/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/mix047_power.oepc_pso.oepc_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 21:38:13,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 21:38:13,815 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 21:38:13,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 21:38:13,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 21:38:13,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 21:38:13,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 21:38:13,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 21:38:13,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 21:38:13,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 21:38:13,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 21:38:13,852 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 21:38:13,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 21:38:13,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 21:38:13,854 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 21:38:13,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 21:38:13,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 21:38:13,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 21:38:13,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 21:38:13,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 21:38:13,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 21:38:13,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 21:38:13,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 21:38:13,861 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 21:38:13,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 21:38:13,864 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 21:38:13,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 21:38:13,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 21:38:13,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 21:38:13,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 21:38:13,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 21:38:13,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 21:38:13,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 21:38:13,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 21:38:13,868 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 21:38:13,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 21:38:13,869 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 21:38:13,869 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 21:38:13,869 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 21:38:13,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 21:38:13,870 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 21:38:13,871 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 21:38:13,887 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 21:38:13,887 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 21:38:13,891 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 21:38:13,891 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 21:38:13,891 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 21:38:13,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 21:38:13,891 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 21:38:13,892 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 21:38:13,892 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 21:38:13,892 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 21:38:13,892 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 21:38:13,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 21:38:13,892 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 21:38:13,892 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 21:38:13,892 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 21:38:13,892 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 21:38:13,893 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 21:38:13,893 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 21:38:13,893 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 21:38:13,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 21:38:13,893 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 21:38:13,893 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 21:38:13,893 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 21:38:13,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:38:13,893 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 21:38:13,893 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 21:38:13,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 21:38:13,894 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 21:38:13,894 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 21:38:13,894 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 21:38:13,894 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 21:38:14,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 21:38:14,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 21:38:14,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 21:38:14,186 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 21:38:14,187 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 21:38:14,188 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix047_power.oepc_pso.oepc_rmo.oepc.i [2022-12-12 21:38:15,209 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 21:38:15,469 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 21:38:15,469 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix047_power.oepc_pso.oepc_rmo.oepc.i [2022-12-12 21:38:15,483 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/438c104a7/87f825e0045c4d4b99b5361217b256cf/FLAGf38b93d30 [2022-12-12 21:38:15,493 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/438c104a7/87f825e0045c4d4b99b5361217b256cf [2022-12-12 21:38:15,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 21:38:15,496 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 21:38:15,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 21:38:15,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 21:38:15,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 21:38:15,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:38:15" (1/1) ... [2022-12-12 21:38:15,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61156cca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:38:15, skipping insertion in model container [2022-12-12 21:38:15,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:38:15" (1/1) ... [2022-12-12 21:38:15,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 21:38:15,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 21:38:15,652 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/mix047_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-12-12 21:38:15,759 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,762 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,762 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,762 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,762 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,768 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,768 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,769 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,769 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,770 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,770 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,770 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,770 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,776 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,781 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,781 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,781 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,781 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,781 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,785 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,785 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,787 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,787 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,787 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,787 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,788 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,789 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,789 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,797 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,797 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,806 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:38:15,820 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 21:38:15,830 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/mix047_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-12-12 21:38:15,856 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,857 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,857 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,857 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,857 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,859 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,860 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,865 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,868 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,868 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,869 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,869 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,869 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,876 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,876 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,877 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,877 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,877 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,877 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,877 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,878 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,879 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,879 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,879 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,879 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,879 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,880 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,880 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,880 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,880 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,880 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,885 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,885 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,885 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,888 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,888 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,888 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,889 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,889 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:38:15,889 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:38:15,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:38:15,924 INFO L208 MainTranslator]: Completed translation [2022-12-12 21:38:15,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:38:15 WrapperNode [2022-12-12 21:38:15,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 21:38:15,926 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 21:38:15,927 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 21:38:15,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 21:38:15,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:38:15" (1/1) ... [2022-12-12 21:38:15,960 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:38:15" (1/1) ... [2022-12-12 21:38:15,994 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 144 [2022-12-12 21:38:15,995 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 21:38:15,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 21:38:15,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 21:38:15,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 21:38:16,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:38:15" (1/1) ... [2022-12-12 21:38:16,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:38:15" (1/1) ... [2022-12-12 21:38:16,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:38:15" (1/1) ... [2022-12-12 21:38:16,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:38:15" (1/1) ... [2022-12-12 21:38:16,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:38:15" (1/1) ... [2022-12-12 21:38:16,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:38:15" (1/1) ... [2022-12-12 21:38:16,028 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:38:15" (1/1) ... [2022-12-12 21:38:16,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:38:15" (1/1) ... [2022-12-12 21:38:16,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 21:38:16,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 21:38:16,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 21:38:16,043 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 21:38:16,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:38:15" (1/1) ... [2022-12-12 21:38:16,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:38:16,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 21:38:16,069 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 21:38:16,073 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 21:38:16,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 21:38:16,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 21:38:16,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 21:38:16,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 21:38:16,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 21:38:16,104 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-12 21:38:16,104 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-12 21:38:16,104 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-12 21:38:16,104 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-12 21:38:16,104 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-12 21:38:16,104 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-12 21:38:16,104 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-12 21:38:16,104 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-12 21:38:16,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 21:38:16,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 21:38:16,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 21:38:16,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 21:38:16,106 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 21:38:16,294 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 21:38:16,296 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 21:38:16,596 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 21:38:16,682 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 21:38:16,682 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 21:38:16,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:38:16 BoogieIcfgContainer [2022-12-12 21:38:16,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 21:38:16,687 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 21:38:16,687 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 21:38:16,689 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 21:38:16,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 09:38:15" (1/3) ... [2022-12-12 21:38:16,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be0bd1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:38:16, skipping insertion in model container [2022-12-12 21:38:16,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:38:15" (2/3) ... [2022-12-12 21:38:16,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be0bd1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:38:16, skipping insertion in model container [2022-12-12 21:38:16,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:38:16" (3/3) ... [2022-12-12 21:38:16,691 INFO L112 eAbstractionObserver]: Analyzing ICFG mix047_power.oepc_pso.oepc_rmo.oepc.i [2022-12-12 21:38:16,704 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 21:38:16,705 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-12 21:38:16,705 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 21:38:16,754 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 21:38:16,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 131 transitions, 282 flow [2022-12-12 21:38:16,819 INFO L130 PetriNetUnfolder]: 2/127 cut-off events. [2022-12-12 21:38:16,819 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:38:16,829 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 73 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2022-12-12 21:38:16,829 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 131 transitions, 282 flow [2022-12-12 21:38:16,835 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 127 transitions, 266 flow [2022-12-12 21:38:16,836 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 21:38:16,848 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 138 places, 127 transitions, 266 flow [2022-12-12 21:38:16,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 127 transitions, 266 flow [2022-12-12 21:38:16,872 INFO L130 PetriNetUnfolder]: 2/127 cut-off events. [2022-12-12 21:38:16,873 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:38:16,873 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 73 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2022-12-12 21:38:16,876 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 138 places, 127 transitions, 266 flow [2022-12-12 21:38:16,876 INFO L226 LiptonReduction]: Number of co-enabled transitions 3270 [2022-12-12 21:38:21,684 INFO L241 LiptonReduction]: Total number of compositions: 102 [2022-12-12 21:38:21,697 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 21:38:21,707 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;@f3e1ebb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 21:38:21,707 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-12 21:38:21,709 INFO L130 PetriNetUnfolder]: 0/7 cut-off events. [2022-12-12 21:38:21,709 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:38:21,709 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:38:21,710 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-12 21:38:21,710 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 21:38:21,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:38:21,714 INFO L85 PathProgramCache]: Analyzing trace with hash 572500, now seen corresponding path program 1 times [2022-12-12 21:38:21,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:38:21,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847016545] [2022-12-12 21:38:21,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:38:21,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:38:21,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:38:22,015 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 21:38:22,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:38:22,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847016545] [2022-12-12 21:38:22,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847016545] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:38:22,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:38:22,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 21:38:22,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224305983] [2022-12-12 21:38:22,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:38:22,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:38:22,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:38:22,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:38:22,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:38:22,038 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 83 [2022-12-12 21:38:22,039 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 83 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:38:22,039 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:38:22,039 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 83 [2022-12-12 21:38:22,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:38:31,072 INFO L130 PetriNetUnfolder]: 89490/129391 cut-off events. [2022-12-12 21:38:31,073 INFO L131 PetriNetUnfolder]: For 142/142 co-relation queries the response was YES. [2022-12-12 21:38:31,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 247130 conditions, 129391 events. 89490/129391 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 5901. Compared 1062831 event pairs, 13430 based on Foata normal form. 0/82283 useless extension candidates. Maximal degree in co-relation 247118. Up to 98405 conditions per place. [2022-12-12 21:38:31,436 INFO L137 encePairwiseOnDemand]: 79/83 looper letters, 52 selfloop transitions, 2 changer transitions 71/140 dead transitions. [2022-12-12 21:38:31,436 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 140 transitions, 549 flow [2022-12-12 21:38:31,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:38:31,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:38:31,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 175 transitions. [2022-12-12 21:38:31,447 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7028112449799196 [2022-12-12 21:38:31,453 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, 0 predicate places. [2022-12-12 21:38:31,453 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 140 transitions, 549 flow [2022-12-12 21:38:31,612 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 69 transitions, 267 flow [2022-12-12 21:38:31,613 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 69 transitions, 267 flow [2022-12-12 21:38:31,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:38:31,614 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:38:31,614 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:38:31,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 21:38:31,614 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 21:38:31,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:38:31,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1165077413, now seen corresponding path program 1 times [2022-12-12 21:38:31,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:38:31,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515778211] [2022-12-12 21:38:31,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:38:31,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:38:31,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:38:31,871 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 21:38:31,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:38:31,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515778211] [2022-12-12 21:38:31,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515778211] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:38:31,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:38:31,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 21:38:31,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814349222] [2022-12-12 21:38:31,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:38:31,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:38:31,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:38:31,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:38:31,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:38:31,876 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 83 [2022-12-12 21:38:31,876 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 69 transitions, 267 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 21:38:31,876 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:38:31,876 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 83 [2022-12-12 21:38:31,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:38:36,328 INFO L130 PetriNetUnfolder]: 50411/69714 cut-off events. [2022-12-12 21:38:36,329 INFO L131 PetriNetUnfolder]: For 7131/7131 co-relation queries the response was YES. [2022-12-12 21:38:36,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193230 conditions, 69714 events. 50411/69714 cut-off events. For 7131/7131 co-relation queries the response was YES. Maximal size of possible extension queue 2287. Compared 453855 event pairs, 3805 based on Foata normal form. 1666/59382 useless extension candidates. Maximal degree in co-relation 193215. Up to 48445 conditions per place. [2022-12-12 21:38:36,641 INFO L137 encePairwiseOnDemand]: 72/83 looper letters, 90 selfloop transitions, 16 changer transitions 2/119 dead transitions. [2022-12-12 21:38:36,642 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 119 transitions, 687 flow [2022-12-12 21:38:36,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:38:36,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:38:36,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2022-12-12 21:38:36,646 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.40160642570281124 [2022-12-12 21:38:36,646 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -34 predicate places. [2022-12-12 21:38:36,646 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 119 transitions, 687 flow [2022-12-12 21:38:36,844 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 117 transitions, 679 flow [2022-12-12 21:38:36,845 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 117 transitions, 679 flow [2022-12-12 21:38:36,845 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 21:38:36,845 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:38:36,845 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:38:36,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 21:38:36,845 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 21:38:36,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:38:36,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1757661410, now seen corresponding path program 1 times [2022-12-12 21:38:36,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:38:36,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393110501] [2022-12-12 21:38:36,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:38:36,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:38:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:38:36,989 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 21:38:36,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:38:36,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393110501] [2022-12-12 21:38:36,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393110501] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:38:36,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:38:36,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:38:36,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936190277] [2022-12-12 21:38:36,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:38:36,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:38:36,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:38:36,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:38:36,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:38:36,994 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 83 [2022-12-12 21:38:36,995 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 117 transitions, 679 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 21:38:36,995 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:38:36,995 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 83 [2022-12-12 21:38:36,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:38:40,539 INFO L130 PetriNetUnfolder]: 36514/51194 cut-off events. [2022-12-12 21:38:40,539 INFO L131 PetriNetUnfolder]: For 3524/3524 co-relation queries the response was YES. [2022-12-12 21:38:40,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192643 conditions, 51194 events. 36514/51194 cut-off events. For 3524/3524 co-relation queries the response was YES. Maximal size of possible extension queue 1706. Compared 325007 event pairs, 1388 based on Foata normal form. 498/42869 useless extension candidates. Maximal degree in co-relation 192625. Up to 37224 conditions per place. [2022-12-12 21:38:40,802 INFO L137 encePairwiseOnDemand]: 74/83 looper letters, 142 selfloop transitions, 14 changer transitions 4/171 dead transitions. [2022-12-12 21:38:40,802 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 171 transitions, 1311 flow [2022-12-12 21:38:40,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 21:38:40,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 21:38:40,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 120 transitions. [2022-12-12 21:38:40,803 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3614457831325301 [2022-12-12 21:38:40,804 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -32 predicate places. [2022-12-12 21:38:40,804 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 171 transitions, 1311 flow [2022-12-12 21:38:40,982 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 167 transitions, 1279 flow [2022-12-12 21:38:40,982 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 167 transitions, 1279 flow [2022-12-12 21:38:40,982 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 21:38:40,982 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:38:40,982 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:38:40,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 21:38:40,983 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 21:38:40,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:38:40,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1347135581, now seen corresponding path program 1 times [2022-12-12 21:38:40,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:38:40,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669229509] [2022-12-12 21:38:40,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:38:40,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:38:41,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:38:41,125 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 21:38:41,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:38:41,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669229509] [2022-12-12 21:38:41,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669229509] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:38:41,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:38:41,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:38:41,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007633593] [2022-12-12 21:38:41,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:38:41,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:38:41,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:38:41,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:38:41,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:38:41,129 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 83 [2022-12-12 21:38:41,129 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 167 transitions, 1279 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 21:38:41,129 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:38:41,129 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 83 [2022-12-12 21:38:41,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:38:44,691 INFO L130 PetriNetUnfolder]: 32520/45714 cut-off events. [2022-12-12 21:38:44,691 INFO L131 PetriNetUnfolder]: For 3588/3588 co-relation queries the response was YES. [2022-12-12 21:38:44,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215243 conditions, 45714 events. 32520/45714 cut-off events. For 3588/3588 co-relation queries the response was YES. Maximal size of possible extension queue 1550. Compared 285135 event pairs, 1392 based on Foata normal form. 60/38485 useless extension candidates. Maximal degree in co-relation 215222. Up to 33138 conditions per place. [2022-12-12 21:38:44,954 INFO L137 encePairwiseOnDemand]: 73/83 looper letters, 205 selfloop transitions, 32 changer transitions 0/248 dead transitions. [2022-12-12 21:38:44,954 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 248 transitions, 2405 flow [2022-12-12 21:38:44,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 21:38:44,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 21:38:44,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 126 transitions. [2022-12-12 21:38:44,956 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3795180722891566 [2022-12-12 21:38:44,956 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -30 predicate places. [2022-12-12 21:38:44,956 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 248 transitions, 2405 flow [2022-12-12 21:38:45,135 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 248 transitions, 2405 flow [2022-12-12 21:38:45,135 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 248 transitions, 2405 flow [2022-12-12 21:38:45,136 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 21:38:45,136 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:38:45,136 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:38:45,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 21:38:45,136 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 21:38:45,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:38:45,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1188376676, now seen corresponding path program 1 times [2022-12-12 21:38:45,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:38:45,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288194660] [2022-12-12 21:38:45,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:38:45,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:38:45,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:38:45,252 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 21:38:45,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:38:45,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288194660] [2022-12-12 21:38:45,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288194660] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:38:45,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:38:45,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 21:38:45,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289163773] [2022-12-12 21:38:45,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:38:45,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:38:45,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:38:45,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:38:45,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:38:45,255 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 83 [2022-12-12 21:38:45,256 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 248 transitions, 2405 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:38:45,256 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:38:45,256 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 83 [2022-12-12 21:38:45,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:38:48,661 INFO L130 PetriNetUnfolder]: 32187/45256 cut-off events. [2022-12-12 21:38:48,661 INFO L131 PetriNetUnfolder]: For 10965/10965 co-relation queries the response was YES. [2022-12-12 21:38:48,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252503 conditions, 45256 events. 32187/45256 cut-off events. For 10965/10965 co-relation queries the response was YES. Maximal size of possible extension queue 1526. Compared 281533 event pairs, 1352 based on Foata normal form. 50/38064 useless extension candidates. Maximal degree in co-relation 252479. Up to 38275 conditions per place. [2022-12-12 21:38:49,067 INFO L137 encePairwiseOnDemand]: 79/83 looper letters, 326 selfloop transitions, 22 changer transitions 0/371 dead transitions. [2022-12-12 21:38:49,068 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 371 transitions, 4340 flow [2022-12-12 21:38:49,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:38:49,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:38:49,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 94 transitions. [2022-12-12 21:38:49,069 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.37751004016064255 [2022-12-12 21:38:49,069 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -28 predicate places. [2022-12-12 21:38:49,069 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 371 transitions, 4340 flow [2022-12-12 21:38:49,312 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 371 transitions, 4340 flow [2022-12-12 21:38:49,312 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 371 transitions, 4340 flow [2022-12-12 21:38:49,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:38:49,313 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:38:49,313 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:38:49,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 21:38:49,313 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 21:38:49,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:38:49,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1752264893, now seen corresponding path program 1 times [2022-12-12 21:38:49,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:38:49,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630071385] [2022-12-12 21:38:49,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:38:49,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:38:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:38:49,428 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 21:38:49,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:38:49,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630071385] [2022-12-12 21:38:49,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630071385] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:38:49,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:38:49,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 21:38:49,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831214353] [2022-12-12 21:38:49,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:38:49,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:38:49,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:38:49,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:38:49,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:38:49,431 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 83 [2022-12-12 21:38:49,431 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 371 transitions, 4340 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 21:38:49,431 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:38:49,431 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 83 [2022-12-12 21:38:49,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:38:55,589 INFO L130 PetriNetUnfolder]: 47361/67190 cut-off events. [2022-12-12 21:38:55,589 INFO L131 PetriNetUnfolder]: For 18543/18543 co-relation queries the response was YES. [2022-12-12 21:38:55,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 439504 conditions, 67190 events. 47361/67190 cut-off events. For 18543/18543 co-relation queries the response was YES. Maximal size of possible extension queue 2351. Compared 450128 event pairs, 950 based on Foata normal form. 720/56226 useless extension candidates. Maximal degree in co-relation 439477. Up to 58049 conditions per place. [2022-12-12 21:38:56,122 INFO L137 encePairwiseOnDemand]: 73/83 looper letters, 402 selfloop transitions, 56 changer transitions 16/485 dead transitions. [2022-12-12 21:38:56,122 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 485 transitions, 6638 flow [2022-12-12 21:38:56,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 21:38:56,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 21:38:56,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 133 transitions. [2022-12-12 21:38:56,124 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4006024096385542 [2022-12-12 21:38:56,124 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -25 predicate places. [2022-12-12 21:38:56,125 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 485 transitions, 6638 flow [2022-12-12 21:38:56,386 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 71 places, 469 transitions, 6430 flow [2022-12-12 21:38:56,387 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 469 transitions, 6430 flow [2022-12-12 21:38:56,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 21:38:56,387 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:38:56,387 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:38:56,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 21:38:56,387 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 21:38:56,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:38:56,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1752207233, now seen corresponding path program 1 times [2022-12-12 21:38:56,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:38:56,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606022888] [2022-12-12 21:38:56,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:38:56,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:38:56,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:38:56,491 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 21:38:56,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:38:56,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606022888] [2022-12-12 21:38:56,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606022888] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:38:56,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:38:56,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:38:56,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486386124] [2022-12-12 21:38:56,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:38:56,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:38:56,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:38:56,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:38:56,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:38:56,493 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 83 [2022-12-12 21:38:56,493 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 469 transitions, 6430 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:38:56,493 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:38:56,493 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 83 [2022-12-12 21:38:56,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:39:05,831 INFO L130 PetriNetUnfolder]: 71530/98148 cut-off events. [2022-12-12 21:39:05,831 INFO L131 PetriNetUnfolder]: For 216386/217723 co-relation queries the response was YES. [2022-12-12 21:39:06,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 679257 conditions, 98148 events. 71530/98148 cut-off events. For 216386/217723 co-relation queries the response was YES. Maximal size of possible extension queue 3584. Compared 642526 event pairs, 10956 based on Foata normal form. 1246/84081 useless extension candidates. Maximal degree in co-relation 679227. Up to 88297 conditions per place. [2022-12-12 21:39:06,478 INFO L137 encePairwiseOnDemand]: 69/83 looper letters, 569 selfloop transitions, 135 changer transitions 0/740 dead transitions. [2022-12-12 21:39:06,479 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 740 transitions, 11629 flow [2022-12-12 21:39:06,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:39:06,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:39:06,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 98 transitions. [2022-12-12 21:39:06,480 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.39357429718875503 [2022-12-12 21:39:06,480 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -23 predicate places. [2022-12-12 21:39:06,480 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 740 transitions, 11629 flow [2022-12-12 21:39:06,872 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 740 transitions, 11629 flow [2022-12-12 21:39:06,872 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 740 transitions, 11629 flow [2022-12-12 21:39:06,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:39:06,872 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:39:06,873 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:39:06,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 21:39:06,873 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 21:39:06,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:39:06,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1998538365, now seen corresponding path program 1 times [2022-12-12 21:39:06,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:39:06,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728004750] [2022-12-12 21:39:06,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:39:06,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:39:06,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:39:07,005 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 21:39:07,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:39:07,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728004750] [2022-12-12 21:39:07,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728004750] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:39:07,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:39:07,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:39:07,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044221067] [2022-12-12 21:39:07,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:39:07,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:39:07,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:39:07,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:39:07,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:39:07,010 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 83 [2022-12-12 21:39:07,010 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 740 transitions, 11629 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:39:07,010 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:39:07,010 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 83 [2022-12-12 21:39:07,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand