/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/scull.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-21b0908 [2022-07-22 12:10:13,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 12:10:13,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 12:10:13,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 12:10:13,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 12:10:13,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 12:10:13,758 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 12:10:13,763 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 12:10:13,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 12:10:13,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 12:10:13,776 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 12:10:13,799 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 12:10:13,800 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 12:10:13,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 12:10:13,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 12:10:13,811 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 12:10:13,812 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 12:10:13,815 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 12:10:13,819 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 12:10:13,829 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 12:10:13,834 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 12:10:13,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 12:10:13,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 12:10:13,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 12:10:13,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 12:10:13,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-07-22 12:10:13,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 12:10:13,862 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 12:10:13,864 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 12:10:13,869 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 12:10:13,933 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 12:10:13,934 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 12:10:13,935 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 12:10:13,935 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 12:10:13,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 12:10:13,937 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 12:10:13,937 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 12:10:13,938 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 12:10:13,938 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 12:10:13,939 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 12:10:13,939 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 12:10:13,939 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 12:10:13,940 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 12:10:13,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 12:10:13,940 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 12:10:13,940 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 12:10:13,941 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 12:10:13,941 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 12:10:13,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 12:10:13,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 12:10:13,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 12:10:13,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 12:10:13,942 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 12:10:13,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 12:10:13,942 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 12:10:13,942 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 12:10:13,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 12:10:13,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 12:10:13,943 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 12:10:13,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 12:10:13,944 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 12:10:13,947 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 12:10:13,947 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-22 12:10:14,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 12:10:14,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 12:10:14,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 12:10:14,362 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 12:10:14,363 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 12:10:14,365 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/scull.i [2022-07-22 12:10:14,460 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/944ae1f31/d2a90538cca44108a8841e7ce944b3f2/FLAG48518ea6e [2022-07-22 12:10:15,262 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 12:10:15,263 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/scull.i [2022-07-22 12:10:15,288 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/944ae1f31/d2a90538cca44108a8841e7ce944b3f2/FLAG48518ea6e [2022-07-22 12:10:15,533 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/944ae1f31/d2a90538cca44108a8841e7ce944b3f2 [2022-07-22 12:10:15,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 12:10:15,548 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-22 12:10:15,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 12:10:15,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 12:10:15,556 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 12:10:15,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:10:15" (1/1) ... [2022-07-22 12:10:15,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68a5a5ca 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 12:10:15,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:10:15" (1/1) ... [2022-07-22 12:10:15,570 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 12:10:15,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 12:10:16,212 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/scull.i[30879,30892] [2022-07-22 12:10:16,220 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/scull.i[31740,31753] [2022-07-22 12:10:16,228 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/scull.i[32508,32521] [2022-07-22 12:10:16,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:10:16,273 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 12:10:16,322 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/scull.i[30879,30892] [2022-07-22 12:10:16,335 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/scull.i[31740,31753] [2022-07-22 12:10:16,343 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/scull.i[32508,32521] [2022-07-22 12:10:16,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:10:16,418 INFO L208 MainTranslator]: Completed translation [2022-07-22 12:10:16,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:16 WrapperNode [2022-07-22 12:10:16,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 12:10:16,420 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 12:10:16,421 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 12:10:16,421 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 12:10:16,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:16" (1/1) ... [2022-07-22 12:10:16,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:16" (1/1) ... [2022-07-22 12:10:16,587 INFO L137 Inliner]: procedures = 185, calls = 58, calls flagged for inlining = 29, calls inlined = 25, statements flattened = 342 [2022-07-22 12:10:16,587 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 12:10:16,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 12:10:16,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 12:10:16,591 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 12:10:16,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:16" (1/1) ... [2022-07-22 12:10:16,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:16" (1/1) ... [2022-07-22 12:10:16,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:16" (1/1) ... [2022-07-22 12:10:16,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:16" (1/1) ... [2022-07-22 12:10:16,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:16" (1/1) ... [2022-07-22 12:10:16,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:16" (1/1) ... [2022-07-22 12:10:16,667 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:16" (1/1) ... [2022-07-22 12:10:16,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 12:10:16,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 12:10:16,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 12:10:16,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 12:10:16,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:16" (1/1) ... [2022-07-22 12:10:16,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:10:16,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:10:16,750 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 12:10:16,770 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 12:10:16,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 12:10:16,813 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-22 12:10:16,813 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-22 12:10:16,813 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-22 12:10:16,813 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-22 12:10:16,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 12:10:16,814 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-22 12:10:16,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 12:10:16,814 INFO L130 BoogieDeclarations]: Found specification of procedure loader [2022-07-22 12:10:16,814 INFO L138 BoogieDeclarations]: Found implementation of procedure loader [2022-07-22 12:10:16,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 12:10:16,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 12:10:16,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 12:10:16,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 12:10:16,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 12:10:16,817 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 12:10:16,983 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 12:10:16,989 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 12:10:17,127 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L890: assume { :end_inline_scull_trim } true; [2022-07-22 12:10:17,128 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L890-1: havoc scull_cleanup_module_#t~ret28#1; [2022-07-22 12:10:17,128 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint scull_trim_returnLabel#1: scull_cleanup_module_#t~ret28#1 := scull_trim_#res#1; [2022-07-22 12:10:17,128 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L887: assume { :end_inline_scull_cleanup_module } true; [2022-07-22 12:10:17,129 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L898: scull_init_module_#res#1 := scull_init_module_~result~0#1; [2022-07-22 12:10:17,587 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 12:10:17,618 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 12:10:17,618 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 12:10:17,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:10:17 BoogieIcfgContainer [2022-07-22 12:10:17,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 12:10:17,625 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 12:10:17,626 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 12:10:17,631 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 12:10:17,632 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:10:17,632 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 12:10:15" (1/3) ... [2022-07-22 12:10:17,633 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3369f422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 12:10:17, skipping insertion in model container [2022-07-22 12:10:17,634 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:10:17,634 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:16" (2/3) ... [2022-07-22 12:10:17,635 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3369f422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 12:10:17, skipping insertion in model container [2022-07-22 12:10:17,635 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:10:17,635 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:10:17" (3/3) ... [2022-07-22 12:10:17,637 INFO L322 chiAutomizerObserver]: Analyzing ICFG scull.i [2022-07-22 12:10:17,857 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-07-22 12:10:17,924 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 385 places, 394 transitions, 812 flow [2022-07-22 12:10:18,212 INFO L129 PetriNetUnfolder]: 16/388 cut-off events. [2022-07-22 12:10:18,213 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-07-22 12:10:18,229 INFO L84 FinitePrefix]: Finished finitePrefix Result has 401 conditions, 388 events. 16/388 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 862 event pairs, 0 based on Foata normal form. 0/372 useless extension candidates. Maximal degree in co-relation 339. Up to 4 conditions per place. [2022-07-22 12:10:18,229 INFO L82 GeneralOperation]: Start removeDead. Operand has 385 places, 394 transitions, 812 flow [2022-07-22 12:10:18,267 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 382 places, 388 transitions, 794 flow [2022-07-22 12:10:18,272 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-22 12:10:18,293 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 382 places, 388 transitions, 794 flow [2022-07-22 12:10:18,301 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 382 places, 388 transitions, 794 flow [2022-07-22 12:10:18,302 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 382 places, 388 transitions, 794 flow [2022-07-22 12:10:18,441 INFO L129 PetriNetUnfolder]: 16/388 cut-off events. [2022-07-22 12:10:18,442 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-07-22 12:10:18,452 INFO L84 FinitePrefix]: Finished finitePrefix Result has 401 conditions, 388 events. 16/388 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 861 event pairs, 0 based on Foata normal form. 0/372 useless extension candidates. Maximal degree in co-relation 339. Up to 4 conditions per place. [2022-07-22 12:10:18,493 INFO L116 LiptonReduction]: Number of co-enabled transitions 66440 [2022-07-22 12:10:30,773 INFO L131 LiptonReduction]: Checked pairs total: 107595 [2022-07-22 12:10:30,773 INFO L133 LiptonReduction]: Total number of compositions: 420 [2022-07-22 12:10:30,806 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 12:10:30,808 INFO L301 stractBuchiCegarLoop]: Hoare is false [2022-07-22 12:10:30,808 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 12:10:30,808 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 12:10:30,808 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 12:10:30,809 INFO L305 stractBuchiCegarLoop]: Difference is false [2022-07-22 12:10:30,809 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 12:10:30,809 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 12:10:30,811 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-07-22 12:10:31,556 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 12:10:31,556 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-22 12:10:31,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 12:10:31 BoogieIcfgContainer [2022-07-22 12:10:31,563 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 12:10:31,564 INFO L158 Benchmark]: Toolchain (without parser) took 16020.88ms. Allocated memory was 155.2MB in the beginning and 235.9MB in the end (delta: 80.7MB). Free memory was 128.7MB in the beginning and 76.4MB in the end (delta: 52.3MB). Peak memory consumption was 134.1MB. Max. memory is 8.0GB. [2022-07-22 12:10:31,565 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 155.2MB. Free memory is still 125.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-07-22 12:10:31,566 INFO L158 Benchmark]: CACSL2BoogieTranslator took 869.61ms. Allocated memory is still 155.2MB. Free memory was 128.5MB in the beginning and 105.7MB in the end (delta: 22.8MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-07-22 12:10:31,567 INFO L158 Benchmark]: Boogie Procedure Inliner took 167.05ms. Allocated memory is still 155.2MB. Free memory was 105.6MB in the beginning and 134.6MB in the end (delta: -29.0MB). Peak memory consumption was 3.5MB. Max. memory is 8.0GB. [2022-07-22 12:10:31,568 INFO L158 Benchmark]: Boogie Preprocessor took 87.78ms. Allocated memory is still 155.2MB. Free memory was 134.6MB in the beginning and 133.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-07-22 12:10:31,569 INFO L158 Benchmark]: RCFGBuilder took 944.43ms. Allocated memory is still 155.2MB. Free memory was 132.5MB in the beginning and 108.9MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-07-22 12:10:31,569 INFO L158 Benchmark]: BuchiAutomizer took 13937.40ms. Allocated memory was 155.2MB in the beginning and 235.9MB in the end (delta: 80.7MB). Free memory was 108.9MB in the beginning and 76.4MB in the end (delta: 32.5MB). Peak memory consumption was 114.8MB. Max. memory is 8.0GB. [2022-07-22 12:10:31,573 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 155.2MB. Free memory is still 125.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 869.61ms. Allocated memory is still 155.2MB. Free memory was 128.5MB in the beginning and 105.7MB in the end (delta: 22.8MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 167.05ms. Allocated memory is still 155.2MB. Free memory was 105.6MB in the beginning and 134.6MB in the end (delta: -29.0MB). Peak memory consumption was 3.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 87.78ms. Allocated memory is still 155.2MB. Free memory was 134.6MB in the beginning and 133.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 944.43ms. Allocated memory is still 155.2MB. Free memory was 132.5MB in the beginning and 108.9MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * BuchiAutomizer took 13937.40ms. Allocated memory was 155.2MB in the beginning and 235.9MB in the end (delta: 80.7MB). Free memory was 108.9MB in the beginning and 76.4MB in the end (delta: 32.5MB). Peak memory consumption was 114.8MB. 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 13.6s 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: 12.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.5s, 382 PlacesBefore, 64 PlacesAfterwards, 388 TransitionsBefore, 64 TransitionsAfterwards, 66440 CoEnabledTransitionPairs, 13 FixpointIterations, 43 TrivialSequentialCompositions, 295 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 76 ConcurrentYvCompositions, 6 ChoiceCompositions, 420 TotalNumberOfCompositions, 107595 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 69785, positive: 68712, positive conditional: 0, positive unconditional: 68712, negative: 1073, negative conditional: 0, negative unconditional: 1073, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 47797, positive: 47597, positive conditional: 0, positive unconditional: 47597, negative: 200, negative conditional: 0, negative unconditional: 200, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 47797, positive: 47270, positive conditional: 0, positive unconditional: 47270, negative: 527, negative conditional: 0, negative unconditional: 527, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 527, positive: 327, positive conditional: 0, positive unconditional: 327, negative: 200, negative conditional: 0, negative unconditional: 200, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 777, positive: 354, positive conditional: 0, positive unconditional: 354, negative: 423, negative conditional: 0, negative unconditional: 423, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 69785, positive: 21115, positive conditional: 0, positive unconditional: 21115, negative: 873, negative conditional: 0, negative unconditional: 873, unknown: 47797, unknown conditional: 0, unknown unconditional: 47797] , Statistics on independence cache: Total cache size (in pairs): 1326, Positive cache size: 1257, Positive conditional cache size: 0, Positive unconditional cache size: 1257, Negative cache size: 69, Negative conditional cache size: 0, Negative unconditional cache size: 69 RESULT: Ultimate proved your program to be correct! [2022-07-22 12:10:31,608 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...