/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/BuchiAutomizerCInline.xml -s ../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-semanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-2b.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-21b0908 [2022-07-22 12:10:13,493 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 12:10:13,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 12:10:13,534 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 12:10:13,535 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 12:10:13,536 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 12:10:13,538 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 12:10:13,541 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 12:10:13,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 12:10:13,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 12:10:13,546 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 12:10:13,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 12:10:13,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 12:10:13,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 12:10:13,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 12:10:13,573 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 12:10:13,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 12:10:13,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 12:10:13,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 12:10:13,587 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 12:10:13,592 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 12:10:13,594 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 12:10:13,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 12:10:13,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 12:10:13,603 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 12:10:13,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 12:10:13,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 12:10:13,613 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 12:10:13,615 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 12:10:13,616 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 12:10:13,617 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 12:10:13,617 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 12:10:13,618 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 12:10:13,620 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 12:10:13,622 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 12:10:13,623 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 12:10:13,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 12:10:13,624 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 12:10:13,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 12:10:13,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 12:10:13,627 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 12:10:13,629 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 12:10:13,636 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-semanticLbe.epf [2022-07-22 12:10:13,688 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 12:10:13,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 12:10:13,689 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 12:10:13,690 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 12:10:13,691 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 12:10:13,691 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 12:10:13,692 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 12:10:13,692 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 12:10:13,692 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 12:10:13,693 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 12:10:13,694 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 12:10:13,694 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 12:10:13,694 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 12:10:13,694 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 12:10:13,695 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 12:10:13,695 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 12:10:13,695 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 12:10:13,695 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 12:10:13,695 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 12:10:13,697 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 12:10:13,697 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 12:10:13,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 12:10:13,701 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 12:10:13,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 12:10:13,702 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 12:10:13,705 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 12:10:13,705 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 12:10:13,706 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 12:10:13,706 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 12:10:13,706 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 12:10:13,706 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 12:10:13,708 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 12:10:13,708 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-22 12:10:14,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 12:10:14,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 12:10:14,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 12:10:14,167 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 12:10:14,168 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 12:10:14,170 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-2b.i [2022-07-22 12:10:14,278 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/997d422c5/f92720c35d1c4f05b6b8f46be8c635b2/FLAGfc706308a [2022-07-22 12:10:14,970 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 12:10:14,970 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-2b.i [2022-07-22 12:10:14,986 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/997d422c5/f92720c35d1c4f05b6b8f46be8c635b2/FLAGfc706308a [2022-07-22 12:10:15,251 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/997d422c5/f92720c35d1c4f05b6b8f46be8c635b2 [2022-07-22 12:10:15,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 12:10:15,260 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-22 12:10:15,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 12:10:15,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 12:10:15,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 12:10:15,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:10:15" (1/1) ... [2022-07-22 12:10:15,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc6d038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:15, skipping insertion in model container [2022-07-22 12:10:15,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:10:15" (1/1) ... [2022-07-22 12:10:15,279 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 12:10:15,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 12:10:15,813 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-2b.i[30358,30371] [2022-07-22 12:10:15,833 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:10:15,845 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 12:10:15,892 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-2b.i[30358,30371] [2022-07-22 12:10:15,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:10:15,944 INFO L208 MainTranslator]: Completed translation [2022-07-22 12:10:15,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:15 WrapperNode [2022-07-22 12:10:15,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 12:10:15,946 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 12:10:15,946 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 12:10:15,947 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 12:10:15,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:15" (1/1) ... [2022-07-22 12:10:15,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:15" (1/1) ... [2022-07-22 12:10:16,006 INFO L137 Inliner]: procedures = 170, calls = 34, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 102 [2022-07-22 12:10:16,006 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 12:10:16,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 12:10:16,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 12:10:16,007 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 12:10:16,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:15" (1/1) ... [2022-07-22 12:10:16,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:15" (1/1) ... [2022-07-22 12:10:16,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:15" (1/1) ... [2022-07-22 12:10:16,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:15" (1/1) ... [2022-07-22 12:10:16,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:15" (1/1) ... [2022-07-22 12:10:16,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:15" (1/1) ... [2022-07-22 12:10:16,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:15" (1/1) ... [2022-07-22 12:10:16,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 12:10:16,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 12:10:16,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 12:10:16,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 12:10:16,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:15" (1/1) ... [2022-07-22 12:10:16,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:10:16,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:10:16,086 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 12:10:16,103 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 12:10:16,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 12:10:16,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 12:10:16,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 12:10:16,226 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2022-07-22 12:10:16,227 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2022-07-22 12:10:16,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 12:10:16,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 12:10:16,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 12:10:16,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 12:10:16,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 12:10:16,232 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2022-07-22 12:10:16,232 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2022-07-22 12:10:16,234 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 12:10:16,440 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 12:10:16,443 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 12:10:16,844 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 12:10:16,924 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 12:10:16,927 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 12:10:16,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:10:16 BoogieIcfgContainer [2022-07-22 12:10:16,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 12:10:16,932 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 12:10:16,932 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 12:10:16,937 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 12:10:16,938 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:10:16,938 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 12:10:15" (1/3) ... [2022-07-22 12:10:16,940 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32839566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 12:10:16, skipping insertion in model container [2022-07-22 12:10:16,940 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:10:16,940 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:15" (2/3) ... [2022-07-22 12:10:16,940 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32839566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 12:10:16, skipping insertion in model container [2022-07-22 12:10:16,941 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:10:16,941 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:10:16" (3/3) ... [2022-07-22 12:10:16,943 INFO L322 chiAutomizerObserver]: Analyzing ICFG read_write_lock-2b.i [2022-07-22 12:10:17,043 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-07-22 12:10:17,091 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 121 places, 114 transitions, 260 flow [2022-07-22 12:10:17,147 INFO L129 PetriNetUnfolder]: 2/106 cut-off events. [2022-07-22 12:10:17,148 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-07-22 12:10:17,153 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 84 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 12:10:17,154 INFO L82 GeneralOperation]: Start removeDead. Operand has 121 places, 114 transitions, 260 flow [2022-07-22 12:10:17,163 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 106 transitions, 236 flow [2022-07-22 12:10:17,167 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-22 12:10:17,185 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 117 places, 106 transitions, 236 flow [2022-07-22 12:10:17,187 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 117 places, 106 transitions, 236 flow [2022-07-22 12:10:17,188 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 117 places, 106 transitions, 236 flow [2022-07-22 12:10:17,228 INFO L129 PetriNetUnfolder]: 2/106 cut-off events. [2022-07-22 12:10:17,229 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-07-22 12:10:17,230 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 84 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 12:10:17,234 INFO L116 LiptonReduction]: Number of co-enabled transitions 2246 [2022-07-22 12:10:21,228 INFO L131 LiptonReduction]: Checked pairs total: 8370 [2022-07-22 12:10:21,228 INFO L133 LiptonReduction]: Total number of compositions: 81 [2022-07-22 12:10:21,254 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 12:10:21,254 INFO L301 stractBuchiCegarLoop]: Hoare is false [2022-07-22 12:10:21,255 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 12:10:21,255 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 12:10:21,255 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 12:10:21,255 INFO L305 stractBuchiCegarLoop]: Difference is false [2022-07-22 12:10:21,255 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 12:10:21,256 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 12:10:21,258 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-07-22 12:10:21,693 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 12:10:21,693 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-22 12:10:21,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 12:10:21 BoogieIcfgContainer [2022-07-22 12:10:21,699 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 12:10:21,701 INFO L158 Benchmark]: Toolchain (without parser) took 6443.79ms. Allocated memory was 154.1MB in the beginning and 194.0MB in the end (delta: 39.8MB). Free memory was 127.5MB in the beginning and 73.3MB in the end (delta: 54.2MB). Peak memory consumption was 94.7MB. Max. memory is 8.0GB. [2022-07-22 12:10:21,701 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 154.1MB. Free memory is still 125.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-07-22 12:10:21,702 INFO L158 Benchmark]: CACSL2BoogieTranslator took 683.42ms. Allocated memory is still 154.1MB. Free memory was 127.3MB in the beginning and 108.6MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-07-22 12:10:21,703 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.08ms. Allocated memory is still 154.1MB. Free memory was 108.4MB in the beginning and 106.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-07-22 12:10:21,704 INFO L158 Benchmark]: Boogie Preprocessor took 31.22ms. Allocated memory is still 154.1MB. Free memory was 106.4MB in the beginning and 104.9MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-07-22 12:10:21,705 INFO L158 Benchmark]: RCFGBuilder took 891.10ms. Allocated memory is still 154.1MB. Free memory was 104.9MB in the beginning and 123.8MB in the end (delta: -18.9MB). Peak memory consumption was 5.5MB. Max. memory is 8.0GB. [2022-07-22 12:10:21,706 INFO L158 Benchmark]: BuchiAutomizer took 4767.39ms. Allocated memory was 154.1MB in the beginning and 194.0MB in the end (delta: 39.8MB). Free memory was 123.8MB in the beginning and 73.3MB in the end (delta: 50.5MB). Peak memory consumption was 91.3MB. Max. memory is 8.0GB. [2022-07-22 12:10:21,710 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 154.1MB. Free memory is still 125.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 683.42ms. Allocated memory is still 154.1MB. Free memory was 127.3MB in the beginning and 108.6MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 60.08ms. Allocated memory is still 154.1MB. Free memory was 108.4MB in the beginning and 106.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.22ms. Allocated memory is still 154.1MB. Free memory was 106.4MB in the beginning and 104.9MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 891.10ms. Allocated memory is still 154.1MB. Free memory was 104.9MB in the beginning and 123.8MB in the end (delta: -18.9MB). Peak memory consumption was 5.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 4767.39ms. Allocated memory was 154.1MB in the beginning and 194.0MB in the end (delta: 39.8MB). Free memory was 123.8MB in the beginning and 73.3MB in the end (delta: 50.5MB). Peak memory consumption was 91.3MB. 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 4.6s 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: 4.1s - 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: 4.0s, 117 PlacesBefore, 48 PlacesAfterwards, 106 TransitionsBefore, 37 TransitionsAfterwards, 2246 CoEnabledTransitionPairs, 7 FixpointIterations, 34 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 81 TotalNumberOfCompositions, 8370 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4946, positive: 4713, positive conditional: 0, positive unconditional: 4713, negative: 233, negative conditional: 0, negative unconditional: 233, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1770, positive: 1721, positive conditional: 0, positive unconditional: 1721, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1770, positive: 1656, positive conditional: 0, positive unconditional: 1656, negative: 114, negative conditional: 0, negative unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 114, positive: 65, positive conditional: 0, positive unconditional: 65, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 198, positive: 73, positive conditional: 0, positive unconditional: 73, negative: 125, negative conditional: 0, negative unconditional: 125, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4946, positive: 2992, positive conditional: 0, positive unconditional: 2992, negative: 184, negative conditional: 0, negative unconditional: 184, unknown: 1770, unknown conditional: 0, unknown unconditional: 1770] , Statistics on independence cache: Total cache size (in pairs): 378, Positive cache size: 353, Positive conditional cache size: 0, Positive unconditional cache size: 353, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25 RESULT: Ultimate proved your program to be correct! [2022-07-22 12:10:21,753 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...