/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-SemanticLbe.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/mix018_power.oepc_pso.oepc_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 21:33:46,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 21:33:46,684 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 21:33:46,713 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 21:33:46,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 21:33:46,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 21:33:46,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 21:33:46,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 21:33:46,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 21:33:46,728 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 21:33:46,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 21:33:46,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 21:33:46,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 21:33:46,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 21:33:46,734 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 21:33:46,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 21:33:46,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 21:33:46,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 21:33:46,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 21:33:46,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 21:33:46,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 21:33:46,746 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 21:33:46,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 21:33:46,747 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 21:33:46,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 21:33:46,752 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 21:33:46,752 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 21:33:46,753 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 21:33:46,754 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 21:33:46,754 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 21:33:46,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 21:33:46,755 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 21:33:46,757 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 21:33:46,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 21:33:46,757 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 21:33:46,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 21:33:46,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 21:33:46,758 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 21:33:46,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 21:33:46,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 21:33:46,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 21:33:46,760 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-SemanticLbe.epf [2022-12-12 21:33:46,780 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 21:33:46,780 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 21:33:46,781 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 21:33:46,781 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 21:33:46,782 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 21:33:46,782 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 21:33:46,782 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 21:33:46,782 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 21:33:46,782 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 21:33:46,783 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 21:33:46,783 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 21:33:46,783 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 21:33:46,783 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 21:33:46,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 21:33:46,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 21:33:46,784 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 21:33:46,784 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 21:33:46,784 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 21:33:46,784 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 21:33:46,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 21:33:46,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 21:33:46,784 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 21:33:46,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 21:33:46,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:33:46,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 21:33:46,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 21:33:46,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 21:33:46,785 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 21:33:46,785 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 21:33:46,790 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 21:33:46,791 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 21:33:47,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 21:33:47,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 21:33:47,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 21:33:47,064 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 21:33:47,064 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 21:33:47,065 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix018_power.oepc_pso.oepc_rmo.oepc.i [2022-12-12 21:33:48,162 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 21:33:48,414 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 21:33:48,414 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix018_power.oepc_pso.oepc_rmo.oepc.i [2022-12-12 21:33:48,426 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c9616475/ce6ec9638c8048ecb605ea5dfaffb454/FLAGda86ff1ba [2022-12-12 21:33:48,436 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c9616475/ce6ec9638c8048ecb605ea5dfaffb454 [2022-12-12 21:33:48,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 21:33:48,439 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 21:33:48,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 21:33:48,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 21:33:48,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 21:33:48,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:33:48" (1/1) ... [2022-12-12 21:33:48,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ac79219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:33:48, skipping insertion in model container [2022-12-12 21:33:48,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:33:48" (1/1) ... [2022-12-12 21:33:48,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 21:33:48,475 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 21:33:48,606 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/mix018_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-12-12 21:33:48,744 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,747 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,747 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,748 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,748 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,752 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,753 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,753 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,754 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,754 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,755 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,755 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,755 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,760 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,760 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,761 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,764 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,765 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,765 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,765 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,765 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,769 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,769 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,770 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,771 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,771 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,771 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,771 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,772 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,787 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,788 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,788 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,788 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,793 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,793 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,795 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,795 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,796 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:33:48,807 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 21:33:48,816 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/mix018_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-12-12 21:33:48,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,855 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,855 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,856 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,857 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,857 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,857 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,857 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,857 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,863 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,864 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,864 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,865 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,865 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,865 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,865 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,865 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,870 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,871 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,871 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,871 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,872 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,874 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,874 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,875 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,875 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,876 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:33:48,876 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:33:48,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:33:48,912 INFO L208 MainTranslator]: Completed translation [2022-12-12 21:33:48,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:33:48 WrapperNode [2022-12-12 21:33:48,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 21:33:48,915 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 21:33:48,915 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 21:33:48,915 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 21:33:48,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:33:48" (1/1) ... [2022-12-12 21:33:48,935 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:33:48" (1/1) ... [2022-12-12 21:33:48,956 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 145 [2022-12-12 21:33:48,956 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 21:33:48,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 21:33:48,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 21:33:48,957 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 21:33:48,963 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:33:48" (1/1) ... [2022-12-12 21:33:48,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:33:48" (1/1) ... [2022-12-12 21:33:48,966 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:33:48" (1/1) ... [2022-12-12 21:33:48,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:33:48" (1/1) ... [2022-12-12 21:33:48,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:33:48" (1/1) ... [2022-12-12 21:33:48,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:33:48" (1/1) ... [2022-12-12 21:33:48,996 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:33:48" (1/1) ... [2022-12-12 21:33:48,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:33:48" (1/1) ... [2022-12-12 21:33:48,999 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 21:33:49,000 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 21:33:49,000 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 21:33:49,000 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 21:33:49,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:33:48" (1/1) ... [2022-12-12 21:33:49,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:33:49,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 21:33:49,059 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) [2022-12-12 21:33:49,082 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 [2022-12-12 21:33:49,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 21:33:49,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 21:33:49,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 21:33:49,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 21:33:49,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 21:33:49,105 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-12 21:33:49,105 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-12 21:33:49,105 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-12 21:33:49,105 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-12 21:33:49,105 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-12 21:33:49,106 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-12 21:33:49,106 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-12 21:33:49,106 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-12 21:33:49,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 21:33:49,106 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 21:33:49,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 21:33:49,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 21:33:49,107 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 21:33:49,222 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 21:33:49,224 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 21:33:49,542 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 21:33:49,657 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 21:33:49,657 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 21:33:49,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:33:49 BoogieIcfgContainer [2022-12-12 21:33:49,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 21:33:49,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 21:33:49,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 21:33:49,664 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 21:33:49,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 09:33:48" (1/3) ... [2022-12-12 21:33:49,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dbfd0eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:33:49, skipping insertion in model container [2022-12-12 21:33:49,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:33:48" (2/3) ... [2022-12-12 21:33:49,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dbfd0eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:33:49, skipping insertion in model container [2022-12-12 21:33:49,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:33:49" (3/3) ... [2022-12-12 21:33:49,668 INFO L112 eAbstractionObserver]: Analyzing ICFG mix018_power.oepc_pso.oepc_rmo.oepc.i [2022-12-12 21:33:49,681 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 21:33:49,682 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-12 21:33:49,682 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 21:33:49,727 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 21:33:49,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 131 transitions, 282 flow [2022-12-12 21:33:49,815 INFO L130 PetriNetUnfolder]: 2/127 cut-off events. [2022-12-12 21:33:49,816 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:33:49,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 127 events. 2/127 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 68 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2022-12-12 21:33:49,823 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 131 transitions, 282 flow [2022-12-12 21:33:49,829 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 127 transitions, 266 flow [2022-12-12 21:33:49,830 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 21:33:49,853 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 138 places, 127 transitions, 266 flow [2022-12-12 21:33:49,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 127 transitions, 266 flow [2022-12-12 21:33:49,895 INFO L130 PetriNetUnfolder]: 2/127 cut-off events. [2022-12-12 21:33:49,898 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:33:49,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 127 events. 2/127 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 68 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2022-12-12 21:33:49,901 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 138 places, 127 transitions, 266 flow [2022-12-12 21:33:49,901 INFO L226 LiptonReduction]: Number of co-enabled transitions 3164 [2022-12-12 21:33:55,119 INFO L241 LiptonReduction]: Total number of compositions: 100 [2022-12-12 21:33:55,145 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 21:33:55,152 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=PETRI_NET, 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;@64ff82dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 21:33:55,152 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-12 21:33:55,160 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2022-12-12 21:33:55,160 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:33:55,160 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:33:55,161 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-12 21:33:55,161 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:33:55,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:33:55,165 INFO L85 PathProgramCache]: Analyzing trace with hash 565729, now seen corresponding path program 1 times [2022-12-12 21:33:55,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:33:55,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719699947] [2022-12-12 21:33:55,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:33:55,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:33:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:33:55,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:33:55,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:33:55,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719699947] [2022-12-12 21:33:55,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719699947] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:33:55,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:33:55,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 21:33:55,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269295597] [2022-12-12 21:33:55,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:33:55,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:33:55,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:33:55,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:33:55,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:33:55,530 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 82 [2022-12-12 21:33:55,532 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 82 transitions, 176 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) [2022-12-12 21:33:55,532 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:33:55,532 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 82 [2022-12-12 21:33:55,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:34:03,139 INFO L130 PetriNetUnfolder]: 66790/97374 cut-off events. [2022-12-12 21:34:03,139 INFO L131 PetriNetUnfolder]: For 144/144 co-relation queries the response was YES. [2022-12-12 21:34:03,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185663 conditions, 97374 events. 66790/97374 cut-off events. For 144/144 co-relation queries the response was YES. Maximal size of possible extension queue 4514. Compared 788065 event pairs, 9970 based on Foata normal form. 0/63342 useless extension candidates. Maximal degree in co-relation 185651. Up to 73765 conditions per place. [2022-12-12 21:34:03,494 INFO L137 encePairwiseOnDemand]: 78/82 looper letters, 48 selfloop transitions, 2 changer transitions 71/137 dead transitions. [2022-12-12 21:34:03,494 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 137 transitions, 535 flow [2022-12-12 21:34:03,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:34:03,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:34:03,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 174 transitions. [2022-12-12 21:34:03,505 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7073170731707317 [2022-12-12 21:34:03,508 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, 0 predicate places. [2022-12-12 21:34:03,508 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 137 transitions, 535 flow [2022-12-12 21:34:03,610 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 66 transitions, 253 flow [2022-12-12 21:34:03,612 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 66 transitions, 253 flow [2022-12-12 21:34:03,612 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) [2022-12-12 21:34:03,612 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:34:03,613 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:34:03,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 21:34:03,613 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)] === [2022-12-12 21:34:03,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:34:03,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1290599711, now seen corresponding path program 1 times [2022-12-12 21:34:03,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:34:03,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233913061] [2022-12-12 21:34:03,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:34:03,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:34:03,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:34:03,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:34:03,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:34:03,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233913061] [2022-12-12 21:34:03,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233913061] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:34:03,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:34:03,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 21:34:03,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194282746] [2022-12-12 21:34:03,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:34:03,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:34:03,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:34:03,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:34:03,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:34:03,932 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 82 [2022-12-12 21:34:03,933 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 66 transitions, 253 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2022-12-12 21:34:03,933 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:34:03,933 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 82 [2022-12-12 21:34:03,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:34:08,167 INFO L130 PetriNetUnfolder]: 39917/55913 cut-off events. [2022-12-12 21:34:08,167 INFO L131 PetriNetUnfolder]: For 8130/8130 co-relation queries the response was YES. [2022-12-12 21:34:08,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153240 conditions, 55913 events. 39917/55913 cut-off events. For 8130/8130 co-relation queries the response was YES. Maximal size of possible extension queue 1831. Compared 359735 event pairs, 10669 based on Foata normal form. 1016/48009 useless extension candidates. Maximal degree in co-relation 153225. Up to 39733 conditions per place. [2022-12-12 21:34:08,523 INFO L137 encePairwiseOnDemand]: 74/82 looper letters, 82 selfloop transitions, 8 changer transitions 2/103 dead transitions. [2022-12-12 21:34:08,524 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 103 transitions, 587 flow [2022-12-12 21:34:08,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:34:08,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:34:08,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 98 transitions. [2022-12-12 21:34:08,528 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3983739837398374 [2022-12-12 21:34:08,529 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -34 predicate places. [2022-12-12 21:34:08,529 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 103 transitions, 587 flow [2022-12-12 21:34:08,715 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 101 transitions, 579 flow [2022-12-12 21:34:08,715 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 101 transitions, 579 flow [2022-12-12 21:34:08,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2022-12-12 21:34:08,715 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:34:08,715 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:34:08,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 21:34:08,716 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)] === [2022-12-12 21:34:08,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:34:08,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1353883306, now seen corresponding path program 1 times [2022-12-12 21:34:08,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:34:08,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355695191] [2022-12-12 21:34:08,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:34:08,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:34:08,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:34:08,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:34:08,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:34:08,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355695191] [2022-12-12 21:34:08,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355695191] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:34:08,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:34:08,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:34:08,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393285581] [2022-12-12 21:34:08,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:34:08,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:34:08,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:34:08,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:34:08,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:34:08,888 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 82 [2022-12-12 21:34:08,888 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 101 transitions, 579 flow. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2022-12-12 21:34:08,888 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:34:08,888 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 82 [2022-12-12 21:34:08,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:34:12,002 INFO L130 PetriNetUnfolder]: 29529/41745 cut-off events. [2022-12-12 21:34:12,003 INFO L131 PetriNetUnfolder]: For 5202/5202 co-relation queries the response was YES. [2022-12-12 21:34:12,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156167 conditions, 41745 events. 29529/41745 cut-off events. For 5202/5202 co-relation queries the response was YES. Maximal size of possible extension queue 1337. Compared 260133 event pairs, 1643 based on Foata normal form. 408/35309 useless extension candidates. Maximal degree in co-relation 156149. Up to 31437 conditions per place. [2022-12-12 21:34:12,311 INFO L137 encePairwiseOnDemand]: 74/82 looper letters, 124 selfloop transitions, 8 changer transitions 0/143 dead transitions. [2022-12-12 21:34:12,312 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 143 transitions, 1085 flow [2022-12-12 21:34:12,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 21:34:12,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 21:34:12,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 117 transitions. [2022-12-12 21:34:12,313 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3567073170731707 [2022-12-12 21:34:12,313 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -32 predicate places. [2022-12-12 21:34:12,314 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 143 transitions, 1085 flow [2022-12-12 21:34:12,498 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 143 transitions, 1085 flow [2022-12-12 21:34:12,498 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 143 transitions, 1085 flow [2022-12-12 21:34:12,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2022-12-12 21:34:12,499 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:34:12,499 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:34:12,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 21:34:12,499 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)] === [2022-12-12 21:34:12,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:34:12,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1071060884, now seen corresponding path program 1 times [2022-12-12 21:34:12,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:34:12,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98828623] [2022-12-12 21:34:12,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:34:12,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:34:12,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:34:12,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:34:12,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:34:12,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98828623] [2022-12-12 21:34:12,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98828623] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:34:12,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:34:12,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:34:12,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393522722] [2022-12-12 21:34:12,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:34:12,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:34:12,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:34:12,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:34:12,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:34:12,601 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 82 [2022-12-12 21:34:12,601 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 143 transitions, 1085 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) [2022-12-12 21:34:12,601 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:34:12,602 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 82 [2022-12-12 21:34:12,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:34:15,936 INFO L130 PetriNetUnfolder]: 29025/41031 cut-off events. [2022-12-12 21:34:15,936 INFO L131 PetriNetUnfolder]: For 5043/5043 co-relation queries the response was YES. [2022-12-12 21:34:16,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192448 conditions, 41031 events. 29025/41031 cut-off events. For 5043/5043 co-relation queries the response was YES. Maximal size of possible extension queue 1307. Compared 255345 event pairs, 1595 based on Foata normal form. 60/34343 useless extension candidates. Maximal degree in co-relation 192427. Up to 30917 conditions per place. [2022-12-12 21:34:16,232 INFO L137 encePairwiseOnDemand]: 74/82 looper letters, 169 selfloop transitions, 20 changer transitions 0/200 dead transitions. [2022-12-12 21:34:16,232 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 200 transitions, 1922 flow [2022-12-12 21:34:16,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 21:34:16,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 21:34:16,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 128 transitions. [2022-12-12 21:34:16,233 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3902439024390244 [2022-12-12 21:34:16,234 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -29 predicate places. [2022-12-12 21:34:16,234 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 200 transitions, 1922 flow [2022-12-12 21:34:16,421 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 200 transitions, 1922 flow [2022-12-12 21:34:16,421 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 200 transitions, 1922 flow [2022-12-12 21:34:16,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2022-12-12 21:34:16,422 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:34:16,422 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:34:16,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 21:34:16,422 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)] === [2022-12-12 21:34:16,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:34:16,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1156893533, now seen corresponding path program 1 times [2022-12-12 21:34:16,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:34:16,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620010141] [2022-12-12 21:34:16,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:34:16,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:34:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:34:16,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:34:16,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:34:16,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620010141] [2022-12-12 21:34:16,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620010141] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:34:16,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:34:16,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:34:16,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892095430] [2022-12-12 21:34:16,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:34:16,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:34:16,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:34:16,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:34:16,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:34:16,530 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 82 [2022-12-12 21:34:16,530 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 200 transitions, 1922 flow. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:34:16,530 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:34:16,530 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 82 [2022-12-12 21:34:16,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:34:21,792 INFO L130 PetriNetUnfolder]: 47909/65255 cut-off events. [2022-12-12 21:34:21,793 INFO L131 PetriNetUnfolder]: For 80054/81618 co-relation queries the response was YES. [2022-12-12 21:34:21,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345253 conditions, 65255 events. 47909/65255 cut-off events. For 80054/81618 co-relation queries the response was YES. Maximal size of possible extension queue 2132. Compared 394532 event pairs, 7181 based on Foata normal form. 727/56395 useless extension candidates. Maximal degree in co-relation 345229. Up to 57221 conditions per place. [2022-12-12 21:34:22,283 INFO L137 encePairwiseOnDemand]: 68/82 looper letters, 236 selfloop transitions, 55 changer transitions 0/317 dead transitions. [2022-12-12 21:34:22,283 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 317 transitions, 3669 flow [2022-12-12 21:34:22,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:34:22,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:34:22,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2022-12-12 21:34:22,289 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4024390243902439 [2022-12-12 21:34:22,290 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -27 predicate places. [2022-12-12 21:34:22,290 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 317 transitions, 3669 flow [2022-12-12 21:34:22,634 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 317 transitions, 3669 flow [2022-12-12 21:34:22,634 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 317 transitions, 3669 flow [2022-12-12 21:34:22,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:34:22,635 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:34:22,635 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:34:22,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 21:34:22,635 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)] === [2022-12-12 21:34:22,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:34:22,635 INFO L85 PathProgramCache]: Analyzing trace with hash 924450094, now seen corresponding path program 1 times [2022-12-12 21:34:22,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:34:22,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716734441] [2022-12-12 21:34:22,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:34:22,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:34:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:34:22,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:34:22,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:34:22,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716734441] [2022-12-12 21:34:22,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716734441] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:34:22,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:34:22,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:34:22,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877275039] [2022-12-12 21:34:22,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:34:22,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:34:22,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:34:22,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:34:22,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:34:22,794 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 82 [2022-12-12 21:34:22,794 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 317 transitions, 3669 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2022-12-12 21:34:22,794 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:34:22,794 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 82 [2022-12-12 21:34:22,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:34:30,853 INFO L130 PetriNetUnfolder]: 63679/87056 cut-off events. [2022-12-12 21:34:30,853 INFO L131 PetriNetUnfolder]: For 166895/168945 co-relation queries the response was YES. [2022-12-12 21:34:31,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 526329 conditions, 87056 events. 63679/87056 cut-off events. For 166895/168945 co-relation queries the response was YES. Maximal size of possible extension queue 2794. Compared 548997 event pairs, 9651 based on Foata normal form. 2161/75855 useless extension candidates. Maximal degree in co-relation 526302. Up to 76795 conditions per place. [2022-12-12 21:34:31,414 INFO L137 encePairwiseOnDemand]: 79/82 looper letters, 327 selfloop transitions, 13 changer transitions 10/379 dead transitions. [2022-12-12 21:34:31,414 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 379 transitions, 5125 flow [2022-12-12 21:34:31,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:34:31,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:34:31,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2022-12-12 21:34:31,416 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4024390243902439 [2022-12-12 21:34:31,418 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -25 predicate places. [2022-12-12 21:34:31,418 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 379 transitions, 5125 flow [2022-12-12 21:34:31,693 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 369 transitions, 4985 flow [2022-12-12 21:34:31,693 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 369 transitions, 4985 flow [2022-12-12 21:34:31,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2022-12-12 21:34:31,695 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:34:31,695 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:34:31,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 21:34:31,695 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)] === [2022-12-12 21:34:31,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:34:31,696 INFO L85 PathProgramCache]: Analyzing trace with hash 782448882, now seen corresponding path program 1 times [2022-12-12 21:34:31,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:34:31,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75273312] [2022-12-12 21:34:31,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:34:31,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:34:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:34:31,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:34:31,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:34:31,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75273312] [2022-12-12 21:34:31,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75273312] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:34:31,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:34:31,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 21:34:31,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698936536] [2022-12-12 21:34:31,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:34:31,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:34:31,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:34:31,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:34:31,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:34:31,880 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 82 [2022-12-12 21:34:31,880 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 369 transitions, 4985 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2022-12-12 21:34:31,881 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:34:31,881 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 82 [2022-12-12 21:34:31,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:34:37,891 INFO L130 PetriNetUnfolder]: 39922/57710 cut-off events. [2022-12-12 21:34:37,892 INFO L131 PetriNetUnfolder]: For 129999/133257 co-relation queries the response was YES. [2022-12-12 21:34:38,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401007 conditions, 57710 events. 39922/57710 cut-off events. For 129999/133257 co-relation queries the response was YES. Maximal size of possible extension queue 2127. Compared 392303 event pairs, 4090 based on Foata normal form. 3585/52878 useless extension candidates. Maximal degree in co-relation 400977. Up to 50220 conditions per place. [2022-12-12 21:34:38,390 INFO L137 encePairwiseOnDemand]: 68/82 looper letters, 306 selfloop transitions, 117 changer transitions 26/475 dead transitions. [2022-12-12 21:34:38,390 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 475 transitions, 7348 flow [2022-12-12 21:34:38,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 21:34:38,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 21:34:38,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 137 transitions. [2022-12-12 21:34:38,392 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4176829268292683 [2022-12-12 21:34:38,392 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -22 predicate places. [2022-12-12 21:34:38,392 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 475 transitions, 7348 flow [2022-12-12 21:34:38,578 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 449 transitions, 6926 flow [2022-12-12 21:34:38,579 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 449 transitions, 6926 flow [2022-12-12 21:34:38,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2022-12-12 21:34:38,579 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:34:38,579 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:34:38,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 21:34:38,579 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)] === [2022-12-12 21:34:38,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:34:38,580 INFO L85 PathProgramCache]: Analyzing trace with hash 133460485, now seen corresponding path program 1 times [2022-12-12 21:34:38,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:34:38,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993628508] [2022-12-12 21:34:38,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:34:38,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:34:38,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:34:38,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:34:38,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:34:38,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993628508] [2022-12-12 21:34:38,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993628508] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:34:38,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:34:38,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 21:34:38,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816004806] [2022-12-12 21:34:38,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:34:38,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 21:34:38,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:34:38,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 21:34:38,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-12 21:34:38,748 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 82 [2022-12-12 21:34:38,749 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 449 transitions, 6926 flow. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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) [2022-12-12 21:34:38,749 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:34:38,749 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 82 [2022-12-12 21:34:38,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:34:42,628 INFO L130 PetriNetUnfolder]: 21649/33143 cut-off events. [2022-12-12 21:34:42,629 INFO L131 PetriNetUnfolder]: For 113623/116550 co-relation queries the response was YES. [2022-12-12 21:34:42,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259164 conditions, 33143 events. 21649/33143 cut-off events. For 113623/116550 co-relation queries the response was YES. Maximal size of possible extension queue 1068. Compared 232333 event pairs, 873 based on Foata normal form. 3722/32007 useless extension candidates. Maximal degree in co-relation 259131. Up to 27972 conditions per place. [2022-12-12 21:34:42,847 INFO L137 encePairwiseOnDemand]: 68/82 looper letters, 281 selfloop transitions, 153 changer transitions 41/501 dead transitions. [2022-12-12 21:34:42,848 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 501 transitions, 8677 flow [2022-12-12 21:34:42,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 21:34:42,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 21:34:42,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 173 transitions. [2022-12-12 21:34:42,849 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4219512195121951 [2022-12-12 21:34:42,849 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -18 predicate places. [2022-12-12 21:34:42,849 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 501 transitions, 8677 flow [2022-12-12 21:34:42,972 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 460 transitions, 7933 flow [2022-12-12 21:34:42,973 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 460 transitions, 7933 flow [2022-12-12 21:34:42,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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) [2022-12-12 21:34:42,974 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:34:42,974 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:34:42,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 21:34:42,974 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)] === [2022-12-12 21:34:42,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:34:42,975 INFO L85 PathProgramCache]: Analyzing trace with hash 2081889795, now seen corresponding path program 1 times [2022-12-12 21:34:42,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:34:42,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115604945] [2022-12-12 21:34:42,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:34:42,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:34:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:34:43,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:34:43,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:34:43,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115604945] [2022-12-12 21:34:43,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115604945] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:34:43,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:34:43,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 21:34:43,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952457759] [2022-12-12 21:34:43,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:34:43,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 21:34:43,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:34:43,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 21:34:43,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-12 21:34:43,960 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 82 [2022-12-12 21:34:43,960 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 460 transitions, 7933 flow. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 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) [2022-12-12 21:34:43,961 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:34:43,961 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 82 [2022-12-12 21:34:43,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:34:50,191 INFO L130 PetriNetUnfolder]: 24882/40070 cut-off events. [2022-12-12 21:34:50,191 INFO L131 PetriNetUnfolder]: For 141796/144031 co-relation queries the response was YES. [2022-12-12 21:34:50,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340461 conditions, 40070 events. 24882/40070 cut-off events. For 141796/144031 co-relation queries the response was YES. Maximal size of possible extension queue 1566. Compared 315781 event pairs, 918 based on Foata normal form. 740/35130 useless extension candidates. Maximal degree in co-relation 340425. Up to 33811 conditions per place. [2022-12-12 21:34:50,467 INFO L137 encePairwiseOnDemand]: 69/82 looper letters, 620 selfloop transitions, 118 changer transitions 109/870 dead transitions. [2022-12-12 21:34:50,467 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 870 transitions, 16715 flow [2022-12-12 21:34:50,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-12 21:34:50,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-12 21:34:50,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 262 transitions. [2022-12-12 21:34:50,469 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.35501355013550134 [2022-12-12 21:34:50,469 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -10 predicate places. [2022-12-12 21:34:50,469 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 870 transitions, 16715 flow [2022-12-12 21:34:50,623 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 761 transitions, 14570 flow [2022-12-12 21:34:50,624 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 761 transitions, 14570 flow [2022-12-12 21:34:50,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 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) [2022-12-12 21:34:50,624 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:34:50,624 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:34:50,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-12 21:34:50,624 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:34:50,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:34:50,625 INFO L85 PathProgramCache]: Analyzing trace with hash 824291622, now seen corresponding path program 1 times [2022-12-12 21:34:50,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:34:50,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049254964] [2022-12-12 21:34:50,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:34:50,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:34:50,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:34:51,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:34:51,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:34:51,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049254964] [2022-12-12 21:34:51,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049254964] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:34:51,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:34:51,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 21:34:51,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408734609] [2022-12-12 21:34:51,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:34:51,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 21:34:51,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:34:51,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 21:34:51,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-12 21:34:51,144 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 82 [2022-12-12 21:34:51,145 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 761 transitions, 14570 flow. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 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) [2022-12-12 21:34:51,145 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:34:51,145 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 82 [2022-12-12 21:34:51,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:35:00,173 INFO L130 PetriNetUnfolder]: 35204/58212 cut-off events. [2022-12-12 21:35:00,174 INFO L131 PetriNetUnfolder]: For 220756/224229 co-relation queries the response was YES. [2022-12-12 21:35:00,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 535044 conditions, 58212 events. 35204/58212 cut-off events. For 220756/224229 co-relation queries the response was YES. Maximal size of possible extension queue 2901. Compared 511043 event pairs, 1370 based on Foata normal form. 1488/50928 useless extension candidates. Maximal degree in co-relation 535005. Up to 50896 conditions per place. [2022-12-12 21:35:00,566 INFO L137 encePairwiseOnDemand]: 69/82 looper letters, 845 selfloop transitions, 168 changer transitions 450/1486 dead transitions. [2022-12-12 21:35:00,566 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 1486 transitions, 31646 flow [2022-12-12 21:35:00,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-12 21:35:00,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-12 21:35:00,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 304 transitions. [2022-12-12 21:35:00,568 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.37073170731707317 [2022-12-12 21:35:00,568 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -1 predicate places. [2022-12-12 21:35:00,569 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 1486 transitions, 31646 flow [2022-12-12 21:35:00,769 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 1036 transitions, 21903 flow [2022-12-12 21:35:00,770 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 1036 transitions, 21903 flow [2022-12-12 21:35:00,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 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) [2022-12-12 21:35:00,770 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:35:00,771 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:35:00,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-12 21:35:00,771 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:35:00,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:35:00,772 INFO L85 PathProgramCache]: Analyzing trace with hash 339147020, now seen corresponding path program 2 times [2022-12-12 21:35:00,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:35:00,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351054604] [2022-12-12 21:35:00,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:35:00,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:35:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:35:01,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:35:01,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:35:01,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351054604] [2022-12-12 21:35:01,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351054604] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:35:01,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:35:01,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 21:35:01,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256900545] [2022-12-12 21:35:01,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:35:01,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 21:35:01,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:35:01,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 21:35:01,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-12 21:35:01,143 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 82 [2022-12-12 21:35:01,143 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 1036 transitions, 21903 flow. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:35:01,144 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:35:01,144 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 82 [2022-12-12 21:35:01,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand