/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/peterson.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 06:15:56,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 06:15:56,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 06:15:56,733 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 06:15:56,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 06:15:56,735 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 06:15:56,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 06:15:56,741 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 06:15:56,742 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 06:15:56,743 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 06:15:56,744 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 06:15:56,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 06:15:56,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 06:15:56,748 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 06:15:56,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 06:15:56,752 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 06:15:56,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 06:15:56,754 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 06:15:56,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 06:15:56,759 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 06:15:56,761 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 06:15:56,762 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 06:15:56,762 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 06:15:56,763 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 06:15:56,767 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 06:15:56,768 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 06:15:56,768 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 06:15:56,768 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 06:15:56,769 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 06:15:56,769 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 06:15:56,769 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 06:15:56,770 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 06:15:56,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 06:15:56,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 06:15:56,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 06:15:56,771 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 06:15:56,772 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 06:15:56,772 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 06:15:56,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 06:15:56,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 06:15:56,773 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 06:15:56,775 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2022-12-06 06:15:56,798 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 06:15:56,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 06:15:56,799 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 06:15:56,799 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 06:15:56,799 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 06:15:56,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 06:15:56,800 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 06:15:56,800 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 06:15:56,800 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 06:15:56,800 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 06:15:56,801 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 06:15:56,801 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 06:15:56,801 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 06:15:56,801 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 06:15:56,801 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 06:15:56,801 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 06:15:56,801 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 06:15:56,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 06:15:56,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 06:15:56,802 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 06:15:56,802 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 06:15:56,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 06:15:56,802 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 06:15:56,802 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 06:15:56,802 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 06:15:56,802 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 06:15:56,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 06:15:56,802 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 06:15:56,802 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 06:15:57,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 06:15:57,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 06:15:57,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 06:15:57,115 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 06:15:57,115 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 06:15:57,116 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/peterson.i [2022-12-06 06:15:58,088 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 06:15:58,304 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 06:15:58,305 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i [2022-12-06 06:15:58,313 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a46025a6/ff241782bb8f40c9bcebd55d4f8749d0/FLAGbd125cd0a [2022-12-06 06:15:58,324 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a46025a6/ff241782bb8f40c9bcebd55d4f8749d0 [2022-12-06 06:15:58,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 06:15:58,326 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 06:15:58,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 06:15:58,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 06:15:58,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 06:15:58,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:15:58" (1/1) ... [2022-12-06 06:15:58,330 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76d729fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:15:58, skipping insertion in model container [2022-12-06 06:15:58,330 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:15:58" (1/1) ... [2022-12-06 06:15:58,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 06:15:58,358 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 06:15:58,486 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-06 06:15:58,593 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:15:58,594 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:15:58,594 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:15:58,594 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:15:58,595 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:15:58,595 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:15:58,596 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:15:58,596 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:15:58,596 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:15:58,597 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:15:58,597 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:15:58,597 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:15:58,599 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i[30997,31010] [2022-12-06 06:15:58,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:15:58,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:15:58,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:15:58,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:15:58,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:15:58,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:15:58,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:15:58,615 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:15:58,615 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:15:58,615 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:15:58,616 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:15:58,616 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:15:58,616 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:15:58,616 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:15:58,617 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i[31682,31695] [2022-12-06 06:15:58,617 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:15:58,617 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:15:58,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 06:15:58,627 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 06:15:58,643 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-06 06:15:58,659 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:15:58,659 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:15:58,659 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:15:58,659 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:15:58,659 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:15:58,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:15:58,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:15:58,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:15:58,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:15:58,661 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:15:58,661 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:15:58,661 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:15:58,661 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i[30997,31010] [2022-12-06 06:15:58,661 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:15:58,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:15:58,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:15:58,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:15:58,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:15:58,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:15:58,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:15:58,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:15:58,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:15:58,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:15:58,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:15:58,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:15:58,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:15:58,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:15:58,667 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i[31682,31695] [2022-12-06 06:15:58,667 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:15:58,667 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:15:58,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 06:15:58,703 INFO L208 MainTranslator]: Completed translation [2022-12-06 06:15:58,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:15:58 WrapperNode [2022-12-06 06:15:58,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 06:15:58,705 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 06:15:58,705 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 06:15:58,705 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 06:15:58,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:15:58" (1/1) ... [2022-12-06 06:15:58,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:15:58" (1/1) ... [2022-12-06 06:15:58,737 INFO L138 Inliner]: procedures = 171, calls = 47, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2022-12-06 06:15:58,738 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 06:15:58,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 06:15:58,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 06:15:58,739 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 06:15:58,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:15:58" (1/1) ... [2022-12-06 06:15:58,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:15:58" (1/1) ... [2022-12-06 06:15:58,754 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:15:58" (1/1) ... [2022-12-06 06:15:58,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:15:58" (1/1) ... [2022-12-06 06:15:58,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:15:58" (1/1) ... [2022-12-06 06:15:58,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:15:58" (1/1) ... [2022-12-06 06:15:58,761 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:15:58" (1/1) ... [2022-12-06 06:15:58,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:15:58" (1/1) ... [2022-12-06 06:15:58,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 06:15:58,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 06:15:58,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 06:15:58,763 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 06:15:58,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:15:58" (1/1) ... [2022-12-06 06:15:58,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 06:15:58,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 06:15:58,808 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 06:15:58,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 06:15:58,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 06:15:58,838 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-12-06 06:15:58,838 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-12-06 06:15:58,838 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-12-06 06:15:58,838 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-12-06 06:15:58,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 06:15:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 06:15:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 06:15:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 06:15:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 06:15:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 06:15:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 06:15:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 06:15:58,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 06:15:58,840 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 06:15:58,942 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 06:15:58,944 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 06:15:59,125 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 06:15:59,129 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 06:15:59,129 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-06 06:15:59,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:15:59 BoogieIcfgContainer [2022-12-06 06:15:59,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 06:15:59,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 06:15:59,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 06:15:59,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 06:15:59,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:15:58" (1/3) ... [2022-12-06 06:15:59,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@449e6774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:15:59, skipping insertion in model container [2022-12-06 06:15:59,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:15:58" (2/3) ... [2022-12-06 06:15:59,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@449e6774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:15:59, skipping insertion in model container [2022-12-06 06:15:59,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:15:59" (3/3) ... [2022-12-06 06:15:59,143 INFO L112 eAbstractionObserver]: Analyzing ICFG peterson.i [2022-12-06 06:15:59,156 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 06:15:59,156 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-06 06:15:59,156 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 06:15:59,232 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 06:15:59,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 78 transitions, 172 flow [2022-12-06 06:15:59,307 INFO L130 PetriNetUnfolder]: 6/76 cut-off events. [2022-12-06 06:15:59,307 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 06:15:59,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 76 events. 6/76 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 75 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2022-12-06 06:15:59,311 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 78 transitions, 172 flow [2022-12-06 06:15:59,315 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 67 transitions, 143 flow [2022-12-06 06:15:59,317 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:15:59,338 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 67 transitions, 143 flow [2022-12-06 06:15:59,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 67 transitions, 143 flow [2022-12-06 06:15:59,362 INFO L130 PetriNetUnfolder]: 6/67 cut-off events. [2022-12-06 06:15:59,362 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 06:15:59,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 67 events. 6/67 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 75 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2022-12-06 06:15:59,365 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 67 transitions, 143 flow [2022-12-06 06:15:59,365 INFO L188 LiptonReduction]: Number of co-enabled transitions 1188 [2022-12-06 06:16:00,862 INFO L203 LiptonReduction]: Total number of compositions: 43 [2022-12-06 06:16:00,876 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 06:16:00,881 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@637c9299, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 06:16:00,881 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-06 06:16:00,885 INFO L130 PetriNetUnfolder]: 2/18 cut-off events. [2022-12-06 06:16:00,886 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 06:16:00,886 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:16:00,887 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:16:00,887 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 06:16:00,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:16:00,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1997405725, now seen corresponding path program 1 times [2022-12-06 06:16:00,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:16:00,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605419651] [2022-12-06 06:16:00,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:16:00,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:16:00,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:16:01,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 06:16:01,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:16:01,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605419651] [2022-12-06 06:16:01,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605419651] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:16:01,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:16:01,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 06:16:01,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625167871] [2022-12-06 06:16:01,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:16:01,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 06:16:01,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:16:01,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 06:16:01,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 06:16:01,078 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2022-12-06 06:16:01,079 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 29 transitions, 67 flow. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:16:01,079 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:16:01,079 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2022-12-06 06:16:01,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:16:01,164 INFO L130 PetriNetUnfolder]: 155/342 cut-off events. [2022-12-06 06:16:01,165 INFO L131 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2022-12-06 06:16:01,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 665 conditions, 342 events. 155/342 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1695 event pairs, 67 based on Foata normal form. 16/291 useless extension candidates. Maximal degree in co-relation 568. Up to 166 conditions per place. [2022-12-06 06:16:01,171 INFO L137 encePairwiseOnDemand]: 21/29 looper letters, 23 selfloop transitions, 5 changer transitions 1/37 dead transitions. [2022-12-06 06:16:01,171 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 37 transitions, 144 flow [2022-12-06 06:16:01,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 06:16:01,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 06:16:01,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2022-12-06 06:16:01,179 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6551724137931034 [2022-12-06 06:16:01,180 INFO L175 Difference]: Start difference. First operand has 32 places, 29 transitions, 67 flow. Second operand 3 states and 57 transitions. [2022-12-06 06:16:01,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 37 transitions, 144 flow [2022-12-06 06:16:01,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 37 transitions, 137 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-06 06:16:01,186 INFO L231 Difference]: Finished difference. Result has 33 places, 29 transitions, 88 flow [2022-12-06 06:16:01,188 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=33, PETRI_TRANSITIONS=29} [2022-12-06 06:16:01,192 INFO L294 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2022-12-06 06:16:01,192 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 06:16:01,193 INFO L89 Accepts]: Start accepts. Operand has 33 places, 29 transitions, 88 flow [2022-12-06 06:16:01,194 INFO L95 Accepts]: Finished accepts. [2022-12-06 06:16:01,195 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:16:01,195 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 29 transitions, 88 flow [2022-12-06 06:16:01,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 29 transitions, 88 flow [2022-12-06 06:16:01,207 INFO L130 PetriNetUnfolder]: 2/46 cut-off events. [2022-12-06 06:16:01,207 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 06:16:01,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 46 events. 2/46 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 156 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 66. Up to 9 conditions per place. [2022-12-06 06:16:01,208 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 29 transitions, 88 flow [2022-12-06 06:16:01,208 INFO L188 LiptonReduction]: Number of co-enabled transitions 296 [2022-12-06 06:16:01,237 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 06:16:01,239 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 47 [2022-12-06 06:16:01,241 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 29 transitions, 88 flow [2022-12-06 06:16:01,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:16:01,241 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:16:01,241 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:16:01,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 06:16:01,242 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 06:16:01,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:16:01,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1440030316, now seen corresponding path program 1 times [2022-12-06 06:16:01,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:16:01,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789374250] [2022-12-06 06:16:01,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:16:01,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:16:01,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:16:01,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 06:16:01,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:16:01,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789374250] [2022-12-06 06:16:01,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789374250] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:16:01,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:16:01,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 06:16:01,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894600217] [2022-12-06 06:16:01,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:16:01,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 06:16:01,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:16:01,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 06:16:01,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 06:16:01,326 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2022-12-06 06:16:01,326 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 29 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:16:01,326 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:16:01,326 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2022-12-06 06:16:01,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:16:01,396 INFO L130 PetriNetUnfolder]: 134/305 cut-off events. [2022-12-06 06:16:01,396 INFO L131 PetriNetUnfolder]: For 62/62 co-relation queries the response was YES. [2022-12-06 06:16:01,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 683 conditions, 305 events. 134/305 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1472 event pairs, 69 based on Foata normal form. 16/279 useless extension candidates. Maximal degree in co-relation 287. Up to 163 conditions per place. [2022-12-06 06:16:01,398 INFO L137 encePairwiseOnDemand]: 22/27 looper letters, 20 selfloop transitions, 4 changer transitions 4/36 dead transitions. [2022-12-06 06:16:01,398 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 36 transitions, 159 flow [2022-12-06 06:16:01,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 06:16:01,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 06:16:01,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 53 transitions. [2022-12-06 06:16:01,400 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.654320987654321 [2022-12-06 06:16:01,400 INFO L175 Difference]: Start difference. First operand has 34 places, 29 transitions, 88 flow. Second operand 3 states and 53 transitions. [2022-12-06 06:16:01,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 36 transitions, 159 flow [2022-12-06 06:16:01,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 36 transitions, 149 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-06 06:16:01,402 INFO L231 Difference]: Finished difference. Result has 35 places, 29 transitions, 92 flow [2022-12-06 06:16:01,402 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=35, PETRI_TRANSITIONS=29} [2022-12-06 06:16:01,402 INFO L294 CegarLoopForPetriNet]: 32 programPoint places, 3 predicate places. [2022-12-06 06:16:01,402 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 06:16:01,402 INFO L89 Accepts]: Start accepts. Operand has 35 places, 29 transitions, 92 flow [2022-12-06 06:16:01,403 INFO L95 Accepts]: Finished accepts. [2022-12-06 06:16:01,403 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:16:01,403 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 29 transitions, 92 flow [2022-12-06 06:16:01,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 29 transitions, 92 flow [2022-12-06 06:16:01,407 INFO L130 PetriNetUnfolder]: 2/45 cut-off events. [2022-12-06 06:16:01,407 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-06 06:16:01,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 45 events. 2/45 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 140 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 71. Up to 9 conditions per place. [2022-12-06 06:16:01,408 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 29 transitions, 92 flow [2022-12-06 06:16:01,408 INFO L188 LiptonReduction]: Number of co-enabled transitions 278 [2022-12-06 06:16:01,412 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 06:16:01,412 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 10 [2022-12-06 06:16:01,413 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 29 transitions, 92 flow [2022-12-06 06:16:01,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:16:01,413 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:16:01,413 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:16:01,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 06:16:01,413 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 06:16:01,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:16:01,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1363752365, now seen corresponding path program 1 times [2022-12-06 06:16:01,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:16:01,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362857339] [2022-12-06 06:16:01,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:16:01,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:16:01,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:16:01,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 06:16:01,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:16:01,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362857339] [2022-12-06 06:16:01,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362857339] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:16:01,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:16:01,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 06:16:01,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368128294] [2022-12-06 06:16:01,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:16:01,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 06:16:01,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:16:01,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 06:16:01,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-06 06:16:01,492 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 27 [2022-12-06 06:16:01,492 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 29 transitions, 92 flow. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:16:01,492 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:16:01,492 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 27 [2022-12-06 06:16:01,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:16:01,681 INFO L130 PetriNetUnfolder]: 400/729 cut-off events. [2022-12-06 06:16:01,681 INFO L131 PetriNetUnfolder]: For 247/247 co-relation queries the response was YES. [2022-12-06 06:16:01,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1633 conditions, 729 events. 400/729 cut-off events. For 247/247 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3383 event pairs, 55 based on Foata normal form. 30/709 useless extension candidates. Maximal degree in co-relation 1394. Up to 333 conditions per place. [2022-12-06 06:16:01,684 INFO L137 encePairwiseOnDemand]: 17/27 looper letters, 46 selfloop transitions, 10 changer transitions 37/94 dead transitions. [2022-12-06 06:16:01,684 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 94 transitions, 441 flow [2022-12-06 06:16:01,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 06:16:01,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 06:16:01,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 109 transitions. [2022-12-06 06:16:01,687 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.40370370370370373 [2022-12-06 06:16:01,687 INFO L175 Difference]: Start difference. First operand has 35 places, 29 transitions, 92 flow. Second operand 10 states and 109 transitions. [2022-12-06 06:16:01,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 94 transitions, 441 flow [2022-12-06 06:16:01,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 94 transitions, 435 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 06:16:01,692 INFO L231 Difference]: Finished difference. Result has 51 places, 37 transitions, 178 flow [2022-12-06 06:16:01,693 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=178, PETRI_PLACES=51, PETRI_TRANSITIONS=37} [2022-12-06 06:16:01,693 INFO L294 CegarLoopForPetriNet]: 32 programPoint places, 19 predicate places. [2022-12-06 06:16:01,694 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 06:16:01,694 INFO L89 Accepts]: Start accepts. Operand has 51 places, 37 transitions, 178 flow [2022-12-06 06:16:01,696 INFO L95 Accepts]: Finished accepts. [2022-12-06 06:16:01,696 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:16:01,696 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 37 transitions, 178 flow [2022-12-06 06:16:01,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 37 transitions, 178 flow [2022-12-06 06:16:01,702 INFO L130 PetriNetUnfolder]: 15/91 cut-off events. [2022-12-06 06:16:01,702 INFO L131 PetriNetUnfolder]: For 75/75 co-relation queries the response was YES. [2022-12-06 06:16:01,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 91 events. 15/91 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 358 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 216. Up to 15 conditions per place. [2022-12-06 06:16:01,703 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 37 transitions, 178 flow [2022-12-06 06:16:01,703 INFO L188 LiptonReduction]: Number of co-enabled transitions 260 [2022-12-06 06:16:01,717 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [185] L737-->L740: Formula: (= v_~flag1~0_1 v_thr2Thread1of1ForFork1_~f12~0_1) InVars {~flag1~0=v_~flag1~0_1} OutVars{~flag1~0=v_~flag1~0_1, thr2Thread1of1ForFork1_~f12~0=v_thr2Thread1of1ForFork1_~f12~0_1} AuxVars[] AssignedVars[thr2Thread1of1ForFork1_~f12~0] and [202] L706-->L709: Formula: (= v_~turn~0_4 1) InVars {} OutVars{~turn~0=v_~turn~0_4} AuxVars[] AssignedVars[~turn~0] [2022-12-06 06:16:01,781 INFO L203 LiptonReduction]: Total number of compositions: 3 [2022-12-06 06:16:01,782 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 88 [2022-12-06 06:16:01,782 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 35 transitions, 178 flow [2022-12-06 06:16:01,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:16:01,782 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:16:01,782 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:16:01,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 06:16:01,783 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 06:16:01,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:16:01,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1098256173, now seen corresponding path program 2 times [2022-12-06 06:16:01,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:16:01,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289734472] [2022-12-06 06:16:01,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:16:01,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:16:01,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:16:01,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 06:16:01,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:16:01,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289734472] [2022-12-06 06:16:01,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289734472] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:16:01,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:16:01,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 06:16:01,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529798332] [2022-12-06 06:16:01,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:16:01,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 06:16:01,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:16:01,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 06:16:01,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-06 06:16:01,857 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 28 [2022-12-06 06:16:01,857 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 35 transitions, 178 flow. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:16:01,857 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:16:01,857 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 28 [2022-12-06 06:16:01,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:16:02,003 INFO L130 PetriNetUnfolder]: 298/511 cut-off events. [2022-12-06 06:16:02,003 INFO L131 PetriNetUnfolder]: For 736/736 co-relation queries the response was YES. [2022-12-06 06:16:02,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1609 conditions, 511 events. 298/511 cut-off events. For 736/736 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2007 event pairs, 32 based on Foata normal form. 32/529 useless extension candidates. Maximal degree in co-relation 1214. Up to 182 conditions per place. [2022-12-06 06:16:02,005 INFO L137 encePairwiseOnDemand]: 16/28 looper letters, 0 selfloop transitions, 0 changer transitions 90/90 dead transitions. [2022-12-06 06:16:02,005 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 90 transitions, 665 flow [2022-12-06 06:16:02,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 06:16:02,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 06:16:02,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 90 transitions. [2022-12-06 06:16:02,007 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.35714285714285715 [2022-12-06 06:16:02,007 INFO L175 Difference]: Start difference. First operand has 46 places, 35 transitions, 178 flow. Second operand 9 states and 90 transitions. [2022-12-06 06:16:02,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 90 transitions, 665 flow [2022-12-06 06:16:02,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 90 transitions, 541 flow, removed 50 selfloop flow, removed 7 redundant places. [2022-12-06 06:16:02,012 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2022-12-06 06:16:02,012 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2022-12-06 06:16:02,012 INFO L294 CegarLoopForPetriNet]: 32 programPoint places, 13 predicate places. [2022-12-06 06:16:02,012 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:16:02,013 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 0 transitions, 0 flow [2022-12-06 06:16:02,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-06 06:16:02,013 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-06 06:16:02,013 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 06:16:02,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2022-12-06 06:16:02,013 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-06 06:16:02,013 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 06:16:02,013 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 06:16:02,014 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2 [2022-12-06 06:16:02,014 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-06 06:16:02,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:16:02,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-12-06 06:16:02,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-12-06 06:16:02,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-12-06 06:16:02,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2022-12-06 06:16:02,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-12-06 06:16:02,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-12-06 06:16:02,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 06:16:02,017 INFO L458 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-12-06 06:16:02,020 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 06:16:02,020 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 06:16:02,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 06:16:02 BasicIcfg [2022-12-06 06:16:02,022 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 06:16:02,023 INFO L158 Benchmark]: Toolchain (without parser) took 3696.75ms. Allocated memory was 183.5MB in the beginning and 221.2MB in the end (delta: 37.7MB). Free memory was 158.9MB in the beginning and 165.2MB in the end (delta: -6.3MB). Peak memory consumption was 32.8MB. Max. memory is 8.0GB. [2022-12-06 06:16:02,023 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 183.5MB. Free memory is still 160.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 06:16:02,023 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.26ms. Allocated memory is still 183.5MB. Free memory was 158.7MB in the beginning and 135.6MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-06 06:16:02,023 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.28ms. Allocated memory is still 183.5MB. Free memory was 135.6MB in the beginning and 133.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 06:16:02,024 INFO L158 Benchmark]: Boogie Preprocessor took 24.31ms. Allocated memory is still 183.5MB. Free memory was 133.5MB in the beginning and 132.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 06:16:02,024 INFO L158 Benchmark]: RCFGBuilder took 367.88ms. Allocated memory is still 183.5MB. Free memory was 131.9MB in the beginning and 118.8MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-06 06:16:02,024 INFO L158 Benchmark]: TraceAbstraction took 2890.00ms. Allocated memory was 183.5MB in the beginning and 221.2MB in the end (delta: 37.7MB). Free memory was 118.3MB in the beginning and 165.2MB in the end (delta: -46.9MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 06:16:02,025 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 183.5MB. Free memory is still 160.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 377.26ms. Allocated memory is still 183.5MB. Free memory was 158.7MB in the beginning and 135.6MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.28ms. Allocated memory is still 183.5MB. Free memory was 135.6MB in the beginning and 133.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.31ms. Allocated memory is still 183.5MB. Free memory was 133.5MB in the beginning and 132.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 367.88ms. Allocated memory is still 183.5MB. Free memory was 131.9MB in the beginning and 118.8MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2890.00ms. Allocated memory was 183.5MB in the beginning and 221.2MB in the end (delta: 37.7MB). Free memory was 118.3MB in the beginning and 165.2MB in the end (delta: -46.9MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5s, 68 PlacesBefore, 32 PlacesAfterwards, 67 TransitionsBefore, 29 TransitionsAfterwards, 1188 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 17 TrivialYvCompositions, 19 ConcurrentYvCompositions, 2 ChoiceCompositions, 43 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1012, independent: 935, independent conditional: 935, independent unconditional: 0, dependent: 77, dependent conditional: 77, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1012, independent: 935, independent conditional: 0, independent unconditional: 935, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1012, independent: 935, independent conditional: 0, independent unconditional: 935, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1012, independent: 935, independent conditional: 0, independent unconditional: 935, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 750, independent: 712, independent conditional: 0, independent unconditional: 712, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 750, independent: 696, independent conditional: 0, independent unconditional: 696, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 54, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 60, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1012, independent: 223, independent conditional: 0, independent unconditional: 223, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 750, unknown conditional: 0, unknown unconditional: 750] , Statistics on independence cache: Total cache size (in pairs): 1128, Positive cache size: 1090, Positive conditional cache size: 0, Positive unconditional cache size: 1090, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 33 PlacesBefore, 34 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 296 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 188, independent: 147, independent conditional: 147, independent unconditional: 0, dependent: 41, dependent conditional: 41, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 188, independent: 147, independent conditional: 0, independent unconditional: 147, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 188, independent: 147, independent conditional: 0, independent unconditional: 147, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 188, independent: 147, independent conditional: 0, independent unconditional: 147, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 83, independent: 66, independent conditional: 0, independent unconditional: 66, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 83, independent: 66, independent conditional: 0, independent unconditional: 66, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 17, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 19, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 188, independent: 81, independent conditional: 0, independent unconditional: 81, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 83, unknown conditional: 0, unknown unconditional: 83] , Statistics on independence cache: Total cache size (in pairs): 83, Positive cache size: 66, Positive conditional cache size: 0, Positive unconditional cache size: 66, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 35 PlacesBefore, 35 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 278 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 94, independent: 75, independent conditional: 75, independent unconditional: 0, dependent: 19, dependent conditional: 19, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 94, independent: 75, independent conditional: 0, independent unconditional: 75, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 94, independent: 75, independent conditional: 0, independent unconditional: 75, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 94, independent: 75, independent conditional: 0, independent unconditional: 75, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 34, independent: 30, independent conditional: 0, independent unconditional: 30, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 34, independent: 30, independent conditional: 0, independent unconditional: 30, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 94, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 34, unknown conditional: 0, unknown unconditional: 34] , Statistics on independence cache: Total cache size (in pairs): 117, Positive cache size: 96, Positive conditional cache size: 0, Positive unconditional cache size: 96, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 48 PlacesBefore, 46 PlacesAfterwards, 37 TransitionsBefore, 35 TransitionsAfterwards, 260 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 158, independent: 123, independent conditional: 123, independent unconditional: 0, dependent: 35, dependent conditional: 35, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 158, independent: 123, independent conditional: 49, independent unconditional: 74, dependent: 35, dependent conditional: 13, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 158, independent: 123, independent conditional: 30, independent unconditional: 93, dependent: 35, dependent conditional: 2, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 158, independent: 123, independent conditional: 30, independent unconditional: 93, dependent: 35, dependent conditional: 2, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 24, independent: 20, independent conditional: 12, independent unconditional: 8, dependent: 4, dependent conditional: 2, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 24, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 2, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 2, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 158, independent: 103, independent conditional: 18, independent unconditional: 85, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 24, unknown conditional: 14, unknown unconditional: 10] , Statistics on independence cache: Total cache size (in pairs): 144, Positive cache size: 119, Positive conditional cache size: 12, Positive unconditional cache size: 107, Negative cache size: 25, Negative conditional cache size: 2, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 30, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 144, Positive cache size: 119, Positive conditional cache size: 12, Positive unconditional cache size: 107, Negative cache size: 25, Negative conditional cache size: 2, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 753]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 725]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 107 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 130 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 130 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 529 IncrementalHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 29 mSDtfsCounter, 529 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=178occurred in iteration=3, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 06:16:02,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...