./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec11_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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_spec11_product35.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 97d4c6be733483d74e70aacf7c001bc7f4ca03733e33a8c0b4370e9380a7e003 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 17:21:46,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 17:21:46,557 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 17:21:46,591 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 17:21:46,592 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 17:21:46,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 17:21:46,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 17:21:46,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 17:21:46,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 17:21:46,602 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 17:21:46,603 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 17:21:46,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 17:21:46,605 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 17:21:46,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 17:21:46,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 17:21:46,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 17:21:46,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 17:21:46,614 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 17:21:46,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 17:21:46,621 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 17:21:46,622 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 17:21:46,623 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 17:21:46,624 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 17:21:46,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 17:21:46,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 17:21:46,632 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 17:21:46,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 17:21:46,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 17:21:46,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 17:21:46,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 17:21:46,636 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 17:21:46,636 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 17:21:46,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 17:21:46,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 17:21:46,640 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 17:21:46,640 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 17:21:46,641 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 17:21:46,641 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 17:21:46,641 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 17:21:46,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 17:21:46,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 17:21:46,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 17:21:46,645 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 17:21:46,681 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 17:21:46,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 17:21:46,682 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 17:21:46,682 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 17:21:46,683 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 17:21:46,683 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 17:21:46,684 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 17:21:46,684 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 17:21:46,684 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 17:21:46,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 17:21:46,685 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 17:21:46,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 17:21:46,686 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 17:21:46,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 17:21:46,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 17:21:46,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 17:21:46,686 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 17:21:46,687 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 17:21:46,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 17:21:46,688 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 17:21:46,688 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 17:21:46,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 17:21:46,688 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 17:21:46,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 17:21:46,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 17:21:46,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 17:21:46,689 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 17:21:46,690 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 17:21:46,690 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 17:21:46,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 17:21:46,690 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 17:21:46,690 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 17:21:46,691 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 17:21:46,691 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97d4c6be733483d74e70aacf7c001bc7f4ca03733e33a8c0b4370e9380a7e003 [2022-07-22 17:21:46,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 17:21:46,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 17:21:46,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 17:21:46,906 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 17:21:46,907 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 17:21:46,908 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec11_product35.cil.c [2022-07-22 17:21:46,993 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0ea9b557/77f99a27426642259d3ca311f909962e/FLAGac44040e7 [2022-07-22 17:21:47,499 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 17:21:47,501 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec11_product35.cil.c [2022-07-22 17:21:47,518 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0ea9b557/77f99a27426642259d3ca311f909962e/FLAGac44040e7 [2022-07-22 17:21:47,787 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0ea9b557/77f99a27426642259d3ca311f909962e [2022-07-22 17:21:47,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 17:21:47,792 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 17:21:47,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 17:21:47,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 17:21:47,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 17:21:47,801 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 05:21:47" (1/1) ... [2022-07-22 17:21:47,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50498622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:21:47, skipping insertion in model container [2022-07-22 17:21:47,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 05:21:47" (1/1) ... [2022-07-22 17:21:47,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 17:21:47,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 17:21:48,373 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_spec11_product35.cil.c[61136,61149] [2022-07-22 17:21:48,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 17:21:48,417 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 17:21:48,481 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_spec11_product35.cil.c[61136,61149] [2022-07-22 17:21:48,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 17:21:48,521 INFO L208 MainTranslator]: Completed translation [2022-07-22 17:21:48,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:21:48 WrapperNode [2022-07-22 17:21:48,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 17:21:48,523 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 17:21:48,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 17:21:48,523 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 17:21:48,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:21:48" (1/1) ... [2022-07-22 17:21:48,555 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:21:48" (1/1) ... [2022-07-22 17:21:48,612 INFO L137 Inliner]: procedures = 137, calls = 246, calls flagged for inlining = 66, calls inlined = 63, statements flattened = 1142 [2022-07-22 17:21:48,612 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 17:21:48,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 17:21:48,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 17:21:48,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 17:21:48,620 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:21:48" (1/1) ... [2022-07-22 17:21:48,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:21:48" (1/1) ... [2022-07-22 17:21:48,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:21:48" (1/1) ... [2022-07-22 17:21:48,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:21:48" (1/1) ... [2022-07-22 17:21:48,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:21:48" (1/1) ... [2022-07-22 17:21:48,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:21:48" (1/1) ... [2022-07-22 17:21:48,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:21:48" (1/1) ... [2022-07-22 17:21:48,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 17:21:48,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 17:21:48,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 17:21:48,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 17:21:48,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:21:48" (1/1) ... [2022-07-22 17:21:48,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 17:21:48,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 17:21:48,733 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) [2022-07-22 17:21:48,755 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 [2022-07-22 17:21:48,771 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-07-22 17:21:48,771 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-07-22 17:21:48,771 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-07-22 17:21:48,771 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-07-22 17:21:48,772 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-07-22 17:21:48,772 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-07-22 17:21:48,772 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-07-22 17:21:48,773 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-07-22 17:21:48,773 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-07-22 17:21:48,775 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-07-22 17:21:48,775 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-07-22 17:21:48,775 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-07-22 17:21:48,775 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-07-22 17:21:48,776 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-07-22 17:21:48,776 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-07-22 17:21:48,776 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-07-22 17:21:48,776 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-07-22 17:21:48,776 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-07-22 17:21:48,776 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-07-22 17:21:48,776 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-07-22 17:21:48,776 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-07-22 17:21:48,776 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-07-22 17:21:48,776 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-07-22 17:21:48,776 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-07-22 17:21:48,776 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-07-22 17:21:48,777 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-07-22 17:21:48,777 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-07-22 17:21:48,777 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-07-22 17:21:48,777 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-07-22 17:21:48,778 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-07-22 17:21:48,778 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-07-22 17:21:48,778 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-07-22 17:21:48,778 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-07-22 17:21:48,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 17:21:48,778 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-07-22 17:21:48,778 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-07-22 17:21:48,778 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-07-22 17:21:48,779 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-07-22 17:21:48,779 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-07-22 17:21:48,779 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-07-22 17:21:48,779 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-07-22 17:21:48,779 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-07-22 17:21:48,779 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-07-22 17:21:48,779 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-07-22 17:21:48,779 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-07-22 17:21:48,779 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-07-22 17:21:48,779 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-07-22 17:21:48,779 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-07-22 17:21:48,779 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-07-22 17:21:48,780 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-07-22 17:21:48,780 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-07-22 17:21:48,780 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-07-22 17:21:48,780 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-07-22 17:21:48,780 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-07-22 17:21:48,780 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-07-22 17:21:48,780 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-07-22 17:21:48,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 17:21:48,781 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-07-22 17:21:48,781 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-07-22 17:21:48,781 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-07-22 17:21:48,781 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-07-22 17:21:48,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 17:21:48,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 17:21:49,015 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 17:21:49,031 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 17:21:49,802 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 17:21:49,822 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 17:21:49,823 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 17:21:49,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 05:21:49 BoogieIcfgContainer [2022-07-22 17:21:49,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 17:21:49,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 17:21:49,830 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 17:21:49,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 17:21:49,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 05:21:47" (1/3) ... [2022-07-22 17:21:49,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1494cf88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 05:21:49, skipping insertion in model container [2022-07-22 17:21:49,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:21:48" (2/3) ... [2022-07-22 17:21:49,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1494cf88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 05:21:49, skipping insertion in model container [2022-07-22 17:21:49,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 05:21:49" (3/3) ... [2022-07-22 17:21:49,837 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec11_product35.cil.c [2022-07-22 17:21:49,848 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 17:21:49,849 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 17:21:49,920 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 17:21:49,927 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@65b86b90, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@8533b66 [2022-07-22 17:21:49,927 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 17:21:49,933 INFO L276 IsEmpty]: Start isEmpty. Operand has 463 states, 358 states have (on average 1.5363128491620113) internal successors, (550), 363 states have internal predecessors, (550), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2022-07-22 17:21:49,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-22 17:21:49,955 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:21:49,956 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:21:49,956 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:21:49,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:21:49,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1750999411, now seen corresponding path program 1 times [2022-07-22 17:21:49,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:21:49,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295705779] [2022-07-22 17:21:49,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:21:49,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:21:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:50,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:21:50,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:50,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:21:50,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:50,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 17:21:50,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:50,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-22 17:21:50,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:50,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-22 17:21:50,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:50,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 17:21:50,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:50,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-22 17:21:50,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:50,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 17:21:50,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:50,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-22 17:21:50,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:50,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-22 17:21:50,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:50,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-22 17:21:50,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:50,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-22 17:21:50,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:50,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-22 17:21:50,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:50,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-22 17:21:50,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:50,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-22 17:21:50,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:50,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-22 17:21:50,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:50,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-22 17:21:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:50,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-22 17:21:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:50,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-22 17:21:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:50,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:21:50,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:50,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-22 17:21:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:50,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:21:50,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:50,565 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-07-22 17:21:50,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:21:50,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295705779] [2022-07-22 17:21:50,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295705779] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 17:21:50,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548688416] [2022-07-22 17:21:50,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:21:50,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 17:21:50,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 17:21:50,575 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) [2022-07-22 17:21:50,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 17:21:50,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:50,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 1400 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-22 17:21:50,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 17:21:51,006 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-07-22 17:21:51,006 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 17:21:51,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [548688416] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:21:51,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 17:21:51,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-07-22 17:21:51,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956390658] [2022-07-22 17:21:51,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:21:51,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 17:21:51,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:21:51,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 17:21:51,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 17:21:51,048 INFO L87 Difference]: Start difference. First operand has 463 states, 358 states have (on average 1.5363128491620113) internal successors, (550), 363 states have internal predecessors, (550), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) Second operand has 2 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-22 17:21:51,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:21:51,122 INFO L93 Difference]: Finished difference Result 728 states and 1078 transitions. [2022-07-22 17:21:51,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 17:21:51,124 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 167 [2022-07-22 17:21:51,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:21:51,138 INFO L225 Difference]: With dead ends: 728 [2022-07-22 17:21:51,138 INFO L226 Difference]: Without dead ends: 456 [2022-07-22 17:21:51,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 17:21:51,148 INFO L413 NwaCegarLoop]: 694 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, 694 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 [2022-07-22 17:21:51,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:21:51,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-07-22 17:21:51,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2022-07-22 17:21:51,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 352 states have (on average 1.53125) internal successors, (539), 356 states have internal predecessors, (539), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2022-07-22 17:21:51,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 686 transitions. [2022-07-22 17:21:51,225 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 686 transitions. Word has length 167 [2022-07-22 17:21:51,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:21:51,227 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 686 transitions. [2022-07-22 17:21:51,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-22 17:21:51,228 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 686 transitions. [2022-07-22 17:21:51,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-07-22 17:21:51,234 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:21:51,234 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:21:51,269 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 17:21:51,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-07-22 17:21:51,446 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:21:51,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:21:51,448 INFO L85 PathProgramCache]: Analyzing trace with hash 305354623, now seen corresponding path program 1 times [2022-07-22 17:21:51,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:21:51,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750853001] [2022-07-22 17:21:51,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:21:51,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:21:51,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:51,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:21:51,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:51,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:21:51,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:51,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 17:21:51,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:51,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-22 17:21:51,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:51,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-22 17:21:51,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:51,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 17:21:51,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:51,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-22 17:21:51,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:51,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-22 17:21:51,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:51,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 17:21:51,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:51,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 17:21:51,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:51,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-22 17:21:51,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:51,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-22 17:21:51,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:51,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-22 17:21:51,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:51,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-22 17:21:51,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:51,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-22 17:21:51,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:51,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-22 17:21:51,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:51,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-22 17:21:51,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:51,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-22 17:21:51,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:51,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-22 17:21:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:51,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:21:51,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:51,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-22 17:21:51,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:51,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:21:51,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:51,662 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-07-22 17:21:51,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:21:51,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750853001] [2022-07-22 17:21:51,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750853001] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 17:21:51,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598543693] [2022-07-22 17:21:51,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:21:51,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 17:21:51,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 17:21:51,672 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) [2022-07-22 17:21:51,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 17:21:51,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:51,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 1401 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 17:21:51,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 17:21:52,030 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-07-22 17:21:52,031 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 17:21:52,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598543693] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:21:52,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 17:21:52,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-22 17:21:52,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540186886] [2022-07-22 17:21:52,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:21:52,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:21:52,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:21:52,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:21:52,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-22 17:21:52,050 INFO L87 Difference]: Start difference. First operand 456 states and 686 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-22 17:21:52,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:21:52,132 INFO L93 Difference]: Finished difference Result 718 states and 1056 transitions. [2022-07-22 17:21:52,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:21:52,141 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 168 [2022-07-22 17:21:52,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:21:52,145 INFO L225 Difference]: With dead ends: 718 [2022-07-22 17:21:52,145 INFO L226 Difference]: Without dead ends: 459 [2022-07-22 17:21:52,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-22 17:21:52,148 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 1 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1366 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 [2022-07-22 17:21:52,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1366 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:21:52,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2022-07-22 17:21:52,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 458. [2022-07-22 17:21:52,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 354 states have (on average 1.5282485875706215) internal successors, (541), 358 states have internal predecessors, (541), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2022-07-22 17:21:52,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 688 transitions. [2022-07-22 17:21:52,202 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 688 transitions. Word has length 168 [2022-07-22 17:21:52,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:21:52,203 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 688 transitions. [2022-07-22 17:21:52,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-22 17:21:52,204 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 688 transitions. [2022-07-22 17:21:52,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-07-22 17:21:52,211 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:21:52,211 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:21:52,241 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 17:21:52,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-07-22 17:21:52,428 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:21:52,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:21:52,428 INFO L85 PathProgramCache]: Analyzing trace with hash 2123478460, now seen corresponding path program 1 times [2022-07-22 17:21:52,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:21:52,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749179181] [2022-07-22 17:21:52,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:21:52,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:21:52,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:52,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:21:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:52,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:21:52,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:52,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 17:21:52,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:52,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-22 17:21:52,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:52,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-22 17:21:52,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:52,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 17:21:52,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:52,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-22 17:21:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:52,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 17:21:52,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:52,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-22 17:21:52,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:52,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-22 17:21:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:52,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-22 17:21:52,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:52,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-22 17:21:52,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:52,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-22 17:21:52,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:52,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-22 17:21:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:52,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-22 17:21:52,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:52,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-22 17:21:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:52,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-22 17:21:52,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:52,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-22 17:21:52,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:52,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-22 17:21:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:52,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:21:52,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:52,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-22 17:21:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:52,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:21:52,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:52,592 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-22 17:21:52,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:21:52,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749179181] [2022-07-22 17:21:52,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749179181] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 17:21:52,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384806630] [2022-07-22 17:21:52,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:21:52,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 17:21:52,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 17:21:52,595 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) [2022-07-22 17:21:52,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 17:21:52,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:52,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 1428 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 17:21:52,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 17:21:52,960 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-07-22 17:21:52,960 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 17:21:52,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384806630] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:21:52,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 17:21:52,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-22 17:21:52,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660153040] [2022-07-22 17:21:52,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:21:52,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:21:52,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:21:52,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:21:52,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-22 17:21:52,963 INFO L87 Difference]: Start difference. First operand 458 states and 688 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-22 17:21:53,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:21:53,002 INFO L93 Difference]: Finished difference Result 969 states and 1476 transitions. [2022-07-22 17:21:53,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:21:53,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 177 [2022-07-22 17:21:53,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:21:53,007 INFO L225 Difference]: With dead ends: 969 [2022-07-22 17:21:53,008 INFO L226 Difference]: Without dead ends: 538 [2022-07-22 17:21:53,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-22 17:21:53,010 INFO L413 NwaCegarLoop]: 705 mSDtfsCounter, 142 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1343 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 [2022-07-22 17:21:53,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1343 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:21:53,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2022-07-22 17:21:53,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 530. [2022-07-22 17:21:53,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 412 states have (on average 1.5485436893203883) internal successors, (638), 416 states have internal predecessors, (638), 88 states have call successors, (88), 29 states have call predecessors, (88), 29 states have return successors, (87), 86 states have call predecessors, (87), 87 states have call successors, (87) [2022-07-22 17:21:53,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 813 transitions. [2022-07-22 17:21:53,039 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 813 transitions. Word has length 177 [2022-07-22 17:21:53,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:21:53,039 INFO L495 AbstractCegarLoop]: Abstraction has 530 states and 813 transitions. [2022-07-22 17:21:53,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-22 17:21:53,040 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 813 transitions. [2022-07-22 17:21:53,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-07-22 17:21:53,043 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:21:53,043 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:21:53,071 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-22 17:21:53,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 17:21:53,268 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:21:53,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:21:53,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1741878275, now seen corresponding path program 1 times [2022-07-22 17:21:53,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:21:53,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056072937] [2022-07-22 17:21:53,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:21:53,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:21:53,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:53,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:21:53,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:53,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:21:53,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:53,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 17:21:53,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:53,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-22 17:21:53,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:53,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-22 17:21:53,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:53,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 17:21:53,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:53,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-22 17:21:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:53,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-22 17:21:53,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:53,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-22 17:21:53,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:53,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-22 17:21:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:53,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-22 17:21:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:53,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-22 17:21:53,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:53,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-22 17:21:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:53,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-22 17:21:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:53,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-22 17:21:53,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:53,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-22 17:21:53,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:53,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:21:53,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:53,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-22 17:21:53,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:53,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:21:53,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:53,400 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-07-22 17:21:53,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:21:53,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056072937] [2022-07-22 17:21:53,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056072937] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 17:21:53,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826640761] [2022-07-22 17:21:53,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:21:53,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 17:21:53,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 17:21:53,402 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) [2022-07-22 17:21:53,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-22 17:21:53,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:53,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 1354 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 17:21:53,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 17:21:53,775 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-07-22 17:21:53,776 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 17:21:53,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [826640761] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:21:53,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 17:21:53,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-07-22 17:21:53,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602138768] [2022-07-22 17:21:53,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:21:53,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 17:21:53,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:21:53,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 17:21:53,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 17:21:53,778 INFO L87 Difference]: Start difference. First operand 530 states and 813 transitions. Second operand has 5 states, 4 states have (on average 24.5) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-22 17:21:53,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:21:53,857 INFO L93 Difference]: Finished difference Result 1051 states and 1616 transitions. [2022-07-22 17:21:53,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 17:21:53,857 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.5) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 159 [2022-07-22 17:21:53,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:21:53,862 INFO L225 Difference]: With dead ends: 1051 [2022-07-22 17:21:53,862 INFO L226 Difference]: Without dead ends: 532 [2022-07-22 17:21:53,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-07-22 17:21:53,868 INFO L413 NwaCegarLoop]: 677 mSDtfsCounter, 160 mSDsluCounter, 1848 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 2525 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:21:53,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 2525 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:21:53,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2022-07-22 17:21:53,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2022-07-22 17:21:53,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 413 states have (on average 1.5472154963680387) internal successors, (639), 418 states have internal predecessors, (639), 88 states have call successors, (88), 29 states have call predecessors, (88), 30 states have return successors, (89), 86 states have call predecessors, (89), 87 states have call successors, (89) [2022-07-22 17:21:53,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 816 transitions. [2022-07-22 17:21:53,907 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 816 transitions. Word has length 159 [2022-07-22 17:21:53,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:21:53,907 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 816 transitions. [2022-07-22 17:21:53,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.5) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-22 17:21:53,908 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 816 transitions. [2022-07-22 17:21:53,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-07-22 17:21:53,912 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:21:53,913 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:21:53,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-22 17:21:54,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 17:21:54,128 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:21:54,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:21:54,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1528256094, now seen corresponding path program 1 times [2022-07-22 17:21:54,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:21:54,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059432395] [2022-07-22 17:21:54,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:21:54,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:21:54,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:54,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:21:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:54,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:21:54,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:54,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 17:21:54,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:54,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-22 17:21:54,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:54,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-22 17:21:54,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:54,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-22 17:21:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:54,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-22 17:21:54,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:54,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-22 17:21:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:54,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-22 17:21:54,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:54,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-22 17:21:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:54,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-22 17:21:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:54,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-22 17:21:54,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:54,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-22 17:21:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:54,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-22 17:21:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:54,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-22 17:21:54,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:54,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-22 17:21:54,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:54,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-22 17:21:54,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:54,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-22 17:21:54,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:54,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-22 17:21:54,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:54,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:21:54,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:54,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-22 17:21:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:54,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:21:54,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:54,346 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-22 17:21:54,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:21:54,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059432395] [2022-07-22 17:21:54,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059432395] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 17:21:54,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102002492] [2022-07-22 17:21:54,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:21:54,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 17:21:54,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 17:21:54,349 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) [2022-07-22 17:21:54,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-22 17:21:54,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:54,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 1436 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 17:21:54,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 17:21:54,732 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-22 17:21:54,732 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 17:21:54,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2102002492] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:21:54,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 17:21:54,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-07-22 17:21:54,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165096200] [2022-07-22 17:21:54,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:21:54,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 17:21:54,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:21:54,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 17:21:54,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-07-22 17:21:54,735 INFO L87 Difference]: Start difference. First operand 532 states and 816 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-22 17:21:54,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:21:54,800 INFO L93 Difference]: Finished difference Result 1053 states and 1621 transitions. [2022-07-22 17:21:54,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 17:21:54,801 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 179 [2022-07-22 17:21:54,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:21:54,804 INFO L225 Difference]: With dead ends: 1053 [2022-07-22 17:21:54,804 INFO L226 Difference]: Without dead ends: 534 [2022-07-22 17:21:54,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-07-22 17:21:54,807 INFO L413 NwaCegarLoop]: 675 mSDtfsCounter, 159 mSDsluCounter, 1839 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 2514 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:21:54,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 2514 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:21:54,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2022-07-22 17:21:54,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2022-07-22 17:21:54,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 414 states have (on average 1.5458937198067633) internal successors, (640), 420 states have internal predecessors, (640), 88 states have call successors, (88), 29 states have call predecessors, (88), 31 states have return successors, (94), 86 states have call predecessors, (94), 87 states have call successors, (94) [2022-07-22 17:21:54,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 822 transitions. [2022-07-22 17:21:54,839 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 822 transitions. Word has length 179 [2022-07-22 17:21:54,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:21:54,840 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 822 transitions. [2022-07-22 17:21:54,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-22 17:21:54,841 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 822 transitions. [2022-07-22 17:21:54,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-07-22 17:21:54,844 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:21:54,844 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:21:54,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-22 17:21:55,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 17:21:55,056 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:21:55,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:21:55,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1369621267, now seen corresponding path program 1 times [2022-07-22 17:21:55,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:21:55,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844246512] [2022-07-22 17:21:55,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:21:55,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:21:55,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:55,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:21:55,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:55,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:21:55,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:55,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 17:21:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:55,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-22 17:21:55,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:55,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 17:21:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:55,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 17:21:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:55,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-22 17:21:55,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:55,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-22 17:21:55,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:55,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-22 17:21:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:55,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-22 17:21:55,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:55,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-22 17:21:55,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:55,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-22 17:21:55,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:55,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-22 17:21:55,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:55,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-22 17:21:55,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:55,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-22 17:21:55,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:55,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-22 17:21:55,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:55,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-22 17:21:55,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:55,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-22 17:21:55,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:55,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-22 17:21:55,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:55,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:21:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:55,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-22 17:21:55,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:55,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:21:55,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:55,229 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-22 17:21:55,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:21:55,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844246512] [2022-07-22 17:21:55,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844246512] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:21:55,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:21:55,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-22 17:21:55,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944792144] [2022-07-22 17:21:55,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:21:55,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 17:21:55,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:21:55,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 17:21:55,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 17:21:55,231 INFO L87 Difference]: Start difference. First operand 534 states and 822 transitions. Second operand has 9 states, 8 states have (on average 12.875) internal successors, (103), 5 states have internal predecessors, (103), 3 states have call successors, (24), 6 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-22 17:21:57,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:21:57,710 INFO L93 Difference]: Finished difference Result 1275 states and 1989 transitions. [2022-07-22 17:21:57,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-22 17:21:57,711 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.875) internal successors, (103), 5 states have internal predecessors, (103), 3 states have call successors, (24), 6 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 180 [2022-07-22 17:21:57,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:21:57,717 INFO L225 Difference]: With dead ends: 1275 [2022-07-22 17:21:57,717 INFO L226 Difference]: Without dead ends: 764 [2022-07-22 17:21:57,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-07-22 17:21:57,721 INFO L413 NwaCegarLoop]: 801 mSDtfsCounter, 1798 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 2894 mSolverCounterSat, 765 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1819 SdHoareTripleChecker+Valid, 1834 SdHoareTripleChecker+Invalid, 3659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 765 IncrementalHoareTripleChecker+Valid, 2894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-22 17:21:57,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1819 Valid, 1834 Invalid, 3659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [765 Valid, 2894 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-22 17:21:57,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2022-07-22 17:21:57,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 534. [2022-07-22 17:21:57,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 414 states have (on average 1.5458937198067633) internal successors, (640), 420 states have internal predecessors, (640), 88 states have call successors, (88), 29 states have call predecessors, (88), 31 states have return successors, (93), 86 states have call predecessors, (93), 87 states have call successors, (93) [2022-07-22 17:21:57,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 821 transitions. [2022-07-22 17:21:57,773 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 821 transitions. Word has length 180 [2022-07-22 17:21:57,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:21:57,774 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 821 transitions. [2022-07-22 17:21:57,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.875) internal successors, (103), 5 states have internal predecessors, (103), 3 states have call successors, (24), 6 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-22 17:21:57,774 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 821 transitions. [2022-07-22 17:21:57,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-07-22 17:21:57,777 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:21:57,778 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:21:57,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 17:21:57,778 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:21:57,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:21:57,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1722056232, now seen corresponding path program 1 times [2022-07-22 17:21:57,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:21:57,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511125913] [2022-07-22 17:21:57,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:21:57,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:21:57,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:57,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:21:57,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:57,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:21:57,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:57,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 17:21:57,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:57,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-22 17:21:57,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:57,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 17:21:57,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:57,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-22 17:21:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:57,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-22 17:21:57,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:57,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 17:21:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:57,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-22 17:21:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:57,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-22 17:21:57,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:57,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-22 17:21:57,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:57,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-22 17:21:57,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:57,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-22 17:21:57,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:57,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-22 17:21:57,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:57,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-22 17:21:57,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:57,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-22 17:21:57,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:57,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:21:57,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:57,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-22 17:21:57,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:57,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:21:57,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:21:57,914 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-07-22 17:21:57,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:21:57,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511125913] [2022-07-22 17:21:57,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511125913] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:21:57,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:21:57,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-22 17:21:57,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530701178] [2022-07-22 17:21:57,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:21:57,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 17:21:57,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:21:57,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 17:21:57,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 17:21:57,917 INFO L87 Difference]: Start difference. First operand 534 states and 821 transitions. Second operand has 9 states, 8 states have (on average 12.125) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-22 17:22:00,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:22:00,364 INFO L93 Difference]: Finished difference Result 1277 states and 1992 transitions. [2022-07-22 17:22:00,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-22 17:22:00,365 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 162 [2022-07-22 17:22:00,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:22:00,371 INFO L225 Difference]: With dead ends: 1277 [2022-07-22 17:22:00,371 INFO L226 Difference]: Without dead ends: 766 [2022-07-22 17:22:00,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-07-22 17:22:00,374 INFO L413 NwaCegarLoop]: 793 mSDtfsCounter, 1823 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 2871 mSolverCounterSat, 767 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1843 SdHoareTripleChecker+Valid, 1826 SdHoareTripleChecker+Invalid, 3638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 767 IncrementalHoareTripleChecker+Valid, 2871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-22 17:22:00,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1843 Valid, 1826 Invalid, 3638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [767 Valid, 2871 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-22 17:22:00,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2022-07-22 17:22:00,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 536. [2022-07-22 17:22:00,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 415 states have (on average 1.544578313253012) internal successors, (641), 422 states have internal predecessors, (641), 88 states have call successors, (88), 29 states have call predecessors, (88), 32 states have return successors, (95), 86 states have call predecessors, (95), 87 states have call successors, (95) [2022-07-22 17:22:00,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 824 transitions. [2022-07-22 17:22:00,410 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 824 transitions. Word has length 162 [2022-07-22 17:22:00,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:22:00,411 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 824 transitions. [2022-07-22 17:22:00,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-22 17:22:00,411 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 824 transitions. [2022-07-22 17:22:00,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-22 17:22:00,414 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:22:00,414 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:22:00,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 17:22:00,414 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:22:00,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:22:00,415 INFO L85 PathProgramCache]: Analyzing trace with hash -604041599, now seen corresponding path program 1 times [2022-07-22 17:22:00,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:22:00,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534352803] [2022-07-22 17:22:00,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:22:00,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:22:00,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:00,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:22:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:00,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:22:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:00,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 17:22:00,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:00,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-22 17:22:00,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:00,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 17:22:00,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:00,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-22 17:22:00,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:00,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 17:22:00,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:00,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-22 17:22:00,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:00,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 17:22:00,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:00,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-22 17:22:00,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:00,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-22 17:22:00,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:00,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-22 17:22:00,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:00,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-22 17:22:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:00,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-22 17:22:00,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:00,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-22 17:22:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:00,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-22 17:22:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:00,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:22:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:00,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-22 17:22:00,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:00,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:22:00,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:00,583 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-22 17:22:00,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:22:00,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534352803] [2022-07-22 17:22:00,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534352803] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:22:00,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:22:00,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-22 17:22:00,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351155708] [2022-07-22 17:22:00,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:22:00,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 17:22:00,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:22:00,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 17:22:00,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-22 17:22:00,586 INFO L87 Difference]: Start difference. First operand 536 states and 824 transitions. Second operand has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-07-22 17:22:03,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:22:03,721 INFO L93 Difference]: Finished difference Result 1275 states and 1987 transitions. [2022-07-22 17:22:03,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 17:22:03,722 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 163 [2022-07-22 17:22:03,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:22:03,727 INFO L225 Difference]: With dead ends: 1275 [2022-07-22 17:22:03,727 INFO L226 Difference]: Without dead ends: 766 [2022-07-22 17:22:03,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-07-22 17:22:03,729 INFO L413 NwaCegarLoop]: 748 mSDtfsCounter, 2047 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 4942 mSolverCounterSat, 858 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2047 SdHoareTripleChecker+Valid, 2170 SdHoareTripleChecker+Invalid, 5800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 858 IncrementalHoareTripleChecker+Valid, 4942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-22 17:22:03,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2047 Valid, 2170 Invalid, 5800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [858 Valid, 4942 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-22 17:22:03,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2022-07-22 17:22:03,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 536. [2022-07-22 17:22:03,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 415 states have (on average 1.544578313253012) internal successors, (641), 422 states have internal predecessors, (641), 88 states have call successors, (88), 29 states have call predecessors, (88), 32 states have return successors, (94), 86 states have call predecessors, (94), 87 states have call successors, (94) [2022-07-22 17:22:03,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 823 transitions. [2022-07-22 17:22:03,764 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 823 transitions. Word has length 163 [2022-07-22 17:22:03,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:22:03,765 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 823 transitions. [2022-07-22 17:22:03,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-07-22 17:22:03,765 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 823 transitions. [2022-07-22 17:22:03,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-07-22 17:22:03,768 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:22:03,768 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:22:03,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-22 17:22:03,769 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:22:03,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:22:03,769 INFO L85 PathProgramCache]: Analyzing trace with hash -2106985160, now seen corresponding path program 2 times [2022-07-22 17:22:03,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:22:03,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510945468] [2022-07-22 17:22:03,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:22:03,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:22:03,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:03,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:22:03,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:03,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:22:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:03,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 17:22:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:03,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-22 17:22:03,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:03,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 17:22:03,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:03,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-22 17:22:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:03,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-22 17:22:03,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:03,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-22 17:22:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:03,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-22 17:22:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:03,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-22 17:22:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:03,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-22 17:22:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:03,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-22 17:22:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:03,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-22 17:22:03,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:03,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-22 17:22:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:03,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-22 17:22:03,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:03,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-22 17:22:03,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:03,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:22:03,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:03,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-22 17:22:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:03,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:22:03,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:03,919 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-22 17:22:03,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:22:03,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510945468] [2022-07-22 17:22:03,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510945468] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:22:03,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:22:03,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-22 17:22:03,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399673000] [2022-07-22 17:22:03,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:22:03,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 17:22:03,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:22:03,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 17:22:03,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-22 17:22:03,922 INFO L87 Difference]: Start difference. First operand 536 states and 823 transitions. Second operand has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-07-22 17:22:06,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:22:06,911 INFO L93 Difference]: Finished difference Result 1277 states and 1993 transitions. [2022-07-22 17:22:06,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 17:22:06,912 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 164 [2022-07-22 17:22:06,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:22:06,917 INFO L225 Difference]: With dead ends: 1277 [2022-07-22 17:22:06,917 INFO L226 Difference]: Without dead ends: 768 [2022-07-22 17:22:06,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-07-22 17:22:06,920 INFO L413 NwaCegarLoop]: 781 mSDtfsCounter, 1912 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 5245 mSolverCounterSat, 797 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1912 SdHoareTripleChecker+Valid, 2203 SdHoareTripleChecker+Invalid, 6042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 797 IncrementalHoareTripleChecker+Valid, 5245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-22 17:22:06,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1912 Valid, 2203 Invalid, 6042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [797 Valid, 5245 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-22 17:22:06,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2022-07-22 17:22:06,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 538. [2022-07-22 17:22:06,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 416 states have (on average 1.5432692307692308) internal successors, (642), 424 states have internal predecessors, (642), 88 states have call successors, (88), 29 states have call predecessors, (88), 33 states have return successors, (99), 86 states have call predecessors, (99), 87 states have call successors, (99) [2022-07-22 17:22:06,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 829 transitions. [2022-07-22 17:22:06,965 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 829 transitions. Word has length 164 [2022-07-22 17:22:06,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:22:06,965 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 829 transitions. [2022-07-22 17:22:06,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-07-22 17:22:06,966 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 829 transitions. [2022-07-22 17:22:06,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-07-22 17:22:06,968 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:22:06,969 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:22:06,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-22 17:22:06,969 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:22:06,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:22:06,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1914006118, now seen corresponding path program 1 times [2022-07-22 17:22:06,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:22:06,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851023375] [2022-07-22 17:22:06,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:22:06,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:22:06,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:07,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:22:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:07,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:22:07,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:07,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 17:22:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:07,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-22 17:22:07,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:07,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 17:22:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:07,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-22 17:22:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:07,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-22 17:22:07,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:07,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-22 17:22:07,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:07,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-22 17:22:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:07,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-22 17:22:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:07,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-22 17:22:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:07,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-22 17:22:07,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:07,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-22 17:22:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:07,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-22 17:22:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:07,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-22 17:22:07,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:07,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-22 17:22:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:07,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:22:07,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:07,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-22 17:22:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:07,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:22:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:07,094 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-22 17:22:07,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:22:07,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851023375] [2022-07-22 17:22:07,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851023375] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 17:22:07,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394858644] [2022-07-22 17:22:07,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:22:07,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 17:22:07,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 17:22:07,096 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) [2022-07-22 17:22:07,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-22 17:22:07,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:07,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 1360 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 17:22:07,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 17:22:07,415 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-22 17:22:07,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 17:22:07,510 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-22 17:22:07,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394858644] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 17:22:07,511 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 17:22:07,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2022-07-22 17:22:07,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261771404] [2022-07-22 17:22:07,511 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 17:22:07,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-22 17:22:07,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:22:07,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-22 17:22:07,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-07-22 17:22:07,513 INFO L87 Difference]: Start difference. First operand 538 states and 829 transitions. Second operand has 15 states, 14 states have (on average 11.642857142857142) internal successors, (163), 11 states have internal predecessors, (163), 4 states have call successors, (42), 6 states have call predecessors, (42), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) [2022-07-22 17:22:11,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:22:11,622 INFO L93 Difference]: Finished difference Result 2186 states and 3631 transitions. [2022-07-22 17:22:11,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-22 17:22:11,623 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.642857142857142) internal successors, (163), 11 states have internal predecessors, (163), 4 states have call successors, (42), 6 states have call predecessors, (42), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) Word has length 165 [2022-07-22 17:22:11,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:22:11,645 INFO L225 Difference]: With dead ends: 2186 [2022-07-22 17:22:11,646 INFO L226 Difference]: Without dead ends: 1679 [2022-07-22 17:22:11,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2022-07-22 17:22:11,649 INFO L413 NwaCegarLoop]: 925 mSDtfsCounter, 4635 mSDsluCounter, 3240 mSDsCounter, 0 mSdLazyCounter, 7130 mSolverCounterSat, 1849 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4637 SdHoareTripleChecker+Valid, 4165 SdHoareTripleChecker+Invalid, 8979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1849 IncrementalHoareTripleChecker+Valid, 7130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-22 17:22:11,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4637 Valid, 4165 Invalid, 8979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1849 Valid, 7130 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-22 17:22:11,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2022-07-22 17:22:11,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 981. [2022-07-22 17:22:11,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 780 states have (on average 1.6) internal successors, (1248), 788 states have internal predecessors, (1248), 167 states have call successors, (167), 29 states have call predecessors, (167), 33 states have return successors, (188), 165 states have call predecessors, (188), 166 states have call successors, (188) [2022-07-22 17:22:11,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1603 transitions. [2022-07-22 17:22:11,727 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1603 transitions. Word has length 165 [2022-07-22 17:22:11,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:22:11,727 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1603 transitions. [2022-07-22 17:22:11,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.642857142857142) internal successors, (163), 11 states have internal predecessors, (163), 4 states have call successors, (42), 6 states have call predecessors, (42), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) [2022-07-22 17:22:11,728 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1603 transitions. [2022-07-22 17:22:11,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-07-22 17:22:11,733 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:22:11,733 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:22:11,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-22 17:22:11,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 17:22:11,947 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:22:11,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:22:11,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1267507049, now seen corresponding path program 1 times [2022-07-22 17:22:11,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:22:11,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696867150] [2022-07-22 17:22:11,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:22:11,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:22:11,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:12,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:22:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:12,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:22:12,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:12,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 17:22:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:12,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-22 17:22:12,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:12,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 17:22:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:12,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-22 17:22:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:12,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-22 17:22:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:12,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-22 17:22:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:12,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-22 17:22:12,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:12,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-22 17:22:12,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:12,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-22 17:22:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:12,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-22 17:22:12,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:12,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-22 17:22:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:12,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-22 17:22:12,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:12,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-22 17:22:12,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:12,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-22 17:22:12,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:12,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:22:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:12,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-22 17:22:12,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:12,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:22:12,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:12,064 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-22 17:22:12,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:22:12,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696867150] [2022-07-22 17:22:12,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696867150] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:22:12,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:22:12,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 17:22:12,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742649183] [2022-07-22 17:22:12,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:22:12,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 17:22:12,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:22:12,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 17:22:12,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:22:12,067 INFO L87 Difference]: Start difference. First operand 981 states and 1603 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-22 17:22:13,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:22:13,730 INFO L93 Difference]: Finished difference Result 2537 states and 4239 transitions. [2022-07-22 17:22:13,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 17:22:13,731 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 168 [2022-07-22 17:22:13,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:22:13,740 INFO L225 Difference]: With dead ends: 2537 [2022-07-22 17:22:13,741 INFO L226 Difference]: Without dead ends: 1634 [2022-07-22 17:22:13,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-22 17:22:13,745 INFO L413 NwaCegarLoop]: 802 mSDtfsCounter, 1850 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 1440 mSolverCounterSat, 832 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1869 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 2272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 832 IncrementalHoareTripleChecker+Valid, 1440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-22 17:22:13,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1869 Valid, 1643 Invalid, 2272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [832 Valid, 1440 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-22 17:22:13,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2022-07-22 17:22:13,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1396. [2022-07-22 17:22:13,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1116 states have (on average 1.6200716845878136) internal successors, (1808), 1124 states have internal predecessors, (1808), 246 states have call successors, (246), 29 states have call predecessors, (246), 33 states have return successors, (277), 244 states have call predecessors, (277), 245 states have call successors, (277) [2022-07-22 17:22:13,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 2331 transitions. [2022-07-22 17:22:13,841 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 2331 transitions. Word has length 168 [2022-07-22 17:22:13,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:22:13,842 INFO L495 AbstractCegarLoop]: Abstraction has 1396 states and 2331 transitions. [2022-07-22 17:22:13,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-22 17:22:13,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 2331 transitions. [2022-07-22 17:22:13,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-22 17:22:13,849 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:22:13,850 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:22:13,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-22 17:22:13,850 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:22:13,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:22:13,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1970157718, now seen corresponding path program 1 times [2022-07-22 17:22:13,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:22:13,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350317451] [2022-07-22 17:22:13,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:22:13,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:22:13,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:13,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:22:13,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:13,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:22:13,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:13,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 17:22:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:13,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-22 17:22:13,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:13,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 17:22:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:13,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-22 17:22:13,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:13,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-22 17:22:13,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:13,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-22 17:22:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:13,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-22 17:22:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:13,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-22 17:22:13,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:13,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-22 17:22:13,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:13,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-22 17:22:13,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:13,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-22 17:22:13,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:13,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-22 17:22:13,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:13,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-22 17:22:13,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:13,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-22 17:22:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:13,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:22:13,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:13,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-22 17:22:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:13,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:22:13,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:13,989 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-22 17:22:13,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:22:13,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350317451] [2022-07-22 17:22:13,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350317451] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:22:13,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:22:13,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 17:22:13,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006183422] [2022-07-22 17:22:13,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:22:13,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 17:22:13,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:22:13,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 17:22:13,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:22:13,992 INFO L87 Difference]: Start difference. First operand 1396 states and 2331 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-22 17:22:15,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:22:15,700 INFO L93 Difference]: Finished difference Result 3576 states and 6052 transitions. [2022-07-22 17:22:15,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 17:22:15,700 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 169 [2022-07-22 17:22:15,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:22:15,713 INFO L225 Difference]: With dead ends: 3576 [2022-07-22 17:22:15,713 INFO L226 Difference]: Without dead ends: 2311 [2022-07-22 17:22:15,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-22 17:22:15,718 INFO L413 NwaCegarLoop]: 811 mSDtfsCounter, 1804 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 1433 mSolverCounterSat, 807 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1823 SdHoareTripleChecker+Valid, 1646 SdHoareTripleChecker+Invalid, 2240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 807 IncrementalHoareTripleChecker+Valid, 1433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-22 17:22:15,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1823 Valid, 1646 Invalid, 2240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [807 Valid, 1433 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-22 17:22:15,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2311 states. [2022-07-22 17:22:15,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2311 to 2073. [2022-07-22 17:22:15,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2073 states, 1674 states have (on average 1.6308243727598566) internal successors, (2730), 1682 states have internal predecessors, (2730), 365 states have call successors, (365), 29 states have call predecessors, (365), 33 states have return successors, (396), 363 states have call predecessors, (396), 364 states have call successors, (396) [2022-07-22 17:22:15,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 3491 transitions. [2022-07-22 17:22:15,863 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 3491 transitions. Word has length 169 [2022-07-22 17:22:15,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:22:15,863 INFO L495 AbstractCegarLoop]: Abstraction has 2073 states and 3491 transitions. [2022-07-22 17:22:15,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-22 17:22:15,864 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 3491 transitions. [2022-07-22 17:22:15,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-07-22 17:22:15,875 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:22:15,875 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:22:15,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-22 17:22:15,875 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:22:15,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:22:15,876 INFO L85 PathProgramCache]: Analyzing trace with hash -921327383, now seen corresponding path program 1 times [2022-07-22 17:22:15,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:22:15,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442452842] [2022-07-22 17:22:15,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:22:15,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:22:15,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:15,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:22:15,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:15,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:22:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:15,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 17:22:15,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:15,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-22 17:22:15,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:15,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 17:22:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:15,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-22 17:22:15,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:15,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-22 17:22:15,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:15,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-22 17:22:15,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:15,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-22 17:22:15,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:15,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-22 17:22:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:15,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-22 17:22:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:15,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-22 17:22:15,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:15,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-22 17:22:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:15,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-22 17:22:15,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:15,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-22 17:22:15,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:15,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-22 17:22:15,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:15,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:22:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:15,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-22 17:22:15,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:15,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:22:15,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:15,989 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-22 17:22:15,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:22:15,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442452842] [2022-07-22 17:22:15,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442452842] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:22:15,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:22:15,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 17:22:15,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647374092] [2022-07-22 17:22:15,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:22:15,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 17:22:15,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:22:15,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 17:22:15,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:22:15,992 INFO L87 Difference]: Start difference. First operand 2073 states and 3491 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-22 17:22:17,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:22:17,609 INFO L93 Difference]: Finished difference Result 5161 states and 8831 transitions. [2022-07-22 17:22:17,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 17:22:17,611 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 170 [2022-07-22 17:22:17,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:22:17,632 INFO L225 Difference]: With dead ends: 5161 [2022-07-22 17:22:17,633 INFO L226 Difference]: Without dead ends: 3354 [2022-07-22 17:22:17,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-22 17:22:17,642 INFO L413 NwaCegarLoop]: 815 mSDtfsCounter, 1784 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1462 mSolverCounterSat, 786 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1802 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 2248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 786 IncrementalHoareTripleChecker+Valid, 1462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-22 17:22:17,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1802 Valid, 1620 Invalid, 2248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [786 Valid, 1462 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-22 17:22:17,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3354 states. [2022-07-22 17:22:17,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3354 to 3116. [2022-07-22 17:22:17,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 2555 states have (on average 1.6391389432485324) internal successors, (4188), 2563 states have internal predecessors, (4188), 527 states have call successors, (527), 29 states have call predecessors, (527), 33 states have return successors, (574), 525 states have call predecessors, (574), 526 states have call successors, (574) [2022-07-22 17:22:17,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5289 transitions. [2022-07-22 17:22:17,866 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5289 transitions. Word has length 170 [2022-07-22 17:22:17,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:22:17,866 INFO L495 AbstractCegarLoop]: Abstraction has 3116 states and 5289 transitions. [2022-07-22 17:22:17,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-22 17:22:17,866 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5289 transitions. [2022-07-22 17:22:17,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-07-22 17:22:17,882 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:22:17,883 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:22:17,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-22 17:22:17,883 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:22:17,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:22:17,884 INFO L85 PathProgramCache]: Analyzing trace with hash 696120073, now seen corresponding path program 1 times [2022-07-22 17:22:17,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:22:17,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448611291] [2022-07-22 17:22:17,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:22:17,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:22:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:17,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:22:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:17,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:22:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:17,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 17:22:17,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:17,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-22 17:22:17,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:17,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 17:22:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:17,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-22 17:22:17,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:17,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 17:22:17,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:17,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-22 17:22:17,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:17,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-22 17:22:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:17,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-22 17:22:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:17,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-22 17:22:17,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:17,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-22 17:22:17,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:17,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-22 17:22:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:17,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-22 17:22:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:17,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-22 17:22:17,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:17,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-22 17:22:17,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:17,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:22:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:17,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-22 17:22:17,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:17,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:22:17,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:17,983 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-22 17:22:17,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:22:17,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448611291] [2022-07-22 17:22:17,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448611291] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:22:17,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:22:17,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 17:22:17,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244474126] [2022-07-22 17:22:17,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:22:17,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 17:22:17,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:22:17,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 17:22:17,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:22:17,986 INFO L87 Difference]: Start difference. First operand 3116 states and 5289 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-22 17:22:19,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:22:19,761 INFO L93 Difference]: Finished difference Result 7675 states and 13246 transitions. [2022-07-22 17:22:19,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 17:22:19,762 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 171 [2022-07-22 17:22:19,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:22:19,788 INFO L225 Difference]: With dead ends: 7675 [2022-07-22 17:22:19,789 INFO L226 Difference]: Without dead ends: 5044 [2022-07-22 17:22:19,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-22 17:22:19,797 INFO L413 NwaCegarLoop]: 820 mSDtfsCounter, 1773 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1463 mSolverCounterSat, 803 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1792 SdHoareTripleChecker+Valid, 1625 SdHoareTripleChecker+Invalid, 2266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 803 IncrementalHoareTripleChecker+Valid, 1463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-22 17:22:19,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1792 Valid, 1625 Invalid, 2266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [803 Valid, 1463 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-22 17:22:19,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5044 states. [2022-07-22 17:22:20,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5044 to 4806. [2022-07-22 17:22:20,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4806 states, 4000 states have (on average 1.645) internal successors, (6580), 4008 states have internal predecessors, (6580), 772 states have call successors, (772), 29 states have call predecessors, (772), 33 states have return successors, (845), 770 states have call predecessors, (845), 771 states have call successors, (845) [2022-07-22 17:22:20,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4806 states to 4806 states and 8197 transitions. [2022-07-22 17:22:20,138 INFO L78 Accepts]: Start accepts. Automaton has 4806 states and 8197 transitions. Word has length 171 [2022-07-22 17:22:20,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:22:20,139 INFO L495 AbstractCegarLoop]: Abstraction has 4806 states and 8197 transitions. [2022-07-22 17:22:20,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-22 17:22:20,140 INFO L276 IsEmpty]: Start isEmpty. Operand 4806 states and 8197 transitions. [2022-07-22 17:22:20,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-07-22 17:22:20,165 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:22:20,165 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:22:20,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-22 17:22:20,166 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:22:20,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:22:20,166 INFO L85 PathProgramCache]: Analyzing trace with hash -253267998, now seen corresponding path program 1 times [2022-07-22 17:22:20,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:22:20,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555643933] [2022-07-22 17:22:20,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:22:20,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:22:20,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:20,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:22:20,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:20,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:22:20,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:20,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 17:22:20,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:20,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-22 17:22:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:20,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 17:22:20,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:20,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-22 17:22:20,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:20,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-22 17:22:20,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:20,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 17:22:20,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:20,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-22 17:22:20,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:20,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-22 17:22:20,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:20,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-22 17:22:20,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:20,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-22 17:22:20,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:20,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-22 17:22:20,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:20,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-22 17:22:20,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:20,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-22 17:22:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:20,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-22 17:22:20,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:20,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-22 17:22:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:20,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-22 17:22:20,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:20,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-22 17:22:20,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:20,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:22:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:20,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-22 17:22:20,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:20,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:22:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:20,298 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-22 17:22:20,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:22:20,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555643933] [2022-07-22 17:22:20,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555643933] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:22:20,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:22:20,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 17:22:20,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452766617] [2022-07-22 17:22:20,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:22:20,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 17:22:20,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:22:20,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 17:22:20,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:22:20,301 INFO L87 Difference]: Start difference. First operand 4806 states and 8197 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-22 17:22:22,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:22:22,120 INFO L93 Difference]: Finished difference Result 11876 states and 20623 transitions. [2022-07-22 17:22:22,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 17:22:22,121 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 191 [2022-07-22 17:22:22,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:22:22,158 INFO L225 Difference]: With dead ends: 11876 [2022-07-22 17:22:22,159 INFO L226 Difference]: Without dead ends: 7887 [2022-07-22 17:22:22,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-22 17:22:22,172 INFO L413 NwaCegarLoop]: 781 mSDtfsCounter, 1925 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 855 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1943 SdHoareTripleChecker+Valid, 1602 SdHoareTripleChecker+Invalid, 2246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 855 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-22 17:22:22,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1943 Valid, 1602 Invalid, 2246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [855 Valid, 1391 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-22 17:22:22,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7887 states. [2022-07-22 17:22:22,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7887 to 7649. [2022-07-22 17:22:22,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7649 states, 6350 states have (on average 1.6439370078740156) internal successors, (10439), 6358 states have internal predecessors, (10439), 1265 states have call successors, (1265), 29 states have call predecessors, (1265), 33 states have return successors, (1382), 1263 states have call predecessors, (1382), 1264 states have call successors, (1382) [2022-07-22 17:22:22,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7649 states to 7649 states and 13086 transitions. [2022-07-22 17:22:22,670 INFO L78 Accepts]: Start accepts. Automaton has 7649 states and 13086 transitions. Word has length 191 [2022-07-22 17:22:22,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:22:22,671 INFO L495 AbstractCegarLoop]: Abstraction has 7649 states and 13086 transitions. [2022-07-22 17:22:22,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-22 17:22:22,671 INFO L276 IsEmpty]: Start isEmpty. Operand 7649 states and 13086 transitions. [2022-07-22 17:22:22,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-07-22 17:22:22,706 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:22:22,706 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:22:22,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-22 17:22:22,707 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:22:22,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:22:22,707 INFO L85 PathProgramCache]: Analyzing trace with hash 819222693, now seen corresponding path program 1 times [2022-07-22 17:22:22,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:22:22,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089391650] [2022-07-22 17:22:22,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:22:22,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:22:22,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:22,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:22:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:22,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:22:22,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:22,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 17:22:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:22,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-22 17:22:22,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:22,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 17:22:22,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:22,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-22 17:22:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:22,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-22 17:22:22,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:22,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-22 17:22:22,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:22,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-22 17:22:22,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:22,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-22 17:22:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:22,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-22 17:22:22,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:22,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-22 17:22:22,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:22,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-22 17:22:22,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:22,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-22 17:22:22,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:22,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-22 17:22:22,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:22,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-22 17:22:22,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:22,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:22:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:22,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-22 17:22:22,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:22,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:22:22,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:22,851 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-22 17:22:22,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:22:22,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089391650] [2022-07-22 17:22:22,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089391650] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:22:22,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:22:22,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 17:22:22,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248686259] [2022-07-22 17:22:22,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:22:22,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 17:22:22,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:22:22,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 17:22:22,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:22:22,854 INFO L87 Difference]: Start difference. First operand 7649 states and 13086 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-22 17:22:24,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:22:24,824 INFO L93 Difference]: Finished difference Result 19491 states and 33899 transitions. [2022-07-22 17:22:24,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 17:22:24,824 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 173 [2022-07-22 17:22:24,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:22:24,871 INFO L225 Difference]: With dead ends: 19491 [2022-07-22 17:22:24,871 INFO L226 Difference]: Without dead ends: 13061 [2022-07-22 17:22:24,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-22 17:22:24,892 INFO L413 NwaCegarLoop]: 803 mSDtfsCounter, 1824 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 1439 mSolverCounterSat, 814 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1842 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 2253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 814 IncrementalHoareTripleChecker+Valid, 1439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-22 17:22:24,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1842 Valid, 1617 Invalid, 2253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [814 Valid, 1439 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-22 17:22:24,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13061 states. [2022-07-22 17:22:25,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13061 to 12823. [2022-07-22 17:22:25,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12823 states, 10702 states have (on average 1.6447393010652214) internal successors, (17602), 10710 states have internal predecessors, (17602), 2087 states have call successors, (2087), 29 states have call predecessors, (2087), 33 states have return successors, (2282), 2085 states have call predecessors, (2282), 2086 states have call successors, (2282) [2022-07-22 17:22:25,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12823 states to 12823 states and 21971 transitions. [2022-07-22 17:22:25,696 INFO L78 Accepts]: Start accepts. Automaton has 12823 states and 21971 transitions. Word has length 173 [2022-07-22 17:22:25,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:22:25,697 INFO L495 AbstractCegarLoop]: Abstraction has 12823 states and 21971 transitions. [2022-07-22 17:22:25,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-22 17:22:25,697 INFO L276 IsEmpty]: Start isEmpty. Operand 12823 states and 21971 transitions. [2022-07-22 17:22:25,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-07-22 17:22:25,746 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:22:25,746 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:22:25,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-22 17:22:25,746 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:22:25,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:22:25,747 INFO L85 PathProgramCache]: Analyzing trace with hash -319875777, now seen corresponding path program 1 times [2022-07-22 17:22:25,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:22:25,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886641009] [2022-07-22 17:22:25,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:22:25,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:22:25,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:25,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:22:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:25,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:22:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:25,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 17:22:25,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:25,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-22 17:22:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:25,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 17:22:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:25,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-22 17:22:25,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:25,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-22 17:22:25,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:25,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-22 17:22:25,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:25,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-22 17:22:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:25,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-22 17:22:25,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:25,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-22 17:22:25,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:25,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-22 17:22:25,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:25,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-22 17:22:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:25,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-22 17:22:25,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:25,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-22 17:22:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:25,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-22 17:22:25,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:25,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:22:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:25,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-22 17:22:25,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:25,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:22:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:25,860 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-22 17:22:25,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:22:25,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886641009] [2022-07-22 17:22:25,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886641009] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:22:25,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:22:25,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 17:22:25,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953660769] [2022-07-22 17:22:25,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:22:25,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 17:22:25,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:22:25,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 17:22:25,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:22:25,864 INFO L87 Difference]: Start difference. First operand 12823 states and 21971 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-22 17:22:28,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:22:28,437 INFO L93 Difference]: Finished difference Result 30974 states and 53599 transitions. [2022-07-22 17:22:28,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 17:22:28,437 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 174 [2022-07-22 17:22:28,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:22:28,514 INFO L225 Difference]: With dead ends: 30974 [2022-07-22 17:22:28,515 INFO L226 Difference]: Without dead ends: 20374 [2022-07-22 17:22:28,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-22 17:22:28,547 INFO L413 NwaCegarLoop]: 778 mSDtfsCounter, 1863 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 844 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1882 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 2244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 844 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-22 17:22:28,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1882 Valid, 1558 Invalid, 2244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [844 Valid, 1400 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-22 17:22:28,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20374 states. [2022-07-22 17:22:29,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20374 to 20136. [2022-07-22 17:22:29,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20136 states, 16812 states have (on average 1.6207470854151795) internal successors, (27248), 16820 states have internal predecessors, (27248), 3290 states have call successors, (3290), 29 states have call predecessors, (3290), 33 states have return successors, (3629), 3288 states have call predecessors, (3629), 3289 states have call successors, (3629) [2022-07-22 17:22:29,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20136 states to 20136 states and 34167 transitions. [2022-07-22 17:22:29,620 INFO L78 Accepts]: Start accepts. Automaton has 20136 states and 34167 transitions. Word has length 174 [2022-07-22 17:22:29,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:22:29,621 INFO L495 AbstractCegarLoop]: Abstraction has 20136 states and 34167 transitions. [2022-07-22 17:22:29,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-22 17:22:29,621 INFO L276 IsEmpty]: Start isEmpty. Operand 20136 states and 34167 transitions. [2022-07-22 17:22:29,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-07-22 17:22:29,673 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:22:29,674 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:22:29,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-22 17:22:29,674 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:22:29,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:22:29,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1594675541, now seen corresponding path program 1 times [2022-07-22 17:22:29,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:22:29,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360706505] [2022-07-22 17:22:29,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:22:29,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:22:29,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:29,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:22:29,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:29,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:22:29,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:29,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 17:22:29,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:29,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-22 17:22:29,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:29,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 17:22:29,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:29,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-22 17:22:29,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:29,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-22 17:22:29,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:29,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-22 17:22:29,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:29,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-22 17:22:29,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:29,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-22 17:22:29,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:29,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-22 17:22:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:29,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-22 17:22:29,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:29,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-22 17:22:29,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:29,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-22 17:22:29,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:29,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-22 17:22:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:29,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-22 17:22:29,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:29,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-22 17:22:29,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:29,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-22 17:22:29,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:29,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-22 17:22:29,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:29,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:22:29,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:29,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-22 17:22:29,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:29,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:22:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:29,812 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-22 17:22:29,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:22:29,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360706505] [2022-07-22 17:22:29,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360706505] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:22:29,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:22:29,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 17:22:29,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935740167] [2022-07-22 17:22:29,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:22:29,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 17:22:29,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:22:29,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 17:22:29,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:22:29,816 INFO L87 Difference]: Start difference. First operand 20136 states and 34167 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-22 17:22:32,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:22:32,774 INFO L93 Difference]: Finished difference Result 53416 states and 92133 transitions. [2022-07-22 17:22:32,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 17:22:32,775 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 194 [2022-07-22 17:22:32,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:22:32,937 INFO L225 Difference]: With dead ends: 53416 [2022-07-22 17:22:32,937 INFO L226 Difference]: Without dead ends: 36180 [2022-07-22 17:22:32,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-22 17:22:32,994 INFO L413 NwaCegarLoop]: 846 mSDtfsCounter, 1767 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1495 mSolverCounterSat, 800 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1785 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 2295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 800 IncrementalHoareTripleChecker+Valid, 1495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-22 17:22:32,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1785 Valid, 1652 Invalid, 2295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [800 Valid, 1495 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-22 17:22:33,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36180 states. [2022-07-22 17:22:34,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36180 to 35942. [2022-07-22 17:22:34,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35942 states, 30168 states have (on average 1.61793953858393) internal successors, (48810), 30176 states have internal predecessors, (48810), 5740 states have call successors, (5740), 29 states have call predecessors, (5740), 33 states have return successors, (6353), 5738 states have call predecessors, (6353), 5739 states have call successors, (6353) [2022-07-22 17:22:35,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35942 states to 35942 states and 60903 transitions. [2022-07-22 17:22:35,069 INFO L78 Accepts]: Start accepts. Automaton has 35942 states and 60903 transitions. Word has length 194 [2022-07-22 17:22:35,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:22:35,069 INFO L495 AbstractCegarLoop]: Abstraction has 35942 states and 60903 transitions. [2022-07-22 17:22:35,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-22 17:22:35,069 INFO L276 IsEmpty]: Start isEmpty. Operand 35942 states and 60903 transitions. [2022-07-22 17:22:35,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-07-22 17:22:35,140 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:22:35,140 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:22:35,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-22 17:22:35,140 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:22:35,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:22:35,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1836023685, now seen corresponding path program 1 times [2022-07-22 17:22:35,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:22:35,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596461174] [2022-07-22 17:22:35,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:22:35,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:22:35,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:35,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:22:35,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:35,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:22:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:35,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 17:22:35,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:35,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-22 17:22:35,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:35,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 17:22:35,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:35,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-22 17:22:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:35,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-22 17:22:35,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:35,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-22 17:22:35,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:35,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-22 17:22:35,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:35,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-22 17:22:35,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:35,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-22 17:22:35,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:35,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-22 17:22:35,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:35,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-22 17:22:35,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:35,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-22 17:22:35,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:35,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-22 17:22:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:35,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-22 17:22:35,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:35,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:22:35,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:35,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-22 17:22:35,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:35,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:22:35,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:35,225 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-22 17:22:35,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:22:35,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596461174] [2022-07-22 17:22:35,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596461174] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:22:35,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:22:35,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 17:22:35,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501623578] [2022-07-22 17:22:35,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:22:35,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 17:22:35,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:22:35,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 17:22:35,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:22:35,227 INFO L87 Difference]: Start difference. First operand 35942 states and 60903 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-22 17:22:39,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:22:39,284 INFO L93 Difference]: Finished difference Result 98263 states and 168692 transitions. [2022-07-22 17:22:39,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 17:22:39,285 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 176 [2022-07-22 17:22:39,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:22:39,532 INFO L225 Difference]: With dead ends: 98263 [2022-07-22 17:22:39,532 INFO L226 Difference]: Without dead ends: 66177 [2022-07-22 17:22:39,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-22 17:22:39,637 INFO L413 NwaCegarLoop]: 793 mSDtfsCounter, 1840 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 850 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1859 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 2274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 850 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-22 17:22:39,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1859 Valid, 1603 Invalid, 2274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [850 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-22 17:22:39,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66177 states. [2022-07-22 17:22:42,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66177 to 65939. [2022-07-22 17:22:42,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65939 states, 55652 states have (on average 1.6140120750377345) internal successors, (89823), 55660 states have internal predecessors, (89823), 10253 states have call successors, (10253), 29 states have call predecessors, (10253), 33 states have return successors, (11398), 10251 states have call predecessors, (11398), 10252 states have call successors, (11398) [2022-07-22 17:22:43,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65939 states to 65939 states and 111474 transitions. [2022-07-22 17:22:43,067 INFO L78 Accepts]: Start accepts. Automaton has 65939 states and 111474 transitions. Word has length 176 [2022-07-22 17:22:43,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:22:43,067 INFO L495 AbstractCegarLoop]: Abstraction has 65939 states and 111474 transitions. [2022-07-22 17:22:43,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-22 17:22:43,068 INFO L276 IsEmpty]: Start isEmpty. Operand 65939 states and 111474 transitions. [2022-07-22 17:22:43,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-07-22 17:22:43,158 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:22:43,159 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:22:43,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-22 17:22:43,159 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:22:43,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:22:43,159 INFO L85 PathProgramCache]: Analyzing trace with hash 88813796, now seen corresponding path program 1 times [2022-07-22 17:22:43,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:22:43,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61090185] [2022-07-22 17:22:43,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:22:43,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:22:43,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:43,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:22:43,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:43,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:22:43,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:43,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 17:22:43,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:43,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-22 17:22:43,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:43,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 17:22:43,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:43,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-22 17:22:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:43,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 17:22:43,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:43,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-22 17:22:43,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:43,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-22 17:22:43,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:43,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-22 17:22:43,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:43,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-22 17:22:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:43,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-22 17:22:43,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:43,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-22 17:22:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:43,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-22 17:22:43,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:43,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-22 17:22:43,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:43,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-22 17:22:43,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:43,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:22:43,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:43,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-22 17:22:43,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:43,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:22:43,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:43,264 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-22 17:22:43,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:22:43,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61090185] [2022-07-22 17:22:43,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61090185] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:22:43,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:22:43,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 17:22:43,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154235724] [2022-07-22 17:22:43,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:22:43,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 17:22:43,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:22:43,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 17:22:43,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:22:43,267 INFO L87 Difference]: Start difference. First operand 65939 states and 111474 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-22 17:22:49,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:22:49,154 INFO L93 Difference]: Finished difference Result 123924 states and 213125 transitions. [2022-07-22 17:22:49,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 17:22:49,155 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 177 [2022-07-22 17:22:49,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:22:49,613 INFO L225 Difference]: With dead ends: 123924 [2022-07-22 17:22:49,613 INFO L226 Difference]: Without dead ends: 123665 [2022-07-22 17:22:49,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-22 17:22:49,672 INFO L413 NwaCegarLoop]: 818 mSDtfsCounter, 1740 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 814 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1759 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 2283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 814 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-22 17:22:49,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1759 Valid, 1624 Invalid, 2283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [814 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-22 17:22:49,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123665 states. [2022-07-22 17:22:55,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123665 to 123427. [2022-07-22 17:22:55,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123427 states, 104772 states have (on average 1.6089699538044515) internal successors, (168575), 104780 states have internal predecessors, (168575), 18621 states have call successors, (18621), 29 states have call predecessors, (18621), 33 states have return successors, (20812), 18619 states have call predecessors, (20812), 18620 states have call successors, (20812) [2022-07-22 17:22:56,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123427 states to 123427 states and 208008 transitions. [2022-07-22 17:22:56,399 INFO L78 Accepts]: Start accepts. Automaton has 123427 states and 208008 transitions. Word has length 177 [2022-07-22 17:22:56,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:22:56,400 INFO L495 AbstractCegarLoop]: Abstraction has 123427 states and 208008 transitions. [2022-07-22 17:22:56,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-22 17:22:56,400 INFO L276 IsEmpty]: Start isEmpty. Operand 123427 states and 208008 transitions. [2022-07-22 17:22:56,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-07-22 17:22:56,523 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:22:56,523 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:22:56,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-22 17:22:56,523 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:22:56,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:22:56,523 INFO L85 PathProgramCache]: Analyzing trace with hash -59218423, now seen corresponding path program 1 times [2022-07-22 17:22:56,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:22:56,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086117203] [2022-07-22 17:22:56,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:22:56,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:22:56,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:56,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:22:56,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:56,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:22:56,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:56,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 17:22:56,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:56,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-22 17:22:56,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:56,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 17:22:56,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:56,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-22 17:22:56,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:56,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-22 17:22:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:56,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-22 17:22:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:56,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-22 17:22:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:56,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-22 17:22:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:56,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-22 17:22:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:56,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-22 17:22:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:56,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-22 17:22:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:56,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-22 17:22:56,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:56,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-22 17:22:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:56,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-22 17:22:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:56,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-22 17:22:56,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:56,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-22 17:22:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:56,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-22 17:22:56,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:56,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:22:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:56,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-22 17:22:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:56,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 17:22:56,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:22:56,678 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-22 17:22:56,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:22:56,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086117203] [2022-07-22 17:22:56,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086117203] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:22:56,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:22:56,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-22 17:22:56,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934013383] [2022-07-22 17:22:56,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:22:56,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 17:22:56,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:22:56,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 17:22:56,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-22 17:22:56,680 INFO L87 Difference]: Start difference. First operand 123427 states and 208008 transitions. Second operand has 10 states, 10 states have (on average 11.8) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (24), 7 states have call predecessors, (24), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-22 17:23:09,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:23:09,322 INFO L93 Difference]: Finished difference Result 237737 states and 408515 transitions. [2022-07-22 17:23:09,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-22 17:23:09,323 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (24), 7 states have call predecessors, (24), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 197 [2022-07-22 17:23:09,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:23:10,285 INFO L225 Difference]: With dead ends: 237737 [2022-07-22 17:23:10,285 INFO L226 Difference]: Without dead ends: 237486 [2022-07-22 17:23:10,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=255, Invalid=737, Unknown=0, NotChecked=0, Total=992 [2022-07-22 17:23:10,395 INFO L413 NwaCegarLoop]: 863 mSDtfsCounter, 3807 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 4525 mSolverCounterSat, 1683 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3825 SdHoareTripleChecker+Valid, 2388 SdHoareTripleChecker+Invalid, 6208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1683 IncrementalHoareTripleChecker+Valid, 4525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-07-22 17:23:10,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3825 Valid, 2388 Invalid, 6208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1683 Valid, 4525 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-07-22 17:23:10,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237486 states.