/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-syntacticLbe.epf -i ../../../trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-21b0908 [2022-07-22 12:34:46,952 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 12:34:46,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 12:34:47,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-07-22 12:34:47,044 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 12:34:47,047 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 12:34:47,048 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 12:34:47,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 12:34:47,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 12:34:47,057 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 12:34:47,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 12:34:47,078 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 12:34:47,081 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 12:34:47,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 12:34:47,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 12:34:47,085 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 12:34:47,087 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 12:34:47,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-07-22 12:34:47,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 12:34:47,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 12:34:47,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 12:34:47,119 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-syntacticLbe.epf [2022-07-22 12:34:47,167 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 12:34:47,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 12:34:47,168 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 12:34:47,168 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 12:34:47,170 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 12:34:47,170 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 12:34:47,170 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 12:34:47,170 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 12:34:47,170 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 12:34:47,171 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 12:34:47,172 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 12:34:47,172 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 12:34:47,172 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 12:34:47,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 12:34:47,173 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 12:34:47,173 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 12:34:47,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 12:34:47,173 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 12:34:47,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 12:34:47,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 12:34:47,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 12:34:47,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 12:34:47,174 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 12:34:47,174 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 12:34:47,174 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 12:34:47,175 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 12:34:47,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 12:34:47,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 12:34:47,175 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 12:34:47,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 12:34:47,176 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 12:34:47,176 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-07-22 12:34:47,178 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 12:34:47,178 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-22 12:34:47,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 12:34:47,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 12:34:47,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 12:34:47,623 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 12:34:47,624 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 12:34:47,625 INFO L432 ainManager$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 12:34:47,702 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88793aae3/0f0bf54366db485295b764884b54af3a/FLAG0c04120fd [2022-07-22 12:34:48,557 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 12:34:48,558 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i [2022-07-22 12:34:48,591 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88793aae3/0f0bf54366db485295b764884b54af3a/FLAG0c04120fd [2022-07-22 12:34:48,700 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88793aae3/0f0bf54366db485295b764884b54af3a [2022-07-22 12:34:48,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 12:34:48,710 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-22 12:34:48,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 12:34:48,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 12:34:48,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 12:34:48,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:34:48" (1/1) ... [2022-07-22 12:34:48,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a446f82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:48, skipping insertion in model container [2022-07-22 12:34:48,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:34:48" (1/1) ... [2022-07-22 12:34:48,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 12:34:48,796 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 12:34:49,978 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 12:34:50,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:34:50,053 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 12:34:50,172 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 12:34:50,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:34:50,391 INFO L208 MainTranslator]: Completed translation [2022-07-22 12:34:50,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:50 WrapperNode [2022-07-22 12:34:50,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 12:34:50,393 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 12:34:50,393 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 12:34:50,394 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 12:34:50,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:50" (1/1) ... [2022-07-22 12:34:50,446 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:50" (1/1) ... [2022-07-22 12:34:50,633 INFO L137 Inliner]: procedures = 397, calls = 214, calls flagged for inlining = 52, calls inlined = 211, statements flattened = 3600 [2022-07-22 12:34:50,634 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 12:34:50,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 12:34:50,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 12:34:50,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 12:34:50,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:50" (1/1) ... [2022-07-22 12:34:50,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:50" (1/1) ... [2022-07-22 12:34:50,678 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:50" (1/1) ... [2022-07-22 12:34:50,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:50" (1/1) ... [2022-07-22 12:34:50,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:50" (1/1) ... [2022-07-22 12:34:50,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:50" (1/1) ... [2022-07-22 12:34:50,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:50" (1/1) ... [2022-07-22 12:34:50,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 12:34:50,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 12:34:50,885 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 12:34:50,885 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 12:34:50,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:50" (1/1) ... [2022-07-22 12:34:50,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:34:50,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:34:50,927 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 12:34:50,932 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 12:34:50,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-22 12:34:50,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 12:34:50,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-22 12:34:50,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 12:34:50,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 12:34:50,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 12:34:50,995 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush2 [2022-07-22 12:34:50,995 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush2 [2022-07-22 12:34:50,995 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush1 [2022-07-22 12:34:50,996 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush1 [2022-07-22 12:34:50,996 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush0 [2022-07-22 12:34:50,996 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush0 [2022-07-22 12:34:50,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 12:34:50,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 12:34:50,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 12:34:50,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 12:34:50,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-22 12:34:50,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 12:34:50,997 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop5 [2022-07-22 12:34:50,997 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop5 [2022-07-22 12:34:50,997 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop6 [2022-07-22 12:34:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop6 [2022-07-22 12:34:50,998 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop3 [2022-07-22 12:34:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop3 [2022-07-22 12:34:50,998 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop4 [2022-07-22 12:34:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop4 [2022-07-22 12:34:50,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 12:34:51,003 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 12:34:51,512 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 12:34:51,514 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 12:34:54,955 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 12:34:58,195 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 12:34:58,196 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 12:34:58,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:34:58 BoogieIcfgContainer [2022-07-22 12:34:58,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 12:34:58,202 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 12:34:58,202 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 12:34:58,206 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 12:34:58,207 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:34:58,208 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 12:34:48" (1/3) ... [2022-07-22 12:34:58,209 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40474cc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 12:34:58, skipping insertion in model container [2022-07-22 12:34:58,209 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:34:58,209 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:50" (2/3) ... [2022-07-22 12:34:58,209 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40474cc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 12:34:58, skipping insertion in model container [2022-07-22 12:34:58,210 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:34:58,210 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:34:58" (3/3) ... [2022-07-22 12:34:58,211 INFO L322 chiAutomizerObserver]: Analyzing ICFG elimination_backoff_stack.i [2022-07-22 12:34:59,113 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-22 12:34:59,179 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 2365 places, 2497 transitions, 5029 flow [2022-07-22 12:35:04,340 INFO L129 PetriNetUnfolder]: 147/2483 cut-off events. [2022-07-22 12:35:04,341 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-22 12:35:04,694 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 12:35:04,695 INFO L82 GeneralOperation]: Start removeDead. Operand has 2365 places, 2497 transitions, 5029 flow [2022-07-22 12:35:05,565 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 2358 places, 2483 transitions, 4987 flow [2022-07-22 12:35:05,570 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-07-22 12:35:05,581 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2358 places, 2483 transitions, 4987 flow [2022-07-22 12:35:05,585 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 2358 places, 2483 transitions, 4987 flow [2022-07-22 12:35:05,586 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 2358 places, 2483 transitions, 4987 flow [2022-07-22 12:35:09,066 INFO L129 PetriNetUnfolder]: 147/2483 cut-off events. [2022-07-22 12:35:09,066 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-22 12:35:09,387 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 12:35:11,267 INFO L116 LiptonReduction]: Number of co-enabled transitions 4952516 [2022-07-22 12:35:47,562 WARN L233 SmtUtils]: Spent 21.06s on a formula simplification. DAG size of input: 340 DAG size of output: 331 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-22 12:35:57,433 WARN L233 SmtUtils]: Spent 9.87s on a formula simplification that was a NOOP. DAG size: 328 (called from [L 315] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-22 12:36:24,338 WARN L233 SmtUtils]: Spent 26.90s on a formula simplification. DAG size of input: 364 DAG size of output: 355 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-22 12:36:36,455 WARN L233 SmtUtils]: Spent 12.11s on a formula simplification that was a NOOP. DAG size: 352 (called from [L 315] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-22 12:36:57,966 WARN L233 SmtUtils]: Spent 21.17s on a formula simplification. DAG size of input: 340 DAG size of output: 331 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-22 12:37:09,348 WARN L233 SmtUtils]: Spent 11.38s on a formula simplification that was a NOOP. DAG size: 328 (called from [L 315] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-22 12:37:36,604 WARN L233 SmtUtils]: Spent 27.25s on a formula simplification. DAG size of input: 364 DAG size of output: 355 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-22 12:37:51,196 WARN L233 SmtUtils]: Spent 14.59s on a formula simplification that was a NOOP. DAG size: 352 (called from [L 315] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-22 12:38:16,569 WARN L233 SmtUtils]: Spent 21.19s on a formula simplification. DAG size of input: 340 DAG size of output: 331 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-22 12:38:27,660 WARN L233 SmtUtils]: Spent 11.08s on a formula simplification that was a NOOP. DAG size: 328 (called from [L 315] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-22 12:38:55,351 WARN L233 SmtUtils]: Spent 27.69s on a formula simplification. DAG size of input: 364 DAG size of output: 355 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-22 12:39:08,499 WARN L233 SmtUtils]: Spent 13.14s on a formula simplification that was a NOOP. DAG size: 352 (called from [L 315] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) Received shutdown request... [2022-07-22 12:39:12,055 WARN L249 SmtUtils]: Removed 2 from assertion stack [2022-07-22 12:39:12,056 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer. Reason: Timeout or Toolchain cancelled by user [2022-07-22 12:39:12,059 INFO L158 Benchmark]: Toolchain (without parser) took 263353.04ms. Allocated memory was 156.2MB in the beginning and 4.7GB in the end (delta: 4.5GB). Free memory was 128.2MB in the beginning and 3.9GB in the end (delta: -3.7GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2022-07-22 12:39:12,059 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 156.2MB. Free memory is still 127.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-07-22 12:39:12,060 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1679.99ms. Allocated memory is still 156.2MB. Free memory was 127.5MB in the beginning and 115.2MB in the end (delta: 12.4MB). Peak memory consumption was 31.4MB. Max. memory is 8.0GB. [2022-07-22 12:39:12,061 INFO L158 Benchmark]: Boogie Procedure Inliner took 240.80ms. Allocated memory is still 156.2MB. Free memory was 115.2MB in the beginning and 97.4MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-07-22 12:39:12,062 INFO L158 Benchmark]: Boogie Preprocessor took 246.97ms. Allocated memory is still 156.2MB. Free memory was 97.4MB in the beginning and 81.0MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-07-22 12:39:12,063 INFO L158 Benchmark]: RCFGBuilder took 7316.78ms. Allocated memory was 156.2MB in the beginning and 434.1MB in the end (delta: 277.9MB). Free memory was 80.6MB in the beginning and 220.8MB in the end (delta: -140.2MB). Peak memory consumption was 220.5MB. Max. memory is 8.0GB. [2022-07-22 12:39:12,064 INFO L158 Benchmark]: BuchiAutomizer took 253854.88ms. Allocated memory was 434.1MB in the beginning and 4.7GB in the end (delta: 4.3GB). Free memory was 220.8MB in the beginning and 3.9GB in the end (delta: -3.6GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2022-07-22 12:39:12,067 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-07-22 12:39:12,069 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 156.2MB. Free memory is still 127.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1679.99ms. Allocated memory is still 156.2MB. Free memory was 127.5MB in the beginning and 115.2MB in the end (delta: 12.4MB). Peak memory consumption was 31.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 240.80ms. Allocated memory is still 156.2MB. Free memory was 115.2MB in the beginning and 97.4MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 246.97ms. Allocated memory is still 156.2MB. Free memory was 97.4MB in the beginning and 81.0MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * RCFGBuilder took 7316.78ms. Allocated memory was 156.2MB in the beginning and 434.1MB in the end (delta: 277.9MB). Free memory was 80.6MB in the beginning and 220.8MB in the end (delta: -140.2MB). Peak memory consumption was 220.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 253854.88ms. Allocated memory was 434.1MB in the beginning and 4.7GB in the end (delta: 4.3GB). Free memory was 220.8MB in the beginning and 3.9GB in the end (delta: -3.6GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer) Toolchain cancelled while BuchiCegarLoopFactory was constructing initial abstraction,while PetriNetLargeBlockEncoding was applying PetriNetLargeBlockEncoding to Petri net that has 2358 places, 2483 transitions, 4987 flow,while LiptonReduction was applying LiptonReduction to Petri net that has 2358 places, 2483 transitions, 4987 flow and 4952516 co-enabled transitions pairs.,while TransFormulaUtils was doing sequential composition of 2 TransFormulas,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 0ms.. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown