/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/product-lines/email_spec7_product13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 03:48:44,301 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 03:48:44,302 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 03:48:44,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 03:48:44,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 03:48:44,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 03:48:44,329 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 03:48:44,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 03:48:44,331 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 03:48:44,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 03:48:44,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 03:48:44,333 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 03:48:44,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 03:48:44,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 03:48:44,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 03:48:44,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 03:48:44,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 03:48:44,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 03:48:44,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 03:48:44,339 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 03:48:44,340 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 03:48:44,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 03:48:44,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 03:48:44,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 03:48:44,344 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 03:48:44,344 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 03:48:44,344 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 03:48:44,345 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 03:48:44,345 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 03:48:44,346 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 03:48:44,346 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 03:48:44,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 03:48:44,347 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 03:48:44,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 03:48:44,348 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 03:48:44,348 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 03:48:44,348 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 03:48:44,349 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 03:48:44,349 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 03:48:44,349 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 03:48:44,350 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 03:48:44,351 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 03:48:44,364 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 03:48:44,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 03:48:44,364 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 03:48:44,365 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 03:48:44,365 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 03:48:44,365 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 03:48:44,365 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 03:48:44,366 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 03:48:44,366 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 03:48:44,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 03:48:44,366 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 03:48:44,366 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 03:48:44,366 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 03:48:44,366 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 03:48:44,366 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 03:48:44,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 03:48:44,367 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 03:48:44,367 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 03:48:44,367 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 03:48:44,367 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 03:48:44,367 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 03:48:44,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 03:48:44,367 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 03:48:44,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 03:48:44,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 03:48:44,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 03:48:44,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 03:48:44,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 03:48:44,368 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 03:48:44,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 03:48:44,368 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 03:48:44,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 03:48:44,368 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 03:48:44,368 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 03:48:44,368 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 03:48:44,368 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 03:48:44,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 03:48:44,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 03:48:44,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 03:48:44,518 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 03:48:44,519 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 03:48:44,520 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec7_product13.cil.c [2023-04-02 03:48:45,598 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 03:48:45,818 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 03:48:45,819 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec7_product13.cil.c [2023-04-02 03:48:45,833 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6dd05177f/d03f81de204e43fb93a3424493e08e3e/FLAG74a4d80fd [2023-04-02 03:48:45,845 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6dd05177f/d03f81de204e43fb93a3424493e08e3e [2023-04-02 03:48:45,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 03:48:45,848 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 03:48:45,851 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 03:48:45,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 03:48:45,854 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 03:48:45,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 03:48:45" (1/1) ... [2023-04-02 03:48:45,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e2de260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:48:45, skipping insertion in model container [2023-04-02 03:48:45,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 03:48:45" (1/1) ... [2023-04-02 03:48:45,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 03:48:45,922 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 03:48:46,156 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/product-lines/email_spec7_product13.cil.c[16810,16823] [2023-04-02 03:48:46,337 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 03:48:46,350 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 03:48:46,384 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/product-lines/email_spec7_product13.cil.c[16810,16823] [2023-04-02 03:48:46,436 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 03:48:46,454 WARN L667 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-04-02 03:48:46,459 INFO L208 MainTranslator]: Completed translation [2023-04-02 03:48:46,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:48:46 WrapperNode [2023-04-02 03:48:46,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 03:48:46,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 03:48:46,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 03:48:46,460 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 03:48:46,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:48:46" (1/1) ... [2023-04-02 03:48:46,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:48:46" (1/1) ... [2023-04-02 03:48:46,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:48:46" (1/1) ... [2023-04-02 03:48:46,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:48:46" (1/1) ... [2023-04-02 03:48:46,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:48:46" (1/1) ... [2023-04-02 03:48:46,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:48:46" (1/1) ... [2023-04-02 03:48:46,550 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:48:46" (1/1) ... [2023-04-02 03:48:46,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:48:46" (1/1) ... [2023-04-02 03:48:46,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 03:48:46,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 03:48:46,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 03:48:46,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 03:48:46,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:48:46" (1/1) ... [2023-04-02 03:48:46,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 03:48:46,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 03:48:46,618 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 03:48:46,641 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 03:48:46,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 03:48:46,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 03:48:46,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 03:48:46,647 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 03:48:46,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2023-04-02 03:48:46,647 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2023-04-02 03:48:46,648 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2023-04-02 03:48:46,648 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2023-04-02 03:48:46,648 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2023-04-02 03:48:46,648 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2023-04-02 03:48:46,648 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2023-04-02 03:48:46,648 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2023-04-02 03:48:46,648 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2023-04-02 03:48:46,648 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 03:48:46,649 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 03:48:46,649 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2023-04-02 03:48:46,649 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2023-04-02 03:48:46,649 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2023-04-02 03:48:46,649 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2023-04-02 03:48:46,649 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-04-02 03:48:46,649 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2023-04-02 03:48:46,649 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2023-04-02 03:48:46,649 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2023-04-02 03:48:46,649 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2023-04-02 03:48:46,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 03:48:46,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 03:48:46,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 03:48:46,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 03:48:46,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 03:48:46,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 03:48:46,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 03:48:46,650 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 03:48:46,650 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 03:48:46,651 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 03:48:46,651 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 03:48:46,651 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2023-04-02 03:48:46,651 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2023-04-02 03:48:46,651 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2023-04-02 03:48:46,651 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-04-02 03:48:46,651 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-04-02 03:48:46,651 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-04-02 03:48:46,651 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-04-02 03:48:46,651 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2023-04-02 03:48:46,651 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2023-04-02 03:48:46,651 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2023-04-02 03:48:46,652 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2023-04-02 03:48:46,652 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-04-02 03:48:46,652 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-04-02 03:48:46,652 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-04-02 03:48:46,652 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-04-02 03:48:46,652 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-04-02 03:48:46,653 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2023-04-02 03:48:46,653 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-04-02 03:48:46,653 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2023-04-02 03:48:46,653 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2023-04-02 03:48:46,653 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2023-04-02 03:48:46,654 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2023-04-02 03:48:46,654 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2023-04-02 03:48:46,654 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2023-04-02 03:48:46,654 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2023-04-02 03:48:46,654 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-04-02 03:48:46,654 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2023-04-02 03:48:46,655 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2023-04-02 03:48:46,655 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2023-04-02 03:48:46,655 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2023-04-02 03:48:46,655 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-04-02 03:48:46,655 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2023-04-02 03:48:46,655 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2023-04-02 03:48:46,655 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2023-04-02 03:48:46,655 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2023-04-02 03:48:46,655 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-04-02 03:48:46,655 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-04-02 03:48:46,656 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2023-04-02 03:48:46,656 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2023-04-02 03:48:46,656 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2023-04-02 03:48:46,656 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-04-02 03:48:46,656 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-04-02 03:48:46,656 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2023-04-02 03:48:46,656 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2023-04-02 03:48:46,656 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2023-04-02 03:48:46,656 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2023-04-02 03:48:46,656 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2023-04-02 03:48:46,656 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2023-04-02 03:48:46,656 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2023-04-02 03:48:46,657 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-04-02 03:48:46,657 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-04-02 03:48:46,657 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2023-04-02 03:48:46,657 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2023-04-02 03:48:46,657 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2023-04-02 03:48:46,657 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2023-04-02 03:48:46,657 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-04-02 03:48:46,657 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-04-02 03:48:46,658 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2023-04-02 03:48:46,658 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2023-04-02 03:48:46,658 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-04-02 03:48:46,658 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-04-02 03:48:46,658 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2023-04-02 03:48:46,658 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2023-04-02 03:48:46,658 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-04-02 03:48:46,659 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2023-04-02 03:48:46,659 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-04-02 03:48:46,659 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2023-04-02 03:48:46,659 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-04-02 03:48:46,659 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-04-02 03:48:46,659 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2023-04-02 03:48:46,659 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2023-04-02 03:48:46,659 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2023-04-02 03:48:46,660 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-04-02 03:48:46,660 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 03:48:46,660 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 03:48:46,660 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 03:48:46,660 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 03:48:46,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 03:48:46,660 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 03:48:46,660 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 03:48:46,660 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-04-02 03:48:46,660 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2023-04-02 03:48:46,661 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 03:48:46,661 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-04-02 03:48:46,661 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-04-02 03:48:46,661 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-04-02 03:48:46,661 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2023-04-02 03:48:46,661 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-04-02 03:48:46,662 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2023-04-02 03:48:46,662 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-04-02 03:48:46,662 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-04-02 03:48:46,663 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 03:48:46,663 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 03:48:46,665 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 03:48:46,669 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2023-04-02 03:48:46,669 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2023-04-02 03:48:46,669 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2023-04-02 03:48:46,669 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-04-02 03:48:46,669 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-04-02 03:48:46,669 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-04-02 03:48:46,669 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2023-04-02 03:48:46,669 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2023-04-02 03:48:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2023-04-02 03:48:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2023-04-02 03:48:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2023-04-02 03:48:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 03:48:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 03:48:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 03:48:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2023-04-02 03:48:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2023-04-02 03:48:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2023-04-02 03:48:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2023-04-02 03:48:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-04-02 03:48:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2023-04-02 03:48:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2023-04-02 03:48:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2023-04-02 03:48:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2023-04-02 03:48:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2023-04-02 03:48:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2023-04-02 03:48:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2023-04-02 03:48:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 03:48:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 03:48:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 03:48:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 03:48:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 03:48:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 03:48:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 03:48:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 03:48:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 03:48:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 03:48:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 03:48:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 03:48:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 03:48:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 03:48:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 03:48:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 03:48:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2023-04-02 03:48:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2023-04-02 03:48:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2023-04-02 03:48:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-04-02 03:48:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-04-02 03:48:46,673 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-04-02 03:48:46,673 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-04-02 03:48:46,673 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2023-04-02 03:48:46,673 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2023-04-02 03:48:46,673 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2023-04-02 03:48:46,673 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2023-04-02 03:48:46,673 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-04-02 03:48:46,674 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-04-02 03:48:46,674 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-04-02 03:48:46,674 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-04-02 03:48:46,674 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-04-02 03:48:46,674 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2023-04-02 03:48:46,674 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-04-02 03:48:46,674 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2023-04-02 03:48:46,674 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2023-04-02 03:48:46,674 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2023-04-02 03:48:46,674 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2023-04-02 03:48:46,674 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2023-04-02 03:48:46,674 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2023-04-02 03:48:46,674 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2023-04-02 03:48:46,674 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2023-04-02 03:48:46,674 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2023-04-02 03:48:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2023-04-02 03:48:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-04-02 03:48:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2023-04-02 03:48:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-04-02 03:48:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-04-02 03:48:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2023-04-02 03:48:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2023-04-02 03:48:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2023-04-02 03:48:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2023-04-02 03:48:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-04-02 03:48:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2023-04-02 03:48:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2023-04-02 03:48:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2023-04-02 03:48:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2023-04-02 03:48:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2023-04-02 03:48:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2023-04-02 03:48:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2023-04-02 03:48:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2023-04-02 03:48:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-04-02 03:48:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-04-02 03:48:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2023-04-02 03:48:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2023-04-02 03:48:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2023-04-02 03:48:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-04-02 03:48:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-04-02 03:48:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2023-04-02 03:48:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2023-04-02 03:48:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2023-04-02 03:48:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2023-04-02 03:48:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2023-04-02 03:48:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2023-04-02 03:48:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2023-04-02 03:48:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 03:48:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 03:48:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 03:48:46,961 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 03:48:46,964 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 03:48:47,804 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 03:48:47,819 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 03:48:47,819 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-04-02 03:48:47,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 03:48:47 BoogieIcfgContainer [2023-04-02 03:48:47,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 03:48:47,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 03:48:47,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 03:48:47,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 03:48:47,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 03:48:45" (1/3) ... [2023-04-02 03:48:47,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35514e82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 03:48:47, skipping insertion in model container [2023-04-02 03:48:47,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:48:46" (2/3) ... [2023-04-02 03:48:47,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35514e82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 03:48:47, skipping insertion in model container [2023-04-02 03:48:47,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 03:48:47" (3/3) ... [2023-04-02 03:48:47,831 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_product13.cil.c [2023-04-02 03:48:47,843 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 03:48:47,844 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 03:48:47,894 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 03:48:47,899 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;@714e2f6c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 03:48:47,899 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 03:48:47,905 INFO L276 IsEmpty]: Start isEmpty. Operand has 443 states, 285 states have (on average 1.4210526315789473) internal successors, (405), 291 states have internal predecessors, (405), 89 states have call successors, (89), 61 states have call predecessors, (89), 61 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2023-04-02 03:48:47,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-04-02 03:48:47,930 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:48:47,931 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:48:47,932 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:48:47,936 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:48:47,936 INFO L85 PathProgramCache]: Analyzing trace with hash -17443208, now seen corresponding path program 1 times [2023-04-02 03:48:47,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:48:47,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701092416] [2023-04-02 03:48:47,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:48:47,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:48:48,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:48,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:48:48,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:48,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:48:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:48,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:48:48,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:48,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:48:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:48,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:48:48,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:48,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:48:48,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:48,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:48:48,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:48,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:48:48,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:48,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:48:48,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:48,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:48:48,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:48,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:48:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:48,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:48:48,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:48,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:48:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:48,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 03:48:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:48,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:48:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:48,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:48:48,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:48,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:48:48,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:48,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 03:48:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:49,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:48:49,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:49,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:48:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:49,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 03:48:49,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:49,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:48:49,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:49,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-04-02 03:48:49,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:49,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-04-02 03:48:49,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:49,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-04-02 03:48:49,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:49,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 03:48:49,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:49,069 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-04-02 03:48:49,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:48:49,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701092416] [2023-04-02 03:48:49,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701092416] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:48:49,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:48:49,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 03:48:49,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622342398] [2023-04-02 03:48:49,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:48:49,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 03:48:49,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:48:49,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 03:48:49,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-04-02 03:48:49,099 INFO L87 Difference]: Start difference. First operand has 443 states, 285 states have (on average 1.4210526315789473) internal successors, (405), 291 states have internal predecessors, (405), 89 states have call successors, (89), 61 states have call predecessors, (89), 61 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) Second operand has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (37), 11 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:48:55,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:48:55,266 INFO L93 Difference]: Finished difference Result 1050 states and 1576 transitions. [2023-04-02 03:48:55,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-04-02 03:48:55,268 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (37), 11 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 150 [2023-04-02 03:48:55,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:48:55,292 INFO L225 Difference]: With dead ends: 1050 [2023-04-02 03:48:55,292 INFO L226 Difference]: Without dead ends: 709 [2023-04-02 03:48:55,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 478 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=419, Invalid=1303, Unknown=0, NotChecked=0, Total=1722 [2023-04-02 03:48:55,324 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 3097 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 1580 mSolverCounterSat, 1420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3126 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 3000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1420 IncrementalHoareTripleChecker+Valid, 1580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-04-02 03:48:55,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3126 Valid, 83 Invalid, 3000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1420 Valid, 1580 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-04-02 03:48:55,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2023-04-02 03:48:55,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 398. [2023-04-02 03:48:55,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 261 states have (on average 1.4329501915708813) internal successors, (374), 264 states have internal predecessors, (374), 80 states have call successors, (80), 60 states have call predecessors, (80), 56 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-04-02 03:48:55,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 529 transitions. [2023-04-02 03:48:55,594 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 529 transitions. Word has length 150 [2023-04-02 03:48:55,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:48:55,595 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 529 transitions. [2023-04-02 03:48:55,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (37), 11 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:48:55,595 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 529 transitions. [2023-04-02 03:48:55,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-04-02 03:48:55,598 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:48:55,598 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:48:55,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 03:48:55,598 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:48:55,599 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:48:55,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1597413195, now seen corresponding path program 1 times [2023-04-02 03:48:55,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:48:55,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101446487] [2023-04-02 03:48:55,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:48:55,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:48:55,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:56,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:48:56,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:56,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:48:56,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:56,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:48:56,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:56,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:48:56,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:56,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:48:56,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:56,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:48:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:56,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:48:56,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:56,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:48:56,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:56,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:48:56,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:56,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:48:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:56,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:48:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:56,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:48:56,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:56,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:48:56,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:56,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 03:48:56,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:56,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:48:56,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:56,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:48:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:56,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:48:56,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:56,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 03:48:56,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:56,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:48:56,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:56,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:48:56,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:56,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 03:48:56,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:56,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:48:56,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:56,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 03:48:56,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:56,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-04-02 03:48:56,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:56,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-04-02 03:48:56,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:56,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-04-02 03:48:56,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:56,597 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-04-02 03:48:56,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:48:56,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101446487] [2023-04-02 03:48:56,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101446487] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 03:48:56,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960249823] [2023-04-02 03:48:56,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:48:56,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:48:56,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 03:48:56,612 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 03:48:56,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-02 03:48:56,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:56,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 1934 conjuncts, 2 conjunts are in the unsatisfiable core [2023-04-02 03:48:56,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 03:48:57,020 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-04-02 03:48:57,020 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 03:48:57,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960249823] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:48:57,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 03:48:57,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [18] total 19 [2023-04-02 03:48:57,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907179531] [2023-04-02 03:48:57,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:48:57,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 03:48:57,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:48:57,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 03:48:57,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 03:48:57,023 INFO L87 Difference]: Start difference. First operand 398 states and 529 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:48:57,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:48:57,214 INFO L93 Difference]: Finished difference Result 578 states and 752 transitions. [2023-04-02 03:48:57,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 03:48:57,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 151 [2023-04-02 03:48:57,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:48:57,216 INFO L225 Difference]: With dead ends: 578 [2023-04-02 03:48:57,216 INFO L226 Difference]: Without dead ends: 401 [2023-04-02 03:48:57,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 03:48:57,218 INFO L413 NwaCegarLoop]: 527 mSDtfsCounter, 1 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 03:48:57,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1052 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 03:48:57,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2023-04-02 03:48:57,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 400. [2023-04-02 03:48:57,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 263 states have (on average 1.429657794676806) internal successors, (376), 266 states have internal predecessors, (376), 80 states have call successors, (80), 60 states have call predecessors, (80), 56 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-04-02 03:48:57,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 531 transitions. [2023-04-02 03:48:57,409 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 531 transitions. Word has length 151 [2023-04-02 03:48:57,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:48:57,409 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 531 transitions. [2023-04-02 03:48:57,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:48:57,410 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 531 transitions. [2023-04-02 03:48:57,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-04-02 03:48:57,411 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:48:57,411 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:48:57,436 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-04-02 03:48:57,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:48:57,619 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:48:57,619 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:48:57,619 INFO L85 PathProgramCache]: Analyzing trace with hash -811223863, now seen corresponding path program 1 times [2023-04-02 03:48:57,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:48:57,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184643097] [2023-04-02 03:48:57,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:48:57,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:48:57,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:58,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:48:58,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:58,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:48:58,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:58,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:48:58,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:58,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:48:58,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:58,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:48:58,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:58,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:48:58,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:58,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:48:58,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:58,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:48:58,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:58,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:48:58,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:58,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:48:58,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:58,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:48:58,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:58,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:48:58,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:58,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:48:58,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:58,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 03:48:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:58,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:48:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:58,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:48:58,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:58,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:48:58,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:58,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 03:48:58,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:58,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:48:58,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:58,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:48:58,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:58,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-04-02 03:48:58,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:58,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:48:58,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:58,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-04-02 03:48:58,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:58,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-04-02 03:48:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:58,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-04-02 03:48:58,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:58,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-04-02 03:48:58,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:58,551 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-04-02 03:48:58,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:48:58,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184643097] [2023-04-02 03:48:58,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184643097] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 03:48:58,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367961099] [2023-04-02 03:48:58,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:48:58,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:48:58,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 03:48:58,553 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 03:48:58,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-02 03:48:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:48:58,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 1946 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 03:48:58,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 03:48:58,952 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-04-02 03:48:58,953 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 03:48:58,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367961099] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:48:58,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 03:48:58,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [18] total 19 [2023-04-02 03:48:58,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210451846] [2023-04-02 03:48:58,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:48:58,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 03:48:58,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:48:58,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 03:48:58,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 03:48:58,954 INFO L87 Difference]: Start difference. First operand 400 states and 531 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:48:59,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:48:59,169 INFO L93 Difference]: Finished difference Result 774 states and 1057 transitions. [2023-04-02 03:48:59,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 03:48:59,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 157 [2023-04-02 03:48:59,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:48:59,173 INFO L225 Difference]: With dead ends: 774 [2023-04-02 03:48:59,173 INFO L226 Difference]: Without dead ends: 439 [2023-04-02 03:48:59,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 03:48:59,176 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 51 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 03:48:59,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 1064 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 03:48:59,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2023-04-02 03:48:59,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 438. [2023-04-02 03:48:59,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 294 states have (on average 1.4557823129251701) internal successors, (428), 297 states have internal predecessors, (428), 87 states have call successors, (87), 60 states have call predecessors, (87), 56 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2023-04-02 03:48:59,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 597 transitions. [2023-04-02 03:48:59,381 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 597 transitions. Word has length 157 [2023-04-02 03:48:59,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:48:59,382 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 597 transitions. [2023-04-02 03:48:59,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:48:59,382 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 597 transitions. [2023-04-02 03:48:59,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-04-02 03:48:59,384 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:48:59,384 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:48:59,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-02 03:48:59,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-04-02 03:48:59,603 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:48:59,603 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:48:59,603 INFO L85 PathProgramCache]: Analyzing trace with hash -147013682, now seen corresponding path program 1 times [2023-04-02 03:48:59,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:48:59,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343283535] [2023-04-02 03:48:59,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:48:59,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:48:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:00,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:49:00,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:00,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:49:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:00,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:49:00,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:00,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:49:00,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:00,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:49:00,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:00,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:00,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:00,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:00,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:00,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:00,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:49:00,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:00,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:49:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:00,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:00,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:00,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:00,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:00,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:49:00,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:00,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 03:49:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:00,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:00,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:00,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:49:00,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:00,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 03:49:00,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:00,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:00,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:49:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:00,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-04-02 03:49:00,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:00,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:00,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:00,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-02 03:49:00,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:00,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-04-02 03:49:00,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:00,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-04-02 03:49:00,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:00,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-04-02 03:49:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:00,410 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-04-02 03:49:00,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:49:00,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343283535] [2023-04-02 03:49:00,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343283535] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 03:49:00,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856536077] [2023-04-02 03:49:00,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:49:00,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:49:00,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 03:49:00,415 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 03:49:00,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-02 03:49:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:00,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 1951 conjuncts, 8 conjunts are in the unsatisfiable core [2023-04-02 03:49:00,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 03:49:00,957 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-02 03:49:00,957 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 03:49:00,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856536077] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:49:00,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 03:49:00,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [18] total 24 [2023-04-02 03:49:00,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632330138] [2023-04-02 03:49:00,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:49:00,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 03:49:00,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:49:00,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 03:49:00,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2023-04-02 03:49:00,959 INFO L87 Difference]: Start difference. First operand 438 states and 597 transitions. Second operand has 9 states, 7 states have (on average 13.0) internal successors, (91), 9 states have internal predecessors, (91), 6 states have call successors, (37), 3 states have call predecessors, (37), 6 states have return successors, (26), 4 states have call predecessors, (26), 6 states have call successors, (26) [2023-04-02 03:49:01,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:49:01,645 INFO L93 Difference]: Finished difference Result 854 states and 1174 transitions. [2023-04-02 03:49:01,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 03:49:01,646 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 13.0) internal successors, (91), 9 states have internal predecessors, (91), 6 states have call successors, (37), 3 states have call predecessors, (37), 6 states have return successors, (26), 4 states have call predecessors, (26), 6 states have call successors, (26) Word has length 158 [2023-04-02 03:49:01,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:49:01,648 INFO L225 Difference]: With dead ends: 854 [2023-04-02 03:49:01,648 INFO L226 Difference]: Without dead ends: 452 [2023-04-02 03:49:01,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=81, Invalid=621, Unknown=0, NotChecked=0, Total=702 [2023-04-02 03:49:01,649 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 485 mSDsluCounter, 2287 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 2821 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 03:49:01,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 2821 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 03:49:01,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2023-04-02 03:49:01,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 452. [2023-04-02 03:49:01,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 305 states have (on average 1.459016393442623) internal successors, (445), 309 states have internal predecessors, (445), 87 states have call successors, (87), 62 states have call predecessors, (87), 59 states have return successors, (83), 82 states have call predecessors, (83), 82 states have call successors, (83) [2023-04-02 03:49:01,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 615 transitions. [2023-04-02 03:49:01,839 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 615 transitions. Word has length 158 [2023-04-02 03:49:01,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:49:01,840 INFO L495 AbstractCegarLoop]: Abstraction has 452 states and 615 transitions. [2023-04-02 03:49:01,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 13.0) internal successors, (91), 9 states have internal predecessors, (91), 6 states have call successors, (37), 3 states have call predecessors, (37), 6 states have return successors, (26), 4 states have call predecessors, (26), 6 states have call successors, (26) [2023-04-02 03:49:01,840 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 615 transitions. [2023-04-02 03:49:01,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-04-02 03:49:01,841 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:49:01,842 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:49:01,858 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-04-02 03:49:02,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:49:02,049 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:49:02,049 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:49:02,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1296070511, now seen corresponding path program 1 times [2023-04-02 03:49:02,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:49:02,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272957698] [2023-04-02 03:49:02,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:49:02,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:49:02,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:02,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:49:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:02,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:49:02,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:02,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:49:02,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:02,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:49:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:02,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:49:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:02,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:02,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:02,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:02,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:02,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:02,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:02,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:49:02,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:02,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:49:02,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:02,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:02,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:02,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:02,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:02,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:49:02,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:02,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 03:49:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:02,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:02,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:02,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:49:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:02,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 03:49:02,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:02,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:02,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:02,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:49:02,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:02,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-04-02 03:49:02,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:02,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:02,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:02,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-04-02 03:49:02,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:02,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-04-02 03:49:02,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:02,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-04-02 03:49:02,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:02,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-04-02 03:49:02,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:02,859 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-02 03:49:02,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:49:02,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272957698] [2023-04-02 03:49:02,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272957698] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 03:49:02,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073411801] [2023-04-02 03:49:02,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:49:02,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:49:02,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 03:49:02,861 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 03:49:02,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-02 03:49:03,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:03,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 1952 conjuncts, 6 conjunts are in the unsatisfiable core [2023-04-02 03:49:03,211 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 03:49:03,327 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-02 03:49:03,327 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 03:49:03,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073411801] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:49:03,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 03:49:03,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19] total 23 [2023-04-02 03:49:03,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706532255] [2023-04-02 03:49:03,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:49:03,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 03:49:03,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:49:03,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 03:49:03,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2023-04-02 03:49:03,329 INFO L87 Difference]: Start difference. First operand 452 states and 615 transitions. Second operand has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 7 states have internal predecessors, (92), 4 states have call successors, (37), 3 states have call predecessors, (37), 5 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2023-04-02 03:49:03,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:49:03,839 INFO L93 Difference]: Finished difference Result 855 states and 1178 transitions. [2023-04-02 03:49:03,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 03:49:03,839 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 7 states have internal predecessors, (92), 4 states have call successors, (37), 3 states have call predecessors, (37), 5 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) Word has length 159 [2023-04-02 03:49:03,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:49:03,841 INFO L225 Difference]: With dead ends: 855 [2023-04-02 03:49:03,841 INFO L226 Difference]: Without dead ends: 454 [2023-04-02 03:49:03,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2023-04-02 03:49:03,842 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 485 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 2080 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 03:49:03,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 2080 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 03:49:03,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2023-04-02 03:49:04,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 454. [2023-04-02 03:49:04,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 306 states have (on average 1.457516339869281) internal successors, (446), 311 states have internal predecessors, (446), 87 states have call successors, (87), 62 states have call predecessors, (87), 60 states have return successors, (85), 82 states have call predecessors, (85), 82 states have call successors, (85) [2023-04-02 03:49:04,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 618 transitions. [2023-04-02 03:49:04,035 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 618 transitions. Word has length 159 [2023-04-02 03:49:04,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:49:04,035 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 618 transitions. [2023-04-02 03:49:04,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 7 states have internal predecessors, (92), 4 states have call successors, (37), 3 states have call predecessors, (37), 5 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2023-04-02 03:49:04,035 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 618 transitions. [2023-04-02 03:49:04,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-04-02 03:49:04,038 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:49:04,038 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:49:04,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-04-02 03:49:04,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:49:04,246 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:49:04,247 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:49:04,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1251397059, now seen corresponding path program 1 times [2023-04-02 03:49:04,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:49:04,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470256733] [2023-04-02 03:49:04,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:49:04,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:49:04,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:04,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:49:04,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:04,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:49:04,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:04,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:49:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:04,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:49:04,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:04,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:49:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:04,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:04,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:04,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:04,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:04,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:04,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:04,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:49:04,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:04,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:49:04,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:04,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:04,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:04,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:04,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:04,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:49:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:04,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 03:49:04,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:04,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:04,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:04,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:04,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:05,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:49:05,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:05,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 03:49:05,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:05,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:05,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:05,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:49:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:05,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-04-02 03:49:05,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:05,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:05,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:05,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 03:49:05,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:05,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 03:49:05,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:05,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 03:49:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:05,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-04-02 03:49:05,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:05,076 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-04-02 03:49:05,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:49:05,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470256733] [2023-04-02 03:49:05,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470256733] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:49:05,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:49:05,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-04-02 03:49:05,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202053999] [2023-04-02 03:49:05,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:49:05,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-04-02 03:49:05,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:49:05,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-04-02 03:49:05,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2023-04-02 03:49:05,078 INFO L87 Difference]: Start difference. First operand 454 states and 618 transitions. Second operand has 18 states, 15 states have (on average 5.733333333333333) internal successors, (86), 9 states have internal predecessors, (86), 6 states have call successors, (37), 11 states have call predecessors, (37), 5 states have return successors, (26), 4 states have call predecessors, (26), 6 states have call successors, (26) [2023-04-02 03:49:15,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:49:15,129 INFO L93 Difference]: Finished difference Result 1256 states and 1849 transitions. [2023-04-02 03:49:15,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-04-02 03:49:15,129 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 5.733333333333333) internal successors, (86), 9 states have internal predecessors, (86), 6 states have call successors, (37), 11 states have call predecessors, (37), 5 states have return successors, (26), 4 states have call predecessors, (26), 6 states have call successors, (26) Word has length 160 [2023-04-02 03:49:15,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:49:15,159 INFO L225 Difference]: With dead ends: 1256 [2023-04-02 03:49:15,159 INFO L226 Difference]: Without dead ends: 861 [2023-04-02 03:49:15,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 516 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=520, Invalid=1930, Unknown=0, NotChecked=0, Total=2450 [2023-04-02 03:49:15,161 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 1750 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 6426 mSolverCounterSat, 788 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1753 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 7214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 788 IncrementalHoareTripleChecker+Valid, 6426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2023-04-02 03:49:15,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1753 Valid, 81 Invalid, 7214 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [788 Valid, 6426 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2023-04-02 03:49:15,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2023-04-02 03:49:15,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 464. [2023-04-02 03:49:15,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 315 states have (on average 1.453968253968254) internal successors, (458), 319 states have internal predecessors, (458), 87 states have call successors, (87), 64 states have call predecessors, (87), 61 states have return successors, (84), 82 states have call predecessors, (84), 82 states have call successors, (84) [2023-04-02 03:49:15,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 629 transitions. [2023-04-02 03:49:15,406 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 629 transitions. Word has length 160 [2023-04-02 03:49:15,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:49:15,407 INFO L495 AbstractCegarLoop]: Abstraction has 464 states and 629 transitions. [2023-04-02 03:49:15,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 5.733333333333333) internal successors, (86), 9 states have internal predecessors, (86), 6 states have call successors, (37), 11 states have call predecessors, (37), 5 states have return successors, (26), 4 states have call predecessors, (26), 6 states have call successors, (26) [2023-04-02 03:49:15,407 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 629 transitions. [2023-04-02 03:49:15,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-04-02 03:49:15,408 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:49:15,409 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:49:15,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 03:49:15,409 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:49:15,409 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:49:15,409 INFO L85 PathProgramCache]: Analyzing trace with hash 226071968, now seen corresponding path program 2 times [2023-04-02 03:49:15,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:49:15,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326842609] [2023-04-02 03:49:15,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:49:15,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:49:15,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:15,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:49:15,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:15,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:49:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:15,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:49:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:15,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:49:15,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:15,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:49:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:16,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:16,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:16,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:16,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:16,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:16,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:16,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:49:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:16,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:49:16,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:16,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:16,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:16,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:16,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:49:16,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:16,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 03:49:16,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:16,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:16,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:16,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:16,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:49:16,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:16,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-04-02 03:49:16,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:16,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:16,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:16,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:49:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:16,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 03:49:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:16,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:16,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:16,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-04-02 03:49:16,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:16,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-04-02 03:49:16,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:16,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-04-02 03:49:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:16,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-04-02 03:49:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:16,230 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-02 03:49:16,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:49:16,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326842609] [2023-04-02 03:49:16,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326842609] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:49:16,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:49:16,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 03:49:16,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610560561] [2023-04-02 03:49:16,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:49:16,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 03:49:16,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:49:16,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 03:49:16,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 03:49:16,232 INFO L87 Difference]: Start difference. First operand 464 states and 629 transitions. Second operand has 19 states, 16 states have (on average 5.625) internal successors, (90), 9 states have internal predecessors, (90), 5 states have call successors, (37), 11 states have call predecessors, (37), 5 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) [2023-04-02 03:49:26,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:49:26,231 INFO L93 Difference]: Finished difference Result 1258 states and 1854 transitions. [2023-04-02 03:49:26,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-04-02 03:49:26,232 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 5.625) internal successors, (90), 9 states have internal predecessors, (90), 5 states have call successors, (37), 11 states have call predecessors, (37), 5 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) Word has length 161 [2023-04-02 03:49:26,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:49:26,235 INFO L225 Difference]: With dead ends: 1258 [2023-04-02 03:49:26,235 INFO L226 Difference]: Without dead ends: 874 [2023-04-02 03:49:26,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=549, Invalid=2207, Unknown=0, NotChecked=0, Total=2756 [2023-04-02 03:49:26,237 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 3622 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 7080 mSolverCounterSat, 1624 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3625 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 8704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1624 IncrementalHoareTripleChecker+Valid, 7080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-04-02 03:49:26,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3625 Valid, 86 Invalid, 8704 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1624 Valid, 7080 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-04-02 03:49:26,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2023-04-02 03:49:26,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 469. [2023-04-02 03:49:26,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 317 states have (on average 1.4511041009463723) internal successors, (460), 322 states have internal predecessors, (460), 88 states have call successors, (88), 64 states have call predecessors, (88), 63 states have return successors, (87), 84 states have call predecessors, (87), 83 states have call successors, (87) [2023-04-02 03:49:26,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 635 transitions. [2023-04-02 03:49:26,447 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 635 transitions. Word has length 161 [2023-04-02 03:49:26,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:49:26,447 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 635 transitions. [2023-04-02 03:49:26,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 5.625) internal successors, (90), 9 states have internal predecessors, (90), 5 states have call successors, (37), 11 states have call predecessors, (37), 5 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) [2023-04-02 03:49:26,448 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 635 transitions. [2023-04-02 03:49:26,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-04-02 03:49:26,449 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:49:26,449 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:49:26,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 03:49:26,449 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:49:26,450 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:49:26,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1872307938, now seen corresponding path program 3 times [2023-04-02 03:49:26,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:49:26,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609702906] [2023-04-02 03:49:26,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:49:26,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:49:26,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:26,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:49:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:26,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:49:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:26,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:49:26,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:26,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:49:26,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:26,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:49:27,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:27,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:27,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:27,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:27,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:27,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:27,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:27,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:49:27,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:27,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:49:27,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:27,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:27,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:27,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:27,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:49:27,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:27,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 03:49:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:27,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:27,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:27,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:49:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:27,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 03:49:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:27,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:27,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:27,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:49:27,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:27,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-04-02 03:49:27,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:27,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:27,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:27,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-04-02 03:49:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:27,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-04-02 03:49:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:27,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 03:49:27,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:27,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-04-02 03:49:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:27,211 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-04-02 03:49:27,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:49:27,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609702906] [2023-04-02 03:49:27,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609702906] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:49:27,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:49:27,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-04-02 03:49:27,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301351674] [2023-04-02 03:49:27,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:49:27,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-04-02 03:49:27,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:49:27,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-04-02 03:49:27,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2023-04-02 03:49:27,213 INFO L87 Difference]: Start difference. First operand 469 states and 635 transitions. Second operand has 18 states, 15 states have (on average 5.8) internal successors, (87), 9 states have internal predecessors, (87), 6 states have call successors, (37), 11 states have call predecessors, (37), 5 states have return successors, (26), 4 states have call predecessors, (26), 6 states have call successors, (26) [2023-04-02 03:49:34,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:49:34,110 INFO L93 Difference]: Finished difference Result 1254 states and 1845 transitions. [2023-04-02 03:49:34,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-04-02 03:49:34,110 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 5.8) internal successors, (87), 9 states have internal predecessors, (87), 6 states have call successors, (37), 11 states have call predecessors, (37), 5 states have return successors, (26), 4 states have call predecessors, (26), 6 states have call successors, (26) Word has length 162 [2023-04-02 03:49:34,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:49:34,113 INFO L225 Difference]: With dead ends: 1254 [2023-04-02 03:49:34,113 INFO L226 Difference]: Without dead ends: 863 [2023-04-02 03:49:34,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=520, Invalid=1930, Unknown=0, NotChecked=0, Total=2450 [2023-04-02 03:49:34,115 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2816 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 6271 mSolverCounterSat, 1287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2819 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 7558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1287 IncrementalHoareTripleChecker+Valid, 6271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-04-02 03:49:34,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2819 Valid, 79 Invalid, 7558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1287 Valid, 6271 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-04-02 03:49:34,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2023-04-02 03:49:34,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 464. [2023-04-02 03:49:34,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 315 states have (on average 1.4507936507936507) internal successors, (457), 319 states have internal predecessors, (457), 87 states have call successors, (87), 64 states have call predecessors, (87), 61 states have return successors, (84), 82 states have call predecessors, (84), 82 states have call successors, (84) [2023-04-02 03:49:34,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 628 transitions. [2023-04-02 03:49:34,346 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 628 transitions. Word has length 162 [2023-04-02 03:49:34,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:49:34,346 INFO L495 AbstractCegarLoop]: Abstraction has 464 states and 628 transitions. [2023-04-02 03:49:34,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 5.8) internal successors, (87), 9 states have internal predecessors, (87), 6 states have call successors, (37), 11 states have call predecessors, (37), 5 states have return successors, (26), 4 states have call predecessors, (26), 6 states have call successors, (26) [2023-04-02 03:49:34,346 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 628 transitions. [2023-04-02 03:49:34,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-04-02 03:49:34,347 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:49:34,348 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:49:34,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 03:49:34,348 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:49:34,348 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:49:34,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1246704770, now seen corresponding path program 1 times [2023-04-02 03:49:34,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:49:34,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146524718] [2023-04-02 03:49:34,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:49:34,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:49:34,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:34,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:49:34,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:34,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:49:34,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:34,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:49:34,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:34,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:49:34,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:34,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:49:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:34,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:34,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:34,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:34,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:34,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:34,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:49:34,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:34,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:49:34,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:34,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:34,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:34,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:49:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:34,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 03:49:34,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:34,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:34,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:34,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:34,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:34,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:49:34,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:34,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 03:49:34,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:34,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:34,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:34,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:49:34,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:34,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-04-02 03:49:34,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:34,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:34,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:34,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-04-02 03:49:34,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:34,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-04-02 03:49:34,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:34,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 03:49:34,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:34,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-04-02 03:49:34,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:34,979 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-02 03:49:34,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:49:34,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146524718] [2023-04-02 03:49:34,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146524718] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:49:34,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:49:34,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 03:49:34,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947423295] [2023-04-02 03:49:34,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:49:34,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 03:49:34,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:49:34,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 03:49:34,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 03:49:34,981 INFO L87 Difference]: Start difference. First operand 464 states and 628 transitions. Second operand has 19 states, 16 states have (on average 5.6875) internal successors, (91), 9 states have internal predecessors, (91), 5 states have call successors, (37), 11 states have call predecessors, (37), 5 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) [2023-04-02 03:49:45,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:49:45,386 INFO L93 Difference]: Finished difference Result 1249 states and 1835 transitions. [2023-04-02 03:49:45,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-04-02 03:49:45,387 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 5.6875) internal successors, (91), 9 states have internal predecessors, (91), 5 states have call successors, (37), 11 states have call predecessors, (37), 5 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) Word has length 162 [2023-04-02 03:49:45,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:49:45,390 INFO L225 Difference]: With dead ends: 1249 [2023-04-02 03:49:45,390 INFO L226 Difference]: Without dead ends: 865 [2023-04-02 03:49:45,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=518, Invalid=2032, Unknown=0, NotChecked=0, Total=2550 [2023-04-02 03:49:45,392 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2037 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 7259 mSolverCounterSat, 942 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2040 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 8201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 942 IncrementalHoareTripleChecker+Valid, 7259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-04-02 03:49:45,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2040 Valid, 88 Invalid, 8201 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [942 Valid, 7259 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-04-02 03:49:45,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2023-04-02 03:49:45,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 469. [2023-04-02 03:49:45,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 317 states have (on average 1.4479495268138802) internal successors, (459), 322 states have internal predecessors, (459), 88 states have call successors, (88), 64 states have call predecessors, (88), 63 states have return successors, (87), 84 states have call predecessors, (87), 83 states have call successors, (87) [2023-04-02 03:49:45,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 634 transitions. [2023-04-02 03:49:45,620 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 634 transitions. Word has length 162 [2023-04-02 03:49:45,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:49:45,620 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 634 transitions. [2023-04-02 03:49:45,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 5.6875) internal successors, (91), 9 states have internal predecessors, (91), 5 states have call successors, (37), 11 states have call predecessors, (37), 5 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) [2023-04-02 03:49:45,620 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 634 transitions. [2023-04-02 03:49:45,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-04-02 03:49:45,621 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:49:45,622 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:49:45,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 03:49:45,622 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:49:45,622 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:49:45,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1429287612, now seen corresponding path program 1 times [2023-04-02 03:49:45,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:49:45,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139943956] [2023-04-02 03:49:45,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:49:45,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:49:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:46,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:49:46,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:46,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:49:46,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:46,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:49:46,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:46,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:49:46,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:46,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:49:46,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:46,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:46,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:46,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:46,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:46,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:46,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:49:46,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:46,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:49:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:46,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:46,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:46,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:46,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:49:46,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:46,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 03:49:46,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:46,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:46,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:46,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:46,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:49:46,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:46,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 03:49:46,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:46,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:46,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:49:46,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:46,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-04-02 03:49:46,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:46,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:46,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:46,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-04-02 03:49:46,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:46,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-04-02 03:49:46,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:46,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 03:49:46,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:46,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-04-02 03:49:46,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:46,405 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-02 03:49:46,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:49:46,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139943956] [2023-04-02 03:49:46,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139943956] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:49:46,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:49:46,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 03:49:46,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616741723] [2023-04-02 03:49:46,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:49:46,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 03:49:46,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:49:46,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 03:49:46,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 03:49:46,408 INFO L87 Difference]: Start difference. First operand 469 states and 634 transitions. Second operand has 19 states, 16 states have (on average 5.6875) internal successors, (91), 9 states have internal predecessors, (91), 5 states have call successors, (37), 11 states have call predecessors, (37), 5 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) [2023-04-02 03:49:56,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:49:56,366 INFO L93 Difference]: Finished difference Result 1247 states and 1832 transitions. [2023-04-02 03:49:56,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-04-02 03:49:56,367 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 5.6875) internal successors, (91), 9 states have internal predecessors, (91), 5 states have call successors, (37), 11 states have call predecessors, (37), 5 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) Word has length 162 [2023-04-02 03:49:56,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:49:56,370 INFO L225 Difference]: With dead ends: 1247 [2023-04-02 03:49:56,371 INFO L226 Difference]: Without dead ends: 863 [2023-04-02 03:49:56,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 721 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=655, Invalid=2425, Unknown=0, NotChecked=0, Total=3080 [2023-04-02 03:49:56,372 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 1740 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 6991 mSolverCounterSat, 786 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1743 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 7777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 786 IncrementalHoareTripleChecker+Valid, 6991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-04-02 03:49:56,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1743 Valid, 90 Invalid, 7777 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [786 Valid, 6991 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-04-02 03:49:56,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2023-04-02 03:49:56,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 464. [2023-04-02 03:49:56,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 315 states have (on average 1.4507936507936507) internal successors, (457), 319 states have internal predecessors, (457), 87 states have call successors, (87), 64 states have call predecessors, (87), 61 states have return successors, (83), 82 states have call predecessors, (83), 82 states have call successors, (83) [2023-04-02 03:49:56,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 627 transitions. [2023-04-02 03:49:56,642 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 627 transitions. Word has length 162 [2023-04-02 03:49:56,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:49:56,643 INFO L495 AbstractCegarLoop]: Abstraction has 464 states and 627 transitions. [2023-04-02 03:49:56,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 5.6875) internal successors, (91), 9 states have internal predecessors, (91), 5 states have call successors, (37), 11 states have call predecessors, (37), 5 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) [2023-04-02 03:49:56,643 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 627 transitions. [2023-04-02 03:49:56,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-04-02 03:49:56,644 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:49:56,644 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:49:56,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 03:49:56,644 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:49:56,644 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:49:56,644 INFO L85 PathProgramCache]: Analyzing trace with hash -834097980, now seen corresponding path program 2 times [2023-04-02 03:49:56,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:49:56,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942091323] [2023-04-02 03:49:56,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:49:56,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:49:56,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:57,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:49:57,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:57,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:49:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:57,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:49:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:57,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:49:57,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:57,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:49:57,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:57,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:57,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:57,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:57,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:57,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:57,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:57,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:49:57,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:57,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:49:57,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:57,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:57,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:57,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:57,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:57,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:49:57,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:57,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 03:49:57,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:57,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:57,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:57,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:57,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:49:57,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:57,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 03:49:57,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:57,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:57,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:57,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:49:57,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:57,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-04-02 03:49:57,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:57,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:49:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:57,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-04-02 03:49:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:57,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-04-02 03:49:57,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:57,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-04-02 03:49:57,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:57,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-04-02 03:49:57,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:49:57,318 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-02 03:49:57,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:49:57,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942091323] [2023-04-02 03:49:57,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942091323] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:49:57,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:49:57,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 03:49:57,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140956444] [2023-04-02 03:49:57,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:49:57,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 03:49:57,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:49:57,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 03:49:57,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 03:49:57,320 INFO L87 Difference]: Start difference. First operand 464 states and 627 transitions. Second operand has 19 states, 16 states have (on average 5.75) internal successors, (92), 9 states have internal predecessors, (92), 5 states have call successors, (37), 11 states have call predecessors, (37), 5 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) [2023-04-02 03:50:07,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:50:07,533 INFO L93 Difference]: Finished difference Result 1253 states and 1841 transitions. [2023-04-02 03:50:07,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-04-02 03:50:07,534 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 5.75) internal successors, (92), 9 states have internal predecessors, (92), 5 states have call successors, (37), 11 states have call predecessors, (37), 5 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) Word has length 163 [2023-04-02 03:50:07,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:50:07,539 INFO L225 Difference]: With dead ends: 1253 [2023-04-02 03:50:07,539 INFO L226 Difference]: Without dead ends: 869 [2023-04-02 03:50:07,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=518, Invalid=2032, Unknown=0, NotChecked=0, Total=2550 [2023-04-02 03:50:07,541 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2456 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 7298 mSolverCounterSat, 1094 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2459 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 8392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1094 IncrementalHoareTripleChecker+Valid, 7298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-04-02 03:50:07,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2459 Valid, 86 Invalid, 8392 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1094 Valid, 7298 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-04-02 03:50:07,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2023-04-02 03:50:07,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 471. [2023-04-02 03:50:07,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 318 states have (on average 1.4465408805031446) internal successors, (460), 324 states have internal predecessors, (460), 88 states have call successors, (88), 64 states have call predecessors, (88), 64 states have return successors, (89), 84 states have call predecessors, (89), 83 states have call successors, (89) [2023-04-02 03:50:07,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 637 transitions. [2023-04-02 03:50:07,788 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 637 transitions. Word has length 163 [2023-04-02 03:50:07,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:50:07,789 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 637 transitions. [2023-04-02 03:50:07,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 5.75) internal successors, (92), 9 states have internal predecessors, (92), 5 states have call successors, (37), 11 states have call predecessors, (37), 5 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) [2023-04-02 03:50:07,789 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 637 transitions. [2023-04-02 03:50:07,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-04-02 03:50:07,791 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:50:07,791 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:50:07,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 03:50:07,791 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:50:07,792 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:50:07,792 INFO L85 PathProgramCache]: Analyzing trace with hash 517287238, now seen corresponding path program 2 times [2023-04-02 03:50:07,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:50:07,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939962524] [2023-04-02 03:50:07,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:50:07,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:50:07,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:08,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:50:08,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:08,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:50:08,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:08,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:50:08,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:08,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:50:08,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:08,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:50:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:08,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:08,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:08,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:08,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:08,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:08,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:08,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:50:08,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:08,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:50:08,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:08,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:08,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:08,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:08,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:08,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:50:08,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:08,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 03:50:08,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:08,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:08,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:08,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:08,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:50:08,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:08,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 03:50:08,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:08,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:08,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:08,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:50:08,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:08,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-04-02 03:50:08,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:08,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:08,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:08,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-04-02 03:50:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:08,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-04-02 03:50:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:08,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-04-02 03:50:08,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:08,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-04-02 03:50:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:08,559 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-02 03:50:08,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:50:08,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939962524] [2023-04-02 03:50:08,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939962524] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:50:08,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:50:08,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 03:50:08,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963829692] [2023-04-02 03:50:08,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:50:08,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 03:50:08,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:50:08,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 03:50:08,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 03:50:08,560 INFO L87 Difference]: Start difference. First operand 471 states and 637 transitions. Second operand has 19 states, 16 states have (on average 5.75) internal successors, (92), 9 states have internal predecessors, (92), 5 states have call successors, (37), 11 states have call predecessors, (37), 5 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) [2023-04-02 03:50:16,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:50:16,879 INFO L93 Difference]: Finished difference Result 1255 states and 1843 transitions. [2023-04-02 03:50:16,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-04-02 03:50:16,880 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 5.75) internal successors, (92), 9 states have internal predecessors, (92), 5 states have call successors, (37), 11 states have call predecessors, (37), 5 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) Word has length 163 [2023-04-02 03:50:16,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:50:16,882 INFO L225 Difference]: With dead ends: 1255 [2023-04-02 03:50:16,883 INFO L226 Difference]: Without dead ends: 869 [2023-04-02 03:50:16,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 719 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=655, Invalid=2425, Unknown=0, NotChecked=0, Total=3080 [2023-04-02 03:50:16,884 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 3261 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 7323 mSolverCounterSat, 1463 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3264 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 8786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1463 IncrementalHoareTripleChecker+Valid, 7323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-04-02 03:50:16,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3264 Valid, 90 Invalid, 8786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1463 Valid, 7323 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-04-02 03:50:16,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2023-04-02 03:50:17,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 466. [2023-04-02 03:50:17,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 316 states have (on average 1.4493670886075949) internal successors, (458), 321 states have internal predecessors, (458), 87 states have call successors, (87), 64 states have call predecessors, (87), 62 states have return successors, (85), 82 states have call predecessors, (85), 82 states have call successors, (85) [2023-04-02 03:50:17,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 630 transitions. [2023-04-02 03:50:17,144 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 630 transitions. Word has length 163 [2023-04-02 03:50:17,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:50:17,145 INFO L495 AbstractCegarLoop]: Abstraction has 466 states and 630 transitions. [2023-04-02 03:50:17,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 5.75) internal successors, (92), 9 states have internal predecessors, (92), 5 states have call successors, (37), 11 states have call predecessors, (37), 5 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) [2023-04-02 03:50:17,145 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 630 transitions. [2023-04-02 03:50:17,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-04-02 03:50:17,146 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:50:17,146 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:50:17,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 03:50:17,146 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:50:17,146 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:50:17,147 INFO L85 PathProgramCache]: Analyzing trace with hash -246396285, now seen corresponding path program 1 times [2023-04-02 03:50:17,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:50:17,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680466340] [2023-04-02 03:50:17,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:50:17,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:50:17,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:17,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:50:17,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:17,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:50:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:17,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:50:17,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:17,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:50:17,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:17,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:50:17,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:17,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:17,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:17,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:17,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:17,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:17,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:50:17,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:17,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:50:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:17,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:17,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:17,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:17,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:50:17,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:17,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 03:50:17,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:17,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:17,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:17,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:17,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:17,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:50:17,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:17,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 03:50:17,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:17,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:17,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:17,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:50:17,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:17,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 03:50:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:17,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:17,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:17,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-04-02 03:50:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:17,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-04-02 03:50:17,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:17,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-04-02 03:50:17,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:17,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 03:50:17,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:17,793 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-04-02 03:50:17,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:50:17,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680466340] [2023-04-02 03:50:17,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680466340] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 03:50:17,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196926174] [2023-04-02 03:50:17,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:50:17,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:50:17,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 03:50:17,798 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 03:50:17,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-04-02 03:50:18,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:18,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 1957 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 03:50:18,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 03:50:18,169 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-04-02 03:50:18,169 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 03:50:18,309 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-04-02 03:50:18,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196926174] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 03:50:18,309 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 03:50:18,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 16 [2023-04-02 03:50:18,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200333572] [2023-04-02 03:50:18,309 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 03:50:18,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 03:50:18,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:50:18,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 03:50:18,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2023-04-02 03:50:18,311 INFO L87 Difference]: Start difference. First operand 466 states and 630 transitions. Second operand has 16 states, 16 states have (on average 8.75) internal successors, (140), 7 states have internal predecessors, (140), 2 states have call successors, (65), 11 states have call predecessors, (65), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-04-02 03:50:27,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:50:27,996 INFO L93 Difference]: Finished difference Result 1543 states and 2466 transitions. [2023-04-02 03:50:27,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-04-02 03:50:27,996 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.75) internal successors, (140), 7 states have internal predecessors, (140), 2 states have call successors, (65), 11 states have call predecessors, (65), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 164 [2023-04-02 03:50:27,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:50:28,000 INFO L225 Difference]: With dead ends: 1543 [2023-04-02 03:50:28,000 INFO L226 Difference]: Without dead ends: 1366 [2023-04-02 03:50:28,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=408, Invalid=924, Unknown=0, NotChecked=0, Total=1332 [2023-04-02 03:50:28,002 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2885 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 5098 mSolverCounterSat, 988 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2910 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 6086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 988 IncrementalHoareTripleChecker+Valid, 5098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-04-02 03:50:28,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2910 Valid, 59 Invalid, 6086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [988 Valid, 5098 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-04-02 03:50:28,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2023-04-02 03:50:28,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 667. [2023-04-02 03:50:28,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 479 states have (on average 1.5156576200417538) internal successors, (726), 484 states have internal predecessors, (726), 125 states have call successors, (125), 64 states have call predecessors, (125), 62 states have return successors, (123), 120 states have call predecessors, (123), 120 states have call successors, (123) [2023-04-02 03:50:28,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 974 transitions. [2023-04-02 03:50:28,504 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 974 transitions. Word has length 164 [2023-04-02 03:50:28,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:50:28,504 INFO L495 AbstractCegarLoop]: Abstraction has 667 states and 974 transitions. [2023-04-02 03:50:28,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.75) internal successors, (140), 7 states have internal predecessors, (140), 2 states have call successors, (65), 11 states have call predecessors, (65), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-04-02 03:50:28,505 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 974 transitions. [2023-04-02 03:50:28,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-04-02 03:50:28,506 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:50:28,507 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:50:28,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-04-02 03:50:28,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-04-02 03:50:28,715 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:50:28,715 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:50:28,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1016304352, now seen corresponding path program 1 times [2023-04-02 03:50:28,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:50:28,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109710663] [2023-04-02 03:50:28,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:50:28,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:50:28,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:29,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:50:29,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:29,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:50:29,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:29,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:50:29,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:29,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:50:29,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:29,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:50:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:29,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:29,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:29,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:29,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:29,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:50:29,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:29,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:50:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:29,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:29,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:29,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:29,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:29,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:50:29,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:29,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 03:50:29,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:29,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:29,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:29,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:29,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:29,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:50:29,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:29,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-04-02 03:50:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:29,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:29,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:50:29,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:29,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-04-02 03:50:29,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:29,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:29,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:29,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-04-02 03:50:29,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:29,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-04-02 03:50:29,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:29,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-04-02 03:50:29,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:29,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-04-02 03:50:29,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:29,325 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-04-02 03:50:29,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:50:29,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109710663] [2023-04-02 03:50:29,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109710663] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:50:29,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:50:29,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 03:50:29,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204310896] [2023-04-02 03:50:29,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:50:29,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 03:50:29,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:50:29,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 03:50:29,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-04-02 03:50:29,327 INFO L87 Difference]: Start difference. First operand 667 states and 974 transitions. Second operand has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (37), 11 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:50:37,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:50:37,559 INFO L93 Difference]: Finished difference Result 2415 states and 3995 transitions. [2023-04-02 03:50:37,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 03:50:37,560 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (37), 11 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 170 [2023-04-02 03:50:37,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:50:37,566 INFO L225 Difference]: With dead ends: 2415 [2023-04-02 03:50:37,566 INFO L226 Difference]: Without dead ends: 1850 [2023-04-02 03:50:37,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=211, Invalid=439, Unknown=0, NotChecked=0, Total=650 [2023-04-02 03:50:37,569 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 1485 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 2521 mSolverCounterSat, 599 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 3120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 599 IncrementalHoareTripleChecker+Valid, 2521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-04-02 03:50:37,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 34 Invalid, 3120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [599 Valid, 2521 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-04-02 03:50:37,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1850 states. [2023-04-02 03:50:38,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1850 to 865. [2023-04-02 03:50:38,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 639 states have (on average 1.5352112676056338) internal successors, (981), 644 states have internal predecessors, (981), 163 states have call successors, (163), 64 states have call predecessors, (163), 62 states have return successors, (161), 158 states have call predecessors, (161), 158 states have call successors, (161) [2023-04-02 03:50:38,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1305 transitions. [2023-04-02 03:50:38,323 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1305 transitions. Word has length 170 [2023-04-02 03:50:38,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:50:38,324 INFO L495 AbstractCegarLoop]: Abstraction has 865 states and 1305 transitions. [2023-04-02 03:50:38,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (37), 11 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:50:38,324 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1305 transitions. [2023-04-02 03:50:38,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-04-02 03:50:38,326 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:50:38,326 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:50:38,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 03:50:38,326 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:50:38,326 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:50:38,327 INFO L85 PathProgramCache]: Analyzing trace with hash 122362065, now seen corresponding path program 1 times [2023-04-02 03:50:38,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:50:38,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222542850] [2023-04-02 03:50:38,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:50:38,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:50:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:38,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:50:38,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:38,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:50:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:38,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:50:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:38,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:50:38,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:38,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:50:38,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:38,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:38,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:38,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:38,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:38,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:38,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:38,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:50:38,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:38,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:50:38,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:38,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:38,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:38,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:38,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:50:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:38,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 03:50:38,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:38,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:38,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:38,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:38,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:38,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:50:38,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:38,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-04-02 03:50:38,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:38,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:38,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:38,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:50:38,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:38,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-02 03:50:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:38,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:38,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-04-02 03:50:38,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:38,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-04-02 03:50:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:38,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-04-02 03:50:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:38,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-04-02 03:50:38,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:38,941 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-04-02 03:50:38,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:50:38,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222542850] [2023-04-02 03:50:38,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222542850] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:50:38,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:50:38,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 03:50:38,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837584967] [2023-04-02 03:50:38,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:50:38,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 03:50:38,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:50:38,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 03:50:38,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-04-02 03:50:38,942 INFO L87 Difference]: Start difference. First operand 865 states and 1305 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (37), 11 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:50:46,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:50:46,697 INFO L93 Difference]: Finished difference Result 3419 states and 5819 transitions. [2023-04-02 03:50:46,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 03:50:46,697 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (37), 11 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 171 [2023-04-02 03:50:46,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:50:46,723 INFO L225 Difference]: With dead ends: 3419 [2023-04-02 03:50:46,723 INFO L226 Difference]: Without dead ends: 2685 [2023-04-02 03:50:46,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=211, Invalid=439, Unknown=0, NotChecked=0, Total=650 [2023-04-02 03:50:46,741 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 3480 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 2226 mSolverCounterSat, 1475 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3505 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 3701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1475 IncrementalHoareTripleChecker+Valid, 2226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-04-02 03:50:46,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3505 Valid, 30 Invalid, 3701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1475 Valid, 2226 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-04-02 03:50:46,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states. [2023-04-02 03:50:47,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 1165. [2023-04-02 03:50:47,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1165 states, 886 states have (on average 1.5485327313769752) internal successors, (1372), 891 states have internal predecessors, (1372), 216 states have call successors, (216), 64 states have call predecessors, (216), 62 states have return successors, (214), 211 states have call predecessors, (214), 211 states have call successors, (214) [2023-04-02 03:50:47,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1165 states to 1165 states and 1802 transitions. [2023-04-02 03:50:47,951 INFO L78 Accepts]: Start accepts. Automaton has 1165 states and 1802 transitions. Word has length 171 [2023-04-02 03:50:47,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:50:47,952 INFO L495 AbstractCegarLoop]: Abstraction has 1165 states and 1802 transitions. [2023-04-02 03:50:47,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (37), 11 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:50:47,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1165 states and 1802 transitions. [2023-04-02 03:50:47,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-04-02 03:50:47,955 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:50:47,955 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:50:47,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-04-02 03:50:47,955 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:50:47,955 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:50:47,956 INFO L85 PathProgramCache]: Analyzing trace with hash 623293726, now seen corresponding path program 1 times [2023-04-02 03:50:47,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:50:47,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871579898] [2023-04-02 03:50:47,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:50:47,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:50:47,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:48,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:50:48,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:48,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:50:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:48,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:50:48,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:48,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:50:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:48,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:50:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:48,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:48,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:48,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:48,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:48,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:48,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:50:48,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:48,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:50:48,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:48,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:48,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:48,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:48,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:50:48,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:48,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 03:50:48,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:48,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:48,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:48,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:48,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:48,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:50:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:48,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-04-02 03:50:48,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:48,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:48,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:50:48,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:48,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-04-02 03:50:48,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:48,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:50:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:48,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-04-02 03:50:48,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:48,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-04-02 03:50:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:48,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-04-02 03:50:48,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:48,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 03:50:48,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:50:48,595 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-04-02 03:50:48,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:50:48,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871579898] [2023-04-02 03:50:48,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871579898] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:50:48,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:50:48,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 03:50:48,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917208061] [2023-04-02 03:50:48,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:50:48,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 03:50:48,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:50:48,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 03:50:48,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-04-02 03:50:48,597 INFO L87 Difference]: Start difference. First operand 1165 states and 1802 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (37), 11 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:50:58,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:50:58,993 INFO L93 Difference]: Finished difference Result 4979 states and 8636 transitions. [2023-04-02 03:50:58,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 03:50:58,994 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (37), 11 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 172 [2023-04-02 03:50:58,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:50:59,008 INFO L225 Difference]: With dead ends: 4979 [2023-04-02 03:50:59,008 INFO L226 Difference]: Without dead ends: 4001 [2023-04-02 03:50:59,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=211, Invalid=439, Unknown=0, NotChecked=0, Total=650 [2023-04-02 03:50:59,013 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 3372 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 2112 mSolverCounterSat, 1433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3397 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 3545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1433 IncrementalHoareTripleChecker+Valid, 2112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-04-02 03:50:59,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3397 Valid, 28 Invalid, 3545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1433 Valid, 2112 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-04-02 03:50:59,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4001 states. [2023-04-02 03:51:00,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4001 to 1638. [2023-04-02 03:51:00,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1638 states, 1278 states have (on average 1.5539906103286385) internal successors, (1986), 1283 states have internal predecessors, (1986), 297 states have call successors, (297), 64 states have call predecessors, (297), 62 states have return successors, (295), 292 states have call predecessors, (295), 292 states have call successors, (295) [2023-04-02 03:51:00,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1638 states to 1638 states and 2578 transitions. [2023-04-02 03:51:00,847 INFO L78 Accepts]: Start accepts. Automaton has 1638 states and 2578 transitions. Word has length 172 [2023-04-02 03:51:00,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:51:00,847 INFO L495 AbstractCegarLoop]: Abstraction has 1638 states and 2578 transitions. [2023-04-02 03:51:00,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (37), 11 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:51:00,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1638 states and 2578 transitions. [2023-04-02 03:51:00,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-04-02 03:51:00,851 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:51:00,851 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:51:00,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-04-02 03:51:00,851 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:51:00,852 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:51:00,852 INFO L85 PathProgramCache]: Analyzing trace with hash -64241647, now seen corresponding path program 1 times [2023-04-02 03:51:00,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:51:00,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646925327] [2023-04-02 03:51:00,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:51:00,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:51:00,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:01,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:51:01,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:01,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:51:01,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:01,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:51:01,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:01,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:51:01,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:01,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:51:01,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:01,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:51:01,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:01,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:51:01,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:01,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:51:01,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:01,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:51:01,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:01,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:51:01,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:01,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:51:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:01,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:51:01,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:01,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:51:01,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:01,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 03:51:01,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:01,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:51:01,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:01,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:51:01,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:01,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:51:01,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:01,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 03:51:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:01,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:51:01,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:01,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:51:01,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:01,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 03:51:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:01,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:51:01,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:01,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 03:51:01,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:01,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-04-02 03:51:01,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:01,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-04-02 03:51:01,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:01,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-04-02 03:51:01,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:01,438 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-04-02 03:51:01,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:51:01,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646925327] [2023-04-02 03:51:01,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646925327] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:51:01,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:51:01,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 03:51:01,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450488845] [2023-04-02 03:51:01,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:51:01,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 03:51:01,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:51:01,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 03:51:01,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-04-02 03:51:01,452 INFO L87 Difference]: Start difference. First operand 1638 states and 2578 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (37), 11 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:51:14,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:51:14,409 INFO L93 Difference]: Finished difference Result 7518 states and 13190 transitions. [2023-04-02 03:51:14,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 03:51:14,409 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (37), 11 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 173 [2023-04-02 03:51:14,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:51:14,433 INFO L225 Difference]: With dead ends: 7518 [2023-04-02 03:51:14,433 INFO L226 Difference]: Without dead ends: 6166 [2023-04-02 03:51:14,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=211, Invalid=439, Unknown=0, NotChecked=0, Total=650 [2023-04-02 03:51:14,440 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2235 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 2385 mSolverCounterSat, 963 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2260 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 3348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 963 IncrementalHoareTripleChecker+Valid, 2385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-04-02 03:51:14,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2260 Valid, 32 Invalid, 3348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [963 Valid, 2385 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-04-02 03:51:14,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6166 states. [2023-04-02 03:51:17,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6166 to 2406. [2023-04-02 03:51:17,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2406 states, 1919 states have (on average 1.5549765502866075) internal successors, (2984), 1924 states have internal predecessors, (2984), 424 states have call successors, (424), 64 states have call predecessors, (424), 62 states have return successors, (422), 419 states have call predecessors, (422), 419 states have call successors, (422) [2023-04-02 03:51:17,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2406 states to 2406 states and 3830 transitions. [2023-04-02 03:51:17,579 INFO L78 Accepts]: Start accepts. Automaton has 2406 states and 3830 transitions. Word has length 173 [2023-04-02 03:51:17,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:51:17,579 INFO L495 AbstractCegarLoop]: Abstraction has 2406 states and 3830 transitions. [2023-04-02 03:51:17,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (37), 11 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:51:17,579 INFO L276 IsEmpty]: Start isEmpty. Operand 2406 states and 3830 transitions. [2023-04-02 03:51:17,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-04-02 03:51:17,585 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:51:17,585 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:51:17,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-04-02 03:51:17,585 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:51:17,586 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:51:17,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1097908702, now seen corresponding path program 1 times [2023-04-02 03:51:17,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:51:17,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710447551] [2023-04-02 03:51:17,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:51:17,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:51:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:18,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:51:18,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:18,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:51:18,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:18,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:51:18,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:18,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:51:18,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:18,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:51:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:18,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:51:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:18,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:51:18,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:18,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:51:18,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:18,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:51:18,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:18,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:51:18,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:18,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:51:18,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:18,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:51:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:18,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:51:18,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:18,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 03:51:18,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:18,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:51:18,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:18,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:51:18,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:18,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:51:18,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:18,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-04-02 03:51:18,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:18,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:51:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:18,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:51:18,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:18,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-04-02 03:51:18,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:18,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:51:18,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:18,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-04-02 03:51:18,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:18,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-04-02 03:51:18,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:18,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-04-02 03:51:18,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:18,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-04-02 03:51:18,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:18,170 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-04-02 03:51:18,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:51:18,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710447551] [2023-04-02 03:51:18,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710447551] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:51:18,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:51:18,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 03:51:18,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282446879] [2023-04-02 03:51:18,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:51:18,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 03:51:18,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:51:18,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 03:51:18,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-04-02 03:51:18,172 INFO L87 Difference]: Start difference. First operand 2406 states and 3830 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (37), 11 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:51:37,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:51:37,768 INFO L93 Difference]: Finished difference Result 11985 states and 21179 transitions. [2023-04-02 03:51:37,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 03:51:37,769 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (37), 11 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 174 [2023-04-02 03:51:37,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:51:37,792 INFO L225 Difference]: With dead ends: 11985 [2023-04-02 03:51:37,792 INFO L226 Difference]: Without dead ends: 9989 [2023-04-02 03:51:37,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=211, Invalid=439, Unknown=0, NotChecked=0, Total=650 [2023-04-02 03:51:37,801 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2495 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 2371 mSolverCounterSat, 982 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2520 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 3353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 982 IncrementalHoareTripleChecker+Valid, 2371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-04-02 03:51:37,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2520 Valid, 28 Invalid, 3353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [982 Valid, 2371 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-04-02 03:51:37,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9989 states. [2023-04-02 03:51:43,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9989 to 3777. [2023-04-02 03:51:43,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3777 states, 3046 states have (on average 1.5469468154957322) internal successors, (4712), 3051 states have internal predecessors, (4712), 668 states have call successors, (668), 64 states have call predecessors, (668), 62 states have return successors, (666), 663 states have call predecessors, (666), 663 states have call successors, (666) [2023-04-02 03:51:43,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3777 states to 3777 states and 6046 transitions. [2023-04-02 03:51:43,165 INFO L78 Accepts]: Start accepts. Automaton has 3777 states and 6046 transitions. Word has length 174 [2023-04-02 03:51:43,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:51:43,165 INFO L495 AbstractCegarLoop]: Abstraction has 3777 states and 6046 transitions. [2023-04-02 03:51:43,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (37), 11 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:51:43,165 INFO L276 IsEmpty]: Start isEmpty. Operand 3777 states and 6046 transitions. [2023-04-02 03:51:43,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-04-02 03:51:43,174 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:51:43,174 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:51:43,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-04-02 03:51:43,174 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:51:43,174 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:51:43,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1411645265, now seen corresponding path program 1 times [2023-04-02 03:51:43,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:51:43,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867097636] [2023-04-02 03:51:43,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:51:43,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:51:43,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:43,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:51:43,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:43,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:51:43,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:43,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:51:43,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:43,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:51:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:43,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:51:43,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:43,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:51:43,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:43,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:51:43,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:43,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:51:43,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:43,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:51:43,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:43,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:51:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:43,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:51:43,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:43,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:51:43,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:43,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:51:43,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:43,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 03:51:43,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:43,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:51:43,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:43,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:51:43,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:43,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:51:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:43,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-04-02 03:51:43,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:43,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:51:43,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:43,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:51:43,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:43,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-04-02 03:51:43,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:43,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:51:43,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:43,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 03:51:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:43,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-04-02 03:51:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:43,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-04-02 03:51:43,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:43,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-04-02 03:51:43,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:51:43,759 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-04-02 03:51:43,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:51:43,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867097636] [2023-04-02 03:51:43,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867097636] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:51:43,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:51:43,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 03:51:43,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565066151] [2023-04-02 03:51:43,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:51:43,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 03:51:43,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:51:43,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 03:51:43,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-04-02 03:51:43,761 INFO L87 Difference]: Start difference. First operand 3777 states and 6046 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (37), 11 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:52:14,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:52:14,259 INFO L93 Difference]: Finished difference Result 19950 states and 35283 transitions. [2023-04-02 03:52:14,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 03:52:14,260 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (37), 11 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 175 [2023-04-02 03:52:14,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:52:14,302 INFO L225 Difference]: With dead ends: 19950 [2023-04-02 03:52:14,302 INFO L226 Difference]: Without dead ends: 16810 [2023-04-02 03:52:14,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=211, Invalid=439, Unknown=0, NotChecked=0, Total=650 [2023-04-02 03:52:14,319 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2945 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 2376 mSolverCounterSat, 1268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2970 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 3644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1268 IncrementalHoareTripleChecker+Valid, 2376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-04-02 03:52:14,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2970 Valid, 30 Invalid, 3644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1268 Valid, 2376 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-04-02 03:52:14,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16810 states. [2023-04-02 03:52:23,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16810 to 6095. [2023-04-02 03:52:23,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6095 states, 4992 states have (on average 1.5440705128205128) internal successors, (7708), 4997 states have internal predecessors, (7708), 1040 states have call successors, (1040), 64 states have call predecessors, (1040), 62 states have return successors, (1038), 1035 states have call predecessors, (1038), 1035 states have call successors, (1038) [2023-04-02 03:52:23,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6095 states to 6095 states and 9786 transitions. [2023-04-02 03:52:23,709 INFO L78 Accepts]: Start accepts. Automaton has 6095 states and 9786 transitions. Word has length 175 [2023-04-02 03:52:23,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:52:23,709 INFO L495 AbstractCegarLoop]: Abstraction has 6095 states and 9786 transitions. [2023-04-02 03:52:23,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (37), 11 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:52:23,709 INFO L276 IsEmpty]: Start isEmpty. Operand 6095 states and 9786 transitions. [2023-04-02 03:52:23,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-04-02 03:52:23,720 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:52:23,720 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:52:23,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-04-02 03:52:23,720 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:52:23,721 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:52:23,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1724063460, now seen corresponding path program 1 times [2023-04-02 03:52:23,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:52:23,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369882981] [2023-04-02 03:52:23,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:52:23,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:52:23,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:52:24,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:52:24,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:52:24,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:52:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:52:24,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:52:24,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:52:24,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:52:24,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:52:24,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:52:24,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:52:24,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:52:24,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:52:24,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:52:24,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:52:24,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:52:24,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:52:24,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:52:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:52:24,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:52:24,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:52:24,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:52:24,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:52:24,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:52:24,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:52:24,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:52:24,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:52:24,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 03:52:24,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:52:24,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:52:24,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:52:24,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:52:24,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:52:24,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:52:24,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:52:24,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-04-02 03:52:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:52:24,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:52:24,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:52:24,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:52:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:52:24,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-04-02 03:52:24,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:52:24,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:52:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:52:24,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-04-02 03:52:24,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:52:24,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-04-02 03:52:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:52:24,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 03:52:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:52:24,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-04-02 03:52:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:52:24,295 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-04-02 03:52:24,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:52:24,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369882981] [2023-04-02 03:52:24,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369882981] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:52:24,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:52:24,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 03:52:24,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442606195] [2023-04-02 03:52:24,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:52:24,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 03:52:24,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:52:24,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 03:52:24,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-04-02 03:52:24,296 INFO L87 Difference]: Start difference. First operand 6095 states and 9786 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (37), 11 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26)