/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-match-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-0d686a6 [2022-07-26 14:11:33,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-26 14:11:33,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-26 14:11:33,055 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-26 14:11:33,056 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-26 14:11:33,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-26 14:11:33,057 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-26 14:11:33,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-26 14:11:33,060 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-26 14:11:33,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-26 14:11:33,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-26 14:11:33,061 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-26 14:11:33,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-26 14:11:33,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-26 14:11:33,063 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-26 14:11:33,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-26 14:11:33,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-26 14:11:33,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-26 14:11:33,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-26 14:11:33,067 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-26 14:11:33,068 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-26 14:11:33,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-26 14:11:33,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-26 14:11:33,070 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-26 14:11:33,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-26 14:11:33,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-07-26 14:11:33,078 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-26 14:11:33,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-26 14:11:33,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-26 14:11:33,080 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-syntacticLbe.epf [2022-07-26 14:11:33,094 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-26 14:11:33,094 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-26 14:11:33,094 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-26 14:11:33,095 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-26 14:11:33,095 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-26 14:11:33,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-26 14:11:33,096 INFO L138 SettingsManager]: * Use SBE=true [2022-07-26 14:11:33,096 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-26 14:11:33,096 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-26 14:11:33,096 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-26 14:11:33,096 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-26 14:11:33,096 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-26 14:11:33,096 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-26 14:11:33,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-26 14:11:33,097 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-26 14:11:33,097 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-26 14:11:33,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-26 14:11:33,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-26 14:11:33,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-26 14:11:33,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-26 14:11:33,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-26 14:11:33,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-26 14:11:33,097 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-26 14:11:33,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-26 14:11:33,098 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-26 14:11:33,098 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-26 14:11:33,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-26 14:11:33,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-26 14:11:33,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-26 14:11:33,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-26 14:11:33,098 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-26 14:11:33,098 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-07-26 14:11:33,099 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-26 14:11:33,099 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-26 14:11:33,278 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-26 14:11:33,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-26 14:11:33,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-26 14:11:33,298 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-26 14:11:33,298 INFO L275 PluginConnector]: CDTParser initialized [2022-07-26 14:11:33,299 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-match-symm.wvr.c [2022-07-26 14:11:33,339 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79f4b86ed/c00e0e18eb4b44f999dfb86b75cf347e/FLAG395e594e9 [2022-07-26 14:11:33,649 INFO L306 CDTParser]: Found 1 translation units. [2022-07-26 14:11:33,650 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-symm.wvr.c [2022-07-26 14:11:33,657 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79f4b86ed/c00e0e18eb4b44f999dfb86b75cf347e/FLAG395e594e9 [2022-07-26 14:11:34,076 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79f4b86ed/c00e0e18eb4b44f999dfb86b75cf347e [2022-07-26 14:11:34,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-26 14:11:34,080 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-26 14:11:34,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-26 14:11:34,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-26 14:11:34,084 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-26 14:11:34,085 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.07 02:11:34" (1/1) ... [2022-07-26 14:11:34,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@714777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:11:34, skipping insertion in model container [2022-07-26 14:11:34,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.07 02:11:34" (1/1) ... [2022-07-26 14:11:34,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-26 14:11:34,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-26 14:11:34,299 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-symm.wvr.c[2584,2597] [2022-07-26 14:11:34,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-26 14:11:34,323 INFO L203 MainTranslator]: Completed pre-run [2022-07-26 14:11:34,353 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-match-symm.wvr.c[2584,2597] [2022-07-26 14:11:34,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-26 14:11:34,370 INFO L208 MainTranslator]: Completed translation [2022-07-26 14:11:34,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:11:34 WrapperNode [2022-07-26 14:11:34,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-26 14:11:34,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-26 14:11:34,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-26 14:11:34,372 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-26 14:11:34,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:11:34" (1/1) ... [2022-07-26 14:11:34,389 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:11:34" (1/1) ... [2022-07-26 14:11:34,415 INFO L137 Inliner]: procedures = 22, calls = 27, calls flagged for inlining = 11, calls inlined = 17, statements flattened = 170 [2022-07-26 14:11:34,416 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-26 14:11:34,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-26 14:11:34,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-26 14:11:34,416 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-26 14:11:34,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:11:34" (1/1) ... [2022-07-26 14:11:34,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:11:34" (1/1) ... [2022-07-26 14:11:34,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:11:34" (1/1) ... [2022-07-26 14:11:34,434 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:11:34" (1/1) ... [2022-07-26 14:11:34,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:11:34" (1/1) ... [2022-07-26 14:11:34,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:11:34" (1/1) ... [2022-07-26 14:11:34,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:11:34" (1/1) ... [2022-07-26 14:11:34,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-26 14:11:34,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-26 14:11:34,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-26 14:11:34,448 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-26 14:11:34,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:11:34" (1/1) ... [2022-07-26 14:11:34,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 14:11:34,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 14:11:34,478 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 14:11:34,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-26 14:11:34,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-26 14:11:34,513 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-26 14:11:34,513 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-26 14:11:34,514 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-26 14:11:34,514 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-26 14:11:34,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-26 14:11:34,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-26 14:11:34,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-26 14:11:34,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-26 14:11:34,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-26 14:11:34,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-26 14:11:34,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-26 14:11:34,516 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-26 14:11:34,610 INFO L234 CfgBuilder]: Building ICFG [2022-07-26 14:11:34,611 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-26 14:11:34,900 INFO L275 CfgBuilder]: Performing block encoding [2022-07-26 14:11:34,907 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-26 14:11:34,907 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-26 14:11:34,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.07 02:11:34 BoogieIcfgContainer [2022-07-26 14:11:34,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-26 14:11:34,910 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-26 14:11:34,910 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-26 14:11:34,926 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-26 14:11:34,926 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 14:11:34,927 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.07 02:11:34" (1/3) ... [2022-07-26 14:11:34,927 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29ad9ca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.07 02:11:34, skipping insertion in model container [2022-07-26 14:11:34,927 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 14:11:34,928 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:11:34" (2/3) ... [2022-07-26 14:11:34,928 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29ad9ca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.07 02:11:34, skipping insertion in model container [2022-07-26 14:11:34,928 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 14:11:34,928 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.07 02:11:34" (3/3) ... [2022-07-26 14:11:34,929 INFO L322 chiAutomizerObserver]: Analyzing ICFG chl-match-symm.wvr.c [2022-07-26 14:11:35,007 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-26 14:11:35,030 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 229 places, 243 transitions, 502 flow [2022-07-26 14:11:35,091 INFO L129 PetriNetUnfolder]: 19/239 cut-off events. [2022-07-26 14:11:35,091 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-26 14:11:35,099 INFO L84 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 239 events. 19/239 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 279 event pairs, 0 based on Foata normal form. 0/220 useless extension candidates. Maximal degree in co-relation 165. Up to 2 conditions per place. [2022-07-26 14:11:35,099 INFO L82 GeneralOperation]: Start removeDead. Operand has 229 places, 243 transitions, 502 flow [2022-07-26 14:11:35,108 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 227 places, 239 transitions, 490 flow [2022-07-26 14:11:35,110 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-07-26 14:11:35,115 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 227 places, 239 transitions, 490 flow [2022-07-26 14:11:35,117 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 227 places, 239 transitions, 490 flow [2022-07-26 14:11:35,117 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 227 places, 239 transitions, 490 flow [2022-07-26 14:11:35,146 INFO L129 PetriNetUnfolder]: 19/239 cut-off events. [2022-07-26 14:11:35,146 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-26 14:11:35,148 INFO L84 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 239 events. 19/239 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 277 event pairs, 0 based on Foata normal form. 0/220 useless extension candidates. Maximal degree in co-relation 165. Up to 2 conditions per place. [2022-07-26 14:11:35,155 INFO L116 LiptonReduction]: Number of co-enabled transitions 14168 [2022-07-26 14:11:40,992 INFO L131 LiptonReduction]: Checked pairs total: 12681 [2022-07-26 14:11:40,992 INFO L133 LiptonReduction]: Total number of compositions: 313 [2022-07-26 14:11:41,003 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2022-07-26 14:11:41,004 INFO L302 stractBuchiCegarLoop]: Hoare is false [2022-07-26 14:11:41,004 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-26 14:11:41,004 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-26 14:11:41,004 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-26 14:11:41,004 INFO L306 stractBuchiCegarLoop]: Difference is false [2022-07-26 14:11:41,004 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-26 14:11:41,004 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-26 14:11:41,005 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-07-26 14:11:41,022 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-26 14:11:41,022 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-26 14:11:41,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.07 02:11:41 BoogieIcfgContainer [2022-07-26 14:11:41,025 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-26 14:11:41,027 INFO L158 Benchmark]: Toolchain (without parser) took 6944.91ms. Allocated memory was 179.3MB in the beginning and 264.2MB in the end (delta: 84.9MB). Free memory was 120.1MB in the beginning and 143.6MB in the end (delta: -23.4MB). Peak memory consumption was 62.5MB. Max. memory is 8.0GB. [2022-07-26 14:11:41,027 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 179.3MB. Free memory is still 136.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-07-26 14:11:41,028 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.39ms. Allocated memory was 179.3MB in the beginning and 264.2MB in the end (delta: 84.9MB). Free memory was 119.9MB in the beginning and 235.1MB in the end (delta: -115.2MB). Peak memory consumption was 14.2MB. Max. memory is 8.0GB. [2022-07-26 14:11:41,029 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.86ms. Allocated memory is still 264.2MB. Free memory was 235.1MB in the beginning and 232.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-07-26 14:11:41,030 INFO L158 Benchmark]: Boogie Preprocessor took 31.14ms. Allocated memory is still 264.2MB. Free memory was 232.4MB in the beginning and 231.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-07-26 14:11:41,030 INFO L158 Benchmark]: RCFGBuilder took 461.25ms. Allocated memory is still 264.2MB. Free memory was 231.4MB in the beginning and 213.6MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-07-26 14:11:41,031 INFO L158 Benchmark]: BuchiAutomizer took 6115.00ms. Allocated memory is still 264.2MB. Free memory was 213.0MB in the beginning and 143.6MB in the end (delta: 69.5MB). Peak memory consumption was 70.0MB. Max. memory is 8.0GB. [2022-07-26 14:11:41,033 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 179.3MB. Free memory is still 136.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 288.39ms. Allocated memory was 179.3MB in the beginning and 264.2MB in the end (delta: 84.9MB). Free memory was 119.9MB in the beginning and 235.1MB in the end (delta: -115.2MB). Peak memory consumption was 14.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.86ms. Allocated memory is still 264.2MB. Free memory was 235.1MB in the beginning and 232.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.14ms. Allocated memory is still 264.2MB. Free memory was 232.4MB in the beginning and 231.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 461.25ms. Allocated memory is still 264.2MB. Free memory was 231.4MB in the beginning and 213.6MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * BuchiAutomizer took 6115.00ms. Allocated memory is still 264.2MB. Free memory was 213.0MB in the beginning and 143.6MB in the end (delta: 69.5MB). Peak memory consumption was 70.0MB. 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 6.0s 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: 5.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.9s, 227 PlacesBefore, 18 PlacesAfterwards, 239 TransitionsBefore, 11 TransitionsAfterwards, 14168 CoEnabledTransitionPairs, 8 FixpointIterations, 68 TrivialSequentialCompositions, 156 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 58 ConcurrentYvCompositions, 19 ChoiceCompositions, 313 TotalNumberOfCompositions, 12681 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12681, positive: 12681, positive conditional: 0, positive unconditional: 12681, 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: 8673, positive: 8673, positive conditional: 0, positive unconditional: 8673, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 12681, positive: 4008, positive conditional: 0, positive unconditional: 4008, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 8673, unknown conditional: 0, unknown unconditional: 8673] , 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! [2022-07-26 14:11:41,061 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...