./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec1_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec1_product32.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 23422b93e8eb894b39d133f7e6eb45372f0db0df72df3fa3f3890b8e90f2fd0e --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 14:54:15,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 14:54:15,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 14:54:15,771 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 14:54:15,772 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 14:54:15,776 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 14:54:15,777 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 14:54:15,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 14:54:15,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 14:54:15,789 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 14:54:15,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 14:54:15,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 14:54:15,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 14:54:15,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 14:54:15,794 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 14:54:15,795 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 14:54:15,798 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 14:54:15,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 14:54:15,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 14:54:15,802 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 14:54:15,805 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 14:54:15,806 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 14:54:15,807 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 14:54:15,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 14:54:15,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 14:54:15,812 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 14:54:15,812 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 14:54:15,813 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 14:54:15,814 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 14:54:15,814 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 14:54:15,814 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 14:54:15,815 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 14:54:15,816 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 14:54:15,817 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 14:54:15,818 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 14:54:15,818 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 14:54:15,819 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 14:54:15,819 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 14:54:15,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 14:54:15,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 14:54:15,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 14:54:15,821 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 14:54:15,852 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 14:54:15,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 14:54:15,853 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 14:54:15,853 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 14:54:15,854 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 14:54:15,854 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 14:54:15,854 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 14:54:15,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 14:54:15,855 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 14:54:15,855 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 14:54:15,856 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 14:54:15,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 14:54:15,856 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 14:54:15,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 14:54:15,856 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 14:54:15,856 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 14:54:15,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 14:54:15,857 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 14:54:15,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 14:54:15,857 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 14:54:15,857 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 14:54:15,857 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 14:54:15,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 14:54:15,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 14:54:15,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 14:54:15,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 14:54:15,858 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 14:54:15,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 14:54:15,859 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 14:54:15,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 14:54:15,860 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 14:54:15,860 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 14:54:15,860 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 14:54:15,860 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 14:54:15,860 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23422b93e8eb894b39d133f7e6eb45372f0db0df72df3fa3f3890b8e90f2fd0e [2021-12-17 14:54:16,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 14:54:16,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 14:54:16,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 14:54:16,094 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 14:54:16,094 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 14:54:16,095 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec1_product32.cil.c [2021-12-17 14:54:16,154 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7649dd75d/7e2b1b6253f047efbf2742cd64657ee1/FLAGec74e635c [2021-12-17 14:54:16,533 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 14:54:16,533 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec1_product32.cil.c [2021-12-17 14:54:16,566 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7649dd75d/7e2b1b6253f047efbf2742cd64657ee1/FLAGec74e635c [2021-12-17 14:54:16,894 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7649dd75d/7e2b1b6253f047efbf2742cd64657ee1 [2021-12-17 14:54:16,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 14:54:16,896 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 14:54:16,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 14:54:16,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 14:54:16,908 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 14:54:16,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 02:54:16" (1/1) ... [2021-12-17 14:54:16,910 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7772b8ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:54:16, skipping insertion in model container [2021-12-17 14:54:16,910 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 02:54:16" (1/1) ... [2021-12-17 14:54:16,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 14:54:16,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 14:54:17,425 WARN L230 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_spec1_product32.cil.c[65472,65485] [2021-12-17 14:54:17,428 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 14:54:17,436 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 14:54:17,517 WARN L230 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_spec1_product32.cil.c[65472,65485] [2021-12-17 14:54:17,518 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 14:54:17,543 INFO L208 MainTranslator]: Completed translation [2021-12-17 14:54:17,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:54:17 WrapperNode [2021-12-17 14:54:17,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 14:54:17,544 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 14:54:17,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 14:54:17,544 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 14:54:17,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:54:17" (1/1) ... [2021-12-17 14:54:17,583 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:54:17" (1/1) ... [2021-12-17 14:54:17,639 INFO L137 Inliner]: procedures = 134, calls = 237, calls flagged for inlining = 61, calls inlined = 53, statements flattened = 987 [2021-12-17 14:54:17,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 14:54:17,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 14:54:17,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 14:54:17,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 14:54:17,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:54:17" (1/1) ... [2021-12-17 14:54:17,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:54:17" (1/1) ... [2021-12-17 14:54:17,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:54:17" (1/1) ... [2021-12-17 14:54:17,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:54:17" (1/1) ... [2021-12-17 14:54:17,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:54:17" (1/1) ... [2021-12-17 14:54:17,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:54:17" (1/1) ... [2021-12-17 14:54:17,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:54:17" (1/1) ... [2021-12-17 14:54:17,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 14:54:17,716 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 14:54:17,716 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 14:54:17,716 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 14:54:17,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:54:17" (1/1) ... [2021-12-17 14:54:17,722 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 14:54:17,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 14:54:17,769 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) [2021-12-17 14:54:17,774 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 [2021-12-17 14:54:17,795 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-12-17 14:54:17,795 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-12-17 14:54:17,795 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-17 14:54:17,796 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-17 14:54:17,796 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-12-17 14:54:17,796 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-12-17 14:54:17,796 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-17 14:54:17,796 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-17 14:54:17,797 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-12-17 14:54:17,797 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-12-17 14:54:17,797 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-17 14:54:17,797 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-17 14:54:17,797 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2021-12-17 14:54:17,797 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2021-12-17 14:54:17,797 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-17 14:54:17,797 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-17 14:54:17,797 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-12-17 14:54:17,798 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-12-17 14:54:17,798 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-17 14:54:17,798 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-17 14:54:17,798 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-12-17 14:54:17,798 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-12-17 14:54:17,798 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-12-17 14:54:17,798 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-12-17 14:54:17,798 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-17 14:54:17,799 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-17 14:54:17,799 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-17 14:54:17,799 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-12-17 14:54:17,799 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-12-17 14:54:17,799 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-17 14:54:17,799 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-17 14:54:17,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 14:54:17,799 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-12-17 14:54:17,799 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-12-17 14:54:17,800 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2021-12-17 14:54:17,800 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2021-12-17 14:54:17,800 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-17 14:54:17,800 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-17 14:54:17,800 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-17 14:54:17,800 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-17 14:54:17,800 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-17 14:54:17,801 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-17 14:54:17,801 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-17 14:54:17,801 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-17 14:54:17,801 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2021-12-17 14:54:17,801 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2021-12-17 14:54:17,801 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-17 14:54:17,801 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-17 14:54:17,801 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-12-17 14:54:17,802 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-12-17 14:54:17,802 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-17 14:54:17,802 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-17 14:54:17,802 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-17 14:54:17,802 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-17 14:54:17,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 14:54:17,803 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-17 14:54:17,804 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-17 14:54:17,804 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-17 14:54:17,805 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-17 14:54:17,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 14:54:17,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 14:54:18,005 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 14:54:18,007 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 14:54:18,497 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 14:54:18,510 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 14:54:18,510 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-17 14:54:18,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 02:54:18 BoogieIcfgContainer [2021-12-17 14:54:18,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 14:54:18,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 14:54:18,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 14:54:18,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 14:54:18,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 02:54:16" (1/3) ... [2021-12-17 14:54:18,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa5c6db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 02:54:18, skipping insertion in model container [2021-12-17 14:54:18,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:54:17" (2/3) ... [2021-12-17 14:54:18,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa5c6db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 02:54:18, skipping insertion in model container [2021-12-17 14:54:18,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 02:54:18" (3/3) ... [2021-12-17 14:54:18,521 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec1_product32.cil.c [2021-12-17 14:54:18,525 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 14:54:18,525 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 14:54:18,565 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 14:54:18,570 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 14:54:18,570 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 14:54:18,597 INFO L276 IsEmpty]: Start isEmpty. Operand has 425 states, 330 states have (on average 1.5515151515151515) internal successors, (512), 335 states have internal predecessors, (512), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2021-12-17 14:54:18,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-17 14:54:18,608 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:54:18,609 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:54:18,609 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:54:18,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:54:18,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1920042768, now seen corresponding path program 1 times [2021-12-17 14:54:18,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:54:18,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073222173] [2021-12-17 14:54:18,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:54:18,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:54:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:18,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:54:18,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:18,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:54:18,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:18,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:54:18,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:18,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 14:54:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:18,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 14:54:18,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:18,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 14:54:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:18,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-17 14:54:18,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:18,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-17 14:54:18,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:18,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-17 14:54:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:18,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-17 14:54:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:18,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-17 14:54:18,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:19,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-17 14:54:19,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:19,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-17 14:54:19,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:19,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-17 14:54:19,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:19,011 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-17 14:54:19,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:54:19,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073222173] [2021-12-17 14:54:19,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073222173] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 14:54:19,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27387711] [2021-12-17 14:54:19,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:54:19,013 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:54:19,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 14:54:19,015 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) [2021-12-17 14:54:19,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 14:54:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:19,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 1146 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-17 14:54:19,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 14:54:19,394 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-17 14:54:19,394 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 14:54:19,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27387711] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:54:19,395 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 14:54:19,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-12-17 14:54:19,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019113651] [2021-12-17 14:54:19,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:54:19,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 14:54:19,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:54:19,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 14:54:19,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 14:54:19,421 INFO L87 Difference]: Start difference. First operand has 425 states, 330 states have (on average 1.5515151515151515) internal successors, (512), 335 states have internal predecessors, (512), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 14:54:19,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:54:19,475 INFO L93 Difference]: Finished difference Result 657 states and 974 transitions. [2021-12-17 14:54:19,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 14:54:19,477 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 110 [2021-12-17 14:54:19,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:54:19,488 INFO L225 Difference]: With dead ends: 657 [2021-12-17 14:54:19,488 INFO L226 Difference]: Without dead ends: 418 [2021-12-17 14:54:19,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 14:54:19,497 INFO L933 BasicCegarLoop]: 638 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 14:54:19,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 14:54:19,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2021-12-17 14:54:19,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2021-12-17 14:54:19,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 324 states have (on average 1.5462962962962963) internal successors, (501), 328 states have internal predecessors, (501), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2021-12-17 14:54:19,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 630 transitions. [2021-12-17 14:54:19,549 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 630 transitions. Word has length 110 [2021-12-17 14:54:19,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:54:19,551 INFO L470 AbstractCegarLoop]: Abstraction has 418 states and 630 transitions. [2021-12-17 14:54:19,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 14:54:19,551 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 630 transitions. [2021-12-17 14:54:19,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-17 14:54:19,555 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:54:19,555 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:54:19,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-17 14:54:19,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-12-17 14:54:19,771 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:54:19,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:54:19,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1988702151, now seen corresponding path program 1 times [2021-12-17 14:54:19,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:54:19,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576717035] [2021-12-17 14:54:19,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:54:19,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:54:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:19,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:54:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:19,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:54:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:19,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:54:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:19,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 14:54:19,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:19,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 14:54:19,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:19,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 14:54:19,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:19,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-17 14:54:19,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:19,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-17 14:54:19,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:19,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-17 14:54:19,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:19,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-17 14:54:19,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:19,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-17 14:54:19,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:19,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 14:54:19,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:19,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-17 14:54:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:19,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-17 14:54:19,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:19,924 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-17 14:54:19,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:54:19,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576717035] [2021-12-17 14:54:19,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576717035] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 14:54:19,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629277059] [2021-12-17 14:54:19,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:54:19,925 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:54:19,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 14:54:19,933 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) [2021-12-17 14:54:19,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-17 14:54:20,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:20,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 1147 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 14:54:20,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 14:54:20,267 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-17 14:54:20,267 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 14:54:20,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629277059] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:54:20,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 14:54:20,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-17 14:54:20,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002680445] [2021-12-17 14:54:20,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:54:20,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 14:54:20,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:54:20,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 14:54:20,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 14:54:20,272 INFO L87 Difference]: Start difference. First operand 418 states and 630 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 14:54:20,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:54:20,313 INFO L93 Difference]: Finished difference Result 647 states and 952 transitions. [2021-12-17 14:54:20,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 14:54:20,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 111 [2021-12-17 14:54:20,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:54:20,319 INFO L225 Difference]: With dead ends: 647 [2021-12-17 14:54:20,319 INFO L226 Difference]: Without dead ends: 421 [2021-12-17 14:54:20,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 14:54:20,324 INFO L933 BasicCegarLoop]: 628 mSDtfsCounter, 1 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1254 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 [2021-12-17 14:54:20,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1254 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 14:54:20,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-12-17 14:54:20,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 420. [2021-12-17 14:54:20,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 326 states have (on average 1.5429447852760736) internal successors, (503), 330 states have internal predecessors, (503), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2021-12-17 14:54:20,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 632 transitions. [2021-12-17 14:54:20,349 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 632 transitions. Word has length 111 [2021-12-17 14:54:20,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:54:20,349 INFO L470 AbstractCegarLoop]: Abstraction has 420 states and 632 transitions. [2021-12-17 14:54:20,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 14:54:20,350 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 632 transitions. [2021-12-17 14:54:20,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-17 14:54:20,352 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:54:20,352 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:54:20,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-17 14:54:20,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-12-17 14:54:20,572 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:54:20,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:54:20,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1245902075, now seen corresponding path program 1 times [2021-12-17 14:54:20,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:54:20,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218551033] [2021-12-17 14:54:20,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:54:20,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:54:20,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:20,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:54:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:20,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:54:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:20,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:54:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:20,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 14:54:20,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:20,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 14:54:20,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:20,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 14:54:20,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:20,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-17 14:54:20,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:20,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-17 14:54:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:20,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-17 14:54:20,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:20,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-17 14:54:20,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:20,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-17 14:54:20,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:20,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 14:54:20,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:20,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 14:54:20,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:20,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-17 14:54:20,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:20,740 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 14:54:20,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:54:20,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218551033] [2021-12-17 14:54:20,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218551033] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 14:54:20,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783454905] [2021-12-17 14:54:20,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:54:20,741 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:54:20,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 14:54:20,764 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) [2021-12-17 14:54:20,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-17 14:54:21,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:21,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 1174 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 14:54:21,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 14:54:21,314 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-17 14:54:21,314 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 14:54:21,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783454905] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:54:21,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 14:54:21,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-17 14:54:21,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989159935] [2021-12-17 14:54:21,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:54:21,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 14:54:21,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:54:21,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 14:54:21,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 14:54:21,316 INFO L87 Difference]: Start difference. First operand 420 states and 632 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 14:54:21,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:54:21,352 INFO L93 Difference]: Finished difference Result 888 states and 1356 transitions. [2021-12-17 14:54:21,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 14:54:21,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2021-12-17 14:54:21,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:54:21,355 INFO L225 Difference]: With dead ends: 888 [2021-12-17 14:54:21,371 INFO L226 Difference]: Without dead ends: 495 [2021-12-17 14:54:21,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 14:54:21,374 INFO L933 BasicCegarLoop]: 655 mSDtfsCounter, 134 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1238 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 [2021-12-17 14:54:21,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 1238 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 14:54:21,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2021-12-17 14:54:21,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 487. [2021-12-17 14:54:21,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 379 states have (on average 1.562005277044855) internal successors, (592), 383 states have internal predecessors, (592), 79 states have call successors, (79), 28 states have call predecessors, (79), 28 states have return successors, (78), 77 states have call predecessors, (78), 78 states have call successors, (78) [2021-12-17 14:54:21,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 749 transitions. [2021-12-17 14:54:21,404 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 749 transitions. Word has length 120 [2021-12-17 14:54:21,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:54:21,404 INFO L470 AbstractCegarLoop]: Abstraction has 487 states and 749 transitions. [2021-12-17 14:54:21,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 14:54:21,405 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 749 transitions. [2021-12-17 14:54:21,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-17 14:54:21,407 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:54:21,407 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:54:21,426 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-17 14:54:21,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:54:21,608 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:54:21,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:54:21,608 INFO L85 PathProgramCache]: Analyzing trace with hash -625115686, now seen corresponding path program 1 times [2021-12-17 14:54:21,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:54:21,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321653533] [2021-12-17 14:54:21,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:54:21,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:54:21,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:21,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:54:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:21,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:54:21,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:21,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:54:21,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:21,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 14:54:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:21,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 14:54:21,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:21,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 14:54:21,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:21,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 14:54:21,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:21,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-17 14:54:21,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:21,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-17 14:54:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:21,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-17 14:54:21,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:21,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-17 14:54:21,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:21,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-17 14:54:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:21,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-17 14:54:21,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:21,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-17 14:54:21,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:21,754 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 14:54:21,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:54:21,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321653533] [2021-12-17 14:54:21,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321653533] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 14:54:21,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210653065] [2021-12-17 14:54:21,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:54:21,763 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:54:21,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 14:54:21,765 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) [2021-12-17 14:54:21,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-17 14:54:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:21,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 1181 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-17 14:54:21,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 14:54:22,183 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-17 14:54:22,183 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 14:54:22,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210653065] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:54:22,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 14:54:22,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-17 14:54:22,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907384481] [2021-12-17 14:54:22,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:54:22,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 14:54:22,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:54:22,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 14:54:22,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 14:54:22,187 INFO L87 Difference]: Start difference. First operand 487 states and 749 transitions. Second operand has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-17 14:54:22,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:54:22,264 INFO L93 Difference]: Finished difference Result 965 states and 1488 transitions. [2021-12-17 14:54:22,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 14:54:22,265 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 121 [2021-12-17 14:54:22,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:54:22,269 INFO L225 Difference]: With dead ends: 965 [2021-12-17 14:54:22,269 INFO L226 Difference]: Without dead ends: 489 [2021-12-17 14:54:22,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:54:22,273 INFO L933 BasicCegarLoop]: 621 mSDtfsCounter, 152 mSDsluCounter, 1689 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2310 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 14:54:22,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 2310 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 14:54:22,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2021-12-17 14:54:22,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2021-12-17 14:54:22,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 380 states have (on average 1.5605263157894738) internal successors, (593), 385 states have internal predecessors, (593), 79 states have call successors, (79), 28 states have call predecessors, (79), 29 states have return successors, (80), 77 states have call predecessors, (80), 78 states have call successors, (80) [2021-12-17 14:54:22,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 752 transitions. [2021-12-17 14:54:22,312 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 752 transitions. Word has length 121 [2021-12-17 14:54:22,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:54:22,313 INFO L470 AbstractCegarLoop]: Abstraction has 489 states and 752 transitions. [2021-12-17 14:54:22,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-17 14:54:22,315 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 752 transitions. [2021-12-17 14:54:22,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-17 14:54:22,323 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:54:22,323 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:54:22,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-17 14:54:22,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:54:22,531 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:54:22,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:54:22,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1495995839, now seen corresponding path program 1 times [2021-12-17 14:54:22,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:54:22,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662327180] [2021-12-17 14:54:22,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:54:22,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:54:22,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:22,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:54:22,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:22,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:54:22,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:22,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:54:22,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:22,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:54:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:22,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-17 14:54:22,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:22,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-17 14:54:22,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:22,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-17 14:54:22,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:22,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-17 14:54:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:22,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-17 14:54:22,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:22,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-17 14:54:22,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:22,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-17 14:54:22,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:22,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-17 14:54:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:22,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-17 14:54:22,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:22,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-17 14:54:22,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:22,698 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-17 14:54:22,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:54:22,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662327180] [2021-12-17 14:54:22,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662327180] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 14:54:22,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094841990] [2021-12-17 14:54:22,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:54:22,699 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:54:22,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 14:54:22,700 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) [2021-12-17 14:54:22,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-17 14:54:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:22,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 1182 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-17 14:54:22,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 14:54:23,054 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-17 14:54:23,055 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 14:54:23,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094841990] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:54:23,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 14:54:23,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-17 14:54:23,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850946897] [2021-12-17 14:54:23,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:54:23,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 14:54:23,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:54:23,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 14:54:23,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-12-17 14:54:23,056 INFO L87 Difference]: Start difference. First operand 489 states and 752 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-17 14:54:23,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:54:23,103 INFO L93 Difference]: Finished difference Result 967 states and 1493 transitions. [2021-12-17 14:54:23,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 14:54:23,103 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 122 [2021-12-17 14:54:23,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:54:23,106 INFO L225 Difference]: With dead ends: 967 [2021-12-17 14:54:23,106 INFO L226 Difference]: Without dead ends: 491 [2021-12-17 14:54:23,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-12-17 14:54:23,109 INFO L933 BasicCegarLoop]: 619 mSDtfsCounter, 151 mSDsluCounter, 1680 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2299 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 14:54:23,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 2299 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 14:54:23,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2021-12-17 14:54:23,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2021-12-17 14:54:23,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 381 states have (on average 1.5590551181102361) internal successors, (594), 387 states have internal predecessors, (594), 79 states have call successors, (79), 28 states have call predecessors, (79), 30 states have return successors, (85), 77 states have call predecessors, (85), 78 states have call successors, (85) [2021-12-17 14:54:23,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 758 transitions. [2021-12-17 14:54:23,134 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 758 transitions. Word has length 122 [2021-12-17 14:54:23,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:54:23,134 INFO L470 AbstractCegarLoop]: Abstraction has 491 states and 758 transitions. [2021-12-17 14:54:23,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-17 14:54:23,134 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 758 transitions. [2021-12-17 14:54:23,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-17 14:54:23,137 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:54:23,137 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:54:23,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-17 14:54:23,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:54:23,352 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:54:23,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:54:23,353 INFO L85 PathProgramCache]: Analyzing trace with hash -20354496, now seen corresponding path program 1 times [2021-12-17 14:54:23,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:54:23,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167365762] [2021-12-17 14:54:23,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:54:23,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:54:23,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:23,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:54:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:23,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:54:23,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:23,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:54:23,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:23,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:54:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:23,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:54:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:23,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 14:54:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:23,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-17 14:54:23,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:23,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-17 14:54:23,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:23,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-17 14:54:23,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:23,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-17 14:54:23,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:23,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-17 14:54:23,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:23,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-17 14:54:23,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:23,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-17 14:54:23,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:23,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-17 14:54:23,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:23,465 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 14:54:23,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:54:23,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167365762] [2021-12-17 14:54:23,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167365762] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:54:23,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:54:23,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 14:54:23,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597258711] [2021-12-17 14:54:23,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:54:23,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 14:54:23,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:54:23,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 14:54:23,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 14:54:23,467 INFO L87 Difference]: Start difference. First operand 491 states and 758 transitions. Second operand has 9 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-17 14:54:24,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:54:24,904 INFO L93 Difference]: Finished difference Result 1093 states and 1709 transitions. [2021-12-17 14:54:24,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-17 14:54:24,904 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 123 [2021-12-17 14:54:24,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:54:24,909 INFO L225 Difference]: With dead ends: 1093 [2021-12-17 14:54:24,910 INFO L226 Difference]: Without dead ends: 625 [2021-12-17 14:54:24,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-17 14:54:24,912 INFO L933 BasicCegarLoop]: 687 mSDtfsCounter, 1559 mSDsluCounter, 1258 mSDsCounter, 0 mSdLazyCounter, 2032 mSolverCounterSat, 549 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1579 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 2581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 549 IncrementalHoareTripleChecker+Valid, 2032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 14:54:24,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1579 Valid, 1945 Invalid, 2581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [549 Valid, 2032 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 14:54:24,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2021-12-17 14:54:24,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 491. [2021-12-17 14:54:24,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 381 states have (on average 1.5590551181102361) internal successors, (594), 387 states have internal predecessors, (594), 79 states have call successors, (79), 28 states have call predecessors, (79), 30 states have return successors, (84), 77 states have call predecessors, (84), 78 states have call successors, (84) [2021-12-17 14:54:24,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 757 transitions. [2021-12-17 14:54:24,946 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 757 transitions. Word has length 123 [2021-12-17 14:54:24,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:54:24,946 INFO L470 AbstractCegarLoop]: Abstraction has 491 states and 757 transitions. [2021-12-17 14:54:24,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-17 14:54:24,946 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 757 transitions. [2021-12-17 14:54:24,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-17 14:54:24,948 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:54:24,948 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:54:24,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 14:54:24,949 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:54:24,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:54:24,949 INFO L85 PathProgramCache]: Analyzing trace with hash -2021439229, now seen corresponding path program 2 times [2021-12-17 14:54:24,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:54:24,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664981428] [2021-12-17 14:54:24,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:54:24,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:54:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:24,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:54:24,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:25,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:54:25,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:25,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:54:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:25,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:54:25,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:25,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:54:25,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:25,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-17 14:54:25,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:25,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-17 14:54:25,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:25,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-17 14:54:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:25,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 14:54:25,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:25,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-17 14:54:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:25,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-17 14:54:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:25,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-17 14:54:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:25,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-17 14:54:25,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:25,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-17 14:54:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:25,064 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 14:54:25,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:54:25,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664981428] [2021-12-17 14:54:25,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664981428] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:54:25,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:54:25,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 14:54:25,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330205766] [2021-12-17 14:54:25,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:54:25,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 14:54:25,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:54:25,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 14:54:25,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 14:54:25,067 INFO L87 Difference]: Start difference. First operand 491 states and 757 transitions. Second operand has 9 states, 8 states have (on average 10.25) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-17 14:54:26,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:54:26,398 INFO L93 Difference]: Finished difference Result 1095 states and 1712 transitions. [2021-12-17 14:54:26,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-17 14:54:26,398 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 124 [2021-12-17 14:54:26,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:54:26,403 INFO L225 Difference]: With dead ends: 1095 [2021-12-17 14:54:26,404 INFO L226 Difference]: Without dead ends: 627 [2021-12-17 14:54:26,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-17 14:54:26,407 INFO L933 BasicCegarLoop]: 689 mSDtfsCounter, 1554 mSDsluCounter, 1258 mSDsCounter, 0 mSdLazyCounter, 2020 mSolverCounterSat, 579 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1574 SdHoareTripleChecker+Valid, 1947 SdHoareTripleChecker+Invalid, 2599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 579 IncrementalHoareTripleChecker+Valid, 2020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-17 14:54:26,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1574 Valid, 1947 Invalid, 2599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [579 Valid, 2020 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-17 14:54:26,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2021-12-17 14:54:26,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 493. [2021-12-17 14:54:26,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 382 states have (on average 1.557591623036649) internal successors, (595), 389 states have internal predecessors, (595), 79 states have call successors, (79), 28 states have call predecessors, (79), 31 states have return successors, (86), 77 states have call predecessors, (86), 78 states have call successors, (86) [2021-12-17 14:54:26,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 760 transitions. [2021-12-17 14:54:26,428 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 760 transitions. Word has length 124 [2021-12-17 14:54:26,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:54:26,429 INFO L470 AbstractCegarLoop]: Abstraction has 493 states and 760 transitions. [2021-12-17 14:54:26,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-17 14:54:26,429 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 760 transitions. [2021-12-17 14:54:26,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-17 14:54:26,431 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:54:26,431 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:54:26,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 14:54:26,431 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:54:26,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:54:26,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1557390427, now seen corresponding path program 1 times [2021-12-17 14:54:26,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:54:26,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477192538] [2021-12-17 14:54:26,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:54:26,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:54:26,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:26,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:54:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:26,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:54:26,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:26,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:54:26,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:26,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:54:26,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:26,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:54:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:26,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:54:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:26,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-17 14:54:26,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:26,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 14:54:26,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:26,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-17 14:54:26,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:26,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-17 14:54:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:26,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-17 14:54:26,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:26,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-17 14:54:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:26,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-17 14:54:26,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:26,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-17 14:54:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:26,569 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-17 14:54:26,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:54:26,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477192538] [2021-12-17 14:54:26,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477192538] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:54:26,570 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:54:26,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 14:54:26,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053133368] [2021-12-17 14:54:26,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:54:26,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 14:54:26,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:54:26,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 14:54:26,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-17 14:54:26,571 INFO L87 Difference]: Start difference. First operand 493 states and 760 transitions. Second operand has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2021-12-17 14:54:28,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:54:28,501 INFO L93 Difference]: Finished difference Result 1093 states and 1707 transitions. [2021-12-17 14:54:28,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 14:54:28,502 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 125 [2021-12-17 14:54:28,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:54:28,505 INFO L225 Difference]: With dead ends: 1093 [2021-12-17 14:54:28,505 INFO L226 Difference]: Without dead ends: 627 [2021-12-17 14:54:28,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-17 14:54:28,507 INFO L933 BasicCegarLoop]: 684 mSDtfsCounter, 1685 mSDsluCounter, 1878 mSDsCounter, 0 mSdLazyCounter, 3729 mSolverCounterSat, 613 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1685 SdHoareTripleChecker+Valid, 2562 SdHoareTripleChecker+Invalid, 4342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 613 IncrementalHoareTripleChecker+Valid, 3729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 14:54:28,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1685 Valid, 2562 Invalid, 4342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [613 Valid, 3729 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 14:54:28,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2021-12-17 14:54:28,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 493. [2021-12-17 14:54:28,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 382 states have (on average 1.557591623036649) internal successors, (595), 389 states have internal predecessors, (595), 79 states have call successors, (79), 28 states have call predecessors, (79), 31 states have return successors, (85), 77 states have call predecessors, (85), 78 states have call successors, (85) [2021-12-17 14:54:28,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 759 transitions. [2021-12-17 14:54:28,527 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 759 transitions. Word has length 125 [2021-12-17 14:54:28,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:54:28,527 INFO L470 AbstractCegarLoop]: Abstraction has 493 states and 759 transitions. [2021-12-17 14:54:28,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2021-12-17 14:54:28,527 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 759 transitions. [2021-12-17 14:54:28,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-12-17 14:54:28,530 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:54:28,530 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:54:28,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 14:54:28,530 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:54:28,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:54:28,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1919225920, now seen corresponding path program 2 times [2021-12-17 14:54:28,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:54:28,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866911787] [2021-12-17 14:54:28,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:54:28,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:54:28,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:28,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:54:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:28,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:54:28,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:28,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:54:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:28,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:54:28,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:28,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:54:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:28,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:54:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:28,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-17 14:54:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:28,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-17 14:54:28,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:28,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-17 14:54:28,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:28,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 14:54:28,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:28,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 14:54:28,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:28,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-17 14:54:28,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:28,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-17 14:54:28,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:28,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-17 14:54:28,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:28,662 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-17 14:54:28,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:54:28,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866911787] [2021-12-17 14:54:28,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866911787] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:54:28,662 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:54:28,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 14:54:28,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460216385] [2021-12-17 14:54:28,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:54:28,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 14:54:28,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:54:28,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 14:54:28,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-17 14:54:28,665 INFO L87 Difference]: Start difference. First operand 493 states and 759 transitions. Second operand has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2021-12-17 14:54:30,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:54:30,587 INFO L93 Difference]: Finished difference Result 1095 states and 1713 transitions. [2021-12-17 14:54:30,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 14:54:30,588 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 126 [2021-12-17 14:54:30,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:54:30,591 INFO L225 Difference]: With dead ends: 1095 [2021-12-17 14:54:30,591 INFO L226 Difference]: Without dead ends: 629 [2021-12-17 14:54:30,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-17 14:54:30,592 INFO L933 BasicCegarLoop]: 677 mSDtfsCounter, 1686 mSDsluCounter, 1855 mSDsCounter, 0 mSdLazyCounter, 3723 mSolverCounterSat, 617 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1686 SdHoareTripleChecker+Valid, 2532 SdHoareTripleChecker+Invalid, 4340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 617 IncrementalHoareTripleChecker+Valid, 3723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 14:54:30,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1686 Valid, 2532 Invalid, 4340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [617 Valid, 3723 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 14:54:30,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2021-12-17 14:54:30,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 495. [2021-12-17 14:54:30,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 383 states have (on average 1.556135770234987) internal successors, (596), 391 states have internal predecessors, (596), 79 states have call successors, (79), 28 states have call predecessors, (79), 32 states have return successors, (90), 77 states have call predecessors, (90), 78 states have call successors, (90) [2021-12-17 14:54:30,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 765 transitions. [2021-12-17 14:54:30,611 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 765 transitions. Word has length 126 [2021-12-17 14:54:30,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:54:30,612 INFO L470 AbstractCegarLoop]: Abstraction has 495 states and 765 transitions. [2021-12-17 14:54:30,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2021-12-17 14:54:30,612 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 765 transitions. [2021-12-17 14:54:30,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-17 14:54:30,613 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:54:30,614 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:54:30,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-17 14:54:30,614 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:54:30,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:54:30,614 INFO L85 PathProgramCache]: Analyzing trace with hash 913432522, now seen corresponding path program 1 times [2021-12-17 14:54:30,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:54:30,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949763714] [2021-12-17 14:54:30,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:54:30,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:54:30,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:30,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:54:30,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:30,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:54:30,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:30,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:54:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:30,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:54:30,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:30,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:54:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:30,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:54:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:30,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-17 14:54:30,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:30,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-17 14:54:30,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:30,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-17 14:54:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:30,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-17 14:54:30,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:30,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-17 14:54:30,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:30,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-17 14:54:30,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:30,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-17 14:54:30,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:30,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-17 14:54:30,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:30,715 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-17 14:54:30,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:54:30,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949763714] [2021-12-17 14:54:30,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949763714] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 14:54:30,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979972065] [2021-12-17 14:54:30,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:54:30,715 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:54:30,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 14:54:30,716 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) [2021-12-17 14:54:30,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-17 14:54:30,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:30,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 1187 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 14:54:30,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 14:54:31,141 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 14:54:31,141 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 14:54:31,339 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 14:54:31,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979972065] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 14:54:31,339 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 14:54:31,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2021-12-17 14:54:31,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359677224] [2021-12-17 14:54:31,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 14:54:31,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-17 14:54:31,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:54:31,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-17 14:54:31,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-12-17 14:54:31,341 INFO L87 Difference]: Start difference. First operand 495 states and 765 transitions. Second operand has 15 states, 14 states have (on average 10.285714285714286) internal successors, (144), 11 states have internal predecessors, (144), 4 states have call successors, (34), 6 states have call predecessors, (34), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2021-12-17 14:54:34,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:54:34,593 INFO L93 Difference]: Finished difference Result 1954 states and 3271 transitions. [2021-12-17 14:54:34,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-17 14:54:34,593 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.285714285714286) internal successors, (144), 11 states have internal predecessors, (144), 4 states have call successors, (34), 6 states have call predecessors, (34), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 127 [2021-12-17 14:54:34,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:54:34,599 INFO L225 Difference]: With dead ends: 1954 [2021-12-17 14:54:34,600 INFO L226 Difference]: Without dead ends: 1490 [2021-12-17 14:54:34,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2021-12-17 14:54:34,602 INFO L933 BasicCegarLoop]: 928 mSDtfsCounter, 3341 mSDsluCounter, 4794 mSDsCounter, 0 mSdLazyCounter, 6612 mSolverCounterSat, 1401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3343 SdHoareTripleChecker+Valid, 5722 SdHoareTripleChecker+Invalid, 8013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1401 IncrementalHoareTripleChecker+Valid, 6612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-12-17 14:54:34,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3343 Valid, 5722 Invalid, 8013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1401 Valid, 6612 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-12-17 14:54:34,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1490 states. [2021-12-17 14:54:34,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1490 to 913. [2021-12-17 14:54:34,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 722 states have (on average 1.6094182825484764) internal successors, (1162), 730 states have internal predecessors, (1162), 158 states have call successors, (158), 28 states have call predecessors, (158), 32 states have return successors, (179), 156 states have call predecessors, (179), 157 states have call successors, (179) [2021-12-17 14:54:34,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1499 transitions. [2021-12-17 14:54:34,658 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1499 transitions. Word has length 127 [2021-12-17 14:54:34,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:54:34,658 INFO L470 AbstractCegarLoop]: Abstraction has 913 states and 1499 transitions. [2021-12-17 14:54:34,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.285714285714286) internal successors, (144), 11 states have internal predecessors, (144), 4 states have call successors, (34), 6 states have call predecessors, (34), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2021-12-17 14:54:34,659 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1499 transitions. [2021-12-17 14:54:34,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-17 14:54:34,662 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:54:34,662 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:54:34,681 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-17 14:54:34,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:54:34,879 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:54:34,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:54:34,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1163883698, now seen corresponding path program 1 times [2021-12-17 14:54:34,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:54:34,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335193278] [2021-12-17 14:54:34,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:54:34,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:54:34,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:34,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:54:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:34,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:54:34,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:34,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:54:34,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:34,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:54:34,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:34,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:54:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:34,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:54:34,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:34,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 14:54:34,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:34,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-17 14:54:34,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:34,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-17 14:54:34,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:34,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-17 14:54:34,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:34,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-17 14:54:34,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:34,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-17 14:54:34,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:34,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-17 14:54:34,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:34,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-17 14:54:34,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:34,970 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 14:54:34,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:54:34,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335193278] [2021-12-17 14:54:34,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335193278] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:54:34,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:54:34,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:54:34,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020815323] [2021-12-17 14:54:34,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:54:34,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:54:34,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:54:34,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:54:34,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:54:34,972 INFO L87 Difference]: Start difference. First operand 913 states and 1499 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 14:54:36,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:54:36,282 INFO L93 Difference]: Finished difference Result 2280 states and 3839 transitions. [2021-12-17 14:54:36,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:54:36,282 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2021-12-17 14:54:36,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:54:36,290 INFO L225 Difference]: With dead ends: 2280 [2021-12-17 14:54:36,290 INFO L226 Difference]: Without dead ends: 1445 [2021-12-17 14:54:36,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:54:36,299 INFO L933 BasicCegarLoop]: 734 mSDtfsCounter, 1549 mSDsluCounter, 924 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 635 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1567 SdHoareTripleChecker+Valid, 1658 SdHoareTripleChecker+Invalid, 1677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 635 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-17 14:54:36,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1567 Valid, 1658 Invalid, 1677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [635 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-17 14:54:36,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2021-12-17 14:54:36,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1303. [2021-12-17 14:54:36,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 1033 states have (on average 1.628267182962246) internal successors, (1682), 1041 states have internal predecessors, (1682), 237 states have call successors, (237), 28 states have call predecessors, (237), 32 states have return successors, (268), 235 states have call predecessors, (268), 236 states have call successors, (268) [2021-12-17 14:54:36,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 2187 transitions. [2021-12-17 14:54:36,367 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 2187 transitions. Word has length 130 [2021-12-17 14:54:36,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:54:36,367 INFO L470 AbstractCegarLoop]: Abstraction has 1303 states and 2187 transitions. [2021-12-17 14:54:36,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 14:54:36,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 2187 transitions. [2021-12-17 14:54:36,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-17 14:54:36,372 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:54:36,372 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:54:36,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-17 14:54:36,373 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:54:36,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:54:36,373 INFO L85 PathProgramCache]: Analyzing trace with hash 2014115342, now seen corresponding path program 1 times [2021-12-17 14:54:36,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:54:36,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347453986] [2021-12-17 14:54:36,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:54:36,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:54:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:36,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:54:36,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:36,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:54:36,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:36,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:54:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:36,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:54:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:36,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:54:36,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:36,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:54:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:36,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-17 14:54:36,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:36,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-17 14:54:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:36,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-17 14:54:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:36,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-17 14:54:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:36,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-17 14:54:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:36,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 14:54:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:36,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-17 14:54:36,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:36,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-17 14:54:36,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:36,449 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 14:54:36,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:54:36,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347453986] [2021-12-17 14:54:36,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347453986] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:54:36,449 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:54:36,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:54:36,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736151102] [2021-12-17 14:54:36,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:54:36,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:54:36,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:54:36,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:54:36,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:54:36,451 INFO L87 Difference]: Start difference. First operand 1303 states and 2187 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 14:54:37,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:54:37,673 INFO L93 Difference]: Finished difference Result 3254 states and 5548 transitions. [2021-12-17 14:54:37,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:54:37,674 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 131 [2021-12-17 14:54:37,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:54:37,683 INFO L225 Difference]: With dead ends: 3254 [2021-12-17 14:54:37,684 INFO L226 Difference]: Without dead ends: 2082 [2021-12-17 14:54:37,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:54:37,688 INFO L933 BasicCegarLoop]: 712 mSDtfsCounter, 1549 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 625 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1568 SdHoareTripleChecker+Valid, 1585 SdHoareTripleChecker+Invalid, 1646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 625 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-17 14:54:37,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1568 Valid, 1585 Invalid, 1646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [625 Valid, 1021 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-17 14:54:37,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2082 states. [2021-12-17 14:54:37,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2082 to 1940. [2021-12-17 14:54:37,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1940 states, 1551 states have (on average 1.6376531270148291) internal successors, (2540), 1559 states have internal predecessors, (2540), 356 states have call successors, (356), 28 states have call predecessors, (356), 32 states have return successors, (387), 354 states have call predecessors, (387), 355 states have call successors, (387) [2021-12-17 14:54:37,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1940 states to 1940 states and 3283 transitions. [2021-12-17 14:54:37,764 INFO L78 Accepts]: Start accepts. Automaton has 1940 states and 3283 transitions. Word has length 131 [2021-12-17 14:54:37,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:54:37,765 INFO L470 AbstractCegarLoop]: Abstraction has 1940 states and 3283 transitions. [2021-12-17 14:54:37,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 14:54:37,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1940 states and 3283 transitions. [2021-12-17 14:54:37,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-12-17 14:54:37,772 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:54:37,772 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:54:37,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-17 14:54:37,773 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:54:37,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:54:37,773 INFO L85 PathProgramCache]: Analyzing trace with hash -448973916, now seen corresponding path program 1 times [2021-12-17 14:54:37,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:54:37,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784341377] [2021-12-17 14:54:37,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:54:37,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:54:37,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:37,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:54:37,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:37,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:54:37,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:37,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:54:37,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:37,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:54:37,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:37,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:54:37,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:37,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:54:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:37,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-17 14:54:37,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:37,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-17 14:54:37,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:37,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-17 14:54:37,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:37,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-17 14:54:37,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:37,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-17 14:54:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:37,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-17 14:54:37,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:37,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-17 14:54:37,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:37,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-17 14:54:37,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:37,865 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 14:54:37,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:54:37,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784341377] [2021-12-17 14:54:37,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784341377] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:54:37,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:54:37,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:54:37,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951590151] [2021-12-17 14:54:37,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:54:37,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:54:37,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:54:37,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:54:37,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:54:37,867 INFO L87 Difference]: Start difference. First operand 1940 states and 3283 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 14:54:39,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:54:39,138 INFO L93 Difference]: Finished difference Result 4734 states and 8159 transitions. [2021-12-17 14:54:39,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:54:39,139 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2021-12-17 14:54:39,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:54:39,150 INFO L225 Difference]: With dead ends: 4734 [2021-12-17 14:54:39,150 INFO L226 Difference]: Without dead ends: 3060 [2021-12-17 14:54:39,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:54:39,155 INFO L933 BasicCegarLoop]: 720 mSDtfsCounter, 1542 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 623 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1561 SdHoareTripleChecker+Valid, 1599 SdHoareTripleChecker+Invalid, 1649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 623 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-17 14:54:39,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1561 Valid, 1599 Invalid, 1649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [623 Valid, 1026 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-17 14:54:39,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3060 states. [2021-12-17 14:54:39,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3060 to 2918. [2021-12-17 14:54:39,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2918 states, 2367 states have (on average 1.6451204055766793) internal successors, (3894), 2375 states have internal predecessors, (3894), 518 states have call successors, (518), 28 states have call predecessors, (518), 32 states have return successors, (565), 516 states have call predecessors, (565), 517 states have call successors, (565) [2021-12-17 14:54:39,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2918 states to 2918 states and 4977 transitions. [2021-12-17 14:54:39,264 INFO L78 Accepts]: Start accepts. Automaton has 2918 states and 4977 transitions. Word has length 132 [2021-12-17 14:54:39,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:54:39,264 INFO L470 AbstractCegarLoop]: Abstraction has 2918 states and 4977 transitions. [2021-12-17 14:54:39,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 14:54:39,265 INFO L276 IsEmpty]: Start isEmpty. Operand 2918 states and 4977 transitions. [2021-12-17 14:54:39,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 14:54:39,274 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:54:39,274 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:54:39,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-17 14:54:39,275 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:54:39,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:54:39,275 INFO L85 PathProgramCache]: Analyzing trace with hash 260299725, now seen corresponding path program 1 times [2021-12-17 14:54:39,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:54:39,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773851919] [2021-12-17 14:54:39,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:54:39,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:54:39,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:39,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:54:39,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:39,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:54:39,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:39,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:54:39,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:39,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:54:39,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:39,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:54:39,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:39,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:54:39,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:39,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-17 14:54:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:39,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 14:54:39,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:39,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-17 14:54:39,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:39,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-17 14:54:39,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:39,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-17 14:54:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:39,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-17 14:54:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:39,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-17 14:54:39,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:39,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-17 14:54:39,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:39,361 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 14:54:39,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:54:39,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773851919] [2021-12-17 14:54:39,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773851919] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:54:39,362 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:54:39,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:54:39,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175875671] [2021-12-17 14:54:39,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:54:39,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:54:39,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:54:39,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:54:39,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:54:39,363 INFO L87 Difference]: Start difference. First operand 2918 states and 4977 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 14:54:40,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:54:40,597 INFO L93 Difference]: Finished difference Result 7073 states and 12294 transitions. [2021-12-17 14:54:40,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:54:40,598 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 133 [2021-12-17 14:54:40,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:54:40,616 INFO L225 Difference]: With dead ends: 7073 [2021-12-17 14:54:40,617 INFO L226 Difference]: Without dead ends: 4640 [2021-12-17 14:54:40,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:54:40,625 INFO L933 BasicCegarLoop]: 717 mSDtfsCounter, 1539 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 1012 mSolverCounterSat, 623 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1558 SdHoareTripleChecker+Valid, 1590 SdHoareTripleChecker+Invalid, 1635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 623 IncrementalHoareTripleChecker+Valid, 1012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-17 14:54:40,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1558 Valid, 1590 Invalid, 1635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [623 Valid, 1012 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-17 14:54:40,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4640 states. [2021-12-17 14:54:40,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4640 to 4498. [2021-12-17 14:54:40,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4498 states, 3702 states have (on average 1.650459211237169) internal successors, (6110), 3710 states have internal predecessors, (6110), 763 states have call successors, (763), 28 states have call predecessors, (763), 32 states have return successors, (836), 761 states have call predecessors, (836), 762 states have call successors, (836) [2021-12-17 14:54:40,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4498 states to 4498 states and 7709 transitions. [2021-12-17 14:54:40,821 INFO L78 Accepts]: Start accepts. Automaton has 4498 states and 7709 transitions. Word has length 133 [2021-12-17 14:54:40,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:54:40,821 INFO L470 AbstractCegarLoop]: Abstraction has 4498 states and 7709 transitions. [2021-12-17 14:54:40,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 14:54:40,831 INFO L276 IsEmpty]: Start isEmpty. Operand 4498 states and 7709 transitions. [2021-12-17 14:54:40,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-17 14:54:40,844 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:54:40,844 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:54:40,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-17 14:54:40,844 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:54:40,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:54:40,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1703651880, now seen corresponding path program 1 times [2021-12-17 14:54:40,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:54:40,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352795997] [2021-12-17 14:54:40,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:54:40,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:54:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:40,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:54:40,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:40,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:54:40,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:40,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:54:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:40,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:54:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:40,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:54:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:40,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:54:40,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:40,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-17 14:54:40,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:40,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-17 14:54:40,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:40,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 14:54:40,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:40,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-17 14:54:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:40,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-17 14:54:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:40,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-17 14:54:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:40,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-17 14:54:40,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:40,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-17 14:54:40,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:40,914 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 14:54:40,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:54:40,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352795997] [2021-12-17 14:54:40,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352795997] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:54:40,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:54:40,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:54:40,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022175330] [2021-12-17 14:54:40,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:54:40,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:54:40,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:54:40,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:54:40,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:54:40,916 INFO L87 Difference]: Start difference. First operand 4498 states and 7709 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 14:54:42,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:54:42,252 INFO L93 Difference]: Finished difference Result 11244 states and 19623 transitions. [2021-12-17 14:54:42,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:54:42,252 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 134 [2021-12-17 14:54:42,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:54:42,280 INFO L225 Difference]: With dead ends: 11244 [2021-12-17 14:54:42,280 INFO L226 Difference]: Without dead ends: 7483 [2021-12-17 14:54:42,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:54:42,290 INFO L933 BasicCegarLoop]: 734 mSDtfsCounter, 1535 mSDsluCounter, 915 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 618 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1554 SdHoareTripleChecker+Valid, 1649 SdHoareTripleChecker+Invalid, 1670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 618 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-17 14:54:42,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1554 Valid, 1649 Invalid, 1670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [618 Valid, 1052 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-17 14:54:42,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7483 states. [2021-12-17 14:54:42,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7483 to 7341. [2021-12-17 14:54:42,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7341 states, 6052 states have (on average 1.647224058162591) internal successors, (9969), 6060 states have internal predecessors, (9969), 1256 states have call successors, (1256), 28 states have call predecessors, (1256), 32 states have return successors, (1373), 1254 states have call predecessors, (1373), 1255 states have call successors, (1373) [2021-12-17 14:54:42,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7341 states to 7341 states and 12598 transitions. [2021-12-17 14:54:42,595 INFO L78 Accepts]: Start accepts. Automaton has 7341 states and 12598 transitions. Word has length 134 [2021-12-17 14:54:42,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:54:42,595 INFO L470 AbstractCegarLoop]: Abstraction has 7341 states and 12598 transitions. [2021-12-17 14:54:42,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 14:54:42,595 INFO L276 IsEmpty]: Start isEmpty. Operand 7341 states and 12598 transitions. [2021-12-17 14:54:42,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-17 14:54:42,614 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:54:42,614 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:54:42,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-17 14:54:42,615 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:54:42,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:54:42,615 INFO L85 PathProgramCache]: Analyzing trace with hash 756971849, now seen corresponding path program 1 times [2021-12-17 14:54:42,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:54:42,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966777638] [2021-12-17 14:54:42,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:54:42,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:54:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:42,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:54:42,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:42,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:54:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:42,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:54:42,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:42,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:54:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:42,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:54:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:42,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:54:42,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:42,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-17 14:54:42,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:42,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-17 14:54:42,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:42,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-17 14:54:42,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:42,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 14:54:42,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:42,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-17 14:54:42,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:42,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-17 14:54:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:42,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-17 14:54:42,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:42,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-17 14:54:42,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:42,735 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 14:54:42,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:54:42,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966777638] [2021-12-17 14:54:42,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966777638] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:54:42,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:54:42,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:54:42,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918498082] [2021-12-17 14:54:42,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:54:42,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:54:42,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:54:42,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:54:42,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:54:42,738 INFO L87 Difference]: Start difference. First operand 7341 states and 12598 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 14:54:44,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:54:44,189 INFO L93 Difference]: Finished difference Result 18664 states and 32587 transitions. [2021-12-17 14:54:44,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:54:44,190 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 135 [2021-12-17 14:54:44,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:54:44,228 INFO L225 Difference]: With dead ends: 18664 [2021-12-17 14:54:44,228 INFO L226 Difference]: Without dead ends: 12462 [2021-12-17 14:54:44,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:54:44,244 INFO L933 BasicCegarLoop]: 729 mSDtfsCounter, 1533 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 630 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1551 SdHoareTripleChecker+Valid, 1633 SdHoareTripleChecker+Invalid, 1669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 630 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-17 14:54:44,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1551 Valid, 1633 Invalid, 1669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [630 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-17 14:54:44,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12462 states. [2021-12-17 14:54:44,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12462 to 12320. [2021-12-17 14:54:44,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12320 states, 10209 states have (on average 1.6475658732490939) internal successors, (16820), 10217 states have internal predecessors, (16820), 2078 states have call successors, (2078), 28 states have call predecessors, (2078), 32 states have return successors, (2273), 2076 states have call predecessors, (2273), 2077 states have call successors, (2273) [2021-12-17 14:54:44,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12320 states to 12320 states and 21171 transitions. [2021-12-17 14:54:44,866 INFO L78 Accepts]: Start accepts. Automaton has 12320 states and 21171 transitions. Word has length 135 [2021-12-17 14:54:44,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:54:44,867 INFO L470 AbstractCegarLoop]: Abstraction has 12320 states and 21171 transitions. [2021-12-17 14:54:44,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 14:54:44,867 INFO L276 IsEmpty]: Start isEmpty. Operand 12320 states and 21171 transitions. [2021-12-17 14:54:44,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-12-17 14:54:44,888 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:54:44,888 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:54:44,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-17 14:54:44,888 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:54:44,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:54:44,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1993121446, now seen corresponding path program 1 times [2021-12-17 14:54:44,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:54:44,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723368966] [2021-12-17 14:54:44,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:54:44,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:54:44,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:44,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:54:44,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:44,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:54:44,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:44,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:54:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:44,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:54:44,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:44,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:54:44,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:44,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:54:44,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:44,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-17 14:54:44,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:44,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-17 14:54:44,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:44,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-17 14:54:44,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:44,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-17 14:54:44,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:44,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-17 14:54:44,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:44,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-17 14:54:44,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:44,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-17 14:54:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:44,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-17 14:54:44,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:44,966 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 14:54:44,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:54:44,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723368966] [2021-12-17 14:54:44,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723368966] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:54:44,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:54:44,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:54:44,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956344283] [2021-12-17 14:54:44,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:54:44,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:54:44,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:54:44,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:54:44,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:54:44,970 INFO L87 Difference]: Start difference. First operand 12320 states and 21171 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 14:54:46,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:54:46,642 INFO L93 Difference]: Finished difference Result 29622 states and 51447 transitions. [2021-12-17 14:54:46,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:54:46,644 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 136 [2021-12-17 14:54:46,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:54:46,710 INFO L225 Difference]: With dead ends: 29622 [2021-12-17 14:54:46,710 INFO L226 Difference]: Without dead ends: 19415 [2021-12-17 14:54:46,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:54:46,739 INFO L933 BasicCegarLoop]: 715 mSDtfsCounter, 1537 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 618 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1555 SdHoareTripleChecker+Valid, 1570 SdHoareTripleChecker+Invalid, 1650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 618 IncrementalHoareTripleChecker+Valid, 1032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-17 14:54:46,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1555 Valid, 1570 Invalid, 1650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [618 Valid, 1032 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-17 14:54:46,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19415 states. [2021-12-17 14:54:47,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19415 to 19273. [2021-12-17 14:54:47,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19273 states, 15959 states have (on average 1.6222820978758068) internal successors, (25890), 15967 states have internal predecessors, (25890), 3281 states have call successors, (3281), 28 states have call predecessors, (3281), 32 states have return successors, (3620), 3279 states have call predecessors, (3620), 3280 states have call successors, (3620) [2021-12-17 14:54:47,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19273 states to 19273 states and 32791 transitions. [2021-12-17 14:54:47,624 INFO L78 Accepts]: Start accepts. Automaton has 19273 states and 32791 transitions. Word has length 136 [2021-12-17 14:54:47,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:54:47,625 INFO L470 AbstractCegarLoop]: Abstraction has 19273 states and 32791 transitions. [2021-12-17 14:54:47,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 14:54:47,625 INFO L276 IsEmpty]: Start isEmpty. Operand 19273 states and 32791 transitions. [2021-12-17 14:54:47,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-17 14:54:47,648 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:54:47,648 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:54:47,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-17 14:54:47,648 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:54:47,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:54:47,649 INFO L85 PathProgramCache]: Analyzing trace with hash -2018922648, now seen corresponding path program 1 times [2021-12-17 14:54:47,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:54:47,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967591520] [2021-12-17 14:54:47,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:54:47,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:54:47,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:47,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:54:47,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:47,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:54:47,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:47,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:54:47,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:47,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:54:47,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:47,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:54:47,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:47,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:54:47,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:47,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-17 14:54:47,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:47,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-17 14:54:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:47,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-17 14:54:47,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:47,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-17 14:54:47,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:47,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 14:54:47,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:47,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-17 14:54:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:47,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-17 14:54:47,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:47,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-17 14:54:47,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:47,720 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 14:54:47,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:54:47,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967591520] [2021-12-17 14:54:47,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967591520] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:54:47,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:54:47,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:54:47,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567197620] [2021-12-17 14:54:47,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:54:47,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:54:47,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:54:47,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:54:47,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:54:47,722 INFO L87 Difference]: Start difference. First operand 19273 states and 32791 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 14:54:50,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:54:50,257 INFO L93 Difference]: Finished difference Result 51054 states and 88365 transitions. [2021-12-17 14:54:50,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:54:50,258 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 137 [2021-12-17 14:54:50,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:54:50,360 INFO L225 Difference]: With dead ends: 51054 [2021-12-17 14:54:50,360 INFO L226 Difference]: Without dead ends: 34536 [2021-12-17 14:54:50,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:54:50,393 INFO L933 BasicCegarLoop]: 721 mSDtfsCounter, 1530 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 644 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1548 SdHoareTripleChecker+Valid, 1602 SdHoareTripleChecker+Invalid, 1676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 644 IncrementalHoareTripleChecker+Valid, 1032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-17 14:54:50,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1548 Valid, 1602 Invalid, 1676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [644 Valid, 1032 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-17 14:54:50,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34536 states. [2021-12-17 14:54:51,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34536 to 34394. [2021-12-17 14:54:51,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34394 states, 28630 states have (on average 1.61914076143905) internal successors, (46356), 28638 states have internal predecessors, (46356), 5731 states have call successors, (5731), 28 states have call predecessors, (5731), 32 states have return successors, (6344), 5729 states have call predecessors, (6344), 5730 states have call successors, (6344) [2021-12-17 14:54:52,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34394 states to 34394 states and 58431 transitions. [2021-12-17 14:54:52,011 INFO L78 Accepts]: Start accepts. Automaton has 34394 states and 58431 transitions. Word has length 137 [2021-12-17 14:54:52,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:54:52,011 INFO L470 AbstractCegarLoop]: Abstraction has 34394 states and 58431 transitions. [2021-12-17 14:54:52,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 14:54:52,011 INFO L276 IsEmpty]: Start isEmpty. Operand 34394 states and 58431 transitions. [2021-12-17 14:54:52,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-17 14:54:52,039 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:54:52,039 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:54:52,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-17 14:54:52,039 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:54:52,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:54:52,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1246015756, now seen corresponding path program 1 times [2021-12-17 14:54:52,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:54:52,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717445841] [2021-12-17 14:54:52,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:54:52,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:54:52,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:52,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:54:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:52,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:54:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:52,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:54:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:52,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:54:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:52,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:54:52,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:52,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:54:52,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:52,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 14:54:52,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:52,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-17 14:54:52,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:52,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-17 14:54:52,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:52,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-17 14:54:52,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:52,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-17 14:54:52,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:52,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-17 14:54:52,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:52,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-17 14:54:52,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:52,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-17 14:54:52,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:52,336 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 14:54:52,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:54:52,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717445841] [2021-12-17 14:54:52,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717445841] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:54:52,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:54:52,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:54:52,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006971352] [2021-12-17 14:54:52,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:54:52,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:54:52,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:54:52,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:54:52,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:54:52,338 INFO L87 Difference]: Start difference. First operand 34394 states and 58431 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 14:54:55,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:54:55,741 INFO L93 Difference]: Finished difference Result 93926 states and 161764 transitions. [2021-12-17 14:54:55,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:54:55,741 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 138 [2021-12-17 14:54:55,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:54:55,944 INFO L225 Difference]: With dead ends: 93926 [2021-12-17 14:54:55,944 INFO L226 Difference]: Without dead ends: 63203 [2021-12-17 14:54:56,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:54:56,003 INFO L933 BasicCegarLoop]: 724 mSDtfsCounter, 1534 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 605 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1553 SdHoareTripleChecker+Valid, 1627 SdHoareTripleChecker+Invalid, 1640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 605 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-17 14:54:56,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1553 Valid, 1627 Invalid, 1640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [605 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-17 14:54:56,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63203 states. [2021-12-17 14:54:58,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63203 to 63061. [2021-12-17 14:54:59,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63061 states, 52784 states have (on average 1.6149022431039708) internal successors, (85241), 52792 states have internal predecessors, (85241), 10244 states have call successors, (10244), 28 states have call predecessors, (10244), 32 states have return successors, (11389), 10242 states have call predecessors, (11389), 10243 states have call successors, (11389) [2021-12-17 14:54:59,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63061 states to 63061 states and 106874 transitions. [2021-12-17 14:54:59,201 INFO L78 Accepts]: Start accepts. Automaton has 63061 states and 106874 transitions. Word has length 138 [2021-12-17 14:54:59,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:54:59,201 INFO L470 AbstractCegarLoop]: Abstraction has 63061 states and 106874 transitions. [2021-12-17 14:54:59,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 14:54:59,202 INFO L276 IsEmpty]: Start isEmpty. Operand 63061 states and 106874 transitions. [2021-12-17 14:54:59,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-12-17 14:54:59,234 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:54:59,234 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:54:59,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-17 14:54:59,234 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:54:59,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:54:59,235 INFO L85 PathProgramCache]: Analyzing trace with hash -675372664, now seen corresponding path program 1 times [2021-12-17 14:54:59,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:54:59,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480402219] [2021-12-17 14:54:59,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:54:59,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:54:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:59,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:54:59,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:59,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:54:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:59,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:54:59,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:59,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:54:59,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:59,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:54:59,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:59,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:54:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:59,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-17 14:54:59,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:59,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-17 14:54:59,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:59,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-17 14:54:59,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:59,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-17 14:54:59,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:59,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-17 14:54:59,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:59,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-17 14:54:59,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:59,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-17 14:54:59,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:59,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-17 14:54:59,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:54:59,309 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 14:54:59,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:54:59,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480402219] [2021-12-17 14:54:59,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480402219] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:54:59,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:54:59,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:54:59,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113607336] [2021-12-17 14:54:59,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:54:59,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:54:59,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:54:59,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:54:59,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:54:59,312 INFO L87 Difference]: Start difference. First operand 63061 states and 106874 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 14:55:04,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:55:04,184 INFO L93 Difference]: Finished difference Result 118302 states and 204141 transitions. [2021-12-17 14:55:04,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:55:04,184 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 139 [2021-12-17 14:55:04,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:55:04,651 INFO L225 Difference]: With dead ends: 118302 [2021-12-17 14:55:04,652 INFO L226 Difference]: Without dead ends: 118076 [2021-12-17 14:55:04,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:55:04,703 INFO L933 BasicCegarLoop]: 718 mSDtfsCounter, 1531 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 640 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1549 SdHoareTripleChecker+Valid, 1599 SdHoareTripleChecker+Invalid, 1670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 640 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-17 14:55:04,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1549 Valid, 1599 Invalid, 1670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [640 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-17 14:55:04,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118076 states. [2021-12-17 14:55:10,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118076 to 117934. [2021-12-17 14:55:10,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117934 states, 99289 states have (on average 1.6095337852128635) internal successors, (159809), 99297 states have internal predecessors, (159809), 18612 states have call successors, (18612), 28 states have call predecessors, (18612), 32 states have return successors, (20803), 18610 states have call predecessors, (20803), 18611 states have call successors, (20803) [2021-12-17 14:55:10,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117934 states to 117934 states and 199224 transitions. [2021-12-17 14:55:10,593 INFO L78 Accepts]: Start accepts. Automaton has 117934 states and 199224 transitions. Word has length 139 [2021-12-17 14:55:10,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:55:10,594 INFO L470 AbstractCegarLoop]: Abstraction has 117934 states and 199224 transitions. [2021-12-17 14:55:10,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 14:55:10,594 INFO L276 IsEmpty]: Start isEmpty. Operand 117934 states and 199224 transitions. [2021-12-17 14:55:10,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-12-17 14:55:10,639 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:55:10,639 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 14:55:10,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-17 14:55:10,640 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:55:10,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:55:10,640 INFO L85 PathProgramCache]: Analyzing trace with hash 197221997, now seen corresponding path program 1 times [2021-12-17 14:55:10,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:55:10,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852247975] [2021-12-17 14:55:10,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:55:10,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:55:10,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:55:10,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:55:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:55:10,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:55:10,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:55:10,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:55:10,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:55:10,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:55:10,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:55:10,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:55:10,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:55:10,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:55:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:55:10,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-17 14:55:10,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:55:10,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-17 14:55:10,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:55:10,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-17 14:55:10,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:55:10,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-17 14:55:10,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:55:10,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-17 14:55:10,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:55:10,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-17 14:55:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:55:10,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-17 14:55:10,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:55:10,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-17 14:55:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:55:10,855 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 14:55:10,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:55:10,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852247975] [2021-12-17 14:55:10,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852247975] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:55:10,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:55:10,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-12-17 14:55:10,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044167822] [2021-12-17 14:55:10,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:55:10,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-17 14:55:10,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:55:10,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-17 14:55:10,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-12-17 14:55:10,857 INFO L87 Difference]: Start difference. First operand 117934 states and 199224 transitions. Second operand has 18 states, 16 states have (on average 6.0) internal successors, (96), 12 states have internal predecessors, (96), 6 states have call successors, (17), 7 states have call predecessors, (17), 4 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14)