/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix021_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 18:34:07,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 18:34:07,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 18:34:07,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 18:34:07,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 18:34:07,718 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 18:34:07,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 18:34:07,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 18:34:07,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 18:34:07,731 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 18:34:07,732 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 18:34:07,734 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 18:34:07,734 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 18:34:07,736 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 18:34:07,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 18:34:07,741 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 18:34:07,741 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 18:34:07,742 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 18:34:07,744 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 18:34:07,749 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 18:34:07,750 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 18:34:07,752 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 18:34:07,752 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 18:34:07,753 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 18:34:07,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 18:34:07,759 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 18:34:07,759 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 18:34:07,760 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 18:34:07,761 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 18:34:07,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 18:34:07,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 18:34:07,763 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 18:34:07,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 18:34:07,764 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 18:34:07,765 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 18:34:07,765 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 18:34:07,765 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 18:34:07,765 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 18:34:07,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 18:34:07,766 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 18:34:07,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 18:34:07,770 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-12 18:34:07,795 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 18:34:07,795 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 18:34:07,797 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 18:34:07,797 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 18:34:07,797 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 18:34:07,798 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 18:34:07,798 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 18:34:07,798 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 18:34:07,798 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 18:34:07,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 18:34:07,799 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 18:34:07,799 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 18:34:07,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 18:34:07,799 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 18:34:07,799 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 18:34:07,799 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 18:34:07,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 18:34:07,800 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 18:34:07,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 18:34:07,800 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 18:34:07,800 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 18:34:07,800 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 18:34:07,800 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 18:34:07,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 18:34:07,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 18:34:07,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 18:34:07,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 18:34:07,801 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 18:34:07,801 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 18:34:07,801 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 18:34:07,801 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-12 18:34:08,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 18:34:08,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 18:34:08,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 18:34:08,113 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 18:34:08,113 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 18:34:08,114 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix021_tso.oepc.i [2022-12-12 18:34:09,129 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 18:34:09,352 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 18:34:09,353 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix021_tso.oepc.i [2022-12-12 18:34:09,366 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/daa7c0416/c44757d689714ecd86f0da397b29a869/FLAGdba13f74d [2022-12-12 18:34:09,382 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/daa7c0416/c44757d689714ecd86f0da397b29a869 [2022-12-12 18:34:09,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 18:34:09,385 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 18:34:09,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 18:34:09,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 18:34:09,388 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 18:34:09,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 06:34:09" (1/1) ... [2022-12-12 18:34:09,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24c315ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:34:09, skipping insertion in model container [2022-12-12 18:34:09,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 06:34:09" (1/1) ... [2022-12-12 18:34:09,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 18:34:09,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 18:34:09,578 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/mix021_tso.oepc.i[949,962] [2022-12-12 18:34:09,703 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,703 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,704 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,704 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,704 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,705 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,705 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,705 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,706 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,707 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,707 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,707 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,707 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,712 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,713 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,713 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,714 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,717 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,717 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,717 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,718 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,724 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,725 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,725 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,730 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,734 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,734 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,735 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,736 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,736 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,737 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,755 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,756 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,757 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,762 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,762 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,773 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 18:34:09,791 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 18:34:09,803 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/mix021_tso.oepc.i[949,962] [2022-12-12 18:34:09,838 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,855 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,855 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,856 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,858 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,859 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,859 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,860 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,860 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:34:09,864 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:34:09,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 18:34:09,902 INFO L208 MainTranslator]: Completed translation [2022-12-12 18:34:09,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:34:09 WrapperNode [2022-12-12 18:34:09,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 18:34:09,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 18:34:09,905 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 18:34:09,905 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 18:34:09,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:34:09" (1/1) ... [2022-12-12 18:34:09,929 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:34:09" (1/1) ... [2022-12-12 18:34:09,954 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 159 [2022-12-12 18:34:09,954 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 18:34:09,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 18:34:09,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 18:34:09,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 18:34:09,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:34:09" (1/1) ... [2022-12-12 18:34:09,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:34:09" (1/1) ... [2022-12-12 18:34:09,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:34:09" (1/1) ... [2022-12-12 18:34:09,977 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:34:09" (1/1) ... [2022-12-12 18:34:09,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:34:09" (1/1) ... [2022-12-12 18:34:09,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:34:09" (1/1) ... [2022-12-12 18:34:09,987 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:34:09" (1/1) ... [2022-12-12 18:34:09,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:34:09" (1/1) ... [2022-12-12 18:34:10,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 18:34:10,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 18:34:10,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 18:34:10,006 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 18:34:10,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:34:09" (1/1) ... [2022-12-12 18:34:10,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 18:34:10,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 18:34:10,054 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-12 18:34:10,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-12 18:34:10,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 18:34:10,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 18:34:10,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 18:34:10,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 18:34:10,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 18:34:10,092 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-12 18:34:10,092 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-12 18:34:10,092 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-12 18:34:10,092 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-12 18:34:10,092 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-12 18:34:10,092 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-12 18:34:10,092 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-12 18:34:10,093 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-12 18:34:10,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 18:34:10,094 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 18:34:10,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 18:34:10,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 18:34:10,095 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 18:34:10,300 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 18:34:10,301 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 18:34:10,615 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 18:34:10,775 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 18:34:10,775 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 18:34:10,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 06:34:10 BoogieIcfgContainer [2022-12-12 18:34:10,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 18:34:10,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 18:34:10,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 18:34:10,782 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 18:34:10,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 06:34:09" (1/3) ... [2022-12-12 18:34:10,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d2660b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 06:34:10, skipping insertion in model container [2022-12-12 18:34:10,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:34:09" (2/3) ... [2022-12-12 18:34:10,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d2660b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 06:34:10, skipping insertion in model container [2022-12-12 18:34:10,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 06:34:10" (3/3) ... [2022-12-12 18:34:10,785 INFO L112 eAbstractionObserver]: Analyzing ICFG mix021_tso.oepc.i [2022-12-12 18:34:10,801 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 18:34:10,802 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-12 18:34:10,802 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 18:34:10,869 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 18:34:10,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 129 transitions, 278 flow [2022-12-12 18:34:10,981 INFO L130 PetriNetUnfolder]: 2/125 cut-off events. [2022-12-12 18:34:10,981 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 18:34:10,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 125 events. 2/125 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 71 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2022-12-12 18:34:10,992 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 129 transitions, 278 flow [2022-12-12 18:34:11,001 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 136 places, 125 transitions, 262 flow [2022-12-12 18:34:11,003 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 18:34:11,036 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 136 places, 125 transitions, 262 flow [2022-12-12 18:34:11,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 125 transitions, 262 flow [2022-12-12 18:34:11,086 INFO L130 PetriNetUnfolder]: 2/125 cut-off events. [2022-12-12 18:34:11,091 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 18:34:11,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 125 events. 2/125 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 71 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2022-12-12 18:34:11,095 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 136 places, 125 transitions, 262 flow [2022-12-12 18:34:11,095 INFO L226 LiptonReduction]: Number of co-enabled transitions 2986 [2022-12-12 18:34:19,756 INFO L241 LiptonReduction]: Total number of compositions: 98 [2022-12-12 18:34:19,776 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 18:34:19,782 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4e0be171, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 18:34:19,782 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-12 18:34:19,797 INFO L130 PetriNetUnfolder]: 0/17 cut-off events. [2022-12-12 18:34:19,797 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 18:34:19,798 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:34:19,798 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:34:19,799 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:34:19,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:34:19,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1718137257, now seen corresponding path program 1 times [2022-12-12 18:34:19,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:34:19,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540895369] [2022-12-12 18:34:19,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:34:19,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:34:19,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:34:20,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:34:20,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:34:20,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540895369] [2022-12-12 18:34:20,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540895369] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:34:20,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:34:20,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 18:34:20,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150376926] [2022-12-12 18:34:20,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:34:20,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 18:34:20,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:34:20,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 18:34:20,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 18:34:20,207 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 72 [2022-12-12 18:34:20,209 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 72 transitions, 156 flow. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:34:20,209 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:34:20,209 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 72 [2022-12-12 18:34:20,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:34:26,555 INFO L130 PetriNetUnfolder]: 45079/65069 cut-off events. [2022-12-12 18:34:26,556 INFO L131 PetriNetUnfolder]: For 99/99 co-relation queries the response was YES. [2022-12-12 18:34:26,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125053 conditions, 65069 events. 45079/65069 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 3600. Compared 495417 event pairs, 11775 based on Foata normal form. 0/39954 useless extension candidates. Maximal degree in co-relation 125041. Up to 50025 conditions per place. [2022-12-12 18:34:26,766 INFO L137 encePairwiseOnDemand]: 67/72 looper letters, 40 selfloop transitions, 2 changer transitions 56/113 dead transitions. [2022-12-12 18:34:26,766 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 113 transitions, 437 flow [2022-12-12 18:34:26,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 18:34:26,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 18:34:26,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 148 transitions. [2022-12-12 18:34:26,776 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6851851851851852 [2022-12-12 18:34:26,779 INFO L295 CegarLoopForPetriNet]: 84 programPoint places, 0 predicate places. [2022-12-12 18:34:26,779 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 113 transitions, 437 flow [2022-12-12 18:34:26,849 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 57 transitions, 213 flow [2022-12-12 18:34:26,850 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 57 transitions, 213 flow [2022-12-12 18:34:26,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:34:26,850 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:34:26,850 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:34:26,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 18:34:26,851 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:34:26,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:34:26,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1222412776, now seen corresponding path program 1 times [2022-12-12 18:34:26,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:34:26,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220378536] [2022-12-12 18:34:26,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:34:26,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:34:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:34:27,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:34:27,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:34:27,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220378536] [2022-12-12 18:34:27,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220378536] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:34:27,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:34:27,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 18:34:27,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312264975] [2022-12-12 18:34:27,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:34:27,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 18:34:27,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:34:27,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 18:34:27,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 18:34:27,116 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 72 [2022-12-12 18:34:27,117 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 57 transitions, 213 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:34:27,117 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:34:27,117 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 72 [2022-12-12 18:34:27,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:34:27,855 INFO L130 PetriNetUnfolder]: 6909/10357 cut-off events. [2022-12-12 18:34:27,855 INFO L131 PetriNetUnfolder]: For 1376/1386 co-relation queries the response was YES. [2022-12-12 18:34:27,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29030 conditions, 10357 events. 6909/10357 cut-off events. For 1376/1386 co-relation queries the response was YES. Maximal size of possible extension queue 529. Compared 64936 event pairs, 637 based on Foata normal form. 200/8572 useless extension candidates. Maximal degree in co-relation 29015. Up to 7537 conditions per place. [2022-12-12 18:34:27,908 INFO L137 encePairwiseOnDemand]: 69/72 looper letters, 63 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2022-12-12 18:34:27,908 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 79 transitions, 431 flow [2022-12-12 18:34:27,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 18:34:27,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 18:34:27,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2022-12-12 18:34:27,909 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.38425925925925924 [2022-12-12 18:34:27,910 INFO L295 CegarLoopForPetriNet]: 84 programPoint places, -26 predicate places. [2022-12-12 18:34:27,910 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 79 transitions, 431 flow [2022-12-12 18:34:27,948 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 79 transitions, 431 flow [2022-12-12 18:34:27,949 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 79 transitions, 431 flow [2022-12-12 18:34:27,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:34:27,949 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:34:27,949 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:34:27,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 18:34:27,949 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:34:27,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:34:27,950 INFO L85 PathProgramCache]: Analyzing trace with hash -2140734449, now seen corresponding path program 1 times [2022-12-12 18:34:27,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:34:27,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527885281] [2022-12-12 18:34:27,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:34:27,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:34:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:34:28,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:34:28,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:34:28,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527885281] [2022-12-12 18:34:28,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527885281] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:34:28,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:34:28,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:34:28,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801495707] [2022-12-12 18:34:28,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:34:28,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 18:34:28,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:34:28,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 18:34:28,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 18:34:28,323 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 72 [2022-12-12 18:34:28,323 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 79 transitions, 431 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:34:28,323 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:34:28,324 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 72 [2022-12-12 18:34:28,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:34:30,783 INFO L130 PetriNetUnfolder]: 22934/32762 cut-off events. [2022-12-12 18:34:30,783 INFO L131 PetriNetUnfolder]: For 15848/15848 co-relation queries the response was YES. [2022-12-12 18:34:30,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115791 conditions, 32762 events. 22934/32762 cut-off events. For 15848/15848 co-relation queries the response was YES. Maximal size of possible extension queue 1109. Compared 202115 event pairs, 2045 based on Foata normal form. 600/27557 useless extension candidates. Maximal degree in co-relation 115773. Up to 22492 conditions per place. [2022-12-12 18:34:31,113 INFO L137 encePairwiseOnDemand]: 60/72 looper letters, 143 selfloop transitions, 28 changer transitions 0/181 dead transitions. [2022-12-12 18:34:31,114 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 181 transitions, 1378 flow [2022-12-12 18:34:31,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 18:34:31,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 18:34:31,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 119 transitions. [2022-12-12 18:34:31,115 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4131944444444444 [2022-12-12 18:34:31,116 INFO L295 CegarLoopForPetriNet]: 84 programPoint places, -23 predicate places. [2022-12-12 18:34:31,116 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 181 transitions, 1378 flow [2022-12-12 18:34:31,277 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 181 transitions, 1378 flow [2022-12-12 18:34:31,277 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 181 transitions, 1378 flow [2022-12-12 18:34:31,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:34:31,278 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:34:31,278 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:34:31,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 18:34:31,278 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:34:31,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:34:31,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1938183912, now seen corresponding path program 1 times [2022-12-12 18:34:31,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:34:31,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130573723] [2022-12-12 18:34:31,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:34:31,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:34:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:34:31,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:34:31,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:34:31,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130573723] [2022-12-12 18:34:31,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130573723] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:34:31,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:34:31,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:34:31,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524452909] [2022-12-12 18:34:31,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:34:31,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 18:34:31,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:34:31,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 18:34:31,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 18:34:31,593 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 72 [2022-12-12 18:34:31,593 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 181 transitions, 1378 flow. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:34:31,593 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:34:31,593 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 72 [2022-12-12 18:34:31,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:34:33,964 INFO L130 PetriNetUnfolder]: 22755/32508 cut-off events. [2022-12-12 18:34:33,964 INFO L131 PetriNetUnfolder]: For 33413/33413 co-relation queries the response was YES. [2022-12-12 18:34:34,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141370 conditions, 32508 events. 22755/32508 cut-off events. For 33413/33413 co-relation queries the response was YES. Maximal size of possible extension queue 1097. Compared 200189 event pairs, 1230 based on Foata normal form. 40/26769 useless extension candidates. Maximal degree in co-relation 141349. Up to 25545 conditions per place. [2022-12-12 18:34:34,171 INFO L137 encePairwiseOnDemand]: 68/72 looper letters, 191 selfloop transitions, 9 changer transitions 0/221 dead transitions. [2022-12-12 18:34:34,171 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 221 transitions, 2102 flow [2022-12-12 18:34:34,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 18:34:34,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 18:34:34,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2022-12-12 18:34:34,173 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.39814814814814814 [2022-12-12 18:34:34,173 INFO L295 CegarLoopForPetriNet]: 84 programPoint places, -21 predicate places. [2022-12-12 18:34:34,173 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 221 transitions, 2102 flow [2022-12-12 18:34:34,318 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 221 transitions, 2102 flow [2022-12-12 18:34:34,319 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 221 transitions, 2102 flow [2022-12-12 18:34:34,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:34:34,319 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:34:34,319 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:34:34,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 18:34:34,319 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:34:34,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:34:34,319 INFO L85 PathProgramCache]: Analyzing trace with hash 45824144, now seen corresponding path program 1 times [2022-12-12 18:34:34,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:34:34,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12501912] [2022-12-12 18:34:34,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:34:34,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:34:34,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:34:34,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:34:34,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:34:34,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12501912] [2022-12-12 18:34:34,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12501912] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:34:34,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:34:34,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:34:34,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010443285] [2022-12-12 18:34:34,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:34:34,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 18:34:34,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:34:34,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 18:34:34,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 18:34:34,486 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 72 [2022-12-12 18:34:34,487 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 221 transitions, 2102 flow. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:34:34,488 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:34:34,488 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 72 [2022-12-12 18:34:34,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:34:37,280 INFO L130 PetriNetUnfolder]: 23065/32950 cut-off events. [2022-12-12 18:34:37,280 INFO L131 PetriNetUnfolder]: For 58892/58892 co-relation queries the response was YES. [2022-12-12 18:34:37,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170197 conditions, 32950 events. 23065/32950 cut-off events. For 58892/58892 co-relation queries the response was YES. Maximal size of possible extension queue 1109. Compared 202969 event pairs, 1240 based on Foata normal form. 25/27146 useless extension candidates. Maximal degree in co-relation 170173. Up to 25930 conditions per place. [2022-12-12 18:34:37,532 INFO L137 encePairwiseOnDemand]: 65/72 looper letters, 215 selfloop transitions, 27 changer transitions 0/263 dead transitions. [2022-12-12 18:34:37,533 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 263 transitions, 3018 flow [2022-12-12 18:34:37,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 18:34:37,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 18:34:37,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 116 transitions. [2022-12-12 18:34:37,536 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4027777777777778 [2022-12-12 18:34:37,537 INFO L295 CegarLoopForPetriNet]: 84 programPoint places, -18 predicate places. [2022-12-12 18:34:37,538 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 263 transitions, 3018 flow [2022-12-12 18:34:37,780 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 263 transitions, 3018 flow [2022-12-12 18:34:37,781 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 263 transitions, 3018 flow [2022-12-12 18:34:37,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:34:37,781 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:34:37,781 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:34:37,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 18:34:37,781 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:34:37,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:34:37,782 INFO L85 PathProgramCache]: Analyzing trace with hash -837358034, now seen corresponding path program 2 times [2022-12-12 18:34:37,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:34:37,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384475662] [2022-12-12 18:34:37,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:34:37,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:34:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:34:38,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:34:38,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:34:38,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384475662] [2022-12-12 18:34:38,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384475662] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:34:38,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:34:38,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 18:34:38,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955502308] [2022-12-12 18:34:38,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:34:38,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 18:34:38,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:34:38,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 18:34:38,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-12 18:34:38,084 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 72 [2022-12-12 18:34:38,084 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 263 transitions, 3018 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:34:38,084 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:34:38,084 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 72 [2022-12-12 18:34:38,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:34:40,895 INFO L130 PetriNetUnfolder]: 22597/32302 cut-off events. [2022-12-12 18:34:40,895 INFO L131 PetriNetUnfolder]: For 90019/90019 co-relation queries the response was YES. [2022-12-12 18:34:40,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192849 conditions, 32302 events. 22597/32302 cut-off events. For 90019/90019 co-relation queries the response was YES. Maximal size of possible extension queue 1071. Compared 198722 event pairs, 1165 based on Foata normal form. 100/26685 useless extension candidates. Maximal degree in co-relation 192822. Up to 25354 conditions per place. [2022-12-12 18:34:41,121 INFO L137 encePairwiseOnDemand]: 65/72 looper letters, 214 selfloop transitions, 27 changer transitions 0/262 dead transitions. [2022-12-12 18:34:41,121 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 262 transitions, 3488 flow [2022-12-12 18:34:41,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 18:34:41,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 18:34:41,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 115 transitions. [2022-12-12 18:34:41,122 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3993055555555556 [2022-12-12 18:34:41,123 INFO L295 CegarLoopForPetriNet]: 84 programPoint places, -15 predicate places. [2022-12-12 18:34:41,123 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 262 transitions, 3488 flow [2022-12-12 18:34:41,306 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 262 transitions, 3488 flow [2022-12-12 18:34:41,306 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 262 transitions, 3488 flow [2022-12-12 18:34:41,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:34:41,307 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:34:41,307 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:34:41,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 18:34:41,307 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:34:41,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:34:41,308 INFO L85 PathProgramCache]: Analyzing trace with hash 45928893, now seen corresponding path program 1 times [2022-12-12 18:34:41,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:34:41,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531884757] [2022-12-12 18:34:41,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:34:41,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:34:41,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:34:41,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:34:41,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:34:41,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531884757] [2022-12-12 18:34:41,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531884757] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:34:41,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:34:41,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 18:34:41,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995077474] [2022-12-12 18:34:41,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:34:41,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 18:34:41,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:34:41,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 18:34:41,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 18:34:41,673 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 72 [2022-12-12 18:34:41,673 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 262 transitions, 3488 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:34:41,673 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:34:41,673 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 72 [2022-12-12 18:34:41,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:34:44,531 INFO L130 PetriNetUnfolder]: 23333/33314 cut-off events. [2022-12-12 18:34:44,531 INFO L131 PetriNetUnfolder]: For 136279/136279 co-relation queries the response was YES. [2022-12-12 18:34:44,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225937 conditions, 33314 events. 23333/33314 cut-off events. For 136279/136279 co-relation queries the response was YES. Maximal size of possible extension queue 1111. Compared 204156 event pairs, 1123 based on Foata normal form. 80/27521 useless extension candidates. Maximal degree in co-relation 225907. Up to 26202 conditions per place. [2022-12-12 18:34:44,841 INFO L137 encePairwiseOnDemand]: 66/72 looper letters, 276 selfloop transitions, 20 changer transitions 0/317 dead transitions. [2022-12-12 18:34:44,842 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 317 transitions, 4851 flow [2022-12-12 18:34:44,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 18:34:44,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 18:34:44,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 114 transitions. [2022-12-12 18:34:44,843 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3958333333333333 [2022-12-12 18:34:44,843 INFO L295 CegarLoopForPetriNet]: 84 programPoint places, -12 predicate places. [2022-12-12 18:34:44,843 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 317 transitions, 4851 flow [2022-12-12 18:34:45,051 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 317 transitions, 4851 flow [2022-12-12 18:34:45,052 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 317 transitions, 4851 flow [2022-12-12 18:34:45,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:34:45,052 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:34:45,052 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:34:45,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 18:34:45,052 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:34:45,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:34:45,053 INFO L85 PathProgramCache]: Analyzing trace with hash 325687493, now seen corresponding path program 1 times [2022-12-12 18:34:45,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:34:45,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764810812] [2022-12-12 18:34:45,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:34:45,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:34:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:34:45,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:34:45,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:34:45,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764810812] [2022-12-12 18:34:45,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764810812] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:34:45,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:34:45,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 18:34:45,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436897717] [2022-12-12 18:34:45,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:34:45,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 18:34:45,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:34:45,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 18:34:45,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-12 18:34:45,566 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 72 [2022-12-12 18:34:45,566 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 317 transitions, 4851 flow. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:34:45,567 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:34:45,567 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 72 [2022-12-12 18:34:45,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:34:49,741 INFO L130 PetriNetUnfolder]: 25827/36634 cut-off events. [2022-12-12 18:34:49,741 INFO L131 PetriNetUnfolder]: For 144393/144393 co-relation queries the response was YES. [2022-12-12 18:34:49,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282008 conditions, 36634 events. 25827/36634 cut-off events. For 144393/144393 co-relation queries the response was YES. Maximal size of possible extension queue 1238. Compared 223733 event pairs, 1376 based on Foata normal form. 145/30497 useless extension candidates. Maximal degree in co-relation 281975. Up to 28643 conditions per place. [2022-12-12 18:34:50,070 INFO L137 encePairwiseOnDemand]: 59/72 looper letters, 324 selfloop transitions, 102 changer transitions 0/436 dead transitions. [2022-12-12 18:34:50,071 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 436 transitions, 7290 flow [2022-12-12 18:34:50,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-12 18:34:50,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-12 18:34:50,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 228 transitions. [2022-12-12 18:34:50,072 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3958333333333333 [2022-12-12 18:34:50,072 INFO L295 CegarLoopForPetriNet]: 84 programPoint places, -5 predicate places. [2022-12-12 18:34:50,072 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 436 transitions, 7290 flow [2022-12-12 18:34:50,294 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 436 transitions, 7290 flow [2022-12-12 18:34:50,294 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 436 transitions, 7290 flow [2022-12-12 18:34:50,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:34:50,295 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:34:50,295 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:34:50,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 18:34:50,295 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:34:50,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:34:50,295 INFO L85 PathProgramCache]: Analyzing trace with hash 906712905, now seen corresponding path program 2 times [2022-12-12 18:34:50,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:34:50,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238640654] [2022-12-12 18:34:50,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:34:50,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:34:50,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:34:50,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:34:50,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:34:50,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238640654] [2022-12-12 18:34:50,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238640654] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:34:50,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:34:50,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 18:34:50,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177321257] [2022-12-12 18:34:50,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:34:50,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 18:34:50,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:34:50,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 18:34:50,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-12 18:34:50,890 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 72 [2022-12-12 18:34:50,890 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 436 transitions, 7290 flow. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:34:50,891 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:34:50,891 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 72 [2022-12-12 18:34:50,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:34:55,305 INFO L130 PetriNetUnfolder]: 29359/41681 cut-off events. [2022-12-12 18:34:55,305 INFO L131 PetriNetUnfolder]: For 167098/167098 co-relation queries the response was YES. [2022-12-12 18:34:55,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358606 conditions, 41681 events. 29359/41681 cut-off events. For 167098/167098 co-relation queries the response was YES. Maximal size of possible extension queue 1451. Compared 260655 event pairs, 852 based on Foata normal form. 200/34735 useless extension candidates. Maximal degree in co-relation 358570. Up to 32359 conditions per place. [2022-12-12 18:34:55,713 INFO L137 encePairwiseOnDemand]: 65/72 looper letters, 435 selfloop transitions, 53 changer transitions 0/498 dead transitions. [2022-12-12 18:34:55,713 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 498 transitions, 9206 flow [2022-12-12 18:34:55,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 18:34:55,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 18:34:55,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 139 transitions. [2022-12-12 18:34:55,715 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3861111111111111 [2022-12-12 18:34:55,715 INFO L295 CegarLoopForPetriNet]: 84 programPoint places, -1 predicate places. [2022-12-12 18:34:55,715 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 498 transitions, 9206 flow [2022-12-12 18:34:56,085 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 498 transitions, 9206 flow [2022-12-12 18:34:56,085 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 498 transitions, 9206 flow [2022-12-12 18:34:56,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:34:56,086 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:34:56,086 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:34:56,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-12 18:34:56,086 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:34:56,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:34:56,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1508145862, now seen corresponding path program 1 times [2022-12-12 18:34:56,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:34:56,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061277950] [2022-12-12 18:34:56,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:34:56,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:34:56,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:34:56,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:34:56,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:34:56,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061277950] [2022-12-12 18:34:56,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061277950] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:34:56,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:34:56,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 18:34:56,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873297289] [2022-12-12 18:34:56,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:34:56,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 18:34:56,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:34:56,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 18:34:56,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-12 18:34:56,634 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 72 [2022-12-12 18:34:56,634 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 498 transitions, 9206 flow. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:34:56,634 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:34:56,634 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 72 [2022-12-12 18:34:56,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:35:01,643 INFO L130 PetriNetUnfolder]: 32835/46691 cut-off events. [2022-12-12 18:35:01,643 INFO L131 PetriNetUnfolder]: For 250978/250978 co-relation queries the response was YES. [2022-12-12 18:35:01,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 436483 conditions, 46691 events. 32835/46691 cut-off events. For 250978/250978 co-relation queries the response was YES. Maximal size of possible extension queue 1669. Compared 298835 event pairs, 867 based on Foata normal form. 150/38863 useless extension candidates. Maximal degree in co-relation 436444. Up to 35975 conditions per place. [2022-12-12 18:35:02,106 INFO L137 encePairwiseOnDemand]: 64/72 looper letters, 461 selfloop transitions, 49 changer transitions 0/576 dead transitions. [2022-12-12 18:35:02,106 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 576 transitions, 11792 flow [2022-12-12 18:35:02,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 18:35:02,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 18:35:02,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 144 transitions. [2022-12-12 18:35:02,107 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4 [2022-12-12 18:35:02,107 INFO L295 CegarLoopForPetriNet]: 84 programPoint places, 3 predicate places. [2022-12-12 18:35:02,108 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 576 transitions, 11792 flow [2022-12-12 18:35:02,423 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 576 transitions, 11792 flow [2022-12-12 18:35:02,426 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 576 transitions, 11792 flow [2022-12-12 18:35:02,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:35:02,426 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:35:02,426 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:35:02,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-12 18:35:02,426 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:35:02,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:35:02,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1955793054, now seen corresponding path program 2 times [2022-12-12 18:35:02,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:35:02,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553181981] [2022-12-12 18:35:02,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:35:02,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:35:02,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:35:02,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:35:02,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:35:02,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553181981] [2022-12-12 18:35:02,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553181981] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:35:02,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:35:02,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 18:35:02,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570667286] [2022-12-12 18:35:02,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:35:02,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 18:35:02,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:35:02,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 18:35:02,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-12 18:35:02,954 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 72 [2022-12-12 18:35:02,954 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 576 transitions, 11792 flow. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:35:02,954 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:35:02,954 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 72 [2022-12-12 18:35:02,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:35:09,047 INFO L130 PetriNetUnfolder]: 33731/48055 cut-off events. [2022-12-12 18:35:09,047 INFO L131 PetriNetUnfolder]: For 330677/330677 co-relation queries the response was YES. [2022-12-12 18:35:09,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 486956 conditions, 48055 events. 33731/48055 cut-off events. For 330677/330677 co-relation queries the response was YES. Maximal size of possible extension queue 1731. Compared 309998 event pairs, 827 based on Foata normal form. 150/39887 useless extension candidates. Maximal degree in co-relation 486914. Up to 37045 conditions per place. [2022-12-12 18:35:09,657 INFO L137 encePairwiseOnDemand]: 66/72 looper letters, 488 selfloop transitions, 62 changer transitions 0/616 dead transitions. [2022-12-12 18:35:09,658 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 616 transitions, 13778 flow [2022-12-12 18:35:09,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 18:35:09,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 18:35:09,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 145 transitions. [2022-12-12 18:35:09,659 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4027777777777778 [2022-12-12 18:35:09,659 INFO L295 CegarLoopForPetriNet]: 84 programPoint places, 7 predicate places. [2022-12-12 18:35:09,660 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 616 transitions, 13778 flow [2022-12-12 18:35:10,022 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 616 transitions, 13778 flow [2022-12-12 18:35:10,022 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 616 transitions, 13778 flow [2022-12-12 18:35:10,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:35:10,022 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:35:10,022 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:35:10,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-12 18:35:10,023 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:35:10,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:35:10,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1605808448, now seen corresponding path program 1 times [2022-12-12 18:35:10,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:35:10,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139595872] [2022-12-12 18:35:10,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:35:10,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:35:10,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:35:10,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:35:10,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:35:10,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139595872] [2022-12-12 18:35:10,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139595872] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:35:10,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:35:10,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 18:35:10,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266265470] [2022-12-12 18:35:10,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:35:10,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 18:35:10,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:35:10,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 18:35:10,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 18:35:10,306 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 72 [2022-12-12 18:35:10,306 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 616 transitions, 13778 flow. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:35:10,306 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:35:10,306 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 72 [2022-12-12 18:35:10,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:35:18,945 INFO L130 PetriNetUnfolder]: 46228/65999 cut-off events. [2022-12-12 18:35:18,945 INFO L131 PetriNetUnfolder]: For 438342/438342 co-relation queries the response was YES. [2022-12-12 18:35:19,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 737296 conditions, 65999 events. 46228/65999 cut-off events. For 438342/438342 co-relation queries the response was YES. Maximal size of possible extension queue 2525. Compared 446090 event pairs, 984 based on Foata normal form. 504/54497 useless extension candidates. Maximal degree in co-relation 737251. Up to 51982 conditions per place. [2022-12-12 18:35:19,485 INFO L137 encePairwiseOnDemand]: 59/72 looper letters, 620 selfloop transitions, 164 changer transitions 354/1148 dead transitions. [2022-12-12 18:35:19,485 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 1148 transitions, 28076 flow [2022-12-12 18:35:19,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 18:35:19,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 18:35:19,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 169 transitions. [2022-12-12 18:35:19,487 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3912037037037037 [2022-12-12 18:35:19,487 INFO L295 CegarLoopForPetriNet]: 84 programPoint places, 12 predicate places. [2022-12-12 18:35:19,487 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 1148 transitions, 28076 flow [2022-12-12 18:35:19,910 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 794 transitions, 19358 flow [2022-12-12 18:35:19,910 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 794 transitions, 19358 flow [2022-12-12 18:35:19,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:35:19,910 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:35:19,910 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:35:19,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-12 18:35:19,911 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:35:19,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:35:19,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1762736466, now seen corresponding path program 2 times [2022-12-12 18:35:19,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:35:19,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621568587] [2022-12-12 18:35:19,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:35:19,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:35:19,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:35:20,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:35:20,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:35:20,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621568587] [2022-12-12 18:35:20,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621568587] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:35:20,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:35:20,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 18:35:20,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747390048] [2022-12-12 18:35:20,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:35:20,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 18:35:20,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:35:20,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 18:35:20,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 18:35:20,007 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 72 [2022-12-12 18:35:20,007 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 794 transitions, 19358 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:35:20,007 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:35:20,007 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 72 [2022-12-12 18:35:20,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:35:33,617 INFO L130 PetriNetUnfolder]: 63490/90214 cut-off events. [2022-12-12 18:35:33,617 INFO L131 PetriNetUnfolder]: For 1250248/1255966 co-relation queries the response was YES. [2022-12-12 18:35:33,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1007226 conditions, 90214 events. 63490/90214 cut-off events. For 1250248/1255966 co-relation queries the response was YES. Maximal size of possible extension queue 3273. Compared 641822 event pairs, 5770 based on Foata normal form. 5208/78832 useless extension candidates. Maximal degree in co-relation 1007178. Up to 66373 conditions per place. [2022-12-12 18:35:34,603 INFO L137 encePairwiseOnDemand]: 57/72 looper letters, 799 selfloop transitions, 225 changer transitions 839/1950 dead transitions. [2022-12-12 18:35:34,603 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 1950 transitions, 53014 flow [2022-12-12 18:35:34,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 18:35:34,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 18:35:34,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 151 transitions. [2022-12-12 18:35:34,605 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.41944444444444445 [2022-12-12 18:35:34,605 INFO L295 CegarLoopForPetriNet]: 84 programPoint places, 16 predicate places. [2022-12-12 18:35:34,606 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 1950 transitions, 53014 flow [2022-12-12 18:35:35,150 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 1111 transitions, 29714 flow [2022-12-12 18:35:35,151 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 1111 transitions, 29714 flow [2022-12-12 18:35:35,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:35:35,151 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:35:35,151 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:35:35,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-12 18:35:35,151 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:35:35,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:35:35,152 INFO L85 PathProgramCache]: Analyzing trace with hash -2016812926, now seen corresponding path program 1 times [2022-12-12 18:35:35,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:35:35,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2225295] [2022-12-12 18:35:35,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:35:35,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:35:35,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:35:35,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:35:35,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:35:35,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2225295] [2022-12-12 18:35:35,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2225295] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:35:35,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:35:35,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 18:35:35,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951735178] [2022-12-12 18:35:35,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:35:35,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 18:35:35,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:35:35,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 18:35:35,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 18:35:35,252 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 72 [2022-12-12 18:35:35,252 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 1111 transitions, 29714 flow. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:35:35,252 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:35:35,252 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 72 [2022-12-12 18:35:35,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand