/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-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-21b0908 [2022-07-22 11:39:48,758 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 11:39:48,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 11:39:48,796 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 11:39:48,797 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 11:39:48,798 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 11:39:48,800 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 11:39:48,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 11:39:48,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 11:39:48,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 11:39:48,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 11:39:48,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 11:39:48,832 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 11:39:48,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 11:39:48,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 11:39:48,836 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 11:39:48,837 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 11:39:48,838 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 11:39:48,840 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 11:39:48,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 11:39:48,844 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 11:39:48,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 11:39:48,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 11:39:48,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 11:39:48,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 11:39:48,852 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 11:39:48,853 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 11:39:48,853 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 11:39:48,854 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 11:39:48,855 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 11:39:48,856 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 11:39:48,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 11:39:48,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 11:39:48,858 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 11:39:48,859 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 11:39:48,860 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 11:39:48,860 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 11:39:48,861 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 11:39:48,862 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 11:39:48,862 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 11:39:48,863 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 11:39:48,864 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 11:39:48,865 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 11:39:48,896 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 11:39:48,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 11:39:48,897 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 11:39:48,897 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 11:39:48,898 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 11:39:48,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 11:39:48,899 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 11:39:48,899 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 11:39:48,899 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 11:39:48,899 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 11:39:48,900 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 11:39:48,900 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 11:39:48,900 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 11:39:48,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 11:39:48,901 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 11:39:48,901 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 11:39:48,901 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 11:39:48,902 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 11:39:48,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 11:39:48,902 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 11:39:48,902 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 11:39:48,903 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 11:39:48,903 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 11:39:48,903 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 11:39:48,903 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 11:39:48,904 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 11:39:48,904 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 11:39:48,904 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 11:39:48,904 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 11:39:48,905 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 11:39:48,905 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 11:39:48,905 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 11:39:48,906 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 11:39:48,907 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-22 11:39:49,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 11:39:49,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 11:39:49,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 11:39:49,361 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 11:39:49,362 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 11:39:49,363 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i [2022-07-22 11:39:49,454 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55215d5ae/b38f53cd3f0b4f4199eabefb9b290533/FLAGfdadfe127 [2022-07-22 11:39:50,159 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 11:39:50,160 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i [2022-07-22 11:39:50,175 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55215d5ae/b38f53cd3f0b4f4199eabefb9b290533/FLAGfdadfe127 [2022-07-22 11:39:50,425 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55215d5ae/b38f53cd3f0b4f4199eabefb9b290533 [2022-07-22 11:39:50,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 11:39:50,435 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-22 11:39:50,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 11:39:50,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 11:39:50,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 11:39:50,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:39:50" (1/1) ... [2022-07-22 11:39:50,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@416b500a 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 11:39:50,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:39:50" (1/1) ... [2022-07-22 11:39:50,453 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 11:39:50,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 11:39:50,678 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-07-22 11:39:50,895 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-2.i[31244,31257] [2022-07-22 11:39:50,913 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 11:39:50,933 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 11:39:50,963 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-07-22 11:39:51,008 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-2.i[31244,31257] [2022-07-22 11:39:51,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 11:39:51,073 INFO L208 MainTranslator]: Completed translation [2022-07-22 11:39:51,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:39:51 WrapperNode [2022-07-22 11:39:51,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 11:39:51,075 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 11:39:51,075 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 11:39:51,075 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 11:39:51,083 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 11:39:51,099 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 11:39:51,131 INFO L137 Inliner]: procedures = 174, calls = 51, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 119 [2022-07-22 11:39:51,131 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 11:39:51,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 11:39:51,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 11:39:51,132 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 11:39:51,142 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 11:39:51,142 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 11:39:51,146 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 11:39:51,146 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 11:39:51,153 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 11:39:51,156 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 11:39:51,158 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 11:39:51,161 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 11:39:51,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 11:39:51,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 11:39:51,162 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 11:39:51,164 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 11:39:51,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 11:39:51,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 11:39:51,215 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 11:39:51,233 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 11:39:51,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 11:39:51,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 11:39:51,315 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-22 11:39:51,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 11:39:51,317 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2022-07-22 11:39:51,318 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2022-07-22 11:39:51,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 11:39:51,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 11:39:51,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 11:39:51,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-22 11:39:51,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 11:39:51,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 11:39:51,319 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2022-07-22 11:39:51,319 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2022-07-22 11:39:51,321 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 11:39:51,516 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 11:39:51,518 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 11:39:51,815 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 11:39:51,858 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 11:39:51,858 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 11:39:51,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:39:51 BoogieIcfgContainer [2022-07-22 11:39:51,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 11:39:51,864 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 11:39:51,864 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 11:39:51,870 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 11:39:51,871 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 11:39:51,871 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 11:39:50" (1/3) ... [2022-07-22 11:39:51,872 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a1169c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 11:39:51, skipping insertion in model container [2022-07-22 11:39:51,873 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 11:39:51,873 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 11:39:51,874 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a1169c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 11:39:51, skipping insertion in model container [2022-07-22 11:39:51,874 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 11:39:51,874 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:39:51" (3/3) ... [2022-07-22 11:39:51,875 INFO L322 chiAutomizerObserver]: Analyzing ICFG read_write_lock-2.i [2022-07-22 11:39:51,972 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-07-22 11:39:52,006 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 116 transitions, 264 flow [2022-07-22 11:39:52,057 INFO L129 PetriNetUnfolder]: 2/108 cut-off events. [2022-07-22 11:39:52,058 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-07-22 11:39:52,064 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 108 events. 2/108 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 90 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2022-07-22 11:39:52,064 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 116 transitions, 264 flow [2022-07-22 11:39:52,073 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 108 transitions, 240 flow [2022-07-22 11:39:52,088 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 11:39:52,088 INFO L301 stractBuchiCegarLoop]: Hoare is false [2022-07-22 11:39:52,088 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 11:39:52,088 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 11:39:52,088 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 11:39:52,088 INFO L305 stractBuchiCegarLoop]: Difference is false [2022-07-22 11:39:52,089 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 11:39:52,089 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 11:39:52,091 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-07-22 11:39:57,193 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 11:39:57,193 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-22 11:39:57,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 11:39:57 BoogieIcfgContainer [2022-07-22 11:39:57,199 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 11:39:57,202 INFO L158 Benchmark]: Toolchain (without parser) took 6769.78ms. Allocated memory was 151.0MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 123.7MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 370.2MB. Max. memory is 8.0GB. [2022-07-22 11:39:57,203 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 151.0MB. Free memory is still 122.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-07-22 11:39:57,204 INFO L158 Benchmark]: CACSL2BoogieTranslator took 635.54ms. Allocated memory is still 151.0MB. Free memory was 123.5MB in the beginning and 104.1MB in the end (delta: 19.3MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-07-22 11:39:57,204 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.77ms. Allocated memory is still 151.0MB. Free memory was 104.1MB in the beginning and 101.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-07-22 11:39:57,205 INFO L158 Benchmark]: Boogie Preprocessor took 29.19ms. Allocated memory is still 151.0MB. Free memory was 101.9MB in the beginning and 100.4MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-07-22 11:39:57,206 INFO L158 Benchmark]: RCFGBuilder took 699.24ms. Allocated memory is still 151.0MB. Free memory was 100.4MB in the beginning and 120.6MB in the end (delta: -20.2MB). Peak memory consumption was 8.9MB. Max. memory is 8.0GB. [2022-07-22 11:39:57,207 INFO L158 Benchmark]: BuchiAutomizer took 5335.79ms. Allocated memory was 151.0MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 120.6MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 366.5MB. Max. memory is 8.0GB. [2022-07-22 11:39:57,211 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 151.0MB. Free memory is still 122.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 635.54ms. Allocated memory is still 151.0MB. Free memory was 123.5MB in the beginning and 104.1MB in the end (delta: 19.3MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 56.77ms. Allocated memory is still 151.0MB. Free memory was 104.1MB in the beginning and 101.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.19ms. Allocated memory is still 151.0MB. Free memory was 101.9MB in the beginning and 100.4MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 699.24ms. Allocated memory is still 151.0MB. Free memory was 100.4MB in the beginning and 120.6MB in the end (delta: -20.2MB). Peak memory consumption was 8.9MB. Max. memory is 8.0GB. * BuchiAutomizer took 5335.79ms. Allocated memory was 151.0MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 120.6MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 366.5MB. 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 5.1s and 0 iterations. TraceHistogramMax:0. Analysis of lassos took 0.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-22 11:39:57,265 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...