/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-ticket-8.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 07:35:23,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 07:35:23,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 07:35:23,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 07:35:23,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 07:35:23,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 07:35:23,087 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 07:35:23,089 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 07:35:23,093 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 07:35:23,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 07:35:23,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 07:35:23,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 07:35:23,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 07:35:23,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 07:35:23,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 07:35:23,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 07:35:23,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 07:35:23,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 07:35:23,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 07:35:23,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 07:35:23,104 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 07:35:23,106 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 07:35:23,106 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 07:35:23,107 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 07:35:23,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 07:35:23,109 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 07:35:23,109 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 07:35:23,110 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 07:35:23,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 07:35:23,111 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 07:35:23,111 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 07:35:23,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 07:35:23,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 07:35:23,112 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 07:35:23,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 07:35:23,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 07:35:23,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 07:35:23,114 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 07:35:23,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 07:35:23,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 07:35:23,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 07:35:23,119 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2022-12-13 07:35:23,143 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 07:35:23,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 07:35:23,145 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 07:35:23,145 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 07:35:23,145 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 07:35:23,146 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 07:35:23,146 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 07:35:23,146 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 07:35:23,146 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 07:35:23,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 07:35:23,147 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 07:35:23,147 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 07:35:23,147 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 07:35:23,147 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 07:35:23,147 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 07:35:23,147 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 07:35:23,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 07:35:23,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 07:35:23,147 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 07:35:23,147 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 07:35:23,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 07:35:23,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 07:35:23,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 07:35:23,148 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 07:35:23,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 07:35:23,148 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 07:35:23,148 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 07:35:23,148 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 07:35:23,148 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-13 07:35:23,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 07:35:23,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 07:35:23,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 07:35:23,417 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 07:35:23,417 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 07:35:23,418 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-8.wvr.c [2022-12-13 07:35:24,433 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 07:35:24,605 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 07:35:24,607 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-8.wvr.c [2022-12-13 07:35:24,613 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/613ad0729/8583f8fc1daf480cb04311f5dc2f9efb/FLAG671d2f18c [2022-12-13 07:35:24,628 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/613ad0729/8583f8fc1daf480cb04311f5dc2f9efb [2022-12-13 07:35:24,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 07:35:24,631 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 07:35:24,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 07:35:24,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 07:35:24,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 07:35:24,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:35:24" (1/1) ... [2022-12-13 07:35:24,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ae5f0f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:35:24, skipping insertion in model container [2022-12-13 07:35:24,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:35:24" (1/1) ... [2022-12-13 07:35:24,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 07:35:24,668 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 07:35:24,775 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,776 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,778 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,779 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,779 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,780 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,781 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,781 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,781 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,784 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,784 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,785 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,785 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,785 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,787 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,787 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,787 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,787 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,788 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,788 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,788 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,788 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,788 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,789 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,789 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,789 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,791 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,791 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,792 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,792 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,792 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,792 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,793 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,793 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,793 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,795 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,795 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,795 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,796 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,796 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,797 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,797 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,797 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,809 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-8.wvr.c[5274,5287] [2022-12-13 07:35:24,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 07:35:24,822 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 07:35:24,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,835 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,837 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,837 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,837 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,838 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 07:35:24,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 07:35:24,854 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-8.wvr.c[5274,5287] [2022-12-13 07:35:24,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 07:35:24,866 INFO L208 MainTranslator]: Completed translation [2022-12-13 07:35:24,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:35:24 WrapperNode [2022-12-13 07:35:24,867 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 07:35:24,868 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 07:35:24,868 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 07:35:24,868 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 07:35:24,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:35:24" (1/1) ... [2022-12-13 07:35:24,879 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:35:24" (1/1) ... [2022-12-13 07:35:24,904 INFO L138 Inliner]: procedures = 27, calls = 130, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 358 [2022-12-13 07:35:24,905 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 07:35:24,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 07:35:24,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 07:35:24,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 07:35:24,916 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:35:24" (1/1) ... [2022-12-13 07:35:24,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:35:24" (1/1) ... [2022-12-13 07:35:24,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:35:24" (1/1) ... [2022-12-13 07:35:24,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:35:24" (1/1) ... [2022-12-13 07:35:24,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:35:24" (1/1) ... [2022-12-13 07:35:24,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:35:24" (1/1) ... [2022-12-13 07:35:24,950 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:35:24" (1/1) ... [2022-12-13 07:35:24,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:35:24" (1/1) ... [2022-12-13 07:35:24,957 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 07:35:24,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 07:35:24,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 07:35:24,958 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 07:35:24,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:35:24" (1/1) ... [2022-12-13 07:35:24,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 07:35:24,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 07:35:24,986 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 07:35:25,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 07:35:25,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 07:35:25,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 07:35:25,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 07:35:25,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 07:35:25,035 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 07:35:25,035 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 07:35:25,035 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 07:35:25,035 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 07:35:25,035 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 07:35:25,035 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 07:35:25,035 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-13 07:35:25,035 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-13 07:35:25,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 07:35:25,035 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-12-13 07:35:25,036 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-12-13 07:35:25,036 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-12-13 07:35:25,036 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-12-13 07:35:25,037 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2022-12-13 07:35:25,037 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2022-12-13 07:35:25,037 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2022-12-13 07:35:25,037 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2022-12-13 07:35:25,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 07:35:25,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 07:35:25,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 07:35:25,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 07:35:25,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 07:35:25,039 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 07:35:25,187 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 07:35:25,188 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 07:35:25,588 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 07:35:25,678 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 07:35:25,678 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 07:35:25,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:35:25 BoogieIcfgContainer [2022-12-13 07:35:25,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 07:35:25,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 07:35:25,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 07:35:25,684 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 07:35:25,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:35:24" (1/3) ... [2022-12-13 07:35:25,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64aea100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:35:25, skipping insertion in model container [2022-12-13 07:35:25,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:35:24" (2/3) ... [2022-12-13 07:35:25,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64aea100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:35:25, skipping insertion in model container [2022-12-13 07:35:25,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:35:25" (3/3) ... [2022-12-13 07:35:25,686 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-8.wvr.c [2022-12-13 07:35:25,714 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 07:35:25,714 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 07:35:25,714 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 07:35:25,850 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-12-13 07:35:25,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 250 places, 227 transitions, 518 flow [2022-12-13 07:35:25,963 INFO L130 PetriNetUnfolder]: 2/219 cut-off events. [2022-12-13 07:35:25,963 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-13 07:35:25,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 219 events. 2/219 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 103 event pairs, 0 based on Foata normal form. 0/216 useless extension candidates. Maximal degree in co-relation 172. Up to 2 conditions per place. [2022-12-13 07:35:25,968 INFO L82 GeneralOperation]: Start removeDead. Operand has 250 places, 227 transitions, 518 flow [2022-12-13 07:35:25,976 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 222 places, 199 transitions, 446 flow [2022-12-13 07:35:25,978 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 07:35:26,002 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 222 places, 199 transitions, 446 flow [2022-12-13 07:35:26,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 222 places, 199 transitions, 446 flow [2022-12-13 07:35:26,054 INFO L130 PetriNetUnfolder]: 2/199 cut-off events. [2022-12-13 07:35:26,054 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-13 07:35:26,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 199 events. 2/199 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 102 event pairs, 0 based on Foata normal form. 0/197 useless extension candidates. Maximal degree in co-relation 172. Up to 2 conditions per place. [2022-12-13 07:35:26,060 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 222 places, 199 transitions, 446 flow [2022-12-13 07:35:26,060 INFO L226 LiptonReduction]: Number of co-enabled transitions 5502 [2022-12-13 07:35:41,196 INFO L241 LiptonReduction]: Total number of compositions: 149 [2022-12-13 07:35:41,206 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 07:35:41,211 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6699c1ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:35:41,211 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-12-13 07:35:41,219 INFO L130 PetriNetUnfolder]: 0/49 cut-off events. [2022-12-13 07:35:41,219 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-13 07:35:41,219 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 07:35:41,220 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 07:35:41,220 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 07:35:41,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:35:41,224 INFO L85 PathProgramCache]: Analyzing trace with hash 137922621, now seen corresponding path program 1 times [2022-12-13 07:35:41,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:35:41,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574044942] [2022-12-13 07:35:41,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:35:41,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:35:41,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:35:43,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:35:43,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:35:43,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574044942] [2022-12-13 07:35:43,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574044942] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:35:43,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:35:43,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 07:35:43,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463002756] [2022-12-13 07:35:43,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:35:43,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 07:35:43,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:35:43,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 07:35:43,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 07:35:43,168 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 50 [2022-12-13 07:35:43,169 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 50 transitions, 148 flow. Second operand has 6 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:35:43,169 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 07:35:43,169 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 50 [2022-12-13 07:35:43,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 07:36:01,365 INFO L130 PetriNetUnfolder]: 232377/283581 cut-off events. [2022-12-13 07:36:01,366 INFO L131 PetriNetUnfolder]: For 19884/19884 co-relation queries the response was YES. [2022-12-13 07:36:01,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 586214 conditions, 283581 events. 232377/283581 cut-off events. For 19884/19884 co-relation queries the response was YES. Maximal size of possible extension queue 5667. Compared 1404325 event pairs, 65501 based on Foata normal form. 1/283582 useless extension candidates. Maximal degree in co-relation 462248. Up to 136160 conditions per place. [2022-12-13 07:36:02,663 INFO L137 encePairwiseOnDemand]: 39/50 looper letters, 118 selfloop transitions, 17 changer transitions 16/151 dead transitions. [2022-12-13 07:36:02,663 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 151 transitions, 733 flow [2022-12-13 07:36:02,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:36:02,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 07:36:02,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 152 transitions. [2022-12-13 07:36:02,671 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.608 [2022-12-13 07:36:02,674 INFO L295 CegarLoopForPetriNet]: 75 programPoint places, 4 predicate places. [2022-12-13 07:36:02,674 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 151 transitions, 733 flow [2022-12-13 07:36:03,268 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 135 transitions, 645 flow [2022-12-13 07:36:04,714 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 07:36:04,715 INFO L89 Accepts]: Start accepts. Operand has 79 places, 135 transitions, 645 flow [2022-12-13 07:36:04,723 INFO L95 Accepts]: Finished accepts. [2022-12-13 07:36:04,724 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 07:36:04,724 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 135 transitions, 645 flow [2022-12-13 07:36:04,729 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 135 transitions, 645 flow [2022-12-13 07:36:04,729 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 07:36:06,594 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 07:36:06,595 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1881 [2022-12-13 07:36:06,595 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 135 transitions, 645 flow [2022-12-13 07:36:06,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:36:06,596 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 07:36:06,596 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 07:36:06,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 07:36:06,596 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 07:36:06,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:36:06,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1276697227, now seen corresponding path program 2 times [2022-12-13 07:36:06,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:36:06,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885098704] [2022-12-13 07:36:06,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:36:06,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:36:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:36:07,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:36:07,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:36:07,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885098704] [2022-12-13 07:36:07,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885098704] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:36:07,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:36:07,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 07:36:07,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073049304] [2022-12-13 07:36:07,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:36:07,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 07:36:07,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:36:07,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 07:36:07,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 07:36:07,567 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 50 [2022-12-13 07:36:07,567 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 135 transitions, 645 flow. Second operand has 6 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:36:07,567 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 07:36:07,567 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 50 [2022-12-13 07:36:07,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 07:36:24,740 INFO L130 PetriNetUnfolder]: 226327/277531 cut-off events. [2022-12-13 07:36:24,741 INFO L131 PetriNetUnfolder]: For 21249/21249 co-relation queries the response was YES. [2022-12-13 07:36:25,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 851646 conditions, 277531 events. 226327/277531 cut-off events. For 21249/21249 co-relation queries the response was YES. Maximal size of possible extension queue 5830. Compared 1402265 event pairs, 43087 based on Foata normal form. 1/277532 useless extension candidates. Maximal degree in co-relation 667891. Up to 182641 conditions per place. [2022-12-13 07:36:25,994 INFO L137 encePairwiseOnDemand]: 39/50 looper letters, 138 selfloop transitions, 24 changer transitions 74/236 dead transitions. [2022-12-13 07:36:25,995 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 236 transitions, 1605 flow [2022-12-13 07:36:25,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:36:25,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 07:36:25,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 181 transitions. [2022-12-13 07:36:25,997 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6033333333333334 [2022-12-13 07:36:25,997 INFO L295 CegarLoopForPetriNet]: 75 programPoint places, 9 predicate places. [2022-12-13 07:36:25,997 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 236 transitions, 1605 flow [2022-12-13 07:36:26,736 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 162 transitions, 1095 flow [2022-12-13 07:36:28,058 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 07:36:28,058 INFO L89 Accepts]: Start accepts. Operand has 84 places, 162 transitions, 1095 flow [2022-12-13 07:36:28,060 INFO L95 Accepts]: Finished accepts. [2022-12-13 07:36:28,060 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 07:36:28,060 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 162 transitions, 1095 flow [2022-12-13 07:36:28,062 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 162 transitions, 1095 flow [2022-12-13 07:36:28,062 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 07:36:29,898 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 07:36:29,899 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1841 [2022-12-13 07:36:29,899 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 162 transitions, 1095 flow [2022-12-13 07:36:29,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:36:29,899 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 07:36:29,899 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 07:36:29,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 07:36:29,900 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 07:36:29,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:36:29,900 INFO L85 PathProgramCache]: Analyzing trace with hash 973242753, now seen corresponding path program 3 times [2022-12-13 07:36:29,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:36:29,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133705301] [2022-12-13 07:36:29,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:36:29,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:36:29,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:36:30,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:36:30,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:36:30,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133705301] [2022-12-13 07:36:30,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133705301] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:36:30,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:36:30,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 07:36:30,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843331240] [2022-12-13 07:36:30,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:36:30,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 07:36:30,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:36:30,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 07:36:30,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 07:36:30,175 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 50 [2022-12-13 07:36:30,175 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 162 transitions, 1095 flow. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:36:30,175 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 07:36:30,175 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 50 [2022-12-13 07:36:30,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 07:36:44,856 INFO L130 PetriNetUnfolder]: 176912/215985 cut-off events. [2022-12-13 07:36:44,856 INFO L131 PetriNetUnfolder]: For 11818/11818 co-relation queries the response was YES. [2022-12-13 07:36:45,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 878008 conditions, 215985 events. 176912/215985 cut-off events. For 11818/11818 co-relation queries the response was YES. Maximal size of possible extension queue 4591. Compared 1054284 event pairs, 29948 based on Foata normal form. 508/216493 useless extension candidates. Maximal degree in co-relation 873283. Up to 211603 conditions per place. [2022-12-13 07:36:46,322 INFO L137 encePairwiseOnDemand]: 34/50 looper letters, 254 selfloop transitions, 35 changer transitions 0/289 dead transitions. [2022-12-13 07:36:46,323 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 289 transitions, 2528 flow [2022-12-13 07:36:46,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:36:46,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 07:36:46,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 127 transitions. [2022-12-13 07:36:46,324 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.508 [2022-12-13 07:36:46,324 INFO L295 CegarLoopForPetriNet]: 75 programPoint places, 13 predicate places. [2022-12-13 07:36:46,324 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 289 transitions, 2528 flow [2022-12-13 07:36:47,111 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 289 transitions, 2528 flow [2022-12-13 07:36:48,393 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 07:36:48,393 INFO L89 Accepts]: Start accepts. Operand has 88 places, 289 transitions, 2528 flow [2022-12-13 07:36:48,395 INFO L95 Accepts]: Finished accepts. [2022-12-13 07:36:48,395 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 07:36:48,395 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 289 transitions, 2528 flow [2022-12-13 07:36:48,398 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 289 transitions, 2528 flow [2022-12-13 07:36:48,398 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 07:36:53,004 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 07:36:53,005 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 4612 [2022-12-13 07:36:53,005 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 289 transitions, 2532 flow [2022-12-13 07:36:53,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:36:53,006 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 07:36:53,006 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 07:36:53,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 07:36:53,006 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 07:36:53,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:36:53,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1372052613, now seen corresponding path program 4 times [2022-12-13 07:36:53,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:36:53,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562007713] [2022-12-13 07:36:53,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:36:53,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:36:53,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:36:53,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:36:53,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:36:53,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562007713] [2022-12-13 07:36:53,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562007713] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:36:53,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:36:53,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 07:36:53,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634869466] [2022-12-13 07:36:53,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:36:53,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 07:36:53,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:36:53,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 07:36:53,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 07:36:53,290 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 51 [2022-12-13 07:36:53,290 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 289 transitions, 2532 flow. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:36:53,290 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 07:36:53,290 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 51 [2022-12-13 07:36:53,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand