/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-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix021_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 03:02:17,503 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 03:02:17,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 03:02:17,546 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 03:02:17,547 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 03:02:17,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 03:02:17,553 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 03:02:17,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 03:02:17,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 03:02:17,564 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 03:02:17,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 03:02:17,566 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 03:02:17,566 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 03:02:17,568 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 03:02:17,569 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 03:02:17,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 03:02:17,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 03:02:17,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 03:02:17,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 03:02:17,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 03:02:17,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 03:02:17,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 03:02:17,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 03:02:17,583 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 03:02:17,588 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 03:02:17,588 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 03:02:17,589 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 03:02:17,590 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 03:02:17,590 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 03:02:17,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 03:02:17,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 03:02:17,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 03:02:17,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 03:02:17,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 03:02:17,595 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 03:02:17,595 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 03:02:17,595 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 03:02:17,595 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 03:02:17,596 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 03:02:17,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 03:02:17,597 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 03:02:17,600 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-RepeatedSemanticLbe.epf [2022-12-13 03:02:17,626 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 03:02:17,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 03:02:17,628 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 03:02:17,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 03:02:17,629 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 03:02:17,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 03:02:17,630 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 03:02:17,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 03:02:17,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 03:02:17,630 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 03:02:17,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 03:02:17,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 03:02:17,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 03:02:17,631 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 03:02:17,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 03:02:17,632 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 03:02:17,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 03:02:17,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 03:02:17,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 03:02:17,632 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 03:02:17,632 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 03:02:17,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 03:02:17,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 03:02:17,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 03:02:17,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 03:02:17,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 03:02:17,633 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 03:02:17,633 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 03:02:17,633 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-13 03:02:17,895 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 03:02:17,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 03:02:17,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 03:02:17,911 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 03:02:17,911 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 03:02:17,912 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix021_tso.oepc.i [2022-12-13 03:02:18,942 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 03:02:19,225 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 03:02:19,226 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix021_tso.oepc.i [2022-12-13 03:02:19,249 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/030f7cc2f/0d7873fe24db436c9ac70e66daea8829/FLAGefd22cb35 [2022-12-13 03:02:19,264 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/030f7cc2f/0d7873fe24db436c9ac70e66daea8829 [2022-12-13 03:02:19,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 03:02:19,267 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 03:02:19,268 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 03:02:19,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 03:02:19,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 03:02:19,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:02:19" (1/1) ... [2022-12-13 03:02:19,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7435e669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:19, skipping insertion in model container [2022-12-13 03:02:19,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:02:19" (1/1) ... [2022-12-13 03:02:19,276 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 03:02:19,319 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 03:02:19,453 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-wmm/mix021_tso.oepc.i[949,962] [2022-12-13 03:02:19,615 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,615 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,615 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,616 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,616 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,617 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,617 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,618 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,618 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,619 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,619 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,619 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,619 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,627 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,627 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,627 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,628 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,630 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,631 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,631 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,631 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,639 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,639 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,640 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,645 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,646 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,646 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,647 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,647 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,647 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,648 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,653 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,654 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,654 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,670 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,671 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,678 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,678 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,690 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 03:02:19,706 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 03:02:19,716 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-wmm/mix021_tso.oepc.i[949,962] [2022-12-13 03:02:19,753 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,753 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,754 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,754 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,754 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,754 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,754 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,755 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,757 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,757 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,757 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,757 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,758 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,763 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,763 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,763 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,765 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,766 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,766 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,768 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,768 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,770 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,770 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,770 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,771 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,771 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,772 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,772 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,772 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,772 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,772 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,778 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,778 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,779 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,782 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,782 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,784 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,784 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:19,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:19,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 03:02:19,826 INFO L208 MainTranslator]: Completed translation [2022-12-13 03:02:19,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:19 WrapperNode [2022-12-13 03:02:19,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 03:02:19,828 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 03:02:19,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 03:02:19,829 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 03:02:19,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:19" (1/1) ... [2022-12-13 03:02:19,866 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:19" (1/1) ... [2022-12-13 03:02:19,890 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 159 [2022-12-13 03:02:19,890 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 03:02:19,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 03:02:19,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 03:02:19,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 03:02:19,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:19" (1/1) ... [2022-12-13 03:02:19,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:19" (1/1) ... [2022-12-13 03:02:19,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:19" (1/1) ... [2022-12-13 03:02:19,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:19" (1/1) ... [2022-12-13 03:02:19,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:19" (1/1) ... [2022-12-13 03:02:19,920 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:19" (1/1) ... [2022-12-13 03:02:19,922 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:19" (1/1) ... [2022-12-13 03:02:19,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:19" (1/1) ... [2022-12-13 03:02:19,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 03:02:19,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 03:02:19,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 03:02:19,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 03:02:19,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:19" (1/1) ... [2022-12-13 03:02:19,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 03:02:19,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 03:02:19,967 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) [2022-12-13 03:02:20,011 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 [2022-12-13 03:02:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 03:02:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 03:02:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 03:02:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 03:02:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 03:02:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 03:02:20,029 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 03:02:20,029 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 03:02:20,029 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 03:02:20,029 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 03:02:20,029 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 03:02:20,030 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-13 03:02:20,030 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-13 03:02:20,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 03:02:20,030 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 03:02:20,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 03:02:20,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 03:02:20,032 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 03:02:20,197 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 03:02:20,199 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 03:02:20,507 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 03:02:20,612 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 03:02:20,613 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 03:02:20,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:02:20 BoogieIcfgContainer [2022-12-13 03:02:20,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 03:02:20,617 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 03:02:20,617 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 03:02:20,620 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 03:02:20,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:02:19" (1/3) ... [2022-12-13 03:02:20,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f23e638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:02:20, skipping insertion in model container [2022-12-13 03:02:20,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:19" (2/3) ... [2022-12-13 03:02:20,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f23e638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:02:20, skipping insertion in model container [2022-12-13 03:02:20,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:02:20" (3/3) ... [2022-12-13 03:02:20,624 INFO L112 eAbstractionObserver]: Analyzing ICFG mix021_tso.oepc.i [2022-12-13 03:02:20,641 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 03:02:20,641 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 03:02:20,641 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 03:02:20,708 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 03:02:20,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 129 transitions, 278 flow [2022-12-13 03:02:20,828 INFO L130 PetriNetUnfolder]: 2/125 cut-off events. [2022-12-13 03:02:20,829 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:02:20,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 125 events. 2/125 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 71 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2022-12-13 03:02:20,837 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 129 transitions, 278 flow [2022-12-13 03:02:20,845 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 136 places, 125 transitions, 262 flow [2022-12-13 03:02:20,847 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:02:20,878 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 136 places, 125 transitions, 262 flow [2022-12-13 03:02:20,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 125 transitions, 262 flow [2022-12-13 03:02:20,933 INFO L130 PetriNetUnfolder]: 2/125 cut-off events. [2022-12-13 03:02:20,936 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:02:20,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 125 events. 2/125 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 71 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2022-12-13 03:02:20,947 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 136 places, 125 transitions, 262 flow [2022-12-13 03:02:20,947 INFO L226 LiptonReduction]: Number of co-enabled transitions 2986 [2022-12-13 03:02:29,586 INFO L241 LiptonReduction]: Total number of compositions: 98 [2022-12-13 03:02:29,603 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 03:02:29,610 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;@3a0776ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 03:02:29,610 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-13 03:02:29,623 INFO L130 PetriNetUnfolder]: 0/17 cut-off events. [2022-12-13 03:02:29,624 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:02:29,624 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:02:29,624 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:02:29,625 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:02:29,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:02:29,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1718137257, now seen corresponding path program 1 times [2022-12-13 03:02:29,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:02:29,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410525260] [2022-12-13 03:02:29,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:02:29,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:02:29,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:02:30,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:02:30,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:02:30,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410525260] [2022-12-13 03:02:30,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410525260] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:02:30,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:02:30,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 03:02:30,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83003435] [2022-12-13 03:02:30,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:02:30,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 03:02:30,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:02:30,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 03:02:30,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 03:02:30,114 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 72 [2022-12-13 03:02:30,115 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 72 transitions, 156 flow. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2022-12-13 03:02:30,115 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:02:30,115 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 72 [2022-12-13 03:02:30,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:02:36,055 INFO L130 PetriNetUnfolder]: 45079/65069 cut-off events. [2022-12-13 03:02:36,055 INFO L131 PetriNetUnfolder]: For 99/99 co-relation queries the response was YES. [2022-12-13 03:02:36,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125053 conditions, 65069 events. 45079/65069 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 3600. Compared 495417 event pairs, 11775 based on Foata normal form. 0/39954 useless extension candidates. Maximal degree in co-relation 125041. Up to 50025 conditions per place. [2022-12-13 03:02:36,300 INFO L137 encePairwiseOnDemand]: 67/72 looper letters, 40 selfloop transitions, 2 changer transitions 56/113 dead transitions. [2022-12-13 03:02:36,300 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 113 transitions, 437 flow [2022-12-13 03:02:36,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 03:02:36,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 03:02:36,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 148 transitions. [2022-12-13 03:02:36,310 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6851851851851852 [2022-12-13 03:02:36,313 INFO L295 CegarLoopForPetriNet]: 84 programPoint places, 0 predicate places. [2022-12-13 03:02:36,314 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 113 transitions, 437 flow [2022-12-13 03:02:36,381 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 57 transitions, 213 flow [2022-12-13 03:02:36,685 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:02:36,686 INFO L89 Accepts]: Start accepts. Operand has 56 places, 57 transitions, 213 flow [2022-12-13 03:02:36,691 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:02:36,691 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:02:36,692 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 57 transitions, 213 flow [2022-12-13 03:02:36,700 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 57 transitions, 213 flow [2022-12-13 03:02:36,700 INFO L226 LiptonReduction]: Number of co-enabled transitions 930 [2022-12-13 03:02:38,456 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:02:38,459 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1774 [2022-12-13 03:02:38,459 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 57 transitions, 213 flow [2022-12-13 03:02:38,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2022-12-13 03:02:38,459 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:02:38,459 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:02:38,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 03:02:38,462 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:02:38,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:02:38,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1222412776, now seen corresponding path program 1 times [2022-12-13 03:02:38,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:02:38,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460244572] [2022-12-13 03:02:38,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:02:38,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:02:38,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:02:38,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:02:38,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:02:38,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460244572] [2022-12-13 03:02:38,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460244572] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:02:38,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:02:38,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 03:02:38,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968085313] [2022-12-13 03:02:38,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:02:38,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 03:02:38,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:02:38,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 03:02:38,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 03:02:38,737 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2022-12-13 03:02:38,738 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 57 transitions, 213 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2022-12-13 03:02:38,738 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:02:38,738 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2022-12-13 03:02:38,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:02:39,639 INFO L130 PetriNetUnfolder]: 6909/10357 cut-off events. [2022-12-13 03:02:39,640 INFO L131 PetriNetUnfolder]: For 1376/1386 co-relation queries the response was YES. [2022-12-13 03:02:39,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29030 conditions, 10357 events. 6909/10357 cut-off events. For 1376/1386 co-relation queries the response was YES. Maximal size of possible extension queue 529. Compared 64936 event pairs, 637 based on Foata normal form. 200/8572 useless extension candidates. Maximal degree in co-relation 29015. Up to 7537 conditions per place. [2022-12-13 03:02:39,704 INFO L137 encePairwiseOnDemand]: 38/41 looper letters, 63 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2022-12-13 03:02:39,704 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 79 transitions, 431 flow [2022-12-13 03:02:39,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 03:02:39,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 03:02:39,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2022-12-13 03:02:39,706 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6747967479674797 [2022-12-13 03:02:39,706 INFO L295 CegarLoopForPetriNet]: 84 programPoint places, -26 predicate places. [2022-12-13 03:02:39,706 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 79 transitions, 431 flow [2022-12-13 03:02:39,750 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 79 transitions, 431 flow [2022-12-13 03:02:39,820 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:02:39,821 INFO L89 Accepts]: Start accepts. Operand has 58 places, 79 transitions, 431 flow [2022-12-13 03:02:39,822 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:02:39,822 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:02:39,822 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 79 transitions, 431 flow [2022-12-13 03:02:39,825 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 79 transitions, 431 flow [2022-12-13 03:02:39,825 INFO L226 LiptonReduction]: Number of co-enabled transitions 1148 [2022-12-13 03:02:40,200 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 03:02:40,201 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 381 [2022-12-13 03:02:40,201 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 79 transitions, 431 flow [2022-12-13 03:02:40,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2022-12-13 03:02:40,201 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:02:40,201 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:02:40,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 03:02:40,202 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:02:40,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:02:40,202 INFO L85 PathProgramCache]: Analyzing trace with hash -2140734449, now seen corresponding path program 1 times [2022-12-13 03:02:40,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:02:40,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720851266] [2022-12-13 03:02:40,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:02:40,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:02:40,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:02:40,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:02:40,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:02:40,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720851266] [2022-12-13 03:02:40,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720851266] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:02:40,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:02:40,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 03:02:40,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077049850] [2022-12-13 03:02:40,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:02:40,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 03:02:40,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:02:40,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 03:02:40,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 03:02:40,571 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2022-12-13 03:02:40,571 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 79 transitions, 431 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2022-12-13 03:02:40,571 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:02:40,571 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2022-12-13 03:02:40,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:02:42,912 INFO L130 PetriNetUnfolder]: 22934/32762 cut-off events. [2022-12-13 03:02:42,912 INFO L131 PetriNetUnfolder]: For 14830/14830 co-relation queries the response was YES. [2022-12-13 03:02:43,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115791 conditions, 32762 events. 22934/32762 cut-off events. For 14830/14830 co-relation queries the response was YES. Maximal size of possible extension queue 1210. Compared 204065 event pairs, 2045 based on Foata normal form. 600/27557 useless extension candidates. Maximal degree in co-relation 115773. Up to 22762 conditions per place. [2022-12-13 03:02:43,148 INFO L137 encePairwiseOnDemand]: 29/42 looper letters, 142 selfloop transitions, 29 changer transitions 0/181 dead transitions. [2022-12-13 03:02:43,148 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 181 transitions, 1378 flow [2022-12-13 03:02:43,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 03:02:43,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 03:02:43,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 122 transitions. [2022-12-13 03:02:43,149 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7261904761904762 [2022-12-13 03:02:43,150 INFO L295 CegarLoopForPetriNet]: 84 programPoint places, -23 predicate places. [2022-12-13 03:02:43,150 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 181 transitions, 1378 flow [2022-12-13 03:02:43,288 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 181 transitions, 1378 flow [2022-12-13 03:02:43,497 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:02:43,497 INFO L89 Accepts]: Start accepts. Operand has 61 places, 181 transitions, 1378 flow [2022-12-13 03:02:43,498 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:02:43,498 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:02:43,499 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 181 transitions, 1378 flow [2022-12-13 03:02:43,504 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 181 transitions, 1378 flow [2022-12-13 03:02:43,504 INFO L226 LiptonReduction]: Number of co-enabled transitions 1736 [2022-12-13 03:02:43,517 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:02:43,518 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 21 [2022-12-13 03:02:43,518 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 181 transitions, 1378 flow [2022-12-13 03:02:43,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2022-12-13 03:02:43,518 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:02:43,518 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:02:43,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 03:02:43,519 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:02:43,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:02:43,519 INFO L85 PathProgramCache]: Analyzing trace with hash -128511482, now seen corresponding path program 1 times [2022-12-13 03:02:43,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:02:43,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125300893] [2022-12-13 03:02:43,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:02:43,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:02:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:02:44,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:02:44,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:02:44,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125300893] [2022-12-13 03:02:44,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125300893] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:02:44,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:02:44,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 03:02:44,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469273671] [2022-12-13 03:02:44,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:02:44,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 03:02:44,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:02:44,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 03:02:44,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 03:02:44,468 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 42 [2022-12-13 03:02:44,469 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 181 transitions, 1378 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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) [2022-12-13 03:02:44,469 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:02:44,469 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 42 [2022-12-13 03:02:44,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:02:47,065 INFO L130 PetriNetUnfolder]: 23491/33520 cut-off events. [2022-12-13 03:02:47,065 INFO L131 PetriNetUnfolder]: For 32248/32248 co-relation queries the response was YES. [2022-12-13 03:02:47,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145682 conditions, 33520 events. 23491/33520 cut-off events. For 32248/32248 co-relation queries the response was YES. Maximal size of possible extension queue 1264. Compared 207701 event pairs, 1191 based on Foata normal form. 120/27705 useless extension candidates. Maximal degree in co-relation 145661. Up to 24415 conditions per place. [2022-12-13 03:02:47,294 INFO L137 encePairwiseOnDemand]: 36/42 looper letters, 235 selfloop transitions, 20 changer transitions 0/276 dead transitions. [2022-12-13 03:02:47,295 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 276 transitions, 2653 flow [2022-12-13 03:02:47,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 03:02:47,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 03:02:47,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 116 transitions. [2022-12-13 03:02:47,299 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6904761904761905 [2022-12-13 03:02:47,300 INFO L295 CegarLoopForPetriNet]: 84 programPoint places, -20 predicate places. [2022-12-13 03:02:47,301 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 276 transitions, 2653 flow [2022-12-13 03:02:47,461 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 276 transitions, 2653 flow [2022-12-13 03:02:47,753 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:02:47,753 INFO L89 Accepts]: Start accepts. Operand has 64 places, 276 transitions, 2653 flow [2022-12-13 03:02:47,754 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:02:47,754 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:02:47,754 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 276 transitions, 2653 flow [2022-12-13 03:02:47,766 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 276 transitions, 2653 flow [2022-12-13 03:02:47,767 INFO L226 LiptonReduction]: Number of co-enabled transitions 2378 [2022-12-13 03:02:47,775 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:02:47,780 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 27 [2022-12-13 03:02:47,780 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 276 transitions, 2653 flow [2022-12-13 03:02:47,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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) [2022-12-13 03:02:47,780 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:02:47,780 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:02:47,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 03:02:47,780 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:02:47,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:02:47,781 INFO L85 PathProgramCache]: Analyzing trace with hash 307811726, now seen corresponding path program 1 times [2022-12-13 03:02:47,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:02:47,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908120439] [2022-12-13 03:02:47,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:02:47,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:02:47,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:02:48,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:02:48,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:02:48,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908120439] [2022-12-13 03:02:48,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908120439] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:02:48,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:02:48,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 03:02:48,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159295197] [2022-12-13 03:02:48,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:02:48,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 03:02:48,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:02:48,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 03:02:48,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 03:02:48,106 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 42 [2022-12-13 03:02:48,106 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 276 transitions, 2653 flow. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 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) [2022-12-13 03:02:48,106 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:02:48,106 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 42 [2022-12-13 03:02:48,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:02:51,194 INFO L130 PetriNetUnfolder]: 25014/35589 cut-off events. [2022-12-13 03:02:51,194 INFO L131 PetriNetUnfolder]: For 59900/59900 co-relation queries the response was YES. [2022-12-13 03:02:51,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183665 conditions, 35589 events. 25014/35589 cut-off events. For 59900/59900 co-relation queries the response was YES. Maximal size of possible extension queue 1333. Compared 221139 event pairs, 1281 based on Foata normal form. 50/29514 useless extension candidates. Maximal degree in co-relation 183641. Up to 26055 conditions per place. [2022-12-13 03:02:51,479 INFO L137 encePairwiseOnDemand]: 34/42 looper letters, 294 selfloop transitions, 42 changer transitions 0/357 dead transitions. [2022-12-13 03:02:51,480 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 357 transitions, 4153 flow [2022-12-13 03:02:51,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 03:02:51,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 03:02:51,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 144 transitions. [2022-12-13 03:02:51,482 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6857142857142857 [2022-12-13 03:02:51,484 INFO L295 CegarLoopForPetriNet]: 84 programPoint places, -16 predicate places. [2022-12-13 03:02:51,484 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 357 transitions, 4153 flow [2022-12-13 03:02:51,673 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 357 transitions, 4153 flow [2022-12-13 03:02:52,003 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:02:52,004 INFO L89 Accepts]: Start accepts. Operand has 68 places, 357 transitions, 4153 flow [2022-12-13 03:02:52,005 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:02:52,005 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:02:52,005 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 357 transitions, 4153 flow [2022-12-13 03:02:52,023 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 357 transitions, 4153 flow [2022-12-13 03:02:52,023 INFO L226 LiptonReduction]: Number of co-enabled transitions 2870 [2022-12-13 03:02:52,034 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:02:52,035 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 32 [2022-12-13 03:02:52,035 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 357 transitions, 4153 flow [2022-12-13 03:02:52,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 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) [2022-12-13 03:02:52,035 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:02:52,035 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:02:52,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 03:02:52,035 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:02:52,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:02:52,036 INFO L85 PathProgramCache]: Analyzing trace with hash -837358034, now seen corresponding path program 1 times [2022-12-13 03:02:52,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:02:52,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363700062] [2022-12-13 03:02:52,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:02:52,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:02:52,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:02:52,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:02:52,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:02:52,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363700062] [2022-12-13 03:02:52,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363700062] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:02:52,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:02:52,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 03:02:52,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715225132] [2022-12-13 03:02:52,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:02:52,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 03:02:52,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:02:52,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 03:02:52,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 03:02:52,360 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 42 [2022-12-13 03:02:52,361 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 357 transitions, 4153 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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) [2022-12-13 03:02:52,361 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:02:52,361 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 42 [2022-12-13 03:02:52,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:02:55,970 INFO L130 PetriNetUnfolder]: 24521/34916 cut-off events. [2022-12-13 03:02:55,970 INFO L131 PetriNetUnfolder]: For 91645/91645 co-relation queries the response was YES. [2022-12-13 03:02:56,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208245 conditions, 34916 events. 24521/34916 cut-off events. For 91645/91645 co-relation queries the response was YES. Maximal size of possible extension queue 1305. Compared 216576 event pairs, 1216 based on Foata normal form. 125/29028 useless extension candidates. Maximal degree in co-relation 208218. Up to 25454 conditions per place. [2022-12-13 03:02:56,327 INFO L137 encePairwiseOnDemand]: 35/42 looper letters, 307 selfloop transitions, 27 changer transitions 0/355 dead transitions. [2022-12-13 03:02:56,328 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 355 transitions, 4797 flow [2022-12-13 03:02:56,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 03:02:56,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 03:02:56,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 116 transitions. [2022-12-13 03:02:56,330 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6904761904761905 [2022-12-13 03:02:56,333 INFO L295 CegarLoopForPetriNet]: 84 programPoint places, -13 predicate places. [2022-12-13 03:02:56,333 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 355 transitions, 4797 flow [2022-12-13 03:02:56,566 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 71 places, 355 transitions, 4797 flow [2022-12-13 03:02:56,910 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:02:56,911 INFO L89 Accepts]: Start accepts. Operand has 71 places, 355 transitions, 4797 flow [2022-12-13 03:02:56,912 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:02:56,912 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:02:56,912 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 355 transitions, 4797 flow [2022-12-13 03:02:56,923 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 355 transitions, 4797 flow [2022-12-13 03:02:56,923 INFO L226 LiptonReduction]: Number of co-enabled transitions 2852 [2022-12-13 03:03:00,481 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 03:03:00,482 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 3572 [2022-12-13 03:03:00,482 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 355 transitions, 4805 flow [2022-12-13 03:03:00,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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) [2022-12-13 03:03:00,483 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:03:00,483 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:03:00,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 03:03:00,483 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:03:00,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:03:00,484 INFO L85 PathProgramCache]: Analyzing trace with hash -206059774, now seen corresponding path program 2 times [2022-12-13 03:03:00,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:03:00,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283829363] [2022-12-13 03:03:00,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:03:00,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:03:00,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:03:01,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:03:01,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:03:01,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283829363] [2022-12-13 03:03:01,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283829363] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:03:01,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:03:01,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 03:03:01,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028106696] [2022-12-13 03:03:01,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:03:01,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 03:03:01,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:03:01,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 03:03:01,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 03:03:01,096 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2022-12-13 03:03:01,096 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 355 transitions, 4805 flow. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 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) [2022-12-13 03:03:01,096 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:03:01,096 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2022-12-13 03:03:01,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:03:04,439 INFO L130 PetriNetUnfolder]: 24889/35629 cut-off events. [2022-12-13 03:03:04,439 INFO L131 PetriNetUnfolder]: For 133572/133572 co-relation queries the response was YES. [2022-12-13 03:03:04,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240344 conditions, 35629 events. 24889/35629 cut-off events. For 133572/133572 co-relation queries the response was YES. Maximal size of possible extension queue 1419. Compared 226401 event pairs, 1258 based on Foata normal form. 160/29676 useless extension candidates. Maximal degree in co-relation 240314. Up to 25968 conditions per place. [2022-12-13 03:03:04,778 INFO L137 encePairwiseOnDemand]: 37/48 looper letters, 310 selfloop transitions, 56 changer transitions 0/387 dead transitions. [2022-12-13 03:03:04,779 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 387 transitions, 5983 flow [2022-12-13 03:03:04,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 03:03:04,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 03:03:04,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 177 transitions. [2022-12-13 03:03:04,780 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6145833333333334 [2022-12-13 03:03:04,781 INFO L295 CegarLoopForPetriNet]: 84 programPoint places, -8 predicate places. [2022-12-13 03:03:04,781 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 387 transitions, 5983 flow [2022-12-13 03:03:05,007 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 387 transitions, 5983 flow [2022-12-13 03:03:05,425 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:03:05,425 INFO L89 Accepts]: Start accepts. Operand has 76 places, 387 transitions, 5983 flow [2022-12-13 03:03:05,426 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:03:05,427 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:03:05,427 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 387 transitions, 5983 flow [2022-12-13 03:03:05,442 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 387 transitions, 5983 flow [2022-12-13 03:03:05,443 INFO L226 LiptonReduction]: Number of co-enabled transitions 3022 [2022-12-13 03:03:05,718 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:03:05,718 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 293 [2022-12-13 03:03:05,719 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 387 transitions, 5983 flow [2022-12-13 03:03:05,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 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) [2022-12-13 03:03:05,719 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:03:05,719 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:03:05,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 03:03:05,719 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:03:05,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:03:05,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1466195791, now seen corresponding path program 1 times [2022-12-13 03:03:05,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:03:05,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445424312] [2022-12-13 03:03:05,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:03:05,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:03:05,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:03:05,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:03:05,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:03:05,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445424312] [2022-12-13 03:03:05,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445424312] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:03:05,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:03:05,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 03:03:05,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994770308] [2022-12-13 03:03:05,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:03:05,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 03:03:05,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:03:05,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 03:03:05,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 03:03:05,830 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 44 [2022-12-13 03:03:05,831 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 387 transitions, 5983 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2022-12-13 03:03:05,831 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:03:05,831 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 44 [2022-12-13 03:03:05,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:03:10,470 INFO L130 PetriNetUnfolder]: 31083/44970 cut-off events. [2022-12-13 03:03:10,470 INFO L131 PetriNetUnfolder]: For 199133/199133 co-relation queries the response was YES. [2022-12-13 03:03:10,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339625 conditions, 44970 events. 31083/44970 cut-off events. For 199133/199133 co-relation queries the response was YES. Maximal size of possible extension queue 1845. Compared 302052 event pairs, 1611 based on Foata normal form. 1254/37944 useless extension candidates. Maximal degree in co-relation 339592. Up to 33695 conditions per place. [2022-12-13 03:03:10,851 INFO L137 encePairwiseOnDemand]: 39/44 looper letters, 313 selfloop transitions, 14 changer transitions 161/511 dead transitions. [2022-12-13 03:03:10,852 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 511 transitions, 8957 flow [2022-12-13 03:03:10,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 03:03:10,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 03:03:10,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2022-12-13 03:03:10,853 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7348484848484849 [2022-12-13 03:03:10,853 INFO L295 CegarLoopForPetriNet]: 84 programPoint places, -6 predicate places. [2022-12-13 03:03:10,853 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 511 transitions, 8957 flow [2022-12-13 03:03:11,037 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 350 transitions, 6041 flow [2022-12-13 03:03:11,358 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:03:11,359 INFO L89 Accepts]: Start accepts. Operand has 78 places, 350 transitions, 6041 flow [2022-12-13 03:03:11,360 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:03:11,360 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:03:11,360 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 350 transitions, 6041 flow [2022-12-13 03:03:11,372 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 350 transitions, 6041 flow [2022-12-13 03:03:11,372 INFO L226 LiptonReduction]: Number of co-enabled transitions 2780 [2022-12-13 03:03:11,705 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:03:11,706 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 348 [2022-12-13 03:03:11,706 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 350 transitions, 6041 flow [2022-12-13 03:03:11,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2022-12-13 03:03:11,706 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:03:11,706 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:03:11,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 03:03:11,707 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:03:11,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:03:11,707 INFO L85 PathProgramCache]: Analyzing trace with hash 948959077, now seen corresponding path program 1 times [2022-12-13 03:03:11,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:03:11,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584791986] [2022-12-13 03:03:11,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:03:11,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:03:11,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:03:12,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:03:12,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:03:12,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584791986] [2022-12-13 03:03:12,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584791986] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:03:12,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:03:12,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 03:03:12,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941127797] [2022-12-13 03:03:12,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:03:12,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 03:03:12,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:03:12,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 03:03:12,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 03:03:12,516 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2022-12-13 03:03:12,516 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 350 transitions, 6041 flow. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 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) [2022-12-13 03:03:12,516 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:03:12,516 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2022-12-13 03:03:12,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:03:18,279 INFO L130 PetriNetUnfolder]: 30218/44902 cut-off events. [2022-12-13 03:03:18,279 INFO L131 PetriNetUnfolder]: For 202480/202480 co-relation queries the response was YES. [2022-12-13 03:03:18,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 375369 conditions, 44902 events. 30218/44902 cut-off events. For 202480/202480 co-relation queries the response was YES. Maximal size of possible extension queue 1955. Compared 319616 event pairs, 2669 based on Foata normal form. 150/36736 useless extension candidates. Maximal degree in co-relation 375333. Up to 34163 conditions per place. [2022-12-13 03:03:18,797 INFO L137 encePairwiseOnDemand]: 28/43 looper letters, 347 selfloop transitions, 79 changer transitions 41/477 dead transitions. [2022-12-13 03:03:18,797 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 477 transitions, 8910 flow [2022-12-13 03:03:18,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 03:03:18,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 03:03:18,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 215 transitions. [2022-12-13 03:03:18,799 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.625 [2022-12-13 03:03:18,799 INFO L295 CegarLoopForPetriNet]: 84 programPoint places, 1 predicate places. [2022-12-13 03:03:18,799 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 477 transitions, 8910 flow [2022-12-13 03:03:19,035 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 436 transitions, 8192 flow [2022-12-13 03:03:19,446 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:03:19,449 INFO L89 Accepts]: Start accepts. Operand has 84 places, 436 transitions, 8192 flow [2022-12-13 03:03:19,452 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:03:19,452 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:03:19,452 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 436 transitions, 8192 flow [2022-12-13 03:03:19,472 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 436 transitions, 8192 flow [2022-12-13 03:03:19,472 INFO L226 LiptonReduction]: Number of co-enabled transitions 3432 [2022-12-13 03:03:19,721 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:03:19,723 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 277 [2022-12-13 03:03:19,723 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 436 transitions, 8192 flow [2022-12-13 03:03:19,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 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) [2022-12-13 03:03:19,724 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:03:19,724 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:03:19,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 03:03:19,724 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:03:19,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:03:19,724 INFO L85 PathProgramCache]: Analyzing trace with hash -206216540, now seen corresponding path program 1 times [2022-12-13 03:03:19,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:03:19,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740790929] [2022-12-13 03:03:19,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:03:19,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:03:19,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:03:20,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:03:20,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:03:20,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740790929] [2022-12-13 03:03:20,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740790929] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:03:20,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:03:20,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 03:03:20,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818033981] [2022-12-13 03:03:20,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:03:20,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 03:03:20,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:03:20,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 03:03:20,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 03:03:20,157 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2022-12-13 03:03:20,158 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 436 transitions, 8192 flow. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 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) [2022-12-13 03:03:20,158 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:03:20,158 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2022-12-13 03:03:20,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:03:25,290 INFO L130 PetriNetUnfolder]: 29698/43511 cut-off events. [2022-12-13 03:03:25,291 INFO L131 PetriNetUnfolder]: For 263442/263442 co-relation queries the response was YES. [2022-12-13 03:03:25,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 403966 conditions, 43511 events. 29698/43511 cut-off events. For 263442/263442 co-relation queries the response was YES. Maximal size of possible extension queue 1891. Compared 301451 event pairs, 2271 based on Foata normal form. 300/35451 useless extension candidates. Maximal degree in co-relation 403927. Up to 33792 conditions per place. [2022-12-13 03:03:25,656 INFO L137 encePairwiseOnDemand]: 34/43 looper letters, 372 selfloop transitions, 44 changer transitions 32/489 dead transitions. [2022-12-13 03:03:25,656 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 489 transitions, 10157 flow [2022-12-13 03:03:25,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 03:03:25,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 03:03:25,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 176 transitions. [2022-12-13 03:03:25,658 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6821705426356589 [2022-12-13 03:03:25,658 INFO L295 CegarLoopForPetriNet]: 84 programPoint places, 5 predicate places. [2022-12-13 03:03:25,658 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 489 transitions, 10157 flow [2022-12-13 03:03:25,901 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 457 transitions, 9447 flow [2022-12-13 03:03:26,310 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:03:26,310 INFO L89 Accepts]: Start accepts. Operand has 89 places, 457 transitions, 9447 flow [2022-12-13 03:03:26,311 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:03:26,311 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:03:26,311 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 457 transitions, 9447 flow [2022-12-13 03:03:26,329 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 457 transitions, 9447 flow [2022-12-13 03:03:26,329 INFO L226 LiptonReduction]: Number of co-enabled transitions 3584 [2022-12-13 03:03:26,515 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:03:26,516 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 206 [2022-12-13 03:03:26,516 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 457 transitions, 9447 flow [2022-12-13 03:03:26,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 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) [2022-12-13 03:03:26,516 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:03:26,516 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:03:26,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 03:03:26,517 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:03:26,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:03:26,517 INFO L85 PathProgramCache]: Analyzing trace with hash -209330180, now seen corresponding path program 2 times [2022-12-13 03:03:26,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:03:26,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075704053] [2022-12-13 03:03:26,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:03:26,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:03:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:03:26,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:03:26,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:03:26,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075704053] [2022-12-13 03:03:26,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075704053] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:03:26,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:03:26,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 03:03:26,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757434979] [2022-12-13 03:03:26,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:03:26,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 03:03:26,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:03:26,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 03:03:26,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 03:03:26,796 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2022-12-13 03:03:26,797 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 457 transitions, 9447 flow. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 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) [2022-12-13 03:03:26,797 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:03:26,797 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2022-12-13 03:03:26,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:03:31,984 INFO L130 PetriNetUnfolder]: 30000/44218 cut-off events. [2022-12-13 03:03:31,984 INFO L131 PetriNetUnfolder]: For 348381/348381 co-relation queries the response was YES. [2022-12-13 03:03:32,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 445399 conditions, 44218 events. 30000/44218 cut-off events. For 348381/348381 co-relation queries the response was YES. Maximal size of possible extension queue 1990. Compared 311312 event pairs, 2429 based on Foata normal form. 470/36113 useless extension candidates. Maximal degree in co-relation 445357. Up to 34590 conditions per place. [2022-12-13 03:03:32,392 INFO L137 encePairwiseOnDemand]: 34/43 looper letters, 381 selfloop transitions, 53 changer transitions 26/501 dead transitions. [2022-12-13 03:03:32,392 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 501 transitions, 11335 flow [2022-12-13 03:03:32,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 03:03:32,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 03:03:32,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 148 transitions. [2022-12-13 03:03:32,393 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6883720930232559 [2022-12-13 03:03:32,394 INFO L295 CegarLoopForPetriNet]: 84 programPoint places, 9 predicate places. [2022-12-13 03:03:32,394 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 501 transitions, 11335 flow [2022-12-13 03:03:32,785 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 475 transitions, 10711 flow [2022-12-13 03:03:33,167 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:03:33,167 INFO L89 Accepts]: Start accepts. Operand has 93 places, 475 transitions, 10711 flow [2022-12-13 03:03:33,169 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:03:33,169 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:03:33,170 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 475 transitions, 10711 flow [2022-12-13 03:03:33,189 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 475 transitions, 10711 flow [2022-12-13 03:03:33,189 INFO L226 LiptonReduction]: Number of co-enabled transitions 3702 [2022-12-13 03:03:33,415 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:03:33,417 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 250 [2022-12-13 03:03:33,417 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 475 transitions, 10711 flow [2022-12-13 03:03:33,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 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) [2022-12-13 03:03:33,417 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:03:33,418 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:03:33,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 03:03:33,418 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:03:33,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:03:33,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1051519241, now seen corresponding path program 1 times [2022-12-13 03:03:33,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:03:33,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417277406] [2022-12-13 03:03:33,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:03:33,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:03:33,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:03:33,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:03:33,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:03:33,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417277406] [2022-12-13 03:03:33,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417277406] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:03:33,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:03:33,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 03:03:33,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672493885] [2022-12-13 03:03:33,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:03:33,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 03:03:33,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:03:33,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 03:03:33,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 03:03:33,531 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2022-12-13 03:03:33,531 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 475 transitions, 10711 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-12-13 03:03:33,531 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:03:33,531 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2022-12-13 03:03:33,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:03:47,036 INFO L130 PetriNetUnfolder]: 62244/88902 cut-off events. [2022-12-13 03:03:47,037 INFO L131 PetriNetUnfolder]: For 1095591/1101794 co-relation queries the response was YES. [2022-12-13 03:03:47,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 896387 conditions, 88902 events. 62244/88902 cut-off events. For 1095591/1101794 co-relation queries the response was YES. Maximal size of possible extension queue 4407. Compared 650123 event pairs, 10477 based on Foata normal form. 3524/76283 useless extension candidates. Maximal degree in co-relation 896342. Up to 62666 conditions per place. [2022-12-13 03:03:47,978 INFO L137 encePairwiseOnDemand]: 27/43 looper letters, 551 selfloop transitions, 151 changer transitions 564/1306 dead transitions. [2022-12-13 03:03:47,979 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 1306 transitions, 33002 flow [2022-12-13 03:03:47,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 03:03:47,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 03:03:47,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 158 transitions. [2022-12-13 03:03:47,980 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7348837209302326 [2022-12-13 03:03:47,980 INFO L295 CegarLoopForPetriNet]: 84 programPoint places, 13 predicate places. [2022-12-13 03:03:47,980 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 1306 transitions, 33002 flow [2022-12-13 03:03:48,441 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 742 transitions, 18514 flow [2022-12-13 03:03:49,243 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:03:49,243 INFO L89 Accepts]: Start accepts. Operand has 95 places, 742 transitions, 18514 flow [2022-12-13 03:03:49,245 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:03:49,246 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:03:49,246 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 742 transitions, 18514 flow [2022-12-13 03:03:49,293 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 742 transitions, 18514 flow [2022-12-13 03:03:49,293 INFO L226 LiptonReduction]: Number of co-enabled transitions 3614 [2022-12-13 03:03:50,481 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 03:03:50,482 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1239 [2022-12-13 03:03:50,482 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 742 transitions, 18528 flow [2022-12-13 03:03:50,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-12-13 03:03:50,482 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:03:50,483 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:03:50,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 03:03:50,483 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:03:50,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:03:50,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1666275934, now seen corresponding path program 1 times [2022-12-13 03:03:50,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:03:50,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160271257] [2022-12-13 03:03:50,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:03:50,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:03:50,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:03:50,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:03:50,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:03:50,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160271257] [2022-12-13 03:03:50,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160271257] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:03:50,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:03:50,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 03:03:50,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327922355] [2022-12-13 03:03:50,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:03:50,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 03:03:50,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:03:50,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 03:03:50,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 03:03:50,597 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 44 [2022-12-13 03:03:50,597 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 742 transitions, 18528 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2022-12-13 03:03:50,597 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:03:50,597 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 44 [2022-12-13 03:03:50,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand