/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-semanticLbe.epf -i ../../../trunk/examples/svcomp/weaver/test-easy7.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-21b0908 [2022-07-22 12:26:08,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 12:26:08,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 12:26:08,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-07-22 12:26:08,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 12:26:08,749 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 12:26:08,750 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 12:26:08,751 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 12:26:08,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 12:26:08,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 12:26:08,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 12:26:08,758 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 12:26:08,759 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 12:26:08,767 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 12:26:08,768 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 12:26:08,769 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 12:26:08,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 12:26:08,779 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-07-22 12:26:08,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 12:26:08,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 12:26:08,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 12:26:08,801 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-semanticLbe.epf [2022-07-22 12:26:08,854 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 12:26:08,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 12:26:08,856 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 12:26:08,856 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 12:26:08,858 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 12:26:08,858 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 12:26:08,858 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 12:26:08,858 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 12:26:08,859 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 12:26:08,860 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 12:26:08,860 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 12:26:08,860 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 12:26:08,860 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 12:26:08,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 12:26:08,861 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 12:26:08,861 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 12:26:08,861 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 12:26:08,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 12:26:08,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 12:26:08,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 12:26:08,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 12:26:08,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 12:26:08,863 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 12:26:08,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 12:26:08,863 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 12:26:08,863 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 12:26:08,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 12:26:08,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 12:26:08,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 12:26:08,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 12:26:08,865 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 12:26:08,868 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 12:26:08,868 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-22 12:26:09,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 12:26:09,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 12:26:09,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 12:26:09,340 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 12:26:09,341 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 12:26:09,343 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-easy7.wvr.c [2022-07-22 12:26:09,415 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac2551846/6ec878ca25c94b3fa8ab2896e79192b4/FLAG0d4b17d35 [2022-07-22 12:26:10,027 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 12:26:10,029 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy7.wvr.c [2022-07-22 12:26:10,039 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac2551846/6ec878ca25c94b3fa8ab2896e79192b4/FLAG0d4b17d35 [2022-07-22 12:26:10,338 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac2551846/6ec878ca25c94b3fa8ab2896e79192b4 [2022-07-22 12:26:10,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 12:26:10,348 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-22 12:26:10,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 12:26:10,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 12:26:10,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 12:26:10,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:26:10" (1/1) ... [2022-07-22 12:26:10,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6980126a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:26:10, skipping insertion in model container [2022-07-22 12:26:10,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:26:10" (1/1) ... [2022-07-22 12:26:10,366 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 12:26:10,384 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 12:26:10,595 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-easy7.wvr.c[1872,1885] [2022-07-22 12:26:10,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:26:10,611 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 12:26:10,653 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-easy7.wvr.c[1872,1885] [2022-07-22 12:26:10,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:26:10,690 INFO L208 MainTranslator]: Completed translation [2022-07-22 12:26:10,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:26:10 WrapperNode [2022-07-22 12:26:10,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 12:26:10,692 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 12:26:10,693 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 12:26:10,693 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 12:26:10,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:26:10" (1/1) ... [2022-07-22 12:26:10,727 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:26:10" (1/1) ... [2022-07-22 12:26:10,767 INFO L137 Inliner]: procedures = 21, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2022-07-22 12:26:10,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 12:26:10,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 12:26:10,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 12:26:10,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 12:26:10,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:26:10" (1/1) ... [2022-07-22 12:26:10,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:26:10" (1/1) ... [2022-07-22 12:26:10,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:26:10" (1/1) ... [2022-07-22 12:26:10,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:26:10" (1/1) ... [2022-07-22 12:26:10,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:26:10" (1/1) ... [2022-07-22 12:26:10,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:26:10" (1/1) ... [2022-07-22 12:26:10,826 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:26:10" (1/1) ... [2022-07-22 12:26:10,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 12:26:10,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 12:26:10,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 12:26:10,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 12:26:10,836 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:26:10" (1/1) ... [2022-07-22 12:26:10,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:26:10,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:26:10,884 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 12:26:10,905 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 12:26:10,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 12:26:10,960 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-22 12:26:10,960 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-22 12:26:10,961 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-22 12:26:10,961 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-22 12:26:10,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 12:26:10,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 12:26:10,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 12:26:10,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 12:26:10,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 12:26:10,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 12:26:10,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 12:26:10,964 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 12:26:11,103 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 12:26:11,106 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 12:26:11,378 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 12:26:11,389 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 12:26:11,389 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 12:26:11,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:26:11 BoogieIcfgContainer [2022-07-22 12:26:11,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 12:26:11,393 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 12:26:11,393 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 12:26:11,398 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 12:26:11,399 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:26:11,400 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 12:26:10" (1/3) ... [2022-07-22 12:26:11,402 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ce0dad9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 12:26:11, skipping insertion in model container [2022-07-22 12:26:11,402 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:26:11,402 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:26:10" (2/3) ... [2022-07-22 12:26:11,403 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ce0dad9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 12:26:11, skipping insertion in model container [2022-07-22 12:26:11,403 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:26:11,403 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:26:11" (3/3) ... [2022-07-22 12:26:11,405 INFO L322 chiAutomizerObserver]: Analyzing ICFG test-easy7.wvr.c [2022-07-22 12:26:11,538 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-22 12:26:11,652 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 95 transitions, 206 flow [2022-07-22 12:26:11,774 INFO L129 PetriNetUnfolder]: 2/91 cut-off events. [2022-07-22 12:26:11,775 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-22 12:26:11,781 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 91 events. 2/91 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2022-07-22 12:26:11,781 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 95 transitions, 206 flow [2022-07-22 12:26:11,796 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 91 transitions, 194 flow [2022-07-22 12:26:11,801 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-22 12:26:11,817 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 91 transitions, 194 flow [2022-07-22 12:26:11,820 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 91 transitions, 194 flow [2022-07-22 12:26:11,821 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 91 transitions, 194 flow [2022-07-22 12:26:11,844 INFO L129 PetriNetUnfolder]: 2/91 cut-off events. [2022-07-22 12:26:11,845 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-22 12:26:11,845 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 91 events. 2/91 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2022-07-22 12:26:11,847 INFO L116 LiptonReduction]: Number of co-enabled transitions 812 [2022-07-22 12:26:14,635 INFO L131 LiptonReduction]: Checked pairs total: 669 [2022-07-22 12:26:14,635 INFO L133 LiptonReduction]: Total number of compositions: 86 [2022-07-22 12:26:14,662 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 12:26:14,663 INFO L301 stractBuchiCegarLoop]: Hoare is false [2022-07-22 12:26:14,663 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 12:26:14,663 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 12:26:14,663 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 12:26:14,663 INFO L305 stractBuchiCegarLoop]: Difference is false [2022-07-22 12:26:14,664 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 12:26:14,664 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 12:26:14,667 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-07-22 12:26:14,699 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 12:26:14,699 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-22 12:26:14,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 12:26:14 BoogieIcfgContainer [2022-07-22 12:26:14,706 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 12:26:14,708 INFO L158 Benchmark]: Toolchain (without parser) took 4363.92ms. Allocated memory was 160.4MB in the beginning and 211.8MB in the end (delta: 51.4MB). Free memory was 136.3MB in the beginning and 154.6MB in the end (delta: -18.2MB). Peak memory consumption was 34.3MB. Max. memory is 8.0GB. [2022-07-22 12:26:14,709 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 160.4MB. Free memory is still 130.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-07-22 12:26:14,710 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.42ms. Allocated memory is still 160.4MB. Free memory was 136.1MB in the beginning and 126.0MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-07-22 12:26:14,711 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.25ms. Allocated memory is still 160.4MB. Free memory was 125.8MB in the beginning and 124.4MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-07-22 12:26:14,712 INFO L158 Benchmark]: Boogie Preprocessor took 62.95ms. Allocated memory is still 160.4MB. Free memory was 124.4MB in the beginning and 123.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-07-22 12:26:14,712 INFO L158 Benchmark]: RCFGBuilder took 559.61ms. Allocated memory is still 160.4MB. Free memory was 123.1MB in the beginning and 111.4MB in the end (delta: 11.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-07-22 12:26:14,714 INFO L158 Benchmark]: BuchiAutomizer took 3312.70ms. Allocated memory was 160.4MB in the beginning and 211.8MB in the end (delta: 51.4MB). Free memory was 111.2MB in the beginning and 154.6MB in the end (delta: -43.4MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. [2022-07-22 12:26:14,718 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 160.4MB. Free memory is still 130.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 341.42ms. Allocated memory is still 160.4MB. Free memory was 136.1MB in the beginning and 126.0MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 75.25ms. Allocated memory is still 160.4MB. Free memory was 125.8MB in the beginning and 124.4MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 62.95ms. Allocated memory is still 160.4MB. Free memory was 124.4MB in the beginning and 123.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 559.61ms. Allocated memory is still 160.4MB. Free memory was 123.1MB in the beginning and 111.4MB in the end (delta: 11.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 3312.70ms. Allocated memory was 160.4MB in the beginning and 211.8MB in the end (delta: 51.4MB). Free memory was 111.2MB in the beginning and 154.6MB in the end (delta: -43.4MB). Peak memory consumption was 9.1MB. 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 3.1s 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: 3.0s - 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, 96 PlacesBefore, 18 PlacesAfterwards, 91 TransitionsBefore, 11 TransitionsAfterwards, 812 CoEnabledTransitionPairs, 6 FixpointIterations, 47 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 86 TotalNumberOfCompositions, 669 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 669, positive: 669, positive conditional: 0, positive unconditional: 669, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 571, positive: 571, positive conditional: 0, positive unconditional: 571, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 571, positive: 571, positive conditional: 0, positive unconditional: 571, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 669, positive: 98, positive conditional: 0, positive unconditional: 98, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 571, unknown conditional: 0, unknown unconditional: 571] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 12, Positive conditional cache size: 0, Positive unconditional cache size: 12, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 RESULT: Ultimate proved your program to be correct! [2022-07-22 12:26:14,764 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...