/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 --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix057_power.oepc_pso.oepc_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 06:19:33,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 06:19:33,684 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 06:19:33,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 06:19:33,723 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 06:19:33,726 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 06:19:33,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 06:19:33,733 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 06:19:33,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 06:19:33,744 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 06:19:33,744 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 06:19:33,745 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 06:19:33,745 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 06:19:33,746 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 06:19:33,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 06:19:33,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 06:19:33,747 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 06:19:33,748 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 06:19:33,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 06:19:33,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 06:19:33,751 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 06:19:33,756 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 06:19:33,757 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 06:19:33,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 06:19:33,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 06:19:33,764 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 06:19:33,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 06:19:33,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 06:19:33,765 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 06:19:33,766 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 06:19:33,766 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 06:19:33,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 06:19:33,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 06:19:33,767 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 06:19:33,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 06:19:33,768 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 06:19:33,768 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 06:19:33,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 06:19:33,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 06:19:33,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 06:19:33,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 06:19:33,771 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 06:19:33,796 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 06:19:33,796 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 06:19:33,798 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 06:19:33,799 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 06:19:33,799 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 06:19:33,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 06:19:33,800 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 06:19:33,800 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 06:19:33,800 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 06:19:33,800 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 06:19:33,801 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 06:19:33,801 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 06:19:33,801 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 06:19:33,801 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 06:19:33,801 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 06:19:33,801 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 06:19:33,801 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 06:19:33,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 06:19:33,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 06:19:33,802 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 06:19:33,802 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 06:19:33,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 06:19:33,802 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 06:19:33,802 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 06:19:33,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 06:19:33,802 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 06:19:33,802 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 06:19:33,803 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 06:19:33,803 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-13 06:19:34,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 06:19:34,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 06:19:34,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 06:19:34,141 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 06:19:34,142 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 06:19:34,143 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix057_power.oepc_pso.oepc_rmo.oepc.i [2022-12-13 06:19:35,183 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 06:19:35,466 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 06:19:35,467 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix057_power.oepc_pso.oepc_rmo.oepc.i [2022-12-13 06:19:35,486 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88daa820d/8c487c442c5e4e71acce8ed86b523810/FLAG20f4da28f [2022-12-13 06:19:35,500 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88daa820d/8c487c442c5e4e71acce8ed86b523810 [2022-12-13 06:19:35,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 06:19:35,503 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 06:19:35,504 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 06:19:35,504 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 06:19:35,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 06:19:35,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:19:35" (1/1) ... [2022-12-13 06:19:35,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a3ba7bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:19:35, skipping insertion in model container [2022-12-13 06:19:35,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:19:35" (1/1) ... [2022-12-13 06:19:35,513 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 06:19:35,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 06:19:35,712 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/mix057_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-12-13 06:19:35,870 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,873 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,873 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,873 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,874 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,879 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,879 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,880 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,881 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,881 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,881 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,882 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,882 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,887 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,887 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,888 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,900 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,900 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,900 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,908 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,908 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,910 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,910 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,910 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,915 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,916 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,916 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 06:19:35,926 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 06:19:35,936 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/mix057_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-12-13 06:19:35,952 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,953 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,953 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,954 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,954 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,955 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,955 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,955 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,956 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,956 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,956 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,956 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,957 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,958 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,958 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,958 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,959 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,959 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,959 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,959 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,959 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,961 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,961 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,961 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,961 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,961 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,962 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,965 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,966 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,967 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,967 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,967 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,970 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,971 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,971 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,972 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,972 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:19:35,973 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:19:35,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 06:19:36,000 INFO L208 MainTranslator]: Completed translation [2022-12-13 06:19:36,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:19:36 WrapperNode [2022-12-13 06:19:36,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 06:19:36,002 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 06:19:36,002 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 06:19:36,002 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 06:19:36,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:19:36" (1/1) ... [2022-12-13 06:19:36,023 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:19:36" (1/1) ... [2022-12-13 06:19:36,043 INFO L138 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 142 [2022-12-13 06:19:36,047 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 06:19:36,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 06:19:36,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 06:19:36,048 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 06:19:36,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:19:36" (1/1) ... [2022-12-13 06:19:36,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:19:36" (1/1) ... [2022-12-13 06:19:36,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:19:36" (1/1) ... [2022-12-13 06:19:36,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:19:36" (1/1) ... [2022-12-13 06:19:36,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:19:36" (1/1) ... [2022-12-13 06:19:36,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:19:36" (1/1) ... [2022-12-13 06:19:36,076 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:19:36" (1/1) ... [2022-12-13 06:19:36,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:19:36" (1/1) ... [2022-12-13 06:19:36,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 06:19:36,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 06:19:36,080 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 06:19:36,080 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 06:19:36,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:19:36" (1/1) ... [2022-12-13 06:19:36,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 06:19:36,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 06:19:36,155 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 06:19:36,196 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 06:19:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 06:19:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 06:19:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 06:19:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 06:19:36,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 06:19:36,236 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 06:19:36,236 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 06:19:36,236 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 06:19:36,236 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 06:19:36,236 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 06:19:36,237 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 06:19:36,237 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-13 06:19:36,237 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-13 06:19:36,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 06:19:36,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 06:19:36,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 06:19:36,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 06:19:36,239 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 06:19:36,435 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 06:19:36,436 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 06:19:36,859 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 06:19:36,997 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 06:19:36,997 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 06:19:37,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:19:37 BoogieIcfgContainer [2022-12-13 06:19:37,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 06:19:37,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 06:19:37,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 06:19:37,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 06:19:37,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:19:35" (1/3) ... [2022-12-13 06:19:37,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@986d83d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:19:37, skipping insertion in model container [2022-12-13 06:19:37,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:19:36" (2/3) ... [2022-12-13 06:19:37,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@986d83d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:19:37, skipping insertion in model container [2022-12-13 06:19:37,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:19:37" (3/3) ... [2022-12-13 06:19:37,015 INFO L112 eAbstractionObserver]: Analyzing ICFG mix057_power.oepc_pso.oepc_rmo.oepc.i [2022-12-13 06:19:37,033 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 06:19:37,033 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 06:19:37,034 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 06:19:37,078 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 06:19:37,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 127 transitions, 274 flow [2022-12-13 06:19:37,174 INFO L130 PetriNetUnfolder]: 2/123 cut-off events. [2022-12-13 06:19:37,174 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 06:19:37,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 123 events. 2/123 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 67 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2022-12-13 06:19:37,180 INFO L82 GeneralOperation]: Start removeDead. Operand has 138 places, 127 transitions, 274 flow [2022-12-13 06:19:37,185 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 123 transitions, 258 flow [2022-12-13 06:19:37,186 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:19:37,206 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 123 transitions, 258 flow [2022-12-13 06:19:37,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 123 transitions, 258 flow [2022-12-13 06:19:37,248 INFO L130 PetriNetUnfolder]: 2/123 cut-off events. [2022-12-13 06:19:37,249 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 06:19:37,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 123 events. 2/123 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 67 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2022-12-13 06:19:37,254 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 123 transitions, 258 flow [2022-12-13 06:19:37,256 INFO L226 LiptonReduction]: Number of co-enabled transitions 3058 [2022-12-13 06:19:42,400 INFO L241 LiptonReduction]: Total number of compositions: 96 [2022-12-13 06:19:42,420 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 06:19:42,427 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;@660d64de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 06:19:42,427 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-13 06:19:42,431 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2022-12-13 06:19:42,431 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 06:19:42,431 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:19:42,432 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 06:19:42,432 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 06:19:42,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:19:42,437 INFO L85 PathProgramCache]: Analyzing trace with hash 561802, now seen corresponding path program 1 times [2022-12-13 06:19:42,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:19:42,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405296205] [2022-12-13 06:19:42,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:19:42,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:19:42,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:19:42,749 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 06:19:42,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:19:42,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405296205] [2022-12-13 06:19:42,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405296205] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:19:42,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:19:42,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 06:19:42,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758054554] [2022-12-13 06:19:42,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:19:42,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 06:19:42,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:19:42,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 06:19:42,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 06:19:42,786 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 81 [2022-12-13 06:19:42,788 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 81 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 06:19:42,788 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:19:42,788 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 81 [2022-12-13 06:19:42,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:19:50,832 INFO L130 PetriNetUnfolder]: 66790/94452 cut-off events. [2022-12-13 06:19:50,833 INFO L131 PetriNetUnfolder]: For 148/148 co-relation queries the response was YES. [2022-12-13 06:19:51,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182741 conditions, 94452 events. 66790/94452 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 4409. Compared 694568 event pairs, 26656 based on Foata normal form. 0/60521 useless extension candidates. Maximal degree in co-relation 182729. Up to 73765 conditions per place. [2022-12-13 06:19:51,189 INFO L137 encePairwiseOnDemand]: 77/81 looper letters, 48 selfloop transitions, 2 changer transitions 71/136 dead transitions. [2022-12-13 06:19:51,189 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 136 transitions, 533 flow [2022-12-13 06:19:51,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 06:19:51,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 06:19:51,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 171 transitions. [2022-12-13 06:19:51,198 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7037037037037037 [2022-12-13 06:19:51,200 INFO L295 CegarLoopForPetriNet]: 94 programPoint places, 0 predicate places. [2022-12-13 06:19:51,201 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 136 transitions, 533 flow [2022-12-13 06:19:51,316 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 65 transitions, 251 flow [2022-12-13 06:19:51,835 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:19:51,836 INFO L89 Accepts]: Start accepts. Operand has 58 places, 65 transitions, 251 flow [2022-12-13 06:19:51,840 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:19:51,840 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:19:51,840 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 65 transitions, 251 flow [2022-12-13 06:19:51,850 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 65 transitions, 251 flow [2022-12-13 06:19:51,850 INFO L226 LiptonReduction]: Number of co-enabled transitions 992 [2022-12-13 06:19:53,057 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:19:53,059 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1224 [2022-12-13 06:19:53,059 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 65 transitions, 251 flow [2022-12-13 06:19:53,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 06:19:53,059 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:19:53,059 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:19:53,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 06:19:53,060 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 06:19:53,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:19:53,060 INFO L85 PathProgramCache]: Analyzing trace with hash 195712061, now seen corresponding path program 1 times [2022-12-13 06:19:53,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:19:53,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143581731] [2022-12-13 06:19:53,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:19:53,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:19:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:19:53,239 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 06:19:53,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:19:53,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143581731] [2022-12-13 06:19:53,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143581731] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:19:53,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:19:53,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 06:19:53,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960462941] [2022-12-13 06:19:53,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:19:53,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 06:19:53,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:19:53,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 06:19:53,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 06:19:53,242 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2022-12-13 06:19:53,243 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 65 transitions, 251 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 06:19:53,243 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:19:53,243 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2022-12-13 06:19:53,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:19:57,933 INFO L130 PetriNetUnfolder]: 37621/52288 cut-off events. [2022-12-13 06:19:57,934 INFO L131 PetriNetUnfolder]: For 5544/5544 co-relation queries the response was YES. [2022-12-13 06:19:58,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144632 conditions, 52288 events. 37621/52288 cut-off events. For 5544/5544 co-relation queries the response was YES. Maximal size of possible extension queue 1881. Compared 335079 event pairs, 2855 based on Foata normal form. 1250/45074 useless extension candidates. Maximal degree in co-relation 144617. Up to 36126 conditions per place. [2022-12-13 06:19:58,137 INFO L137 encePairwiseOnDemand]: 34/43 looper letters, 86 selfloop transitions, 12 changer transitions 2/111 dead transitions. [2022-12-13 06:19:58,137 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 111 transitions, 639 flow [2022-12-13 06:19:58,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 06:19:58,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 06:19:58,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 93 transitions. [2022-12-13 06:19:58,139 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7209302325581395 [2022-12-13 06:19:58,139 INFO L295 CegarLoopForPetriNet]: 94 programPoint places, -34 predicate places. [2022-12-13 06:19:58,139 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 111 transitions, 639 flow [2022-12-13 06:19:58,272 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 109 transitions, 631 flow [2022-12-13 06:19:58,487 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:19:58,487 INFO L89 Accepts]: Start accepts. Operand has 59 places, 109 transitions, 631 flow [2022-12-13 06:19:58,488 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:19:58,488 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:19:58,488 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 109 transitions, 631 flow [2022-12-13 06:19:58,492 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 109 transitions, 631 flow [2022-12-13 06:19:58,492 INFO L226 LiptonReduction]: Number of co-enabled transitions 1296 [2022-12-13 06:19:58,505 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:19:58,506 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 19 [2022-12-13 06:19:58,506 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 109 transitions, 631 flow [2022-12-13 06:19:58,506 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 06:19:58,506 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:19:58,506 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:19:58,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 06:19:58,507 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 06:19:58,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:19:58,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1772104124, now seen corresponding path program 1 times [2022-12-13 06:19:58,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:19:58,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955752485] [2022-12-13 06:19:58,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:19:58,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:19:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:19:58,621 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 06:19:58,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:19:58,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955752485] [2022-12-13 06:19:58,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955752485] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:19:58,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:19:58,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 06:19:58,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185367562] [2022-12-13 06:19:58,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:19:58,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 06:19:58,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:19:58,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 06:19:58,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 06:19:58,631 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 42 [2022-12-13 06:19:58,631 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 109 transitions, 631 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 06:19:58,631 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:19:58,631 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 42 [2022-12-13 06:19:58,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:20:01,524 INFO L130 PetriNetUnfolder]: 29276/41369 cut-off events. [2022-12-13 06:20:01,524 INFO L131 PetriNetUnfolder]: For 3170/3170 co-relation queries the response was YES. [2022-12-13 06:20:01,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155044 conditions, 41369 events. 29276/41369 cut-off events. For 3170/3170 co-relation queries the response was YES. Maximal size of possible extension queue 1563. Compared 261891 event pairs, 988 based on Foata normal form. 42/34630 useless extension candidates. Maximal degree in co-relation 155026. Up to 29851 conditions per place. [2022-12-13 06:20:01,854 INFO L137 encePairwiseOnDemand]: 33/42 looper letters, 134 selfloop transitions, 18 changer transitions 0/163 dead transitions. [2022-12-13 06:20:01,855 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 163 transitions, 1259 flow [2022-12-13 06:20:01,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 06:20:01,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 06:20:01,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 117 transitions. [2022-12-13 06:20:01,856 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6964285714285714 [2022-12-13 06:20:01,857 INFO L295 CegarLoopForPetriNet]: 94 programPoint places, -32 predicate places. [2022-12-13 06:20:01,857 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 163 transitions, 1259 flow [2022-12-13 06:20:02,020 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 163 transitions, 1259 flow [2022-12-13 06:20:02,234 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:20:02,234 INFO L89 Accepts]: Start accepts. Operand has 62 places, 163 transitions, 1259 flow [2022-12-13 06:20:02,235 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:20:02,235 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:20:02,235 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 163 transitions, 1259 flow [2022-12-13 06:20:02,239 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 163 transitions, 1259 flow [2022-12-13 06:20:02,239 INFO L226 LiptonReduction]: Number of co-enabled transitions 1726 [2022-12-13 06:20:02,251 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:20:02,252 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 18 [2022-12-13 06:20:02,252 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 163 transitions, 1259 flow [2022-12-13 06:20:02,252 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 06:20:02,252 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:20:02,252 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:20:02,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 06:20:02,253 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 06:20:02,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:20:02,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1772104341, now seen corresponding path program 1 times [2022-12-13 06:20:02,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:20:02,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050105397] [2022-12-13 06:20:02,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:20:02,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:20:02,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:20:02,412 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 06:20:02,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:20:02,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050105397] [2022-12-13 06:20:02,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050105397] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:20:02,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:20:02,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 06:20:02,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410448229] [2022-12-13 06:20:02,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:20:02,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 06:20:02,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:20:02,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 06:20:02,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 06:20:02,413 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 42 [2022-12-13 06:20:02,414 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 163 transitions, 1259 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 06:20:02,414 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:20:02,414 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 42 [2022-12-13 06:20:02,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:20:05,518 INFO L130 PetriNetUnfolder]: 28854/40788 cut-off events. [2022-12-13 06:20:05,518 INFO L131 PetriNetUnfolder]: For 3204/3204 co-relation queries the response was YES. [2022-12-13 06:20:05,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191661 conditions, 40788 events. 28854/40788 cut-off events. For 3204/3204 co-relation queries the response was YES. Maximal size of possible extension queue 1520. Compared 256653 event pairs, 1008 based on Foata normal form. 60/34125 useless extension candidates. Maximal degree in co-relation 191640. Up to 29524 conditions per place. [2022-12-13 06:20:05,771 INFO L137 encePairwiseOnDemand]: 33/42 looper letters, 207 selfloop transitions, 31 changer transitions 0/249 dead transitions. [2022-12-13 06:20:05,771 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 249 transitions, 2438 flow [2022-12-13 06:20:05,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 06:20:05,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 06:20:05,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 123 transitions. [2022-12-13 06:20:05,772 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7321428571428571 [2022-12-13 06:20:05,773 INFO L295 CegarLoopForPetriNet]: 94 programPoint places, -29 predicate places. [2022-12-13 06:20:05,773 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 249 transitions, 2438 flow [2022-12-13 06:20:05,969 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 249 transitions, 2438 flow [2022-12-13 06:20:06,377 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:20:06,378 INFO L89 Accepts]: Start accepts. Operand has 65 places, 249 transitions, 2438 flow [2022-12-13 06:20:06,379 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:20:06,379 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:20:06,379 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 249 transitions, 2438 flow [2022-12-13 06:20:06,403 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 249 transitions, 2438 flow [2022-12-13 06:20:06,403 INFO L226 LiptonReduction]: Number of co-enabled transitions 2264 [2022-12-13 06:20:06,416 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:20:06,417 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 40 [2022-12-13 06:20:06,417 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 249 transitions, 2438 flow [2022-12-13 06:20:06,417 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 06:20:06,418 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:20:06,418 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:20:06,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 06:20:06,418 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 06:20:06,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:20:06,418 INFO L85 PathProgramCache]: Analyzing trace with hash -899349258, now seen corresponding path program 1 times [2022-12-13 06:20:06,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:20:06,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94945604] [2022-12-13 06:20:06,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:20:06,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:20:06,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:20:06,560 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 06:20:06,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:20:06,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94945604] [2022-12-13 06:20:06,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94945604] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:20:06,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:20:06,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 06:20:06,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409426867] [2022-12-13 06:20:06,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:20:06,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 06:20:06,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:20:06,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 06:20:06,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 06:20:06,564 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 42 [2022-12-13 06:20:06,564 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 249 transitions, 2438 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 06:20:06,565 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:20:06,565 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 42 [2022-12-13 06:20:06,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:20:10,135 INFO L130 PetriNetUnfolder]: 28521/40330 cut-off events. [2022-12-13 06:20:10,136 INFO L131 PetriNetUnfolder]: For 3175/3175 co-relation queries the response was YES. [2022-12-13 06:20:10,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227867 conditions, 40330 events. 28521/40330 cut-off events. For 3175/3175 co-relation queries the response was YES. Maximal size of possible extension queue 1492. Compared 253223 event pairs, 824 based on Foata normal form. 50/33704 useless extension candidates. Maximal degree in co-relation 227843. Up to 29221 conditions per place. [2022-12-13 06:20:10,421 INFO L137 encePairwiseOnDemand]: 33/42 looper letters, 273 selfloop transitions, 43 changer transitions 0/327 dead transitions. [2022-12-13 06:20:10,421 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 327 transitions, 3848 flow [2022-12-13 06:20:10,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 06:20:10,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 06:20:10,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 119 transitions. [2022-12-13 06:20:10,423 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2022-12-13 06:20:10,425 INFO L295 CegarLoopForPetriNet]: 94 programPoint places, -26 predicate places. [2022-12-13 06:20:10,425 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 327 transitions, 3848 flow [2022-12-13 06:20:10,616 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 327 transitions, 3848 flow [2022-12-13 06:20:10,855 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:20:10,855 INFO L89 Accepts]: Start accepts. Operand has 68 places, 327 transitions, 3848 flow [2022-12-13 06:20:10,857 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:20:10,858 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:20:10,858 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 327 transitions, 3848 flow [2022-12-13 06:20:10,867 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 327 transitions, 3848 flow [2022-12-13 06:20:10,867 INFO L226 LiptonReduction]: Number of co-enabled transitions 2754 [2022-12-13 06:20:10,879 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:20:10,882 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 27 [2022-12-13 06:20:10,883 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 327 transitions, 3848 flow [2022-12-13 06:20:10,883 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 06:20:10,883 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:20:10,883 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:20:10,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 06:20:10,884 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 06:20:10,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:20:10,884 INFO L85 PathProgramCache]: Analyzing trace with hash -2110061033, now seen corresponding path program 1 times [2022-12-13 06:20:10,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:20:10,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908760334] [2022-12-13 06:20:10,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:20:10,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:20:10,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:20:10,993 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 06:20:10,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:20:10,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908760334] [2022-12-13 06:20:10,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908760334] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:20:10,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:20:10,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 06:20:10,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165899522] [2022-12-13 06:20:10,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:20:10,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 06:20:10,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:20:10,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 06:20:10,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 06:20:10,997 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 42 [2022-12-13 06:20:10,997 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 327 transitions, 3848 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 06:20:10,997 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:20:10,997 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 42 [2022-12-13 06:20:10,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:20:16,549 INFO L130 PetriNetUnfolder]: 41805/59746 cut-off events. [2022-12-13 06:20:16,549 INFO L131 PetriNetUnfolder]: For 4757/4757 co-relation queries the response was YES. [2022-12-13 06:20:16,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 393796 conditions, 59746 events. 41805/59746 cut-off events. For 4757/4757 co-relation queries the response was YES. Maximal size of possible extension queue 2320. Compared 405347 event pairs, 680 based on Foata normal form. 720/49722 useless extension candidates. Maximal degree in co-relation 393769. Up to 43739 conditions per place. [2022-12-13 06:20:16,944 INFO L137 encePairwiseOnDemand]: 33/42 looper letters, 338 selfloop transitions, 49 changer transitions 7/405 dead transitions. [2022-12-13 06:20:16,944 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 405 transitions, 5571 flow [2022-12-13 06:20:16,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 06:20:16,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 06:20:16,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 126 transitions. [2022-12-13 06:20:16,945 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.75 [2022-12-13 06:20:16,945 INFO L295 CegarLoopForPetriNet]: 94 programPoint places, -23 predicate places. [2022-12-13 06:20:16,945 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 405 transitions, 5571 flow [2022-12-13 06:20:17,186 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 71 places, 398 transitions, 5473 flow [2022-12-13 06:20:17,650 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:20:17,651 INFO L89 Accepts]: Start accepts. Operand has 71 places, 398 transitions, 5473 flow [2022-12-13 06:20:17,654 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:20:17,654 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:20:17,654 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 398 transitions, 5473 flow [2022-12-13 06:20:17,674 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 398 transitions, 5473 flow [2022-12-13 06:20:17,674 INFO L226 LiptonReduction]: Number of co-enabled transitions 3378 [2022-12-13 06:20:17,691 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:20:17,696 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 46 [2022-12-13 06:20:17,697 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 398 transitions, 5473 flow [2022-12-13 06:20:17,697 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 06:20:17,697 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:20:17,697 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:20:17,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 06:20:17,697 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 06:20:17,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:20:17,700 INFO L85 PathProgramCache]: Analyzing trace with hash -2109961089, now seen corresponding path program 1 times [2022-12-13 06:20:17,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:20:17,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480791887] [2022-12-13 06:20:17,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:20:17,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:20:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:20:17,863 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 06:20:17,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:20:17,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480791887] [2022-12-13 06:20:17,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480791887] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:20:17,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:20:17,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 06:20:17,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747572668] [2022-12-13 06:20:17,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:20:17,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 06:20:17,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:20:17,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 06:20:17,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 06:20:17,864 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2022-12-13 06:20:17,864 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 398 transitions, 5473 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 06:20:17,864 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:20:17,864 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2022-12-13 06:20:17,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:20:27,778 INFO L130 PetriNetUnfolder]: 70666/97162 cut-off events. [2022-12-13 06:20:27,778 INFO L131 PetriNetUnfolder]: For 219547/221345 co-relation queries the response was YES. [2022-12-13 06:20:28,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 675415 conditions, 97162 events. 70666/97162 cut-off events. For 219547/221345 co-relation queries the response was YES. Maximal size of possible extension queue 3697. Compared 644363 event pairs, 10379 based on Foata normal form. 1213/82947 useless extension candidates. Maximal degree in co-relation 675385. Up to 87632 conditions per place. [2022-12-13 06:20:28,475 INFO L137 encePairwiseOnDemand]: 28/42 looper letters, 486 selfloop transitions, 111 changer transitions 0/631 dead transitions. [2022-12-13 06:20:28,475 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 631 transitions, 9935 flow [2022-12-13 06:20:28,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 06:20:28,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 06:20:28,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 90 transitions. [2022-12-13 06:20:28,488 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2022-12-13 06:20:28,488 INFO L295 CegarLoopForPetriNet]: 94 programPoint places, -21 predicate places. [2022-12-13 06:20:28,488 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 631 transitions, 9935 flow [2022-12-13 06:20:28,891 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 631 transitions, 9935 flow [2022-12-13 06:20:29,655 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:20:29,655 INFO L89 Accepts]: Start accepts. Operand has 73 places, 631 transitions, 9935 flow [2022-12-13 06:20:29,658 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:20:29,658 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:20:29,658 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 631 transitions, 9935 flow [2022-12-13 06:20:29,705 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 631 transitions, 9935 flow [2022-12-13 06:20:29,705 INFO L226 LiptonReduction]: Number of co-enabled transitions 3524 [2022-12-13 06:20:29,734 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:20:29,735 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 80 [2022-12-13 06:20:29,735 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 631 transitions, 9935 flow [2022-12-13 06:20:29,735 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 06:20:29,735 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:20:29,735 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:20:29,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 06:20:29,735 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 06:20:29,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:20:29,735 INFO L85 PathProgramCache]: Analyzing trace with hash -226807880, now seen corresponding path program 1 times [2022-12-13 06:20:29,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:20:29,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417160216] [2022-12-13 06:20:29,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:20:29,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:20:29,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:20:29,881 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 06:20:29,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:20:29,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417160216] [2022-12-13 06:20:29,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417160216] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:20:29,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:20:29,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 06:20:29,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897598138] [2022-12-13 06:20:29,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:20:29,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 06:20:29,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:20:29,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 06:20:29,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 06:20:29,885 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 42 [2022-12-13 06:20:29,885 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 631 transitions, 9935 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 06:20:29,885 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:20:29,885 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 42 [2022-12-13 06:20:29,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:20:48,184 INFO L130 PetriNetUnfolder]: 109295/150512 cut-off events. [2022-12-13 06:20:48,184 INFO L131 PetriNetUnfolder]: For 460520/466371 co-relation queries the response was YES. [2022-12-13 06:20:48,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1161240 conditions, 150512 events. 109295/150512 cut-off events. For 460520/466371 co-relation queries the response was YES. Maximal size of possible extension queue 6093. Compared 1058582 event pairs, 16011 based on Foata normal form. 2745/127836 useless extension candidates. Maximal degree in co-relation 1161207. Up to 138266 conditions per place. [2022-12-13 06:20:49,305 INFO L137 encePairwiseOnDemand]: 39/42 looper letters, 711 selfloop transitions, 24 changer transitions 80/849 dead transitions. [2022-12-13 06:20:49,305 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 849 transitions, 15053 flow [2022-12-13 06:20:49,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 06:20:49,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 06:20:49,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2022-12-13 06:20:49,306 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7063492063492064 [2022-12-13 06:20:49,309 INFO L295 CegarLoopForPetriNet]: 94 programPoint places, -19 predicate places. [2022-12-13 06:20:49,309 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 849 transitions, 15053 flow [2022-12-13 06:20:49,787 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 769 transitions, 13613 flow [2022-12-13 06:20:52,332 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:20:52,333 INFO L89 Accepts]: Start accepts. Operand has 75 places, 769 transitions, 13613 flow [2022-12-13 06:20:52,335 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:20:52,336 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:20:52,336 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 769 transitions, 13613 flow [2022-12-13 06:20:52,542 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 769 transitions, 13613 flow [2022-12-13 06:20:52,543 INFO L226 LiptonReduction]: Number of co-enabled transitions 3890 [2022-12-13 06:20:52,671 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:20:52,674 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 342 [2022-12-13 06:20:52,674 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 769 transitions, 13613 flow [2022-12-13 06:20:52,674 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 06:20:52,674 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:20:52,674 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:20:52,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 06:20:52,674 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 06:20:52,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:20:52,675 INFO L85 PathProgramCache]: Analyzing trace with hash 171623198, now seen corresponding path program 1 times [2022-12-13 06:20:52,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:20:52,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254985980] [2022-12-13 06:20:52,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:20:52,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:20:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:20:53,068 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 06:20:53,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:20:53,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254985980] [2022-12-13 06:20:53,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254985980] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:20:53,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:20:53,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 06:20:53,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408332541] [2022-12-13 06:20:53,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:20:53,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 06:20:53,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:20:53,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 06:20:53,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 06:20:53,070 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 42 [2022-12-13 06:20:53,070 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 769 transitions, 13613 flow. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 06:20:53,070 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:20:53,071 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 42 [2022-12-13 06:20:53,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand