/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix005_power.oepc_pso.oepc_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 06:07:07,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 06:07:07,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 06:07:07,751 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 06:07:07,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 06:07:07,752 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 06:07:07,753 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 06:07:07,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 06:07:07,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 06:07:07,756 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 06:07:07,757 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 06:07:07,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 06:07:07,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 06:07:07,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 06:07:07,759 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 06:07:07,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 06:07:07,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 06:07:07,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 06:07:07,762 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 06:07:07,764 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 06:07:07,765 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 06:07:07,768 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 06:07:07,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 06:07:07,769 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 06:07:07,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 06:07:07,772 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 06:07:07,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 06:07:07,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 06:07:07,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 06:07:07,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 06:07:07,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 06:07:07,774 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 06:07:07,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 06:07:07,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 06:07:07,776 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 06:07:07,776 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 06:07:07,776 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 06:07:07,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 06:07:07,777 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 06:07:07,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 06:07:07,778 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 06:07:07,782 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2022-12-13 06:07:07,810 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 06:07:07,810 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 06:07:07,811 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 06:07:07,812 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 06:07:07,812 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 06:07:07,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 06:07:07,812 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 06:07:07,812 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 06:07:07,812 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 06:07:07,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 06:07:07,812 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 06:07:07,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 06:07:07,813 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 06:07:07,813 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 06:07:07,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 06:07:07,813 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 06:07:07,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 06:07:07,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 06:07:07,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 06:07:07,813 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 06:07:07,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 06:07:07,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 06:07:07,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 06:07:07,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 06:07:07,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 06:07:07,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 06:07:07,814 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 06:07:07,814 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 06:07:07,814 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-13 06:07:08,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 06:07:08,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 06:07:08,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 06:07:08,101 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 06:07:08,102 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 06:07:08,106 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix005_power.oepc_pso.oepc_rmo.oepc.i [2022-12-13 06:07:09,128 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 06:07:09,344 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 06:07:09,345 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix005_power.oepc_pso.oepc_rmo.oepc.i [2022-12-13 06:07:09,365 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f7f26357/036a1a610f4e4f13a75b78187d4a0a29/FLAG9a97af02a [2022-12-13 06:07:09,378 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f7f26357/036a1a610f4e4f13a75b78187d4a0a29 [2022-12-13 06:07:09,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 06:07:09,381 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 06:07:09,384 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 06:07:09,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 06:07:09,386 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 06:07:09,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:07:09" (1/1) ... [2022-12-13 06:07:09,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@278bbfaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:07:09, skipping insertion in model container [2022-12-13 06:07:09,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:07:09" (1/1) ... [2022-12-13 06:07:09,392 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 06:07:09,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 06:07:09,600 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/mix005_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-12-13 06:07:09,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,744 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,744 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,745 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,745 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,749 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,750 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,750 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,751 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,751 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,751 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,751 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,752 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,756 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,757 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,757 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,760 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,761 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,761 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,761 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,761 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,761 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,761 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,766 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,766 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,767 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,768 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,768 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,768 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,769 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,769 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,784 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,787 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,793 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,801 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,801 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,802 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 06:07:09,812 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 06:07:09,821 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/mix005_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-12-13 06:07:09,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,835 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,835 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,835 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,835 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,837 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,837 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,837 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,837 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,837 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,838 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,838 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,850 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,850 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,850 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,851 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,851 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:07:09,852 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:07:09,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 06:07:09,880 INFO L208 MainTranslator]: Completed translation [2022-12-13 06:07:09,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:07:09 WrapperNode [2022-12-13 06:07:09,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 06:07:09,883 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 06:07:09,883 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 06:07:09,883 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 06:07:09,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:07:09" (1/1) ... [2022-12-13 06:07:09,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:07:09" (1/1) ... [2022-12-13 06:07:09,944 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 146 [2022-12-13 06:07:09,944 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 06:07:09,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 06:07:09,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 06:07:09,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 06:07:09,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:07:09" (1/1) ... [2022-12-13 06:07:09,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:07:09" (1/1) ... [2022-12-13 06:07:09,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:07:09" (1/1) ... [2022-12-13 06:07:09,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:07:09" (1/1) ... [2022-12-13 06:07:09,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:07:09" (1/1) ... [2022-12-13 06:07:09,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:07:09" (1/1) ... [2022-12-13 06:07:09,968 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:07:09" (1/1) ... [2022-12-13 06:07:09,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:07:09" (1/1) ... [2022-12-13 06:07:09,971 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 06:07:09,972 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 06:07:09,972 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 06:07:09,972 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 06:07:09,973 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:07:09" (1/1) ... [2022-12-13 06:07:09,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 06:07:09,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 06:07:10,009 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 06:07:10,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 06:07:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 06:07:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 06:07:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 06:07:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 06:07:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 06:07:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 06:07:10,038 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 06:07:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 06:07:10,038 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 06:07:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 06:07:10,038 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 06:07:10,039 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-13 06:07:10,040 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-13 06:07:10,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 06:07:10,040 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 06:07:10,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 06:07:10,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 06:07:10,041 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 06:07:10,167 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 06:07:10,169 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 06:07:10,470 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 06:07:10,603 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 06:07:10,603 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 06:07:10,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:07:10 BoogieIcfgContainer [2022-12-13 06:07:10,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 06:07:10,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 06:07:10,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 06:07:10,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 06:07:10,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:07:09" (1/3) ... [2022-12-13 06:07:10,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b81449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:07:10, skipping insertion in model container [2022-12-13 06:07:10,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:07:09" (2/3) ... [2022-12-13 06:07:10,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b81449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:07:10, skipping insertion in model container [2022-12-13 06:07:10,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:07:10" (3/3) ... [2022-12-13 06:07:10,612 INFO L112 eAbstractionObserver]: Analyzing ICFG mix005_power.oepc_pso.oepc_rmo.oepc.i [2022-12-13 06:07:10,626 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 06:07:10,627 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 06:07:10,627 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 06:07:10,680 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 06:07:10,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 133 transitions, 286 flow [2022-12-13 06:07:10,774 INFO L130 PetriNetUnfolder]: 2/129 cut-off events. [2022-12-13 06:07:10,774 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 06:07:10,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 129 events. 2/129 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 76 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2022-12-13 06:07:10,780 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 133 transitions, 286 flow [2022-12-13 06:07:10,787 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 140 places, 129 transitions, 270 flow [2022-12-13 06:07:10,789 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:07:10,805 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 129 transitions, 270 flow [2022-12-13 06:07:10,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 129 transitions, 270 flow [2022-12-13 06:07:10,886 INFO L130 PetriNetUnfolder]: 2/129 cut-off events. [2022-12-13 06:07:10,886 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 06:07:10,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 129 events. 2/129 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 76 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2022-12-13 06:07:10,889 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 140 places, 129 transitions, 270 flow [2022-12-13 06:07:10,889 INFO L226 LiptonReduction]: Number of co-enabled transitions 3286 [2022-12-13 06:07:15,758 INFO L241 LiptonReduction]: Total number of compositions: 100 [2022-12-13 06:07:15,772 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 06:07:15,778 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;@5b7eca45, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 06:07:15,778 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-13 06:07:15,782 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2022-12-13 06:07:15,782 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 06:07:15,782 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:07:15,783 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 06:07:15,783 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 06:07:15,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:07:15,787 INFO L85 PathProgramCache]: Analyzing trace with hash 593742, now seen corresponding path program 1 times [2022-12-13 06:07:15,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:07:15,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561320662] [2022-12-13 06:07:15,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:07:15,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:07:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:07:16,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 06:07:16,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:07:16,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561320662] [2022-12-13 06:07:16,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561320662] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:07:16,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:07:16,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 06:07:16,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827679503] [2022-12-13 06:07:16,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:07:16,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 06:07:16,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:07:16,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 06:07:16,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 06:07:16,155 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 85 [2022-12-13 06:07:16,156 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 85 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:07:16,156 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:07:16,156 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 85 [2022-12-13 06:07:16,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:07:23,078 INFO L130 PetriNetUnfolder]: 66790/93710 cut-off events. [2022-12-13 06:07:23,078 INFO L131 PetriNetUnfolder]: For 148/148 co-relation queries the response was YES. [2022-12-13 06:07:23,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181999 conditions, 93710 events. 66790/93710 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 4472. Compared 679413 event pairs, 37024 based on Foata normal form. 0/59628 useless extension candidates. Maximal degree in co-relation 181987. Up to 73765 conditions per place. [2022-12-13 06:07:23,632 INFO L137 encePairwiseOnDemand]: 79/85 looper letters, 48 selfloop transitions, 2 changer transitions 71/138 dead transitions. [2022-12-13 06:07:23,632 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 138 transitions, 537 flow [2022-12-13 06:07:23,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 06:07:23,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 06:07:23,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 181 transitions. [2022-12-13 06:07:23,641 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7098039215686275 [2022-12-13 06:07:23,643 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, -1 predicate places. [2022-12-13 06:07:23,643 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 138 transitions, 537 flow [2022-12-13 06:07:23,748 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 67 transitions, 255 flow [2022-12-13 06:07:24,207 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:07:24,208 INFO L89 Accepts]: Start accepts. Operand has 60 places, 67 transitions, 255 flow [2022-12-13 06:07:24,212 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:07:24,213 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:07:24,213 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 67 transitions, 255 flow [2022-12-13 06:07:24,218 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 67 transitions, 255 flow [2022-12-13 06:07:24,218 INFO L226 LiptonReduction]: Number of co-enabled transitions 1154 [2022-12-13 06:07:24,770 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:07:24,772 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 565 [2022-12-13 06:07:24,772 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 67 transitions, 255 flow [2022-12-13 06:07:24,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:07:24,773 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:07:24,773 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:07:24,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 06:07:24,778 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 06:07:24,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:07:24,778 INFO L85 PathProgramCache]: Analyzing trace with hash 26233399, now seen corresponding path program 1 times [2022-12-13 06:07:24,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:07:24,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859805368] [2022-12-13 06:07:24,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:07:24,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:07:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:07:25,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 06:07:25,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:07:25,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859805368] [2022-12-13 06:07:25,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859805368] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:07:25,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:07:25,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 06:07:25,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694600051] [2022-12-13 06:07:25,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:07:25,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 06:07:25,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:07:25,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 06:07:25,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 06:07:25,028 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 45 [2022-12-13 06:07:25,028 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 67 transitions, 255 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:07:25,028 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:07:25,028 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 45 [2022-12-13 06:07:25,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:07:29,596 INFO L130 PetriNetUnfolder]: 46975/65551 cut-off events. [2022-12-13 06:07:29,596 INFO L131 PetriNetUnfolder]: For 9359/9359 co-relation queries the response was YES. [2022-12-13 06:07:29,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178022 conditions, 65551 events. 46975/65551 cut-off events. For 9359/9359 co-relation queries the response was YES. Maximal size of possible extension queue 2030. Compared 424165 event pairs, 12877 based on Foata normal form. 1184/56701 useless extension candidates. Maximal degree in co-relation 178007. Up to 45043 conditions per place. [2022-12-13 06:07:30,131 INFO L137 encePairwiseOnDemand]: 36/45 looper letters, 83 selfloop transitions, 9 changer transitions 2/105 dead transitions. [2022-12-13 06:07:30,132 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 105 transitions, 595 flow [2022-12-13 06:07:30,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 06:07:30,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 06:07:30,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2022-12-13 06:07:30,148 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7185185185185186 [2022-12-13 06:07:30,149 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, -35 predicate places. [2022-12-13 06:07:30,149 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 105 transitions, 595 flow [2022-12-13 06:07:30,363 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 103 transitions, 587 flow [2022-12-13 06:07:30,670 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:07:30,671 INFO L89 Accepts]: Start accepts. Operand has 61 places, 103 transitions, 587 flow [2022-12-13 06:07:30,671 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:07:30,672 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:07:30,672 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 103 transitions, 587 flow [2022-12-13 06:07:30,674 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 103 transitions, 587 flow [2022-12-13 06:07:30,675 INFO L226 LiptonReduction]: Number of co-enabled transitions 1186 [2022-12-13 06:07:30,691 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:07:30,692 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 22 [2022-12-13 06:07:30,692 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 103 transitions, 587 flow [2022-12-13 06:07:30,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:07:30,693 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:07:30,693 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:07:30,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 06:07:30,693 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 06:07:30,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:07:30,693 INFO L85 PathProgramCache]: Analyzing trace with hash 813232728, now seen corresponding path program 1 times [2022-12-13 06:07:30,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:07:30,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976034704] [2022-12-13 06:07:30,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:07:30,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:07:30,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:07:30,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 06:07:30,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:07:30,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976034704] [2022-12-13 06:07:30,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976034704] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:07:30,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:07:30,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 06:07:30,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004295534] [2022-12-13 06:07:30,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:07:30,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 06:07:30,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:07:30,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 06:07:30,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 06:07:30,845 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 44 [2022-12-13 06:07:30,846 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 103 transitions, 587 flow. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:07:30,846 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:07:30,846 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 44 [2022-12-13 06:07:30,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:07:34,455 INFO L130 PetriNetUnfolder]: 34733/48905 cut-off events. [2022-12-13 06:07:34,455 INFO L131 PetriNetUnfolder]: For 6473/6473 co-relation queries the response was YES. [2022-12-13 06:07:34,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181791 conditions, 48905 events. 34733/48905 cut-off events. For 6473/6473 co-relation queries the response was YES. Maximal size of possible extension queue 1499. Compared 305714 event pairs, 1979 based on Foata normal form. 480/41685 useless extension candidates. Maximal degree in co-relation 181773. Up to 35661 conditions per place. [2022-12-13 06:07:34,736 INFO L137 encePairwiseOnDemand]: 35/44 looper letters, 127 selfloop transitions, 9 changer transitions 0/147 dead transitions. [2022-12-13 06:07:34,737 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 147 transitions, 1109 flow [2022-12-13 06:07:34,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 06:07:34,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 06:07:34,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 116 transitions. [2022-12-13 06:07:34,756 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6590909090909091 [2022-12-13 06:07:34,757 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, -33 predicate places. [2022-12-13 06:07:34,757 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 147 transitions, 1109 flow [2022-12-13 06:07:34,950 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 147 transitions, 1109 flow [2022-12-13 06:07:35,200 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:07:35,201 INFO L89 Accepts]: Start accepts. Operand has 64 places, 147 transitions, 1109 flow [2022-12-13 06:07:35,202 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:07:35,202 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:07:35,203 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 147 transitions, 1109 flow [2022-12-13 06:07:35,219 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 147 transitions, 1109 flow [2022-12-13 06:07:35,219 INFO L226 LiptonReduction]: Number of co-enabled transitions 1558 [2022-12-13 06:07:35,236 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:07:35,237 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 37 [2022-12-13 06:07:35,237 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 147 transitions, 1109 flow [2022-12-13 06:07:35,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:07:35,238 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:07:35,238 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:07:35,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 06:07:35,238 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 06:07:35,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:07:35,238 INFO L85 PathProgramCache]: Analyzing trace with hash -670456064, now seen corresponding path program 1 times [2022-12-13 06:07:35,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:07:35,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583964487] [2022-12-13 06:07:35,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:07:35,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:07:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:07:35,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 06:07:35,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:07:35,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583964487] [2022-12-13 06:07:35,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583964487] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:07:35,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:07:35,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 06:07:35,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077360710] [2022-12-13 06:07:35,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:07:35,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 06:07:35,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:07:35,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 06:07:35,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 06:07:35,495 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 44 [2022-12-13 06:07:35,495 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 147 transitions, 1109 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:07:35,495 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:07:35,495 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 44 [2022-12-13 06:07:35,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:07:38,982 INFO L130 PetriNetUnfolder]: 34140/48067 cut-off events. [2022-12-13 06:07:38,983 INFO L131 PetriNetUnfolder]: For 6234/6234 co-relation queries the response was YES. [2022-12-13 06:07:39,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224391 conditions, 48067 events. 34140/48067 cut-off events. For 6234/6234 co-relation queries the response was YES. Maximal size of possible extension queue 1464. Compared 300822 event pairs, 1923 based on Foata normal form. 70/40544 useless extension candidates. Maximal degree in co-relation 224370. Up to 35071 conditions per place. [2022-12-13 06:07:39,311 INFO L137 encePairwiseOnDemand]: 35/44 looper letters, 173 selfloop transitions, 22 changer transitions 0/206 dead transitions. [2022-12-13 06:07:39,311 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 206 transitions, 1970 flow [2022-12-13 06:07:39,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 06:07:39,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 06:07:39,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 127 transitions. [2022-12-13 06:07:39,312 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7215909090909091 [2022-12-13 06:07:39,313 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, -30 predicate places. [2022-12-13 06:07:39,313 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 206 transitions, 1970 flow [2022-12-13 06:07:39,513 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 206 transitions, 1970 flow [2022-12-13 06:07:39,895 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:07:39,895 INFO L89 Accepts]: Start accepts. Operand has 67 places, 206 transitions, 1970 flow [2022-12-13 06:07:39,896 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:07:39,896 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:07:39,896 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 206 transitions, 1970 flow [2022-12-13 06:07:39,903 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 206 transitions, 1970 flow [2022-12-13 06:07:39,903 INFO L226 LiptonReduction]: Number of co-enabled transitions 1944 [2022-12-13 06:07:39,915 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:07:39,917 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 22 [2022-12-13 06:07:39,917 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 206 transitions, 1970 flow [2022-12-13 06:07:39,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:07:39,917 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:07:39,917 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:07:39,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 06:07:39,918 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 06:07:39,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:07:39,918 INFO L85 PathProgramCache]: Analyzing trace with hash -30205181, now seen corresponding path program 1 times [2022-12-13 06:07:39,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:07:39,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578797996] [2022-12-13 06:07:39,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:07:39,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:07:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:07:40,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 06:07:40,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:07:40,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578797996] [2022-12-13 06:07:40,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578797996] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:07:40,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:07:40,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 06:07:40,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385279416] [2022-12-13 06:07:40,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:07:40,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 06:07:40,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:07:40,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 06:07:40,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 06:07:40,030 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 44 [2022-12-13 06:07:40,031 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 206 transitions, 1970 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:07:40,031 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:07:40,031 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 44 [2022-12-13 06:07:40,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:07:43,612 INFO L130 PetriNetUnfolder]: 32498/45835 cut-off events. [2022-12-13 06:07:43,612 INFO L131 PetriNetUnfolder]: For 6145/6145 co-relation queries the response was YES. [2022-12-13 06:07:43,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 257421 conditions, 45835 events. 32498/45835 cut-off events. For 6145/6145 co-relation queries the response was YES. Maximal size of possible extension queue 1371. Compared 284213 event pairs, 691 based on Foata normal form. 340/38900 useless extension candidates. Maximal degree in co-relation 257397. Up to 33454 conditions per place. [2022-12-13 06:07:43,912 INFO L137 encePairwiseOnDemand]: 35/44 looper letters, 268 selfloop transitions, 19 changer transitions 0/298 dead transitions. [2022-12-13 06:07:43,913 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 298 transitions, 3455 flow [2022-12-13 06:07:43,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 06:07:43,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 06:07:43,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 120 transitions. [2022-12-13 06:07:43,914 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6818181818181818 [2022-12-13 06:07:43,914 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, -27 predicate places. [2022-12-13 06:07:43,914 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 298 transitions, 3455 flow [2022-12-13 06:07:44,127 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 298 transitions, 3455 flow [2022-12-13 06:07:44,397 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:07:44,397 INFO L89 Accepts]: Start accepts. Operand has 70 places, 298 transitions, 3455 flow [2022-12-13 06:07:44,398 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:07:44,398 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:07:44,398 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 298 transitions, 3455 flow [2022-12-13 06:07:44,406 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 298 transitions, 3455 flow [2022-12-13 06:07:44,407 INFO L226 LiptonReduction]: Number of co-enabled transitions 2566 [2022-12-13 06:07:44,418 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:07:44,418 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 21 [2022-12-13 06:07:44,418 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 298 transitions, 3455 flow [2022-12-13 06:07:44,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:07:44,419 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:07:44,419 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:07:44,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 06:07:44,419 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 06:07:44,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:07:44,419 INFO L85 PathProgramCache]: Analyzing trace with hash 415563204, now seen corresponding path program 1 times [2022-12-13 06:07:44,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:07:44,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972724481] [2022-12-13 06:07:44,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:07:44,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:07:44,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:07:44,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 06:07:44,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:07:44,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972724481] [2022-12-13 06:07:44,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972724481] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:07:44,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:07:44,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 06:07:44,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807387739] [2022-12-13 06:07:44,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:07:44,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 06:07:44,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:07:44,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 06:07:44,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 06:07:44,518 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 44 [2022-12-13 06:07:44,519 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 298 transitions, 3455 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 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 06:07:44,519 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:07:44,519 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 44 [2022-12-13 06:07:44,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:07:50,767 INFO L130 PetriNetUnfolder]: 52464/71395 cut-off events. [2022-12-13 06:07:50,767 INFO L131 PetriNetUnfolder]: For 114031/116751 co-relation queries the response was YES. [2022-12-13 06:07:50,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438141 conditions, 71395 events. 52464/71395 cut-off events. For 114031/116751 co-relation queries the response was YES. Maximal size of possible extension queue 2159. Compared 432831 event pairs, 5392 based on Foata normal form. 890/61971 useless extension candidates. Maximal degree in co-relation 438114. Up to 60706 conditions per place. [2022-12-13 06:07:51,327 INFO L137 encePairwiseOnDemand]: 30/44 looper letters, 345 selfloop transitions, 85 changer transitions 0/471 dead transitions. [2022-12-13 06:07:51,327 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 471 transitions, 6387 flow [2022-12-13 06:07:51,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 06:07:51,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 06:07:51,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 96 transitions. [2022-12-13 06:07:51,328 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7272727272727273 [2022-12-13 06:07:51,331 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, -25 predicate places. [2022-12-13 06:07:51,331 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 471 transitions, 6387 flow [2022-12-13 06:07:51,661 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 471 transitions, 6387 flow [2022-12-13 06:07:52,167 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:07:52,183 INFO L89 Accepts]: Start accepts. Operand has 72 places, 471 transitions, 6387 flow [2022-12-13 06:07:52,185 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:07:52,185 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:07:52,185 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 471 transitions, 6387 flow [2022-12-13 06:07:52,203 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 471 transitions, 6387 flow [2022-12-13 06:07:52,213 INFO L226 LiptonReduction]: Number of co-enabled transitions 2750 [2022-12-13 06:07:52,246 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:07:52,259 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 92 [2022-12-13 06:07:52,260 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 471 transitions, 6387 flow [2022-12-13 06:07:52,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 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 06:07:52,260 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:07:52,260 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:07:52,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 06:07:52,260 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 06:07:52,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:07:52,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1225396820, now seen corresponding path program 1 times [2022-12-13 06:07:52,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:07:52,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611677307] [2022-12-13 06:07:52,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:07:52,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:07:52,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:07:52,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 06:07:52,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:07:52,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611677307] [2022-12-13 06:07:52,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611677307] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:07:52,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:07:52,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 06:07:52,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214298000] [2022-12-13 06:07:52,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:07:52,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 06:07:52,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:07:52,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 06:07:52,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 06:07:52,489 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 44 [2022-12-13 06:07:52,490 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 471 transitions, 6387 flow. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:07:52,490 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:07:52,490 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 44 [2022-12-13 06:07:52,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:08:01,500 INFO L130 PetriNetUnfolder]: 70025/95645 cut-off events. [2022-12-13 06:08:01,501 INFO L131 PetriNetUnfolder]: For 236021/240105 co-relation queries the response was YES. [2022-12-13 06:08:01,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 656807 conditions, 95645 events. 70025/95645 cut-off events. For 236021/240105 co-relation queries the response was YES. Maximal size of possible extension queue 2848. Compared 605734 event pairs, 8183 based on Foata normal form. 1859/83119 useless extension candidates. Maximal degree in co-relation 656777. Up to 81929 conditions per place. [2022-12-13 06:08:02,153 INFO L137 encePairwiseOnDemand]: 41/44 looper letters, 452 selfloop transitions, 21 changer transitions 64/575 dead transitions. [2022-12-13 06:08:02,153 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 575 transitions, 8929 flow [2022-12-13 06:08:02,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 06:08:02,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 06:08:02,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2022-12-13 06:08:02,154 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.75 [2022-12-13 06:08:02,154 INFO L295 CegarLoopForPetriNet]: 97 programPoint places, -23 predicate places. [2022-12-13 06:08:02,154 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 575 transitions, 8929 flow [2022-12-13 06:08:02,479 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 511 transitions, 7915 flow [2022-12-13 06:08:03,146 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:08:03,147 INFO L89 Accepts]: Start accepts. Operand has 74 places, 511 transitions, 7915 flow [2022-12-13 06:08:03,148 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:08:03,148 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:08:03,148 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 511 transitions, 7915 flow [2022-12-13 06:08:03,168 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 511 transitions, 7915 flow [2022-12-13 06:08:03,169 INFO L226 LiptonReduction]: Number of co-enabled transitions 2754 [2022-12-13 06:08:03,195 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:08:03,196 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 50 [2022-12-13 06:08:03,196 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 511 transitions, 7915 flow [2022-12-13 06:08:03,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:08:03,197 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:08:03,197 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:08:03,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 06:08:03,197 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 06:08:03,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:08:03,197 INFO L85 PathProgramCache]: Analyzing trace with hash -820350989, now seen corresponding path program 1 times [2022-12-13 06:08:03,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:08:03,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275461525] [2022-12-13 06:08:03,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:08:03,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:08:03,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:08:03,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 06:08:03,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:08:03,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275461525] [2022-12-13 06:08:03,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275461525] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:08:03,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:08:03,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 06:08:03,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471431926] [2022-12-13 06:08:03,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:08:03,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 06:08:03,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:08:03,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 06:08:03,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 06:08:03,297 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 44 [2022-12-13 06:08:03,297 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 511 transitions, 7915 flow. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:08:03,297 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:08:03,297 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 44 [2022-12-13 06:08:03,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand