/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 06:16:18,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 06:16:18,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 06:16:18,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-04-02 06:16:18,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 06:16:18,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 06:16:18,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 06:16:18,320 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 06:16:18,342 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 06:16:18,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 06:16:18,342 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 06:16:18,342 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 06:16:18,343 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 06:16:18,343 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 06:16:18,344 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 06:16:18,344 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 06:16:18,344 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 06:16:18,344 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 06:16:18,344 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 06:16:18,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 06:16:18,345 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 06:16:18,345 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 06:16:18,345 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 06:16:18,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 06:16:18,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 06:16:18,345 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 06:16:18,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 06:16:18,345 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 06:16:18,345 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 06:16:18,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 06:16:18,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 06:16:18,345 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 06:16:18,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 06:16:18,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 06:16:18,346 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 06:16:18,346 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 06:16:18,346 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 06:16:18,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 06:16:18,346 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 06:16:18,346 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 06:16:18,347 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 06:16:18,347 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 06:16:18,347 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 06:16:18,347 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 06:16:18,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 06:16:18,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 06:16:18,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 06:16:18,525 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 06:16:18,526 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 06:16:18,526 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2023-04-02 06:16:19,569 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 06:16:20,155 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 06:16:20,156 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2023-04-02 06:16:20,217 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/322e12616/9102603fd4fb453db3396ef055f7cc19/FLAG484b5f873 [2023-04-02 06:16:20,231 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/322e12616/9102603fd4fb453db3396ef055f7cc19 [2023-04-02 06:16:20,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 06:16:20,234 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 06:16:20,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 06:16:20,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 06:16:20,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 06:16:20,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 06:16:20" (1/1) ... [2023-04-02 06:16:20,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c35927e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:16:20, skipping insertion in model container [2023-04-02 06:16:20,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 06:16:20" (1/1) ... [2023-04-02 06:16:20,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 06:16:20,523 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 06:16:21,088 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[93880,93893] [2023-04-02 06:16:21,148 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[127977,127990] [2023-04-02 06:16:21,288 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[184673,184686] [2023-04-02 06:16:21,332 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[220032,220045] [2023-04-02 06:16:21,345 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[229801,229814] [2023-04-02 06:16:21,349 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[232051,232064] [2023-04-02 06:16:21,376 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[249702,249715] [2023-04-02 06:16:21,387 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[257723,257736] [2023-04-02 06:16:21,427 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[288453,288466] [2023-04-02 06:16:21,464 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[318193,318206] [2023-04-02 06:16:21,575 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[406252,406265] [2023-04-02 06:16:21,600 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[425331,425344] [2023-04-02 06:16:21,626 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[445911,445924] [2023-04-02 06:16:21,635 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[453486,453499] [2023-04-02 06:16:21,641 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[457284,457297] [2023-04-02 06:16:21,660 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[472883,472896] [2023-04-02 06:16:21,679 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[488771,488784] [2023-04-02 06:16:21,720 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[523323,523336] [2023-04-02 06:16:21,827 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[617972,617985] [2023-04-02 06:16:21,963 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 06:16:21,980 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 06:16:22,198 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[93880,93893] [2023-04-02 06:16:22,272 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[127977,127990] [2023-04-02 06:16:22,329 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[184673,184686] [2023-04-02 06:16:22,366 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[220032,220045] [2023-04-02 06:16:22,377 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[229801,229814] [2023-04-02 06:16:22,380 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[232051,232064] [2023-04-02 06:16:22,400 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[249702,249715] [2023-04-02 06:16:22,410 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[257723,257736] [2023-04-02 06:16:22,446 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[288453,288466] [2023-04-02 06:16:22,481 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[318193,318206] [2023-04-02 06:16:22,581 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[406252,406265] [2023-04-02 06:16:22,604 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[425331,425344] [2023-04-02 06:16:22,626 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[445911,445924] [2023-04-02 06:16:22,634 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[453486,453499] [2023-04-02 06:16:22,639 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[457284,457297] [2023-04-02 06:16:22,654 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[472883,472896] [2023-04-02 06:16:22,671 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[488771,488784] [2023-04-02 06:16:22,734 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[523323,523336] [2023-04-02 06:16:22,833 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[617972,617985] [2023-04-02 06:16:22,946 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 06:16:22,978 INFO L208 MainTranslator]: Completed translation [2023-04-02 06:16:22,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:16:22 WrapperNode [2023-04-02 06:16:22,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 06:16:22,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 06:16:22,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 06:16:22,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 06:16:22,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:16:22" (1/1) ... [2023-04-02 06:16:22,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:16:22" (1/1) ... [2023-04-02 06:16:23,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:16:22" (1/1) ... [2023-04-02 06:16:23,093 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:16:22" (1/1) ... [2023-04-02 06:16:23,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:16:22" (1/1) ... [2023-04-02 06:16:23,283 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:16:22" (1/1) ... [2023-04-02 06:16:23,314 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:16:22" (1/1) ... [2023-04-02 06:16:23,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:16:22" (1/1) ... [2023-04-02 06:16:23,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 06:16:23,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 06:16:23,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 06:16:23,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 06:16:23,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:16:22" (1/1) ... [2023-04-02 06:16:23,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 06:16:23,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 06:16:23,458 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 06:16:23,604 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 06:16:23,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 06:16:23,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 06:16:23,614 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 06:16:23,614 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 06:16:23,614 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 06:16:23,614 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 06:16:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 06:16:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 06:16:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 06:16:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 06:16:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 06:16:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 06:16:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 06:16:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 06:16:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 06:16:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 06:16:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 06:16:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 06:16:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-04-02 06:16:23,617 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-04-02 06:16:23,617 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 06:16:23,617 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 06:16:23,617 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 06:16:23,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 06:16:23,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 06:16:23,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 06:16:23,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 06:16:23,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 06:16:23,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 06:16:24,151 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 06:16:24,152 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 06:16:32,033 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 06:16:32,066 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 06:16:32,066 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-02 06:16:32,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 06:16:32 BoogieIcfgContainer [2023-04-02 06:16:32,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 06:16:32,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 06:16:32,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 06:16:32,078 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 06:16:32,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 06:16:20" (1/3) ... [2023-04-02 06:16:32,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1054160d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 06:16:32, skipping insertion in model container [2023-04-02 06:16:32,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:16:22" (2/3) ... [2023-04-02 06:16:32,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1054160d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 06:16:32, skipping insertion in model container [2023-04-02 06:16:32,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 06:16:32" (3/3) ... [2023-04-02 06:16:32,081 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2023-04-02 06:16:32,094 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 06:16:32,094 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2023-04-02 06:16:32,301 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 06:16:32,306 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;@30d2b07e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 06:16:32,306 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2023-04-02 06:16:32,322 INFO L276 IsEmpty]: Start isEmpty. Operand has 6351 states, 6327 states have (on average 1.7757230915125652) internal successors, (11235), 6346 states have internal predecessors, (11235), 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 06:16:32,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-04-02 06:16:32,363 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:16:32,363 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] [2023-04-02 06:16:32,364 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2023-04-02 06:16:32,379 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:16:32,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1548843464, now seen corresponding path program 1 times [2023-04-02 06:16:32,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:16:32,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265736402] [2023-04-02 06:16:32,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:16:32,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:16:33,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:16:43,910 WARN L223 SmtUtils]: Spent 10.19s on a formula simplification that was a NOOP. DAG size: 1783 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-04-02 06:16:43,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:16:43,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:16:44,091 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 06:16:44,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:16:44,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265736402] [2023-04-02 06:16:44,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265736402] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:16:44,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:16:44,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:16:44,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066427702] [2023-04-02 06:16:44,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:16:44,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:16:44,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:16:44,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:16:44,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:16:44,156 INFO L87 Difference]: Start difference. First operand has 6351 states, 6327 states have (on average 1.7757230915125652) internal successors, (11235), 6346 states have internal predecessors, (11235), 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 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:16:52,028 WARN L223 SmtUtils]: Spent 7.53s on a formula simplification that was a NOOP. DAG size: 1789 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-04-02 06:18:26,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:18:26,268 INFO L93 Difference]: Finished difference Result 9417 states and 16419 transitions. [2023-04-02 06:18:26,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:18:26,271 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (2), 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 82 [2023-04-02 06:18:26,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:18:26,305 INFO L225 Difference]: With dead ends: 9417 [2023-04-02 06:18:26,305 INFO L226 Difference]: Without dead ends: 5988 [2023-04-02 06:18:26,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 17.9s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:18:26,322 INFO L413 NwaCegarLoop]: 4934 mSDtfsCounter, 29412 mSDsluCounter, 1036 mSDsCounter, 0 mSdLazyCounter, 13450 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 89.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29412 SdHoareTripleChecker+Valid, 5970 SdHoareTripleChecker+Invalid, 13520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 13450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 93.5s IncrementalHoareTripleChecker+Time [2023-04-02 06:18:26,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29412 Valid, 5970 Invalid, 13520 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [70 Valid, 13450 Invalid, 0 Unknown, 0 Unchecked, 93.5s Time] [2023-04-02 06:18:26,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5988 states. [2023-04-02 06:18:26,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5988 to 5955. [2023-04-02 06:18:26,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5955 states, 5933 states have (on average 1.2954660374178324) internal successors, (7686), 5951 states have internal predecessors, (7686), 2 states have call successors, (2), 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 06:18:26,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5955 states to 5955 states and 7689 transitions. [2023-04-02 06:18:26,560 INFO L78 Accepts]: Start accepts. Automaton has 5955 states and 7689 transitions. Word has length 82 [2023-04-02 06:18:26,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:18:26,564 INFO L495 AbstractCegarLoop]: Abstraction has 5955 states and 7689 transitions. [2023-04-02 06:18:26,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (2), 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 06:18:26,564 INFO L276 IsEmpty]: Start isEmpty. Operand 5955 states and 7689 transitions. [2023-04-02 06:18:26,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-04-02 06:18:26,578 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:18:26,578 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:18:26,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 06:18:26,579 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2023-04-02 06:18:26,579 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:18:26,579 INFO L85 PathProgramCache]: Analyzing trace with hash -222185879, now seen corresponding path program 1 times [2023-04-02 06:18:26,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:18:26,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773510624] [2023-04-02 06:18:26,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:18:26,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:18:26,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:18:33,547 WARN L223 SmtUtils]: Spent 6.34s on a formula simplification that was a NOOP. DAG size: 1783 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-04-02 06:18:33,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:18:33,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:18:33,745 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 06:18:33,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:18:33,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773510624] [2023-04-02 06:18:33,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773510624] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:18:33,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:18:33,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:18:33,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501949874] [2023-04-02 06:18:33,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:18:33,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:18:33,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:18:33,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:18:33,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:18:33,748 INFO L87 Difference]: Start difference. First operand 5955 states and 7689 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:18:39,035 WARN L223 SmtUtils]: Spent 5.07s on a formula simplification that was a NOOP. DAG size: 1789 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-04-02 06:19:34,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:19:34,660 INFO L93 Difference]: Finished difference Result 9850 states and 12684 transitions. [2023-04-02 06:19:34,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:19:34,661 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2023-04-02 06:19:34,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:19:34,681 INFO L225 Difference]: With dead ends: 9850 [2023-04-02 06:19:34,681 INFO L226 Difference]: Without dead ends: 6286 [2023-04-02 06:19:34,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:19:34,689 INFO L413 NwaCegarLoop]: 2518 mSDtfsCounter, 17937 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 8389 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17937 SdHoareTripleChecker+Valid, 3302 SdHoareTripleChecker+Invalid, 8436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 8389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.2s IncrementalHoareTripleChecker+Time [2023-04-02 06:19:34,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17937 Valid, 3302 Invalid, 8436 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [47 Valid, 8389 Invalid, 0 Unknown, 0 Unchecked, 55.2s Time] [2023-04-02 06:19:34,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6286 states. [2023-04-02 06:19:34,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6286 to 6255. [2023-04-02 06:19:34,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6255 states, 6233 states have (on average 1.2976094978341088) internal successors, (8088), 6251 states have internal predecessors, (8088), 2 states have call successors, (2), 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 06:19:34,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6255 states to 6255 states and 8091 transitions. [2023-04-02 06:19:34,915 INFO L78 Accepts]: Start accepts. Automaton has 6255 states and 8091 transitions. Word has length 83 [2023-04-02 06:19:34,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:19:34,916 INFO L495 AbstractCegarLoop]: Abstraction has 6255 states and 8091 transitions. [2023-04-02 06:19:34,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:19:34,917 INFO L276 IsEmpty]: Start isEmpty. Operand 6255 states and 8091 transitions. [2023-04-02 06:19:34,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-04-02 06:19:34,927 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:19:34,927 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:19:34,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 06:19:34,927 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr18ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2023-04-02 06:19:34,928 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:19:34,928 INFO L85 PathProgramCache]: Analyzing trace with hash 2062977936, now seen corresponding path program 1 times [2023-04-02 06:19:34,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:19:34,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56547150] [2023-04-02 06:19:34,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:19:34,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:19:35,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:19:42,174 WARN L223 SmtUtils]: Spent 6.71s on a formula simplification that was a NOOP. DAG size: 1783 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-04-02 06:19:42,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:19:42,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:19:42,295 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 06:19:42,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:19:42,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56547150] [2023-04-02 06:19:42,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56547150] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:19:42,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:19:42,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:19:42,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318032996] [2023-04-02 06:19:42,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:19:42,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:19:42,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:19:42,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:19:42,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:19:42,297 INFO L87 Difference]: Start difference. First operand 6255 states and 8091 transitions. Second operand has 6 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:19:47,966 WARN L223 SmtUtils]: Spent 5.50s on a formula simplification that was a NOOP. DAG size: 1789 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-04-02 06:20:41,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:20:41,649 INFO L93 Difference]: Finished difference Result 12109 states and 15680 transitions. [2023-04-02 06:20:41,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 06:20:41,650 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2023-04-02 06:20:41,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:20:41,694 INFO L225 Difference]: With dead ends: 12109 [2023-04-02 06:20:41,694 INFO L226 Difference]: Without dead ends: 8235 [2023-04-02 06:20:41,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 06:20:41,706 INFO L413 NwaCegarLoop]: 2395 mSDtfsCounter, 17039 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 8192 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17039 SdHoareTripleChecker+Valid, 3134 SdHoareTripleChecker+Invalid, 8329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 8192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.2s IncrementalHoareTripleChecker+Time [2023-04-02 06:20:41,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17039 Valid, 3134 Invalid, 8329 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [137 Valid, 8192 Invalid, 0 Unknown, 0 Unchecked, 53.2s Time] [2023-04-02 06:20:41,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8235 states. [2023-04-02 06:20:41,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8235 to 8201. [2023-04-02 06:20:41,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8201 states, 8179 states have (on average 1.2769287198924073) internal successors, (10444), 8197 states have internal predecessors, (10444), 2 states have call successors, (2), 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 06:20:41,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8201 states to 8201 states and 10447 transitions. [2023-04-02 06:20:41,976 INFO L78 Accepts]: Start accepts. Automaton has 8201 states and 10447 transitions. Word has length 84 [2023-04-02 06:20:41,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:20:41,976 INFO L495 AbstractCegarLoop]: Abstraction has 8201 states and 10447 transitions. [2023-04-02 06:20:41,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:20:41,976 INFO L276 IsEmpty]: Start isEmpty. Operand 8201 states and 10447 transitions. [2023-04-02 06:20:41,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-04-02 06:20:41,984 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:20:41,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 06:20:41,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 06:20:41,985 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2023-04-02 06:20:41,985 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:20:41,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1718667218, now seen corresponding path program 1 times [2023-04-02 06:20:41,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:20:41,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830830736] [2023-04-02 06:20:41,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:20:41,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:20:42,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat