/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-complex/elimination_backoff_stack.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-21b0908 [2022-07-22 12:11:09,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 12:11:09,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 12:11:09,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 12:11:09,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 12:11:09,925 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 12:11:09,927 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 12:11:09,929 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 12:11:09,931 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 12:11:09,933 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 12:11:09,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 12:11:09,947 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 12:11:09,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 12:11:09,949 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 12:11:09,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 12:11:09,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 12:11:09,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 12:11:09,954 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 12:11:09,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 12:11:09,959 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 12:11:09,961 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 12:11:09,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 12:11:09,967 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 12:11:09,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 12:11:09,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 12:11:09,985 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-07-22 12:11:09,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 12:11:10,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 12:11:10,004 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 12:11:10,008 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 12:11:10,064 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 12:11:10,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 12:11:10,066 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 12:11:10,066 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 12:11:10,068 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 12:11:10,068 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 12:11:10,069 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 12:11:10,069 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 12:11:10,069 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 12:11:10,070 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 12:11:10,071 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 12:11:10,071 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 12:11:10,071 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 12:11:10,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 12:11:10,071 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 12:11:10,071 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 12:11:10,072 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 12:11:10,072 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 12:11:10,072 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 12:11:10,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 12:11:10,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 12:11:10,073 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 12:11:10,073 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 12:11:10,073 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 12:11:10,073 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 12:11:10,073 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 12:11:10,073 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 12:11:10,074 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 12:11:10,074 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 12:11:10,074 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 12:11:10,074 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 12:11:10,075 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 12:11:10,075 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-22 12:11:10,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 12:11:10,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 12:11:10,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 12:11:10,477 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 12:11:10,477 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 12:11:10,479 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i [2022-07-22 12:11:10,555 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cefa88ef7/d2bbd99019014480b9f077f03742e6e1/FLAG5c3da5e33 [2022-07-22 12:11:11,366 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 12:11:11,367 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i [2022-07-22 12:11:11,407 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cefa88ef7/d2bbd99019014480b9f077f03742e6e1/FLAG5c3da5e33 [2022-07-22 12:11:11,505 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cefa88ef7/d2bbd99019014480b9f077f03742e6e1 [2022-07-22 12:11:11,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 12:11:11,518 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-22 12:11:11,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 12:11:11,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 12:11:11,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 12:11:11,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:11:11" (1/1) ... [2022-07-22 12:11:11,531 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56caa7a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:11:11, skipping insertion in model container [2022-07-22 12:11:11,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:11:11" (1/1) ... [2022-07-22 12:11:11,541 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 12:11:11,637 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 12:11:12,593 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-complex/elimination_backoff_stack.i[63494,63507] [2022-07-22 12:11:12,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:11:12,642 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 12:11:12,735 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-complex/elimination_backoff_stack.i[63494,63507] [2022-07-22 12:11:12,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:11:12,906 INFO L208 MainTranslator]: Completed translation [2022-07-22 12:11:12,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:11:12 WrapperNode [2022-07-22 12:11:12,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 12:11:12,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 12:11:12,909 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 12:11:12,909 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 12:11:12,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:11:12" (1/1) ... [2022-07-22 12:11:12,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:11:12" (1/1) ... [2022-07-22 12:11:13,159 INFO L137 Inliner]: procedures = 397, calls = 214, calls flagged for inlining = 52, calls inlined = 211, statements flattened = 3600 [2022-07-22 12:11:13,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 12:11:13,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 12:11:13,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 12:11:13,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 12:11:13,171 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:11:12" (1/1) ... [2022-07-22 12:11:13,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:11:12" (1/1) ... [2022-07-22 12:11:13,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:11:12" (1/1) ... [2022-07-22 12:11:13,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:11:12" (1/1) ... [2022-07-22 12:11:13,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:11:12" (1/1) ... [2022-07-22 12:11:13,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:11:12" (1/1) ... [2022-07-22 12:11:13,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:11:12" (1/1) ... [2022-07-22 12:11:13,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 12:11:13,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 12:11:13,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 12:11:13,400 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 12:11:13,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:11:12" (1/1) ... [2022-07-22 12:11:13,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:11:13,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:11:13,443 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 12:11:13,456 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 12:11:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-22 12:11:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 12:11:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-22 12:11:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 12:11:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 12:11:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 12:11:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush2 [2022-07-22 12:11:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush2 [2022-07-22 12:11:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush1 [2022-07-22 12:11:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush1 [2022-07-22 12:11:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush0 [2022-07-22 12:11:13,508 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush0 [2022-07-22 12:11:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 12:11:13,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 12:11:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 12:11:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 12:11:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-22 12:11:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 12:11:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop5 [2022-07-22 12:11:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop5 [2022-07-22 12:11:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop6 [2022-07-22 12:11:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop6 [2022-07-22 12:11:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop3 [2022-07-22 12:11:13,510 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop3 [2022-07-22 12:11:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop4 [2022-07-22 12:11:13,510 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop4 [2022-07-22 12:11:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 12:11:13,514 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 12:11:13,959 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 12:11:13,961 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 12:11:17,473 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 12:11:20,796 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 12:11:20,796 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 12:11:20,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:11:20 BoogieIcfgContainer [2022-07-22 12:11:20,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 12:11:20,804 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 12:11:20,804 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 12:11:20,808 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 12:11:20,809 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:11:20,809 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 12:11:11" (1/3) ... [2022-07-22 12:11:20,811 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14b82ee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 12:11:20, skipping insertion in model container [2022-07-22 12:11:20,811 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:11:20,811 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:11:12" (2/3) ... [2022-07-22 12:11:20,811 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14b82ee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 12:11:20, skipping insertion in model container [2022-07-22 12:11:20,811 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:11:20,812 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:11:20" (3/3) ... [2022-07-22 12:11:20,813 INFO L322 chiAutomizerObserver]: Analyzing ICFG elimination_backoff_stack.i [2022-07-22 12:11:21,614 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-22 12:11:21,680 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 2365 places, 2497 transitions, 5029 flow [2022-07-22 12:11:26,634 INFO L129 PetriNetUnfolder]: 147/2483 cut-off events. [2022-07-22 12:11:26,634 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-22 12:11:27,089 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2505 conditions, 2483 events. 147/2483 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 16736 event pairs, 0 based on Foata normal form. 0/2336 useless extension candidates. Maximal degree in co-relation 2428. Up to 6 conditions per place. [2022-07-22 12:11:27,089 INFO L82 GeneralOperation]: Start removeDead. Operand has 2365 places, 2497 transitions, 5029 flow [2022-07-22 12:11:27,808 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 2358 places, 2483 transitions, 4987 flow [2022-07-22 12:11:27,813 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-22 12:11:27,829 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2358 places, 2483 transitions, 4987 flow [2022-07-22 12:11:27,833 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 2358 places, 2483 transitions, 4987 flow [2022-07-22 12:11:27,833 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 2358 places, 2483 transitions, 4987 flow [2022-07-22 12:11:32,160 INFO L129 PetriNetUnfolder]: 147/2483 cut-off events. [2022-07-22 12:11:32,160 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-22 12:11:32,437 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2505 conditions, 2483 events. 147/2483 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 16708 event pairs, 0 based on Foata normal form. 0/2336 useless extension candidates. Maximal degree in co-relation 2428. Up to 6 conditions per place. [2022-07-22 12:11:34,060 INFO L116 LiptonReduction]: Number of co-enabled transitions 4952516 [2022-07-22 12:11:47,498 WARN L230 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-07-22 12:11:47,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 101 [2022-07-22 12:11:47,500 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.checkImplication(TransFormulaUtils.java:1152) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.SemanticIndependenceRelation.performInclusionCheck(SemanticIndependenceRelation.java:197) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.SemanticIndependenceRelation.containsLBool(SemanticIndependenceRelation.java:145) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.SemanticIndependenceRelation.contains(SemanticIndependenceRelation.java:123) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.SemanticIndependenceRelation.contains(SemanticIndependenceRelation.java:1) at de.uni_freiburg.informatik.ultimate.automata.partialorder.UnionIndependenceRelation.lambda$2(UnionIndependenceRelation.java:70) at java.base/java.util.stream.MatchOps$1MatchSink.accept(MatchOps.java:90) at java.base/java.util.Spliterators$ArraySpliterator.tryAdvance(Spliterators.java:958) at java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:127) at java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:502) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:488) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:230) at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:196) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.anyMatch(ReferencePipeline.java:528) at de.uni_freiburg.informatik.ultimate.automata.partialorder.UnionIndependenceRelation.contains(UnionIndependenceRelation.java:70) at de.uni_freiburg.informatik.ultimate.automata.partialorder.CachedIndependenceRelation.contains(CachedIndependenceRelation.java:120) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.lambda$1(LiptonReduction.java:465) at java.base/java.util.stream.MatchOps$1MatchSink.accept(MatchOps.java:90) at java.base/java.util.HashMap$KeySpliterator.tryAdvance(HashMap.java:1642) at java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:127) at java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:502) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:488) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:230) at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:196) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.allMatch(ReferencePipeline.java:533) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.isRightMover(LiptonReduction.java:465) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.sequenceRuleCheck(LiptonReduction.java:408) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.sequenceRule(LiptonReduction.java:310) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.(LiptonReduction.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.petrinetlbe.PetriNetLargeBlockEncoding.(PetriNetLargeBlockEncoding.java:133) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriLbeInitialAbstractionProvider.getInitialAbstraction(PetriLbeInitialAbstractionProvider.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriLbeInitialAbstractionProvider.getInitialAbstraction(PetriLbeInitialAbstractionProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.Petri2FiniteAutomatonAbstractionProvider$Lazy.getInitialAbstraction(Petri2FiniteAutomatonAbstractionProvider.java:196) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.Petri2FiniteAutomatonAbstractionProvider$Lazy.getInitialAbstraction(Petri2FiniteAutomatonAbstractionProvider.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.BuchiCegarLoopFactory.constructInitialAbstraction(BuchiCegarLoopFactory.java:187) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.BuchiCegarLoopFactory.createBuchiAutomatonCegarLoop(BuchiCegarLoopFactory.java:153) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.BuchiCegarLoopFactory.constructCegarLoop(BuchiCegarLoopFactory.java:121) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.runCegarLoops(BuchiAutomizerObserver.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:331) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 59 more [2022-07-22 12:11:47,507 INFO L158 Benchmark]: Toolchain (without parser) took 35991.19ms. Allocated memory was 151.0MB in the beginning and 4.6GB in the end (delta: 4.5GB). Free memory was 121.7MB in the beginning and 3.8GB in the end (delta: -3.7GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2022-07-22 12:11:47,508 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 151.0MB. Free memory is still 121.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-07-22 12:11:47,508 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1386.01ms. Allocated memory is still 151.0MB. Free memory was 121.5MB in the beginning and 107.7MB in the end (delta: 13.8MB). Peak memory consumption was 33.3MB. Max. memory is 8.0GB. [2022-07-22 12:11:47,509 INFO L158 Benchmark]: Boogie Procedure Inliner took 251.72ms. Allocated memory is still 151.0MB. Free memory was 107.7MB in the beginning and 89.9MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-07-22 12:11:47,510 INFO L158 Benchmark]: Boogie Preprocessor took 233.46ms. Allocated memory is still 151.0MB. Free memory was 89.9MB in the beginning and 73.6MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-07-22 12:11:47,511 INFO L158 Benchmark]: RCFGBuilder took 7403.12ms. Allocated memory was 151.0MB in the beginning and 433.1MB in the end (delta: 282.1MB). Free memory was 73.6MB in the beginning and 320.3MB in the end (delta: -246.7MB). Peak memory consumption was 206.3MB. Max. memory is 8.0GB. [2022-07-22 12:11:47,512 INFO L158 Benchmark]: BuchiAutomizer took 26699.60ms. Allocated memory was 433.1MB in the beginning and 4.6GB in the end (delta: 4.2GB). Free memory was 319.8MB in the beginning and 3.8GB in the end (delta: -3.5GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2022-07-22 12:11:47,517 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 151.0MB. Free memory is still 121.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1386.01ms. Allocated memory is still 151.0MB. Free memory was 121.5MB in the beginning and 107.7MB in the end (delta: 13.8MB). Peak memory consumption was 33.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 251.72ms. Allocated memory is still 151.0MB. Free memory was 107.7MB in the beginning and 89.9MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 233.46ms. Allocated memory is still 151.0MB. Free memory was 89.9MB in the beginning and 73.6MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * RCFGBuilder took 7403.12ms. Allocated memory was 151.0MB in the beginning and 433.1MB in the end (delta: 282.1MB). Free memory was 73.6MB in the beginning and 320.3MB in the end (delta: -246.7MB). Peak memory consumption was 206.3MB. Max. memory is 8.0GB. * BuchiAutomizer took 26699.60ms. Allocated memory was 433.1MB in the beginning and 4.6GB in the end (delta: 4.2GB). Free memory was 319.8MB in the beginning and 3.8GB in the end (delta: -3.5GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...