./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec11_product07.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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_product07.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 ca488828ecb96ea32a61c8f7cc33f9cc148887f4e62691829b51b0a2976db03e --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 17:41:20,805 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 17:41:20,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 17:41:20,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 17:41:20,843 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 17:41:20,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 17:41:20,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 17:41:20,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 17:41:20,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 17:41:20,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 17:41:20,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 17:41:20,858 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 17:41:20,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 17:41:20,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 17:41:20,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 17:41:20,861 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 17:41:20,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 17:41:20,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 17:41:20,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 17:41:20,865 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 17:41:20,866 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 17:41:20,867 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 17:41:20,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 17:41:20,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 17:41:20,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 17:41:20,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 17:41:20,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 17:41:20,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 17:41:20,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 17:41:20,873 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 17:41:20,874 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 17:41:20,874 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 17:41:20,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 17:41:20,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 17:41:20,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 17:41:20,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 17:41:20,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 17:41:20,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 17:41:20,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 17:41:20,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 17:41:20,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 17:41:20,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 17:41:20,881 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 17:41:20,905 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 17:41:20,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 17:41:20,907 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 17:41:20,907 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 17:41:20,907 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 17:41:20,908 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 17:41:20,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 17:41:20,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 17:41:20,908 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 17:41:20,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 17:41:20,909 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 17:41:20,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 17:41:20,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 17:41:20,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 17:41:20,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 17:41:20,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 17:41:20,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 17:41:20,911 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 17:41:20,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 17:41:20,911 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 17:41:20,911 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 17:41:20,911 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 17:41:20,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 17:41:20,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 17:41:20,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 17:41:20,912 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 17:41:20,912 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 17:41:20,913 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 17:41:20,913 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 17:41:20,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 17:41:20,913 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 17:41:20,913 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 17:41:20,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 17:41:20,914 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca488828ecb96ea32a61c8f7cc33f9cc148887f4e62691829b51b0a2976db03e [2022-07-13 17:41:21,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 17:41:21,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 17:41:21,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 17:41:21,184 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 17:41:21,184 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 17:41:21,185 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec11_product07.cil.c [2022-07-13 17:41:21,240 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff59d1196/1a7e3214eb4c4722b376ad364b71c881/FLAG038dd19d7 [2022-07-13 17:41:21,657 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 17:41:21,658 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec11_product07.cil.c [2022-07-13 17:41:21,686 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff59d1196/1a7e3214eb4c4722b376ad364b71c881/FLAG038dd19d7 [2022-07-13 17:41:21,997 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff59d1196/1a7e3214eb4c4722b376ad364b71c881 [2022-07-13 17:41:21,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 17:41:22,002 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 17:41:22,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 17:41:22,006 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 17:41:22,009 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 17:41:22,010 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 05:41:21" (1/1) ... [2022-07-13 17:41:22,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e99ce18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:41:22, skipping insertion in model container [2022-07-13 17:41:22,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 05:41:21" (1/1) ... [2022-07-13 17:41:22,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 17:41:22,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 17:41:22,442 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_product07.cil.c[47468,47481] [2022-07-13 17:41:22,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 17:41:22,509 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 17:41:22,570 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_product07.cil.c[47468,47481] [2022-07-13 17:41:22,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 17:41:22,609 INFO L208 MainTranslator]: Completed translation [2022-07-13 17:41:22,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:41:22 WrapperNode [2022-07-13 17:41:22,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 17:41:22,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 17:41:22,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 17:41:22,611 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 17:41:22,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:41:22" (1/1) ... [2022-07-13 17:41:22,679 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:41:22" (1/1) ... [2022-07-13 17:41:22,723 INFO L137 Inliner]: procedures = 110, calls = 144, calls flagged for inlining = 36, calls inlined = 30, statements flattened = 601 [2022-07-13 17:41:22,729 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 17:41:22,730 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 17:41:22,730 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 17:41:22,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 17:41:22,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:41:22" (1/1) ... [2022-07-13 17:41:22,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:41:22" (1/1) ... [2022-07-13 17:41:22,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:41:22" (1/1) ... [2022-07-13 17:41:22,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:41:22" (1/1) ... [2022-07-13 17:41:22,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:41:22" (1/1) ... [2022-07-13 17:41:22,790 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:41:22" (1/1) ... [2022-07-13 17:41:22,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:41:22" (1/1) ... [2022-07-13 17:41:22,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 17:41:22,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 17:41:22,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 17:41:22,812 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 17:41:22,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:41:22" (1/1) ... [2022-07-13 17:41:22,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 17:41:22,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:41:22,845 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) [2022-07-13 17:41:22,847 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 [2022-07-13 17:41:22,872 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-07-13 17:41:22,872 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-07-13 17:41:22,872 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-07-13 17:41:22,872 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-07-13 17:41:22,873 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-07-13 17:41:22,873 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-07-13 17:41:22,873 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-07-13 17:41:22,873 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-07-13 17:41:22,873 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-07-13 17:41:22,873 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-07-13 17:41:22,873 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-07-13 17:41:22,874 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-07-13 17:41:22,874 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-07-13 17:41:22,874 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-07-13 17:41:22,874 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-07-13 17:41:22,874 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-07-13 17:41:22,874 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-07-13 17:41:22,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 17:41:22,875 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-07-13 17:41:22,875 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-07-13 17:41:22,875 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-07-13 17:41:22,875 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-07-13 17:41:22,875 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-07-13 17:41:22,875 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-07-13 17:41:22,876 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-07-13 17:41:22,876 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-07-13 17:41:22,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 17:41:22,876 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-07-13 17:41:22,876 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-07-13 17:41:22,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 17:41:22,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 17:41:23,017 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 17:41:23,018 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 17:41:23,615 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 17:41:23,630 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 17:41:23,632 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 17:41:23,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 05:41:23 BoogieIcfgContainer [2022-07-13 17:41:23,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 17:41:23,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 17:41:23,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 17:41:23,642 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 17:41:23,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 05:41:21" (1/3) ... [2022-07-13 17:41:23,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23eb87df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 05:41:23, skipping insertion in model container [2022-07-13 17:41:23,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:41:22" (2/3) ... [2022-07-13 17:41:23,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23eb87df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 05:41:23, skipping insertion in model container [2022-07-13 17:41:23,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 05:41:23" (3/3) ... [2022-07-13 17:41:23,648 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec11_product07.cil.c [2022-07-13 17:41:23,666 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 17:41:23,666 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 17:41:23,721 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 17:41:23,727 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@223404d6, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1c0e7ac3 [2022-07-13 17:41:23,731 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 17:41:23,735 INFO L276 IsEmpty]: Start isEmpty. Operand has 205 states, 165 states have (on average 1.5636363636363637) internal successors, (258), 168 states have internal predecessors, (258), 25 states have call successors, (25), 13 states have call predecessors, (25), 13 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2022-07-13 17:41:23,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-13 17:41:23,748 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:41:23,749 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:41:23,750 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:41:23,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:41:23,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1500515532, now seen corresponding path program 1 times [2022-07-13 17:41:23,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:41:23,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508953094] [2022-07-13 17:41:23,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:23,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:41:23,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:24,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:41:24,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:24,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:41:24,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:24,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:41:24,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:24,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 17:41:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:24,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 17:41:24,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:24,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-13 17:41:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:24,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 17:41:24,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:24,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-13 17:41:24,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:24,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-13 17:41:24,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:24,210 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-13 17:41:24,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:41:24,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508953094] [2022-07-13 17:41:24,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508953094] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:41:24,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330914936] [2022-07-13 17:41:24,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:24,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:41:24,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:41:24,216 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) [2022-07-13 17:41:24,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 17:41:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:24,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 856 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-13 17:41:24,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:41:24,561 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-13 17:41:24,564 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:41:24,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330914936] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:41:24,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:41:24,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2022-07-13 17:41:24,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380104839] [2022-07-13 17:41:24,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:41:24,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 17:41:24,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:41:24,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 17:41:24,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-13 17:41:24,614 INFO L87 Difference]: Start difference. First operand has 205 states, 165 states have (on average 1.5636363636363637) internal successors, (258), 168 states have internal predecessors, (258), 25 states have call successors, (25), 13 states have call predecessors, (25), 13 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 17:41:24,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:41:24,665 INFO L93 Difference]: Finished difference Result 321 states and 471 transitions. [2022-07-13 17:41:24,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 17:41:24,668 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 78 [2022-07-13 17:41:24,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:41:24,678 INFO L225 Difference]: With dead ends: 321 [2022-07-13 17:41:24,678 INFO L226 Difference]: Without dead ends: 198 [2022-07-13 17:41:24,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-13 17:41:24,684 INFO L413 NwaCegarLoop]: 304 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, 304 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 [2022-07-13 17:41:24,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:41:24,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-07-13 17:41:24,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2022-07-13 17:41:24,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 159 states have (on average 1.5534591194968554) internal successors, (247), 161 states have internal predecessors, (247), 25 states have call successors, (25), 13 states have call predecessors, (25), 13 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2022-07-13 17:41:24,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 296 transitions. [2022-07-13 17:41:24,734 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 296 transitions. Word has length 78 [2022-07-13 17:41:24,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:41:24,736 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 296 transitions. [2022-07-13 17:41:24,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 17:41:24,736 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 296 transitions. [2022-07-13 17:41:24,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-13 17:41:24,740 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:41:24,740 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:41:24,764 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-13 17:41:24,956 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 [2022-07-13 17:41:24,957 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:41:24,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:41:24,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1633118181, now seen corresponding path program 1 times [2022-07-13 17:41:24,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:41:24,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009036842] [2022-07-13 17:41:24,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:24,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:41:24,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:25,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:41:25,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:25,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:41:25,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:25,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:41:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:25,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 17:41:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:25,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-13 17:41:25,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:25,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-13 17:41:25,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:25,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 17:41:25,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:25,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 17:41:25,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:25,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-13 17:41:25,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:25,107 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-13 17:41:25,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:41:25,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009036842] [2022-07-13 17:41:25,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009036842] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:41:25,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242835219] [2022-07-13 17:41:25,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:25,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:41:25,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:41:25,116 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) [2022-07-13 17:41:25,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 17:41:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:25,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 857 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 17:41:25,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:41:25,458 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-13 17:41:25,463 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:41:25,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242835219] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:41:25,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:41:25,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-07-13 17:41:25,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943793619] [2022-07-13 17:41:25,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:41:25,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 17:41:25,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:41:25,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 17:41:25,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 17:41:25,479 INFO L87 Difference]: Start difference. First operand 198 states and 296 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 17:41:25,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:41:25,508 INFO L93 Difference]: Finished difference Result 311 states and 449 transitions. [2022-07-13 17:41:25,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 17:41:25,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 79 [2022-07-13 17:41:25,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:41:25,511 INFO L225 Difference]: With dead ends: 311 [2022-07-13 17:41:25,511 INFO L226 Difference]: Without dead ends: 201 [2022-07-13 17:41:25,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 17:41:25,514 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 1 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 586 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 [2022-07-13 17:41:25,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 586 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:41:25,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-07-13 17:41:25,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 200. [2022-07-13 17:41:25,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 161 states have (on average 1.546583850931677) internal successors, (249), 163 states have internal predecessors, (249), 25 states have call successors, (25), 13 states have call predecessors, (25), 13 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2022-07-13 17:41:25,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 298 transitions. [2022-07-13 17:41:25,530 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 298 transitions. Word has length 79 [2022-07-13 17:41:25,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:41:25,531 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 298 transitions. [2022-07-13 17:41:25,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 17:41:25,531 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 298 transitions. [2022-07-13 17:41:25,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-13 17:41:25,534 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:41:25,534 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:41:25,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-13 17:41:25,751 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 [2022-07-13 17:41:25,752 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:41:25,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:41:25,752 INFO L85 PathProgramCache]: Analyzing trace with hash 84057623, now seen corresponding path program 1 times [2022-07-13 17:41:25,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:41:25,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694044299] [2022-07-13 17:41:25,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:25,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:41:25,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:25,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:41:25,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:25,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:41:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:25,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:41:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:25,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-13 17:41:25,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:25,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:41:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:25,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-13 17:41:25,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:25,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-13 17:41:25,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:25,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-13 17:41:25,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:25,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-13 17:41:25,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:25,907 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-13 17:41:25,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:41:25,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694044299] [2022-07-13 17:41:25,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694044299] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:41:25,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784178584] [2022-07-13 17:41:25,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:25,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:41:25,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:41:25,916 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) [2022-07-13 17:41:25,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-13 17:41:26,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:26,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 870 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 17:41:26,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:41:26,271 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-13 17:41:26,271 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:41:26,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [784178584] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:41:26,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:41:26,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-07-13 17:41:26,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212008449] [2022-07-13 17:41:26,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:41:26,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 17:41:26,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:41:26,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 17:41:26,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-13 17:41:26,277 INFO L87 Difference]: Start difference. First operand 200 states and 298 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-13 17:41:26,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:41:26,351 INFO L93 Difference]: Finished difference Result 393 states and 589 transitions. [2022-07-13 17:41:26,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 17:41:26,353 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 84 [2022-07-13 17:41:26,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:41:26,355 INFO L225 Difference]: With dead ends: 393 [2022-07-13 17:41:26,356 INFO L226 Difference]: Without dead ends: 202 [2022-07-13 17:41:26,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-07-13 17:41:26,358 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 100 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 1041 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 [2022-07-13 17:41:26,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 1041 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:41:26,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-07-13 17:41:26,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2022-07-13 17:41:26,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 162 states have (on average 1.5432098765432098) internal successors, (250), 165 states have internal predecessors, (250), 25 states have call successors, (25), 13 states have call predecessors, (25), 14 states have return successors, (26), 23 states have call predecessors, (26), 24 states have call successors, (26) [2022-07-13 17:41:26,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 301 transitions. [2022-07-13 17:41:26,377 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 301 transitions. Word has length 84 [2022-07-13 17:41:26,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:41:26,377 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 301 transitions. [2022-07-13 17:41:26,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-13 17:41:26,378 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 301 transitions. [2022-07-13 17:41:26,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-13 17:41:26,381 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:41:26,381 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:41:26,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-13 17:41:26,587 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 [2022-07-13 17:41:26,588 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:41:26,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:41:26,588 INFO L85 PathProgramCache]: Analyzing trace with hash -642337077, now seen corresponding path program 1 times [2022-07-13 17:41:26,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:41:26,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503982473] [2022-07-13 17:41:26,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:26,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:41:26,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:26,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:41:26,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:26,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:41:26,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:26,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:41:26,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:26,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 17:41:26,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:26,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-13 17:41:26,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:26,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-13 17:41:26,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:26,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 17:41:26,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:26,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:41:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:26,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:41:26,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:26,715 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-13 17:41:26,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:41:26,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503982473] [2022-07-13 17:41:26,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503982473] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:41:26,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:41:26,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 17:41:26,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621853719] [2022-07-13 17:41:26,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:41:26,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 17:41:26,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:41:26,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 17:41:26,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-13 17:41:26,720 INFO L87 Difference]: Start difference. First operand 202 states and 301 transitions. Second operand has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-13 17:41:27,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:41:27,673 INFO L93 Difference]: Finished difference Result 466 states and 718 transitions. [2022-07-13 17:41:27,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 17:41:27,674 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 85 [2022-07-13 17:41:27,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:41:27,677 INFO L225 Difference]: With dead ends: 466 [2022-07-13 17:41:27,677 INFO L226 Difference]: Without dead ends: 283 [2022-07-13 17:41:27,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-07-13 17:41:27,679 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 540 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-13 17:41:27,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 837 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-13 17:41:27,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-07-13 17:41:27,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 202. [2022-07-13 17:41:27,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 162 states have (on average 1.5432098765432098) internal successors, (250), 165 states have internal predecessors, (250), 25 states have call successors, (25), 13 states have call predecessors, (25), 14 states have return successors, (25), 23 states have call predecessors, (25), 24 states have call successors, (25) [2022-07-13 17:41:27,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 300 transitions. [2022-07-13 17:41:27,706 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 300 transitions. Word has length 85 [2022-07-13 17:41:27,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:41:27,707 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 300 transitions. [2022-07-13 17:41:27,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-13 17:41:27,707 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 300 transitions. [2022-07-13 17:41:27,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-13 17:41:27,710 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:41:27,710 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:41:27,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 17:41:27,710 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:41:27,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:41:27,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1327160289, now seen corresponding path program 2 times [2022-07-13 17:41:27,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:41:27,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915716349] [2022-07-13 17:41:27,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:27,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:41:27,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:27,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:41:27,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:27,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:41:27,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:27,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:41:27,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:27,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 17:41:27,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:27,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-13 17:41:27,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:27,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 17:41:27,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:27,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-13 17:41:27,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:27,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-13 17:41:27,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:27,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-13 17:41:27,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:27,796 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-13 17:41:27,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:41:27,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915716349] [2022-07-13 17:41:27,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915716349] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:41:27,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:41:27,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 17:41:27,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589323973] [2022-07-13 17:41:27,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:41:27,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 17:41:27,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:41:27,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 17:41:27,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-13 17:41:27,804 INFO L87 Difference]: Start difference. First operand 202 states and 300 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-13 17:41:28,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:41:28,678 INFO L93 Difference]: Finished difference Result 468 states and 721 transitions. [2022-07-13 17:41:28,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 17:41:28,679 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 86 [2022-07-13 17:41:28,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:41:28,682 INFO L225 Difference]: With dead ends: 468 [2022-07-13 17:41:28,682 INFO L226 Difference]: Without dead ends: 285 [2022-07-13 17:41:28,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-07-13 17:41:28,683 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 536 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 1099 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 1099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-13 17:41:28,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 839 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 1099 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-13 17:41:28,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-07-13 17:41:28,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 204. [2022-07-13 17:41:28,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 163 states have (on average 1.539877300613497) internal successors, (251), 167 states have internal predecessors, (251), 25 states have call successors, (25), 13 states have call predecessors, (25), 15 states have return successors, (27), 23 states have call predecessors, (27), 24 states have call successors, (27) [2022-07-13 17:41:28,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 303 transitions. [2022-07-13 17:41:28,732 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 303 transitions. Word has length 86 [2022-07-13 17:41:28,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:41:28,734 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 303 transitions. [2022-07-13 17:41:28,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-13 17:41:28,734 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 303 transitions. [2022-07-13 17:41:28,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-13 17:41:28,736 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:41:28,737 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:41:28,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 17:41:28,737 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:41:28,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:41:28,738 INFO L85 PathProgramCache]: Analyzing trace with hash 929658022, now seen corresponding path program 1 times [2022-07-13 17:41:28,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:41:28,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931962247] [2022-07-13 17:41:28,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:28,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:41:28,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:28,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:41:28,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:28,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:41:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:28,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:41:28,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:28,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:41:28,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:28,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-13 17:41:28,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:28,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 17:41:28,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:28,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 17:41:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:28,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 17:41:28,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:28,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-13 17:41:28,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:28,833 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-13 17:41:28,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:41:28,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931962247] [2022-07-13 17:41:28,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931962247] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:41:28,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006520811] [2022-07-13 17:41:28,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:28,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:41:28,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:41:28,840 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) [2022-07-13 17:41:28,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-13 17:41:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:29,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 17:41:29,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:41:29,075 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-13 17:41:29,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 17:41:29,132 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-13 17:41:29,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006520811] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 17:41:29,133 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 17:41:29,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2022-07-13 17:41:29,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530034271] [2022-07-13 17:41:29,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 17:41:29,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 17:41:29,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:41:29,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 17:41:29,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-07-13 17:41:29,135 INFO L87 Difference]: Start difference. First operand 204 states and 303 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 7 states have internal predecessors, (87), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-13 17:41:29,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:41:29,939 INFO L93 Difference]: Finished difference Result 563 states and 896 transitions. [2022-07-13 17:41:29,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 17:41:29,940 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 7 states have internal predecessors, (87), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 87 [2022-07-13 17:41:29,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:41:29,943 INFO L225 Difference]: With dead ends: 563 [2022-07-13 17:41:29,944 INFO L226 Difference]: Without dead ends: 453 [2022-07-13 17:41:29,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-07-13 17:41:29,945 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 788 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 886 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 17:41:29,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 1048 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 886 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 17:41:29,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-07-13 17:41:29,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 348. [2022-07-13 17:41:29,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 298 states have (on average 1.667785234899329) internal successors, (497), 302 states have internal predecessors, (497), 34 states have call successors, (34), 13 states have call predecessors, (34), 15 states have return successors, (36), 32 states have call predecessors, (36), 33 states have call successors, (36) [2022-07-13 17:41:29,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 567 transitions. [2022-07-13 17:41:29,976 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 567 transitions. Word has length 87 [2022-07-13 17:41:29,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:41:29,976 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 567 transitions. [2022-07-13 17:41:29,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 7 states have internal predecessors, (87), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-13 17:41:29,977 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 567 transitions. [2022-07-13 17:41:29,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-13 17:41:29,978 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:41:29,978 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:41:30,002 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-07-13 17:41:30,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:41:30,195 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:41:30,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:41:30,196 INFO L85 PathProgramCache]: Analyzing trace with hash 2057624913, now seen corresponding path program 1 times [2022-07-13 17:41:30,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:41:30,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098275109] [2022-07-13 17:41:30,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:30,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:41:30,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:30,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:41:30,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:30,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:41:30,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:30,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:41:30,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:30,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 17:41:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:30,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-13 17:41:30,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:30,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-13 17:41:30,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:30,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-13 17:41:30,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:30,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-13 17:41:30,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:30,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-13 17:41:30,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:30,286 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-13 17:41:30,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:41:30,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098275109] [2022-07-13 17:41:30,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098275109] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:41:30,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:41:30,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:41:30,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120695210] [2022-07-13 17:41:30,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:41:30,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:41:30,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:41:30,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:41:30,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:41:30,289 INFO L87 Difference]: Start difference. First operand 348 states and 567 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 17:41:30,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:41:30,949 INFO L93 Difference]: Finished difference Result 900 states and 1512 transitions. [2022-07-13 17:41:30,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:41:30,950 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 94 [2022-07-13 17:41:30,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:41:30,955 INFO L225 Difference]: With dead ends: 900 [2022-07-13 17:41:30,955 INFO L226 Difference]: Without dead ends: 580 [2022-07-13 17:41:30,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-13 17:41:30,959 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 531 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 17:41:30,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [543 Valid, 760 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 17:41:30,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2022-07-13 17:41:30,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 491. [2022-07-13 17:41:30,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 432 states have (on average 1.7037037037037037) internal successors, (736), 436 states have internal predecessors, (736), 43 states have call successors, (43), 13 states have call predecessors, (43), 15 states have return successors, (45), 41 states have call predecessors, (45), 42 states have call successors, (45) [2022-07-13 17:41:30,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 824 transitions. [2022-07-13 17:41:30,996 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 824 transitions. Word has length 94 [2022-07-13 17:41:30,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:41:30,997 INFO L495 AbstractCegarLoop]: Abstraction has 491 states and 824 transitions. [2022-07-13 17:41:30,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 17:41:30,997 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 824 transitions. [2022-07-13 17:41:31,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-13 17:41:31,003 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:41:31,004 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:41:31,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 17:41:31,004 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:41:31,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:41:31,005 INFO L85 PathProgramCache]: Analyzing trace with hash 581156798, now seen corresponding path program 1 times [2022-07-13 17:41:31,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:41:31,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478470180] [2022-07-13 17:41:31,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:31,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:41:31,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:41:31,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:41:31,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:41:31,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-13 17:41:31,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 17:41:31,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-13 17:41:31,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-13 17:41:31,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-13 17:41:31,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-13 17:41:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,086 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-13 17:41:31,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:41:31,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478470180] [2022-07-13 17:41:31,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478470180] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:41:31,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:41:31,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:41:31,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216641546] [2022-07-13 17:41:31,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:41:31,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:41:31,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:41:31,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:41:31,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:41:31,088 INFO L87 Difference]: Start difference. First operand 491 states and 824 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 17:41:31,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:41:31,763 INFO L93 Difference]: Finished difference Result 1237 states and 2126 transitions. [2022-07-13 17:41:31,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:41:31,764 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 95 [2022-07-13 17:41:31,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:41:31,767 INFO L225 Difference]: With dead ends: 1237 [2022-07-13 17:41:31,767 INFO L226 Difference]: Without dead ends: 792 [2022-07-13 17:41:31,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-13 17:41:31,769 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 529 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 17:41:31,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 727 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 17:41:31,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2022-07-13 17:41:31,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 703. [2022-07-13 17:41:31,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 629 states have (on average 1.7297297297297298) internal successors, (1088), 633 states have internal predecessors, (1088), 58 states have call successors, (58), 13 states have call predecessors, (58), 15 states have return successors, (60), 56 states have call predecessors, (60), 57 states have call successors, (60) [2022-07-13 17:41:31,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 1206 transitions. [2022-07-13 17:41:31,800 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 1206 transitions. Word has length 95 [2022-07-13 17:41:31,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:41:31,800 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 1206 transitions. [2022-07-13 17:41:31,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 17:41:31,801 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 1206 transitions. [2022-07-13 17:41:31,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-13 17:41:31,803 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:41:31,803 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:41:31,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 17:41:31,804 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:41:31,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:41:31,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1505401043, now seen corresponding path program 1 times [2022-07-13 17:41:31,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:41:31,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282275014] [2022-07-13 17:41:31,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:31,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:41:31,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:41:31,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:41:31,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:41:31,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-13 17:41:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 17:41:31,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 17:41:31,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-13 17:41:31,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:41:31,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-13 17:41:31,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:31,889 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-13 17:41:31,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:41:31,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282275014] [2022-07-13 17:41:31,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282275014] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:41:31,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:41:31,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:41:31,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52859867] [2022-07-13 17:41:31,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:41:31,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:41:31,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:41:31,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:41:31,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:41:31,892 INFO L87 Difference]: Start difference. First operand 703 states and 1206 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 17:41:32,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:41:32,539 INFO L93 Difference]: Finished difference Result 1793 states and 3126 transitions. [2022-07-13 17:41:32,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:41:32,539 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 96 [2022-07-13 17:41:32,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:41:32,545 INFO L225 Difference]: With dead ends: 1793 [2022-07-13 17:41:32,545 INFO L226 Difference]: Without dead ends: 1155 [2022-07-13 17:41:32,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-13 17:41:32,547 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 527 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 17:41:32,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 734 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 17:41:32,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2022-07-13 17:41:32,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 1066. [2022-07-13 17:41:32,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1066 states, 968 states have (on average 1.737603305785124) internal successors, (1682), 972 states have internal predecessors, (1682), 82 states have call successors, (82), 13 states have call predecessors, (82), 15 states have return successors, (84), 80 states have call predecessors, (84), 81 states have call successors, (84) [2022-07-13 17:41:32,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 1848 transitions. [2022-07-13 17:41:32,590 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 1848 transitions. Word has length 96 [2022-07-13 17:41:32,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:41:32,591 INFO L495 AbstractCegarLoop]: Abstraction has 1066 states and 1848 transitions. [2022-07-13 17:41:32,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 17:41:32,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 1848 transitions. [2022-07-13 17:41:32,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-13 17:41:32,594 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:41:32,595 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:41:32,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-13 17:41:32,595 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:41:32,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:41:32,596 INFO L85 PathProgramCache]: Analyzing trace with hash -2021292720, now seen corresponding path program 1 times [2022-07-13 17:41:32,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:41:32,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200201729] [2022-07-13 17:41:32,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:32,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:41:32,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:32,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:41:32,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:32,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:41:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:32,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:41:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:32,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:41:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:32,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-13 17:41:32,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:32,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-13 17:41:32,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:32,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 17:41:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:32,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-13 17:41:32,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:32,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:41:32,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:32,660 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-13 17:41:32,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:41:32,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200201729] [2022-07-13 17:41:32,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200201729] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:41:32,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:41:32,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:41:32,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496383254] [2022-07-13 17:41:32,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:41:32,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:41:32,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:41:32,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:41:32,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:41:32,662 INFO L87 Difference]: Start difference. First operand 1066 states and 1848 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 17:41:33,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:41:33,260 INFO L93 Difference]: Finished difference Result 2693 states and 4729 transitions. [2022-07-13 17:41:33,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:41:33,261 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 97 [2022-07-13 17:41:33,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:41:33,269 INFO L225 Difference]: With dead ends: 2693 [2022-07-13 17:41:33,269 INFO L226 Difference]: Without dead ends: 1740 [2022-07-13 17:41:33,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-13 17:41:33,272 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 525 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 17:41:33,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 757 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 17:41:33,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1740 states. [2022-07-13 17:41:33,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1740 to 1651. [2022-07-13 17:41:33,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1651 states, 1514 states have (on average 1.737120211360634) internal successors, (2630), 1518 states have internal predecessors, (2630), 121 states have call successors, (121), 13 states have call predecessors, (121), 15 states have return successors, (123), 119 states have call predecessors, (123), 120 states have call successors, (123) [2022-07-13 17:41:33,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1651 states to 1651 states and 2874 transitions. [2022-07-13 17:41:33,339 INFO L78 Accepts]: Start accepts. Automaton has 1651 states and 2874 transitions. Word has length 97 [2022-07-13 17:41:33,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:41:33,339 INFO L495 AbstractCegarLoop]: Abstraction has 1651 states and 2874 transitions. [2022-07-13 17:41:33,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 17:41:33,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 2874 transitions. [2022-07-13 17:41:33,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-13 17:41:33,345 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:41:33,345 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:41:33,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-13 17:41:33,345 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:41:33,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:41:33,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1137203499, now seen corresponding path program 1 times [2022-07-13 17:41:33,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:41:33,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016302225] [2022-07-13 17:41:33,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:33,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:41:33,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:33,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:41:33,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:33,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:41:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:33,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:41:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:33,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-13 17:41:33,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:33,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 17:41:33,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:33,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 17:41:33,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:33,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 17:41:33,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:33,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-13 17:41:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:33,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-13 17:41:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:33,426 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-13 17:41:33,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:41:33,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016302225] [2022-07-13 17:41:33,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016302225] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:41:33,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:41:33,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:41:33,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082622263] [2022-07-13 17:41:33,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:41:33,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:41:33,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:41:33,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:41:33,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:41:33,429 INFO L87 Difference]: Start difference. First operand 1651 states and 2874 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 17:41:34,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:41:34,076 INFO L93 Difference]: Finished difference Result 4173 states and 7349 transitions. [2022-07-13 17:41:34,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:41:34,076 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 98 [2022-07-13 17:41:34,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:41:34,090 INFO L225 Difference]: With dead ends: 4173 [2022-07-13 17:41:34,090 INFO L226 Difference]: Without dead ends: 2715 [2022-07-13 17:41:34,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-13 17:41:34,095 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 522 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 17:41:34,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 759 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 17:41:34,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2715 states. [2022-07-13 17:41:34,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2715 to 2626. [2022-07-13 17:41:34,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2626 states, 2423 states have (on average 1.7329756500206355) internal successors, (4199), 2427 states have internal predecessors, (4199), 187 states have call successors, (187), 13 states have call predecessors, (187), 15 states have return successors, (189), 185 states have call predecessors, (189), 186 states have call successors, (189) [2022-07-13 17:41:34,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2626 states to 2626 states and 4575 transitions. [2022-07-13 17:41:34,241 INFO L78 Accepts]: Start accepts. Automaton has 2626 states and 4575 transitions. Word has length 98 [2022-07-13 17:41:34,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:41:34,242 INFO L495 AbstractCegarLoop]: Abstraction has 2626 states and 4575 transitions. [2022-07-13 17:41:34,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 17:41:34,243 INFO L276 IsEmpty]: Start isEmpty. Operand 2626 states and 4575 transitions. [2022-07-13 17:41:34,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-13 17:41:34,254 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:41:34,254 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:41:34,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-13 17:41:34,255 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:41:34,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:41:34,255 INFO L85 PathProgramCache]: Analyzing trace with hash -378543282, now seen corresponding path program 1 times [2022-07-13 17:41:34,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:41:34,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656771551] [2022-07-13 17:41:34,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:34,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:41:34,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:34,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:41:34,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:34,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:41:34,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:34,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:41:34,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:34,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-13 17:41:34,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:34,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 17:41:34,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:34,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 17:41:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:34,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-13 17:41:34,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:34,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-13 17:41:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:34,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-13 17:41:34,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:34,346 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-13 17:41:34,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:41:34,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656771551] [2022-07-13 17:41:34,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656771551] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:41:34,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:41:34,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:41:34,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339504750] [2022-07-13 17:41:34,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:41:34,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:41:34,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:41:34,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:41:34,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:41:34,350 INFO L87 Difference]: Start difference. First operand 2626 states and 4575 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 17:41:35,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:41:35,010 INFO L93 Difference]: Finished difference Result 6723 states and 11841 transitions. [2022-07-13 17:41:35,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:41:35,010 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 99 [2022-07-13 17:41:35,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:41:35,032 INFO L225 Difference]: With dead ends: 6723 [2022-07-13 17:41:35,032 INFO L226 Difference]: Without dead ends: 4410 [2022-07-13 17:41:35,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-13 17:41:35,039 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 521 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 17:41:35,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 734 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 17:41:35,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4410 states. [2022-07-13 17:41:35,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4410 to 4321. [2022-07-13 17:41:35,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4321 states, 4001 states have (on average 1.7275681079730068) internal successors, (6912), 4005 states have internal predecessors, (6912), 304 states have call successors, (304), 13 states have call predecessors, (304), 15 states have return successors, (306), 302 states have call predecessors, (306), 303 states have call successors, (306) [2022-07-13 17:41:35,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4321 states to 4321 states and 7522 transitions. [2022-07-13 17:41:35,250 INFO L78 Accepts]: Start accepts. Automaton has 4321 states and 7522 transitions. Word has length 99 [2022-07-13 17:41:35,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:41:35,252 INFO L495 AbstractCegarLoop]: Abstraction has 4321 states and 7522 transitions. [2022-07-13 17:41:35,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 17:41:35,253 INFO L276 IsEmpty]: Start isEmpty. Operand 4321 states and 7522 transitions. [2022-07-13 17:41:35,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-13 17:41:35,267 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:41:35,268 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:41:35,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-13 17:41:35,268 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:41:35,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:41:35,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1636754647, now seen corresponding path program 1 times [2022-07-13 17:41:35,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:41:35,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372521145] [2022-07-13 17:41:35,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:35,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:41:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:35,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:41:35,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:35,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:41:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:35,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:41:35,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:35,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 17:41:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:35,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-13 17:41:35,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:35,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-13 17:41:35,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:35,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-13 17:41:35,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:35,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-13 17:41:35,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:35,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-13 17:41:35,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:35,356 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-13 17:41:35,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:41:35,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372521145] [2022-07-13 17:41:35,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372521145] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:41:35,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:41:35,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:41:35,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890243980] [2022-07-13 17:41:35,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:41:35,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:41:35,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:41:35,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:41:35,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:41:35,358 INFO L87 Difference]: Start difference. First operand 4321 states and 7522 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 17:41:36,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:41:36,073 INFO L93 Difference]: Finished difference Result 11315 states and 19892 transitions. [2022-07-13 17:41:36,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:41:36,074 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 100 [2022-07-13 17:41:36,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:41:36,110 INFO L225 Difference]: With dead ends: 11315 [2022-07-13 17:41:36,110 INFO L226 Difference]: Without dead ends: 7475 [2022-07-13 17:41:36,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-13 17:41:36,123 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 520 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 17:41:36,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 733 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 17:41:36,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7475 states. [2022-07-13 17:41:36,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7475 to 7386. [2022-07-13 17:41:36,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7386 states, 6850 states have (on average 1.7214598540145984) internal successors, (11792), 6854 states have internal predecessors, (11792), 520 states have call successors, (520), 13 states have call predecessors, (520), 15 states have return successors, (522), 518 states have call predecessors, (522), 519 states have call successors, (522) [2022-07-13 17:41:36,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7386 states to 7386 states and 12834 transitions. [2022-07-13 17:41:36,450 INFO L78 Accepts]: Start accepts. Automaton has 7386 states and 12834 transitions. Word has length 100 [2022-07-13 17:41:36,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:41:36,450 INFO L495 AbstractCegarLoop]: Abstraction has 7386 states and 12834 transitions. [2022-07-13 17:41:36,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 17:41:36,451 INFO L276 IsEmpty]: Start isEmpty. Operand 7386 states and 12834 transitions. [2022-07-13 17:41:36,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-13 17:41:36,473 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:41:36,473 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:41:36,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-13 17:41:36,473 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:41:36,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:41:36,474 INFO L85 PathProgramCache]: Analyzing trace with hash -591527604, now seen corresponding path program 1 times [2022-07-13 17:41:36,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:41:36,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287295700] [2022-07-13 17:41:36,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:36,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:41:36,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:41:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:41:36,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:41:36,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 17:41:36,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:41:36,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-13 17:41:36,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-13 17:41:36,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-13 17:41:36,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-13 17:41:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:36,582 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-13 17:41:36,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:41:36,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287295700] [2022-07-13 17:41:36,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287295700] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:41:36,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:41:36,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:41:36,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586557070] [2022-07-13 17:41:36,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:41:36,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:41:36,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:41:36,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:41:36,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:41:36,584 INFO L87 Difference]: Start difference. First operand 7386 states and 12834 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 17:41:37,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:41:37,458 INFO L93 Difference]: Finished difference Result 16885 states and 29339 transitions. [2022-07-13 17:41:37,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:41:37,459 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 101 [2022-07-13 17:41:37,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:41:37,496 INFO L225 Difference]: With dead ends: 16885 [2022-07-13 17:41:37,496 INFO L226 Difference]: Without dead ends: 10726 [2022-07-13 17:41:37,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-13 17:41:37,513 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 516 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 17:41:37,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 706 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 17:41:37,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10726 states. [2022-07-13 17:41:37,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10726 to 10637. [2022-07-13 17:41:37,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10637 states, 10101 states have (on average 1.6967626967626968) internal successors, (17139), 10105 states have internal predecessors, (17139), 520 states have call successors, (520), 13 states have call predecessors, (520), 15 states have return successors, (522), 518 states have call predecessors, (522), 519 states have call successors, (522) [2022-07-13 17:41:37,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10637 states to 10637 states and 18181 transitions. [2022-07-13 17:41:37,961 INFO L78 Accepts]: Start accepts. Automaton has 10637 states and 18181 transitions. Word has length 101 [2022-07-13 17:41:37,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:41:37,962 INFO L495 AbstractCegarLoop]: Abstraction has 10637 states and 18181 transitions. [2022-07-13 17:41:37,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 17:41:37,962 INFO L276 IsEmpty]: Start isEmpty. Operand 10637 states and 18181 transitions. [2022-07-13 17:41:37,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-13 17:41:37,988 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:41:37,988 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:41:37,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-13 17:41:37,989 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:41:37,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:41:37,989 INFO L85 PathProgramCache]: Analyzing trace with hash 843346649, now seen corresponding path program 1 times [2022-07-13 17:41:37,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:41:37,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530386377] [2022-07-13 17:41:37,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:37,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:41:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:38,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:41:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:38,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:41:38,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:38,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:41:38,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:38,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-13 17:41:38,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:38,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 17:41:38,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:38,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:41:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:38,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:41:38,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:38,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-13 17:41:38,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:38,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-13 17:41:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:38,050 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-13 17:41:38,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:41:38,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530386377] [2022-07-13 17:41:38,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530386377] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:41:38,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:41:38,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:41:38,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263192519] [2022-07-13 17:41:38,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:41:38,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:41:38,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:41:38,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:41:38,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:41:38,053 INFO L87 Difference]: Start difference. First operand 10637 states and 18181 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 17:41:39,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:41:39,060 INFO L93 Difference]: Finished difference Result 28425 states and 48859 transitions. [2022-07-13 17:41:39,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:41:39,061 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 102 [2022-07-13 17:41:39,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:41:39,121 INFO L225 Difference]: With dead ends: 28425 [2022-07-13 17:41:39,122 INFO L226 Difference]: Without dead ends: 19303 [2022-07-13 17:41:39,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-13 17:41:39,147 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 515 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 17:41:39,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 756 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 17:41:39,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19303 states. [2022-07-13 17:41:39,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19303 to 19214. [2022-07-13 17:41:39,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19214 states, 18267 states have (on average 1.6845130563310888) internal successors, (30771), 18271 states have internal predecessors, (30771), 931 states have call successors, (931), 13 states have call predecessors, (931), 15 states have return successors, (933), 929 states have call predecessors, (933), 930 states have call successors, (933) [2022-07-13 17:41:39,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19214 states to 19214 states and 32635 transitions. [2022-07-13 17:41:39,889 INFO L78 Accepts]: Start accepts. Automaton has 19214 states and 32635 transitions. Word has length 102 [2022-07-13 17:41:39,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:41:39,890 INFO L495 AbstractCegarLoop]: Abstraction has 19214 states and 32635 transitions. [2022-07-13 17:41:39,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 17:41:39,890 INFO L276 IsEmpty]: Start isEmpty. Operand 19214 states and 32635 transitions. [2022-07-13 17:41:39,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-13 17:41:39,918 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:41:39,918 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:41:39,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-13 17:41:39,918 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:41:39,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:41:39,919 INFO L85 PathProgramCache]: Analyzing trace with hash 666881196, now seen corresponding path program 2 times [2022-07-13 17:41:39,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:41:39,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649391596] [2022-07-13 17:41:39,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:39,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:41:39,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:39,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:41:39,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:39,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:41:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:39,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:41:39,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:39,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-13 17:41:39,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:39,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 17:41:39,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:39,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:41:39,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:39,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:41:39,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:39,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-13 17:41:40,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:40,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-13 17:41:40,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:40,002 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-13 17:41:40,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:41:40,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649391596] [2022-07-13 17:41:40,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649391596] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:41:40,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:41:40,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 17:41:40,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021038395] [2022-07-13 17:41:40,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:41:40,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 17:41:40,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:41:40,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 17:41:40,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-13 17:41:40,004 INFO L87 Difference]: Start difference. First operand 19214 states and 32635 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 17:41:41,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:41:41,420 INFO L93 Difference]: Finished difference Result 36402 states and 62038 transitions. [2022-07-13 17:41:41,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 17:41:41,420 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 102 [2022-07-13 17:41:41,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:41:41,475 INFO L225 Difference]: With dead ends: 36402 [2022-07-13 17:41:41,475 INFO L226 Difference]: Without dead ends: 19303 [2022-07-13 17:41:41,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-07-13 17:41:41,506 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 720 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 1325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-13 17:41:41,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 1106 Invalid, 1325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-13 17:41:41,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19303 states. [2022-07-13 17:41:42,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19303 to 19214. [2022-07-13 17:41:42,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19214 states, 18267 states have (on average 1.6699512782613457) internal successors, (30505), 18271 states have internal predecessors, (30505), 931 states have call successors, (931), 13 states have call predecessors, (931), 15 states have return successors, (933), 929 states have call predecessors, (933), 930 states have call successors, (933) [2022-07-13 17:41:42,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19214 states to 19214 states and 32369 transitions. [2022-07-13 17:41:42,359 INFO L78 Accepts]: Start accepts. Automaton has 19214 states and 32369 transitions. Word has length 102 [2022-07-13 17:41:42,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:41:42,360 INFO L495 AbstractCegarLoop]: Abstraction has 19214 states and 32369 transitions. [2022-07-13 17:41:42,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 17:41:42,360 INFO L276 IsEmpty]: Start isEmpty. Operand 19214 states and 32369 transitions. [2022-07-13 17:41:42,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-13 17:41:42,386 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:41:42,386 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:41:42,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-13 17:41:42,387 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:41:42,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:41:42,387 INFO L85 PathProgramCache]: Analyzing trace with hash -665958510, now seen corresponding path program 1 times [2022-07-13 17:41:42,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:41:42,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169082715] [2022-07-13 17:41:42,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:42,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:41:42,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:42,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:41:42,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:42,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:41:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:42,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:41:42,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:42,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 17:41:42,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:42,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-13 17:41:42,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:42,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-13 17:41:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:42,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-13 17:41:42,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:42,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-13 17:41:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:42,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-13 17:41:42,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:42,466 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-13 17:41:42,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:41:42,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169082715] [2022-07-13 17:41:42,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169082715] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:41:42,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:41:42,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:41:42,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793659775] [2022-07-13 17:41:42,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:41:42,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:41:42,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:41:42,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:41:42,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:41:42,468 INFO L87 Difference]: Start difference. First operand 19214 states and 32369 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 17:41:44,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:41:44,175 INFO L93 Difference]: Finished difference Result 52947 states and 89471 transitions. [2022-07-13 17:41:44,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:41:44,176 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 103 [2022-07-13 17:41:44,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:41:44,287 INFO L225 Difference]: With dead ends: 52947 [2022-07-13 17:41:44,288 INFO L226 Difference]: Without dead ends: 35752 [2022-07-13 17:41:44,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-13 17:41:44,315 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 513 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 17:41:44,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 735 Invalid, 750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 17:41:44,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35752 states. [2022-07-13 17:41:45,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35752 to 35663. [2022-07-13 17:41:45,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35663 states, 33918 states have (on average 1.6542248953358099) internal successors, (56108), 33922 states have internal predecessors, (56108), 1729 states have call successors, (1729), 13 states have call predecessors, (1729), 15 states have return successors, (1731), 1727 states have call predecessors, (1731), 1728 states have call successors, (1731) [2022-07-13 17:41:45,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35663 states to 35663 states and 59568 transitions. [2022-07-13 17:41:45,572 INFO L78 Accepts]: Start accepts. Automaton has 35663 states and 59568 transitions. Word has length 103 [2022-07-13 17:41:45,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:41:45,572 INFO L495 AbstractCegarLoop]: Abstraction has 35663 states and 59568 transitions. [2022-07-13 17:41:45,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 17:41:45,573 INFO L276 IsEmpty]: Start isEmpty. Operand 35663 states and 59568 transitions. [2022-07-13 17:41:45,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-13 17:41:45,602 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:41:45,603 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:41:45,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-13 17:41:45,603 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:41:45,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:41:45,604 INFO L85 PathProgramCache]: Analyzing trace with hash -802326053, now seen corresponding path program 1 times [2022-07-13 17:41:45,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:41:45,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953720050] [2022-07-13 17:41:45,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:45,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:41:45,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:45,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:41:45,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:45,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:41:45,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:45,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:41:45,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:45,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 17:41:45,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:45,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-13 17:41:45,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:45,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 17:41:45,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:45,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-13 17:41:45,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:45,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-13 17:41:45,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:45,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-13 17:41:45,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:45,669 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-13 17:41:45,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:41:45,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953720050] [2022-07-13 17:41:45,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953720050] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:41:45,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:41:45,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:41:45,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054018887] [2022-07-13 17:41:45,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:41:45,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:41:45,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:41:45,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:41:45,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:41:45,671 INFO L87 Difference]: Start difference. First operand 35663 states and 59568 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 17:41:47,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:41:47,876 INFO L93 Difference]: Finished difference Result 67705 states and 113029 transitions. [2022-07-13 17:41:47,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:41:47,877 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 104 [2022-07-13 17:41:47,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:41:48,096 INFO L225 Difference]: With dead ends: 67705 [2022-07-13 17:41:48,097 INFO L226 Difference]: Without dead ends: 67595 [2022-07-13 17:41:48,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-13 17:41:48,138 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 511 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 17:41:48,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 756 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 17:41:48,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67595 states. [2022-07-13 17:41:50,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67595 to 67506. [2022-07-13 17:41:50,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67506 states, 64192 states have (on average 1.6362942422731805) internal successors, (105037), 64196 states have internal predecessors, (105037), 3298 states have call successors, (3298), 13 states have call predecessors, (3298), 15 states have return successors, (3300), 3296 states have call predecessors, (3300), 3297 states have call successors, (3300) [2022-07-13 17:41:50,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67506 states to 67506 states and 111635 transitions. [2022-07-13 17:41:50,745 INFO L78 Accepts]: Start accepts. Automaton has 67506 states and 111635 transitions. Word has length 104 [2022-07-13 17:41:50,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:41:50,745 INFO L495 AbstractCegarLoop]: Abstraction has 67506 states and 111635 transitions. [2022-07-13 17:41:50,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 17:41:50,745 INFO L276 IsEmpty]: Start isEmpty. Operand 67506 states and 111635 transitions. [2022-07-13 17:41:50,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-07-13 17:41:50,779 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:41:50,779 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:41:50,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-13 17:41:50,779 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:41:50,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:41:50,780 INFO L85 PathProgramCache]: Analyzing trace with hash 770153616, now seen corresponding path program 1 times [2022-07-13 17:41:50,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:41:50,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440156610] [2022-07-13 17:41:50,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:50,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:41:50,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:50,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:41:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:50,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:41:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:50,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:41:50,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:50,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-13 17:41:50,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:50,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 17:41:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:50,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-13 17:41:50,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:50,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-13 17:41:50,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:50,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-13 17:41:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:50,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-13 17:41:50,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:50,999 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-13 17:41:51,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:41:51,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440156610] [2022-07-13 17:41:51,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440156610] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:41:51,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748736265] [2022-07-13 17:41:51,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:51,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:41:51,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:41:51,008 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) [2022-07-13 17:41:51,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-13 17:41:51,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:51,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 950 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-13 17:41:51,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:41:51,471 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-13 17:41:51,471 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:41:51,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748736265] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:41:51,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:41:51,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [18] total 28 [2022-07-13 17:41:51,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183947248] [2022-07-13 17:41:51,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:41:51,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 17:41:51,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:41:51,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 17:41:51,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2022-07-13 17:41:51,474 INFO L87 Difference]: Start difference. First operand 67506 states and 111635 transitions. Second operand has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (12), 5 states have call predecessors, (12), 6 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) [2022-07-13 17:41:53,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:41:53,649 INFO L93 Difference]: Finished difference Result 67794 states and 112040 transitions. [2022-07-13 17:41:53,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-13 17:41:53,650 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (12), 5 states have call predecessors, (12), 6 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) Word has length 105 [2022-07-13 17:41:53,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:41:53,863 INFO L225 Difference]: With dead ends: 67794 [2022-07-13 17:41:53,864 INFO L226 Difference]: Without dead ends: 67690 [2022-07-13 17:41:53,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=195, Invalid=1527, Unknown=0, NotChecked=0, Total=1722 [2022-07-13 17:41:53,898 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 565 mSDsluCounter, 2613 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 2930 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 17:41:53,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 2930 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 17:41:53,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67690 states. [2022-07-13 17:41:56,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67690 to 67639. [2022-07-13 17:41:56,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67639 states, 64293 states have (on average 1.6358857107305615) internal successors, (105176), 64299 states have internal predecessors, (105176), 3317 states have call successors, (3317), 23 states have call predecessors, (3317), 28 states have return successors, (3334), 3316 states have call predecessors, (3334), 3315 states have call successors, (3334) [2022-07-13 17:41:56,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67639 states to 67639 states and 111827 transitions. [2022-07-13 17:41:56,429 INFO L78 Accepts]: Start accepts. Automaton has 67639 states and 111827 transitions. Word has length 105 [2022-07-13 17:41:56,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:41:56,430 INFO L495 AbstractCegarLoop]: Abstraction has 67639 states and 111827 transitions. [2022-07-13 17:41:56,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (12), 5 states have call predecessors, (12), 6 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) [2022-07-13 17:41:56,430 INFO L276 IsEmpty]: Start isEmpty. Operand 67639 states and 111827 transitions. [2022-07-13 17:41:56,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-13 17:41:56,459 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:41:56,459 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:41:56,476 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-13 17:41:56,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:41:56,660 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:41:56,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:41:56,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1826011413, now seen corresponding path program 1 times [2022-07-13 17:41:56,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:41:56,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053523312] [2022-07-13 17:41:56,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:41:56,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:41:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:56,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:41:56,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:56,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:41:56,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:56,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:41:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:56,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-13 17:41:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:56,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 17:41:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:56,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-13 17:41:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:56,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-13 17:41:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:56,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-13 17:41:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:56,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-13 17:41:56,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:41:56,748 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-13 17:41:56,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:41:56,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053523312] [2022-07-13 17:41:56,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053523312] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:41:56,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:41:56,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 17:41:56,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357344253] [2022-07-13 17:41:56,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:41:56,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 17:41:56,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:41:56,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 17:41:56,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-13 17:41:56,750 INFO L87 Difference]: Start difference. First operand 67639 states and 111827 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 17:42:01,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:42:01,563 INFO L93 Difference]: Finished difference Result 133341 states and 220752 transitions. [2022-07-13 17:42:01,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-13 17:42:01,564 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 106 [2022-07-13 17:42:01,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:42:02,129 INFO L225 Difference]: With dead ends: 133341 [2022-07-13 17:42:02,130 INFO L226 Difference]: Without dead ends: 133113 [2022-07-13 17:42:02,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=169, Invalid=383, Unknown=0, NotChecked=0, Total=552 [2022-07-13 17:42:02,176 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 1183 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 451 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 1792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 451 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-13 17:42:02,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 937 Invalid, 1792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [451 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-13 17:42:02,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133113 states. [2022-07-13 17:42:06,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133113 to 132749. [2022-07-13 17:42:06,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132749 states, 126188 states have (on average 1.6374219418645195) internal successors, (206623), 126201 states have internal predecessors, (206623), 6501 states have call successors, (6501), 44 states have call predecessors, (6501), 59 states have return successors, (6558), 6503 states have call predecessors, (6558), 6497 states have call successors, (6558) [2022-07-13 17:42:07,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132749 states to 132749 states and 219682 transitions. [2022-07-13 17:42:07,224 INFO L78 Accepts]: Start accepts. Automaton has 132749 states and 219682 transitions. Word has length 106 [2022-07-13 17:42:07,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:42:07,225 INFO L495 AbstractCegarLoop]: Abstraction has 132749 states and 219682 transitions. [2022-07-13 17:42:07,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 17:42:07,225 INFO L276 IsEmpty]: Start isEmpty. Operand 132749 states and 219682 transitions. [2022-07-13 17:42:07,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-13 17:42:07,279 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:42:07,279 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:42:07,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-13 17:42:07,280 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:42:07,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:42:07,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1150246972, now seen corresponding path program 1 times [2022-07-13 17:42:07,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:42:07,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168099919] [2022-07-13 17:42:07,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:42:07,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:42:07,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:42:07,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:42:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:42:07,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:42:07,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:42:07,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:42:07,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:42:07,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-13 17:42:07,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:42:07,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 17:42:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:42:07,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-13 17:42:07,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:42:07,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-13 17:42:07,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:42:07,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-13 17:42:07,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:42:07,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-13 17:42:07,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:42:07,433 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-13 17:42:07,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:42:07,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168099919] [2022-07-13 17:42:07,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168099919] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:42:07,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:42:07,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-07-13 17:42:07,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784620030] [2022-07-13 17:42:07,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:42:07,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-13 17:42:07,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:42:07,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-13 17:42:07,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-07-13 17:42:07,436 INFO L87 Difference]: Start difference. First operand 132749 states and 219682 transitions. Second operand has 15 states, 13 states have (on average 5.923076923076923) internal successors, (77), 10 states have internal predecessors, (77), 7 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2022-07-13 17:42:13,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:42:13,067 INFO L93 Difference]: Finished difference Result 134011 states and 221819 transitions. [2022-07-13 17:42:13,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-07-13 17:42:13,068 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 5.923076923076923) internal successors, (77), 10 states have internal predecessors, (77), 7 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) Word has length 106 [2022-07-13 17:42:13,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:42:13,438 INFO L225 Difference]: With dead ends: 134011 [2022-07-13 17:42:13,439 INFO L226 Difference]: Without dead ends: 133489 [2022-07-13 17:42:13,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=320, Invalid=1660, Unknown=0, NotChecked=0, Total=1980 [2022-07-13 17:42:13,479 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 809 mSDsluCounter, 1363 mSDsCounter, 0 mSdLazyCounter, 3417 mSolverCounterSat, 430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 1666 SdHoareTripleChecker+Invalid, 3847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 430 IncrementalHoareTripleChecker+Valid, 3417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-13 17:42:13,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 1666 Invalid, 3847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [430 Valid, 3417 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-13 17:42:13,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133489 states. [2022-07-13 17:42:18,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133489 to 132969. [2022-07-13 17:42:18,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132969 states, 126342 states have (on average 1.6369140903262573) internal successors, (206811), 126361 states have internal predecessors, (206811), 6557 states have call successors, (6557), 52 states have call predecessors, (6557), 69 states have return successors, (6628), 6555 states have call predecessors, (6628), 6545 states have call successors, (6628) [2022-07-13 17:42:18,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132969 states to 132969 states and 219996 transitions. [2022-07-13 17:42:18,650 INFO L78 Accepts]: Start accepts. Automaton has 132969 states and 219996 transitions. Word has length 106 [2022-07-13 17:42:18,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:42:18,650 INFO L495 AbstractCegarLoop]: Abstraction has 132969 states and 219996 transitions. [2022-07-13 17:42:18,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 5.923076923076923) internal successors, (77), 10 states have internal predecessors, (77), 7 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2022-07-13 17:42:18,650 INFO L276 IsEmpty]: Start isEmpty. Operand 132969 states and 219996 transitions. [2022-07-13 17:42:18,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-13 17:42:18,711 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:42:18,712 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:42:18,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-13 17:42:18,712 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:42:18,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:42:18,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1985180909, now seen corresponding path program 1 times [2022-07-13 17:42:18,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:42:18,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670274943] [2022-07-13 17:42:18,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:42:18,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:42:18,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:42:18,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:42:18,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:42:18,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:42:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:42:18,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:42:18,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:42:18,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-13 17:42:18,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:42:18,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 17:42:18,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:42:18,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-13 17:42:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:42:18,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-13 17:42:18,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:42:18,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-13 17:42:18,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:42:18,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-13 17:42:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:42:18,788 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-13 17:42:18,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:42:18,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670274943] [2022-07-13 17:42:18,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670274943] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:42:18,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:42:18,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 17:42:18,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46859093] [2022-07-13 17:42:18,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:42:18,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 17:42:18,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:42:18,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 17:42:18,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-13 17:42:18,790 INFO L87 Difference]: Start difference. First operand 132969 states and 219996 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9)