/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 06:13:00,658 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 06:13:00,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 06:13:00,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 06:13:00,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 06:13:00,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 06:13:00,712 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 06:13:00,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 06:13:00,716 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 06:13:00,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 06:13:00,724 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 06:13:00,726 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 06:13:00,726 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 06:13:00,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 06:13:00,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 06:13:00,731 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 06:13:00,732 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 06:13:00,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 06:13:00,734 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 06:13:00,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 06:13:00,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 06:13:00,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 06:13:00,742 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 06:13:00,743 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 06:13:00,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-04-02 06:13:00,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 06:13:00,755 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 06:13:00,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 06:13:00,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 06:13:00,757 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 06:13:00,757 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 06:13:00,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 06:13:00,758 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 06:13:00,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 06:13:00,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 06:13:00,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 06:13:00,761 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 06:13:00,791 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 06:13:00,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 06:13:00,792 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 06:13:00,792 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 06:13:00,792 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 06:13:00,793 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 06:13:00,793 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 06:13:00,793 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 06:13:00,793 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 06:13:00,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 06:13:00,794 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 06:13:00,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 06:13:00,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 06:13:00,795 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 06:13:00,795 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 06:13:00,795 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 06:13:00,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 06:13:00,795 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 06:13:00,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 06:13:00,795 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 06:13:00,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 06:13:00,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 06:13:00,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 06:13:00,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 06:13:00,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 06:13:00,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 06:13:00,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 06:13:00,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 06:13:00,797 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 06:13:00,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 06:13:00,797 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 06:13:00,797 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 06:13:00,797 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 06:13:00,797 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 06:13:00,798 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 06:13:00,798 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 06:13:01,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 06:13:01,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 06:13:01,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 06:13:01,081 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 06:13:01,081 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 06:13:01,082 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-04-02 06:13:02,286 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 06:13:02,775 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 06:13:02,776 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-04-02 06:13:02,824 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03241a1a7/c21f611d18174741b11db43aacf6b29e/FLAG3635ceaa9 [2023-04-02 06:13:02,840 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03241a1a7/c21f611d18174741b11db43aacf6b29e [2023-04-02 06:13:02,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 06:13:02,844 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 06:13:02,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 06:13:02,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 06:13:02,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 06:13:02,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 06:13:02" (1/1) ... [2023-04-02 06:13:02,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75cfd405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:13:02, skipping insertion in model container [2023-04-02 06:13:02,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 06:13:02" (1/1) ... [2023-04-02 06:13:02,861 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 06:13:03,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 06:13:03,576 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[26799,26812] [2023-04-02 06:13:03,622 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33129,33142] [2023-04-02 06:13:03,683 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[57661,57674] [2023-04-02 06:13:03,708 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[65696,65709] [2023-04-02 06:13:03,739 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[71499,71512] [2023-04-02 06:13:03,777 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[82182,82195] [2023-04-02 06:13:03,799 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[90107,90120] [2023-04-02 06:13:03,830 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[97295,97308] [2023-04-02 06:13:03,908 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[131822,131835] [2023-04-02 06:13:03,916 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[134930,134943] [2023-04-02 06:13:03,947 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[142923,142936] [2023-04-02 06:13:03,961 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[148707,148720] [2023-04-02 06:13:04,010 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[171333,171346] [2023-04-02 06:13:04,104 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[199069,199082] [2023-04-02 06:13:04,145 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[225502,225515] [2023-04-02 06:13:04,187 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[252663,252676] [2023-04-02 06:13:04,239 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[283670,283683] [2023-04-02 06:13:04,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 06:13:04,453 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 06:13:04,527 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[26799,26812] [2023-04-02 06:13:04,538 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33129,33142] [2023-04-02 06:13:04,575 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[57661,57674] [2023-04-02 06:13:04,587 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[65696,65709] [2023-04-02 06:13:04,597 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[71499,71512] [2023-04-02 06:13:04,620 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[82182,82195] [2023-04-02 06:13:04,632 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[90107,90120] [2023-04-02 06:13:04,643 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[97295,97308] [2023-04-02 06:13:04,696 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[131822,131835] [2023-04-02 06:13:04,702 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[134930,134943] [2023-04-02 06:13:04,754 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[142923,142936] [2023-04-02 06:13:04,765 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[148707,148720] [2023-04-02 06:13:04,800 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[171333,171346] [2023-04-02 06:13:04,842 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[199069,199082] [2023-04-02 06:13:04,880 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[225502,225515] [2023-04-02 06:13:04,919 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[252663,252676] [2023-04-02 06:13:04,962 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[283670,283683] [2023-04-02 06:13:05,128 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 06:13:05,164 INFO L208 MainTranslator]: Completed translation [2023-04-02 06:13:05,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:13:05 WrapperNode [2023-04-02 06:13:05,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 06:13:05,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 06:13:05,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 06:13:05,166 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 06:13:05,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:13:05" (1/1) ... [2023-04-02 06:13:05,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:13:05" (1/1) ... [2023-04-02 06:13:05,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:13:05" (1/1) ... [2023-04-02 06:13:05,259 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:13:05" (1/1) ... [2023-04-02 06:13:05,407 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:13:05" (1/1) ... [2023-04-02 06:13:05,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:13:05" (1/1) ... [2023-04-02 06:13:05,513 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:13:05" (1/1) ... [2023-04-02 06:13:05,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:13:05" (1/1) ... [2023-04-02 06:13:05,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 06:13:05,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 06:13:05,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 06:13:05,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 06:13:05,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:13:05" (1/1) ... [2023-04-02 06:13:05,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 06:13:05,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 06:13:05,619 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) [2023-04-02 06:13:05,640 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 [2023-04-02 06:13:05,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 06:13:05,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 06:13:05,661 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 06:13:05,661 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 06:13:05,661 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 06:13:05,661 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 06:13:05,661 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 06:13:05,661 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 06:13:05,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 06:13:05,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 06:13:05,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 06:13:05,662 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-02 06:13:05,662 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 06:13:05,662 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 06:13:05,662 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 06:13:05,662 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 06:13:05,663 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 06:13:05,663 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 06:13:05,663 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 06:13:05,663 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-04-02 06:13:05,663 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 06:13:05,664 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 06:13:05,664 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 06:13:05,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 06:13:05,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 06:13:05,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 06:13:05,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 06:13:05,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 06:13:05,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 06:13:06,202 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 06:13:06,203 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 06:13:11,798 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 06:13:11,841 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 06:13:11,841 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-02 06:13:11,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 06:13:11 BoogieIcfgContainer [2023-04-02 06:13:11,850 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 06:13:11,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 06:13:11,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 06:13:11,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 06:13:11,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 06:13:02" (1/3) ... [2023-04-02 06:13:11,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63a614a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 06:13:11, skipping insertion in model container [2023-04-02 06:13:11,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:13:05" (2/3) ... [2023-04-02 06:13:11,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63a614a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 06:13:11, skipping insertion in model container [2023-04-02 06:13:11,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 06:13:11" (3/3) ... [2023-04-02 06:13:11,861 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-04-02 06:13:11,878 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 06:13:11,879 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2023-04-02 06:13:12,094 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 06:13:12,099 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=true, 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;@5c07de00, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 06:13:12,099 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2023-04-02 06:13:12,119 INFO L276 IsEmpty]: Start isEmpty. Operand has 3537 states, 3515 states have (on average 1.8261735419630156) internal successors, (6419), 3532 states have internal predecessors, (6419), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-02 06:13:12,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-04-02 06:13:12,159 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:13:12,159 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:13:12,160 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr12ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-04-02 06:13:12,166 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:13:12,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1717567381, now seen corresponding path program 1 times [2023-04-02 06:13:12,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:13:12,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405426194] [2023-04-02 06:13:12,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:13:12,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:13:12,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:13:15,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:13:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:13:15,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:13:15,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:13:15,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405426194] [2023-04-02 06:13:15,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405426194] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:13:15,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:13:15,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:13:15,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5577570] [2023-04-02 06:13:15,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:13:15,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:13:15,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:13:15,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:13:15,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:13:15,495 INFO L87 Difference]: Start difference. First operand has 3537 states, 3515 states have (on average 1.8261735419630156) internal successors, (6419), 3532 states have internal predecessors, (6419), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:13:41,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:13:41,873 INFO L93 Difference]: Finished difference Result 6045 states and 10789 transitions. [2023-04-02 06:13:41,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:13:41,875 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2023-04-02 06:13:41,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:13:41,910 INFO L225 Difference]: With dead ends: 6045 [2023-04-02 06:13:41,910 INFO L226 Difference]: Without dead ends: 3577 [2023-04-02 06:13:41,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:13:41,928 INFO L413 NwaCegarLoop]: 2779 mSDtfsCounter, 17443 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 7837 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17443 SdHoareTripleChecker+Valid, 3545 SdHoareTripleChecker+Invalid, 7906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 7837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.5s IncrementalHoareTripleChecker+Time [2023-04-02 06:13:41,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17443 Valid, 3545 Invalid, 7906 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 7837 Invalid, 0 Unknown, 0 Unchecked, 23.5s Time] [2023-04-02 06:13:41,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3577 states. [2023-04-02 06:13:42,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3577 to 3557. [2023-04-02 06:13:42,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3557 states, 3537 states have (on average 1.349731410800113) internal successors, (4774), 3553 states have internal predecessors, (4774), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:13:42,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3557 states to 3557 states and 4777 transitions. [2023-04-02 06:13:42,170 INFO L78 Accepts]: Start accepts. Automaton has 3557 states and 4777 transitions. Word has length 68 [2023-04-02 06:13:42,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:13:42,171 INFO L495 AbstractCegarLoop]: Abstraction has 3557 states and 4777 transitions. [2023-04-02 06:13:42,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:13:42,172 INFO L276 IsEmpty]: Start isEmpty. Operand 3557 states and 4777 transitions. [2023-04-02 06:13:42,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-04-02 06:13:42,185 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:13:42,190 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:13:42,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 06:13:42,190 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-04-02 06:13:42,191 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:13:42,191 INFO L85 PathProgramCache]: Analyzing trace with hash 867750562, now seen corresponding path program 1 times [2023-04-02 06:13:42,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:13:42,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983161050] [2023-04-02 06:13:42,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:13:42,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:13:42,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:13:44,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:13:44,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:13:44,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:13:44,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:13:44,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983161050] [2023-04-02 06:13:44,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983161050] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:13:44,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:13:44,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:13:44,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995391053] [2023-04-02 06:13:44,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:13:44,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:13:44,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:13:44,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:13:44,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:13:44,501 INFO L87 Difference]: Start difference. First operand 3557 states and 4777 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:14:01,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:14:01,444 INFO L93 Difference]: Finished difference Result 6939 states and 9355 transitions. [2023-04-02 06:14:01,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:14:01,445 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2023-04-02 06:14:01,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:14:01,465 INFO L225 Difference]: With dead ends: 6939 [2023-04-02 06:14:01,465 INFO L226 Difference]: Without dead ends: 4773 [2023-04-02 06:14:01,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:14:01,472 INFO L413 NwaCegarLoop]: 1450 mSDtfsCounter, 12424 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 5772 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12424 SdHoareTripleChecker+Valid, 2202 SdHoareTripleChecker+Invalid, 5906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 5772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2023-04-02 06:14:01,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12424 Valid, 2202 Invalid, 5906 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [134 Valid, 5772 Invalid, 0 Unknown, 0 Unchecked, 14.6s Time] [2023-04-02 06:14:01,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4773 states. [2023-04-02 06:14:01,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4773 to 4749. [2023-04-02 06:14:01,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4749 states, 4729 states have (on average 1.3516599703954324) internal successors, (6392), 4745 states have internal predecessors, (6392), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:14:01,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4749 states to 4749 states and 6395 transitions. [2023-04-02 06:14:01,694 INFO L78 Accepts]: Start accepts. Automaton has 4749 states and 6395 transitions. Word has length 68 [2023-04-02 06:14:01,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:14:01,694 INFO L495 AbstractCegarLoop]: Abstraction has 4749 states and 6395 transitions. [2023-04-02 06:14:01,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:14:01,695 INFO L276 IsEmpty]: Start isEmpty. Operand 4749 states and 6395 transitions. [2023-04-02 06:14:01,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-04-02 06:14:01,704 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:14:01,704 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:14:01,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 06:14:01,705 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr16ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-04-02 06:14:01,705 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:14:01,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1243945886, now seen corresponding path program 1 times [2023-04-02 06:14:01,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:14:01,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472958199] [2023-04-02 06:14:01,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:14:01,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:14:01,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:14:03,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:14:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:14:03,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:14:03,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:14:03,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472958199] [2023-04-02 06:14:03,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472958199] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:14:03,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:14:03,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:14:03,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468501398] [2023-04-02 06:14:03,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:14:03,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:14:03,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:14:03,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:14:03,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:14:03,829 INFO L87 Difference]: Start difference. First operand 4749 states and 6395 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:14:18,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:14:18,661 INFO L93 Difference]: Finished difference Result 9723 states and 13137 transitions. [2023-04-02 06:14:18,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:14:18,662 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2023-04-02 06:14:18,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:14:18,683 INFO L225 Difference]: With dead ends: 9723 [2023-04-02 06:14:18,683 INFO L226 Difference]: Without dead ends: 6624 [2023-04-02 06:14:18,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:14:18,691 INFO L413 NwaCegarLoop]: 1495 mSDtfsCounter, 10939 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 5024 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10939 SdHoareTripleChecker+Valid, 2138 SdHoareTripleChecker+Invalid, 5088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 5024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2023-04-02 06:14:18,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10939 Valid, 2138 Invalid, 5088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 5024 Invalid, 0 Unknown, 0 Unchecked, 12.5s Time] [2023-04-02 06:14:18,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6624 states. [2023-04-02 06:14:19,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6624 to 6597. [2023-04-02 06:14:19,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6597 states, 6577 states have (on average 1.3585221225482742) internal successors, (8935), 6593 states have internal predecessors, (8935), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:14:19,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6597 states to 6597 states and 8938 transitions. [2023-04-02 06:14:19,031 INFO L78 Accepts]: Start accepts. Automaton has 6597 states and 8938 transitions. Word has length 69 [2023-04-02 06:14:19,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:14:19,032 INFO L495 AbstractCegarLoop]: Abstraction has 6597 states and 8938 transitions. [2023-04-02 06:14:19,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:14:19,032 INFO L276 IsEmpty]: Start isEmpty. Operand 6597 states and 8938 transitions. [2023-04-02 06:14:19,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-04-02 06:14:19,041 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:14:19,041 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:14:19,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 06:14:19,041 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr16ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-04-02 06:14:19,042 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:14:19,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1249911232, now seen corresponding path program 1 times [2023-04-02 06:14:19,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:14:19,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622179839] [2023-04-02 06:14:19,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:14:19,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:14:19,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:14:21,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:14:21,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:14:21,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:14:21,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:14:21,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622179839] [2023-04-02 06:14:21,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622179839] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:14:21,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:14:21,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 06:14:21,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801289140] [2023-04-02 06:14:21,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:14:21,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 06:14:21,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:14:21,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 06:14:21,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:14:21,616 INFO L87 Difference]: Start difference. First operand 6597 states and 8938 transitions. Second operand has 9 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:14:38,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:14:38,687 INFO L93 Difference]: Finished difference Result 10660 states and 15051 transitions. [2023-04-02 06:14:38,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 06:14:38,688 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2023-04-02 06:14:38,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:14:38,719 INFO L225 Difference]: With dead ends: 10660 [2023-04-02 06:14:38,719 INFO L226 Difference]: Without dead ends: 9893 [2023-04-02 06:14:38,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2023-04-02 06:14:38,726 INFO L413 NwaCegarLoop]: 1620 mSDtfsCounter, 10534 mSDsluCounter, 4779 mSDsCounter, 0 mSdLazyCounter, 9195 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10534 SdHoareTripleChecker+Valid, 6399 SdHoareTripleChecker+Invalid, 9222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 9195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:14:38,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10534 Valid, 6399 Invalid, 9222 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 9195 Invalid, 0 Unknown, 0 Unchecked, 14.4s Time] [2023-04-02 06:14:38,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9893 states. [2023-04-02 06:14:39,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9893 to 6524. [2023-04-02 06:14:39,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6524 states, 6504 states have (on average 1.3573185731857318) internal successors, (8828), 6520 states have internal predecessors, (8828), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:14:39,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6524 states to 6524 states and 8831 transitions. [2023-04-02 06:14:39,169 INFO L78 Accepts]: Start accepts. Automaton has 6524 states and 8831 transitions. Word has length 70 [2023-04-02 06:14:39,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:14:39,169 INFO L495 AbstractCegarLoop]: Abstraction has 6524 states and 8831 transitions. [2023-04-02 06:14:39,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:14:39,170 INFO L276 IsEmpty]: Start isEmpty. Operand 6524 states and 8831 transitions. [2023-04-02 06:14:39,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-04-02 06:14:39,179 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:14:39,179 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:14:39,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 06:14:39,180 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-04-02 06:14:39,180 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:14:39,180 INFO L85 PathProgramCache]: Analyzing trace with hash 4186653, now seen corresponding path program 1 times [2023-04-02 06:14:39,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:14:39,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920324698] [2023-04-02 06:14:39,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:14:39,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:14:39,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:14:41,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:14:41,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:14:41,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:14:41,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:14:41,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920324698] [2023-04-02 06:14:41,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920324698] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:14:41,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:14:41,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:14:41,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774202761] [2023-04-02 06:14:41,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:14:41,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:14:41,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:14:41,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:14:41,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:14:41,380 INFO L87 Difference]: Start difference. First operand 6524 states and 8831 transitions. Second operand has 6 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:14:53,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:14:53,990 INFO L93 Difference]: Finished difference Result 12742 states and 17435 transitions. [2023-04-02 06:14:53,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:14:53,990 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2023-04-02 06:14:53,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:14:54,010 INFO L225 Difference]: With dead ends: 12742 [2023-04-02 06:14:54,010 INFO L226 Difference]: Without dead ends: 8356 [2023-04-02 06:14:54,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:14:54,019 INFO L413 NwaCegarLoop]: 1366 mSDtfsCounter, 9340 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 4247 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9340 SdHoareTripleChecker+Valid, 1847 SdHoareTripleChecker+Invalid, 4276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 4247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:14:54,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9340 Valid, 1847 Invalid, 4276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 4247 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2023-04-02 06:14:54,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8356 states. [2023-04-02 06:14:54,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8356 to 8321. [2023-04-02 06:14:54,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8321 states, 8301 states have (on average 1.3736899168774845) internal successors, (11403), 8317 states have internal predecessors, (11403), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:14:54,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8321 states to 8321 states and 11406 transitions. [2023-04-02 06:14:54,502 INFO L78 Accepts]: Start accepts. Automaton has 8321 states and 11406 transitions. Word has length 70 [2023-04-02 06:14:54,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:14:54,502 INFO L495 AbstractCegarLoop]: Abstraction has 8321 states and 11406 transitions. [2023-04-02 06:14:54,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:14:54,502 INFO L276 IsEmpty]: Start isEmpty. Operand 8321 states and 11406 transitions. [2023-04-02 06:14:54,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-04-02 06:14:54,512 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:14:54,512 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:14:54,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 06:14:54,512 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-04-02 06:14:54,513 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:14:54,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1721766650, now seen corresponding path program 1 times [2023-04-02 06:14:54,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:14:54,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387899381] [2023-04-02 06:14:54,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:14:54,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:14:54,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:14:57,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:14:57,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:14:57,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:14:57,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:14:57,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387899381] [2023-04-02 06:14:57,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387899381] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:14:57,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:14:57,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:14:57,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312616899] [2023-04-02 06:14:57,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:14:57,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:14:57,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:14:57,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:14:57,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:14:57,141 INFO L87 Difference]: Start difference. First operand 8321 states and 11406 transitions. Second operand has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:15:13,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:15:13,628 INFO L93 Difference]: Finished difference Result 16211 states and 22905 transitions. [2023-04-02 06:15:13,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:15:13,628 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2023-04-02 06:15:13,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:15:13,662 INFO L225 Difference]: With dead ends: 16211 [2023-04-02 06:15:13,662 INFO L226 Difference]: Without dead ends: 14852 [2023-04-02 06:15:13,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:15:13,672 INFO L413 NwaCegarLoop]: 1453 mSDtfsCounter, 15240 mSDsluCounter, 4731 mSDsCounter, 0 mSdLazyCounter, 9784 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15240 SdHoareTripleChecker+Valid, 6184 SdHoareTripleChecker+Invalid, 9927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 9784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2023-04-02 06:15:13,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15240 Valid, 6184 Invalid, 9927 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [143 Valid, 9784 Invalid, 0 Unknown, 0 Unchecked, 13.5s Time] [2023-04-02 06:15:13,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14852 states. [2023-04-02 06:15:14,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14852 to 8264. [2023-04-02 06:15:14,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8264 states, 8244 states have (on average 1.3732411450752062) internal successors, (11321), 8260 states have internal predecessors, (11321), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:15:14,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8264 states to 8264 states and 11324 transitions. [2023-04-02 06:15:14,233 INFO L78 Accepts]: Start accepts. Automaton has 8264 states and 11324 transitions. Word has length 70 [2023-04-02 06:15:14,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:15:14,233 INFO L495 AbstractCegarLoop]: Abstraction has 8264 states and 11324 transitions. [2023-04-02 06:15:14,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:15:14,233 INFO L276 IsEmpty]: Start isEmpty. Operand 8264 states and 11324 transitions. [2023-04-02 06:15:14,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-04-02 06:15:14,243 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:15:14,243 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:15:14,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 06:15:14,244 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr16ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-04-02 06:15:14,244 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:15:14,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1599527587, now seen corresponding path program 1 times [2023-04-02 06:15:14,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:15:14,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361147075] [2023-04-02 06:15:14,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:15:14,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:15:14,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:15:17,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:15:17,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:15:17,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:15:17,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:15:17,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361147075] [2023-04-02 06:15:17,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361147075] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:15:17,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:15:17,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 06:15:17,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590434907] [2023-04-02 06:15:17,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:15:17,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:15:17,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:15:17,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:15:17,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:15:17,284 INFO L87 Difference]: Start difference. First operand 8264 states and 11324 transitions. Second operand has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 12 states have internal predecessors, (68), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:15:35,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:15:35,209 INFO L93 Difference]: Finished difference Result 15510 states and 22347 transitions. [2023-04-02 06:15:35,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 06:15:35,209 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 12 states have internal predecessors, (68), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2023-04-02 06:15:35,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:15:35,242 INFO L225 Difference]: With dead ends: 15510 [2023-04-02 06:15:35,242 INFO L226 Difference]: Without dead ends: 15506 [2023-04-02 06:15:35,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=164, Invalid=538, Unknown=0, NotChecked=0, Total=702 [2023-04-02 06:15:35,247 INFO L413 NwaCegarLoop]: 2655 mSDtfsCounter, 13244 mSDsluCounter, 10944 mSDsCounter, 0 mSdLazyCounter, 4644 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13244 SdHoareTripleChecker+Valid, 13599 SdHoareTripleChecker+Invalid, 4683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 4644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:15:35,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13244 Valid, 13599 Invalid, 4683 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 4644 Invalid, 0 Unknown, 0 Unchecked, 12.3s Time] [2023-04-02 06:15:35,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15506 states. [2023-04-02 06:15:35,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15506 to 8260. [2023-04-02 06:15:35,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8260 states, 8241 states have (on average 1.373255672855236) internal successors, (11317), 8256 states have internal predecessors, (11317), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:15:35,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8260 states to 8260 states and 11320 transitions. [2023-04-02 06:15:35,987 INFO L78 Accepts]: Start accepts. Automaton has 8260 states and 11320 transitions. Word has length 71 [2023-04-02 06:15:35,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:15:35,988 INFO L495 AbstractCegarLoop]: Abstraction has 8260 states and 11320 transitions. [2023-04-02 06:15:35,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 12 states have internal predecessors, (68), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:15:35,988 INFO L276 IsEmpty]: Start isEmpty. Operand 8260 states and 11320 transitions. [2023-04-02 06:15:35,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-04-02 06:15:35,997 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:15:35,997 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:15:35,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 06:15:35,998 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-04-02 06:15:35,998 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:15:35,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1371753736, now seen corresponding path program 1 times [2023-04-02 06:15:35,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:15:35,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622078842] [2023-04-02 06:15:35,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:15:35,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:15:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:15:38,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:15:38,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:15:38,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:15:38,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:15:38,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622078842] [2023-04-02 06:15:38,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622078842] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:15:38,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:15:38,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:15:38,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504626604] [2023-04-02 06:15:38,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:15:38,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:15:38,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:15:38,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:15:38,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:15:38,411 INFO L87 Difference]: Start difference. First operand 8260 states and 11320 transitions. Second operand has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:15:54,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:15:54,254 INFO L93 Difference]: Finished difference Result 11812 states and 16298 transitions. [2023-04-02 06:15:54,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-02 06:15:54,254 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2023-04-02 06:15:54,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:15:54,276 INFO L225 Difference]: With dead ends: 11812 [2023-04-02 06:15:54,276 INFO L226 Difference]: Without dead ends: 11804 [2023-04-02 06:15:54,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2023-04-02 06:15:54,280 INFO L413 NwaCegarLoop]: 1426 mSDtfsCounter, 13784 mSDsluCounter, 4490 mSDsCounter, 0 mSdLazyCounter, 8664 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13784 SdHoareTripleChecker+Valid, 5916 SdHoareTripleChecker+Invalid, 8740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 8664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:15:54,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13784 Valid, 5916 Invalid, 8740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 8664 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time] [2023-04-02 06:15:54,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11804 states. [2023-04-02 06:15:55,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11804 to 8260. [2023-04-02 06:15:55,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8260 states, 8241 states have (on average 1.373134328358209) internal successors, (11316), 8256 states have internal predecessors, (11316), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:15:55,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8260 states to 8260 states and 11319 transitions. [2023-04-02 06:15:55,194 INFO L78 Accepts]: Start accepts. Automaton has 8260 states and 11319 transitions. Word has length 71 [2023-04-02 06:15:55,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:15:55,195 INFO L495 AbstractCegarLoop]: Abstraction has 8260 states and 11319 transitions. [2023-04-02 06:15:55,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:15:55,195 INFO L276 IsEmpty]: Start isEmpty. Operand 8260 states and 11319 transitions. [2023-04-02 06:15:55,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-04-02 06:15:55,204 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:15:55,204 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:15:55,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 06:15:55,204 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-04-02 06:15:55,205 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:15:55,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1079097791, now seen corresponding path program 1 times [2023-04-02 06:15:55,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:15:55,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492967553] [2023-04-02 06:15:55,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:15:55,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:15:55,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:15:57,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:15:57,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:15:57,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:15:57,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:15:57,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492967553] [2023-04-02 06:15:57,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492967553] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:15:57,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:15:57,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:15:57,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379457786] [2023-04-02 06:15:57,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:15:57,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:15:57,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:15:57,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:15:57,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:15:57,698 INFO L87 Difference]: Start difference. First operand 8260 states and 11319 transitions. Second operand has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:16:11,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:16:11,947 INFO L93 Difference]: Finished difference Result 9700 states and 13330 transitions. [2023-04-02 06:16:11,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-02 06:16:11,947 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2023-04-02 06:16:11,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:16:11,963 INFO L225 Difference]: With dead ends: 9700 [2023-04-02 06:16:11,963 INFO L226 Difference]: Without dead ends: 9695 [2023-04-02 06:16:11,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2023-04-02 06:16:11,968 INFO L413 NwaCegarLoop]: 1374 mSDtfsCounter, 9693 mSDsluCounter, 4412 mSDsCounter, 0 mSdLazyCounter, 7801 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9693 SdHoareTripleChecker+Valid, 5786 SdHoareTripleChecker+Invalid, 7836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 7801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2023-04-02 06:16:11,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9693 Valid, 5786 Invalid, 7836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 7801 Invalid, 0 Unknown, 0 Unchecked, 11.2s Time] [2023-04-02 06:16:11,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9695 states. [2023-04-02 06:16:12,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9695 to 8260. [2023-04-02 06:16:12,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8260 states, 8241 states have (on average 1.373012983861182) internal successors, (11315), 8256 states have internal predecessors, (11315), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:16:12,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8260 states to 8260 states and 11318 transitions. [2023-04-02 06:16:12,766 INFO L78 Accepts]: Start accepts. Automaton has 8260 states and 11318 transitions. Word has length 71 [2023-04-02 06:16:12,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:16:12,766 INFO L495 AbstractCegarLoop]: Abstraction has 8260 states and 11318 transitions. [2023-04-02 06:16:12,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:16:12,767 INFO L276 IsEmpty]: Start isEmpty. Operand 8260 states and 11318 transitions. [2023-04-02 06:16:12,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-04-02 06:16:12,774 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:16:12,774 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:16:12,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 06:16:12,774 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-04-02 06:16:12,775 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:16:12,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1071999466, now seen corresponding path program 1 times [2023-04-02 06:16:12,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:16:12,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483494515] [2023-04-02 06:16:12,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:16:12,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:16:12,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:16:15,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:16:15,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:16:15,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:16:15,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:16:15,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483494515] [2023-04-02 06:16:15,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483494515] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:16:15,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:16:15,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 06:16:15,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555167801] [2023-04-02 06:16:15,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:16:15,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 06:16:15,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:16:15,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 06:16:15,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-04-02 06:16:15,440 INFO L87 Difference]: Start difference. First operand 8260 states and 11318 transitions. Second operand has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 10 states have internal predecessors, (68), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:16:34,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:16:34,534 INFO L93 Difference]: Finished difference Result 17185 states and 24826 transitions. [2023-04-02 06:16:34,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 06:16:34,535 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 10 states have internal predecessors, (68), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2023-04-02 06:16:34,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:16:34,568 INFO L225 Difference]: With dead ends: 17185 [2023-04-02 06:16:34,568 INFO L226 Difference]: Without dead ends: 15823 [2023-04-02 06:16:34,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=148, Invalid=358, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:16:34,577 INFO L413 NwaCegarLoop]: 2517 mSDtfsCounter, 11381 mSDsluCounter, 7349 mSDsCounter, 0 mSdLazyCounter, 4627 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11381 SdHoareTripleChecker+Valid, 9866 SdHoareTripleChecker+Invalid, 4649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 4627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:16:34,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11381 Valid, 9866 Invalid, 4649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 4627 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time] [2023-04-02 06:16:34,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15823 states. [2023-04-02 06:16:35,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15823 to 8196. [2023-04-02 06:16:35,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8196 states, 8178 states have (on average 1.3728295426754709) internal successors, (11227), 8192 states have internal predecessors, (11227), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:16:35,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8196 states to 8196 states and 11230 transitions. [2023-04-02 06:16:35,673 INFO L78 Accepts]: Start accepts. Automaton has 8196 states and 11230 transitions. Word has length 71 [2023-04-02 06:16:35,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:16:35,673 INFO L495 AbstractCegarLoop]: Abstraction has 8196 states and 11230 transitions. [2023-04-02 06:16:35,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 10 states have internal predecessors, (68), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:16:35,673 INFO L276 IsEmpty]: Start isEmpty. Operand 8196 states and 11230 transitions. [2023-04-02 06:16:35,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-04-02 06:16:35,682 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:16:35,682 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:16:35,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 06:16:35,683 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-04-02 06:16:35,683 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:16:35,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1212083037, now seen corresponding path program 1 times [2023-04-02 06:16:35,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:16:35,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036789155] [2023-04-02 06:16:35,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:16:35,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:16:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:16:38,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:16:38,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:16:38,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:16:38,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:16:38,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036789155] [2023-04-02 06:16:38,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036789155] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:16:38,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:16:38,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 06:16:38,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457209309] [2023-04-02 06:16:38,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:16:38,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:16:38,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:16:38,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:16:38,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:16:38,406 INFO L87 Difference]: Start difference. First operand 8196 states and 11230 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)