/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/chl-exp-term-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-21b0908 [2022-07-22 12:42:25,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 12:42:25,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 12:42:25,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 12:42:25,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 12:42:25,876 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 12:42:25,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 12:42:25,880 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 12:42:25,895 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 12:42:25,897 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 12:42:25,898 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 12:42:25,900 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 12:42:25,900 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 12:42:25,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 12:42:25,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 12:42:25,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 12:42:25,913 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 12:42:25,918 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 12:42:25,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 12:42:25,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 12:42:25,934 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 12:42:25,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 12:42:25,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 12:42:25,938 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 12:42:25,940 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 12:42:25,949 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 12:42:25,955 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 12:42:25,955 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 12:42:25,957 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 12:42:25,957 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 12:42:25,958 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 12:42:25,962 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 12:42:25,963 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 12:42:25,964 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 12:42:25,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 12:42:25,969 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 12:42:25,969 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 12:42:25,970 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 12:42:25,970 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 12:42:25,971 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 12:42:25,973 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 12:42:25,976 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 12:42:25,979 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 12:42:26,040 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 12:42:26,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 12:42:26,042 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 12:42:26,042 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 12:42:26,045 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 12:42:26,046 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 12:42:26,046 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 12:42:26,046 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 12:42:26,046 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 12:42:26,048 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 12:42:26,048 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 12:42:26,048 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 12:42:26,049 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 12:42:26,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 12:42:26,049 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 12:42:26,049 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 12:42:26,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 12:42:26,050 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 12:42:26,050 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 12:42:26,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 12:42:26,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 12:42:26,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 12:42:26,051 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 12:42:26,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 12:42:26,051 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 12:42:26,051 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 12:42:26,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 12:42:26,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 12:42:26,052 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 12:42:26,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 12:42:26,053 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 12:42:26,053 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-07-22 12:42:26,055 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 12:42:26,055 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-22 12:42:26,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 12:42:26,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 12:42:26,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 12:42:26,481 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 12:42:26,483 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 12:42:26,484 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2022-07-22 12:42:26,566 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a19a31399/25cf716d39f549f7b14dd39930ac529e/FLAGdd8570e1d [2022-07-22 12:42:27,210 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 12:42:27,211 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2022-07-22 12:42:27,221 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a19a31399/25cf716d39f549f7b14dd39930ac529e/FLAGdd8570e1d [2022-07-22 12:42:27,529 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a19a31399/25cf716d39f549f7b14dd39930ac529e [2022-07-22 12:42:27,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 12:42:27,545 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-22 12:42:27,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 12:42:27,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 12:42:27,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 12:42:27,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:42:27" (1/1) ... [2022-07-22 12:42:27,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20b5f3d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:27, skipping insertion in model container [2022-07-22 12:42:27,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:42:27" (1/1) ... [2022-07-22 12:42:27,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 12:42:27,598 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 12:42:27,815 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c[2628,2641] [2022-07-22 12:42:27,819 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:42:27,832 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 12:42:27,858 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c[2628,2641] [2022-07-22 12:42:27,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:42:27,878 INFO L208 MainTranslator]: Completed translation [2022-07-22 12:42:27,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:27 WrapperNode [2022-07-22 12:42:27,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 12:42:27,881 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 12:42:27,881 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 12:42:27,881 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 12:42:27,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:27" (1/1) ... [2022-07-22 12:42:27,900 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:27" (1/1) ... [2022-07-22 12:42:27,932 INFO L137 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 124 [2022-07-22 12:42:27,932 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 12:42:27,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 12:42:27,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 12:42:27,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 12:42:27,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:27" (1/1) ... [2022-07-22 12:42:27,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:27" (1/1) ... [2022-07-22 12:42:27,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:27" (1/1) ... [2022-07-22 12:42:27,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:27" (1/1) ... [2022-07-22 12:42:27,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:27" (1/1) ... [2022-07-22 12:42:27,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:27" (1/1) ... [2022-07-22 12:42:27,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:27" (1/1) ... [2022-07-22 12:42:27,964 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 12:42:27,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 12:42:27,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 12:42:27,966 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 12:42:27,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:27" (1/1) ... [2022-07-22 12:42:27,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:42:27,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:42:28,009 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 12:42:28,027 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 12:42:28,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 12:42:28,092 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-22 12:42:28,093 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-22 12:42:28,093 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-22 12:42:28,093 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-22 12:42:28,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 12:42:28,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 12:42:28,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 12:42:28,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 12:42:28,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 12:42:28,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 12:42:28,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 12:42:28,098 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 12:42:28,228 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 12:42:28,230 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 12:42:28,613 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 12:42:28,635 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 12:42:28,637 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 12:42:28,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:42:28 BoogieIcfgContainer [2022-07-22 12:42:28,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 12:42:28,641 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 12:42:28,641 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 12:42:28,646 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 12:42:28,646 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:42:28,647 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 12:42:27" (1/3) ... [2022-07-22 12:42:28,648 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@729ab2b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 12:42:28, skipping insertion in model container [2022-07-22 12:42:28,648 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:42:28,648 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:42:27" (2/3) ... [2022-07-22 12:42:28,649 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@729ab2b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 12:42:28, skipping insertion in model container [2022-07-22 12:42:28,649 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:42:28,649 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:42:28" (3/3) ... [2022-07-22 12:42:28,651 INFO L322 chiAutomizerObserver]: Analyzing ICFG chl-exp-term-symm.wvr.c [2022-07-22 12:42:28,784 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-22 12:42:28,822 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 163 places, 171 transitions, 358 flow [2022-07-22 12:42:28,892 INFO L129 PetriNetUnfolder]: 13/167 cut-off events. [2022-07-22 12:42:28,892 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-22 12:42:28,900 INFO L84 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 167 events. 13/167 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 280 event pairs, 0 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-07-22 12:42:28,900 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 171 transitions, 358 flow [2022-07-22 12:42:28,913 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 161 places, 167 transitions, 346 flow [2022-07-22 12:42:28,917 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-07-22 12:42:28,929 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 161 places, 167 transitions, 346 flow [2022-07-22 12:42:28,932 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 161 places, 167 transitions, 346 flow [2022-07-22 12:42:28,933 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 161 places, 167 transitions, 346 flow [2022-07-22 12:42:28,973 INFO L129 PetriNetUnfolder]: 13/167 cut-off events. [2022-07-22 12:42:28,973 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-22 12:42:28,975 INFO L84 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 167 events. 13/167 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 282 event pairs, 0 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-07-22 12:42:28,981 INFO L116 LiptonReduction]: Number of co-enabled transitions 5192 [2022-07-22 12:42:34,320 INFO L131 LiptonReduction]: Checked pairs total: 4980 [2022-07-22 12:42:34,321 INFO L133 LiptonReduction]: Total number of compositions: 214 [2022-07-22 12:42:34,343 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 12:42:34,343 INFO L301 stractBuchiCegarLoop]: Hoare is false [2022-07-22 12:42:34,343 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 12:42:34,344 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 12:42:34,344 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 12:42:34,344 INFO L305 stractBuchiCegarLoop]: Difference is false [2022-07-22 12:42:34,344 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 12:42:34,344 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 12:42:34,346 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-07-22 12:42:34,376 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 12:42:34,377 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-22 12:42:34,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 12:42:34 BoogieIcfgContainer [2022-07-22 12:42:34,383 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 12:42:34,385 INFO L158 Benchmark]: Toolchain (without parser) took 6844.04ms. Allocated memory was 152.0MB in the beginning and 182.5MB in the end (delta: 30.4MB). Free memory was 126.7MB in the beginning and 134.7MB in the end (delta: -8.1MB). Peak memory consumption was 24.2MB. Max. memory is 8.0GB. [2022-07-22 12:42:34,385 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 152.0MB. Free memory is still 122.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-07-22 12:42:34,386 INFO L158 Benchmark]: CACSL2BoogieTranslator took 332.33ms. Allocated memory is still 152.0MB. Free memory was 126.5MB in the beginning and 115.4MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-07-22 12:42:34,387 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.80ms. Allocated memory is still 152.0MB. Free memory was 115.2MB in the beginning and 113.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-07-22 12:42:34,388 INFO L158 Benchmark]: Boogie Preprocessor took 31.55ms. Allocated memory is still 152.0MB. Free memory was 113.4MB in the beginning and 112.0MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-07-22 12:42:34,389 INFO L158 Benchmark]: RCFGBuilder took 674.87ms. Allocated memory is still 152.0MB. Free memory was 112.0MB in the beginning and 132.4MB in the end (delta: -20.4MB). Peak memory consumption was 16.0MB. Max. memory is 8.0GB. [2022-07-22 12:42:34,390 INFO L158 Benchmark]: BuchiAutomizer took 5741.57ms. Allocated memory was 152.0MB in the beginning and 182.5MB in the end (delta: 30.4MB). Free memory was 131.8MB in the beginning and 134.7MB in the end (delta: -2.9MB). Peak memory consumption was 29.1MB. Max. memory is 8.0GB. [2022-07-22 12:42:34,395 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 152.0MB. Free memory is still 122.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 332.33ms. Allocated memory is still 152.0MB. Free memory was 126.5MB in the beginning and 115.4MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 51.80ms. Allocated memory is still 152.0MB. Free memory was 115.2MB in the beginning and 113.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.55ms. Allocated memory is still 152.0MB. Free memory was 113.4MB in the beginning and 112.0MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 674.87ms. Allocated memory is still 152.0MB. Free memory was 112.0MB in the beginning and 132.4MB in the end (delta: -20.4MB). Peak memory consumption was 16.0MB. Max. memory is 8.0GB. * BuchiAutomizer took 5741.57ms. Allocated memory was 152.0MB in the beginning and 182.5MB in the end (delta: 30.4MB). Free memory was 131.8MB in the beginning and 134.7MB in the end (delta: -2.9MB). Peak memory consumption was 29.1MB. 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 5.5s 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: 5.5s - 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: 5.4s, 161 PlacesBefore, 18 PlacesAfterwards, 167 TransitionsBefore, 11 TransitionsAfterwards, 5192 CoEnabledTransitionPairs, 8 FixpointIterations, 63 TrivialSequentialCompositions, 91 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 35 ConcurrentYvCompositions, 13 ChoiceCompositions, 214 TotalNumberOfCompositions, 4980 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4980, positive: 4980, positive conditional: 0, positive unconditional: 4980, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3270, positive: 3270, positive conditional: 0, positive unconditional: 3270, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4980, positive: 1710, positive conditional: 0, positive unconditional: 1710, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3270, unknown conditional: 0, unknown unconditional: 3270] , Statistics on independence cache: Total cache size (in pairs): 7, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, 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 12:42:34,461 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...