/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-0d686a6 [2022-07-26 14:03:54,372 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-26 14:03:54,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-26 14:03:54,436 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-26 14:03:54,437 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-26 14:03:54,438 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-26 14:03:54,443 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-26 14:03:54,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-26 14:03:54,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-26 14:03:54,450 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-26 14:03:54,450 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-26 14:03:54,451 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-26 14:03:54,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-26 14:03:54,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-26 14:03:54,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-26 14:03:54,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-26 14:03:54,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-26 14:03:54,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-26 14:03:54,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-26 14:03:54,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-26 14:03:54,463 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-26 14:03:54,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-26 14:03:54,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-26 14:03:54,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-26 14:03:54,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-26 14:03:54,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-07-26 14:03:54,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-26 14:03:54,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-26 14:03:54,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-26 14:03:54,492 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-syntacticLbe.epf [2022-07-26 14:03:54,526 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-26 14:03:54,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-26 14:03:54,527 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-26 14:03:54,527 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-26 14:03:54,528 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-26 14:03:54,528 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-26 14:03:54,528 INFO L138 SettingsManager]: * Use SBE=true [2022-07-26 14:03:54,528 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-26 14:03:54,528 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-26 14:03:54,529 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-26 14:03:54,529 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-26 14:03:54,530 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-26 14:03:54,530 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-26 14:03:54,530 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-26 14:03:54,530 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-26 14:03:54,530 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-26 14:03:54,530 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-26 14:03:54,530 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-26 14:03:54,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-26 14:03:54,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-26 14:03:54,531 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-26 14:03:54,531 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-26 14:03:54,531 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-26 14:03:54,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-26 14:03:54,531 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-26 14:03:54,531 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-26 14:03:54,531 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-26 14:03:54,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-26 14:03:54,532 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-26 14:03:54,532 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-26 14:03:54,532 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-26 14:03:54,532 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-07-26 14:03:54,533 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-26 14:03:54,533 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-26 14:03:54,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-26 14:03:54,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-26 14:03:54,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-26 14:03:54,750 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-26 14:03:54,751 INFO L275 PluginConnector]: CDTParser initialized [2022-07-26 14:03:54,752 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i [2022-07-26 14:03:54,811 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ec924f9e/ad093f7f9bb841889674d60a43f47c69/FLAGb317db405 [2022-07-26 14:03:55,286 INFO L306 CDTParser]: Found 1 translation units. [2022-07-26 14:03:55,286 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i [2022-07-26 14:03:55,314 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ec924f9e/ad093f7f9bb841889674d60a43f47c69/FLAGb317db405 [2022-07-26 14:03:55,787 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ec924f9e/ad093f7f9bb841889674d60a43f47c69 [2022-07-26 14:03:55,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-26 14:03:55,791 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-26 14:03:55,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-26 14:03:55,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-26 14:03:55,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-26 14:03:55,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.07 02:03:55" (1/1) ... [2022-07-26 14:03:55,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15db029d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:03:55, skipping insertion in model container [2022-07-26 14:03:55,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.07 02:03:55" (1/1) ... [2022-07-26 14:03:55,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-26 14:03:55,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-26 14:03:56,507 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] [2022-07-26 14:03:56,532 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-26 14:03:56,549 INFO L203 MainTranslator]: Completed pre-run [2022-07-26 14:03:56,613 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] [2022-07-26 14:03:56,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-26 14:03:56,686 INFO L208 MainTranslator]: Completed translation [2022-07-26 14:03:56,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:03:56 WrapperNode [2022-07-26 14:03:56,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-26 14:03:56,688 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-26 14:03:56,688 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-26 14:03:56,688 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-26 14:03:56,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:03:56" (1/1) ... [2022-07-26 14:03:56,731 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:03:56" (1/1) ... [2022-07-26 14:03:56,829 INFO L137 Inliner]: procedures = 397, calls = 214, calls flagged for inlining = 52, calls inlined = 211, statements flattened = 3600 [2022-07-26 14:03:56,829 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-26 14:03:56,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-26 14:03:56,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-26 14:03:56,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-26 14:03:56,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:03:56" (1/1) ... [2022-07-26 14:03:56,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:03:56" (1/1) ... [2022-07-26 14:03:56,880 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:03:56" (1/1) ... [2022-07-26 14:03:56,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:03:56" (1/1) ... [2022-07-26 14:03:56,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:03:56" (1/1) ... [2022-07-26 14:03:56,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:03:56" (1/1) ... [2022-07-26 14:03:57,003 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:03:56" (1/1) ... [2022-07-26 14:03:57,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-26 14:03:57,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-26 14:03:57,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-26 14:03:57,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-26 14:03:57,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:03:56" (1/1) ... [2022-07-26 14:03:57,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 14:03:57,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 14:03:57,094 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) [2022-07-26 14:03:57,120 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 [2022-07-26 14:03:57,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-26 14:03:57,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-26 14:03:57,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-26 14:03:57,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-26 14:03:57,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-26 14:03:57,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-26 14:03:57,141 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush2 [2022-07-26 14:03:57,141 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush2 [2022-07-26 14:03:57,141 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush1 [2022-07-26 14:03:57,141 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush1 [2022-07-26 14:03:57,141 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush0 [2022-07-26 14:03:57,141 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush0 [2022-07-26 14:03:57,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-26 14:03:57,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-26 14:03:57,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-26 14:03:57,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-26 14:03:57,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-26 14:03:57,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-26 14:03:57,142 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop5 [2022-07-26 14:03:57,142 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop5 [2022-07-26 14:03:57,142 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop6 [2022-07-26 14:03:57,142 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop6 [2022-07-26 14:03:57,142 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop3 [2022-07-26 14:03:57,142 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop3 [2022-07-26 14:03:57,143 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop4 [2022-07-26 14:03:57,143 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop4 [2022-07-26 14:03:57,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-26 14:03:57,147 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-26 14:03:57,529 INFO L234 CfgBuilder]: Building ICFG [2022-07-26 14:03:57,531 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-26 14:04:00,718 INFO L275 CfgBuilder]: Performing block encoding [2022-07-26 14:04:03,034 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-26 14:04:03,035 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-26 14:04:03,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.07 02:04:03 BoogieIcfgContainer [2022-07-26 14:04:03,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-26 14:04:03,043 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-26 14:04:03,044 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-26 14:04:03,047 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-26 14:04:03,048 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 14:04:03,048 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.07 02:03:55" (1/3) ... [2022-07-26 14:04:03,050 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ac9d07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.07 02:04:03, skipping insertion in model container [2022-07-26 14:04:03,050 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 14:04:03,050 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:03:56" (2/3) ... [2022-07-26 14:04:03,050 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ac9d07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.07 02:04:03, skipping insertion in model container [2022-07-26 14:04:03,050 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 14:04:03,050 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.07 02:04:03" (3/3) ... [2022-07-26 14:04:03,052 INFO L322 chiAutomizerObserver]: Analyzing ICFG elimination_backoff_stack.i [2022-07-26 14:04:03,755 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-26 14:04:03,802 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 2365 places, 2497 transitions, 5029 flow [2022-07-26 14:04:06,639 INFO L129 PetriNetUnfolder]: 147/2483 cut-off events. [2022-07-26 14:04:06,640 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-26 14:04:06,860 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. [2022-07-26 14:04:06,861 INFO L82 GeneralOperation]: Start removeDead. Operand has 2365 places, 2497 transitions, 5029 flow [2022-07-26 14:04:07,401 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 2358 places, 2483 transitions, 4987 flow [2022-07-26 14:04:07,405 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-07-26 14:04:07,415 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2358 places, 2483 transitions, 4987 flow [2022-07-26 14:04:07,418 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 2358 places, 2483 transitions, 4987 flow [2022-07-26 14:04:07,418 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 2358 places, 2483 transitions, 4987 flow [2022-07-26 14:04:09,627 INFO L129 PetriNetUnfolder]: 147/2483 cut-off events. [2022-07-26 14:04:09,628 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-26 14:04:09,857 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. [2022-07-26 14:04:11,439 INFO L116 LiptonReduction]: Number of co-enabled transitions 4952516 [2022-07-26 14:04:37,424 WARN L233 SmtUtils]: Spent 14.65s on a formula simplification. DAG size of input: 340 DAG size of output: 331 (called from [L 277] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-26 14:04:44,312 WARN L233 SmtUtils]: Spent 6.89s on a formula simplification that was a NOOP. DAG size: 328 (called from [L 314] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-26 14:05:03,008 WARN L233 SmtUtils]: Spent 18.69s on a formula simplification. DAG size of input: 364 DAG size of output: 355 (called from [L 277] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-26 14:05:11,592 WARN L233 SmtUtils]: Spent 8.58s on a formula simplification that was a NOOP. DAG size: 352 (called from [L 314] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-26 14:05:26,681 WARN L233 SmtUtils]: Spent 14.88s on a formula simplification. DAG size of input: 340 DAG size of output: 331 (called from [L 277] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-26 14:05:34,792 WARN L233 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 328 (called from [L 314] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-26 14:05:53,613 WARN L233 SmtUtils]: Spent 18.82s on a formula simplification. DAG size of input: 364 DAG size of output: 355 (called from [L 277] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-26 14:06:03,343 WARN L233 SmtUtils]: Spent 9.73s on a formula simplification that was a NOOP. DAG size: 352 (called from [L 314] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-26 14:06:20,587 WARN L233 SmtUtils]: Spent 14.43s on a formula simplification. DAG size of input: 340 DAG size of output: 331 (called from [L 277] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-26 14:06:28,367 WARN L233 SmtUtils]: Spent 7.78s on a formula simplification that was a NOOP. DAG size: 328 (called from [L 314] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-26 14:06:47,297 WARN L233 SmtUtils]: Spent 18.93s on a formula simplification. DAG size of input: 364 DAG size of output: 355 (called from [L 277] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-26 14:06:56,269 WARN L233 SmtUtils]: Spent 8.97s on a formula simplification that was a NOOP. DAG size: 352 (called from [L 314] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-26 14:07:13,212 WARN L233 SmtUtils]: Spent 14.48s on a formula simplification. DAG size of input: 341 DAG size of output: 332 (called from [L 277] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-26 14:07:21,102 WARN L233 SmtUtils]: Spent 7.89s on a formula simplification that was a NOOP. DAG size: 332 (called from [L 314] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-26 14:07:40,478 WARN L233 SmtUtils]: Spent 19.37s on a formula simplification. DAG size of input: 365 DAG size of output: 356 (called from [L 277] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-26 14:07:49,657 WARN L233 SmtUtils]: Spent 9.18s on a formula simplification that was a NOOP. DAG size: 356 (called from [L 314] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-26 14:08:06,095 WARN L233 SmtUtils]: Spent 15.64s on a formula simplification. DAG size of input: 341 DAG size of output: 332 (called from [L 277] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-26 14:08:13,932 WARN L233 SmtUtils]: Spent 7.84s on a formula simplification that was a NOOP. DAG size: 332 (called from [L 314] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) Received shutdown request... [2022-07-26 14:08:27,111 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 [2022-07-26 14:08:27,169 WARN L249 SmtUtils]: Removed 22 from assertion stack [2022-07-26 14:08:27,170 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer. Reason: Timeout or Toolchain cancelled by user [2022-07-26 14:08:27,172 INFO L158 Benchmark]: Toolchain (without parser) took 271381.05ms. Allocated memory was 176.2MB in the beginning and 3.8GB in the end (delta: 3.6GB). Free memory was 122.5MB in the beginning and 2.6GB in the end (delta: -2.5GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. [2022-07-26 14:08:27,172 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 176.2MB. Free memory was 142.5MB in the beginning and 142.4MB in the end (delta: 136.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-07-26 14:08:27,173 INFO L158 Benchmark]: CACSL2BoogieTranslator took 895.09ms. Allocated memory is still 176.2MB. Free memory was 122.4MB in the beginning and 116.5MB in the end (delta: 5.9MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. [2022-07-26 14:08:27,173 INFO L158 Benchmark]: Boogie Procedure Inliner took 141.33ms. Allocated memory is still 176.2MB. Free memory was 116.5MB in the beginning and 98.6MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-07-26 14:08:27,174 INFO L158 Benchmark]: Boogie Preprocessor took 189.59ms. Allocated memory is still 176.2MB. Free memory was 98.6MB in the beginning and 81.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-07-26 14:08:27,175 INFO L158 Benchmark]: RCFGBuilder took 5984.53ms. Allocated memory was 213.9MB in the beginning and 472.9MB in the end (delta: 259.0MB). Free memory was 180.9MB in the beginning and 170.4MB in the end (delta: 10.5MB). Peak memory consumption was 276.8MB. Max. memory is 8.0GB. [2022-07-26 14:08:27,175 INFO L158 Benchmark]: BuchiAutomizer took 264127.50ms. Allocated memory was 472.9MB in the beginning and 3.8GB in the end (delta: 3.3GB). Free memory was 170.4MB in the beginning and 2.6GB in the end (delta: -2.4GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2022-07-26 14:08:27,178 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 176.2MB. Free memory was 142.5MB in the beginning and 142.4MB in the end (delta: 136.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 895.09ms. Allocated memory is still 176.2MB. Free memory was 122.4MB in the beginning and 116.5MB in the end (delta: 5.9MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 141.33ms. Allocated memory is still 176.2MB. Free memory was 116.5MB in the beginning and 98.6MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 189.59ms. Allocated memory is still 176.2MB. Free memory was 98.6MB in the beginning and 81.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * RCFGBuilder took 5984.53ms. Allocated memory was 213.9MB in the beginning and 472.9MB in the end (delta: 259.0MB). Free memory was 180.9MB in the beginning and 170.4MB in the end (delta: 10.5MB). Peak memory consumption was 276.8MB. Max. memory is 8.0GB. * BuchiAutomizer took 264127.50ms. Allocated memory was 472.9MB in the beginning and 3.8GB in the end (delta: 3.3GB). Free memory was 170.4MB in the beginning and 2.6GB in the end (delta: -2.4GB). Peak memory consumption was 1.8GB. 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 365 for 13227ms.. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown