/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_power.oepc_pso.oepc_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 03:02:16,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 03:02:16,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 03:02:16,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 03:02:16,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 03:02:16,634 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 03:02:16,637 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 03:02:16,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 03:02:16,644 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 03:02:16,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 03:02:16,651 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 03:02:16,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 03:02:16,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 03:02:16,655 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 03:02:16,657 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 03:02:16,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 03:02:16,661 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 03:02:16,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 03:02:16,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 03:02:16,663 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 03:02:16,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 03:02:16,666 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 03:02:16,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 03:02:16,667 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 03:02:16,672 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 03:02:16,672 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 03:02:16,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 03:02:16,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 03:02:16,673 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 03:02:16,674 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 03:02:16,674 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 03:02:16,674 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 03:02:16,675 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 03:02:16,675 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 03:02:16,676 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 03:02:16,676 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 03:02:16,676 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 03:02:16,676 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 03:02:16,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 03:02:16,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 03:02:16,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 03:02:16,681 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 03:02:16,708 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 03:02:16,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 03:02:16,710 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 03:02:16,710 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 03:02:16,710 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 03:02:16,711 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 03:02:16,711 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 03:02:16,711 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 03:02:16,711 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 03:02:16,711 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 03:02:16,712 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 03:02:16,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 03:02:16,712 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 03:02:16,712 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 03:02:16,713 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 03:02:16,713 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 03:02:16,713 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 03:02:16,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 03:02:16,713 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 03:02:16,713 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 03:02:16,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 03:02:16,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 03:02:16,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 03:02:16,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 03:02:16,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 03:02:16,714 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 03:02:16,714 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 03:02:16,714 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 03:02:16,714 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-13 03:02:17,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 03:02:17,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 03:02:17,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 03:02:17,047 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 03:02:17,048 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 03:02:17,049 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix021_power.oepc_pso.oepc_rmo.oepc.i [2022-12-13 03:02:18,067 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 03:02:18,330 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 03:02:18,330 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix021_power.oepc_pso.oepc_rmo.oepc.i [2022-12-13 03:02:18,345 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3215132d/094ef928778242c6aad94c7ba95fa0ea/FLAG16f45c0de [2022-12-13 03:02:18,357 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3215132d/094ef928778242c6aad94c7ba95fa0ea [2022-12-13 03:02:18,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 03:02:18,360 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 03:02:18,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 03:02:18,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 03:02:18,363 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 03:02:18,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:02:18" (1/1) ... [2022-12-13 03:02:18,365 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cfd4445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:18, skipping insertion in model container [2022-12-13 03:02:18,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:02:18" (1/1) ... [2022-12-13 03:02:18,370 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 03:02:18,409 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 03:02:18,578 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_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-12-13 03:02:18,717 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,721 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,721 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,721 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,727 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,727 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,728 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,729 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,730 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,730 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,730 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,730 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,738 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,738 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,744 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,745 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,745 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,745 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,746 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,750 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,750 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,755 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,756 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,756 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,756 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,756 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,756 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,761 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,761 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,763 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,763 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,763 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,772 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,772 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,774 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,785 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,788 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 03:02:18,803 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 03:02:18,814 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_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-12-13 03:02:18,828 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,829 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,830 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,830 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,830 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,835 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,835 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,835 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,837 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,837 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,838 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,838 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,838 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,838 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,838 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,851 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,852 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,852 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,854 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,854 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:02:18,857 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:02:18,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 03:02:18,897 INFO L208 MainTranslator]: Completed translation [2022-12-13 03:02:18,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:18 WrapperNode [2022-12-13 03:02:18,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 03:02:18,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 03:02:18,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 03:02:18,899 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 03:02:18,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:18" (1/1) ... [2022-12-13 03:02:18,933 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:18" (1/1) ... [2022-12-13 03:02:18,952 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 144 [2022-12-13 03:02:18,953 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 03:02:18,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 03:02:18,953 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 03:02:18,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 03:02:18,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:18" (1/1) ... [2022-12-13 03:02:18,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:18" (1/1) ... [2022-12-13 03:02:18,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:18" (1/1) ... [2022-12-13 03:02:18,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:18" (1/1) ... [2022-12-13 03:02:18,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:18" (1/1) ... [2022-12-13 03:02:18,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:18" (1/1) ... [2022-12-13 03:02:18,985 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:18" (1/1) ... [2022-12-13 03:02:18,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:18" (1/1) ... [2022-12-13 03:02:18,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 03:02:18,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 03:02:18,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 03:02:18,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 03:02:18,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:18" (1/1) ... [2022-12-13 03:02:18,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 03:02:19,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 03:02:19,027 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 03:02:19,036 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 03:02:19,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 03:02:19,060 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 03:02:19,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 03:02:19,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 03:02:19,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 03:02:19,060 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 03:02:19,061 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 03:02:19,061 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 03:02:19,061 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 03:02:19,061 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 03:02:19,061 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 03:02:19,061 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-13 03:02:19,061 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-13 03:02:19,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 03:02:19,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 03:02:19,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 03:02:19,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 03:02:19,064 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 03:02:19,257 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 03:02:19,259 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 03:02:19,568 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 03:02:19,675 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 03:02:19,675 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 03:02:19,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:02:19 BoogieIcfgContainer [2022-12-13 03:02:19,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 03:02:19,679 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 03:02:19,679 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 03:02:19,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 03:02:19,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:02:18" (1/3) ... [2022-12-13 03:02:19,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7893930d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:02:19, skipping insertion in model container [2022-12-13 03:02:19,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:02:18" (2/3) ... [2022-12-13 03:02:19,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7893930d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:02:19, skipping insertion in model container [2022-12-13 03:02:19,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:02:19" (3/3) ... [2022-12-13 03:02:19,683 INFO L112 eAbstractionObserver]: Analyzing ICFG mix021_power.oepc_pso.oepc_rmo.oepc.i [2022-12-13 03:02:19,696 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 03:02:19,697 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 03:02:19,697 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 03:02:19,741 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 03:02:19,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 130 transitions, 280 flow [2022-12-13 03:02:19,814 INFO L130 PetriNetUnfolder]: 2/126 cut-off events. [2022-12-13 03:02:19,815 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:02:19,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 126 events. 2/126 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. 0/122 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2022-12-13 03:02:19,820 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 130 transitions, 280 flow [2022-12-13 03:02:19,825 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 137 places, 126 transitions, 264 flow [2022-12-13 03:02:19,826 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:02:19,842 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 126 transitions, 264 flow [2022-12-13 03:02:19,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 126 transitions, 264 flow [2022-12-13 03:02:19,873 INFO L130 PetriNetUnfolder]: 2/126 cut-off events. [2022-12-13 03:02:19,873 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:02:19,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 126 events. 2/126 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. 0/122 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2022-12-13 03:02:19,876 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 126 transitions, 264 flow [2022-12-13 03:02:19,877 INFO L226 LiptonReduction]: Number of co-enabled transitions 3164 [2022-12-13 03:02:24,910 INFO L241 LiptonReduction]: Total number of compositions: 99 [2022-12-13 03:02:24,921 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 03:02:24,925 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;@6283c3df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 03:02:24,925 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-13 03:02:24,927 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2022-12-13 03:02:24,927 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:02:24,927 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:02:24,928 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 03:02:24,928 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:02:24,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:02:24,931 INFO L85 PathProgramCache]: Analyzing trace with hash 568663, now seen corresponding path program 1 times [2022-12-13 03:02:24,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:02:24,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390677448] [2022-12-13 03:02:24,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:02:24,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:02:25,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:02:25,242 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 03:02:25,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:02:25,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390677448] [2022-12-13 03:02:25,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390677448] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:02:25,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:02:25,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 03:02:25,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883659626] [2022-12-13 03:02:25,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:02:25,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 03:02:25,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:02:25,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 03:02:25,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 03:02:25,275 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 83 [2022-12-13 03:02:25,277 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 83 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 03:02:25,277 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:02:25,277 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 83 [2022-12-13 03:02:25,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:02:32,375 INFO L130 PetriNetUnfolder]: 66790/97374 cut-off events. [2022-12-13 03:02:32,375 INFO L131 PetriNetUnfolder]: For 144/144 co-relation queries the response was YES. [2022-12-13 03:02:32,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185663 conditions, 97374 events. 66790/97374 cut-off events. For 144/144 co-relation queries the response was YES. Maximal size of possible extension queue 4514. Compared 790516 event pairs, 9970 based on Foata normal form. 0/63342 useless extension candidates. Maximal degree in co-relation 185651. Up to 73765 conditions per place. [2022-12-13 03:02:32,731 INFO L137 encePairwiseOnDemand]: 78/83 looper letters, 48 selfloop transitions, 2 changer transitions 71/137 dead transitions. [2022-12-13 03:02:32,731 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 137 transitions, 535 flow [2022-12-13 03:02:32,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 03:02:32,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 03:02:32,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 176 transitions. [2022-12-13 03:02:32,740 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7068273092369478 [2022-12-13 03:02:32,742 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, 0 predicate places. [2022-12-13 03:02:32,742 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 137 transitions, 535 flow [2022-12-13 03:02:32,847 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 66 transitions, 253 flow [2022-12-13 03:02:33,444 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:02:33,445 INFO L89 Accepts]: Start accepts. Operand has 59 places, 66 transitions, 253 flow [2022-12-13 03:02:33,448 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:02:33,449 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:02:33,449 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 66 transitions, 253 flow [2022-12-13 03:02:33,456 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 66 transitions, 253 flow [2022-12-13 03:02:33,456 INFO L226 LiptonReduction]: Number of co-enabled transitions 1066 [2022-12-13 03:02:41,333 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:02:41,334 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 7890 [2022-12-13 03:02:41,335 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 66 transitions, 253 flow [2022-12-13 03:02:41,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 03:02:41,335 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:02:41,335 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:02:41,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 03:02:41,335 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:02:41,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:02:41,336 INFO L85 PathProgramCache]: Analyzing trace with hash 486257866, now seen corresponding path program 1 times [2022-12-13 03:02:41,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:02:41,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498227820] [2022-12-13 03:02:41,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:02:41,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:02:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:02:41,589 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 03:02:41,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:02:41,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498227820] [2022-12-13 03:02:41,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498227820] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:02:41,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:02:41,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 03:02:41,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308038277] [2022-12-13 03:02:41,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:02:41,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 03:02:41,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:02:41,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 03:02:41,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 03:02:41,592 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 44 [2022-12-13 03:02:41,592 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 66 transitions, 253 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 03:02:41,592 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:02:41,593 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 44 [2022-12-13 03:02:41,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:02:45,867 INFO L130 PetriNetUnfolder]: 44491/61991 cut-off events. [2022-12-13 03:02:45,867 INFO L131 PetriNetUnfolder]: For 9739/9739 co-relation queries the response was YES. [2022-12-13 03:02:46,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169882 conditions, 61991 events. 44491/61991 cut-off events. For 9739/9739 co-relation queries the response was YES. Maximal size of possible extension queue 2111. Compared 407382 event pairs, 4833 based on Foata normal form. 1348/53561 useless extension candidates. Maximal degree in co-relation 169867. Up to 42072 conditions per place. [2022-12-13 03:02:46,188 INFO L137 encePairwiseOnDemand]: 35/44 looper letters, 89 selfloop transitions, 11 changer transitions 2/113 dead transitions. [2022-12-13 03:02:46,189 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 113 transitions, 647 flow [2022-12-13 03:02:46,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 03:02:46,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 03:02:46,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 95 transitions. [2022-12-13 03:02:46,190 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7196969696969697 [2022-12-13 03:02:46,191 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -34 predicate places. [2022-12-13 03:02:46,191 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 113 transitions, 647 flow [2022-12-13 03:02:46,369 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 111 transitions, 639 flow [2022-12-13 03:02:46,614 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:02:46,614 INFO L89 Accepts]: Start accepts. Operand has 60 places, 111 transitions, 639 flow [2022-12-13 03:02:46,615 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:02:46,615 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:02:46,615 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 111 transitions, 639 flow [2022-12-13 03:02:46,617 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 111 transitions, 639 flow [2022-12-13 03:02:46,617 INFO L226 LiptonReduction]: Number of co-enabled transitions 1304 [2022-12-13 03:02:46,632 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:02:46,633 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 19 [2022-12-13 03:02:46,633 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 111 transitions, 639 flow [2022-12-13 03:02:46,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 03:02:46,634 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:02:46,634 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:02:46,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 03:02:46,634 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:02:46,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:02:46,634 INFO L85 PathProgramCache]: Analyzing trace with hash -2105877137, now seen corresponding path program 1 times [2022-12-13 03:02:46,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:02:46,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732961818] [2022-12-13 03:02:46,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:02:46,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:02:46,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:02:46,765 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 03:02:46,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:02:46,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732961818] [2022-12-13 03:02:46,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732961818] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:02:46,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:02:46,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 03:02:46,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181105588] [2022-12-13 03:02:46,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:02:46,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 03:02:46,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:02:46,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 03:02:46,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 03:02:46,775 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2022-12-13 03:02:46,776 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 111 transitions, 639 flow. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 03:02:46,776 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:02:46,776 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2022-12-13 03:02:46,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:02:49,898 INFO L130 PetriNetUnfolder]: 34547/48799 cut-off events. [2022-12-13 03:02:49,899 INFO L131 PetriNetUnfolder]: For 5838/5838 co-relation queries the response was YES. [2022-12-13 03:02:50,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181799 conditions, 48799 events. 34547/48799 cut-off events. For 5838/5838 co-relation queries the response was YES. Maximal size of possible extension queue 1681. Compared 321380 event pairs, 1652 based on Foata normal form. 72/41045 useless extension candidates. Maximal degree in co-relation 181781. Up to 34715 conditions per place. [2022-12-13 03:02:50,201 INFO L137 encePairwiseOnDemand]: 34/43 looper letters, 141 selfloop transitions, 16 changer transitions 0/168 dead transitions. [2022-12-13 03:02:50,202 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 168 transitions, 1301 flow [2022-12-13 03:02:50,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 03:02:50,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 03:02:50,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 122 transitions. [2022-12-13 03:02:50,203 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7093023255813954 [2022-12-13 03:02:50,204 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -32 predicate places. [2022-12-13 03:02:50,204 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 168 transitions, 1301 flow [2022-12-13 03:02:50,378 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 168 transitions, 1301 flow [2022-12-13 03:02:50,580 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:02:50,581 INFO L89 Accepts]: Start accepts. Operand has 63 places, 168 transitions, 1301 flow [2022-12-13 03:02:50,581 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:02:50,581 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:02:50,582 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 168 transitions, 1301 flow [2022-12-13 03:02:50,585 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 168 transitions, 1301 flow [2022-12-13 03:02:50,585 INFO L226 LiptonReduction]: Number of co-enabled transitions 1742 [2022-12-13 03:02:50,598 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:02:50,599 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 19 [2022-12-13 03:02:50,599 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 168 transitions, 1301 flow [2022-12-13 03:02:50,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 03:02:50,600 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:02:50,600 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:02:50,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 03:02:50,600 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:02:50,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:02:50,600 INFO L85 PathProgramCache]: Analyzing trace with hash -2105874409, now seen corresponding path program 1 times [2022-12-13 03:02:50,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:02:50,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738814365] [2022-12-13 03:02:50,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:02:50,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:02:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:02:50,695 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 03:02:50,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:02:50,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738814365] [2022-12-13 03:02:50,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738814365] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:02:50,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:02:50,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 03:02:50,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636597634] [2022-12-13 03:02:50,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:02:50,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 03:02:50,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:02:50,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 03:02:50,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 03:02:50,697 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2022-12-13 03:02:50,697 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 168 transitions, 1301 flow. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 03:02:50,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:02:50,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2022-12-13 03:02:50,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:02:54,081 INFO L130 PetriNetUnfolder]: 33954/47951 cut-off events. [2022-12-13 03:02:54,081 INFO L131 PetriNetUnfolder]: For 5757/5757 co-relation queries the response was YES. [2022-12-13 03:02:54,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224227 conditions, 47951 events. 33954/47951 cut-off events. For 5757/5757 co-relation queries the response was YES. Maximal size of possible extension queue 1643. Compared 314173 event pairs, 1546 based on Foata normal form. 70/40302 useless extension candidates. Maximal degree in co-relation 224206. Up to 34135 conditions per place. [2022-12-13 03:02:54,406 INFO L137 encePairwiseOnDemand]: 34/43 looper letters, 190 selfloop transitions, 25 changer transitions 0/226 dead transitions. [2022-12-13 03:02:54,406 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 226 transitions, 2200 flow [2022-12-13 03:02:54,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 03:02:54,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 03:02:54,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 126 transitions. [2022-12-13 03:02:54,408 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7325581395348837 [2022-12-13 03:02:54,408 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -29 predicate places. [2022-12-13 03:02:54,408 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 226 transitions, 2200 flow [2022-12-13 03:02:54,599 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 226 transitions, 2200 flow [2022-12-13 03:02:54,820 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:02:54,820 INFO L89 Accepts]: Start accepts. Operand has 66 places, 226 transitions, 2200 flow [2022-12-13 03:02:54,821 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:02:54,821 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:02:54,821 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 226 transitions, 2200 flow [2022-12-13 03:02:54,827 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 226 transitions, 2200 flow [2022-12-13 03:02:54,827 INFO L226 LiptonReduction]: Number of co-enabled transitions 2114 [2022-12-13 03:02:54,842 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:02:54,843 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 23 [2022-12-13 03:02:54,843 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 226 transitions, 2200 flow [2022-12-13 03:02:54,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 03:02:54,843 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:02:54,843 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:02:54,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 03:02:54,843 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:02:54,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:02:54,844 INFO L85 PathProgramCache]: Analyzing trace with hash -857680878, now seen corresponding path program 1 times [2022-12-13 03:02:54,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:02:54,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592744109] [2022-12-13 03:02:54,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:02:54,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:02:54,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:02:54,938 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 03:02:54,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:02:54,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592744109] [2022-12-13 03:02:54,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592744109] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:02:54,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:02:54,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 03:02:54,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956037116] [2022-12-13 03:02:54,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:02:54,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 03:02:54,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:02:54,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 03:02:54,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 03:02:54,941 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2022-12-13 03:02:54,942 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 226 transitions, 2200 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 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 03:02:54,942 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:02:54,942 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2022-12-13 03:02:54,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:02:58,404 INFO L130 PetriNetUnfolder]: 32108/45371 cut-off events. [2022-12-13 03:02:58,404 INFO L131 PetriNetUnfolder]: For 5560/5560 co-relation queries the response was YES. [2022-12-13 03:02:58,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 255519 conditions, 45371 events. 32108/45371 cut-off events. For 5560/5560 co-relation queries the response was YES. Maximal size of possible extension queue 1511. Compared 287023 event pairs, 778 based on Foata normal form. 340/38346 useless extension candidates. Maximal degree in co-relation 255495. Up to 32502 conditions per place. [2022-12-13 03:02:58,742 INFO L137 encePairwiseOnDemand]: 34/43 looper letters, 278 selfloop transitions, 22 changer transitions 0/311 dead transitions. [2022-12-13 03:02:58,742 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 311 transitions, 3628 flow [2022-12-13 03:02:58,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 03:02:58,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 03:02:58,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 115 transitions. [2022-12-13 03:02:58,743 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6686046511627907 [2022-12-13 03:02:58,744 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -26 predicate places. [2022-12-13 03:02:58,744 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 311 transitions, 3628 flow [2022-12-13 03:02:59,124 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 311 transitions, 3628 flow [2022-12-13 03:02:59,399 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:02:59,400 INFO L89 Accepts]: Start accepts. Operand has 69 places, 311 transitions, 3628 flow [2022-12-13 03:02:59,401 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:02:59,401 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:02:59,401 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 311 transitions, 3628 flow [2022-12-13 03:02:59,410 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 311 transitions, 3628 flow [2022-12-13 03:02:59,410 INFO L226 LiptonReduction]: Number of co-enabled transitions 2660 [2022-12-13 03:02:59,421 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:02:59,421 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 22 [2022-12-13 03:02:59,421 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 311 transitions, 3628 flow [2022-12-13 03:02:59,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 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 03:02:59,422 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:02:59,422 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:02:59,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 03:02:59,422 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:02:59,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:02:59,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1239133449, now seen corresponding path program 1 times [2022-12-13 03:02:59,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:02:59,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400927352] [2022-12-13 03:02:59,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:02:59,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:02:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:02:59,532 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 03:02:59,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:02:59,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400927352] [2022-12-13 03:02:59,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400927352] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:02:59,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:02:59,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 03:02:59,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805050485] [2022-12-13 03:02:59,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:02:59,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 03:02:59,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:02:59,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 03:02:59,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 03:02:59,535 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2022-12-13 03:02:59,536 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 311 transitions, 3628 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 03:02:59,536 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:02:59,536 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2022-12-13 03:02:59,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:03:05,149 INFO L130 PetriNetUnfolder]: 46024/65743 cut-off events. [2022-12-13 03:03:05,149 INFO L131 PetriNetUnfolder]: For 8081/8081 co-relation queries the response was YES. [2022-12-13 03:03:05,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 432019 conditions, 65743 events. 46024/65743 cut-off events. For 8081/8081 co-relation queries the response was YES. Maximal size of possible extension queue 2252. Compared 446048 event pairs, 1006 based on Foata normal form. 720/54878 useless extension candidates. Maximal degree in co-relation 431992. Up to 48348 conditions per place. [2022-12-13 03:03:05,548 INFO L137 encePairwiseOnDemand]: 34/43 looper letters, 316 selfloop transitions, 37 changer transitions 37/401 dead transitions. [2022-12-13 03:03:05,548 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 401 transitions, 5483 flow [2022-12-13 03:03:05,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 03:03:05,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 03:03:05,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 129 transitions. [2022-12-13 03:03:05,550 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.75 [2022-12-13 03:03:05,550 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -23 predicate places. [2022-12-13 03:03:05,550 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 401 transitions, 5483 flow [2022-12-13 03:03:05,922 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 364 transitions, 4969 flow [2022-12-13 03:03:06,352 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:03:06,352 INFO L89 Accepts]: Start accepts. Operand has 72 places, 364 transitions, 4969 flow [2022-12-13 03:03:06,353 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:03:06,353 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:03:06,354 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 364 transitions, 4969 flow [2022-12-13 03:03:06,365 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 364 transitions, 4969 flow [2022-12-13 03:03:06,365 INFO L226 LiptonReduction]: Number of co-enabled transitions 3076 [2022-12-13 03:03:06,382 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:03:06,383 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 31 [2022-12-13 03:03:06,383 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 364 transitions, 4969 flow [2022-12-13 03:03:06,383 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 03:03:06,383 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:03:06,383 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:03:06,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 03:03:06,383 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:03:06,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:03:06,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1239281443, now seen corresponding path program 1 times [2022-12-13 03:03:06,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:03:06,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202228045] [2022-12-13 03:03:06,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:03:06,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:03:06,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:03:06,501 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 03:03:06,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:03:06,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202228045] [2022-12-13 03:03:06,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202228045] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:03:06,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:03:06,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 03:03:06,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118676200] [2022-12-13 03:03:06,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:03:06,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 03:03:06,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:03:06,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 03:03:06,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 03:03:06,503 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2022-12-13 03:03:06,503 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 364 transitions, 4969 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 03:03:06,503 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:03:06,503 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2022-12-13 03:03:06,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:03:17,806 INFO L130 PetriNetUnfolder]: 87691/120960 cut-off events. [2022-12-13 03:03:17,806 INFO L131 PetriNetUnfolder]: For 295352/300051 co-relation queries the response was YES. [2022-12-13 03:03:18,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 838745 conditions, 120960 events. 87691/120960 cut-off events. For 295352/300051 co-relation queries the response was YES. Maximal size of possible extension queue 4528. Compared 824629 event pairs, 11268 based on Foata normal form. 8184/109152 useless extension candidates. Maximal degree in co-relation 838715. Up to 86392 conditions per place. [2022-12-13 03:03:18,672 INFO L137 encePairwiseOnDemand]: 28/43 looper letters, 428 selfloop transitions, 107 changer transitions 439/1013 dead transitions. [2022-12-13 03:03:18,672 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 1013 transitions, 15901 flow [2022-12-13 03:03:18,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 03:03:18,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 03:03:18,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 159 transitions. [2022-12-13 03:03:18,673 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7395348837209302 [2022-12-13 03:03:18,674 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -19 predicate places. [2022-12-13 03:03:18,674 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 1013 transitions, 15901 flow [2022-12-13 03:03:19,098 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 574 transitions, 8973 flow [2022-12-13 03:03:19,946 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:03:19,946 INFO L89 Accepts]: Start accepts. Operand has 74 places, 574 transitions, 8973 flow [2022-12-13 03:03:19,948 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:03:19,948 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:03:19,948 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 574 transitions, 8973 flow [2022-12-13 03:03:19,976 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 574 transitions, 8973 flow [2022-12-13 03:03:19,976 INFO L226 LiptonReduction]: Number of co-enabled transitions 3074 [2022-12-13 03:03:20,008 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:03:20,009 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 63 [2022-12-13 03:03:20,009 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 574 transitions, 8973 flow [2022-12-13 03:03:20,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 03:03:20,009 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:03:20,009 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:03:20,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 03:03:20,010 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:03:20,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:03:20,010 INFO L85 PathProgramCache]: Analyzing trace with hash 474288971, now seen corresponding path program 1 times [2022-12-13 03:03:20,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:03:20,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149352940] [2022-12-13 03:03:20,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:03:20,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:03:20,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:03:20,104 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 03:03:20,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:03:20,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149352940] [2022-12-13 03:03:20,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149352940] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:03:20,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:03:20,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 03:03:20,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285810593] [2022-12-13 03:03:20,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:03:20,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 03:03:20,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:03:20,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 03:03:20,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 03:03:20,106 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2022-12-13 03:03:20,107 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 574 transitions, 8973 flow. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 03:03:20,107 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:03:20,107 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2022-12-13 03:03:20,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:03:36,370 INFO L130 PetriNetUnfolder]: 103724/142555 cut-off events. [2022-12-13 03:03:36,371 INFO L131 PetriNetUnfolder]: For 432524/436867 co-relation queries the response was YES. [2022-12-13 03:03:36,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1099973 conditions, 142555 events. 103724/142555 cut-off events. For 432524/436867 co-relation queries the response was YES. Maximal size of possible extension queue 5110. Compared 976244 event pairs, 18158 based on Foata normal form. 2240/120829 useless extension candidates. Maximal degree in co-relation 1099940. Up to 129430 conditions per place. [2022-12-13 03:03:37,293 INFO L137 encePairwiseOnDemand]: 40/43 looper letters, 593 selfloop transitions, 24 changer transitions 80/732 dead transitions. [2022-12-13 03:03:37,293 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 732 transitions, 12911 flow [2022-12-13 03:03:37,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 03:03:37,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 03:03:37,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 96 transitions. [2022-12-13 03:03:37,294 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7441860465116279 [2022-12-13 03:03:37,295 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -19 predicate places. [2022-12-13 03:03:37,295 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 732 transitions, 12911 flow [2022-12-13 03:03:37,818 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 652 transitions, 11469 flow [2022-12-13 03:03:38,744 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:03:38,744 INFO L89 Accepts]: Start accepts. Operand has 76 places, 652 transitions, 11469 flow [2022-12-13 03:03:38,746 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:03:38,746 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:03:38,746 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 652 transitions, 11469 flow [2022-12-13 03:03:38,777 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 652 transitions, 11469 flow [2022-12-13 03:03:38,777 INFO L226 LiptonReduction]: Number of co-enabled transitions 3292 [2022-12-13 03:03:38,816 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:03:38,817 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 73 [2022-12-13 03:03:38,817 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 652 transitions, 11469 flow [2022-12-13 03:03:38,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 03:03:38,817 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:03:38,817 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:03:38,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 03:03:38,817 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 03:03:38,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:03:38,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1051127747, now seen corresponding path program 1 times [2022-12-13 03:03:38,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:03:38,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647148460] [2022-12-13 03:03:38,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:03:38,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:03:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:03:38,938 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 03:03:38,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:03:38,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647148460] [2022-12-13 03:03:38,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647148460] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:03:38,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:03:38,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 03:03:38,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016764699] [2022-12-13 03:03:38,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:03:38,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 03:03:38,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:03:38,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 03:03:38,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 03:03:38,939 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2022-12-13 03:03:38,940 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 652 transitions, 11469 flow. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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 03:03:38,940 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:03:38,940 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2022-12-13 03:03:38,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand