/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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 06:35:01,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 06:35:01,655 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 06:35:01,684 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 06:35:01,685 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 06:35:01,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 06:35:01,690 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 06:35:01,693 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 06:35:01,694 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 06:35:01,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 06:35:01,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 06:35:01,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2023-04-02 06:35:01,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 06:35:01,732 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 06:35:01,734 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 06:35:01,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 06:35:01,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 06:35:01,735 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 06:35:01,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 06:35:01,735 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 06:35:01,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 06:35:01,736 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 06:35:01,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 06:35:01,739 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 06:35:01,764 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 06:35:01,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 06:35:01,765 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 06:35:01,765 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 06:35:01,766 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 06:35:01,766 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 06:35:01,767 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 06:35:01,767 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 06:35:01,767 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 06:35:01,767 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 06:35:01,768 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 06:35:01,768 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 06:35:01,768 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 06:35:01,768 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 06:35:01,768 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 06:35:01,768 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 06:35:01,769 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 06:35:01,769 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 06:35:01,769 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 06:35:01,769 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 06:35:01,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 06:35:01,769 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 06:35:01,769 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 06:35:01,769 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 06:35:01,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 06:35:01,770 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 06:35:01,770 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 06:35:01,770 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 06:35:01,770 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 06:35:01,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 06:35:01,770 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 06:35:01,771 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 06:35:01,771 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 06:35:01,771 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 06:35:01,771 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 06:35:01,771 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 06:35:02,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 06:35:02,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 06:35:02,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 06:35:02,057 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 06:35:02,057 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 06:35:02,058 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2023-04-02 06:35:03,182 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 06:35:03,534 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 06:35:03,535 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2023-04-02 06:35:03,567 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0752989d2/26fdad67abee4828a44e152cc9aa3e19/FLAG0ecba0663 [2023-04-02 06:35:03,583 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0752989d2/26fdad67abee4828a44e152cc9aa3e19 [2023-04-02 06:35:03,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 06:35:03,587 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 06:35:03,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 06:35:03,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 06:35:03,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 06:35:03,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 06:35:03" (1/1) ... [2023-04-02 06:35:03,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f93c35d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:35:03, skipping insertion in model container [2023-04-02 06:35:03,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 06:35:03" (1/1) ... [2023-04-02 06:35:03,603 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 06:35:03,715 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 06:35:04,160 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[37686,37699] [2023-04-02 06:35:04,254 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[53661,53674] [2023-04-02 06:35:04,289 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[61658,61671] [2023-04-02 06:35:04,307 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[65640,65653] [2023-04-02 06:35:04,319 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[69487,69500] [2023-04-02 06:35:04,403 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[86510,86523] [2023-04-02 06:35:04,430 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[94544,94557] [2023-04-02 06:35:04,438 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[98563,98576] [2023-04-02 06:35:04,447 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[102447,102460] [2023-04-02 06:35:04,457 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[106961,106974] [2023-04-02 06:35:04,465 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[110869,110882] [2023-04-02 06:35:04,473 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[114888,114901] [2023-04-02 06:35:04,481 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[118772,118785] [2023-04-02 06:35:04,490 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[122907,122920] [2023-04-02 06:35:04,498 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[126958,126971] [2023-04-02 06:35:04,509 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[130958,130971] [2023-04-02 06:35:04,546 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 06:35:04,558 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 06:35:04,653 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[37686,37699] [2023-04-02 06:35:04,679 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[53661,53674] [2023-04-02 06:35:04,693 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[61658,61671] [2023-04-02 06:35:04,700 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[65640,65653] [2023-04-02 06:35:04,707 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[69487,69500] [2023-04-02 06:35:04,733 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[86510,86523] [2023-04-02 06:35:04,747 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[94544,94557] [2023-04-02 06:35:04,754 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[98563,98576] [2023-04-02 06:35:04,760 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[102447,102460] [2023-04-02 06:35:04,769 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[106961,106974] [2023-04-02 06:35:04,775 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[110869,110882] [2023-04-02 06:35:04,782 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[114888,114901] [2023-04-02 06:35:04,791 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[118772,118785] [2023-04-02 06:35:04,800 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[122907,122920] [2023-04-02 06:35:04,807 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[126958,126971] [2023-04-02 06:35:04,814 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.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[130958,130971] [2023-04-02 06:35:04,834 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 06:35:04,862 INFO L208 MainTranslator]: Completed translation [2023-04-02 06:35:04,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:35:04 WrapperNode [2023-04-02 06:35:04,863 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 06:35:04,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 06:35:04,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 06:35:04,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 06:35:04,874 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:35:04" (1/1) ... [2023-04-02 06:35:04,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:35:04" (1/1) ... [2023-04-02 06:35:04,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:35:04" (1/1) ... [2023-04-02 06:35:04,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:35:04" (1/1) ... [2023-04-02 06:35:04,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:35:04" (1/1) ... [2023-04-02 06:35:05,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:35:04" (1/1) ... [2023-04-02 06:35:05,021 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:35:04" (1/1) ... [2023-04-02 06:35:05,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:35:04" (1/1) ... [2023-04-02 06:35:05,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 06:35:05,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 06:35:05,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 06:35:05,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 06:35:05,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:35:04" (1/1) ... [2023-04-02 06:35:05,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 06:35:05,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 06:35:05,084 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 06:35:05,105 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 06:35:05,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 06:35:05,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 06:35:05,123 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 06:35:05,123 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 06:35:05,123 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 06:35:05,124 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 06:35:05,124 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 06:35:05,124 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 06:35:05,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 06:35:05,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 06:35:05,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 06:35:05,124 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 06:35:05,124 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 06:35:05,125 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 06:35:05,125 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 06:35:05,125 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 06:35:05,125 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 06:35:05,125 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 06:35:05,125 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-04-02 06:35:05,126 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-04-02 06:35:05,126 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 06:35:05,126 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 06:35:05,126 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 06:35:05,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 06:35:05,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 06:35:05,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 06:35:05,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 06:35:05,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 06:35:05,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 06:35:05,473 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 06:35:05,476 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 06:35:07,761 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 06:35:07,772 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 06:35:07,773 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-02 06:35:07,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 06:35:07 BoogieIcfgContainer [2023-04-02 06:35:07,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 06:35:07,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 06:35:07,778 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 06:35:07,780 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 06:35:07,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 06:35:03" (1/3) ... [2023-04-02 06:35:07,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5551a227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 06:35:07, skipping insertion in model container [2023-04-02 06:35:07,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:35:04" (2/3) ... [2023-04-02 06:35:07,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5551a227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 06:35:07, skipping insertion in model container [2023-04-02 06:35:07,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 06:35:07" (3/3) ... [2023-04-02 06:35:07,783 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2023-04-02 06:35:07,798 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 06:35:07,798 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-04-02 06:35:07,864 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 06:35:07,870 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;@3e5df292, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 06:35:07,870 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-04-02 06:35:07,880 INFO L276 IsEmpty]: Start isEmpty. Operand has 1198 states, 1177 states have (on average 1.7697536108751062) internal successors, (2083), 1193 states have internal predecessors, (2083), 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 06:35:07,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-04-02 06:35:07,902 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:35:07,902 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, 1, 1, 1, 1, 1] [2023-04-02 06:35:07,903 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:35:07,907 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:35:07,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1562138125, now seen corresponding path program 1 times [2023-04-02 06:35:07,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:35:07,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545339639] [2023-04-02 06:35:07,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:35:07,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:35:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:35:10,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:35:10,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:35:10,213 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 06:35:10,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:35:10,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545339639] [2023-04-02 06:35:10,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545339639] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:35:10,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:35:10,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:35:10,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128307246] [2023-04-02 06:35:10,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:35:10,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:35:10,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:35:10,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:35:10,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:35:10,262 INFO L87 Difference]: Start difference. First operand has 1198 states, 1177 states have (on average 1.7697536108751062) internal successors, (2083), 1193 states have internal predecessors, (2083), 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 14.8) internal successors, (74), 4 states have internal predecessors, (74), 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 06:35:17,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:35:17,344 INFO L93 Difference]: Finished difference Result 1492 states and 2548 transitions. [2023-04-02 06:35:17,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:35:17,346 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 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 77 [2023-04-02 06:35:17,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:35:17,362 INFO L225 Difference]: With dead ends: 1492 [2023-04-02 06:35:17,362 INFO L226 Difference]: Without dead ends: 880 [2023-04-02 06:35:17,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:35:17,371 INFO L413 NwaCegarLoop]: 866 mSDtfsCounter, 4374 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 2123 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4374 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 2143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:35:17,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4374 Valid, 903 Invalid, 2143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2123 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-04-02 06:35:17,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2023-04-02 06:35:17,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 880. [2023-04-02 06:35:17,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 861 states have (on average 1.2880371660859466) internal successors, (1109), 876 states have internal predecessors, (1109), 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 06:35:17,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1112 transitions. [2023-04-02 06:35:17,472 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1112 transitions. Word has length 77 [2023-04-02 06:35:17,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:35:17,473 INFO L495 AbstractCegarLoop]: Abstraction has 880 states and 1112 transitions. [2023-04-02 06:35:17,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 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 06:35:17,474 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1112 transitions. [2023-04-02 06:35:17,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-04-02 06:35:17,479 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:35:17,480 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, 1, 1, 1, 1, 1] [2023-04-02 06:35:17,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 06:35:17,488 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:35:17,489 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:35:17,489 INFO L85 PathProgramCache]: Analyzing trace with hash 2011788887, now seen corresponding path program 1 times [2023-04-02 06:35:17,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:35:17,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694461753] [2023-04-02 06:35:17,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:35:17,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:35:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:35:18,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:35:19,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:35:19,043 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 06:35:19,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:35:19,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694461753] [2023-04-02 06:35:19,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694461753] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:35:19,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:35:19,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:35:19,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336182171] [2023-04-02 06:35:19,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:35:19,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:35:19,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:35:19,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:35:19,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:35:19,048 INFO L87 Difference]: Start difference. First operand 880 states and 1112 transitions. Second operand has 6 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 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 06:35:23,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:35:23,268 INFO L93 Difference]: Finished difference Result 1090 states and 1373 transitions. [2023-04-02 06:35:23,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:35:23,268 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 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 77 [2023-04-02 06:35:23,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:35:23,272 INFO L225 Difference]: With dead ends: 1090 [2023-04-02 06:35:23,273 INFO L226 Difference]: Without dead ends: 654 [2023-04-02 06:35:23,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:35:23,276 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 2402 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2402 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-04-02 06:35:23,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2402 Valid, 454 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1227 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-04-02 06:35:23,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2023-04-02 06:35:23,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 654. [2023-04-02 06:35:23,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 635 states have (on average 1.300787401574803) internal successors, (826), 650 states have internal predecessors, (826), 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 06:35:23,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 829 transitions. [2023-04-02 06:35:23,312 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 829 transitions. Word has length 77 [2023-04-02 06:35:23,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:35:23,313 INFO L495 AbstractCegarLoop]: Abstraction has 654 states and 829 transitions. [2023-04-02 06:35:23,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 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 06:35:23,313 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 829 transitions. [2023-04-02 06:35:23,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-04-02 06:35:23,314 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:35:23,315 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, 1, 1, 1, 1, 1] [2023-04-02 06:35:23,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 06:35:23,315 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr5ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:35:23,315 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:35:23,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1977278258, now seen corresponding path program 1 times [2023-04-02 06:35:23,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:35:23,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300310987] [2023-04-02 06:35:23,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:35:23,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:35:23,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:35:24,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:35:24,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:35:24,729 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 06:35:24,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:35:24,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300310987] [2023-04-02 06:35:24,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300310987] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:35:24,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:35:24,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:35:24,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601603557] [2023-04-02 06:35:24,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:35:24,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:35:24,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:35:24,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:35:24,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:35:24,732 INFO L87 Difference]: Start difference. First operand 654 states and 829 transitions. Second operand has 6 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 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 06:35:27,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:35:27,943 INFO L93 Difference]: Finished difference Result 792 states and 993 transitions. [2023-04-02 06:35:27,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:35:27,944 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 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 77 [2023-04-02 06:35:27,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:35:27,946 INFO L225 Difference]: With dead ends: 792 [2023-04-02 06:35:27,946 INFO L226 Difference]: Without dead ends: 472 [2023-04-02 06:35:27,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:35:27,948 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 1687 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 859 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1687 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-04-02 06:35:27,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1687 Valid, 360 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 859 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-04-02 06:35:27,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2023-04-02 06:35:27,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 472. [2023-04-02 06:35:27,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 453 states have (on average 1.304635761589404) internal successors, (591), 468 states have internal predecessors, (591), 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 06:35:27,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 594 transitions. [2023-04-02 06:35:27,977 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 594 transitions. Word has length 77 [2023-04-02 06:35:27,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:35:27,978 INFO L495 AbstractCegarLoop]: Abstraction has 472 states and 594 transitions. [2023-04-02 06:35:27,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 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 06:35:27,978 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 594 transitions. [2023-04-02 06:35:27,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-04-02 06:35:27,980 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:35:27,980 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, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:35:27,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 06:35:27,980 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:35:27,981 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:35:27,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1679875659, now seen corresponding path program 1 times [2023-04-02 06:35:27,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:35:27,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952836188] [2023-04-02 06:35:27,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:35:27,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:35:28,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:35:29,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:35:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:35:29,319 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 06:35:29,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:35:29,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952836188] [2023-04-02 06:35:29,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952836188] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:35:29,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:35:29,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:35:29,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911800737] [2023-04-02 06:35:29,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:35:29,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:35:29,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:35:29,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:35:29,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:35:29,324 INFO L87 Difference]: Start difference. First operand 472 states and 594 transitions. Second operand has 6 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 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 06:35:32,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:35:32,736 INFO L93 Difference]: Finished difference Result 703 states and 895 transitions. [2023-04-02 06:35:32,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:35:32,737 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 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 79 [2023-04-02 06:35:32,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:35:32,739 INFO L225 Difference]: With dead ends: 703 [2023-04-02 06:35:32,739 INFO L226 Difference]: Without dead ends: 456 [2023-04-02 06:35:32,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:35:32,741 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 1611 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1611 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-04-02 06:35:32,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1611 Valid, 332 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-04-02 06:35:32,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2023-04-02 06:35:32,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2023-04-02 06:35:32,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 437 states have (on average 1.3089244851258581) internal successors, (572), 452 states have internal predecessors, (572), 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 06:35:32,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 575 transitions. [2023-04-02 06:35:32,773 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 575 transitions. Word has length 79 [2023-04-02 06:35:32,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:35:32,773 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 575 transitions. [2023-04-02 06:35:32,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 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 06:35:32,774 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 575 transitions. [2023-04-02 06:35:32,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-04-02 06:35:32,775 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:35:32,775 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:35:32,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 06:35:32,775 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:35:32,776 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:35:32,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1486829754, now seen corresponding path program 1 times [2023-04-02 06:35:32,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:35:32,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840653971] [2023-04-02 06:35:32,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:35:32,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:35:32,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:35:34,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:35:34,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:35:34,253 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 06:35:34,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:35:34,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840653971] [2023-04-02 06:35:34,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840653971] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:35:34,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:35:34,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:35:34,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596603501] [2023-04-02 06:35:34,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:35:34,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:35:34,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:35:34,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:35:34,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:35:34,256 INFO L87 Difference]: Start difference. First operand 456 states and 575 transitions. Second operand has 6 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 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 06:35:37,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:35:37,275 INFO L93 Difference]: Finished difference Result 678 states and 866 transitions. [2023-04-02 06:35:37,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:35:37,275 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 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 81 [2023-04-02 06:35:37,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:35:37,277 INFO L225 Difference]: With dead ends: 678 [2023-04-02 06:35:37,278 INFO L226 Difference]: Without dead ends: 427 [2023-04-02 06:35:37,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:35:37,279 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 1567 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1567 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-04-02 06:35:37,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1567 Valid, 333 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-04-02 06:35:37,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2023-04-02 06:35:37,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2023-04-02 06:35:37,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 408 states have (on average 1.3186274509803921) internal successors, (538), 423 states have internal predecessors, (538), 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 06:35:37,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 541 transitions. [2023-04-02 06:35:37,321 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 541 transitions. Word has length 81 [2023-04-02 06:35:37,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:35:37,321 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 541 transitions. [2023-04-02 06:35:37,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 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 06:35:37,321 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 541 transitions. [2023-04-02 06:35:37,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-04-02 06:35:37,322 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:35:37,322 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:35:37,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 06:35:37,323 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:35:37,323 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:35:37,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1792090573, now seen corresponding path program 1 times [2023-04-02 06:35:37,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:35:37,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736780193] [2023-04-02 06:35:37,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:35:37,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:35:37,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:35:39,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:35:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:35:39,252 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 06:35:39,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:35:39,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736780193] [2023-04-02 06:35:39,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736780193] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:35:39,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:35:39,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 06:35:39,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889140957] [2023-04-02 06:35:39,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:35:39,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 06:35:39,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:35:39,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 06:35:39,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-04-02 06:35:39,255 INFO L87 Difference]: Start difference. First operand 427 states and 541 transitions. Second operand has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 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 06:35:43,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:35:43,310 INFO L93 Difference]: Finished difference Result 886 states and 1164 transitions. [2023-04-02 06:35:43,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-02 06:35:43,311 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 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 83 [2023-04-02 06:35:43,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:35:43,314 INFO L225 Difference]: With dead ends: 886 [2023-04-02 06:35:43,314 INFO L226 Difference]: Without dead ends: 783 [2023-04-02 06:35:43,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=128, Invalid=334, Unknown=0, NotChecked=0, Total=462 [2023-04-02 06:35:43,316 INFO L413 NwaCegarLoop]: 371 mSDtfsCounter, 2645 mSDsluCounter, 1511 mSDsCounter, 0 mSdLazyCounter, 1949 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2645 SdHoareTripleChecker+Valid, 1882 SdHoareTripleChecker+Invalid, 1973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-04-02 06:35:43,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2645 Valid, 1882 Invalid, 1973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1949 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-04-02 06:35:43,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2023-04-02 06:35:43,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 427. [2023-04-02 06:35:43,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 408 states have (on average 1.3161764705882353) internal successors, (537), 423 states have internal predecessors, (537), 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 06:35:43,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 540 transitions. [2023-04-02 06:35:43,362 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 540 transitions. Word has length 83 [2023-04-02 06:35:43,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:35:43,362 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 540 transitions. [2023-04-02 06:35:43,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 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 06:35:43,363 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 540 transitions. [2023-04-02 06:35:43,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-04-02 06:35:43,363 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:35:43,364 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:35:43,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 06:35:43,364 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:35:43,364 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:35:43,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1305534067, now seen corresponding path program 1 times [2023-04-02 06:35:43,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:35:43,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144514842] [2023-04-02 06:35:43,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:35:43,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:35:43,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:35:44,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:35:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:35:44,986 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 06:35:44,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:35:44,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144514842] [2023-04-02 06:35:44,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144514842] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:35:44,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:35:44,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 06:35:44,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883157898] [2023-04-02 06:35:44,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:35:44,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 06:35:44,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:35:44,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 06:35:44,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:35:44,988 INFO L87 Difference]: Start difference. First operand 427 states and 540 transitions. Second operand has 9 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 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 06:35:48,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:35:48,252 INFO L93 Difference]: Finished difference Result 825 states and 1028 transitions. [2023-04-02 06:35:48,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 06:35:48,252 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 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 83 [2023-04-02 06:35:48,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:35:48,257 INFO L225 Difference]: With dead ends: 825 [2023-04-02 06:35:48,257 INFO L226 Difference]: Without dead ends: 596 [2023-04-02 06:35:48,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2023-04-02 06:35:48,258 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 2363 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 1232 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2363 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 1242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-04-02 06:35:48,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2363 Valid, 908 Invalid, 1242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1232 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-04-02 06:35:48,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2023-04-02 06:35:48,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 427. [2023-04-02 06:35:48,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 408 states have (on average 1.3137254901960784) internal successors, (536), 423 states have internal predecessors, (536), 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 06:35:48,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 539 transitions. [2023-04-02 06:35:48,307 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 539 transitions. Word has length 83 [2023-04-02 06:35:48,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:35:48,307 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 539 transitions. [2023-04-02 06:35:48,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 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 06:35:48,308 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 539 transitions. [2023-04-02 06:35:48,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-04-02 06:35:48,309 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:35:48,309 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:35:48,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 06:35:48,309 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr3ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:35:48,310 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:35:48,310 INFO L85 PathProgramCache]: Analyzing trace with hash -468614413, now seen corresponding path program 1 times [2023-04-02 06:35:48,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:35:48,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278192892] [2023-04-02 06:35:48,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:35:48,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:35:48,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:35:49,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:35:49,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:35:49,995 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 06:35:49,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:35:49,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278192892] [2023-04-02 06:35:49,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278192892] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:35:49,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:35:49,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:35:49,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412669147] [2023-04-02 06:35:49,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:35:49,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:35:49,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:35:49,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:35:49,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:35:49,997 INFO L87 Difference]: Start difference. First operand 427 states and 539 transitions. Second operand has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 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 06:35:53,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:35:53,687 INFO L93 Difference]: Finished difference Result 881 states and 1159 transitions. [2023-04-02 06:35:53,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:35:53,688 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 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 83 [2023-04-02 06:35:53,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:35:53,690 INFO L225 Difference]: With dead ends: 881 [2023-04-02 06:35:53,690 INFO L226 Difference]: Without dead ends: 787 [2023-04-02 06:35:53,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:35:53,692 INFO L413 NwaCegarLoop]: 359 mSDtfsCounter, 3376 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 1705 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3376 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 1723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-04-02 06:35:53,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3376 Valid, 1531 Invalid, 1723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1705 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-04-02 06:35:53,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2023-04-02 06:35:53,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 427. [2023-04-02 06:35:53,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 408 states have (on average 1.3112745098039216) internal successors, (535), 423 states have internal predecessors, (535), 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 06:35:53,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 538 transitions. [2023-04-02 06:35:53,749 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 538 transitions. Word has length 83 [2023-04-02 06:35:53,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:35:53,749 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 538 transitions. [2023-04-02 06:35:53,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 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 06:35:53,749 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 538 transitions. [2023-04-02 06:35:53,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-04-02 06:35:53,750 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:35:53,750 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:35:53,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 06:35:53,751 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr11ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:35:53,751 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:35:53,751 INFO L85 PathProgramCache]: Analyzing trace with hash -181984205, now seen corresponding path program 1 times [2023-04-02 06:35:53,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:35:53,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717371120] [2023-04-02 06:35:53,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:35:53,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:35:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:35:55,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:35:55,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:35:55,352 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 06:35:55,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:35:55,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717371120] [2023-04-02 06:35:55,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717371120] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:35:55,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:35:55,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:35:55,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411686971] [2023-04-02 06:35:55,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:35:55,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:35:55,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:35:55,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:35:55,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:35:55,355 INFO L87 Difference]: Start difference. First operand 427 states and 538 transitions. Second operand has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 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 06:35:59,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:35:59,302 INFO L93 Difference]: Finished difference Result 928 states and 1216 transitions. [2023-04-02 06:35:59,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:35:59,302 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 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 83 [2023-04-02 06:35:59,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:35:59,309 INFO L225 Difference]: With dead ends: 928 [2023-04-02 06:35:59,309 INFO L226 Difference]: Without dead ends: 791 [2023-04-02 06:35:59,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:35:59,312 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 1649 mSDsluCounter, 1471 mSDsCounter, 0 mSdLazyCounter, 2000 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1649 SdHoareTripleChecker+Valid, 1919 SdHoareTripleChecker+Invalid, 2015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-04-02 06:35:59,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1649 Valid, 1919 Invalid, 2015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2000 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-04-02 06:35:59,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2023-04-02 06:35:59,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 427. [2023-04-02 06:35:59,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 408 states have (on average 1.3088235294117647) internal successors, (534), 423 states have internal predecessors, (534), 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 06:35:59,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 537 transitions. [2023-04-02 06:35:59,370 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 537 transitions. Word has length 83 [2023-04-02 06:35:59,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:35:59,370 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 537 transitions. [2023-04-02 06:35:59,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 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 06:35:59,370 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 537 transitions. [2023-04-02 06:35:59,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-04-02 06:35:59,371 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:35:59,371 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:35:59,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 06:35:59,372 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:35:59,372 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:35:59,372 INFO L85 PathProgramCache]: Analyzing trace with hash 605914227, now seen corresponding path program 1 times [2023-04-02 06:35:59,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:35:59,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017244245] [2023-04-02 06:35:59,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:35:59,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:35:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:36:00,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:36:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:36:01,035 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 06:36:01,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:36:01,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017244245] [2023-04-02 06:36:01,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017244245] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:36:01,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:36:01,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:36:01,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245742606] [2023-04-02 06:36:01,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:36:01,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:36:01,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:36:01,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:36:01,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:36:01,037 INFO L87 Difference]: Start difference. First operand 427 states and 537 transitions. Second operand has 10 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 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 06:36:05,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:36:05,006 INFO L93 Difference]: Finished difference Result 854 states and 1116 transitions. [2023-04-02 06:36:05,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:36:05,007 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 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 84 [2023-04-02 06:36:05,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:36:05,009 INFO L225 Difference]: With dead ends: 854 [2023-04-02 06:36:05,010 INFO L226 Difference]: Without dead ends: 779 [2023-04-02 06:36:05,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:36:05,011 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 3047 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 1918 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3047 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 1936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:36:05,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3047 Valid, 1717 Invalid, 1936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1918 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-04-02 06:36:05,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2023-04-02 06:36:05,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 427. [2023-04-02 06:36:05,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 408 states have (on average 1.3063725490196079) internal successors, (533), 423 states have internal predecessors, (533), 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 06:36:05,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 536 transitions. [2023-04-02 06:36:05,080 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 536 transitions. Word has length 84 [2023-04-02 06:36:05,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:36:05,080 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 536 transitions. [2023-04-02 06:36:05,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 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 06:36:05,081 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 536 transitions. [2023-04-02 06:36:05,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-04-02 06:36:05,082 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:36:05,082 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:36:05,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 06:36:05,082 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:36:05,082 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:36:05,083 INFO L85 PathProgramCache]: Analyzing trace with hash 2039791512, now seen corresponding path program 1 times [2023-04-02 06:36:05,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:36:05,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316579343] [2023-04-02 06:36:05,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:36:05,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:36:05,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:36:06,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:36:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:36:06,677 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 06:36:06,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:36:06,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316579343] [2023-04-02 06:36:06,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316579343] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:36:06,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:36:06,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:36:06,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591641368] [2023-04-02 06:36:06,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:36:06,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:36:06,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:36:06,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:36:06,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:36:06,680 INFO L87 Difference]: Start difference. First operand 427 states and 536 transitions. Second operand has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 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 06:36:10,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:36:10,564 INFO L93 Difference]: Finished difference Result 858 states and 1118 transitions. [2023-04-02 06:36:10,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:36:10,565 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 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 85 [2023-04-02 06:36:10,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:36:10,567 INFO L225 Difference]: With dead ends: 858 [2023-04-02 06:36:10,567 INFO L226 Difference]: Without dead ends: 779 [2023-04-02 06:36:10,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:36:10,568 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 2977 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 1932 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2977 SdHoareTripleChecker+Valid, 1762 SdHoareTripleChecker+Invalid, 1950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:36:10,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2977 Valid, 1762 Invalid, 1950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1932 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-04-02 06:36:10,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2023-04-02 06:36:10,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 427. [2023-04-02 06:36:10,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 408 states have (on average 1.303921568627451) internal successors, (532), 423 states have internal predecessors, (532), 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 06:36:10,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 535 transitions. [2023-04-02 06:36:10,641 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 535 transitions. Word has length 85 [2023-04-02 06:36:10,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:36:10,641 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 535 transitions. [2023-04-02 06:36:10,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 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 06:36:10,641 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 535 transitions. [2023-04-02 06:36:10,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-04-02 06:36:10,642 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:36:10,642 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:36:10,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 06:36:10,643 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:36:10,643 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:36:10,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1665785480, now seen corresponding path program 1 times [2023-04-02 06:36:10,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:36:10,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726460838] [2023-04-02 06:36:10,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:36:10,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:36:10,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:36:12,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:36:12,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:36:12,492 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 06:36:12,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:36:12,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726460838] [2023-04-02 06:36:12,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726460838] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:36:12,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:36:12,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 06:36:12,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369992226] [2023-04-02 06:36:12,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:36:12,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 06:36:12,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:36:12,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 06:36:12,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-04-02 06:36:12,494 INFO L87 Difference]: Start difference. First operand 427 states and 535 transitions. Second operand has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 10 states have internal predecessors, (82), 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 06:36:19,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:36:19,039 INFO L93 Difference]: Finished difference Result 1095 states and 1445 transitions. [2023-04-02 06:36:19,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 06:36:19,039 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 10 states have internal predecessors, (82), 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 85 [2023-04-02 06:36:19,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:36:19,041 INFO L225 Difference]: With dead ends: 1095 [2023-04-02 06:36:19,042 INFO L226 Difference]: Without dead ends: 943 [2023-04-02 06:36:19,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=241, Invalid=689, Unknown=0, NotChecked=0, Total=930 [2023-04-02 06:36:19,042 INFO L413 NwaCegarLoop]: 630 mSDtfsCounter, 2633 mSDsluCounter, 2131 mSDsCounter, 0 mSdLazyCounter, 2979 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2633 SdHoareTripleChecker+Valid, 2761 SdHoareTripleChecker+Invalid, 3013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-04-02 06:36:19,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2633 Valid, 2761 Invalid, 3013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2979 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-04-02 06:36:19,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2023-04-02 06:36:19,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 427. [2023-04-02 06:36:19,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 408 states have (on average 1.3014705882352942) internal successors, (531), 423 states have internal predecessors, (531), 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 06:36:19,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 534 transitions. [2023-04-02 06:36:19,125 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 534 transitions. Word has length 85 [2023-04-02 06:36:19,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:36:19,125 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 534 transitions. [2023-04-02 06:36:19,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 10 states have internal predecessors, (82), 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 06:36:19,125 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 534 transitions. [2023-04-02 06:36:19,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-04-02 06:36:19,126 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:36:19,126 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:36:19,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 06:36:19,127 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr11ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:36:19,127 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:36:19,127 INFO L85 PathProgramCache]: Analyzing trace with hash -121450600, now seen corresponding path program 1 times [2023-04-02 06:36:19,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:36:19,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868973513] [2023-04-02 06:36:19,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:36:19,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:36:19,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:36:20,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:36:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:36:20,600 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 06:36:20,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:36:20,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868973513] [2023-04-02 06:36:20,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868973513] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:36:20,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:36:20,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:36:20,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302002152] [2023-04-02 06:36:20,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:36:20,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:36:20,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:36:20,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:36:20,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:36:20,602 INFO L87 Difference]: Start difference. First operand 427 states and 534 transitions. Second operand has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 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 06:36:25,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:36:25,053 INFO L93 Difference]: Finished difference Result 890 states and 1163 transitions. [2023-04-02 06:36:25,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:36:25,054 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 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 85 [2023-04-02 06:36:25,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:36:25,056 INFO L225 Difference]: With dead ends: 890 [2023-04-02 06:36:25,056 INFO L226 Difference]: Without dead ends: 787 [2023-04-02 06:36:25,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:36:25,057 INFO L413 NwaCegarLoop]: 553 mSDtfsCounter, 1467 mSDsluCounter, 1554 mSDsCounter, 0 mSdLazyCounter, 2330 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1467 SdHoareTripleChecker+Valid, 2107 SdHoareTripleChecker+Invalid, 2346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-04-02 06:36:25,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1467 Valid, 2107 Invalid, 2346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2330 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-04-02 06:36:25,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2023-04-02 06:36:25,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 427. [2023-04-02 06:36:25,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 408 states have (on average 1.2990196078431373) internal successors, (530), 423 states have internal predecessors, (530), 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 06:36:25,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 533 transitions. [2023-04-02 06:36:25,125 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 533 transitions. Word has length 85 [2023-04-02 06:36:25,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:36:25,126 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 533 transitions. [2023-04-02 06:36:25,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 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 06:36:25,126 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 533 transitions. [2023-04-02 06:36:25,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-04-02 06:36:25,127 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:36:25,127 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:36:25,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 06:36:25,127 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr7ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:36:25,128 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:36:25,128 INFO L85 PathProgramCache]: Analyzing trace with hash -7252168, now seen corresponding path program 1 times [2023-04-02 06:36:25,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:36:25,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373856194] [2023-04-02 06:36:25,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:36:25,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:36:25,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:36:26,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:36:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:36:26,689 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 06:36:26,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:36:26,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373856194] [2023-04-02 06:36:26,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373856194] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:36:26,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:36:26,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:36:26,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143227411] [2023-04-02 06:36:26,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:36:26,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:36:26,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:36:26,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:36:26,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:36:26,691 INFO L87 Difference]: Start difference. First operand 427 states and 533 transitions. Second operand has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 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 06:36:30,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:36:30,763 INFO L93 Difference]: Finished difference Result 858 states and 1116 transitions. [2023-04-02 06:36:30,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:36:30,763 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 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 85 [2023-04-02 06:36:30,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:36:30,765 INFO L225 Difference]: With dead ends: 858 [2023-04-02 06:36:30,765 INFO L226 Difference]: Without dead ends: 779 [2023-04-02 06:36:30,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:36:30,766 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 2824 mSDsluCounter, 1429 mSDsCounter, 0 mSdLazyCounter, 2029 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2824 SdHoareTripleChecker+Valid, 1879 SdHoareTripleChecker+Invalid, 2047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-04-02 06:36:30,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2824 Valid, 1879 Invalid, 2047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2029 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-04-02 06:36:30,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2023-04-02 06:36:30,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 427. [2023-04-02 06:36:30,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 408 states have (on average 1.2965686274509804) internal successors, (529), 423 states have internal predecessors, (529), 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 06:36:30,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 532 transitions. [2023-04-02 06:36:30,850 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 532 transitions. Word has length 85 [2023-04-02 06:36:30,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:36:30,850 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 532 transitions. [2023-04-02 06:36:30,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 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 06:36:30,850 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 532 transitions. [2023-04-02 06:36:30,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-04-02 06:36:30,851 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:36:30,851 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:36:30,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 06:36:30,852 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr3ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:36:30,852 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:36:30,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1249634152, now seen corresponding path program 1 times [2023-04-02 06:36:30,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:36:30,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611438464] [2023-04-02 06:36:30,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:36:30,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:36:30,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:36:32,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:36:32,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:36:32,627 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 06:36:32,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:36:32,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611438464] [2023-04-02 06:36:32,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611438464] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:36:32,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:36:32,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 06:36:32,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173800323] [2023-04-02 06:36:32,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:36:32,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:36:32,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:36:32,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:36:32,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:36:32,629 INFO L87 Difference]: Start difference. First operand 427 states and 532 transitions. Second operand has 13 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 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 06:36:39,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:36:39,200 INFO L93 Difference]: Finished difference Result 1288 states and 1730 transitions. [2023-04-02 06:36:39,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 06:36:39,200 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 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 85 [2023-04-02 06:36:39,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:36:39,203 INFO L225 Difference]: With dead ends: 1288 [2023-04-02 06:36:39,203 INFO L226 Difference]: Without dead ends: 1209 [2023-04-02 06:36:39,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=325, Invalid=935, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 06:36:39,204 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 5170 mSDsluCounter, 1714 mSDsCounter, 0 mSdLazyCounter, 2530 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5170 SdHoareTripleChecker+Valid, 2247 SdHoareTripleChecker+Invalid, 2702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 2530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:36:39,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5170 Valid, 2247 Invalid, 2702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 2530 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-04-02 06:36:39,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2023-04-02 06:36:39,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 432. [2023-04-02 06:36:39,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 413 states have (on average 1.2929782082324455) internal successors, (534), 428 states have internal predecessors, (534), 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 06:36:39,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 537 transitions. [2023-04-02 06:36:39,310 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 537 transitions. Word has length 85 [2023-04-02 06:36:39,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:36:39,310 INFO L495 AbstractCegarLoop]: Abstraction has 432 states and 537 transitions. [2023-04-02 06:36:39,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 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 06:36:39,310 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 537 transitions. [2023-04-02 06:36:39,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-04-02 06:36:39,311 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:36:39,311 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:36:39,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-04-02 06:36:39,312 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:36:39,312 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:36:39,312 INFO L85 PathProgramCache]: Analyzing trace with hash 105009161, now seen corresponding path program 1 times [2023-04-02 06:36:39,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:36:39,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518149078] [2023-04-02 06:36:39,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:36:39,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:36:39,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:36:40,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:36:40,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:36:40,830 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 06:36:40,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:36:40,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518149078] [2023-04-02 06:36:40,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518149078] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:36:40,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:36:40,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:36:40,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112891770] [2023-04-02 06:36:40,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:36:40,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:36:40,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:36:40,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:36:40,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:36:40,832 INFO L87 Difference]: Start difference. First operand 432 states and 537 transitions. Second operand has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 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 06:36:44,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:36:44,722 INFO L93 Difference]: Finished difference Result 833 states and 1075 transitions. [2023-04-02 06:36:44,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:36:44,722 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 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 85 [2023-04-02 06:36:44,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:36:44,724 INFO L225 Difference]: With dead ends: 833 [2023-04-02 06:36:44,724 INFO L226 Difference]: Without dead ends: 767 [2023-04-02 06:36:44,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:36:44,725 INFO L413 NwaCegarLoop]: 390 mSDtfsCounter, 3008 mSDsluCounter, 1231 mSDsCounter, 0 mSdLazyCounter, 1821 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3008 SdHoareTripleChecker+Valid, 1621 SdHoareTripleChecker+Invalid, 1839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:36:44,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3008 Valid, 1621 Invalid, 1839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1821 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-04-02 06:36:44,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2023-04-02 06:36:44,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 431. [2023-04-02 06:36:44,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 412 states have (on average 1.2912621359223302) internal successors, (532), 427 states have internal predecessors, (532), 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 06:36:44,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 535 transitions. [2023-04-02 06:36:44,824 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 535 transitions. Word has length 85 [2023-04-02 06:36:44,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:36:44,824 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 535 transitions. [2023-04-02 06:36:44,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 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 06:36:44,824 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 535 transitions. [2023-04-02 06:36:44,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-04-02 06:36:44,825 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:36:44,825 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:36:44,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-04-02 06:36:44,825 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:36:44,826 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:36:44,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1380402158, now seen corresponding path program 1 times [2023-04-02 06:36:44,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:36:44,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783196948] [2023-04-02 06:36:44,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:36:44,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:36:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:36:46,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:36:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:36:46,277 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 06:36:46,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:36:46,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783196948] [2023-04-02 06:36:46,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783196948] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:36:46,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:36:46,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:36:46,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602069700] [2023-04-02 06:36:46,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:36:46,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:36:46,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:36:46,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:36:46,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:36:46,279 INFO L87 Difference]: Start difference. First operand 431 states and 535 transitions. Second operand has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 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 06:36:50,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:36:50,035 INFO L93 Difference]: Finished difference Result 835 states and 1076 transitions. [2023-04-02 06:36:50,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:36:50,035 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 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 86 [2023-04-02 06:36:50,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:36:50,037 INFO L225 Difference]: With dead ends: 835 [2023-04-02 06:36:50,037 INFO L226 Difference]: Without dead ends: 767 [2023-04-02 06:36:50,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:36:50,046 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 3048 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 1803 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3048 SdHoareTripleChecker+Valid, 1588 SdHoareTripleChecker+Invalid, 1821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:36:50,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3048 Valid, 1588 Invalid, 1821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1803 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-04-02 06:36:50,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2023-04-02 06:36:50,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 431. [2023-04-02 06:36:50,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 412 states have (on average 1.2888349514563107) internal successors, (531), 427 states have internal predecessors, (531), 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 06:36:50,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 534 transitions. [2023-04-02 06:36:50,154 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 534 transitions. Word has length 86 [2023-04-02 06:36:50,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:36:50,154 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 534 transitions. [2023-04-02 06:36:50,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 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 06:36:50,154 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 534 transitions. [2023-04-02 06:36:50,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-04-02 06:36:50,155 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:36:50,155 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:36:50,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-04-02 06:36:50,155 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:36:50,156 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:36:50,156 INFO L85 PathProgramCache]: Analyzing trace with hash -859800946, now seen corresponding path program 1 times [2023-04-02 06:36:50,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:36:50,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328765320] [2023-04-02 06:36:50,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:36:50,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:36:50,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:36:51,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:36:51,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:36:51,591 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 06:36:51,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:36:51,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328765320] [2023-04-02 06:36:51,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328765320] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:36:51,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:36:51,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:36:51,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903445739] [2023-04-02 06:36:51,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:36:51,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:36:51,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:36:51,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:36:51,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:36:51,593 INFO L87 Difference]: Start difference. First operand 431 states and 534 transitions. Second operand has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 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 06:36:55,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:36:55,409 INFO L93 Difference]: Finished difference Result 835 states and 1075 transitions. [2023-04-02 06:36:55,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:36:55,410 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 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 86 [2023-04-02 06:36:55,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:36:55,411 INFO L225 Difference]: With dead ends: 835 [2023-04-02 06:36:55,412 INFO L226 Difference]: Without dead ends: 767 [2023-04-02 06:36:55,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:36:55,412 INFO L413 NwaCegarLoop]: 390 mSDtfsCounter, 2996 mSDsluCounter, 1230 mSDsCounter, 0 mSdLazyCounter, 1814 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2996 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 1832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:36:55,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2996 Valid, 1620 Invalid, 1832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1814 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-04-02 06:36:55,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2023-04-02 06:36:55,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 431. [2023-04-02 06:36:55,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 412 states have (on average 1.2864077669902914) internal successors, (530), 427 states have internal predecessors, (530), 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 06:36:55,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 533 transitions. [2023-04-02 06:36:55,494 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 533 transitions. Word has length 86 [2023-04-02 06:36:55,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:36:55,494 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 533 transitions. [2023-04-02 06:36:55,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 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 06:36:55,494 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 533 transitions. [2023-04-02 06:36:55,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-04-02 06:36:55,495 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:36:55,495 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:36:55,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-04-02 06:36:55,496 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:36:55,496 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:36:55,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1120730834, now seen corresponding path program 1 times [2023-04-02 06:36:55,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:36:55,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157573754] [2023-04-02 06:36:55,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:36:55,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:36:55,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:36:56,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:36:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:36:56,958 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 06:36:56,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:36:56,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157573754] [2023-04-02 06:36:56,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157573754] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:36:56,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:36:56,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:36:56,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117029349] [2023-04-02 06:36:56,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:36:56,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:36:56,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:36:56,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:36:56,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:36:56,960 INFO L87 Difference]: Start difference. First operand 431 states and 533 transitions. Second operand has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 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 06:37:01,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:37:01,046 INFO L93 Difference]: Finished difference Result 835 states and 1074 transitions. [2023-04-02 06:37:01,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:37:01,046 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 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 86 [2023-04-02 06:37:01,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:37:01,048 INFO L225 Difference]: With dead ends: 835 [2023-04-02 06:37:01,048 INFO L226 Difference]: Without dead ends: 767 [2023-04-02 06:37:01,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:37:01,049 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 2745 mSDsluCounter, 1360 mSDsCounter, 0 mSdLazyCounter, 2049 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2745 SdHoareTripleChecker+Valid, 1794 SdHoareTripleChecker+Invalid, 2066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-04-02 06:37:01,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2745 Valid, 1794 Invalid, 2066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2049 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-04-02 06:37:01,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2023-04-02 06:37:01,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 431. [2023-04-02 06:37:01,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 412 states have (on average 1.2839805825242718) internal successors, (529), 427 states have internal predecessors, (529), 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 06:37:01,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 532 transitions. [2023-04-02 06:37:01,143 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 532 transitions. Word has length 86 [2023-04-02 06:37:01,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:37:01,143 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 532 transitions. [2023-04-02 06:37:01,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 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 06:37:01,143 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 532 transitions. [2023-04-02 06:37:01,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-04-02 06:37:01,144 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:37:01,144 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:37:01,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-04-02 06:37:01,144 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:37:01,145 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:37:01,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1386684114, now seen corresponding path program 1 times [2023-04-02 06:37:01,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:37:01,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652991457] [2023-04-02 06:37:01,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:37:01,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:37:01,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:37:02,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:37:02,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:37:02,723 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 06:37:02,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:37:02,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652991457] [2023-04-02 06:37:02,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652991457] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:37:02,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:37:02,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 06:37:02,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553716425] [2023-04-02 06:37:02,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:37:02,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:37:02,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:37:02,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:37:02,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:37:02,725 INFO L87 Difference]: Start difference. First operand 431 states and 532 transitions. Second operand has 13 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 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 06:37:08,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:37:08,986 INFO L93 Difference]: Finished difference Result 1174 states and 1556 transitions. [2023-04-02 06:37:08,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 06:37:08,986 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 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 86 [2023-04-02 06:37:08,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:37:08,989 INFO L225 Difference]: With dead ends: 1174 [2023-04-02 06:37:08,989 INFO L226 Difference]: Without dead ends: 1106 [2023-04-02 06:37:08,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=325, Invalid=935, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 06:37:08,990 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 4596 mSDsluCounter, 1914 mSDsCounter, 0 mSdLazyCounter, 2533 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4596 SdHoareTripleChecker+Valid, 2356 SdHoareTripleChecker+Invalid, 2699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 2533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-04-02 06:37:08,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4596 Valid, 2356 Invalid, 2699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 2533 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-04-02 06:37:08,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2023-04-02 06:37:09,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 436. [2023-04-02 06:37:09,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 417 states have (on average 1.2805755395683454) internal successors, (534), 432 states have internal predecessors, (534), 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 06:37:09,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 537 transitions. [2023-04-02 06:37:09,102 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 537 transitions. Word has length 86 [2023-04-02 06:37:09,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:37:09,102 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 537 transitions. [2023-04-02 06:37:09,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 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 06:37:09,102 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 537 transitions. [2023-04-02 06:37:09,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-04-02 06:37:09,103 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:37:09,103 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:37:09,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-04-02 06:37:09,104 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr3ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:37:09,104 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:37:09,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1471366023, now seen corresponding path program 1 times [2023-04-02 06:37:09,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:37:09,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857293530] [2023-04-02 06:37:09,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:37:09,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:37:09,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:37:10,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:37:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:37:10,548 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 06:37:10,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:37:10,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857293530] [2023-04-02 06:37:10,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857293530] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:37:10,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:37:10,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:37:10,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713879555] [2023-04-02 06:37:10,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:37:10,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:37:10,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:37:10,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:37:10,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:37:10,550 INFO L87 Difference]: Start difference. First operand 436 states and 537 transitions. Second operand has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 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 06:37:14,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:37:14,858 INFO L93 Difference]: Finished difference Result 862 states and 1112 transitions. [2023-04-02 06:37:14,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:37:14,859 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 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 86 [2023-04-02 06:37:14,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:37:14,861 INFO L225 Difference]: With dead ends: 862 [2023-04-02 06:37:14,861 INFO L226 Difference]: Without dead ends: 783 [2023-04-02 06:37:14,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:37:14,862 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 1389 mSDsluCounter, 1497 mSDsCounter, 0 mSdLazyCounter, 2206 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1389 SdHoareTripleChecker+Valid, 1999 SdHoareTripleChecker+Invalid, 2221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-04-02 06:37:14,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1389 Valid, 1999 Invalid, 2221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2206 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-04-02 06:37:14,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2023-04-02 06:37:14,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 431. [2023-04-02 06:37:14,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 412 states have (on average 1.2815533980582525) internal successors, (528), 427 states have internal predecessors, (528), 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 06:37:14,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 531 transitions. [2023-04-02 06:37:14,998 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 531 transitions. Word has length 86 [2023-04-02 06:37:14,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:37:14,998 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 531 transitions. [2023-04-02 06:37:14,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 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 06:37:14,998 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 531 transitions. [2023-04-02 06:37:14,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-04-02 06:37:14,999 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:37:14,999 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:37:14,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-04-02 06:37:14,999 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:37:14,999 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:37:14,999 INFO L85 PathProgramCache]: Analyzing trace with hash -403038851, now seen corresponding path program 1 times [2023-04-02 06:37:15,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:37:15,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866637199] [2023-04-02 06:37:15,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:37:15,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:37:15,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:37:16,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:37:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:37:16,466 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 06:37:16,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:37:16,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866637199] [2023-04-02 06:37:16,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866637199] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:37:16,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:37:16,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:37:16,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197480616] [2023-04-02 06:37:16,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:37:16,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:37:16,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:37:16,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:37:16,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:37:16,468 INFO L87 Difference]: Start difference. First operand 431 states and 531 transitions. Second operand has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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 06:37:20,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:37:20,377 INFO L93 Difference]: Finished difference Result 867 states and 1116 transitions. [2023-04-02 06:37:20,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:37:20,378 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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 87 [2023-04-02 06:37:20,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:37:20,380 INFO L225 Difference]: With dead ends: 867 [2023-04-02 06:37:20,380 INFO L226 Difference]: Without dead ends: 783 [2023-04-02 06:37:20,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:37:20,381 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 3114 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 1781 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3114 SdHoareTripleChecker+Valid, 1757 SdHoareTripleChecker+Invalid, 1800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:37:20,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3114 Valid, 1757 Invalid, 1800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1781 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-04-02 06:37:20,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2023-04-02 06:37:20,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 431. [2023-04-02 06:37:20,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 412 states have (on average 1.279126213592233) internal successors, (527), 427 states have internal predecessors, (527), 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 06:37:20,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 530 transitions. [2023-04-02 06:37:20,490 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 530 transitions. Word has length 87 [2023-04-02 06:37:20,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:37:20,491 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 530 transitions. [2023-04-02 06:37:20,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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 06:37:20,491 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 530 transitions. [2023-04-02 06:37:20,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-04-02 06:37:20,492 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:37:20,492 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:37:20,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-04-02 06:37:20,492 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr5ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:37:20,493 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:37:20,493 INFO L85 PathProgramCache]: Analyzing trace with hash 2080546141, now seen corresponding path program 1 times [2023-04-02 06:37:20,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:37:20,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118548884] [2023-04-02 06:37:20,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:37:20,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:37:20,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:37:21,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:37:21,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:37:21,916 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 06:37:21,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:37:21,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118548884] [2023-04-02 06:37:21,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118548884] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:37:21,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:37:21,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:37:21,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608919064] [2023-04-02 06:37:21,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:37:21,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:37:21,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:37:21,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:37:21,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:37:21,918 INFO L87 Difference]: Start difference. First operand 431 states and 530 transitions. Second operand has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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 06:37:25,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:37:25,891 INFO L93 Difference]: Finished difference Result 833 states and 1068 transitions. [2023-04-02 06:37:25,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:37:25,892 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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 87 [2023-04-02 06:37:25,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:37:25,894 INFO L225 Difference]: With dead ends: 833 [2023-04-02 06:37:25,894 INFO L226 Difference]: Without dead ends: 762 [2023-04-02 06:37:25,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:37:25,895 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 2874 mSDsluCounter, 1296 mSDsCounter, 0 mSdLazyCounter, 1862 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2874 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 1880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:37:25,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2874 Valid, 1710 Invalid, 1880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1862 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-04-02 06:37:25,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2023-04-02 06:37:26,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 431. [2023-04-02 06:37:26,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 412 states have (on average 1.2766990291262137) internal successors, (526), 427 states have internal predecessors, (526), 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 06:37:26,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 529 transitions. [2023-04-02 06:37:26,007 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 529 transitions. Word has length 87 [2023-04-02 06:37:26,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:37:26,007 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 529 transitions. [2023-04-02 06:37:26,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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 06:37:26,008 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 529 transitions. [2023-04-02 06:37:26,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-04-02 06:37:26,009 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:37:26,009 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:37:26,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-04-02 06:37:26,009 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr10ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:37:26,009 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:37:26,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1220216349, now seen corresponding path program 1 times [2023-04-02 06:37:26,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:37:26,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601954065] [2023-04-02 06:37:26,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:37:26,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:37:26,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:37:27,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:37:27,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:37:27,560 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 06:37:27,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:37:27,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601954065] [2023-04-02 06:37:27,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601954065] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:37:27,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:37:27,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 06:37:27,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111454156] [2023-04-02 06:37:27,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:37:27,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:37:27,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:37:27,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:37:27,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:37:27,562 INFO L87 Difference]: Start difference. First operand 431 states and 529 transitions. Second operand has 13 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 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 06:37:35,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:37:35,247 INFO L93 Difference]: Finished difference Result 1440 states and 1929 transitions. [2023-04-02 06:37:35,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 06:37:35,247 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 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 87 [2023-04-02 06:37:35,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:37:35,251 INFO L225 Difference]: With dead ends: 1440 [2023-04-02 06:37:35,251 INFO L226 Difference]: Without dead ends: 1331 [2023-04-02 06:37:35,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=325, Invalid=935, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 06:37:35,252 INFO L413 NwaCegarLoop]: 687 mSDtfsCounter, 4532 mSDsluCounter, 2268 mSDsCounter, 0 mSdLazyCounter, 3286 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4532 SdHoareTripleChecker+Valid, 2955 SdHoareTripleChecker+Invalid, 3433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 3286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:37:35,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4532 Valid, 2955 Invalid, 3433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 3286 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-04-02 06:37:35,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2023-04-02 06:37:35,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 436. [2023-04-02 06:37:35,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 417 states have (on average 1.2733812949640289) internal successors, (531), 432 states have internal predecessors, (531), 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 06:37:35,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 534 transitions. [2023-04-02 06:37:35,414 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 534 transitions. Word has length 87 [2023-04-02 06:37:35,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:37:35,416 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 534 transitions. [2023-04-02 06:37:35,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 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 06:37:35,416 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 534 transitions. [2023-04-02 06:37:35,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-04-02 06:37:35,417 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:37:35,417 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:37:35,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-04-02 06:37:35,418 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:37:35,418 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:37:35,418 INFO L85 PathProgramCache]: Analyzing trace with hash -636639843, now seen corresponding path program 1 times [2023-04-02 06:37:35,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:37:35,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476030829] [2023-04-02 06:37:35,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:37:35,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:37:35,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:37:36,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:37:36,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:37:36,860 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 06:37:36,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:37:36,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476030829] [2023-04-02 06:37:36,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476030829] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:37:36,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:37:36,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:37:36,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906853439] [2023-04-02 06:37:36,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:37:36,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:37:36,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:37:36,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:37:36,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:37:36,863 INFO L87 Difference]: Start difference. First operand 436 states and 534 transitions. Second operand has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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 06:37:41,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:37:41,467 INFO L93 Difference]: Finished difference Result 807 states and 1023 transitions. [2023-04-02 06:37:41,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:37:41,467 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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 87 [2023-04-02 06:37:41,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:37:41,469 INFO L225 Difference]: With dead ends: 807 [2023-04-02 06:37:41,469 INFO L226 Difference]: Without dead ends: 788 [2023-04-02 06:37:41,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:37:41,470 INFO L413 NwaCegarLoop]: 541 mSDtfsCounter, 1882 mSDsluCounter, 1605 mSDsCounter, 0 mSdLazyCounter, 2423 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1882 SdHoareTripleChecker+Valid, 2146 SdHoareTripleChecker+Invalid, 2440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-04-02 06:37:41,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1882 Valid, 2146 Invalid, 2440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2423 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-04-02 06:37:41,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2023-04-02 06:37:41,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 436. [2023-04-02 06:37:41,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 417 states have (on average 1.2709832134292567) internal successors, (530), 432 states have internal predecessors, (530), 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 06:37:41,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 533 transitions. [2023-04-02 06:37:41,626 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 533 transitions. Word has length 87 [2023-04-02 06:37:41,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:37:41,626 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 533 transitions. [2023-04-02 06:37:41,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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 06:37:41,627 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 533 transitions. [2023-04-02 06:37:41,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-04-02 06:37:41,627 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:37:41,628 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:37:41,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-04-02 06:37:41,628 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:37:41,628 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:37:41,628 INFO L85 PathProgramCache]: Analyzing trace with hash 211875325, now seen corresponding path program 1 times [2023-04-02 06:37:41,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:37:41,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844540890] [2023-04-02 06:37:41,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:37:41,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:37:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:37:42,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:37:42,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:37:43,000 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 06:37:43,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:37:43,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844540890] [2023-04-02 06:37:43,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844540890] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:37:43,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:37:43,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:37:43,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691389499] [2023-04-02 06:37:43,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:37:43,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:37:43,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:37:43,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:37:43,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:37:43,003 INFO L87 Difference]: Start difference. First operand 436 states and 533 transitions. Second operand has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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 06:37:47,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:37:47,111 INFO L93 Difference]: Finished difference Result 773 states and 975 transitions. [2023-04-02 06:37:47,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:37:47,112 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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 87 [2023-04-02 06:37:47,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:37:47,113 INFO L225 Difference]: With dead ends: 773 [2023-04-02 06:37:47,114 INFO L226 Difference]: Without dead ends: 767 [2023-04-02 06:37:47,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:37:47,114 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 2802 mSDsluCounter, 1338 mSDsCounter, 0 mSdLazyCounter, 1896 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2802 SdHoareTripleChecker+Valid, 1766 SdHoareTripleChecker+Invalid, 1914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-04-02 06:37:47,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2802 Valid, 1766 Invalid, 1914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1896 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-04-02 06:37:47,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2023-04-02 06:37:47,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 436. [2023-04-02 06:37:47,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 417 states have (on average 1.2685851318944845) internal successors, (529), 432 states have internal predecessors, (529), 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 06:37:47,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 532 transitions. [2023-04-02 06:37:47,279 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 532 transitions. Word has length 87 [2023-04-02 06:37:47,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:37:47,279 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 532 transitions. [2023-04-02 06:37:47,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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 06:37:47,279 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 532 transitions. [2023-04-02 06:37:47,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-04-02 06:37:47,280 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:37:47,280 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:37:47,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-04-02 06:37:47,281 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:37:47,281 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:37:47,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1930801181, now seen corresponding path program 1 times [2023-04-02 06:37:47,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:37:47,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098174647] [2023-04-02 06:37:47,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:37:47,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:37:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:37:48,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:37:48,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:37:48,847 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 06:37:48,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:37:48,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098174647] [2023-04-02 06:37:48,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098174647] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:37:48,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:37:48,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 06:37:48,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089066674] [2023-04-02 06:37:48,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:37:48,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:37:48,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:37:48,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:37:48,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:37:48,849 INFO L87 Difference]: Start difference. First operand 436 states and 532 transitions. Second operand has 13 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 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 06:37:55,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:37:55,309 INFO L93 Difference]: Finished difference Result 1115 states and 1459 transitions. [2023-04-02 06:37:55,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 06:37:55,309 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 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 87 [2023-04-02 06:37:55,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:37:55,312 INFO L225 Difference]: With dead ends: 1115 [2023-04-02 06:37:55,312 INFO L226 Difference]: Without dead ends: 1109 [2023-04-02 06:37:55,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=325, Invalid=935, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 06:37:55,313 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 5320 mSDsluCounter, 1605 mSDsCounter, 0 mSdLazyCounter, 2300 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5320 SdHoareTripleChecker+Valid, 2086 SdHoareTripleChecker+Invalid, 2464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 2300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-04-02 06:37:55,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5320 Valid, 2086 Invalid, 2464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 2300 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-04-02 06:37:55,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2023-04-02 06:37:55,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 441. [2023-04-02 06:37:55,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 422 states have (on average 1.2654028436018958) internal successors, (534), 437 states have internal predecessors, (534), 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 06:37:55,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 537 transitions. [2023-04-02 06:37:55,459 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 537 transitions. Word has length 87 [2023-04-02 06:37:55,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:37:55,460 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 537 transitions. [2023-04-02 06:37:55,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 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 06:37:55,460 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 537 transitions. [2023-04-02 06:37:55,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-04-02 06:37:55,461 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:37:55,461 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:37:55,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-04-02 06:37:55,462 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr11ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:37:55,463 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:37:55,463 INFO L85 PathProgramCache]: Analyzing trace with hash 458162301, now seen corresponding path program 1 times [2023-04-02 06:37:55,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:37:55,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219876615] [2023-04-02 06:37:55,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:37:55,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:37:55,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:37:56,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:37:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:37:56,929 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 06:37:56,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:37:56,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219876615] [2023-04-02 06:37:56,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219876615] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:37:56,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:37:56,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:37:56,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706574353] [2023-04-02 06:37:56,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:37:56,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:37:56,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:37:56,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:37:56,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:37:56,931 INFO L87 Difference]: Start difference. First operand 441 states and 537 transitions. Second operand has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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 06:38:00,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:38:00,964 INFO L93 Difference]: Finished difference Result 838 states and 1069 transitions. [2023-04-02 06:38:00,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:38:00,965 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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 87 [2023-04-02 06:38:00,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:38:00,967 INFO L225 Difference]: With dead ends: 838 [2023-04-02 06:38:00,967 INFO L226 Difference]: Without dead ends: 767 [2023-04-02 06:38:00,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:38:00,968 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 2814 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 1876 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2814 SdHoareTripleChecker+Valid, 1749 SdHoareTripleChecker+Invalid, 1894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:38:00,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2814 Valid, 1749 Invalid, 1894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1876 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-04-02 06:38:00,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2023-04-02 06:38:01,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 441. [2023-04-02 06:38:01,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 422 states have (on average 1.2630331753554502) internal successors, (533), 437 states have internal predecessors, (533), 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 06:38:01,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 536 transitions. [2023-04-02 06:38:01,114 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 536 transitions. Word has length 87 [2023-04-02 06:38:01,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:38:01,115 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 536 transitions. [2023-04-02 06:38:01,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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 06:38:01,115 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 536 transitions. [2023-04-02 06:38:01,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-04-02 06:38:01,115 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:38:01,115 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:38:01,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-04-02 06:38:01,116 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr13ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:38:01,116 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:38:01,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1327219293, now seen corresponding path program 1 times [2023-04-02 06:38:01,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:38:01,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307855978] [2023-04-02 06:38:01,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:38:01,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:38:01,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:02,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:38:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:02,510 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 06:38:02,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:38:02,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307855978] [2023-04-02 06:38:02,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307855978] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:38:02,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:38:02,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:38:02,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048598834] [2023-04-02 06:38:02,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:38:02,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:38:02,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:38:02,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:38:02,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:38:02,512 INFO L87 Difference]: Start difference. First operand 441 states and 536 transitions. Second operand has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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 06:38:06,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:38:06,908 INFO L93 Difference]: Finished difference Result 877 states and 1118 transitions. [2023-04-02 06:38:06,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:38:06,909 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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 87 [2023-04-02 06:38:06,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:38:06,911 INFO L225 Difference]: With dead ends: 877 [2023-04-02 06:38:06,911 INFO L226 Difference]: Without dead ends: 793 [2023-04-02 06:38:06,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:38:06,912 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 1373 mSDsluCounter, 1490 mSDsCounter, 0 mSdLazyCounter, 2152 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1373 SdHoareTripleChecker+Valid, 1992 SdHoareTripleChecker+Invalid, 2167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-04-02 06:38:06,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1373 Valid, 1992 Invalid, 2167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2152 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-04-02 06:38:06,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2023-04-02 06:38:07,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 441. [2023-04-02 06:38:07,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 422 states have (on average 1.2606635071090047) internal successors, (532), 437 states have internal predecessors, (532), 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 06:38:07,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 535 transitions. [2023-04-02 06:38:07,045 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 535 transitions. Word has length 87 [2023-04-02 06:38:07,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:38:07,046 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 535 transitions. [2023-04-02 06:38:07,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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 06:38:07,046 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 535 transitions. [2023-04-02 06:38:07,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-04-02 06:38:07,046 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:38:07,046 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:38:07,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-04-02 06:38:07,047 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr7ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:38:07,047 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:38:07,047 INFO L85 PathProgramCache]: Analyzing trace with hash 42177117, now seen corresponding path program 1 times [2023-04-02 06:38:07,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:38:07,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247308294] [2023-04-02 06:38:07,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:38:07,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:38:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:08,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:38:08,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:08,620 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 06:38:08,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:38:08,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247308294] [2023-04-02 06:38:08,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247308294] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:38:08,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:38:08,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 06:38:08,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886936199] [2023-04-02 06:38:08,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:38:08,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:38:08,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:38:08,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:38:08,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:38:08,622 INFO L87 Difference]: Start difference. First operand 441 states and 535 transitions. Second operand has 13 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 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 06:38:15,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:38:15,424 INFO L93 Difference]: Finished difference Result 1180 states and 1553 transitions. [2023-04-02 06:38:15,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 06:38:15,425 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 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 87 [2023-04-02 06:38:15,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:38:15,428 INFO L225 Difference]: With dead ends: 1180 [2023-04-02 06:38:15,428 INFO L226 Difference]: Without dead ends: 1109 [2023-04-02 06:38:15,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=325, Invalid=935, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 06:38:15,429 INFO L413 NwaCegarLoop]: 493 mSDtfsCounter, 4318 mSDsluCounter, 1972 mSDsCounter, 0 mSdLazyCounter, 2578 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4318 SdHoareTripleChecker+Valid, 2465 SdHoareTripleChecker+Invalid, 2736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 2578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:38:15,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4318 Valid, 2465 Invalid, 2736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 2578 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-04-02 06:38:15,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2023-04-02 06:38:15,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 446. [2023-04-02 06:38:15,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 427 states have (on average 1.2576112412177987) internal successors, (537), 442 states have internal predecessors, (537), 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 06:38:15,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 540 transitions. [2023-04-02 06:38:15,587 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 540 transitions. Word has length 87 [2023-04-02 06:38:15,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:38:15,587 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 540 transitions. [2023-04-02 06:38:15,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 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 06:38:15,587 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 540 transitions. [2023-04-02 06:38:15,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-04-02 06:38:15,588 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:38:15,588 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:38:15,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-04-02 06:38:15,588 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr3ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:38:15,588 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:38:15,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1561558333, now seen corresponding path program 1 times [2023-04-02 06:38:15,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:38:15,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596442582] [2023-04-02 06:38:15,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:38:15,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:38:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:17,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:38:17,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:17,117 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 06:38:17,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:38:17,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596442582] [2023-04-02 06:38:17,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596442582] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:38:17,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:38:17,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 06:38:17,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818057479] [2023-04-02 06:38:17,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:38:17,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:38:17,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:38:17,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:38:17,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:38:17,118 INFO L87 Difference]: Start difference. First operand 446 states and 540 transitions. Second operand has 13 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 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 06:38:23,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:38:23,767 INFO L93 Difference]: Finished difference Result 1115 states and 1455 transitions. [2023-04-02 06:38:23,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 06:38:23,767 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 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 87 [2023-04-02 06:38:23,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:38:23,770 INFO L225 Difference]: With dead ends: 1115 [2023-04-02 06:38:23,770 INFO L226 Difference]: Without dead ends: 1109 [2023-04-02 06:38:23,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=325, Invalid=935, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 06:38:23,771 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 4367 mSDsluCounter, 1629 mSDsCounter, 0 mSdLazyCounter, 2302 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4367 SdHoareTripleChecker+Valid, 2116 SdHoareTripleChecker+Invalid, 2466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 2302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-04-02 06:38:23,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4367 Valid, 2116 Invalid, 2466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 2302 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-04-02 06:38:23,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2023-04-02 06:38:23,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 451. [2023-04-02 06:38:23,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 432 states have (on average 1.2546296296296295) internal successors, (542), 447 states have internal predecessors, (542), 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 06:38:23,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 545 transitions. [2023-04-02 06:38:23,928 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 545 transitions. Word has length 87 [2023-04-02 06:38:23,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:38:23,929 INFO L495 AbstractCegarLoop]: Abstraction has 451 states and 545 transitions. [2023-04-02 06:38:23,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 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 06:38:23,929 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 545 transitions. [2023-04-02 06:38:23,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-04-02 06:38:23,930 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:38:23,930 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:38:23,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-04-02 06:38:23,930 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:38:23,930 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:38:23,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1202946342, now seen corresponding path program 1 times [2023-04-02 06:38:23,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:38:23,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681937141] [2023-04-02 06:38:23,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:38:23,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:38:23,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:25,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:38:25,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:25,259 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 06:38:25,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:38:25,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681937141] [2023-04-02 06:38:25,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681937141] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:38:25,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:38:25,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:38:25,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612030301] [2023-04-02 06:38:25,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:38:25,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:38:25,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:38:25,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:38:25,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:38:25,261 INFO L87 Difference]: Start difference. First operand 451 states and 545 transitions. Second operand has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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 06:38:29,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:38:29,573 INFO L93 Difference]: Finished difference Result 835 states and 1062 transitions. [2023-04-02 06:38:29,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:38:29,573 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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 87 [2023-04-02 06:38:29,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:38:29,575 INFO L225 Difference]: With dead ends: 835 [2023-04-02 06:38:29,576 INFO L226 Difference]: Without dead ends: 767 [2023-04-02 06:38:29,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:38:29,577 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 1663 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 2115 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1663 SdHoareTripleChecker+Valid, 1915 SdHoareTripleChecker+Invalid, 2130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-04-02 06:38:29,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1663 Valid, 1915 Invalid, 2130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2115 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-04-02 06:38:29,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2023-04-02 06:38:29,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 446. [2023-04-02 06:38:29,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 427 states have (on average 1.2552693208430914) internal successors, (536), 442 states have internal predecessors, (536), 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 06:38:29,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 539 transitions. [2023-04-02 06:38:29,724 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 539 transitions. Word has length 87 [2023-04-02 06:38:29,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:38:29,724 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 539 transitions. [2023-04-02 06:38:29,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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 06:38:29,725 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 539 transitions. [2023-04-02 06:38:29,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-04-02 06:38:29,725 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:38:29,726 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:38:29,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-04-02 06:38:29,726 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2023-04-02 06:38:29,726 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:38:29,726 INFO L85 PathProgramCache]: Analyzing trace with hash 614853545, now seen corresponding path program 1 times [2023-04-02 06:38:29,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:38:29,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750488469] [2023-04-02 06:38:29,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:38:29,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:38:29,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:32,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:38:32,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:32,719 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 06:38:32,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:38:32,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750488469] [2023-04-02 06:38:32,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750488469] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:38:32,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:38:32,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2023-04-02 06:38:32,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426847066] [2023-04-02 06:38:32,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:38:32,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-04-02 06:38:32,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:38:32,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-04-02 06:38:32,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=841, Unknown=0, NotChecked=0, Total=930 [2023-04-02 06:38:32,721 INFO L87 Difference]: Start difference. First operand 446 states and 539 transitions. Second operand has 31 states, 31 states have (on average 2.7419354838709675) internal successors, (85), 30 states have internal predecessors, (85), 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)