/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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 06:37:41,838 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 06:37:41,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 06:37:41,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-04-02 06:37:41,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 06:37:41,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 06:37:41,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 06:37:41,909 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 06:37:41,936 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 06:37:41,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 06:37:41,936 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 06:37:41,937 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 06:37:41,937 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 06:37:41,937 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 06:37:41,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 06:37:41,938 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 06:37:41,938 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 06:37:41,938 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 06:37:41,938 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 06:37:41,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 06:37:41,938 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 06:37:41,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 06:37:41,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 06:37:41,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 06:37:41,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 06:37:41,938 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 06:37:41,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 06:37:41,939 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 06:37:41,939 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 06:37:41,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 06:37:41,939 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 06:37:41,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 06:37:41,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 06:37:41,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 06:37:41,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 06:37:41,939 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 06:37:41,939 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 06:37:41,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 06:37:41,940 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 06:37:41,940 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 06:37:41,940 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 06:37:41,940 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 06:37:41,940 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 06:37:41,940 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 06:37:42,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 06:37:42,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 06:37:42,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 06:37:42,145 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 06:37:42,145 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 06:37:42,145 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2023-04-02 06:37:43,127 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 06:37:43,431 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 06:37:43,432 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2023-04-02 06:37:43,450 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62a869ffd/912a4db93c5b4347bbd61c58e93c58fc/FLAGa426a06ba [2023-04-02 06:37:43,466 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62a869ffd/912a4db93c5b4347bbd61c58e93c58fc [2023-04-02 06:37:43,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 06:37:43,469 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 06:37:43,472 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 06:37:43,472 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 06:37:43,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 06:37:43,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 06:37:43" (1/1) ... [2023-04-02 06:37:43,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41a6854f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:37:43, skipping insertion in model container [2023-04-02 06:37:43,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 06:37:43" (1/1) ... [2023-04-02 06:37:43,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 06:37:43,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 06:37:43,846 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[14183,14196] [2023-04-02 06:37:43,873 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[18907,18920] [2023-04-02 06:37:43,884 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20199,20212] [2023-04-02 06:37:43,887 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20957,20970] [2023-04-02 06:37:43,893 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[22620,22633] [2023-04-02 06:37:43,897 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[23378,23391] [2023-04-02 06:37:43,902 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[24507,24520] [2023-04-02 06:37:43,910 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27132,27145] [2023-04-02 06:37:43,914 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27893,27906] [2023-04-02 06:37:43,934 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[29025,29038] [2023-04-02 06:37:43,941 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[31116,31129] [2023-04-02 06:37:43,962 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35211,35224] [2023-04-02 06:37:43,966 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35972,35985] [2023-04-02 06:37:43,970 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[37065,37078] [2023-04-02 06:37:43,977 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[39117,39130] [2023-04-02 06:37:43,987 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[42849,42862] [2023-04-02 06:37:44,011 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50027,50040] [2023-04-02 06:37:44,014 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50788,50801] [2023-04-02 06:37:44,021 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[51920,51933] [2023-04-02 06:37:44,028 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[54011,54024] [2023-04-02 06:37:44,043 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[57572,57585] [2023-04-02 06:37:44,067 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[63570,63583] [2023-04-02 06:37:44,273 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 06:37:44,283 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 06:37:44,340 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[14183,14196] [2023-04-02 06:37:44,362 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[18907,18920] [2023-04-02 06:37:44,375 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20199,20212] [2023-04-02 06:37:44,382 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20957,20970] [2023-04-02 06:37:44,386 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[22620,22633] [2023-04-02 06:37:44,388 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[23378,23391] [2023-04-02 06:37:44,392 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[24507,24520] [2023-04-02 06:37:44,397 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27132,27145] [2023-04-02 06:37:44,399 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27893,27906] [2023-04-02 06:37:44,402 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[29025,29038] [2023-04-02 06:37:44,408 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[31116,31129] [2023-04-02 06:37:44,416 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35211,35224] [2023-04-02 06:37:44,418 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35972,35985] [2023-04-02 06:37:44,421 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[37065,37078] [2023-04-02 06:37:44,425 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[39117,39130] [2023-04-02 06:37:44,434 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[42849,42862] [2023-04-02 06:37:44,454 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50027,50040] [2023-04-02 06:37:44,456 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50788,50801] [2023-04-02 06:37:44,461 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[51920,51933] [2023-04-02 06:37:44,466 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[54011,54024] [2023-04-02 06:37:44,475 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[57572,57585] [2023-04-02 06:37:44,495 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[63570,63583] [2023-04-02 06:37:44,697 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 06:37:44,712 INFO L208 MainTranslator]: Completed translation [2023-04-02 06:37:44,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:37:44 WrapperNode [2023-04-02 06:37:44,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 06:37:44,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 06:37:44,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 06:37:44,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 06:37:44,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:37:44" (1/1) ... [2023-04-02 06:37:44,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:37:44" (1/1) ... [2023-04-02 06:37:44,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:37:44" (1/1) ... [2023-04-02 06:37:44,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:37:44" (1/1) ... [2023-04-02 06:37:44,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:37:44" (1/1) ... [2023-04-02 06:37:44,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:37:44" (1/1) ... [2023-04-02 06:37:44,845 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:37:44" (1/1) ... [2023-04-02 06:37:44,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:37:44" (1/1) ... [2023-04-02 06:37:44,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 06:37:44,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 06:37:44,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 06:37:44,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 06:37:44,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:37:44" (1/1) ... [2023-04-02 06:37:44,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 06:37:44,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 06:37:44,908 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 06:37:44,914 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 06:37:44,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 06:37:44,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 06:37:44,937 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 06:37:44,937 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 06:37:44,937 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 06:37:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 06:37:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 06:37:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 06:37:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 06:37:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 06:37:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 06:37:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 06:37:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 06:37:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 06:37:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 06:37:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 06:37:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 06:37:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 06:37:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-04-02 06:37:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-04-02 06:37:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2023-04-02 06:37:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 06:37:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 06:37:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 06:37:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 06:37:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 06:37:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 06:37:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 06:37:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 06:37:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 06:37:45,233 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 06:37:45,234 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 06:37:47,235 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 06:37:47,244 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 06:37:47,244 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-02 06:37:47,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 06:37:47 BoogieIcfgContainer [2023-04-02 06:37:47,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 06:37:47,248 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 06:37:47,248 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 06:37:47,250 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 06:37:47,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 06:37:43" (1/3) ... [2023-04-02 06:37:47,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6baf44d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 06:37:47, skipping insertion in model container [2023-04-02 06:37:47,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:37:44" (2/3) ... [2023-04-02 06:37:47,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6baf44d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 06:37:47, skipping insertion in model container [2023-04-02 06:37:47,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 06:37:47" (3/3) ... [2023-04-02 06:37:47,251 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2023-04-02 06:37:47,261 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 06:37:47,262 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-04-02 06:37:47,315 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 06:37:47,320 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;@18f7460e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 06:37:47,320 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-04-02 06:37:47,327 INFO L276 IsEmpty]: Start isEmpty. Operand has 1137 states, 1109 states have (on average 1.854824165915239) internal successors, (2057), 1132 states have internal predecessors, (2057), 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 06:37:47,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-04-02 06:37:47,349 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:37:47,350 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, 1, 1] [2023-04-02 06:37:47,350 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:37:47,354 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:37:47,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1890921663, now seen corresponding path program 1 times [2023-04-02 06:37:47,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:37:47,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611749561] [2023-04-02 06:37:47,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:37:47,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:37:47,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:37:48,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:37:48,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:37:48,958 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 06:37:48,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:37:48,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611749561] [2023-04-02 06:37:48,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611749561] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:37:48,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:37:48,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:37:48,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590404070] [2023-04-02 06:37:48,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:37:48,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:37:48,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:37:48,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:37:48,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:37:48,985 INFO L87 Difference]: Start difference. First operand has 1137 states, 1109 states have (on average 1.854824165915239) internal successors, (2057), 1132 states have internal predecessors, (2057), 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 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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 06:37:54,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:37:54,998 INFO L93 Difference]: Finished difference Result 1725 states and 3020 transitions. [2023-04-02 06:37:54,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:37:55,000 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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 90 [2023-04-02 06:37:55,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:37:55,022 INFO L225 Difference]: With dead ends: 1725 [2023-04-02 06:37:55,022 INFO L226 Difference]: Without dead ends: 971 [2023-04-02 06:37:55,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:37:55,037 INFO L413 NwaCegarLoop]: 996 mSDtfsCounter, 4864 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 2389 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4864 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 2463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-04-02 06:37:55,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4864 Valid, 1097 Invalid, 2463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2389 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-04-02 06:37:55,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2023-04-02 06:37:55,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 971. [2023-04-02 06:37:55,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 971 states, 946 states have (on average 1.284355179704017) internal successors, (1215), 967 states have internal predecessors, (1215), 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 06:37:55,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1218 transitions. [2023-04-02 06:37:55,131 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1218 transitions. Word has length 90 [2023-04-02 06:37:55,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:37:55,132 INFO L495 AbstractCegarLoop]: Abstraction has 971 states and 1218 transitions. [2023-04-02 06:37:55,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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 06:37:55,132 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1218 transitions. [2023-04-02 06:37:55,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-04-02 06:37:55,136 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:37:55,136 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, 1, 1, 1] [2023-04-02 06:37:55,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 06:37:55,136 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:37:55,137 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:37:55,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1448021312, now seen corresponding path program 1 times [2023-04-02 06:37:55,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:37:55,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693886906] [2023-04-02 06:37:55,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:37:55,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:37:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:37:56,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:37:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:37:56,261 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 06:37:56,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:37:56,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693886906] [2023-04-02 06:37:56,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693886906] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:37:56,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:37:56,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:37:56,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592734609] [2023-04-02 06:37:56,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:37:56,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:37:56,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:37:56,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:37:56,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:37:56,264 INFO L87 Difference]: Start difference. First operand 971 states and 1218 transitions. Second operand has 6 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 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 06:37:59,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:37:59,989 INFO L93 Difference]: Finished difference Result 1545 states and 2008 transitions. [2023-04-02 06:37:59,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:37:59,989 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 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 91 [2023-04-02 06:37:59,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:37:59,992 INFO L225 Difference]: With dead ends: 1545 [2023-04-02 06:37:59,992 INFO L226 Difference]: Without dead ends: 801 [2023-04-02 06:37:59,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:37:59,994 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 3017 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3017 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 1490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-04-02 06:37:59,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3017 Valid, 599 Invalid, 1490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-04-02 06:37:59,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2023-04-02 06:38:00,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 801. [2023-04-02 06:38:00,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 776 states have (on average 1.324742268041237) internal successors, (1028), 797 states have internal predecessors, (1028), 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 06:38:00,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1031 transitions. [2023-04-02 06:38:00,020 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1031 transitions. Word has length 91 [2023-04-02 06:38:00,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:38:00,020 INFO L495 AbstractCegarLoop]: Abstraction has 801 states and 1031 transitions. [2023-04-02 06:38:00,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 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 06:38:00,020 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1031 transitions. [2023-04-02 06:38:00,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-04-02 06:38:00,022 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:38:00,022 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, 1, 1, 1, 1] [2023-04-02 06:38:00,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 06:38:00,022 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:38:00,022 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:38:00,022 INFO L85 PathProgramCache]: Analyzing trace with hash -552886457, now seen corresponding path program 1 times [2023-04-02 06:38:00,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:38:00,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323627845] [2023-04-02 06:38:00,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:38:00,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:38:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:00,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:38:01,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:01,034 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 06:38:01,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:38:01,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323627845] [2023-04-02 06:38:01,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323627845] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:38:01,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:38:01,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:38:01,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048822501] [2023-04-02 06:38:01,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:38:01,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:38:01,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:38:01,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:38:01,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:38:01,036 INFO L87 Difference]: Start difference. First operand 801 states and 1031 transitions. Second operand has 6 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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 06:38:04,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:38:04,370 INFO L93 Difference]: Finished difference Result 1375 states and 1820 transitions. [2023-04-02 06:38:04,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:38:04,371 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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 92 [2023-04-02 06:38:04,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:38:04,373 INFO L225 Difference]: With dead ends: 1375 [2023-04-02 06:38:04,374 INFO L226 Difference]: Without dead ends: 719 [2023-04-02 06:38:04,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:38:04,375 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 2731 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2731 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-04-02 06:38:04,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2731 Valid, 547 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1356 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-04-02 06:38:04,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2023-04-02 06:38:04,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 719. [2023-04-02 06:38:04,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 694 states have (on average 1.3501440922190202) internal successors, (937), 715 states have internal predecessors, (937), 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 06:38:04,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 940 transitions. [2023-04-02 06:38:04,408 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 940 transitions. Word has length 92 [2023-04-02 06:38:04,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:38:04,409 INFO L495 AbstractCegarLoop]: Abstraction has 719 states and 940 transitions. [2023-04-02 06:38:04,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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 06:38:04,409 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 940 transitions. [2023-04-02 06:38:04,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-04-02 06:38:04,414 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:38:04,414 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, 1, 1, 1, 1, 1] [2023-04-02 06:38:04,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 06:38:04,415 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:38:04,415 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:38:04,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1962446874, now seen corresponding path program 1 times [2023-04-02 06:38:04,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:38:04,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856747596] [2023-04-02 06:38:04,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:38:04,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:38:04,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:05,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:38:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:05,422 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 06:38:05,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:38:05,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856747596] [2023-04-02 06:38:05,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856747596] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:38:05,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:38:05,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:38:05,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114706091] [2023-04-02 06:38:05,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:38:05,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:38:05,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:38:05,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:38:05,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:38:05,427 INFO L87 Difference]: Start difference. First operand 719 states and 940 transitions. Second operand has 6 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 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 06:38:08,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:38:08,826 INFO L93 Difference]: Finished difference Result 1293 states and 1728 transitions. [2023-04-02 06:38:08,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:38:08,827 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 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 93 [2023-04-02 06:38:08,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:38:08,829 INFO L225 Difference]: With dead ends: 1293 [2023-04-02 06:38:08,829 INFO L226 Difference]: Without dead ends: 681 [2023-04-02 06:38:08,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:38:08,831 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 2587 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2587 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:38:08,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2587 Valid, 517 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-04-02 06:38:08,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2023-04-02 06:38:08,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 681. [2023-04-02 06:38:08,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 656 states have (on average 1.3628048780487805) internal successors, (894), 677 states have internal predecessors, (894), 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 06:38:08,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 897 transitions. [2023-04-02 06:38:08,858 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 897 transitions. Word has length 93 [2023-04-02 06:38:08,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:38:08,859 INFO L495 AbstractCegarLoop]: Abstraction has 681 states and 897 transitions. [2023-04-02 06:38:08,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 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 06:38:08,859 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 897 transitions. [2023-04-02 06:38:08,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-04-02 06:38:08,860 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:38:08,860 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, 1, 1, 1, 1, 1, 1] [2023-04-02 06:38:08,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 06:38:08,860 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:38:08,861 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:38:08,861 INFO L85 PathProgramCache]: Analyzing trace with hash -665162271, now seen corresponding path program 1 times [2023-04-02 06:38:08,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:38:08,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995053671] [2023-04-02 06:38:08,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:38:08,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:38:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:10,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:38:10,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:10,071 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 06:38:10,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:38:10,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995053671] [2023-04-02 06:38:10,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995053671] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:38:10,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:38:10,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:38:10,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718613398] [2023-04-02 06:38:10,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:38:10,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:38:10,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:38:10,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:38:10,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:38:10,073 INFO L87 Difference]: Start difference. First operand 681 states and 897 transitions. Second operand has 6 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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 06:38:13,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:38:13,395 INFO L93 Difference]: Finished difference Result 1255 states and 1684 transitions. [2023-04-02 06:38:13,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:38:13,396 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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 94 [2023-04-02 06:38:13,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:38:13,398 INFO L225 Difference]: With dead ends: 1255 [2023-04-02 06:38:13,398 INFO L226 Difference]: Without dead ends: 665 [2023-04-02 06:38:13,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:38:13,400 INFO L413 NwaCegarLoop]: 449 mSDtfsCounter, 2511 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1306 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2511 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:38:13,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2511 Valid, 489 Invalid, 1332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1306 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-04-02 06:38:13,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2023-04-02 06:38:13,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 665. [2023-04-02 06:38:13,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 640 states have (on average 1.3671875) internal successors, (875), 661 states have internal predecessors, (875), 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 06:38:13,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 878 transitions. [2023-04-02 06:38:13,430 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 878 transitions. Word has length 94 [2023-04-02 06:38:13,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:38:13,431 INFO L495 AbstractCegarLoop]: Abstraction has 665 states and 878 transitions. [2023-04-02 06:38:13,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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 06:38:13,431 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 878 transitions. [2023-04-02 06:38:13,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-04-02 06:38:13,432 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:38:13,433 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, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:38:13,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 06:38:13,433 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:38:13,434 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:38:13,434 INFO L85 PathProgramCache]: Analyzing trace with hash 971843450, now seen corresponding path program 1 times [2023-04-02 06:38:13,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:38:13,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488318155] [2023-04-02 06:38:13,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:38:13,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:38:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:14,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:38:14,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:14,420 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 06:38:14,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:38:14,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488318155] [2023-04-02 06:38:14,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488318155] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:38:14,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:38:14,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:38:14,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863401243] [2023-04-02 06:38:14,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:38:14,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:38:14,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:38:14,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:38:14,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:38:14,422 INFO L87 Difference]: Start difference. First operand 665 states and 878 transitions. Second operand has 6 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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 06:38:17,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:38:17,699 INFO L93 Difference]: Finished difference Result 1586 states and 2129 transitions. [2023-04-02 06:38:17,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:38:17,699 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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 95 [2023-04-02 06:38:17,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:38:17,702 INFO L225 Difference]: With dead ends: 1586 [2023-04-02 06:38:17,702 INFO L226 Difference]: Without dead ends: 992 [2023-04-02 06:38:17,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:38:17,704 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 3431 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3431 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 1441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:38:17,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3431 Valid, 756 Invalid, 1441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-04-02 06:38:17,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2023-04-02 06:38:17,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 912. [2023-04-02 06:38:17,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 887 states have (on average 1.4103720405862459) internal successors, (1251), 908 states have internal predecessors, (1251), 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 06:38:17,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1254 transitions. [2023-04-02 06:38:17,748 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1254 transitions. Word has length 95 [2023-04-02 06:38:17,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:38:17,749 INFO L495 AbstractCegarLoop]: Abstraction has 912 states and 1254 transitions. [2023-04-02 06:38:17,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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 06:38:17,749 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1254 transitions. [2023-04-02 06:38:17,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-02 06:38:17,750 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:38:17,750 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:38:17,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 06:38:17,750 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:38:17,751 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:38:17,751 INFO L85 PathProgramCache]: Analyzing trace with hash -74601095, now seen corresponding path program 1 times [2023-04-02 06:38:17,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:38:17,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144952313] [2023-04-02 06:38:17,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:38:17,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:38:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:18,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:38:18,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:18,986 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 06:38:18,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:38:18,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144952313] [2023-04-02 06:38:18,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144952313] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:38:18,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:38:18,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 06:38:18,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124179772] [2023-04-02 06:38:18,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:38:18,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 06:38:18,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:38:18,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 06:38:18,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:38:18,987 INFO L87 Difference]: Start difference. First operand 912 states and 1254 transitions. Second operand has 9 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 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 06:38:22,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:38:22,719 INFO L93 Difference]: Finished difference Result 1657 states and 2213 transitions. [2023-04-02 06:38:22,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 06:38:22,720 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 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 96 [2023-04-02 06:38:22,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:38:22,724 INFO L225 Difference]: With dead ends: 1657 [2023-04-02 06:38:22,724 INFO L226 Difference]: Without dead ends: 1239 [2023-04-02 06:38:22,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2023-04-02 06:38:22,726 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 4944 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 1969 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4944 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 1982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-04-02 06:38:22,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4944 Valid, 1048 Invalid, 1982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1969 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-04-02 06:38:22,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2023-04-02 06:38:22,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 912. [2023-04-02 06:38:22,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 887 states have (on average 1.4092446448703495) internal successors, (1250), 908 states have internal predecessors, (1250), 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 06:38:22,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1253 transitions. [2023-04-02 06:38:22,784 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1253 transitions. Word has length 96 [2023-04-02 06:38:22,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:38:22,784 INFO L495 AbstractCegarLoop]: Abstraction has 912 states and 1253 transitions. [2023-04-02 06:38:22,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 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 06:38:22,784 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1253 transitions. [2023-04-02 06:38:22,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-02 06:38:22,785 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:38:22,785 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:38:22,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 06:38:22,786 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr20ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:38:22,786 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:38:22,786 INFO L85 PathProgramCache]: Analyzing trace with hash -381739919, now seen corresponding path program 1 times [2023-04-02 06:38:22,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:38:22,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176919856] [2023-04-02 06:38:22,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:38:22,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:38:22,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:24,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:38:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:24,061 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 06:38:24,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:38:24,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176919856] [2023-04-02 06:38:24,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176919856] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:38:24,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:38:24,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 06:38:24,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600952167] [2023-04-02 06:38:24,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:38:24,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:38:24,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:38:24,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:38:24,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:38:24,062 INFO L87 Difference]: Start difference. First operand 912 states and 1253 transitions. Second operand has 13 states, 12 states have (on average 7.75) internal successors, (93), 11 states have internal predecessors, (93), 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 06:38:28,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:38:28,253 INFO L93 Difference]: Finished difference Result 1927 states and 2679 transitions. [2023-04-02 06:38:28,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-04-02 06:38:28,257 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.75) internal successors, (93), 11 states have internal predecessors, (93), 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 96 [2023-04-02 06:38:28,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:38:28,263 INFO L225 Difference]: With dead ends: 1927 [2023-04-02 06:38:28,264 INFO L226 Difference]: Without dead ends: 1756 [2023-04-02 06:38:28,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=207, Invalid=605, Unknown=0, NotChecked=0, Total=812 [2023-04-02 06:38:28,266 INFO L413 NwaCegarLoop]: 528 mSDtfsCounter, 3985 mSDsluCounter, 2567 mSDsCounter, 0 mSdLazyCounter, 3555 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3985 SdHoareTripleChecker+Valid, 3095 SdHoareTripleChecker+Invalid, 3579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 3555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-04-02 06:38:28,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3985 Valid, 3095 Invalid, 3579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 3555 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-04-02 06:38:28,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1756 states. [2023-04-02 06:38:28,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1756 to 919. [2023-04-02 06:38:28,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 894 states have (on average 1.4093959731543624) internal successors, (1260), 915 states have internal predecessors, (1260), 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 06:38:28,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1263 transitions. [2023-04-02 06:38:28,341 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1263 transitions. Word has length 96 [2023-04-02 06:38:28,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:38:28,341 INFO L495 AbstractCegarLoop]: Abstraction has 919 states and 1263 transitions. [2023-04-02 06:38:28,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.75) internal successors, (93), 11 states have internal predecessors, (93), 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 06:38:28,341 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1263 transitions. [2023-04-02 06:38:28,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-02 06:38:28,342 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:38:28,343 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:38:28,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 06:38:28,343 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr19ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:38:28,343 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:38:28,343 INFO L85 PathProgramCache]: Analyzing trace with hash -892120232, now seen corresponding path program 1 times [2023-04-02 06:38:28,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:38:28,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636346226] [2023-04-02 06:38:28,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:38:28,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:38:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:29,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:38:29,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:29,607 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 06:38:29,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:38:29,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636346226] [2023-04-02 06:38:29,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636346226] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:38:29,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:38:29,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:38:29,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037851725] [2023-04-02 06:38:29,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:38:29,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:38:29,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:38:29,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:38:29,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:38:29,609 INFO L87 Difference]: Start difference. First operand 919 states and 1263 transitions. Second operand has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 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 06:38:33,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:38:33,725 INFO L93 Difference]: Finished difference Result 1404 states and 1957 transitions. [2023-04-02 06:38:33,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:38:33,725 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 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 96 [2023-04-02 06:38:33,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:38:33,728 INFO L225 Difference]: With dead ends: 1404 [2023-04-02 06:38:33,728 INFO L226 Difference]: Without dead ends: 1139 [2023-04-02 06:38:33,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:38:33,731 INFO L413 NwaCegarLoop]: 527 mSDtfsCounter, 3649 mSDsluCounter, 1610 mSDsCounter, 0 mSdLazyCounter, 2675 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3649 SdHoareTripleChecker+Valid, 2137 SdHoareTripleChecker+Invalid, 2692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-04-02 06:38:33,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3649 Valid, 2137 Invalid, 2692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2675 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-04-02 06:38:33,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2023-04-02 06:38:33,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 912. [2023-04-02 06:38:33,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 887 states have (on average 1.4081172491544531) internal successors, (1249), 908 states have internal predecessors, (1249), 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 06:38:33,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1252 transitions. [2023-04-02 06:38:33,807 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1252 transitions. Word has length 96 [2023-04-02 06:38:33,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:38:33,807 INFO L495 AbstractCegarLoop]: Abstraction has 912 states and 1252 transitions. [2023-04-02 06:38:33,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 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 06:38:33,808 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1252 transitions. [2023-04-02 06:38:33,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-02 06:38:33,809 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:38:33,809 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:38:33,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 06:38:33,809 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr21ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:38:33,810 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:38:33,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1284775265, now seen corresponding path program 1 times [2023-04-02 06:38:33,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:38:33,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402260877] [2023-04-02 06:38:33,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:38:33,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:38:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:34,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:38:34,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:34,924 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 06:38:34,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:38:34,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402260877] [2023-04-02 06:38:34,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402260877] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:38:34,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:38:34,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:38:34,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216807016] [2023-04-02 06:38:34,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:38:34,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:38:34,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:38:34,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:38:34,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:38:34,926 INFO L87 Difference]: Start difference. First operand 912 states and 1252 transitions. Second operand has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 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 06:38:39,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:38:39,028 INFO L93 Difference]: Finished difference Result 1877 states and 2614 transitions. [2023-04-02 06:38:39,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:38:39,031 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 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 96 [2023-04-02 06:38:39,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:38:39,035 INFO L225 Difference]: With dead ends: 1877 [2023-04-02 06:38:39,035 INFO L226 Difference]: Without dead ends: 1706 [2023-04-02 06:38:39,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:38:39,036 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 4324 mSDsluCounter, 1726 mSDsCounter, 0 mSdLazyCounter, 2792 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4324 SdHoareTripleChecker+Valid, 2261 SdHoareTripleChecker+Invalid, 2810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-04-02 06:38:39,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4324 Valid, 2261 Invalid, 2810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2792 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-04-02 06:38:39,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2023-04-02 06:38:39,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 912. [2023-04-02 06:38:39,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 887 states have (on average 1.406989853438557) internal successors, (1248), 908 states have internal predecessors, (1248), 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 06:38:39,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1251 transitions. [2023-04-02 06:38:39,214 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1251 transitions. Word has length 96 [2023-04-02 06:38:39,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:38:39,214 INFO L495 AbstractCegarLoop]: Abstraction has 912 states and 1251 transitions. [2023-04-02 06:38:39,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 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 06:38:39,215 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1251 transitions. [2023-04-02 06:38:39,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:38:39,216 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:38:39,216 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:38:39,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 06:38:39,216 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:38:39,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:38:39,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1400863290, now seen corresponding path program 1 times [2023-04-02 06:38:39,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:38:39,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794210941] [2023-04-02 06:38:39,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:38:39,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:38:39,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:40,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:38:40,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:40,406 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 06:38:40,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:38:40,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794210941] [2023-04-02 06:38:40,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794210941] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:38:40,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:38:40,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:38:40,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902643827] [2023-04-02 06:38:40,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:38:40,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:38:40,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:38:40,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:38:40,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:38:40,408 INFO L87 Difference]: Start difference. First operand 912 states and 1251 transitions. Second operand has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 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 06:38:44,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:38:44,723 INFO L93 Difference]: Finished difference Result 1978 states and 2760 transitions. [2023-04-02 06:38:44,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:38:44,723 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 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 98 [2023-04-02 06:38:44,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:38:44,727 INFO L225 Difference]: With dead ends: 1978 [2023-04-02 06:38:44,728 INFO L226 Difference]: Without dead ends: 1734 [2023-04-02 06:38:44,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:38:44,729 INFO L413 NwaCegarLoop]: 631 mSDtfsCounter, 4696 mSDsluCounter, 1999 mSDsCounter, 0 mSdLazyCounter, 3192 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4696 SdHoareTripleChecker+Valid, 2630 SdHoareTripleChecker+Invalid, 3210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:38:44,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4696 Valid, 2630 Invalid, 3210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3192 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-04-02 06:38:44,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2023-04-02 06:38:44,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 912. [2023-04-02 06:38:44,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 887 states have (on average 1.4047350620067645) internal successors, (1246), 908 states have internal predecessors, (1246), 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 06:38:44,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1249 transitions. [2023-04-02 06:38:44,814 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1249 transitions. Word has length 98 [2023-04-02 06:38:44,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:38:44,814 INFO L495 AbstractCegarLoop]: Abstraction has 912 states and 1249 transitions. [2023-04-02 06:38:44,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 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 06:38:44,815 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1249 transitions. [2023-04-02 06:38:44,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:38:44,816 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:38:44,816 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:38:44,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 06:38:44,816 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr15ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:38:44,817 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:38:44,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1497399620, now seen corresponding path program 1 times [2023-04-02 06:38:44,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:38:44,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122101154] [2023-04-02 06:38:44,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:38:44,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:38:44,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:45,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:38:45,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:45,927 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 06:38:45,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:38:45,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122101154] [2023-04-02 06:38:45,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122101154] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:38:45,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:38:45,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:38:45,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245826124] [2023-04-02 06:38:45,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:38:45,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:38:45,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:38:45,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:38:45,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:38:45,928 INFO L87 Difference]: Start difference. First operand 912 states and 1249 transitions. Second operand has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 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 06:38:49,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:38:49,871 INFO L93 Difference]: Finished difference Result 1896 states and 2638 transitions. [2023-04-02 06:38:49,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:38:49,871 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 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 98 [2023-04-02 06:38:49,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:38:49,878 INFO L225 Difference]: With dead ends: 1896 [2023-04-02 06:38:49,878 INFO L226 Difference]: Without dead ends: 1706 [2023-04-02 06:38:49,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:38:49,879 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 3559 mSDsluCounter, 1876 mSDsCounter, 0 mSdLazyCounter, 3004 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3559 SdHoareTripleChecker+Valid, 2456 SdHoareTripleChecker+Invalid, 3019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-04-02 06:38:49,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3559 Valid, 2456 Invalid, 3019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3004 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-04-02 06:38:49,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2023-04-02 06:38:49,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 912. [2023-04-02 06:38:49,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 887 states have (on average 1.4024802705749717) internal successors, (1244), 908 states have internal predecessors, (1244), 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 06:38:49,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1247 transitions. [2023-04-02 06:38:49,972 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1247 transitions. Word has length 98 [2023-04-02 06:38:49,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:38:49,973 INFO L495 AbstractCegarLoop]: Abstraction has 912 states and 1247 transitions. [2023-04-02 06:38:49,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 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 06:38:49,973 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1247 transitions. [2023-04-02 06:38:49,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:38:49,974 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:38:49,974 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:38:49,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 06:38:49,975 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr10ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:38:49,975 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:38:49,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1102220372, now seen corresponding path program 1 times [2023-04-02 06:38:49,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:38:49,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507476739] [2023-04-02 06:38:49,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:38:49,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:38:50,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:50,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:38:51,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:51,054 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 06:38:51,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:38:51,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507476739] [2023-04-02 06:38:51,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507476739] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:38:51,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:38:51,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 06:38:51,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328688659] [2023-04-02 06:38:51,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:38:51,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 06:38:51,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:38:51,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 06:38:51,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-04-02 06:38:51,056 INFO L87 Difference]: Start difference. First operand 912 states and 1247 transitions. Second operand has 12 states, 11 states have (on average 8.636363636363637) internal successors, (95), 10 states have internal predecessors, (95), 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 06:38:55,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:38:55,679 INFO L93 Difference]: Finished difference Result 1779 states and 2485 transitions. [2023-04-02 06:38:55,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 06:38:55,679 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.636363636363637) internal successors, (95), 10 states have internal predecessors, (95), 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 98 [2023-04-02 06:38:55,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:38:55,683 INFO L225 Difference]: With dead ends: 1779 [2023-04-02 06:38:55,683 INFO L226 Difference]: Without dead ends: 1379 [2023-04-02 06:38:55,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=201, Invalid=555, Unknown=0, NotChecked=0, Total=756 [2023-04-02 06:38:55,685 INFO L413 NwaCegarLoop]: 606 mSDtfsCounter, 4309 mSDsluCounter, 2300 mSDsCounter, 0 mSdLazyCounter, 3409 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4309 SdHoareTripleChecker+Valid, 2906 SdHoareTripleChecker+Invalid, 3443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 3409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-04-02 06:38:55,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4309 Valid, 2906 Invalid, 3443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 3409 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-04-02 06:38:55,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1379 states. [2023-04-02 06:38:55,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1379 to 912. [2023-04-02 06:38:55,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 887 states have (on average 1.4002254791431792) internal successors, (1242), 908 states have internal predecessors, (1242), 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 06:38:55,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1245 transitions. [2023-04-02 06:38:55,791 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1245 transitions. Word has length 98 [2023-04-02 06:38:55,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:38:55,791 INFO L495 AbstractCegarLoop]: Abstraction has 912 states and 1245 transitions. [2023-04-02 06:38:55,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.636363636363637) internal successors, (95), 10 states have internal predecessors, (95), 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 06:38:55,791 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1245 transitions. [2023-04-02 06:38:55,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:38:55,792 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:38:55,792 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:38:55,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 06:38:55,793 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr20ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:38:55,793 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:38:55,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1378259577, now seen corresponding path program 1 times [2023-04-02 06:38:55,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:38:55,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339056415] [2023-04-02 06:38:55,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:38:55,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:38:55,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:56,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:38:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:38:56,884 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 06:38:56,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:38:56,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339056415] [2023-04-02 06:38:56,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339056415] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:38:56,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:38:56,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:38:56,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241898291] [2023-04-02 06:38:56,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:38:56,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:38:56,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:38:56,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:38:56,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:38:56,886 INFO L87 Difference]: Start difference. First operand 912 states and 1245 transitions. Second operand has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 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 06:39:01,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:39:01,094 INFO L93 Difference]: Finished difference Result 1877 states and 2607 transitions. [2023-04-02 06:39:01,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:39:01,094 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 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 98 [2023-04-02 06:39:01,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:39:01,098 INFO L225 Difference]: With dead ends: 1877 [2023-04-02 06:39:01,099 INFO L226 Difference]: Without dead ends: 1706 [2023-04-02 06:39:01,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:39:01,100 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 3593 mSDsluCounter, 1874 mSDsCounter, 0 mSdLazyCounter, 2997 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3593 SdHoareTripleChecker+Valid, 2454 SdHoareTripleChecker+Invalid, 3015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-04-02 06:39:01,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3593 Valid, 2454 Invalid, 3015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2997 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-04-02 06:39:01,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2023-04-02 06:39:01,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 912. [2023-04-02 06:39:01,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 887 states have (on average 1.399098083427283) internal successors, (1241), 908 states have internal predecessors, (1241), 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 06:39:01,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1244 transitions. [2023-04-02 06:39:01,197 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1244 transitions. Word has length 98 [2023-04-02 06:39:01,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:39:01,197 INFO L495 AbstractCegarLoop]: Abstraction has 912 states and 1244 transitions. [2023-04-02 06:39:01,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 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 06:39:01,197 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1244 transitions. [2023-04-02 06:39:01,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:39:01,198 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:39:01,198 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:39:01,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 06:39:01,199 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr19ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:39:01,199 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:39:01,199 INFO L85 PathProgramCache]: Analyzing trace with hash 867879264, now seen corresponding path program 1 times [2023-04-02 06:39:01,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:39:01,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185975127] [2023-04-02 06:39:01,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:39:01,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:39:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:02,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:39:02,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:02,476 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 06:39:02,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:39:02,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185975127] [2023-04-02 06:39:02,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185975127] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:39:02,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:39:02,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 06:39:02,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609844589] [2023-04-02 06:39:02,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:39:02,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:39:02,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:39:02,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:39:02,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:39:02,478 INFO L87 Difference]: Start difference. First operand 912 states and 1244 transitions. Second operand has 13 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 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 06:39:10,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:39:10,005 INFO L93 Difference]: Finished difference Result 3224 states and 4563 transitions. [2023-04-02 06:39:10,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 06:39:10,024 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 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 98 [2023-04-02 06:39:10,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:39:10,032 INFO L225 Difference]: With dead ends: 3224 [2023-04-02 06:39:10,032 INFO L226 Difference]: Without dead ends: 3014 [2023-04-02 06:39:10,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=325, Invalid=935, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 06:39:10,035 INFO L413 NwaCegarLoop]: 920 mSDtfsCounter, 7757 mSDsluCounter, 3011 mSDsCounter, 0 mSdLazyCounter, 4820 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7757 SdHoareTripleChecker+Valid, 3931 SdHoareTripleChecker+Invalid, 5051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 4820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-04-02 06:39:10,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7757 Valid, 3931 Invalid, 5051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 4820 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-04-02 06:39:10,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3014 states. [2023-04-02 06:39:10,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3014 to 916. [2023-04-02 06:39:10,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 891 states have (on average 1.3973063973063973) internal successors, (1245), 912 states have internal predecessors, (1245), 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 06:39:10,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1248 transitions. [2023-04-02 06:39:10,166 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1248 transitions. Word has length 98 [2023-04-02 06:39:10,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:39:10,166 INFO L495 AbstractCegarLoop]: Abstraction has 916 states and 1248 transitions. [2023-04-02 06:39:10,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 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 06:39:10,167 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1248 transitions. [2023-04-02 06:39:10,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:39:10,168 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:39:10,168 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:39:10,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-04-02 06:39:10,169 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:39:10,169 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:39:10,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1957972561, now seen corresponding path program 1 times [2023-04-02 06:39:10,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:39:10,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061364642] [2023-04-02 06:39:10,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:39:10,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:39:10,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:11,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:39:11,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:11,158 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 06:39:11,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:39:11,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061364642] [2023-04-02 06:39:11,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061364642] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:39:11,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:39:11,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:39:11,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004823200] [2023-04-02 06:39:11,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:39:11,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:39:11,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:39:11,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:39:11,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:39:11,160 INFO L87 Difference]: Start difference. First operand 916 states and 1248 transitions. Second operand has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 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 06:39:15,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:39:15,247 INFO L93 Difference]: Finished difference Result 1876 states and 2605 transitions. [2023-04-02 06:39:15,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:39:15,247 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 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 98 [2023-04-02 06:39:15,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:39:15,251 INFO L225 Difference]: With dead ends: 1876 [2023-04-02 06:39:15,251 INFO L226 Difference]: Without dead ends: 1710 [2023-04-02 06:39:15,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:39:15,252 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 3614 mSDsluCounter, 1862 mSDsCounter, 0 mSdLazyCounter, 2981 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3614 SdHoareTripleChecker+Valid, 2433 SdHoareTripleChecker+Invalid, 2999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-04-02 06:39:15,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3614 Valid, 2433 Invalid, 2999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2981 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-04-02 06:39:15,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2023-04-02 06:39:15,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 916. [2023-04-02 06:39:15,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 891 states have (on average 1.3961840628507296) internal successors, (1244), 912 states have internal predecessors, (1244), 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 06:39:15,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1247 transitions. [2023-04-02 06:39:15,384 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1247 transitions. Word has length 98 [2023-04-02 06:39:15,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:39:15,384 INFO L495 AbstractCegarLoop]: Abstraction has 916 states and 1247 transitions. [2023-04-02 06:39:15,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 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 06:39:15,384 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1247 transitions. [2023-04-02 06:39:15,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 06:39:15,386 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:39:15,386 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:39:15,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-04-02 06:39:15,386 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:39:15,386 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:39:15,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1402444646, now seen corresponding path program 1 times [2023-04-02 06:39:15,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:39:15,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287240098] [2023-04-02 06:39:15,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:39:15,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:39:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:16,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:39:16,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:16,495 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 06:39:16,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:39:16,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287240098] [2023-04-02 06:39:16,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287240098] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:39:16,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:39:16,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:39:16,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46213982] [2023-04-02 06:39:16,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:39:16,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:39:16,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:39:16,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:39:16,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:39:16,498 INFO L87 Difference]: Start difference. First operand 916 states and 1247 transitions. Second operand has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 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 06:39:21,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:39:21,165 INFO L93 Difference]: Finished difference Result 1930 states and 2686 transitions. [2023-04-02 06:39:21,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:39:21,166 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 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 98 [2023-04-02 06:39:21,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:39:21,170 INFO L225 Difference]: With dead ends: 1930 [2023-04-02 06:39:21,170 INFO L226 Difference]: Without dead ends: 1734 [2023-04-02 06:39:21,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:39:21,171 INFO L413 NwaCegarLoop]: 687 mSDtfsCounter, 4375 mSDsluCounter, 2187 mSDsCounter, 0 mSdLazyCounter, 3421 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4375 SdHoareTripleChecker+Valid, 2874 SdHoareTripleChecker+Invalid, 3439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:39:21,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4375 Valid, 2874 Invalid, 3439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3421 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-04-02 06:39:21,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2023-04-02 06:39:21,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 916. [2023-04-02 06:39:21,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 891 states have (on average 1.3950617283950617) internal successors, (1243), 912 states have internal predecessors, (1243), 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 06:39:21,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1246 transitions. [2023-04-02 06:39:21,305 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1246 transitions. Word has length 98 [2023-04-02 06:39:21,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:39:21,305 INFO L495 AbstractCegarLoop]: Abstraction has 916 states and 1246 transitions. [2023-04-02 06:39:21,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 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 06:39:21,305 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1246 transitions. [2023-04-02 06:39:21,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-04-02 06:39:21,307 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:39:21,307 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:39:21,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-04-02 06:39:21,307 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr19ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:39:21,307 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:39:21,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1531485420, now seen corresponding path program 1 times [2023-04-02 06:39:21,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:39:21,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55802966] [2023-04-02 06:39:21,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:39:21,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:39:21,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:22,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:39:22,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:22,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:39:22,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:39:22,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55802966] [2023-04-02 06:39:22,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55802966] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:39:22,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:39:22,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:39:22,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532708800] [2023-04-02 06:39:22,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:39:22,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:39:22,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:39:22,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:39:22,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:39:22,379 INFO L87 Difference]: Start difference. First operand 916 states and 1246 transitions. Second operand has 10 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 06:39:28,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:39:28,080 INFO L93 Difference]: Finished difference Result 1944 states and 2700 transitions. [2023-04-02 06:39:28,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:39:28,080 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 99 [2023-04-02 06:39:28,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:39:28,084 INFO L225 Difference]: With dead ends: 1944 [2023-04-02 06:39:28,085 INFO L226 Difference]: Without dead ends: 1734 [2023-04-02 06:39:28,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:39:28,086 INFO L413 NwaCegarLoop]: 849 mSDtfsCounter, 2021 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 4131 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2021 SdHoareTripleChecker+Valid, 3324 SdHoareTripleChecker+Invalid, 4145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 4131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:39:28,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2021 Valid, 3324 Invalid, 4145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 4131 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-04-02 06:39:28,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2023-04-02 06:39:28,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 912. [2023-04-02 06:39:28,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 887 states have (on average 1.3957158962795941) internal successors, (1238), 908 states have internal predecessors, (1238), 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 06:39:28,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1241 transitions. [2023-04-02 06:39:28,232 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1241 transitions. Word has length 99 [2023-04-02 06:39:28,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:39:28,232 INFO L495 AbstractCegarLoop]: Abstraction has 912 states and 1241 transitions. [2023-04-02 06:39:28,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 06:39:28,233 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1241 transitions. [2023-04-02 06:39:28,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:39:28,234 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:39:28,234 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:39:28,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-04-02 06:39:28,234 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr10ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:39:28,235 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:39:28,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1342018959, now seen corresponding path program 1 times [2023-04-02 06:39:28,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:39:28,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142167749] [2023-04-02 06:39:28,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:39:28,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:39:28,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:29,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:39:29,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:29,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:39:29,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:39:29,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142167749] [2023-04-02 06:39:29,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142167749] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:39:29,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:39:29,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:39:29,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409765285] [2023-04-02 06:39:29,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:39:29,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:39:29,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:39:29,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:39:29,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:39:29,284 INFO L87 Difference]: Start difference. First operand 912 states and 1241 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 06:39:33,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:39:33,688 INFO L93 Difference]: Finished difference Result 1850 states and 2557 transitions. [2023-04-02 06:39:33,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:39:33,714 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 100 [2023-04-02 06:39:33,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:39:33,728 INFO L225 Difference]: With dead ends: 1850 [2023-04-02 06:39:33,728 INFO L226 Difference]: Without dead ends: 1682 [2023-04-02 06:39:33,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:39:33,729 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 4555 mSDsluCounter, 1914 mSDsCounter, 0 mSdLazyCounter, 3136 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4555 SdHoareTripleChecker+Valid, 2509 SdHoareTripleChecker+Invalid, 3154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-04-02 06:39:33,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4555 Valid, 2509 Invalid, 3154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3136 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-04-02 06:39:33,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2023-04-02 06:39:33,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 912. [2023-04-02 06:39:33,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 887 states have (on average 1.3934611048478016) internal successors, (1236), 908 states have internal predecessors, (1236), 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 06:39:33,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1239 transitions. [2023-04-02 06:39:33,895 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1239 transitions. Word has length 100 [2023-04-02 06:39:33,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:39:33,895 INFO L495 AbstractCegarLoop]: Abstraction has 912 states and 1239 transitions. [2023-04-02 06:39:33,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 06:39:33,895 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1239 transitions. [2023-04-02 06:39:33,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:39:33,896 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:39:33,897 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:39:33,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-04-02 06:39:33,897 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr8ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:39:33,897 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:39:33,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1212568214, now seen corresponding path program 1 times [2023-04-02 06:39:33,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:39:33,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498048231] [2023-04-02 06:39:33,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:39:33,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:39:33,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:34,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:39:34,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:34,783 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 06:39:34,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:39:34,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498048231] [2023-04-02 06:39:34,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498048231] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:39:34,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:39:34,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:39:34,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214787985] [2023-04-02 06:39:34,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:39:34,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:39:34,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:39:34,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:39:34,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:39:34,785 INFO L87 Difference]: Start difference. First operand 912 states and 1239 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 06:39:39,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:39:39,439 INFO L93 Difference]: Finished difference Result 1908 states and 2642 transitions. [2023-04-02 06:39:39,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:39:39,440 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 100 [2023-04-02 06:39:39,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:39:39,443 INFO L225 Difference]: With dead ends: 1908 [2023-04-02 06:39:39,443 INFO L226 Difference]: Without dead ends: 1706 [2023-04-02 06:39:39,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:39:39,445 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 3239 mSDsluCounter, 2118 mSDsCounter, 0 mSdLazyCounter, 3395 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3239 SdHoareTripleChecker+Valid, 2783 SdHoareTripleChecker+Invalid, 3410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:39:39,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3239 Valid, 2783 Invalid, 3410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3395 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-04-02 06:39:39,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2023-04-02 06:39:39,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 912. [2023-04-02 06:39:39,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 887 states have (on average 1.391206313416009) internal successors, (1234), 908 states have internal predecessors, (1234), 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 06:39:39,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1237 transitions. [2023-04-02 06:39:39,599 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1237 transitions. Word has length 100 [2023-04-02 06:39:39,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:39:39,599 INFO L495 AbstractCegarLoop]: Abstraction has 912 states and 1237 transitions. [2023-04-02 06:39:39,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 06:39:39,600 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1237 transitions. [2023-04-02 06:39:39,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:39:39,601 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:39:39,601 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:39:39,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-04-02 06:39:39,601 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr3ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:39:39,601 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:39:39,601 INFO L85 PathProgramCache]: Analyzing trace with hash 614036515, now seen corresponding path program 1 times [2023-04-02 06:39:39,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:39:39,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509976047] [2023-04-02 06:39:39,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:39:39,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:39:39,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:40,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:39:40,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:40,695 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 06:39:40,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:39:40,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509976047] [2023-04-02 06:39:40,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509976047] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:39:40,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:39:40,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:39:40,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905285277] [2023-04-02 06:39:40,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:39:40,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:39:40,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:39:40,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:39:40,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:39:40,697 INFO L87 Difference]: Start difference. First operand 912 states and 1237 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 06:39:45,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:39:45,383 INFO L93 Difference]: Finished difference Result 1916 states and 2646 transitions. [2023-04-02 06:39:45,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:39:45,383 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 100 [2023-04-02 06:39:45,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:39:45,386 INFO L225 Difference]: With dead ends: 1916 [2023-04-02 06:39:45,386 INFO L226 Difference]: Without dead ends: 1706 [2023-04-02 06:39:45,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:39:45,388 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 4753 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 3149 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4753 SdHoareTripleChecker+Valid, 2629 SdHoareTripleChecker+Invalid, 3168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 3149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-04-02 06:39:45,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4753 Valid, 2629 Invalid, 3168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 3149 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-04-02 06:39:45,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2023-04-02 06:39:45,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 912. [2023-04-02 06:39:45,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 887 states have (on average 1.3889515219842166) internal successors, (1232), 908 states have internal predecessors, (1232), 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 06:39:45,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1235 transitions. [2023-04-02 06:39:45,549 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1235 transitions. Word has length 100 [2023-04-02 06:39:45,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:39:45,549 INFO L495 AbstractCegarLoop]: Abstraction has 912 states and 1235 transitions. [2023-04-02 06:39:45,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 06:39:45,553 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1235 transitions. [2023-04-02 06:39:45,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:39:45,554 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:39:45,554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:39:45,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-04-02 06:39:45,554 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr5ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:39:45,555 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:39:45,555 INFO L85 PathProgramCache]: Analyzing trace with hash 463404509, now seen corresponding path program 1 times [2023-04-02 06:39:45,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:39:45,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941389501] [2023-04-02 06:39:45,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:39:45,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:39:45,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:46,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:39:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:46,804 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 06:39:46,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:39:46,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941389501] [2023-04-02 06:39:46,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941389501] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:39:46,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:39:46,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 06:39:46,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460850392] [2023-04-02 06:39:46,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:39:46,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 06:39:46,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:39:46,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 06:39:46,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 06:39:46,806 INFO L87 Difference]: Start difference. First operand 912 states and 1235 transitions. Second operand has 13 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 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 06:39:54,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:39:54,857 INFO L93 Difference]: Finished difference Result 3356 states and 4719 transitions. [2023-04-02 06:39:54,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 06:39:54,859 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 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 100 [2023-04-02 06:39:54,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:39:54,863 INFO L225 Difference]: With dead ends: 3356 [2023-04-02 06:39:54,863 INFO L226 Difference]: Without dead ends: 3080 [2023-04-02 06:39:54,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=325, Invalid=935, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 06:39:54,865 INFO L413 NwaCegarLoop]: 932 mSDtfsCounter, 7662 mSDsluCounter, 3910 mSDsCounter, 0 mSdLazyCounter, 5460 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7662 SdHoareTripleChecker+Valid, 4842 SdHoareTripleChecker+Invalid, 5683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 5460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:39:54,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7662 Valid, 4842 Invalid, 5683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 5460 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-04-02 06:39:54,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3080 states. [2023-04-02 06:39:55,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3080 to 920. [2023-04-02 06:39:55,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 895 states have (on average 1.3854748603351956) internal successors, (1240), 916 states have internal predecessors, (1240), 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 06:39:55,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1243 transitions. [2023-04-02 06:39:55,041 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1243 transitions. Word has length 100 [2023-04-02 06:39:55,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:39:55,042 INFO L495 AbstractCegarLoop]: Abstraction has 920 states and 1243 transitions. [2023-04-02 06:39:55,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 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 06:39:55,042 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1243 transitions. [2023-04-02 06:39:55,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:39:55,043 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:39:55,043 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:39:55,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-04-02 06:39:55,043 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:39:55,043 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:39:55,043 INFO L85 PathProgramCache]: Analyzing trace with hash -423351913, now seen corresponding path program 1 times [2023-04-02 06:39:55,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:39:55,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459481762] [2023-04-02 06:39:55,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:39:55,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:39:55,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:56,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:39:56,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:39:56,192 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 06:39:56,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:39:56,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459481762] [2023-04-02 06:39:56,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459481762] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:39:56,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:39:56,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:39:56,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871471070] [2023-04-02 06:39:56,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:39:56,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:39:56,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:39:56,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:39:56,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:39:56,194 INFO L87 Difference]: Start difference. First operand 920 states and 1243 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 06:40:00,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:40:00,658 INFO L93 Difference]: Finished difference Result 1852 states and 2552 transitions. [2023-04-02 06:40:00,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:40:00,658 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 100 [2023-04-02 06:40:00,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:40:00,661 INFO L225 Difference]: With dead ends: 1852 [2023-04-02 06:40:00,661 INFO L226 Difference]: Without dead ends: 1690 [2023-04-02 06:40:00,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:40:00,662 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 4268 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 3339 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4268 SdHoareTripleChecker+Valid, 2741 SdHoareTripleChecker+Invalid, 3357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:40:00,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4268 Valid, 2741 Invalid, 3357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3339 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-04-02 06:40:00,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2023-04-02 06:40:00,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 920. [2023-04-02 06:40:00,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 895 states have (on average 1.3832402234636871) internal successors, (1238), 916 states have internal predecessors, (1238), 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 06:40:00,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1241 transitions. [2023-04-02 06:40:00,853 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1241 transitions. Word has length 100 [2023-04-02 06:40:00,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:40:00,853 INFO L495 AbstractCegarLoop]: Abstraction has 920 states and 1241 transitions. [2023-04-02 06:40:00,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 06:40:00,853 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1241 transitions. [2023-04-02 06:40:00,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:40:00,854 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:40:00,854 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:40:00,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-04-02 06:40:00,855 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr15ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:40:00,855 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:40:00,855 INFO L85 PathProgramCache]: Analyzing trace with hash -983012777, now seen corresponding path program 1 times [2023-04-02 06:40:00,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:40:00,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137380568] [2023-04-02 06:40:00,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:40:00,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:40:00,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:01,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:01,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:01,764 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 06:40:01,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:01,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137380568] [2023-04-02 06:40:01,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137380568] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:01,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:01,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:40:01,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540696760] [2023-04-02 06:40:01,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:01,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:40:01,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:01,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:40:01,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:40:01,766 INFO L87 Difference]: Start difference. First operand 920 states and 1241 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 06:40:06,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:40:06,551 INFO L93 Difference]: Finished difference Result 1854 states and 2551 transitions. [2023-04-02 06:40:06,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:40:06,552 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 100 [2023-04-02 06:40:06,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:40:06,554 INFO L225 Difference]: With dead ends: 1854 [2023-04-02 06:40:06,554 INFO L226 Difference]: Without dead ends: 1690 [2023-04-02 06:40:06,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:40:06,557 INFO L413 NwaCegarLoop]: 709 mSDtfsCounter, 3130 mSDsluCounter, 2177 mSDsCounter, 0 mSdLazyCounter, 3581 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3130 SdHoareTripleChecker+Valid, 2886 SdHoareTripleChecker+Invalid, 3599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-04-02 06:40:06,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3130 Valid, 2886 Invalid, 3599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3581 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-04-02 06:40:06,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2023-04-02 06:40:06,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 920. [2023-04-02 06:40:06,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 895 states have (on average 1.3810055865921789) internal successors, (1236), 916 states have internal predecessors, (1236), 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 06:40:06,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1239 transitions. [2023-04-02 06:40:06,759 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1239 transitions. Word has length 100 [2023-04-02 06:40:06,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:40:06,759 INFO L495 AbstractCegarLoop]: Abstraction has 920 states and 1239 transitions. [2023-04-02 06:40:06,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 06:40:06,760 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1239 transitions. [2023-04-02 06:40:06,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:40:06,761 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:40:06,761 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:40:06,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-04-02 06:40:06,761 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:40:06,762 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:40:06,762 INFO L85 PathProgramCache]: Analyzing trace with hash 525984905, now seen corresponding path program 1 times [2023-04-02 06:40:06,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:40:06,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575214222] [2023-04-02 06:40:06,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:40:06,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:40:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:07,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:07,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:07,766 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 06:40:07,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:07,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575214222] [2023-04-02 06:40:07,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575214222] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:07,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:07,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:40:07,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577527550] [2023-04-02 06:40:07,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:07,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:40:07,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:07,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:40:07,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:40:07,768 INFO L87 Difference]: Start difference. First operand 920 states and 1239 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 06:40:12,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:40:12,506 INFO L93 Difference]: Finished difference Result 1854 states and 2547 transitions. [2023-04-02 06:40:12,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:40:12,507 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 100 [2023-04-02 06:40:12,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:40:12,509 INFO L225 Difference]: With dead ends: 1854 [2023-04-02 06:40:12,509 INFO L226 Difference]: Without dead ends: 1690 [2023-04-02 06:40:12,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:40:12,510 INFO L413 NwaCegarLoop]: 653 mSDtfsCounter, 3051 mSDsluCounter, 2707 mSDsCounter, 0 mSdLazyCounter, 3766 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3051 SdHoareTripleChecker+Valid, 3360 SdHoareTripleChecker+Invalid, 3781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:40:12,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3051 Valid, 3360 Invalid, 3781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3766 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-04-02 06:40:12,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2023-04-02 06:40:12,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 920. [2023-04-02 06:40:12,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 895 states have (on average 1.3787709497206704) internal successors, (1234), 916 states have internal predecessors, (1234), 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 06:40:12,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1237 transitions. [2023-04-02 06:40:12,714 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1237 transitions. Word has length 100 [2023-04-02 06:40:12,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:40:12,714 INFO L495 AbstractCegarLoop]: Abstraction has 920 states and 1237 transitions. [2023-04-02 06:40:12,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 06:40:12,715 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1237 transitions. [2023-04-02 06:40:12,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:40:12,715 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:40:12,716 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:40:12,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-04-02 06:40:12,716 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr13ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:40:12,716 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:40:12,716 INFO L85 PathProgramCache]: Analyzing trace with hash -824034060, now seen corresponding path program 1 times [2023-04-02 06:40:12,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:40:12,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524739958] [2023-04-02 06:40:12,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:40:12,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:40:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:13,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:13,768 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 06:40:13,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:13,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524739958] [2023-04-02 06:40:13,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524739958] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:13,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:13,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:40:13,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51364362] [2023-04-02 06:40:13,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:13,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:40:13,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:13,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:40:13,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:40:13,770 INFO L87 Difference]: Start difference. First operand 920 states and 1237 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 06:40:19,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:40:19,039 INFO L93 Difference]: Finished difference Result 1904 states and 2617 transitions. [2023-04-02 06:40:19,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:40:19,039 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 100 [2023-04-02 06:40:19,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:40:19,042 INFO L225 Difference]: With dead ends: 1904 [2023-04-02 06:40:19,042 INFO L226 Difference]: Without dead ends: 1714 [2023-04-02 06:40:19,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:40:19,044 INFO L413 NwaCegarLoop]: 769 mSDtfsCounter, 3408 mSDsluCounter, 2326 mSDsCounter, 0 mSdLazyCounter, 3875 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3408 SdHoareTripleChecker+Valid, 3095 SdHoareTripleChecker+Invalid, 3892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 3875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-04-02 06:40:19,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3408 Valid, 3095 Invalid, 3892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 3875 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-04-02 06:40:19,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1714 states. [2023-04-02 06:40:19,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1714 to 920. [2023-04-02 06:40:19,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 895 states have (on average 1.3765363128491621) internal successors, (1232), 916 states have internal predecessors, (1232), 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 06:40:19,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1235 transitions. [2023-04-02 06:40:19,250 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1235 transitions. Word has length 100 [2023-04-02 06:40:19,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:40:19,251 INFO L495 AbstractCegarLoop]: Abstraction has 920 states and 1235 transitions. [2023-04-02 06:40:19,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 06:40:19,251 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1235 transitions. [2023-04-02 06:40:19,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:40:19,252 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:40:19,252 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:40:19,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-04-02 06:40:19,252 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr19ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:40:19,253 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:40:19,253 INFO L85 PathProgramCache]: Analyzing trace with hash -792680001, now seen corresponding path program 1 times [2023-04-02 06:40:19,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:40:19,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638343429] [2023-04-02 06:40:19,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:40:19,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:40:19,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:20,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:20,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:20,126 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 06:40:20,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:20,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638343429] [2023-04-02 06:40:20,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638343429] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:20,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:20,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:40:20,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388070404] [2023-04-02 06:40:20,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:20,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:40:20,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:20,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:40:20,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:40:20,127 INFO L87 Difference]: Start difference. First operand 920 states and 1235 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 06:40:25,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:40:25,186 INFO L93 Difference]: Finished difference Result 1848 states and 2535 transitions. [2023-04-02 06:40:25,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:40:25,186 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 100 [2023-04-02 06:40:25,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:40:25,189 INFO L225 Difference]: With dead ends: 1848 [2023-04-02 06:40:25,189 INFO L226 Difference]: Without dead ends: 1690 [2023-04-02 06:40:25,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:40:25,190 INFO L413 NwaCegarLoop]: 677 mSDtfsCounter, 3776 mSDsluCounter, 2163 mSDsCounter, 0 mSdLazyCounter, 3407 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3776 SdHoareTripleChecker+Valid, 2840 SdHoareTripleChecker+Invalid, 3425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-04-02 06:40:25,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3776 Valid, 2840 Invalid, 3425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3407 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-04-02 06:40:25,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2023-04-02 06:40:25,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 920. [2023-04-02 06:40:25,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 895 states have (on average 1.3754189944134079) internal successors, (1231), 916 states have internal predecessors, (1231), 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 06:40:25,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1234 transitions. [2023-04-02 06:40:25,385 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1234 transitions. Word has length 100 [2023-04-02 06:40:25,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:40:25,386 INFO L495 AbstractCegarLoop]: Abstraction has 920 states and 1234 transitions. [2023-04-02 06:40:25,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 06:40:25,386 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1234 transitions. [2023-04-02 06:40:25,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:40:25,387 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:40:25,387 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:40:25,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-04-02 06:40:25,387 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr17ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:40:25,387 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:40:25,387 INFO L85 PathProgramCache]: Analyzing trace with hash -922130746, now seen corresponding path program 1 times [2023-04-02 06:40:25,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:40:25,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062388178] [2023-04-02 06:40:25,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:40:25,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:40:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:26,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:26,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:26,352 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 06:40:26,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:26,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062388178] [2023-04-02 06:40:26,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062388178] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:26,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:26,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:40:26,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709023497] [2023-04-02 06:40:26,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:26,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:40:26,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:26,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:40:26,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:40:26,353 INFO L87 Difference]: Start difference. First operand 920 states and 1234 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 06:40:31,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:40:31,314 INFO L93 Difference]: Finished difference Result 1894 states and 2597 transitions. [2023-04-02 06:40:31,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:40:31,316 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 100 [2023-04-02 06:40:31,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:40:31,319 INFO L225 Difference]: With dead ends: 1894 [2023-04-02 06:40:31,319 INFO L226 Difference]: Without dead ends: 1714 [2023-04-02 06:40:31,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:40:31,320 INFO L413 NwaCegarLoop]: 722 mSDtfsCounter, 2123 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 3571 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2123 SdHoareTripleChecker+Valid, 2902 SdHoareTripleChecker+Invalid, 3586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-04-02 06:40:31,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2123 Valid, 2902 Invalid, 3586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3571 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-04-02 06:40:31,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1714 states. [2023-04-02 06:40:31,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1714 to 920. [2023-04-02 06:40:31,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 895 states have (on average 1.3743016759776536) internal successors, (1230), 916 states have internal predecessors, (1230), 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 06:40:31,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1233 transitions. [2023-04-02 06:40:31,518 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1233 transitions. Word has length 100 [2023-04-02 06:40:31,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:40:31,519 INFO L495 AbstractCegarLoop]: Abstraction has 920 states and 1233 transitions. [2023-04-02 06:40:31,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 06:40:31,519 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1233 transitions. [2023-04-02 06:40:31,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:40:31,520 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:40:31,520 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:40:31,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-04-02 06:40:31,520 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:40:31,520 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:40:31,520 INFO L85 PathProgramCache]: Analyzing trace with hash -362774070, now seen corresponding path program 1 times [2023-04-02 06:40:31,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:40:31,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605633475] [2023-04-02 06:40:31,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:40:31,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:40:31,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:32,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:32,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:32,433 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 06:40:32,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:32,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605633475] [2023-04-02 06:40:32,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605633475] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:32,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:32,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:40:32,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526663710] [2023-04-02 06:40:32,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:32,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:40:32,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:32,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:40:32,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:40:32,434 INFO L87 Difference]: Start difference. First operand 920 states and 1233 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 06:40:37,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:40:37,803 INFO L93 Difference]: Finished difference Result 1844 states and 2529 transitions. [2023-04-02 06:40:37,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:40:37,803 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 100 [2023-04-02 06:40:37,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:40:37,818 INFO L225 Difference]: With dead ends: 1844 [2023-04-02 06:40:37,818 INFO L226 Difference]: Without dead ends: 1690 [2023-04-02 06:40:37,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:40:37,819 INFO L413 NwaCegarLoop]: 749 mSDtfsCounter, 3714 mSDsluCounter, 2377 mSDsCounter, 0 mSdLazyCounter, 3797 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3714 SdHoareTripleChecker+Valid, 3126 SdHoareTripleChecker+Invalid, 3814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 3797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-04-02 06:40:37,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3714 Valid, 3126 Invalid, 3814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 3797 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-04-02 06:40:37,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2023-04-02 06:40:38,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 920. [2023-04-02 06:40:38,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 895 states have (on average 1.3731843575418994) internal successors, (1229), 916 states have internal predecessors, (1229), 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 06:40:38,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1232 transitions. [2023-04-02 06:40:38,025 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1232 transitions. Word has length 100 [2023-04-02 06:40:38,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:40:38,025 INFO L495 AbstractCegarLoop]: Abstraction has 920 states and 1232 transitions. [2023-04-02 06:40:38,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 06:40:38,025 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1232 transitions. [2023-04-02 06:40:38,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:40:38,026 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:40:38,026 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:40:38,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-04-02 06:40:38,026 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr20ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:40:38,027 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:40:38,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1833683915, now seen corresponding path program 1 times [2023-04-02 06:40:38,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:40:38,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867830010] [2023-04-02 06:40:38,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:40:38,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:40:38,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:38,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:38,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:38,893 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 06:40:38,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:38,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867830010] [2023-04-02 06:40:38,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867830010] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:38,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:38,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:40:38,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203947548] [2023-04-02 06:40:38,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:38,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:40:38,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:38,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:40:38,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:40:38,895 INFO L87 Difference]: Start difference. First operand 920 states and 1232 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 06:40:44,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:40:44,063 INFO L93 Difference]: Finished difference Result 1848 states and 2532 transitions. [2023-04-02 06:40:44,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:40:44,063 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 100 [2023-04-02 06:40:44,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:40:44,065 INFO L225 Difference]: With dead ends: 1848 [2023-04-02 06:40:44,065 INFO L226 Difference]: Without dead ends: 1690 [2023-04-02 06:40:44,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:40:44,066 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 3833 mSDsluCounter, 2322 mSDsCounter, 0 mSdLazyCounter, 3756 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3833 SdHoareTripleChecker+Valid, 3081 SdHoareTripleChecker+Invalid, 3774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-04-02 06:40:44,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3833 Valid, 3081 Invalid, 3774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3756 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-04-02 06:40:44,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2023-04-02 06:40:44,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 920. [2023-04-02 06:40:44,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 895 states have (on average 1.3720670391061454) internal successors, (1228), 916 states have internal predecessors, (1228), 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 06:40:44,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1231 transitions. [2023-04-02 06:40:44,272 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1231 transitions. Word has length 100 [2023-04-02 06:40:44,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:40:44,272 INFO L495 AbstractCegarLoop]: Abstraction has 920 states and 1231 transitions. [2023-04-02 06:40:44,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 06:40:44,272 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1231 transitions. [2023-04-02 06:40:44,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:40:44,273 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:40:44,273 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:40:44,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-04-02 06:40:44,273 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:40:44,273 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:40:44,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1330137809, now seen corresponding path program 1 times [2023-04-02 06:40:44,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:40:44,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575971439] [2023-04-02 06:40:44,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:40:44,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:40:44,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:45,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:45,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:45,448 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 06:40:45,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:45,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575971439] [2023-04-02 06:40:45,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575971439] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:45,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:45,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:40:45,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684223473] [2023-04-02 06:40:45,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:45,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:40:45,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:45,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:40:45,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:40:45,451 INFO L87 Difference]: Start difference. First operand 920 states and 1231 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 06:40:50,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:40:50,762 INFO L93 Difference]: Finished difference Result 1843 states and 2525 transitions. [2023-04-02 06:40:50,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:40:50,762 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 100 [2023-04-02 06:40:50,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:40:50,764 INFO L225 Difference]: With dead ends: 1843 [2023-04-02 06:40:50,764 INFO L226 Difference]: Without dead ends: 1690 [2023-04-02 06:40:50,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-04-02 06:40:50,765 INFO L413 NwaCegarLoop]: 753 mSDtfsCounter, 3697 mSDsluCounter, 2390 mSDsCounter, 0 mSdLazyCounter, 3782 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3697 SdHoareTripleChecker+Valid, 3143 SdHoareTripleChecker+Invalid, 3799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 3782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-04-02 06:40:50,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3697 Valid, 3143 Invalid, 3799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 3782 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-04-02 06:40:50,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2023-04-02 06:40:50,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 920. [2023-04-02 06:40:50,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 895 states have (on average 1.3709497206703911) internal successors, (1227), 916 states have internal predecessors, (1227), 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 06:40:50,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1230 transitions. [2023-04-02 06:40:50,979 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1230 transitions. Word has length 100 [2023-04-02 06:40:50,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:40:50,979 INFO L495 AbstractCegarLoop]: Abstraction has 920 states and 1230 transitions. [2023-04-02 06:40:50,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 06:40:50,980 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1230 transitions. [2023-04-02 06:40:50,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:40:50,981 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:40:50,981 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:40:50,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-04-02 06:40:50,982 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:40:50,982 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:40:50,982 INFO L85 PathProgramCache]: Analyzing trace with hash 996588777, now seen corresponding path program 1 times [2023-04-02 06:40:50,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:40:50,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092706917] [2023-04-02 06:40:50,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:40:50,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:40:51,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:51,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:51,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:51,863 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 06:40:51,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:51,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092706917] [2023-04-02 06:40:51,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092706917] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:51,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:51,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:40:51,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914607203] [2023-04-02 06:40:51,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:51,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:40:51,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:51,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:40:51,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:40:51,864 INFO L87 Difference]: Start difference. First operand 920 states and 1230 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 06:40:57,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:40:57,332 INFO L93 Difference]: Finished difference Result 1844 states and 2525 transitions. [2023-04-02 06:40:57,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:40:57,332 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 100 [2023-04-02 06:40:57,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:40:57,348 INFO L225 Difference]: With dead ends: 1844 [2023-04-02 06:40:57,348 INFO L226 Difference]: Without dead ends: 1690 [2023-04-02 06:40:57,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:40:57,353 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 3845 mSDsluCounter, 2321 mSDsCounter, 0 mSdLazyCounter, 3743 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3845 SdHoareTripleChecker+Valid, 3080 SdHoareTripleChecker+Invalid, 3761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-04-02 06:40:57,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3845 Valid, 3080 Invalid, 3761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3743 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-04-02 06:40:57,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2023-04-02 06:40:57,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 920. [2023-04-02 06:40:57,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 895 states have (on average 1.3698324022346369) internal successors, (1226), 916 states have internal predecessors, (1226), 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 06:40:57,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1229 transitions. [2023-04-02 06:40:57,570 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1229 transitions. Word has length 100 [2023-04-02 06:40:57,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:40:57,570 INFO L495 AbstractCegarLoop]: Abstraction has 920 states and 1229 transitions. [2023-04-02 06:40:57,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 06:40:57,570 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1229 transitions. [2023-04-02 06:40:57,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:40:57,571 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:40:57,571 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:40:57,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-04-02 06:40:57,571 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:40:57,572 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:40:57,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1276110451, now seen corresponding path program 1 times [2023-04-02 06:40:57,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:40:57,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801864065] [2023-04-02 06:40:57,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:40:57,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:40:57,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:58,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:40:58,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:40:58,589 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 06:40:58,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:40:58,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801864065] [2023-04-02 06:40:58,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801864065] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:40:58,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:40:58,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:40:58,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133370636] [2023-04-02 06:40:58,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:40:58,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:40:58,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:40:58,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:40:58,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:40:58,591 INFO L87 Difference]: Start difference. First operand 920 states and 1229 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 06:41:03,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:41:03,233 INFO L93 Difference]: Finished difference Result 1844 states and 2523 transitions. [2023-04-02 06:41:03,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:41:03,233 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 100 [2023-04-02 06:41:03,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:41:03,235 INFO L225 Difference]: With dead ends: 1844 [2023-04-02 06:41:03,235 INFO L226 Difference]: Without dead ends: 1690 [2023-04-02 06:41:03,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:41:03,237 INFO L413 NwaCegarLoop]: 703 mSDtfsCounter, 3704 mSDsluCounter, 2245 mSDsCounter, 0 mSdLazyCounter, 3472 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3704 SdHoareTripleChecker+Valid, 2948 SdHoareTripleChecker+Invalid, 3490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:41:03,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3704 Valid, 2948 Invalid, 3490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3472 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-04-02 06:41:03,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2023-04-02 06:41:03,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 920. [2023-04-02 06:41:03,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 895 states have (on average 1.3687150837988826) internal successors, (1225), 916 states have internal predecessors, (1225), 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 06:41:03,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1228 transitions. [2023-04-02 06:41:03,491 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1228 transitions. Word has length 100 [2023-04-02 06:41:03,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:41:03,491 INFO L495 AbstractCegarLoop]: Abstraction has 920 states and 1228 transitions. [2023-04-02 06:41:03,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 06:41:03,491 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1228 transitions. [2023-04-02 06:41:03,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-02 06:41:03,492 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:41:03,492 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:41:03,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-04-02 06:41:03,493 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr21ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:41:03,493 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:41:03,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1835121893, now seen corresponding path program 1 times [2023-04-02 06:41:03,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:41:03,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587587345] [2023-04-02 06:41:03,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:41:03,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:41:03,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:04,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:41:04,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:04,490 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 06:41:04,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:41:04,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587587345] [2023-04-02 06:41:04,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587587345] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:41:04,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:41:04,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:41:04,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133557525] [2023-04-02 06:41:04,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:41:04,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:41:04,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:41:04,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:41:04,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:41:04,493 INFO L87 Difference]: Start difference. First operand 920 states and 1228 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 06:41:09,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:41:09,720 INFO L93 Difference]: Finished difference Result 1848 states and 2525 transitions. [2023-04-02 06:41:09,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:41:09,720 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 100 [2023-04-02 06:41:09,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:41:09,722 INFO L225 Difference]: With dead ends: 1848 [2023-04-02 06:41:09,722 INFO L226 Difference]: Without dead ends: 1690 [2023-04-02 06:41:09,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:41:09,724 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 2830 mSDsluCounter, 2951 mSDsCounter, 0 mSdLazyCounter, 4158 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2830 SdHoareTripleChecker+Valid, 3715 SdHoareTripleChecker+Invalid, 4173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 4158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-04-02 06:41:09,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2830 Valid, 3715 Invalid, 4173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 4158 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-04-02 06:41:09,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2023-04-02 06:41:09,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 920. [2023-04-02 06:41:09,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 895 states have (on average 1.3675977653631284) internal successors, (1224), 916 states have internal predecessors, (1224), 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 06:41:09,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1227 transitions. [2023-04-02 06:41:09,958 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1227 transitions. Word has length 100 [2023-04-02 06:41:09,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:41:09,958 INFO L495 AbstractCegarLoop]: Abstraction has 920 states and 1227 transitions. [2023-04-02 06:41:09,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 06:41:09,958 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1227 transitions. [2023-04-02 06:41:09,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-04-02 06:41:09,959 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:41:09,960 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:41:09,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-04-02 06:41:09,961 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting mainErr5ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:41:09,961 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:41:09,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1445282856, now seen corresponding path program 1 times [2023-04-02 06:41:09,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:41:09,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795333250] [2023-04-02 06:41:09,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:41:09,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:41:09,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:11,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:41:11,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:11,208 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 06:41:11,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:41:11,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795333250] [2023-04-02 06:41:11,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795333250] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:41:11,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:41:11,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:41:11,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668804083] [2023-04-02 06:41:11,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:41:11,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:41:11,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:41:11,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:41:11,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:41:11,210 INFO L87 Difference]: Start difference. First operand 920 states and 1227 transitions. Second operand has 10 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 06:41:16,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:41:16,821 INFO L93 Difference]: Finished difference Result 2010 states and 2751 transitions. [2023-04-02 06:41:16,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:41:16,822 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 101 [2023-04-02 06:41:16,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:41:16,823 INFO L225 Difference]: With dead ends: 2010 [2023-04-02 06:41:16,823 INFO L226 Difference]: Without dead ends: 1734 [2023-04-02 06:41:16,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:41:16,824 INFO L413 NwaCegarLoop]: 802 mSDtfsCounter, 3176 mSDsluCounter, 2253 mSDsCounter, 0 mSdLazyCounter, 3665 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3176 SdHoareTripleChecker+Valid, 3055 SdHoareTripleChecker+Invalid, 3681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-04-02 06:41:16,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3176 Valid, 3055 Invalid, 3681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 3665 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-04-02 06:41:16,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2023-04-02 06:41:17,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 912. [2023-04-02 06:41:17,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 887 states have (on average 1.3686583990980834) internal successors, (1214), 908 states have internal predecessors, (1214), 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 06:41:17,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1217 transitions. [2023-04-02 06:41:17,048 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1217 transitions. Word has length 101 [2023-04-02 06:41:17,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:41:17,048 INFO L495 AbstractCegarLoop]: Abstraction has 912 states and 1217 transitions. [2023-04-02 06:41:17,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 06:41:17,048 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1217 transitions. [2023-04-02 06:41:17,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-04-02 06:41:17,049 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:41:17,049 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:41:17,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-04-02 06:41:17,050 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting mainErr5ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:41:17,050 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:41:17,050 INFO L85 PathProgramCache]: Analyzing trace with hash -153595835, now seen corresponding path program 1 times [2023-04-02 06:41:17,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:41:17,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614565148] [2023-04-02 06:41:17,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:41:17,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:41:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:17,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:41:17,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:17,961 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 06:41:17,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:41:17,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614565148] [2023-04-02 06:41:17,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614565148] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:41:17,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:41:17,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:41:17,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645852737] [2023-04-02 06:41:17,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:41:17,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:41:17,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:41:17,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:41:17,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:41:17,962 INFO L87 Difference]: Start difference. First operand 912 states and 1217 transitions. Second operand has 10 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 06:41:22,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:41:22,582 INFO L93 Difference]: Finished difference Result 1852 states and 2529 transitions. [2023-04-02 06:41:22,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:41:22,583 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 102 [2023-04-02 06:41:22,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:41:22,585 INFO L225 Difference]: With dead ends: 1852 [2023-04-02 06:41:22,585 INFO L226 Difference]: Without dead ends: 1682 [2023-04-02 06:41:22,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:41:22,586 INFO L413 NwaCegarLoop]: 656 mSDtfsCounter, 3125 mSDsluCounter, 2503 mSDsCounter, 0 mSdLazyCounter, 3474 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3125 SdHoareTripleChecker+Valid, 3159 SdHoareTripleChecker+Invalid, 3489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:41:22,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3125 Valid, 3159 Invalid, 3489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3474 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-04-02 06:41:22,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2023-04-02 06:41:22,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 912. [2023-04-02 06:41:22,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 887 states have (on average 1.3664036076662909) internal successors, (1212), 908 states have internal predecessors, (1212), 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 06:41:22,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1215 transitions. [2023-04-02 06:41:22,840 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1215 transitions. Word has length 102 [2023-04-02 06:41:22,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:41:22,840 INFO L495 AbstractCegarLoop]: Abstraction has 912 states and 1215 transitions. [2023-04-02 06:41:22,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 06:41:22,840 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1215 transitions. [2023-04-02 06:41:22,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-04-02 06:41:22,841 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:41:22,841 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:41:22,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-04-02 06:41:22,841 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:41:22,841 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:41:22,842 INFO L85 PathProgramCache]: Analyzing trace with hash -2082752347, now seen corresponding path program 1 times [2023-04-02 06:41:22,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:41:22,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486905494] [2023-04-02 06:41:22,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:41:22,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:41:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:23,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:41:23,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:23,926 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 06:41:23,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:41:23,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486905494] [2023-04-02 06:41:23,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486905494] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:41:23,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:41:23,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:41:23,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370207428] [2023-04-02 06:41:23,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:41:23,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:41:23,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:41:23,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:41:23,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:41:23,928 INFO L87 Difference]: Start difference. First operand 912 states and 1215 transitions. Second operand has 10 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 06:41:28,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:41:28,983 INFO L93 Difference]: Finished difference Result 1788 states and 2427 transitions. [2023-04-02 06:41:28,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:41:28,983 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 102 [2023-04-02 06:41:28,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:41:28,985 INFO L225 Difference]: With dead ends: 1788 [2023-04-02 06:41:28,985 INFO L226 Difference]: Without dead ends: 1634 [2023-04-02 06:41:28,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:41:28,986 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 3094 mSDsluCounter, 2168 mSDsCounter, 0 mSdLazyCounter, 3308 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3094 SdHoareTripleChecker+Valid, 2771 SdHoareTripleChecker+Invalid, 3323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:41:28,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3094 Valid, 2771 Invalid, 3323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3308 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-04-02 06:41:28,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2023-04-02 06:41:29,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 912. [2023-04-02 06:41:29,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 887 states have (on average 1.3641488162344984) internal successors, (1210), 908 states have internal predecessors, (1210), 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 06:41:29,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1213 transitions. [2023-04-02 06:41:29,229 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1213 transitions. Word has length 102 [2023-04-02 06:41:29,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:41:29,229 INFO L495 AbstractCegarLoop]: Abstraction has 912 states and 1213 transitions. [2023-04-02 06:41:29,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 06:41:29,229 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1213 transitions. [2023-04-02 06:41:29,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-04-02 06:41:29,230 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:41:29,230 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:41:29,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-04-02 06:41:29,231 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting mainErr8ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:41:29,231 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:41:29,231 INFO L85 PathProgramCache]: Analyzing trace with hash -816908503, now seen corresponding path program 1 times [2023-04-02 06:41:29,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:41:29,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376127777] [2023-04-02 06:41:29,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:41:29,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:41:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:30,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:41:30,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:30,091 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 06:41:30,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:41:30,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376127777] [2023-04-02 06:41:30,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376127777] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:41:30,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:41:30,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:41:30,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565392608] [2023-04-02 06:41:30,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:41:30,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:41:30,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:41:30,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:41:30,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:41:30,092 INFO L87 Difference]: Start difference. First operand 912 states and 1213 transitions. Second operand has 10 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 06:41:35,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:41:35,266 INFO L93 Difference]: Finished difference Result 1852 states and 2525 transitions. [2023-04-02 06:41:35,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:41:35,267 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 102 [2023-04-02 06:41:35,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:41:35,269 INFO L225 Difference]: With dead ends: 1852 [2023-04-02 06:41:35,269 INFO L226 Difference]: Without dead ends: 1682 [2023-04-02 06:41:35,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:41:35,270 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 2620 mSDsluCounter, 2262 mSDsCounter, 0 mSdLazyCounter, 3651 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2620 SdHoareTripleChecker+Valid, 3021 SdHoareTripleChecker+Invalid, 3667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-04-02 06:41:35,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2620 Valid, 3021 Invalid, 3667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 3651 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-04-02 06:41:35,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2023-04-02 06:41:35,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 912. [2023-04-02 06:41:35,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 887 states have (on average 1.3618940248027058) internal successors, (1208), 908 states have internal predecessors, (1208), 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 06:41:35,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1211 transitions. [2023-04-02 06:41:35,521 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1211 transitions. Word has length 102 [2023-04-02 06:41:35,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:41:35,521 INFO L495 AbstractCegarLoop]: Abstraction has 912 states and 1211 transitions. [2023-04-02 06:41:35,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 06:41:35,521 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1211 transitions. [2023-04-02 06:41:35,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-04-02 06:41:35,522 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:41:35,522 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:41:35,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-04-02 06:41:35,522 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:41:35,522 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:41:35,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1548902281, now seen corresponding path program 1 times [2023-04-02 06:41:35,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:41:35,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269278847] [2023-04-02 06:41:35,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:41:35,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:41:35,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:36,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:41:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:36,544 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 06:41:36,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:41:36,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269278847] [2023-04-02 06:41:36,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269278847] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:41:36,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:41:36,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:41:36,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302150318] [2023-04-02 06:41:36,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:41:36,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:41:36,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:41:36,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:41:36,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:41:36,546 INFO L87 Difference]: Start difference. First operand 912 states and 1211 transitions. Second operand has 10 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 06:41:41,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:41:41,345 INFO L93 Difference]: Finished difference Result 1788 states and 2423 transitions. [2023-04-02 06:41:41,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:41:41,345 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 102 [2023-04-02 06:41:41,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:41:41,347 INFO L225 Difference]: With dead ends: 1788 [2023-04-02 06:41:41,347 INFO L226 Difference]: Without dead ends: 1634 [2023-04-02 06:41:41,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:41:41,348 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 3067 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 3542 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3067 SdHoareTripleChecker+Valid, 3109 SdHoareTripleChecker+Invalid, 3557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:41:41,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3067 Valid, 3109 Invalid, 3557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3542 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-04-02 06:41:41,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2023-04-02 06:41:41,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 912. [2023-04-02 06:41:41,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 887 states have (on average 1.359639233370913) internal successors, (1206), 908 states have internal predecessors, (1206), 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 06:41:41,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1209 transitions. [2023-04-02 06:41:41,601 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1209 transitions. Word has length 102 [2023-04-02 06:41:41,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:41:41,601 INFO L495 AbstractCegarLoop]: Abstraction has 912 states and 1209 transitions. [2023-04-02 06:41:41,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 06:41:41,602 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1209 transitions. [2023-04-02 06:41:41,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-04-02 06:41:41,602 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:41:41,603 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:41:41,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-04-02 06:41:41,603 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:41:41,603 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:41:41,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1781938871, now seen corresponding path program 1 times [2023-04-02 06:41:41,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:41:41,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792232696] [2023-04-02 06:41:41,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:41:41,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:41:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:42,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:41:42,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:42,682 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 06:41:42,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:41:42,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792232696] [2023-04-02 06:41:42,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792232696] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:41:42,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:41:42,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:41:42,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692886493] [2023-04-02 06:41:42,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:41:42,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:41:42,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:41:42,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:41:42,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:41:42,684 INFO L87 Difference]: Start difference. First operand 912 states and 1209 transitions. Second operand has 10 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 06:41:47,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:41:47,560 INFO L93 Difference]: Finished difference Result 1784 states and 2416 transitions. [2023-04-02 06:41:47,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:41:47,561 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 102 [2023-04-02 06:41:47,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:41:47,563 INFO L225 Difference]: With dead ends: 1784 [2023-04-02 06:41:47,563 INFO L226 Difference]: Without dead ends: 1634 [2023-04-02 06:41:47,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:41:47,565 INFO L413 NwaCegarLoop]: 670 mSDtfsCounter, 3710 mSDsluCounter, 2091 mSDsCounter, 0 mSdLazyCounter, 3409 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3710 SdHoareTripleChecker+Valid, 2761 SdHoareTripleChecker+Invalid, 3426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 3409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-04-02 06:41:47,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3710 Valid, 2761 Invalid, 3426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 3409 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-04-02 06:41:47,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2023-04-02 06:41:47,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 912. [2023-04-02 06:41:47,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 887 states have (on average 1.3573844419391206) internal successors, (1204), 908 states have internal predecessors, (1204), 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 06:41:47,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1207 transitions. [2023-04-02 06:41:47,822 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1207 transitions. Word has length 102 [2023-04-02 06:41:47,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:41:47,822 INFO L495 AbstractCegarLoop]: Abstraction has 912 states and 1207 transitions. [2023-04-02 06:41:47,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 06:41:47,822 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1207 transitions. [2023-04-02 06:41:47,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-04-02 06:41:47,823 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:41:47,823 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:41:47,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-04-02 06:41:47,824 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting mainErr10ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:41:47,824 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:41:47,824 INFO L85 PathProgramCache]: Analyzing trace with hash 387687677, now seen corresponding path program 1 times [2023-04-02 06:41:47,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:41:47,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454231229] [2023-04-02 06:41:47,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:41:47,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:41:47,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:48,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:41:48,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:48,923 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 06:41:48,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:41:48,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454231229] [2023-04-02 06:41:48,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454231229] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:41:48,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:41:48,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:41:48,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724621879] [2023-04-02 06:41:48,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:41:48,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:41:48,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:41:48,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:41:48,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:41:48,925 INFO L87 Difference]: Start difference. First operand 912 states and 1207 transitions. Second operand has 10 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 06:41:54,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:41:54,311 INFO L93 Difference]: Finished difference Result 1788 states and 2419 transitions. [2023-04-02 06:41:54,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 06:41:54,312 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 102 [2023-04-02 06:41:54,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:41:54,314 INFO L225 Difference]: With dead ends: 1788 [2023-04-02 06:41:54,314 INFO L226 Difference]: Without dead ends: 1634 [2023-04-02 06:41:54,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2023-04-02 06:41:54,315 INFO L413 NwaCegarLoop]: 732 mSDtfsCounter, 2854 mSDsluCounter, 2758 mSDsCounter, 0 mSdLazyCounter, 4063 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2854 SdHoareTripleChecker+Valid, 3490 SdHoareTripleChecker+Invalid, 4077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 4063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-04-02 06:41:54,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2854 Valid, 3490 Invalid, 4077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 4063 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-04-02 06:41:54,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2023-04-02 06:41:54,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 912. [2023-04-02 06:41:54,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 887 states have (on average 1.355129650507328) internal successors, (1202), 908 states have internal predecessors, (1202), 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 06:41:54,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1205 transitions. [2023-04-02 06:41:54,573 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1205 transitions. Word has length 102 [2023-04-02 06:41:54,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:41:54,573 INFO L495 AbstractCegarLoop]: Abstraction has 912 states and 1205 transitions. [2023-04-02 06:41:54,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 06:41:54,573 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1205 transitions. [2023-04-02 06:41:54,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-04-02 06:41:54,574 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:41:54,574 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:41:54,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-04-02 06:41:54,575 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2023-04-02 06:41:54,575 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:41:54,575 INFO L85 PathProgramCache]: Analyzing trace with hash -697982377, now seen corresponding path program 1 times [2023-04-02 06:41:54,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:41:54,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903290880] [2023-04-02 06:41:54,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:41:54,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:41:54,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:55,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:41:55,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:41:55,667 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 06:41:55,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:41:55,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903290880] [2023-04-02 06:41:55,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903290880] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:41:55,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:41:55,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 06:41:55,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113260740] [2023-04-02 06:41:55,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:41:55,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 06:41:55,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:41:55,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 06:41:55,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-04-02 06:41:55,669 INFO L87 Difference]: Start difference. First operand 912 states and 1205 transitions. Second operand has 10 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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)