MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-07-22 12:52:07,559 INFO L158 Benchmark]: RCFGBuilder took 580.45ms. Allocated memory is still 151.0MB. Free memory was 111.8MB in the beginning and 133.1MB in the end (delta: -21.3MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-07-22 12:52:07,560 INFO L158 Benchmark]: BuchiAutomizer took 3101.83ms. Allocated memory is still 151.0MB. Free memory was 133.0MB in the beginning and 73.7MB in the end (delta: 59.3MB). Peak memory consumption was 59.8MB. Max. memory is 8.0GB. [2022-07-22 12:52:07,567 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 151.0MB. Free memory is still 121.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 388.15ms. Allocated memory is still 151.0MB. Free memory was 124.8MB in the beginning and 114.7MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 57.09ms. Allocated memory is still 151.0MB. Free memory was 114.5MB in the beginning and 113.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 58.34ms. Allocated memory is still 151.0MB. Free memory was 112.9MB in the beginning and 111.8MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 580.45ms. Allocated memory is still 151.0MB. Free memory was 111.8MB in the beginning and 133.1MB in the end (delta: -21.3MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * BuchiAutomizer took 3101.83ms. Allocated memory is still 151.0MB. Free memory was 133.0MB in the beginning and 73.7MB in the end (delta: 59.3MB). Peak memory consumption was 59.8MB. 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 2.9s 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: 2.8s - 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: 2.8s, 81 PlacesBefore, 18 PlacesAfterwards, 77 TransitionsBefore, 11 TransitionsAfterwards, 108 CoEnabledTransitionPairs, 7 FixpointIterations, 59 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 10 TrivialYvCompositions, 0 ConcurrentYvCompositions, 3 ChoiceCompositions, 83 TotalNumberOfCompositions, 204 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 163, positive: 148, positive conditional: 0, positive unconditional: 148, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 65, positive: 62, positive conditional: 0, positive unconditional: 62, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 163, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 65, unknown conditional: 0, unknown unconditional: 65] , Statistics on independence cache: Total cache size (in pairs): 7, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1 RESULT: Ultimate proved your program to be correct! [2022-07-22 12:52:07,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...