/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-noLbe.epf -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-21b0908 [2022-07-22 11:39:49,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 11:39:49,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 11:39:49,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 11:39:49,111 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 11:39:49,113 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 11:39:49,120 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 11:39:49,125 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 11:39:49,130 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 11:39:49,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 11:39:49,138 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 11:39:49,141 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 11:39:49,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 11:39:49,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 11:39:49,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 11:39:49,152 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 11:39:49,154 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 11:39:49,155 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 11:39:49,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 11:39:49,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 11:39:49,163 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 11:39:49,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 11:39:49,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 11:39:49,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 11:39:49,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 11:39:49,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-07-22 11:39:49,186 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 11:39:49,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 11:39:49,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 11:39:49,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 11:39:49,190 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 11:39:49,190 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 11:39:49,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 11:39:49,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 11:39:49,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 11:39:49,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 11:39:49,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 11:39:49,196 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2022-07-22 11:39:49,246 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 11:39:49,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 11:39:49,248 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 11:39:49,248 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 11:39:49,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 11:39:49,251 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 11:39:49,251 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 11:39:49,251 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 11:39:49,251 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 11:39:49,252 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 11:39:49,253 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 11:39:49,253 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 11:39:49,253 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 11:39:49,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 11:39:49,253 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 11:39:49,254 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 11:39:49,254 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 11:39:49,254 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 11:39:49,255 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 11:39:49,255 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 11:39:49,255 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 11:39:49,255 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 11:39:49,255 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 11:39:49,256 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 11:39:49,256 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 11:39:49,256 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 11:39:49,256 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 11:39:49,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 11:39:49,257 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 11:39:49,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 11:39:49,257 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 11:39:49,258 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 11:39:49,260 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 11:39:49,261 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-22 11:39:49,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 11:39:49,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 11:39:49,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 11:39:49,753 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 11:39:49,754 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 11:39:49,756 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2022-07-22 11:39:49,835 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ade61a64/25a3cbd1278c40adb97e489cd298a2e2/FLAG6e7b96fb0 [2022-07-22 11:39:50,609 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 11:39:50,609 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2022-07-22 11:39:50,629 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ade61a64/25a3cbd1278c40adb97e489cd298a2e2/FLAG6e7b96fb0 [2022-07-22 11:39:50,870 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ade61a64/25a3cbd1278c40adb97e489cd298a2e2 [2022-07-22 11:39:50,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 11:39:50,880 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-22 11:39:50,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 11:39:50,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 11:39:50,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 11:39:50,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:39:50" (1/1) ... [2022-07-22 11:39:50,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@572c76f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:39:50, skipping insertion in model container [2022-07-22 11:39:50,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:39:50" (1/1) ... [2022-07-22 11:39:50,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 11:39:50,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 11:39:51,193 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-07-22 11:39:51,362 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i[31246,31259] [2022-07-22 11:39:51,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 11:39:51,388 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 11:39:51,409 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-07-22 11:39:51,437 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i[31246,31259] [2022-07-22 11:39:51,444 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 11:39:51,500 INFO L208 MainTranslator]: Completed translation [2022-07-22 11:39:51,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:39:51 WrapperNode [2022-07-22 11:39:51,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 11:39:51,503 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 11:39:51,503 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 11:39:51,503 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 11:39:51,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:39:51" (1/1) ... [2022-07-22 11:39:51,571 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:39:51" (1/1) ... [2022-07-22 11:39:51,632 INFO L137 Inliner]: procedures = 175, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 114 [2022-07-22 11:39:51,633 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 11:39:51,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 11:39:51,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 11:39:51,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 11:39:51,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:39:51" (1/1) ... [2022-07-22 11:39:51,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:39:51" (1/1) ... [2022-07-22 11:39:51,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:39:51" (1/1) ... [2022-07-22 11:39:51,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:39:51" (1/1) ... [2022-07-22 11:39:51,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:39:51" (1/1) ... [2022-07-22 11:39:51,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:39:51" (1/1) ... [2022-07-22 11:39:51,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:39:51" (1/1) ... [2022-07-22 11:39:51,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 11:39:51,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 11:39:51,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 11:39:51,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 11:39:51,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:39:51" (1/1) ... [2022-07-22 11:39:51,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 11:39:51,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 11:39:51,769 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 11:39:51,798 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 11:39:51,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 11:39:51,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 11:39:51,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-22 11:39:51,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 11:39:51,857 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2022-07-22 11:39:51,858 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2022-07-22 11:39:51,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 11:39:51,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 11:39:51,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 11:39:51,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-22 11:39:51,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 11:39:51,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 11:39:51,859 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2022-07-22 11:39:51,859 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2022-07-22 11:39:51,861 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 11:39:52,007 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 11:39:52,009 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 11:39:52,281 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 11:39:52,375 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 11:39:52,375 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 11:39:52,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:39:52 BoogieIcfgContainer [2022-07-22 11:39:52,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 11:39:52,386 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 11:39:52,387 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 11:39:52,399 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 11:39:52,401 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 11:39:52,401 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 11:39:50" (1/3) ... [2022-07-22 11:39:52,403 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68113ad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 11:39:52, skipping insertion in model container [2022-07-22 11:39:52,404 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 11:39:52,404 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:39:51" (2/3) ... [2022-07-22 11:39:52,404 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68113ad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 11:39:52, skipping insertion in model container [2022-07-22 11:39:52,405 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 11:39:52,405 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:39:52" (3/3) ... [2022-07-22 11:39:52,410 INFO L322 chiAutomizerObserver]: Analyzing ICFG read_write_lock-1.i [2022-07-22 11:39:52,511 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-07-22 11:39:52,549 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 121 places, 114 transitions, 260 flow [2022-07-22 11:39:52,601 INFO L129 PetriNetUnfolder]: 2/106 cut-off events. [2022-07-22 11:39:52,601 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-07-22 11:39:52,608 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 106 events. 2/106 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2022-07-22 11:39:52,609 INFO L82 GeneralOperation]: Start removeDead. Operand has 121 places, 114 transitions, 260 flow [2022-07-22 11:39:52,619 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 106 transitions, 236 flow [2022-07-22 11:39:52,641 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 11:39:52,641 INFO L301 stractBuchiCegarLoop]: Hoare is false [2022-07-22 11:39:52,642 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 11:39:52,642 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 11:39:52,642 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 11:39:52,642 INFO L305 stractBuchiCegarLoop]: Difference is false [2022-07-22 11:39:52,642 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 11:39:52,643 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 11:39:52,645 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-07-22 11:39:58,148 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 11:39:58,149 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-22 11:39:58,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 11:39:58 BoogieIcfgContainer [2022-07-22 11:39:58,158 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 11:39:58,163 INFO L158 Benchmark]: Toolchain (without parser) took 7284.58ms. Allocated memory was 153.1MB in the beginning and 629.1MB in the end (delta: 476.1MB). Free memory was 126.8MB in the beginning and 329.2MB in the end (delta: -202.4MB). Peak memory consumption was 314.7MB. Max. memory is 8.0GB. [2022-07-22 11:39:58,165 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 153.1MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-07-22 11:39:58,167 INFO L158 Benchmark]: CACSL2BoogieTranslator took 620.34ms. Allocated memory is still 153.1MB. Free memory was 126.6MB in the beginning and 106.8MB in the end (delta: 19.8MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-07-22 11:39:58,169 INFO L158 Benchmark]: Boogie Procedure Inliner took 130.23ms. Allocated memory is still 153.1MB. Free memory was 106.8MB in the beginning and 104.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-07-22 11:39:58,170 INFO L158 Benchmark]: Boogie Preprocessor took 69.17ms. Allocated memory is still 153.1MB. Free memory was 104.5MB in the beginning and 103.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-07-22 11:39:58,173 INFO L158 Benchmark]: RCFGBuilder took 680.86ms. Allocated memory is still 153.1MB. Free memory was 102.9MB in the beginning and 125.3MB in the end (delta: -22.3MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. [2022-07-22 11:39:58,175 INFO L158 Benchmark]: BuchiAutomizer took 5771.36ms. Allocated memory was 153.1MB in the beginning and 629.1MB in the end (delta: 476.1MB). Free memory was 125.3MB in the beginning and 329.2MB in the end (delta: -204.0MB). Peak memory consumption was 311.9MB. Max. memory is 8.0GB. [2022-07-22 11:39:58,191 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 153.1MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 620.34ms. Allocated memory is still 153.1MB. Free memory was 126.6MB in the beginning and 106.8MB in the end (delta: 19.8MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 130.23ms. Allocated memory is still 153.1MB. Free memory was 106.8MB in the beginning and 104.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 69.17ms. Allocated memory is still 153.1MB. Free memory was 104.5MB in the beginning and 103.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 680.86ms. Allocated memory is still 153.1MB. Free memory was 102.9MB in the beginning and 125.3MB in the end (delta: -22.3MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. * BuchiAutomizer took 5771.36ms. Allocated memory was 153.1MB in the beginning and 629.1MB in the end (delta: 476.1MB). Free memory was 125.3MB in the beginning and 329.2MB in the end (delta: -204.0MB). Peak memory consumption was 311.9MB. 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 5.6s 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: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-22 11:39:58,265 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...