/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_spec4_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 03:40:05,376 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 03:40:05,378 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 03:40:05,417 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 03:40:05,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 03:40:05,420 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 03:40:05,423 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 03:40:05,425 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 03:40:05,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 03:40:05,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 03:40:05,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 03:40:05,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 03:40:05,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 03:40:05,437 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 03:40:05,438 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 03:40:05,439 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 03:40:05,440 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 03:40:05,441 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 03:40:05,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 03:40:05,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 03:40:05,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 03:40:05,449 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 03:40:05,450 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 03:40:05,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 03:40:05,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 03:40:05,464 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 03:40:05,464 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 03:40:05,465 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 03:40:05,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 03:40:05,466 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 03:40:05,466 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 03:40:05,467 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 03:40:05,468 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 03:40:05,468 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 03:40:05,469 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 03:40:05,469 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 03:40:05,470 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 03:40:05,470 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 03:40:05,470 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 03:40:05,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 03:40:05,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 03:40:05,473 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 03:40:05,498 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 03:40:05,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 03:40:05,499 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 03:40:05,499 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 03:40:05,500 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 03:40:05,500 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 03:40:05,501 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 03:40:05,501 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 03:40:05,501 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 03:40:05,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 03:40:05,502 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 03:40:05,502 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 03:40:05,502 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 03:40:05,503 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 03:40:05,503 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 03:40:05,503 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 03:40:05,503 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 03:40:05,503 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 03:40:05,503 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 03:40:05,504 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 03:40:05,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 03:40:05,504 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 03:40:05,504 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 03:40:05,504 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 03:40:05,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 03:40:05,505 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 03:40:05,505 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 03:40:05,505 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 03:40:05,505 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 03:40:05,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 03:40:05,506 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 03:40:05,506 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 03:40:05,506 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 03:40:05,506 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 03:40:05,506 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 03:40:05,507 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 03:40:05,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 03:40:05,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 03:40:05,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 03:40:05,763 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 03:40:05,764 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 03:40:05,765 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec4_product18.cil.c [2023-04-02 03:40:06,958 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 03:40:07,272 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 03:40:07,273 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec4_product18.cil.c [2023-04-02 03:40:07,305 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/507ff8787/e1b3167b7e2f4354957b2f5964f32406/FLAGd832d9fb8 [2023-04-02 03:40:07,317 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/507ff8787/e1b3167b7e2f4354957b2f5964f32406 [2023-04-02 03:40:07,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 03:40:07,321 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 03:40:07,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 03:40:07,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 03:40:07,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 03:40:07,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 03:40:07" (1/1) ... [2023-04-02 03:40:07,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ba8238 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:40:07, skipping insertion in model container [2023-04-02 03:40:07,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 03:40:07" (1/1) ... [2023-04-02 03:40:07,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 03:40:07,390 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 03:40:07,920 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_spec4_product18.cil.c[61907,61920] [2023-04-02 03:40:07,926 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 03:40:07,943 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 03:40:08,030 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_spec4_product18.cil.c[61907,61920] [2023-04-02 03:40:08,031 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 03:40:08,049 WARN L667 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-04-02 03:40:08,054 INFO L208 MainTranslator]: Completed translation [2023-04-02 03:40:08,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:40:08 WrapperNode [2023-04-02 03:40:08,055 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 03:40:08,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 03:40:08,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 03:40:08,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 03:40:08,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:40:08" (1/1) ... [2023-04-02 03:40:08,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:40:08" (1/1) ... [2023-04-02 03:40:08,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:40:08" (1/1) ... [2023-04-02 03:40:08,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:40:08" (1/1) ... [2023-04-02 03:40:08,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:40:08" (1/1) ... [2023-04-02 03:40:08,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:40:08" (1/1) ... [2023-04-02 03:40:08,161 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:40:08" (1/1) ... [2023-04-02 03:40:08,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:40:08" (1/1) ... [2023-04-02 03:40:08,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 03:40:08,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 03:40:08,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 03:40:08,210 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 03:40:08,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:40:08" (1/1) ... [2023-04-02 03:40:08,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 03:40:08,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 03:40:08,244 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 03:40:08,260 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 03:40:08,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 03:40:08,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 03:40:08,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 03:40:08,286 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 03:40:08,286 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2023-04-02 03:40:08,286 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2023-04-02 03:40:08,286 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2023-04-02 03:40:08,287 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2023-04-02 03:40:08,287 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2023-04-02 03:40:08,287 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-04-02 03:40:08,287 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-04-02 03:40:08,287 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2023-04-02 03:40:08,287 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2023-04-02 03:40:08,287 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2023-04-02 03:40:08,287 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2023-04-02 03:40:08,287 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-04-02 03:40:08,287 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-04-02 03:40:08,287 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2023-04-02 03:40:08,287 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2023-04-02 03:40:08,287 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-04-02 03:40:08,288 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-04-02 03:40:08,288 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2023-04-02 03:40:08,288 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2023-04-02 03:40:08,288 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-04-02 03:40:08,288 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2023-04-02 03:40:08,288 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-04-02 03:40:08,288 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2023-04-02 03:40:08,288 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-04-02 03:40:08,288 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-04-02 03:40:08,288 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2023-04-02 03:40:08,288 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2023-04-02 03:40:08,288 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2023-04-02 03:40:08,288 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-04-02 03:40:08,289 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2023-04-02 03:40:08,289 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2023-04-02 03:40:08,289 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2023-04-02 03:40:08,289 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-04-02 03:40:08,289 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-04-02 03:40:08,289 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-04-02 03:40:08,289 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-04-02 03:40:08,289 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2023-04-02 03:40:08,289 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2023-04-02 03:40:08,289 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2023-04-02 03:40:08,289 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2023-04-02 03:40:08,289 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-04-02 03:40:08,289 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-04-02 03:40:08,290 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-04-02 03:40:08,290 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-04-02 03:40:08,290 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-04-02 03:40:08,290 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2023-04-02 03:40:08,290 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-04-02 03:40:08,291 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2023-04-02 03:40:08,291 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2023-04-02 03:40:08,291 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2023-04-02 03:40:08,292 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2023-04-02 03:40:08,292 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2023-04-02 03:40:08,292 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2023-04-02 03:40:08,292 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2023-04-02 03:40:08,292 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2023-04-02 03:40:08,292 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2023-04-02 03:40:08,293 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2023-04-02 03:40:08,293 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2023-04-02 03:40:08,293 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 03:40:08,293 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 03:40:08,293 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2023-04-02 03:40:08,293 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2023-04-02 03:40:08,293 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2023-04-02 03:40:08,293 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2023-04-02 03:40:08,293 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-04-02 03:40:08,293 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2023-04-02 03:40:08,293 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2023-04-02 03:40:08,293 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2023-04-02 03:40:08,293 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2023-04-02 03:40:08,294 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2023-04-02 03:40:08,294 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2023-04-02 03:40:08,294 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2023-04-02 03:40:08,294 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2023-04-02 03:40:08,294 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-04-02 03:40:08,294 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2023-04-02 03:40:08,295 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2023-04-02 03:40:08,295 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 03:40:08,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 03:40:08,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 03:40:08,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 03:40:08,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 03:40:08,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 03:40:08,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 03:40:08,296 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 03:40:08,296 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 03:40:08,296 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 03:40:08,296 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 03:40:08,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2023-04-02 03:40:08,296 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2023-04-02 03:40:08,297 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-04-02 03:40:08,297 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-04-02 03:40:08,297 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2023-04-02 03:40:08,297 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2023-04-02 03:40:08,297 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2023-04-02 03:40:08,297 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2023-04-02 03:40:08,297 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2023-04-02 03:40:08,297 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-04-02 03:40:08,297 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-04-02 03:40:08,297 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2023-04-02 03:40:08,297 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2023-04-02 03:40:08,297 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2023-04-02 03:40:08,297 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-04-02 03:40:08,297 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-04-02 03:40:08,298 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2023-04-02 03:40:08,298 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2023-04-02 03:40:08,298 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2023-04-02 03:40:08,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 03:40:08,298 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2023-04-02 03:40:08,298 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 03:40:08,298 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 03:40:08,298 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 03:40:08,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 03:40:08,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 03:40:08,299 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2023-04-02 03:40:08,299 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2023-04-02 03:40:08,299 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2023-04-02 03:40:08,299 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2023-04-02 03:40:08,299 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2023-04-02 03:40:08,300 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-04-02 03:40:08,300 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-04-02 03:40:08,301 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2023-04-02 03:40:08,301 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2023-04-02 03:40:08,301 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2023-04-02 03:40:08,302 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-04-02 03:40:08,304 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-04-02 03:40:08,309 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2023-04-02 03:40:08,310 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2023-04-02 03:40:08,310 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-04-02 03:40:08,310 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-04-02 03:40:08,310 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2023-04-02 03:40:08,310 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-04-02 03:40:08,310 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2023-04-02 03:40:08,310 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-04-02 03:40:08,310 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2023-04-02 03:40:08,310 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-04-02 03:40:08,310 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2023-04-02 03:40:08,310 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2023-04-02 03:40:08,310 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2023-04-02 03:40:08,310 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-04-02 03:40:08,311 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-04-02 03:40:08,311 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2023-04-02 03:40:08,311 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2023-04-02 03:40:08,311 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2023-04-02 03:40:08,311 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2023-04-02 03:40:08,311 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2023-04-02 03:40:08,311 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-04-02 03:40:08,311 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-04-02 03:40:08,311 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-04-02 03:40:08,311 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-04-02 03:40:08,311 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2023-04-02 03:40:08,311 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2023-04-02 03:40:08,311 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2023-04-02 03:40:08,311 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2023-04-02 03:40:08,312 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-04-02 03:40:08,312 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-04-02 03:40:08,312 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-04-02 03:40:08,312 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-04-02 03:40:08,312 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-04-02 03:40:08,312 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2023-04-02 03:40:08,312 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-04-02 03:40:08,312 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2023-04-02 03:40:08,312 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2023-04-02 03:40:08,312 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2023-04-02 03:40:08,312 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 03:40:08,312 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-04-02 03:40:08,312 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 03:40:08,312 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 03:40:08,312 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 03:40:08,313 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2023-04-02 03:40:08,313 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2023-04-02 03:40:08,313 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2023-04-02 03:40:08,313 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-04-02 03:40:08,313 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-04-02 03:40:08,313 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-04-02 03:40:08,313 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2023-04-02 03:40:08,313 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2023-04-02 03:40:08,313 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2023-04-02 03:40:08,313 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2023-04-02 03:40:08,313 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2023-04-02 03:40:08,313 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 03:40:08,313 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 03:40:08,313 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 03:40:08,313 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2023-04-02 03:40:08,314 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2023-04-02 03:40:08,314 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2023-04-02 03:40:08,314 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2023-04-02 03:40:08,314 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-04-02 03:40:08,314 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2023-04-02 03:40:08,314 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2023-04-02 03:40:08,314 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2023-04-02 03:40:08,314 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2023-04-02 03:40:08,314 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2023-04-02 03:40:08,314 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2023-04-02 03:40:08,314 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2023-04-02 03:40:08,314 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2023-04-02 03:40:08,314 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2023-04-02 03:40:08,314 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-04-02 03:40:08,314 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2023-04-02 03:40:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2023-04-02 03:40:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2023-04-02 03:40:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2023-04-02 03:40:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 03:40:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 03:40:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 03:40:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 03:40:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 03:40:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 03:40:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 03:40:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 03:40:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 03:40:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 03:40:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 03:40:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 03:40:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 03:40:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 03:40:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 03:40:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 03:40:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 03:40:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2023-04-02 03:40:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-04-02 03:40:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2023-04-02 03:40:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2023-04-02 03:40:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2023-04-02 03:40:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2023-04-02 03:40:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-04-02 03:40:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2023-04-02 03:40:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2023-04-02 03:40:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2023-04-02 03:40:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-04-02 03:40:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2023-04-02 03:40:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2023-04-02 03:40:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2023-04-02 03:40:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 03:40:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 03:40:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 03:40:08,655 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 03:40:08,658 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 03:40:09,914 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 03:40:09,934 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 03:40:09,934 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-04-02 03:40:09,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 03:40:09 BoogieIcfgContainer [2023-04-02 03:40:09,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 03:40:09,940 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 03:40:09,940 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 03:40:09,942 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 03:40:09,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 03:40:07" (1/3) ... [2023-04-02 03:40:09,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@635a692f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 03:40:09, skipping insertion in model container [2023-04-02 03:40:09,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:40:08" (2/3) ... [2023-04-02 03:40:09,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@635a692f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 03:40:09, skipping insertion in model container [2023-04-02 03:40:09,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 03:40:09" (3/3) ... [2023-04-02 03:40:09,945 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product18.cil.c [2023-04-02 03:40:09,961 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 03:40:09,961 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 03:40:10,012 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 03:40:10,017 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;@32e30598, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 03:40:10,018 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 03:40:10,024 INFO L276 IsEmpty]: Start isEmpty. Operand has 482 states, 309 states have (on average 1.4142394822006472) internal successors, (437), 316 states have internal predecessors, (437), 98 states have call successors, (98), 67 states have call predecessors, (98), 67 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2023-04-02 03:40:10,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-04-02 03:40:10,041 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:40:10,042 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-04-02 03:40:10,042 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:40:10,047 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:40:10,047 INFO L85 PathProgramCache]: Analyzing trace with hash -450222713, now seen corresponding path program 1 times [2023-04-02 03:40:10,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:40:10,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766430704] [2023-04-02 03:40:10,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:40:10,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:40:10,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:11,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:40:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:11,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:40:11,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:11,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:40:11,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:11,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:40:11,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:11,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:40:11,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:11,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:11,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:11,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:11,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:11,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:11,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:40:11,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:11,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:40:11,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:11,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:11,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:11,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:11,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:40:11,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:11,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 03:40:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:11,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:11,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:11,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:11,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:11,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:40:11,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:11,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 03:40:11,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:11,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:11,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:11,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:40:11,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:11,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 03:40:11,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:11,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:11,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:11,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-04-02 03:40:11,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:11,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-04-02 03:40:11,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:11,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-04-02 03:40:11,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:11,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-04-02 03:40:11,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:11,422 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-02 03:40:11,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:40:11,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766430704] [2023-04-02 03:40:11,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766430704] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:40:11,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:40:11,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 03:40:11,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932072747] [2023-04-02 03:40:11,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:40:11,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 03:40:11,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:40:11,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 03:40:11,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-04-02 03:40:11,469 INFO L87 Difference]: Start difference. First operand has 482 states, 309 states have (on average 1.4142394822006472) internal successors, (437), 316 states have internal predecessors, (437), 98 states have call successors, (98), 67 states have call predecessors, (98), 67 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (35), 11 states have call predecessors, (35), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:40:20,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:40:20,284 INFO L93 Difference]: Finished difference Result 1148 states and 1750 transitions. [2023-04-02 03:40:20,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-04-02 03:40:20,287 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (35), 11 states have call predecessors, (35), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 148 [2023-04-02 03:40:20,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:40:20,303 INFO L225 Difference]: With dead ends: 1148 [2023-04-02 03:40:20,303 INFO L226 Difference]: Without dead ends: 779 [2023-04-02 03:40:20,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=419, Invalid=1303, Unknown=0, NotChecked=0, Total=1722 [2023-04-02 03:40:20,315 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 2060 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 2178 mSolverCounterSat, 1019 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2089 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 3197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1019 IncrementalHoareTripleChecker+Valid, 2178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-04-02 03:40:20,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2089 Valid, 218 Invalid, 3197 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1019 Valid, 2178 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2023-04-02 03:40:20,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2023-04-02 03:40:20,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 437. [2023-04-02 03:40:20,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 285 states have (on average 1.424561403508772) internal successors, (406), 289 states have internal predecessors, (406), 89 states have call successors, (89), 66 states have call predecessors, (89), 62 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2023-04-02 03:40:20,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 579 transitions. [2023-04-02 03:40:20,625 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 579 transitions. Word has length 148 [2023-04-02 03:40:20,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:40:20,626 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 579 transitions. [2023-04-02 03:40:20,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (35), 11 states have call predecessors, (35), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:40:20,626 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 579 transitions. [2023-04-02 03:40:20,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-04-02 03:40:20,630 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:40:20,631 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-04-02 03:40:20,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 03:40:20,631 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:40:20,631 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:40:20,632 INFO L85 PathProgramCache]: Analyzing trace with hash 49793329, now seen corresponding path program 1 times [2023-04-02 03:40:20,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:40:20,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792237420] [2023-04-02 03:40:20,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:40:20,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:40:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:21,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:40:21,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:21,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:40:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:21,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:40:21,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:21,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:40:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:21,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:40:21,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:21,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:21,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:21,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:21,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:21,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:21,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:40:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:21,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:40:21,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:21,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:21,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:21,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:21,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:40:21,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:21,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 03:40:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:21,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:21,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:21,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:21,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:21,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:40:21,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:21,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 03:40:21,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:21,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:21,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:40:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:21,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 03:40:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:21,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:21,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:21,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 03:40:21,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:21,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-04-02 03:40:21,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:21,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 03:40:21,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:21,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 03:40:21,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:21,847 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-04-02 03:40:21,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:40:21,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792237420] [2023-04-02 03:40:21,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792237420] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 03:40:21,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029191315] [2023-04-02 03:40:21,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:40:21,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:40:21,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 03:40:21,853 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 03:40:21,866 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 03:40:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:22,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 2048 conjuncts, 2 conjunts are in the unsatisfiable core [2023-04-02 03:40:22,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 03:40:22,333 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-02 03:40:22,333 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 03:40:22,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029191315] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:40:22,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 03:40:22,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [18] total 19 [2023-04-02 03:40:22,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763272843] [2023-04-02 03:40:22,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:40:22,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 03:40:22,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:40:22,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 03:40:22,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 03:40:22,337 INFO L87 Difference]: Start difference. First operand 437 states and 579 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:40:22,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:40:22,653 INFO L93 Difference]: Finished difference Result 645 states and 838 transitions. [2023-04-02 03:40:22,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 03:40:22,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 149 [2023-04-02 03:40:22,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:40:22,661 INFO L225 Difference]: With dead ends: 645 [2023-04-02 03:40:22,662 INFO L226 Difference]: Without dead ends: 440 [2023-04-02 03:40:22,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 190 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 03:40:22,664 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 1 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1152 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 03:40:22,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1152 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 03:40:22,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2023-04-02 03:40:22,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 439. [2023-04-02 03:40:22,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 287 states have (on average 1.421602787456446) internal successors, (408), 291 states have internal predecessors, (408), 89 states have call successors, (89), 66 states have call predecessors, (89), 62 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2023-04-02 03:40:22,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 581 transitions. [2023-04-02 03:40:22,948 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 581 transitions. Word has length 149 [2023-04-02 03:40:22,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:40:22,949 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 581 transitions. [2023-04-02 03:40:22,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:40:22,949 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 581 transitions. [2023-04-02 03:40:22,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-04-02 03:40:22,952 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:40:22,952 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-04-02 03:40:22,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-02 03:40:23,161 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 03:40:23,161 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:40:23,162 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:40:23,162 INFO L85 PathProgramCache]: Analyzing trace with hash 476630849, now seen corresponding path program 1 times [2023-04-02 03:40:23,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:40:23,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321378138] [2023-04-02 03:40:23,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:40:23,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:40:23,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:24,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:40:24,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:24,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:40:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:24,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:40:24,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:24,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:40:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:24,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:40:24,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:24,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:24,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:24,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:24,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:24,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:40:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:24,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:40:24,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:24,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:24,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:24,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:24,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:40:24,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:24,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 03:40:24,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:24,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:24,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:24,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:24,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:40:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:24,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-04-02 03:40:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:24,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:24,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:24,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:40:24,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:24,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 03:40:24,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:24,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:24,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:24,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-04-02 03:40:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:24,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-04-02 03:40:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:24,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-04-02 03:40:24,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:24,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-04-02 03:40:24,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:24,391 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-04-02 03:40:24,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:40:24,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321378138] [2023-04-02 03:40:24,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321378138] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 03:40:24,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131022118] [2023-04-02 03:40:24,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:40:24,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:40:24,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 03:40:24,397 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 03:40:24,400 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 03:40:24,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:24,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 2064 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 03:40:24,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 03:40:24,842 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-02 03:40:24,842 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 03:40:24,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131022118] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:40:24,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 03:40:24,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [18] total 19 [2023-04-02 03:40:24,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914918581] [2023-04-02 03:40:24,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:40:24,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 03:40:24,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:40:24,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 03:40:24,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 03:40:24,850 INFO L87 Difference]: Start difference. First operand 439 states and 581 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:40:25,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:40:25,186 INFO L93 Difference]: Finished difference Result 854 states and 1160 transitions. [2023-04-02 03:40:25,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 03:40:25,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 159 [2023-04-02 03:40:25,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:40:25,190 INFO L225 Difference]: With dead ends: 854 [2023-04-02 03:40:25,190 INFO L226 Difference]: Without dead ends: 480 [2023-04-02 03:40:25,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 200 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 03:40:25,192 INFO L413 NwaCegarLoop]: 582 mSDtfsCounter, 52 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1154 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 03:40:25,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1154 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 03:40:25,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-04-02 03:40:25,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 479. [2023-04-02 03:40:25,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 319 states have (on average 1.445141065830721) internal successors, (461), 323 states have internal predecessors, (461), 97 states have call successors, (97), 66 states have call predecessors, (97), 62 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2023-04-02 03:40:25,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 650 transitions. [2023-04-02 03:40:25,411 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 650 transitions. Word has length 159 [2023-04-02 03:40:25,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:40:25,412 INFO L495 AbstractCegarLoop]: Abstraction has 479 states and 650 transitions. [2023-04-02 03:40:25,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:40:25,412 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 650 transitions. [2023-04-02 03:40:25,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-04-02 03:40:25,415 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:40:25,415 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-04-02 03:40:25,428 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 03:40:25,626 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 03:40:25,627 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:40:25,627 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:40:25,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1328470201, now seen corresponding path program 1 times [2023-04-02 03:40:25,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:40:25,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851163692] [2023-04-02 03:40:25,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:40:25,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:40:25,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:26,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:40:26,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:26,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:40:26,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:26,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:40:26,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:26,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:40:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:26,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:40:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:26,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:26,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:26,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:26,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:26,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:26,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:26,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:40:26,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:26,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:40:26,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:26,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:26,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:26,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:26,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:40:26,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:26,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 03:40:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:26,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:26,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:26,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:26,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:26,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:40:26,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:26,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 03:40:26,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:26,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:26,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:40:26,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:26,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-04-02 03:40:26,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:26,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:26,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:26,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-04-02 03:40:26,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:26,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-04-02 03:40:26,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:26,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-04-02 03:40:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:26,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-04-02 03:40:26,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:26,706 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-04-02 03:40:26,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:40:26,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851163692] [2023-04-02 03:40:26,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851163692] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 03:40:26,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170510272] [2023-04-02 03:40:26,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:40:26,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:40:26,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 03:40:26,714 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 03:40:26,717 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 03:40:27,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:27,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 2069 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 03:40:27,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 03:40:27,135 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-02 03:40:27,136 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 03:40:27,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170510272] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:40:27,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 03:40:27,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [18] total 19 [2023-04-02 03:40:27,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312521263] [2023-04-02 03:40:27,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:40:27,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 03:40:27,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:40:27,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 03:40:27,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 03:40:27,138 INFO L87 Difference]: Start difference. First operand 479 states and 650 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:40:27,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:40:27,448 INFO L93 Difference]: Finished difference Result 971 states and 1362 transitions. [2023-04-02 03:40:27,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 03:40:27,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 160 [2023-04-02 03:40:27,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:40:27,452 INFO L225 Difference]: With dead ends: 971 [2023-04-02 03:40:27,452 INFO L226 Difference]: Without dead ends: 557 [2023-04-02 03:40:27,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 201 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 03:40:27,454 INFO L413 NwaCegarLoop]: 584 mSDtfsCounter, 50 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 1156 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 03:40:27,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 1156 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 03:40:27,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2023-04-02 03:40:27,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 556. [2023-04-02 03:40:27,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 381 states have (on average 1.4776902887139107) internal successors, (563), 385 states have internal predecessors, (563), 112 states have call successors, (112), 66 states have call predecessors, (112), 62 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) [2023-04-02 03:40:27,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 782 transitions. [2023-04-02 03:40:27,851 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 782 transitions. Word has length 160 [2023-04-02 03:40:27,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:40:27,851 INFO L495 AbstractCegarLoop]: Abstraction has 556 states and 782 transitions. [2023-04-02 03:40:27,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:40:27,852 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 782 transitions. [2023-04-02 03:40:27,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-04-02 03:40:27,854 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:40:27,854 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-04-02 03:40:27,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-02 03:40:28,064 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 03:40:28,064 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:40:28,065 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:40:28,065 INFO L85 PathProgramCache]: Analyzing trace with hash 612500449, now seen corresponding path program 1 times [2023-04-02 03:40:28,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:40:28,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9055572] [2023-04-02 03:40:28,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:40:28,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:40:28,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:28,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:40:28,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:28,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:40:28,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:28,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:40:28,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:28,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:40:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:28,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:40:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:28,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:28,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:28,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:28,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:28,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:28,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:40:28,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:28,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:40:28,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:28,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:28,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:28,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:28,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:28,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:40:28,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:28,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 03:40:28,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:28,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:28,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:28,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:28,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:28,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:40:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:29,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 03:40:29,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:29,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:29,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:29,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:40:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:29,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-04-02 03:40:29,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:29,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:29,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-04-02 03:40:29,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:29,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-04-02 03:40:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:29,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-04-02 03:40:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:29,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-04-02 03:40:29,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:29,087 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-04-02 03:40:29,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:40:29,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9055572] [2023-04-02 03:40:29,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9055572] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 03:40:29,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357432720] [2023-04-02 03:40:29,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:40:29,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:40:29,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 03:40:29,091 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 03:40:29,092 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 03:40:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:29,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 03:40:29,530 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 03:40:29,568 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-02 03:40:29,569 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 03:40:29,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357432720] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:40:29,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 03:40:29,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [18] total 19 [2023-04-02 03:40:29,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993473055] [2023-04-02 03:40:29,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:40:29,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 03:40:29,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:40:29,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 03:40:29,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 03:40:29,571 INFO L87 Difference]: Start difference. First operand 556 states and 782 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:40:30,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:40:30,033 INFO L93 Difference]: Finished difference Result 1196 states and 1748 transitions. [2023-04-02 03:40:30,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 03:40:30,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 161 [2023-04-02 03:40:30,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:40:30,038 INFO L225 Difference]: With dead ends: 1196 [2023-04-02 03:40:30,038 INFO L226 Difference]: Without dead ends: 705 [2023-04-02 03:40:30,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 202 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 03:40:30,040 INFO L413 NwaCegarLoop]: 578 mSDtfsCounter, 48 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 1150 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 03:40:30,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 1150 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 03:40:30,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2023-04-02 03:40:30,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 704. [2023-04-02 03:40:30,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 501 states have (on average 1.5149700598802396) internal successors, (759), 505 states have internal predecessors, (759), 140 states have call successors, (140), 66 states have call predecessors, (140), 62 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) [2023-04-02 03:40:30,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 1034 transitions. [2023-04-02 03:40:30,412 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 1034 transitions. Word has length 161 [2023-04-02 03:40:30,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:40:30,412 INFO L495 AbstractCegarLoop]: Abstraction has 704 states and 1034 transitions. [2023-04-02 03:40:30,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:40:30,412 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 1034 transitions. [2023-04-02 03:40:30,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-04-02 03:40:30,416 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:40:30,416 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-04-02 03:40:30,427 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 03:40:30,624 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 03:40:30,624 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:40:30,625 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:40:30,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1649738777, now seen corresponding path program 1 times [2023-04-02 03:40:30,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:40:30,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689778905] [2023-04-02 03:40:30,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:40:30,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:40:30,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:31,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:40:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:31,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:40:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:31,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:40:31,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:31,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:40:31,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:31,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:40:31,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:31,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:31,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:31,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:31,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:40:31,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:31,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:40:31,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:31,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:31,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:31,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:31,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:31,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:40:31,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:31,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 03:40:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:31,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:31,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:31,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:31,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:31,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:40:31,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:31,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 03:40:31,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:31,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:31,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:31,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:40:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:31,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 03:40:31,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:31,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:31,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:31,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-04-02 03:40:31,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:31,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-04-02 03:40:31,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:31,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-04-02 03:40:31,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:31,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-04-02 03:40:31,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:31,638 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-04-02 03:40:31,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:40:31,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689778905] [2023-04-02 03:40:31,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689778905] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 03:40:31,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046784362] [2023-04-02 03:40:31,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:40:31,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:40:31,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 03:40:31,639 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 03:40:31,642 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 03:40:32,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:32,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 2079 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 03:40:32,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 03:40:32,121 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-02 03:40:32,121 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 03:40:32,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046784362] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:40:32,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 03:40:32,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [18] total 19 [2023-04-02 03:40:32,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582900595] [2023-04-02 03:40:32,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:40:32,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 03:40:32,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:40:32,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 03:40:32,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 03:40:32,123 INFO L87 Difference]: Start difference. First operand 704 states and 1034 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:40:32,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:40:32,770 INFO L93 Difference]: Finished difference Result 1628 states and 2484 transitions. [2023-04-02 03:40:32,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 03:40:32,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 162 [2023-04-02 03:40:32,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:40:32,775 INFO L225 Difference]: With dead ends: 1628 [2023-04-02 03:40:32,775 INFO L226 Difference]: Without dead ends: 989 [2023-04-02 03:40:32,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 203 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 03:40:32,777 INFO L413 NwaCegarLoop]: 578 mSDtfsCounter, 46 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 1150 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 03:40:32,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 1150 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 03:40:32,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2023-04-02 03:40:33,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 988. [2023-04-02 03:40:33,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 988 states, 733 states have (on average 1.548431105047749) internal successors, (1135), 737 states have internal predecessors, (1135), 192 states have call successors, (192), 66 states have call predecessors, (192), 62 states have return successors, (187), 187 states have call predecessors, (187), 187 states have call successors, (187) [2023-04-02 03:40:33,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1514 transitions. [2023-04-02 03:40:33,452 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1514 transitions. Word has length 162 [2023-04-02 03:40:33,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:40:33,453 INFO L495 AbstractCegarLoop]: Abstraction has 988 states and 1514 transitions. [2023-04-02 03:40:33,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:40:33,453 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1514 transitions. [2023-04-02 03:40:33,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-04-02 03:40:33,457 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:40:33,458 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-04-02 03:40:33,469 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 03:40:33,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:40:33,667 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:40:33,667 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:40:33,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1789402398, now seen corresponding path program 1 times [2023-04-02 03:40:33,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:40:33,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365840967] [2023-04-02 03:40:33,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:40:33,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:40:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:34,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:40:34,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:34,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:40:34,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:34,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:40:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:34,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:40:34,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:34,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:40:34,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:34,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:34,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:34,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:34,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:34,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:40:34,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:34,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:40:34,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:34,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:34,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:34,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:34,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:34,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:40:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:34,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 03:40:34,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:34,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:34,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:34,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:34,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:34,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:40:34,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:34,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 03:40:34,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:34,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:40:34,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:34,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 03:40:34,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:34,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:34,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:34,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:40:34,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:34,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 03:40:34,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:34,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:34,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:34,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-04-02 03:40:34,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:34,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 03:40:34,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:34,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-04-02 03:40:34,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:34,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 03:40:34,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:34,622 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-04-02 03:40:34,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:40:34,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365840967] [2023-04-02 03:40:34,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365840967] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 03:40:34,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169909328] [2023-04-02 03:40:34,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:40:34,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:40:34,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 03:40:34,627 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 03:40:34,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-04-02 03:40:35,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:35,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 2106 conjuncts, 8 conjunts are in the unsatisfiable core [2023-04-02 03:40:35,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 03:40:35,276 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-04-02 03:40:35,276 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 03:40:35,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169909328] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:40:35,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 03:40:35,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [19] total 25 [2023-04-02 03:40:35,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325511254] [2023-04-02 03:40:35,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:40:35,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 03:40:35,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:40:35,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 03:40:35,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2023-04-02 03:40:35,278 INFO L87 Difference]: Start difference. First operand 988 states and 1514 transitions. Second operand has 9 states, 7 states have (on average 13.285714285714286) internal successors, (93), 9 states have internal predecessors, (93), 6 states have call successors, (37), 3 states have call predecessors, (37), 6 states have return successors, (28), 4 states have call predecessors, (28), 6 states have call successors, (28) [2023-04-02 03:40:36,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:40:36,587 INFO L93 Difference]: Finished difference Result 1954 states and 3008 transitions. [2023-04-02 03:40:36,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 03:40:36,588 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 13.285714285714286) internal successors, (93), 9 states have internal predecessors, (93), 6 states have call successors, (37), 3 states have call predecessors, (37), 6 states have return successors, (28), 4 states have call predecessors, (28), 6 states have call successors, (28) Word has length 165 [2023-04-02 03:40:36,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:40:36,594 INFO L225 Difference]: With dead ends: 1954 [2023-04-02 03:40:36,594 INFO L226 Difference]: Without dead ends: 1002 [2023-04-02 03:40:36,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=84, Invalid=672, Unknown=0, NotChecked=0, Total=756 [2023-04-02 03:40:36,597 INFO L413 NwaCegarLoop]: 584 mSDtfsCounter, 536 mSDsluCounter, 2573 mSDsCounter, 0 mSdLazyCounter, 992 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 3157 SdHoareTripleChecker+Invalid, 995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 03:40:36,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 3157 Invalid, 995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 992 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 03:40:36,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2023-04-02 03:40:37,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 1002. [2023-04-02 03:40:37,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1002 states, 744 states have (on average 1.5483870967741935) internal successors, (1152), 749 states have internal predecessors, (1152), 192 states have call successors, (192), 68 states have call predecessors, (192), 65 states have return successors, (188), 187 states have call predecessors, (188), 187 states have call successors, (188) [2023-04-02 03:40:37,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1532 transitions. [2023-04-02 03:40:37,306 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1532 transitions. Word has length 165 [2023-04-02 03:40:37,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:40:37,307 INFO L495 AbstractCegarLoop]: Abstraction has 1002 states and 1532 transitions. [2023-04-02 03:40:37,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 13.285714285714286) internal successors, (93), 9 states have internal predecessors, (93), 6 states have call successors, (37), 3 states have call predecessors, (37), 6 states have return successors, (28), 4 states have call predecessors, (28), 6 states have call successors, (28) [2023-04-02 03:40:37,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1532 transitions. [2023-04-02 03:40:37,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-04-02 03:40:37,311 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:40:37,311 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1] [2023-04-02 03:40:37,324 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-04-02 03:40:37,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:40:37,520 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:40:37,521 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:40:37,521 INFO L85 PathProgramCache]: Analyzing trace with hash -2031799348, now seen corresponding path program 1 times [2023-04-02 03:40:37,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:40:37,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432641556] [2023-04-02 03:40:37,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:40:37,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:40:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:38,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:40:38,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:38,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:40:38,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:38,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:40:38,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:38,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:40:38,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:38,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:40:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:38,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:38,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:38,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:38,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:38,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:38,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:40:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:38,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:40:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:38,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:38,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:38,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:38,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:40:38,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:38,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 03:40:38,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:38,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:38,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:38,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:40:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:38,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 03:40:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:38,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:40:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:38,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 03:40:38,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:38,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:38,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:40:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:38,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-04-02 03:40:38,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:38,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:38,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-04-02 03:40:38,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:38,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-04-02 03:40:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:38,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-04-02 03:40:38,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:38,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-04-02 03:40:38,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:38,467 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-04-02 03:40:38,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:40:38,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432641556] [2023-04-02 03:40:38,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432641556] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 03:40:38,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135576196] [2023-04-02 03:40:38,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:40:38,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:40:38,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 03:40:38,479 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 03:40:38,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-04-02 03:40:38,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:38,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 2107 conjuncts, 6 conjunts are in the unsatisfiable core [2023-04-02 03:40:38,836 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 03:40:38,968 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-04-02 03:40:38,968 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 03:40:38,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135576196] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:40:38,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 03:40:38,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [20] total 24 [2023-04-02 03:40:38,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40216333] [2023-04-02 03:40:38,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:40:38,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 03:40:38,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:40:38,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 03:40:38,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2023-04-02 03:40:38,970 INFO L87 Difference]: Start difference. First operand 1002 states and 1532 transitions. Second operand has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 7 states have internal predecessors, (94), 4 states have call successors, (37), 3 states have call predecessors, (37), 5 states have return successors, (28), 5 states have call predecessors, (28), 4 states have call successors, (28) [2023-04-02 03:40:39,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:40:39,953 INFO L93 Difference]: Finished difference Result 1955 states and 3018 transitions. [2023-04-02 03:40:39,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 03:40:39,954 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 7 states have internal predecessors, (94), 4 states have call successors, (37), 3 states have call predecessors, (37), 5 states have return successors, (28), 5 states have call predecessors, (28), 4 states have call successors, (28) Word has length 166 [2023-04-02 03:40:39,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:40:39,959 INFO L225 Difference]: With dead ends: 1955 [2023-04-02 03:40:39,959 INFO L226 Difference]: Without dead ends: 1004 [2023-04-02 03:40:39,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-04-02 03:40:39,964 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 536 mSDsluCounter, 1581 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 2164 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 03:40:39,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 2164 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 03:40:39,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2023-04-02 03:40:40,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 1004. [2023-04-02 03:40:40,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 745 states have (on average 1.5476510067114093) internal successors, (1153), 751 states have internal predecessors, (1153), 192 states have call successors, (192), 68 states have call predecessors, (192), 66 states have return successors, (190), 187 states have call predecessors, (190), 187 states have call successors, (190) [2023-04-02 03:40:40,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 1535 transitions. [2023-04-02 03:40:40,566 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 1535 transitions. Word has length 166 [2023-04-02 03:40:40,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:40:40,567 INFO L495 AbstractCegarLoop]: Abstraction has 1004 states and 1535 transitions. [2023-04-02 03:40:40,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 7 states have internal predecessors, (94), 4 states have call successors, (37), 3 states have call predecessors, (37), 5 states have return successors, (28), 5 states have call predecessors, (28), 4 states have call successors, (28) [2023-04-02 03:40:40,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 1535 transitions. [2023-04-02 03:40:40,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-04-02 03:40:40,571 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:40:40,571 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 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, 1, 1, 1] [2023-04-02 03:40:40,581 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-04-02 03:40:40,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:40:40,781 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:40:40,782 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:40:40,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1661040610, now seen corresponding path program 1 times [2023-04-02 03:40:40,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:40:40,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837852344] [2023-04-02 03:40:40,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:40:40,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:40:40,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:41,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:40:41,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:41,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:40:41,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:41,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:40:41,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:41,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:40:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:41,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:40:41,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:41,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:41,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:41,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:41,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:41,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:41,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:40:41,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:41,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:40:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:41,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:41,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:41,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:41,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:40:41,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:41,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 03:40:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:41,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:41,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:41,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:41,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:41,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:40:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:41,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-04-02 03:40:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:41,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:40:41,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:41,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 03:40:41,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:41,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:41,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:40:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:41,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-04-02 03:40:41,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:41,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:41,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:41,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-04-02 03:40:41,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:41,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 03:40:41,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:41,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-04-02 03:40:41,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:41,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-04-02 03:40:41,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:41,701 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-04-02 03:40:41,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:40:41,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837852344] [2023-04-02 03:40:41,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837852344] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:40:41,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:40:41,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 03:40:41,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410610152] [2023-04-02 03:40:41,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:40:41,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 03:40:41,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:40:41,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 03:40:41,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2023-04-02 03:40:41,705 INFO L87 Difference]: Start difference. First operand 1004 states and 1535 transitions. Second operand has 19 states, 16 states have (on average 5.5) internal successors, (88), 9 states have internal predecessors, (88), 7 states have call successors, (37), 12 states have call predecessors, (37), 5 states have return successors, (28), 4 states have call predecessors, (28), 7 states have call successors, (28) [2023-04-02 03:40:54,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:40:54,041 INFO L93 Difference]: Finished difference Result 4595 states and 8001 transitions. [2023-04-02 03:40:54,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-04-02 03:40:54,042 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 5.5) internal successors, (88), 9 states have internal predecessors, (88), 7 states have call successors, (37), 12 states have call predecessors, (37), 5 states have return successors, (28), 4 states have call predecessors, (28), 7 states have call successors, (28) Word has length 167 [2023-04-02 03:40:54,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:40:54,061 INFO L225 Difference]: With dead ends: 4595 [2023-04-02 03:40:54,061 INFO L226 Difference]: Without dead ends: 3650 [2023-04-02 03:40:54,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=588, Invalid=2168, Unknown=0, NotChecked=0, Total=2756 [2023-04-02 03:40:54,066 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4152 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 6837 mSolverCounterSat, 2008 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4155 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 8845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2008 IncrementalHoareTripleChecker+Valid, 6837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2023-04-02 03:40:54,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4155 Valid, 81 Invalid, 8845 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2008 Valid, 6837 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2023-04-02 03:40:54,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3650 states. [2023-04-02 03:40:54,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3650 to 1014. [2023-04-02 03:40:54,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1014 states, 754 states have (on average 1.5450928381962865) internal successors, (1165), 759 states have internal predecessors, (1165), 192 states have call successors, (192), 70 states have call predecessors, (192), 67 states have return successors, (189), 187 states have call predecessors, (189), 187 states have call successors, (189) [2023-04-02 03:40:54,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1546 transitions. [2023-04-02 03:40:54,817 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1546 transitions. Word has length 167 [2023-04-02 03:40:54,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:40:54,817 INFO L495 AbstractCegarLoop]: Abstraction has 1014 states and 1546 transitions. [2023-04-02 03:40:54,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 5.5) internal successors, (88), 9 states have internal predecessors, (88), 7 states have call successors, (37), 12 states have call predecessors, (37), 5 states have return successors, (28), 4 states have call predecessors, (28), 7 states have call successors, (28) [2023-04-02 03:40:54,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1546 transitions. [2023-04-02 03:40:54,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-04-02 03:40:54,822 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:40:54,822 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 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, 1, 1] [2023-04-02 03:40:54,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 03:40:54,823 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:40:54,823 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:40:54,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1517819584, now seen corresponding path program 2 times [2023-04-02 03:40:54,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:40:54,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590742059] [2023-04-02 03:40:54,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:40:54,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:40:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:55,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:40:55,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:55,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:40:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:55,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:40:55,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:55,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:40:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:55,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:40:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:55,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:55,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:55,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:55,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:55,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:55,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:55,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:40:55,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:55,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:40:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:55,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:55,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:55,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:55,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:40:55,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:55,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 03:40:55,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:55,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:55,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:55,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:55,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:55,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:40:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:55,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 03:40:55,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:55,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:40:55,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:55,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-04-02 03:40:55,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:55,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:55,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:55,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:40:55,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:55,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-04-02 03:40:55,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:55,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:40:55,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:55,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-04-02 03:40:55,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:55,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-04-02 03:40:55,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:55,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-04-02 03:40:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:55,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-04-02 03:40:55,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:40:55,746 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-04-02 03:40:55,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:40:55,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590742059] [2023-04-02 03:40:55,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590742059] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:40:55,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:40:55,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-04-02 03:40:55,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212163269] [2023-04-02 03:40:55,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:40:55,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-04-02 03:40:55,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:40:55,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-04-02 03:40:55,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2023-04-02 03:40:55,748 INFO L87 Difference]: Start difference. First operand 1014 states and 1546 transitions. Second operand has 20 states, 17 states have (on average 5.411764705882353) internal successors, (92), 9 states have internal predecessors, (92), 6 states have call successors, (37), 12 states have call predecessors, (37), 5 states have return successors, (28), 4 states have call predecessors, (28), 6 states have call successors, (28) [2023-04-02 03:41:09,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:41:09,824 INFO L93 Difference]: Finished difference Result 4597 states and 8006 transitions. [2023-04-02 03:41:09,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-04-02 03:41:09,829 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 5.411764705882353) internal successors, (92), 9 states have internal predecessors, (92), 6 states have call successors, (37), 12 states have call predecessors, (37), 5 states have return successors, (28), 4 states have call predecessors, (28), 6 states have call successors, (28) Word has length 168 [2023-04-02 03:41:09,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:41:09,848 INFO L225 Difference]: With dead ends: 4597 [2023-04-02 03:41:09,848 INFO L226 Difference]: Without dead ends: 3663 [2023-04-02 03:41:09,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 659 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=620, Invalid=2460, Unknown=0, NotChecked=0, Total=3080 [2023-04-02 03:41:09,853 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 1920 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 7975 mSolverCounterSat, 992 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1923 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 8967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 992 IncrementalHoareTripleChecker+Valid, 7975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2023-04-02 03:41:09,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1923 Valid, 92 Invalid, 8967 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [992 Valid, 7975 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2023-04-02 03:41:09,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3663 states. [2023-04-02 03:41:10,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3663 to 1019. [2023-04-02 03:41:10,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 756 states have (on average 1.5436507936507937) internal successors, (1167), 762 states have internal predecessors, (1167), 193 states have call successors, (193), 70 states have call predecessors, (193), 69 states have return successors, (192), 189 states have call predecessors, (192), 188 states have call successors, (192) [2023-04-02 03:41:10,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1552 transitions. [2023-04-02 03:41:10,603 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1552 transitions. Word has length 168 [2023-04-02 03:41:10,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:41:10,604 INFO L495 AbstractCegarLoop]: Abstraction has 1019 states and 1552 transitions. [2023-04-02 03:41:10,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 5.411764705882353) internal successors, (92), 9 states have internal predecessors, (92), 6 states have call successors, (37), 12 states have call predecessors, (37), 5 states have return successors, (28), 4 states have call predecessors, (28), 6 states have call successors, (28) [2023-04-02 03:41:10,604 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1552 transitions. [2023-04-02 03:41:10,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-04-02 03:41:10,608 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:41:10,608 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1] [2023-04-02 03:41:10,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 03:41:10,608 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:41:10,609 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:41:10,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1801659875, now seen corresponding path program 1 times [2023-04-02 03:41:10,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:41:10,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452881879] [2023-04-02 03:41:10,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:41:10,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:41:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:11,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:41:11,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:11,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:41:11,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:11,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:41:11,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:11,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:41:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:11,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:41:11,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:11,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:11,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:11,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:11,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:11,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:11,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:41:11,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:11,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:41:11,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:11,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:11,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:11,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:11,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:41:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:11,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 03:41:11,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:11,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:11,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:11,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:11,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:11,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:41:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:11,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 03:41:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:11,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:41:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:11,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-04-02 03:41:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:11,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:11,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:41:11,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:11,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-02 03:41:11,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:11,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:11,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:11,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-04-02 03:41:11,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:11,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-04-02 03:41:11,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:11,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-04-02 03:41:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:11,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-04-02 03:41:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:11,532 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-04-02 03:41:11,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:41:11,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452881879] [2023-04-02 03:41:11,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452881879] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:41:11,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:41:11,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-04-02 03:41:11,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435986879] [2023-04-02 03:41:11,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:41:11,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-04-02 03:41:11,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:41:11,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-04-02 03:41:11,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2023-04-02 03:41:11,535 INFO L87 Difference]: Start difference. First operand 1019 states and 1552 transitions. Second operand has 20 states, 17 states have (on average 5.470588235294118) internal successors, (93), 9 states have internal predecessors, (93), 6 states have call successors, (37), 12 states have call predecessors, (37), 5 states have return successors, (28), 4 states have call predecessors, (28), 6 states have call successors, (28) [2023-04-02 03:41:25,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:41:25,485 INFO L93 Difference]: Finished difference Result 4597 states and 8005 transitions. [2023-04-02 03:41:25,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-04-02 03:41:25,493 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 5.470588235294118) internal successors, (93), 9 states have internal predecessors, (93), 6 states have call successors, (37), 12 states have call predecessors, (37), 5 states have return successors, (28), 4 states have call predecessors, (28), 6 states have call successors, (28) Word has length 169 [2023-04-02 03:41:25,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:41:25,512 INFO L225 Difference]: With dead ends: 4597 [2023-04-02 03:41:25,512 INFO L226 Difference]: Without dead ends: 3663 [2023-04-02 03:41:25,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 657 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=620, Invalid=2460, Unknown=0, NotChecked=0, Total=3080 [2023-04-02 03:41:25,517 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 3151 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 8264 mSolverCounterSat, 1449 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3154 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 9713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1449 IncrementalHoareTripleChecker+Valid, 8264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-04-02 03:41:25,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3154 Valid, 88 Invalid, 9713 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1449 Valid, 8264 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2023-04-02 03:41:25,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3663 states. [2023-04-02 03:41:26,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3663 to 1019. [2023-04-02 03:41:26,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 756 states have (on average 1.5436507936507937) internal successors, (1167), 762 states have internal predecessors, (1167), 193 states have call successors, (193), 70 states have call predecessors, (193), 69 states have return successors, (192), 189 states have call predecessors, (192), 188 states have call successors, (192) [2023-04-02 03:41:26,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1552 transitions. [2023-04-02 03:41:26,298 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1552 transitions. Word has length 169 [2023-04-02 03:41:26,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:41:26,298 INFO L495 AbstractCegarLoop]: Abstraction has 1019 states and 1552 transitions. [2023-04-02 03:41:26,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 5.470588235294118) internal successors, (93), 9 states have internal predecessors, (93), 6 states have call successors, (37), 12 states have call predecessors, (37), 5 states have return successors, (28), 4 states have call predecessors, (28), 6 states have call successors, (28) [2023-04-02 03:41:26,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1552 transitions. [2023-04-02 03:41:26,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-04-02 03:41:26,302 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:41:26,302 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1] [2023-04-02 03:41:26,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 03:41:26,302 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:41:26,303 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:41:26,303 INFO L85 PathProgramCache]: Analyzing trace with hash 494517477, now seen corresponding path program 1 times [2023-04-02 03:41:26,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:41:26,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890937053] [2023-04-02 03:41:26,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:41:26,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:41:26,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:26,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:41:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:26,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:41:26,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:26,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:41:26,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:26,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:41:26,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:26,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:41:26,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:26,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:26,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:26,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:26,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:26,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:26,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:26,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:41:26,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:26,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:41:26,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:26,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:26,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:26,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:26,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:26,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:41:26,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:26,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 03:41:26,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:26,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:26,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:26,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:27,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:41:27,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:27,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 03:41:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:27,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:41:27,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:27,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-04-02 03:41:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:27,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:27,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:27,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:41:27,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:27,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-02 03:41:27,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:27,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:27,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:27,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-04-02 03:41:27,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:27,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-04-02 03:41:27,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:27,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-04-02 03:41:27,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:27,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-04-02 03:41:27,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:27,144 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-04-02 03:41:27,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:41:27,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890937053] [2023-04-02 03:41:27,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890937053] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:41:27,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:41:27,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-04-02 03:41:27,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814641306] [2023-04-02 03:41:27,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:41:27,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-04-02 03:41:27,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:41:27,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-04-02 03:41:27,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2023-04-02 03:41:27,146 INFO L87 Difference]: Start difference. First operand 1019 states and 1552 transitions. Second operand has 20 states, 17 states have (on average 5.470588235294118) internal successors, (93), 9 states have internal predecessors, (93), 6 states have call successors, (37), 12 states have call predecessors, (37), 5 states have return successors, (28), 4 states have call predecessors, (28), 6 states have call successors, (28) [2023-04-02 03:41:42,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:41:42,768 INFO L93 Difference]: Finished difference Result 4586 states and 7985 transitions. [2023-04-02 03:41:42,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-04-02 03:41:42,768 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 5.470588235294118) internal successors, (93), 9 states have internal predecessors, (93), 6 states have call successors, (37), 12 states have call predecessors, (37), 5 states have return successors, (28), 4 states have call predecessors, (28), 6 states have call successors, (28) Word has length 169 [2023-04-02 03:41:42,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:41:42,786 INFO L225 Difference]: With dead ends: 4586 [2023-04-02 03:41:42,786 INFO L226 Difference]: Without dead ends: 3652 [2023-04-02 03:41:42,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 790 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=736, Invalid=2686, Unknown=0, NotChecked=0, Total=3422 [2023-04-02 03:41:42,791 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4088 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 8072 mSolverCounterSat, 1920 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4091 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 9992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1920 IncrementalHoareTripleChecker+Valid, 8072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-04-02 03:41:42,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4091 Valid, 90 Invalid, 9992 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1920 Valid, 8072 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-04-02 03:41:42,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3652 states. [2023-04-02 03:41:43,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3652 to 1014. [2023-04-02 03:41:43,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1014 states, 754 states have (on average 1.5450928381962865) internal successors, (1165), 759 states have internal predecessors, (1165), 192 states have call successors, (192), 70 states have call predecessors, (192), 67 states have return successors, (188), 187 states have call predecessors, (188), 187 states have call successors, (188) [2023-04-02 03:41:43,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1545 transitions. [2023-04-02 03:41:43,743 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1545 transitions. Word has length 169 [2023-04-02 03:41:43,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:41:43,744 INFO L495 AbstractCegarLoop]: Abstraction has 1014 states and 1545 transitions. [2023-04-02 03:41:43,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 5.470588235294118) internal successors, (93), 9 states have internal predecessors, (93), 6 states have call successors, (37), 12 states have call predecessors, (37), 5 states have return successors, (28), 4 states have call predecessors, (28), 6 states have call successors, (28) [2023-04-02 03:41:43,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1545 transitions. [2023-04-02 03:41:43,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-04-02 03:41:43,747 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:41:43,747 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 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, 1] [2023-04-02 03:41:43,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 03:41:43,747 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:41:43,748 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:41:43,748 INFO L85 PathProgramCache]: Analyzing trace with hash -915182704, now seen corresponding path program 3 times [2023-04-02 03:41:43,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:41:43,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757563253] [2023-04-02 03:41:43,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:41:43,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:41:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:44,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:41:44,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:44,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:41:44,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:44,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:41:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:44,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:41:44,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:44,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:41:44,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:44,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:44,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:44,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:44,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:44,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:44,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:41:44,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:44,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:41:44,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:44,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:44,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:44,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:44,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:41:44,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:44,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 03:41:44,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:44,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:44,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:44,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:44,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:44,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:41:44,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:44,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 03:41:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:44,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:41:44,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:44,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-04-02 03:41:44,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:44,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:44,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:41:44,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:44,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-02 03:41:44,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:44,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:44,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:44,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-04-02 03:41:44,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:44,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-04-02 03:41:44,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:44,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-04-02 03:41:44,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:44,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-04-02 03:41:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:44,651 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-04-02 03:41:44,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:41:44,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757563253] [2023-04-02 03:41:44,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757563253] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:41:44,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:41:44,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 03:41:44,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981343149] [2023-04-02 03:41:44,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:41:44,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 03:41:44,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:41:44,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 03:41:44,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2023-04-02 03:41:44,652 INFO L87 Difference]: Start difference. First operand 1014 states and 1545 transitions. Second operand has 19 states, 16 states have (on average 5.5625) internal successors, (89), 9 states have internal predecessors, (89), 7 states have call successors, (37), 12 states have call predecessors, (37), 5 states have return successors, (28), 4 states have call predecessors, (28), 7 states have call successors, (28) [2023-04-02 03:41:57,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:41:57,587 INFO L93 Difference]: Finished difference Result 4593 states and 7995 transitions. [2023-04-02 03:41:57,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-04-02 03:41:57,588 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 5.5625) internal successors, (89), 9 states have internal predecessors, (89), 7 states have call successors, (37), 12 states have call predecessors, (37), 5 states have return successors, (28), 4 states have call predecessors, (28), 7 states have call successors, (28) Word has length 169 [2023-04-02 03:41:57,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:41:57,606 INFO L225 Difference]: With dead ends: 4593 [2023-04-02 03:41:57,607 INFO L226 Difference]: Without dead ends: 3652 [2023-04-02 03:41:57,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 589 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=588, Invalid=2168, Unknown=0, NotChecked=0, Total=2756 [2023-04-02 03:41:57,612 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 3719 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 6772 mSolverCounterSat, 1868 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3722 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 8640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1868 IncrementalHoareTripleChecker+Valid, 6772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-04-02 03:41:57,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3722 Valid, 81 Invalid, 8640 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1868 Valid, 6772 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2023-04-02 03:41:57,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3652 states. [2023-04-02 03:41:58,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3652 to 1014. [2023-04-02 03:41:58,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1014 states, 754 states have (on average 1.5437665782493368) internal successors, (1164), 759 states have internal predecessors, (1164), 192 states have call successors, (192), 70 states have call predecessors, (192), 67 states have return successors, (188), 187 states have call predecessors, (188), 187 states have call successors, (188) [2023-04-02 03:41:58,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1544 transitions. [2023-04-02 03:41:58,480 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1544 transitions. Word has length 169 [2023-04-02 03:41:58,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:41:58,480 INFO L495 AbstractCegarLoop]: Abstraction has 1014 states and 1544 transitions. [2023-04-02 03:41:58,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 5.5625) internal successors, (89), 9 states have internal predecessors, (89), 7 states have call successors, (37), 12 states have call predecessors, (37), 5 states have return successors, (28), 4 states have call predecessors, (28), 7 states have call successors, (28) [2023-04-02 03:41:58,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1544 transitions. [2023-04-02 03:41:58,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-04-02 03:41:58,482 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:41:58,483 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1] [2023-04-02 03:41:58,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 03:41:58,483 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:41:58,483 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:41:58,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1090534579, now seen corresponding path program 2 times [2023-04-02 03:41:58,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:41:58,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663262043] [2023-04-02 03:41:58,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:41:58,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:41:58,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:59,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:41:59,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:59,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:41:59,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:59,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:41:59,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:59,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:41:59,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:59,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:41:59,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:59,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:59,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:59,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:59,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:59,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:41:59,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:59,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:41:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:59,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:59,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:59,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:59,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:59,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:41:59,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:59,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 03:41:59,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:59,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:59,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:59,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:59,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:59,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:41:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:59,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 03:41:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:59,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:41:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:59,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-04-02 03:41:59,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:59,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:59,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:41:59,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:59,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-04-02 03:41:59,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:59,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:41:59,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:59,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-04-02 03:41:59,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:59,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-04-02 03:41:59,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:59,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-04-02 03:41:59,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:59,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-04-02 03:41:59,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:41:59,331 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-04-02 03:41:59,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:41:59,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663262043] [2023-04-02 03:41:59,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663262043] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:41:59,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:41:59,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-04-02 03:41:59,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214302300] [2023-04-02 03:41:59,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:41:59,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-04-02 03:41:59,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:41:59,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-04-02 03:41:59,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2023-04-02 03:41:59,333 INFO L87 Difference]: Start difference. First operand 1014 states and 1544 transitions. Second operand has 20 states, 17 states have (on average 5.529411764705882) internal successors, (94), 9 states have internal predecessors, (94), 6 states have call successors, (37), 12 states have call predecessors, (37), 5 states have return successors, (28), 4 states have call predecessors, (28), 6 states have call successors, (28) [2023-04-02 03:42:13,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:42:13,506 INFO L93 Difference]: Finished difference Result 4592 states and 7993 transitions. [2023-04-02 03:42:13,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-04-02 03:42:13,506 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 5.529411764705882) internal successors, (94), 9 states have internal predecessors, (94), 6 states have call successors, (37), 12 states have call predecessors, (37), 5 states have return successors, (28), 4 states have call predecessors, (28), 6 states have call successors, (28) Word has length 170 [2023-04-02 03:42:13,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:42:13,519 INFO L225 Difference]: With dead ends: 4592 [2023-04-02 03:42:13,520 INFO L226 Difference]: Without dead ends: 3658 [2023-04-02 03:42:13,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=587, Invalid=2275, Unknown=0, NotChecked=0, Total=2862 [2023-04-02 03:42:13,525 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2600 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 8302 mSolverCounterSat, 1270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2603 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 9572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1270 IncrementalHoareTripleChecker+Valid, 8302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-04-02 03:42:13,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2603 Valid, 92 Invalid, 9572 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1270 Valid, 8302 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-04-02 03:42:13,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3658 states. [2023-04-02 03:42:14,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3658 to 1021. [2023-04-02 03:42:14,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 757 states have (on average 1.5416116248348746) internal successors, (1167), 764 states have internal predecessors, (1167), 193 states have call successors, (193), 70 states have call predecessors, (193), 70 states have return successors, (194), 189 states have call predecessors, (194), 188 states have call successors, (194) [2023-04-02 03:42:14,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1554 transitions. [2023-04-02 03:42:14,463 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1554 transitions. Word has length 170 [2023-04-02 03:42:14,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:42:14,463 INFO L495 AbstractCegarLoop]: Abstraction has 1021 states and 1554 transitions. [2023-04-02 03:42:14,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 5.529411764705882) internal successors, (94), 9 states have internal predecessors, (94), 6 states have call successors, (37), 12 states have call predecessors, (37), 5 states have return successors, (28), 4 states have call predecessors, (28), 6 states have call successors, (28) [2023-04-02 03:42:14,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1554 transitions. [2023-04-02 03:42:14,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-04-02 03:42:14,466 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:42:14,466 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1] [2023-04-02 03:42:14,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 03:42:14,466 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:42:14,466 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:42:14,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1337724043, now seen corresponding path program 2 times [2023-04-02 03:42:14,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:42:14,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248774201] [2023-04-02 03:42:14,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:42:14,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:42:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:15,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:42:15,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:15,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:42:15,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:15,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:42:15,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:15,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:42:15,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:15,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:42:15,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:15,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:42:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:15,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:42:15,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:15,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:42:15,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:15,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:42:15,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:15,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:42:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:15,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:42:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:15,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:42:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:15,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:42:15,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:15,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 03:42:15,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:15,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:42:15,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:15,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:42:15,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:15,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:42:15,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:15,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 03:42:15,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:15,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:42:15,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:15,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-04-02 03:42:15,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:15,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:42:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:15,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:42:15,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:15,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-04-02 03:42:15,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:15,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:42:15,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:15,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-04-02 03:42:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:15,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-04-02 03:42:15,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:15,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-04-02 03:42:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:15,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-04-02 03:42:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:15,364 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-04-02 03:42:15,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:42:15,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248774201] [2023-04-02 03:42:15,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248774201] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:42:15,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:42:15,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-04-02 03:42:15,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9597914] [2023-04-02 03:42:15,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:42:15,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-04-02 03:42:15,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:42:15,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-04-02 03:42:15,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2023-04-02 03:42:15,366 INFO L87 Difference]: Start difference. First operand 1021 states and 1554 transitions. Second operand has 20 states, 17 states have (on average 5.529411764705882) internal successors, (94), 9 states have internal predecessors, (94), 6 states have call successors, (37), 12 states have call predecessors, (37), 5 states have return successors, (28), 4 states have call predecessors, (28), 6 states have call successors, (28) [2023-04-02 03:42:31,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:42:31,803 INFO L93 Difference]: Finished difference Result 4594 states and 7995 transitions. [2023-04-02 03:42:31,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-04-02 03:42:31,804 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 5.529411764705882) internal successors, (94), 9 states have internal predecessors, (94), 6 states have call successors, (37), 12 states have call predecessors, (37), 5 states have return successors, (28), 4 states have call predecessors, (28), 6 states have call successors, (28) Word has length 170 [2023-04-02 03:42:31,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:42:31,814 INFO L225 Difference]: With dead ends: 4594 [2023-04-02 03:42:31,814 INFO L226 Difference]: Without dead ends: 3658 [2023-04-02 03:42:31,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 791 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=736, Invalid=2686, Unknown=0, NotChecked=0, Total=3422 [2023-04-02 03:42:31,819 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2651 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 8101 mSolverCounterSat, 1305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2654 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 9406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1305 IncrementalHoareTripleChecker+Valid, 8101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-04-02 03:42:31,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2654 Valid, 90 Invalid, 9406 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1305 Valid, 8101 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-04-02 03:42:31,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3658 states. [2023-04-02 03:42:32,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3658 to 1016. [2023-04-02 03:42:32,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 755 states have (on average 1.5430463576158941) internal successors, (1165), 761 states have internal predecessors, (1165), 192 states have call successors, (192), 70 states have call predecessors, (192), 68 states have return successors, (190), 187 states have call predecessors, (190), 187 states have call successors, (190) [2023-04-02 03:42:32,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1547 transitions. [2023-04-02 03:42:32,897 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1547 transitions. Word has length 170 [2023-04-02 03:42:32,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:42:32,898 INFO L495 AbstractCegarLoop]: Abstraction has 1016 states and 1547 transitions. [2023-04-02 03:42:32,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 5.529411764705882) internal successors, (94), 9 states have internal predecessors, (94), 6 states have call successors, (37), 12 states have call predecessors, (37), 5 states have return successors, (28), 4 states have call predecessors, (28), 6 states have call successors, (28) [2023-04-02 03:42:32,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1547 transitions. [2023-04-02 03:42:32,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-04-02 03:42:32,900 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:42:32,900 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:42:32,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-04-02 03:42:32,901 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:42:32,901 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:42:32,901 INFO L85 PathProgramCache]: Analyzing trace with hash -306719426, now seen corresponding path program 1 times [2023-04-02 03:42:32,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:42:32,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450079876] [2023-04-02 03:42:32,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:42:32,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:42:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:33,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:42:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:33,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:42:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:33,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:42:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:33,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:42:33,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:33,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:42:33,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:33,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:42:33,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:33,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:42:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:33,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:42:33,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:33,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:42:33,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:33,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:42:33,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:33,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:42:33,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:33,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:42:33,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:33,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:42:33,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:33,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 03:42:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:33,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:42:33,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:33,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:42:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:33,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:42:33,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:33,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 03:42:33,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:33,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:42:33,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:33,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 03:42:33,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:33,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:42:33,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:33,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:42:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:33,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 03:42:33,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:33,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:42:33,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:33,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 03:42:33,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:33,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-04-02 03:42:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:33,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-04-02 03:42:33,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:33,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-04-02 03:42:33,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:33,663 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-04-02 03:42:33,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:42:33,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450079876] [2023-04-02 03:42:33,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450079876] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:42:33,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:42:33,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 03:42:33,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851176413] [2023-04-02 03:42:33,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:42:33,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 03:42:33,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:42:33,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 03:42:33,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2023-04-02 03:42:33,665 INFO L87 Difference]: Start difference. First operand 1016 states and 1547 transitions. Second operand has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 7 states have internal predecessors, (90), 5 states have call successors, (37), 13 states have call predecessors, (37), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2023-04-02 03:42:45,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:42:45,644 INFO L93 Difference]: Finished difference Result 4579 states and 8014 transitions. [2023-04-02 03:42:45,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-04-02 03:42:45,645 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 7 states have internal predecessors, (90), 5 states have call successors, (37), 13 states have call predecessors, (37), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) Word has length 171 [2023-04-02 03:42:45,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:42:45,653 INFO L225 Difference]: With dead ends: 4579 [2023-04-02 03:42:45,653 INFO L226 Difference]: Without dead ends: 3650 [2023-04-02 03:42:45,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=402, Invalid=1158, Unknown=0, NotChecked=0, Total=1560 [2023-04-02 03:42:45,659 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 3320 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 4392 mSolverCounterSat, 1615 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3320 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 6007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1615 IncrementalHoareTripleChecker+Valid, 4392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-04-02 03:42:45,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3320 Valid, 47 Invalid, 6007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1615 Valid, 4392 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-04-02 03:42:45,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3650 states. [2023-04-02 03:42:46,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3650 to 1016. [2023-04-02 03:42:46,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 755 states have (on average 1.5417218543046358) internal successors, (1164), 761 states have internal predecessors, (1164), 192 states have call successors, (192), 70 states have call predecessors, (192), 68 states have return successors, (190), 187 states have call predecessors, (190), 187 states have call successors, (190) [2023-04-02 03:42:46,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1546 transitions. [2023-04-02 03:42:46,739 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1546 transitions. Word has length 171 [2023-04-02 03:42:46,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:42:46,740 INFO L495 AbstractCegarLoop]: Abstraction has 1016 states and 1546 transitions. [2023-04-02 03:42:46,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 7 states have internal predecessors, (90), 5 states have call successors, (37), 13 states have call predecessors, (37), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2023-04-02 03:42:46,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1546 transitions. [2023-04-02 03:42:46,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-04-02 03:42:46,743 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:42:46,743 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1] [2023-04-02 03:42:46,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-04-02 03:42:46,743 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:42:46,744 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:42:46,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1292906019, now seen corresponding path program 1 times [2023-04-02 03:42:46,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:42:46,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663232293] [2023-04-02 03:42:46,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:42:46,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:42:46,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:47,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:42:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:47,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:42:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:47,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:42:47,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:47,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:42:47,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:47,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:42:47,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:47,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:42:47,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:47,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:42:47,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:47,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:42:47,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:47,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:42:47,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:47,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:42:47,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:47,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:42:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:47,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:42:47,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:47,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:42:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:47,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 03:42:47,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:47,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:42:47,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:47,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:42:47,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:47,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:42:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:47,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-04-02 03:42:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:47,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:42:47,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:47,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:42:47,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:47,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-02 03:42:47,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:47,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:42:47,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:47,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-04-02 03:42:47,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:47,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-04-02 03:42:47,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:47,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-04-02 03:42:47,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:47,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-04-02 03:42:47,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:42:47,353 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-04-02 03:42:47,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:42:47,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663232293] [2023-04-02 03:42:47,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663232293] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:42:47,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:42:47,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 03:42:47,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105882809] [2023-04-02 03:42:47,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:42:47,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 03:42:47,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:42:47,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 03:42:47,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-04-02 03:42:47,355 INFO L87 Difference]: Start difference. First operand 1016 states and 1546 transitions. Second operand has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (35), 11 states have call predecessors, (35), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:42:59,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:42:59,044 INFO L93 Difference]: Finished difference Result 5026 states and 8803 transitions. [2023-04-02 03:42:59,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 03:42:59,045 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (35), 11 states have call predecessors, (35), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 169 [2023-04-02 03:42:59,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:42:59,056 INFO L225 Difference]: With dead ends: 5026 [2023-04-02 03:42:59,057 INFO L226 Difference]: Without dead ends: 4099 [2023-04-02 03:42:59,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=211, Invalid=439, Unknown=0, NotChecked=0, Total=650 [2023-04-02 03:42:59,063 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2465 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 2403 mSolverCounterSat, 1041 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2493 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 3444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1041 IncrementalHoareTripleChecker+Valid, 2403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-04-02 03:42:59,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2493 Valid, 28 Invalid, 3444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1041 Valid, 2403 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-04-02 03:42:59,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4099 states. [2023-04-02 03:43:00,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4099 to 1560. [2023-04-02 03:43:00,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1560 states, 1203 states have (on average 1.5660847880299251) internal successors, (1884), 1209 states have internal predecessors, (1884), 288 states have call successors, (288), 70 states have call predecessors, (288), 68 states have return successors, (286), 283 states have call predecessors, (286), 283 states have call successors, (286) [2023-04-02 03:43:00,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1560 states to 1560 states and 2458 transitions. [2023-04-02 03:43:00,950 INFO L78 Accepts]: Start accepts. Automaton has 1560 states and 2458 transitions. Word has length 169 [2023-04-02 03:43:00,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:43:00,950 INFO L495 AbstractCegarLoop]: Abstraction has 1560 states and 2458 transitions. [2023-04-02 03:43:00,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (35), 11 states have call predecessors, (35), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 03:43:00,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1560 states and 2458 transitions. [2023-04-02 03:43:00,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-04-02 03:43:00,954 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:43:00,954 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:43:00,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-04-02 03:43:00,955 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:43:00,955 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:43:00,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1561445420, now seen corresponding path program 1 times [2023-04-02 03:43:00,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:43:00,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858478875] [2023-04-02 03:43:00,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:43:00,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:43:00,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:01,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:43:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:01,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:43:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:01,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:43:01,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:01,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:43:01,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:01,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:43:01,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:01,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:43:01,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:01,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:43:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:01,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:43:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:01,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:43:01,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:01,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:43:01,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:01,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:43:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:01,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:43:01,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:01,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:43:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:01,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 03:43:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:01,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:43:01,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:01,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:43:01,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:01,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:43:01,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:01,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 03:43:01,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:01,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:43:01,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:01,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-04-02 03:43:01,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:01,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:43:01,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:01,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:43:01,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:01,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-04-02 03:43:01,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:01,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:43:01,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:01,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-04-02 03:43:01,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:01,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-04-02 03:43:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:01,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 03:43:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:01,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-04-02 03:43:01,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:01,669 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-04-02 03:43:01,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:43:01,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858478875] [2023-04-02 03:43:01,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858478875] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 03:43:01,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344503266] [2023-04-02 03:43:01,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:43:01,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:43:01,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 03:43:01,670 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 03:43:01,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-04-02 03:43:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:02,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 2113 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 03:43:02,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 03:43:02,047 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-04-02 03:43:02,048 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 03:43:02,220 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-04-02 03:43:02,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344503266] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 03:43:02,221 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 03:43:02,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 4, 4] total 17 [2023-04-02 03:43:02,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343004583] [2023-04-02 03:43:02,221 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 03:43:02,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 03:43:02,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:43:02,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 03:43:02,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2023-04-02 03:43:02,223 INFO L87 Difference]: Start difference. First operand 1560 states and 2458 transitions. Second operand has 17 states, 17 states have (on average 8.411764705882353) internal successors, (143), 7 states have internal predecessors, (143), 5 states have call successors, (68), 12 states have call predecessors, (68), 2 states have return successors, (39), 4 states have call predecessors, (39), 5 states have call successors, (39) [2023-04-02 03:43:24,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:43:24,328 INFO L93 Difference]: Finished difference Result 9636 states and 17330 transitions. [2023-04-02 03:43:24,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-04-02 03:43:24,328 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 8.411764705882353) internal successors, (143), 7 states have internal predecessors, (143), 5 states have call successors, (68), 12 states have call predecessors, (68), 2 states have return successors, (39), 4 states have call predecessors, (39), 5 states have call successors, (39) Word has length 172 [2023-04-02 03:43:24,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:43:24,358 INFO L225 Difference]: With dead ends: 9636 [2023-04-02 03:43:24,358 INFO L226 Difference]: Without dead ends: 9431 [2023-04-02 03:43:24,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 394 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=597, Invalid=1473, Unknown=0, NotChecked=0, Total=2070 [2023-04-02 03:43:24,364 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 5122 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 3521 mSolverCounterSat, 2109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5147 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 5630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2109 IncrementalHoareTripleChecker+Valid, 3521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-04-02 03:43:24,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5147 Valid, 30 Invalid, 5630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2109 Valid, 3521 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-04-02 03:43:24,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9431 states. [2023-04-02 03:43:27,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9431 to 2509. [2023-04-02 03:43:27,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2509 states, 1975 states have (on average 1.5427848101265822) internal successors, (3047), 1981 states have internal predecessors, (3047), 465 states have call successors, (465), 70 states have call predecessors, (465), 68 states have return successors, (463), 460 states have call predecessors, (463), 460 states have call successors, (463) [2023-04-02 03:43:27,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2509 states to 2509 states and 3975 transitions. [2023-04-02 03:43:27,840 INFO L78 Accepts]: Start accepts. Automaton has 2509 states and 3975 transitions. Word has length 172 [2023-04-02 03:43:27,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:43:27,841 INFO L495 AbstractCegarLoop]: Abstraction has 2509 states and 3975 transitions. [2023-04-02 03:43:27,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 8.411764705882353) internal successors, (143), 7 states have internal predecessors, (143), 5 states have call successors, (68), 12 states have call predecessors, (68), 2 states have return successors, (39), 4 states have call predecessors, (39), 5 states have call successors, (39) [2023-04-02 03:43:27,842 INFO L276 IsEmpty]: Start isEmpty. Operand 2509 states and 3975 transitions. [2023-04-02 03:43:27,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-04-02 03:43:27,848 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:43:27,848 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:43:27,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-04-02 03:43:28,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-04-02 03:43:28,049 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:43:28,050 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:43:28,050 INFO L85 PathProgramCache]: Analyzing trace with hash -653865346, now seen corresponding path program 1 times [2023-04-02 03:43:28,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:43:28,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071629698] [2023-04-02 03:43:28,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:43:28,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:43:28,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:28,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:43:28,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:28,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:43:28,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:28,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:43:28,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:28,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:43:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:28,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:43:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:28,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:43:28,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:28,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:43:28,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:28,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:43:28,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:28,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:43:28,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:28,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:43:28,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:28,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:43:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:28,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:43:28,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:28,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:43:28,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:28,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 03:43:28,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:28,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:43:28,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:28,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:43:28,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:28,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:43:28,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:28,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-04-02 03:43:28,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:28,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:43:28,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:28,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:43:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:28,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-04-02 03:43:28,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:28,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:43:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:28,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-04-02 03:43:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:28,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-04-02 03:43:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:28,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 03:43:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:28,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-04-02 03:43:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:43:28,727 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-04-02 03:43:28,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:43:28,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071629698] [2023-04-02 03:43:28,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071629698] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:43:28,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:43:28,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 03:43:28,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632709028] [2023-04-02 03:43:28,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:43:28,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 03:43:28,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:43:28,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 03:43:28,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-04-02 03:43:28,729 INFO L87 Difference]: Start difference. First operand 2509 states and 3975 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, (35), 11 states have call predecessors, (35), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26)