./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec11_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec11_product35.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 97d4c6be733483d74e70aacf7c001bc7f4ca03733e33a8c0b4370e9380a7e003 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 11:24:07,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 11:24:07,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 11:24:08,001 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 11:24:08,001 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 11:24:08,004 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 11:24:08,005 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 11:24:08,007 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 11:24:08,008 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 11:24:08,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 11:24:08,012 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 11:24:08,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 11:24:08,028 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 11:24:08,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 11:24:08,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 11:24:08,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 11:24:08,033 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 11:24:08,034 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 11:24:08,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 11:24:08,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 11:24:08,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 11:24:08,041 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 11:24:08,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 11:24:08,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 11:24:08,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 11:24:08,048 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 11:24:08,048 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 11:24:08,050 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 11:24:08,050 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 11:24:08,050 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 11:24:08,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 11:24:08,051 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 11:24:08,053 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 11:24:08,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 11:24:08,054 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 11:24:08,055 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 11:24:08,055 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 11:24:08,055 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 11:24:08,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 11:24:08,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 11:24:08,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 11:24:08,058 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-22 11:24:08,082 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 11:24:08,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 11:24:08,082 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 11:24:08,083 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 11:24:08,083 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 11:24:08,083 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 11:24:08,084 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 11:24:08,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 11:24:08,084 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 11:24:08,084 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 11:24:08,085 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 11:24:08,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 11:24:08,085 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 11:24:08,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 11:24:08,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 11:24:08,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 11:24:08,086 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 11:24:08,086 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 11:24:08,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 11:24:08,086 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 11:24:08,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 11:24:08,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 11:24:08,087 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 11:24:08,087 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 11:24:08,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 11:24:08,087 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 11:24:08,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 11:24:08,088 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 11:24:08,088 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 11:24:08,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 11:24:08,089 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 11:24:08,089 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 11:24:08,089 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 11:24:08,089 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 11:24:08,089 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97d4c6be733483d74e70aacf7c001bc7f4ca03733e33a8c0b4370e9380a7e003 [2021-12-22 11:24:08,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 11:24:08,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 11:24:08,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 11:24:08,330 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 11:24:08,330 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 11:24:08,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec11_product35.cil.c [2021-12-22 11:24:08,379 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58315ff6e/6ed4af9a93254c02b22608c8aa80aaac/FLAG5d206f548 [2021-12-22 11:24:08,833 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 11:24:08,833 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec11_product35.cil.c [2021-12-22 11:24:08,856 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58315ff6e/6ed4af9a93254c02b22608c8aa80aaac/FLAG5d206f548 [2021-12-22 11:24:09,124 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58315ff6e/6ed4af9a93254c02b22608c8aa80aaac [2021-12-22 11:24:09,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 11:24:09,128 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 11:24:09,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 11:24:09,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 11:24:09,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 11:24:09,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:24:09" (1/1) ... [2021-12-22 11:24:09,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@555b7132 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:24:09, skipping insertion in model container [2021-12-22 11:24:09,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:24:09" (1/1) ... [2021-12-22 11:24:09,140 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 11:24:09,206 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 11:24:09,593 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec11_product35.cil.c[61136,61149] [2021-12-22 11:24:09,613 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 11:24:09,622 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 11:24:09,699 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec11_product35.cil.c[61136,61149] [2021-12-22 11:24:09,720 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 11:24:09,761 INFO L208 MainTranslator]: Completed translation [2021-12-22 11:24:09,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:24:09 WrapperNode [2021-12-22 11:24:09,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 11:24:09,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 11:24:09,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 11:24:09,763 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 11:24:09,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:24:09" (1/1) ... [2021-12-22 11:24:09,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:24:09" (1/1) ... [2021-12-22 11:24:09,838 INFO L137 Inliner]: procedures = 137, calls = 246, calls flagged for inlining = 66, calls inlined = 63, statements flattened = 1142 [2021-12-22 11:24:09,838 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 11:24:09,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 11:24:09,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 11:24:09,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 11:24:09,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:24:09" (1/1) ... [2021-12-22 11:24:09,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:24:09" (1/1) ... [2021-12-22 11:24:09,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:24:09" (1/1) ... [2021-12-22 11:24:09,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:24:09" (1/1) ... [2021-12-22 11:24:09,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:24:09" (1/1) ... [2021-12-22 11:24:09,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:24:09" (1/1) ... [2021-12-22 11:24:09,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:24:09" (1/1) ... [2021-12-22 11:24:09,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 11:24:09,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 11:24:09,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 11:24:09,934 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 11:24:09,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:24:09" (1/1) ... [2021-12-22 11:24:09,940 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 11:24:09,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:24:09,957 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 11:24:09,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 11:24:09,983 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-12-22 11:24:09,984 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-12-22 11:24:09,984 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-22 11:24:09,984 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-22 11:24:09,984 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-12-22 11:24:09,984 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-12-22 11:24:09,984 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-22 11:24:09,984 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-22 11:24:09,985 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-12-22 11:24:09,985 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-12-22 11:24:09,985 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-22 11:24:09,985 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-22 11:24:09,985 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2021-12-22 11:24:09,985 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2021-12-22 11:24:09,985 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-22 11:24:09,985 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-22 11:24:09,986 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-12-22 11:24:09,986 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-12-22 11:24:09,986 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-22 11:24:09,986 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-22 11:24:09,986 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-12-22 11:24:09,986 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-12-22 11:24:09,986 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-12-22 11:24:09,986 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-12-22 11:24:09,987 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-22 11:24:09,987 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-22 11:24:09,987 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-22 11:24:09,987 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-12-22 11:24:09,987 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-12-22 11:24:09,987 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2021-12-22 11:24:09,987 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2021-12-22 11:24:09,987 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-22 11:24:09,988 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-22 11:24:09,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 11:24:09,988 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-12-22 11:24:09,988 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-12-22 11:24:09,988 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2021-12-22 11:24:09,988 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2021-12-22 11:24:09,988 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-22 11:24:09,988 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-22 11:24:09,989 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-22 11:24:09,989 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-22 11:24:09,989 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-22 11:24:09,989 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-22 11:24:09,989 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-22 11:24:09,989 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-22 11:24:09,989 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2021-12-22 11:24:09,989 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2021-12-22 11:24:09,990 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-22 11:24:09,990 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-22 11:24:09,990 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-12-22 11:24:09,990 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-12-22 11:24:09,990 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-22 11:24:09,990 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-22 11:24:09,990 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-22 11:24:09,990 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-22 11:24:09,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 11:24:09,991 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-22 11:24:09,991 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-22 11:24:09,991 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-22 11:24:09,991 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-22 11:24:09,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 11:24:09,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 11:24:10,205 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 11:24:10,207 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 11:24:10,836 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 11:24:10,844 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 11:24:10,845 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-22 11:24:10,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:24:10 BoogieIcfgContainer [2021-12-22 11:24:10,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 11:24:10,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 11:24:10,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 11:24:10,850 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 11:24:10,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:24:09" (1/3) ... [2021-12-22 11:24:10,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c04e0fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:24:10, skipping insertion in model container [2021-12-22 11:24:10,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:24:09" (2/3) ... [2021-12-22 11:24:10,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c04e0fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:24:10, skipping insertion in model container [2021-12-22 11:24:10,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:24:10" (3/3) ... [2021-12-22 11:24:10,851 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec11_product35.cil.c [2021-12-22 11:24:10,855 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 11:24:10,855 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 11:24:10,894 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 11:24:10,898 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 11:24:10,899 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 11:24:10,919 INFO L276 IsEmpty]: Start isEmpty. Operand has 463 states, 358 states have (on average 1.5363128491620113) internal successors, (550), 363 states have internal predecessors, (550), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2021-12-22 11:24:10,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-12-22 11:24:10,936 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:24:10,937 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:24:10,937 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:24:10,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:24:10,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1750999411, now seen corresponding path program 1 times [2021-12-22 11:24:10,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:24:10,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689729672] [2021-12-22 11:24:10,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:24:10,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:24:11,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:11,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:24:11,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:11,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:24:11,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:11,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:24:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:11,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-22 11:24:11,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:11,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-22 11:24:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:11,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 11:24:11,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:11,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 11:24:11,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:11,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 11:24:11,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:11,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 11:24:11,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:11,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 11:24:11,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:11,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-22 11:24:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:11,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-22 11:24:11,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:11,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-22 11:24:11,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:11,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-22 11:24:11,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:11,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-22 11:24:11,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:11,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 11:24:11,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:11,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-22 11:24:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:11,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-22 11:24:11,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:11,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-22 11:24:11,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:11,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:11,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:11,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-22 11:24:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:11,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:11,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:11,275 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-12-22 11:24:11,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:24:11,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689729672] [2021-12-22 11:24:11,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689729672] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:24:11,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583686252] [2021-12-22 11:24:11,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:24:11,277 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:24:11,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:24:11,278 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 11:24:11,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-22 11:24:11,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:11,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 1400 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-22 11:24:11,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:24:11,753 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-12-22 11:24:11,753 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 11:24:11,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583686252] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:24:11,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 11:24:11,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-12-22 11:24:11,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212178625] [2021-12-22 11:24:11,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:24:11,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-22 11:24:11,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:24:11,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-22 11:24:11,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-22 11:24:11,779 INFO L87 Difference]: Start difference. First operand has 463 states, 358 states have (on average 1.5363128491620113) internal successors, (550), 363 states have internal predecessors, (550), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) Second operand has 2 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-22 11:24:11,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:24:11,820 INFO L93 Difference]: Finished difference Result 728 states and 1078 transitions. [2021-12-22 11:24:11,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-22 11:24:11,822 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 167 [2021-12-22 11:24:11,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:24:11,833 INFO L225 Difference]: With dead ends: 728 [2021-12-22 11:24:11,833 INFO L226 Difference]: Without dead ends: 456 [2021-12-22 11:24:11,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-22 11:24:11,841 INFO L933 BasicCegarLoop]: 694 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 11:24:11,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 11:24:11,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2021-12-22 11:24:11,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2021-12-22 11:24:11,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 352 states have (on average 1.53125) internal successors, (539), 356 states have internal predecessors, (539), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2021-12-22 11:24:11,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 686 transitions. [2021-12-22 11:24:11,897 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 686 transitions. Word has length 167 [2021-12-22 11:24:11,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:24:11,899 INFO L470 AbstractCegarLoop]: Abstraction has 456 states and 686 transitions. [2021-12-22 11:24:11,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-22 11:24:11,899 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 686 transitions. [2021-12-22 11:24:11,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-22 11:24:11,904 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:24:11,905 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:24:11,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-22 11:24:12,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-12-22 11:24:12,127 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:24:12,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:24:12,127 INFO L85 PathProgramCache]: Analyzing trace with hash 305354623, now seen corresponding path program 1 times [2021-12-22 11:24:12,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:24:12,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301521280] [2021-12-22 11:24:12,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:24:12,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:24:12,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:12,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:24:12,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:12,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:24:12,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:12,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:24:12,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:12,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-22 11:24:12,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:12,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-22 11:24:12,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:12,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 11:24:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:12,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-22 11:24:12,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:12,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 11:24:12,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:12,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 11:24:12,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:12,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-22 11:24:12,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:12,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-22 11:24:12,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:12,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-22 11:24:12,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:12,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-22 11:24:12,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:12,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 11:24:12,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:12,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-22 11:24:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:12,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-22 11:24:12,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:12,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-22 11:24:12,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:12,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-22 11:24:12,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:12,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-22 11:24:12,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:12,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:12,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:12,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-22 11:24:12,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:12,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:12,274 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-12-22 11:24:12,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:24:12,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301521280] [2021-12-22 11:24:12,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301521280] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:24:12,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744361132] [2021-12-22 11:24:12,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:24:12,275 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:24:12,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:24:12,276 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 11:24:12,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-22 11:24:12,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:12,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 1401 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 11:24:12,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:24:12,752 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-12-22 11:24:12,752 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 11:24:12,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744361132] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:24:12,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 11:24:12,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-22 11:24:12,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067909699] [2021-12-22 11:24:12,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:24:12,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 11:24:12,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:24:12,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 11:24:12,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-22 11:24:12,756 INFO L87 Difference]: Start difference. First operand 456 states and 686 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-22 11:24:12,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:24:12,806 INFO L93 Difference]: Finished difference Result 718 states and 1056 transitions. [2021-12-22 11:24:12,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 11:24:12,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 168 [2021-12-22 11:24:12,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:24:12,809 INFO L225 Difference]: With dead ends: 718 [2021-12-22 11:24:12,810 INFO L226 Difference]: Without dead ends: 459 [2021-12-22 11:24:12,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-22 11:24:12,812 INFO L933 BasicCegarLoop]: 684 mSDtfsCounter, 1 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1366 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 11:24:12,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1366 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 11:24:12,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2021-12-22 11:24:12,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 458. [2021-12-22 11:24:12,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 354 states have (on average 1.5282485875706215) internal successors, (541), 358 states have internal predecessors, (541), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2021-12-22 11:24:12,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 688 transitions. [2021-12-22 11:24:12,833 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 688 transitions. Word has length 168 [2021-12-22 11:24:12,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:24:12,834 INFO L470 AbstractCegarLoop]: Abstraction has 458 states and 688 transitions. [2021-12-22 11:24:12,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-22 11:24:12,834 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 688 transitions. [2021-12-22 11:24:12,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-22 11:24:12,837 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:24:12,837 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:24:12,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-22 11:24:13,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-12-22 11:24:13,047 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:24:13,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:24:13,048 INFO L85 PathProgramCache]: Analyzing trace with hash 2123478460, now seen corresponding path program 1 times [2021-12-22 11:24:13,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:24:13,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416278522] [2021-12-22 11:24:13,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:24:13,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:24:13,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:13,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:24:13,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:13,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:24:13,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:13,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:24:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:13,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-22 11:24:13,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:13,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-22 11:24:13,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:13,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 11:24:13,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:13,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-22 11:24:13,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:13,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 11:24:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:13,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-22 11:24:13,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:13,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-22 11:24:13,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:13,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-22 11:24:13,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:13,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-22 11:24:13,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:13,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-22 11:24:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:13,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-22 11:24:13,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:13,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 11:24:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:13,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 11:24:13,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:13,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 11:24:13,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:13,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-22 11:24:13,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:13,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-22 11:24:13,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:13,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:13,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-22 11:24:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:13,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:13,268 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-22 11:24:13,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:24:13,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416278522] [2021-12-22 11:24:13,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416278522] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:24:13,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051538474] [2021-12-22 11:24:13,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:24:13,270 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:24:13,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:24:13,292 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 11:24:13,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-22 11:24:13,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:13,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 1428 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-22 11:24:13,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:24:13,727 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-12-22 11:24:13,728 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 11:24:13,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051538474] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:24:13,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 11:24:13,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-22 11:24:13,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426484951] [2021-12-22 11:24:13,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:24:13,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 11:24:13,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:24:13,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 11:24:13,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-22 11:24:13,730 INFO L87 Difference]: Start difference. First operand 458 states and 688 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-22 11:24:13,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:24:13,750 INFO L93 Difference]: Finished difference Result 969 states and 1476 transitions. [2021-12-22 11:24:13,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 11:24:13,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 177 [2021-12-22 11:24:13,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:24:13,754 INFO L225 Difference]: With dead ends: 969 [2021-12-22 11:24:13,754 INFO L226 Difference]: Without dead ends: 538 [2021-12-22 11:24:13,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-22 11:24:13,756 INFO L933 BasicCegarLoop]: 705 mSDtfsCounter, 142 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 11:24:13,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 1343 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 11:24:13,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-12-22 11:24:13,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 530. [2021-12-22 11:24:13,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 412 states have (on average 1.5485436893203883) internal successors, (638), 416 states have internal predecessors, (638), 88 states have call successors, (88), 29 states have call predecessors, (88), 29 states have return successors, (87), 86 states have call predecessors, (87), 87 states have call successors, (87) [2021-12-22 11:24:13,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 813 transitions. [2021-12-22 11:24:13,776 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 813 transitions. Word has length 177 [2021-12-22 11:24:13,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:24:13,776 INFO L470 AbstractCegarLoop]: Abstraction has 530 states and 813 transitions. [2021-12-22 11:24:13,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-22 11:24:13,777 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 813 transitions. [2021-12-22 11:24:13,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-12-22 11:24:13,779 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:24:13,779 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:24:13,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-22 11:24:13,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:24:13,995 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:24:13,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:24:13,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1741878275, now seen corresponding path program 1 times [2021-12-22 11:24:13,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:24:13,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503560303] [2021-12-22 11:24:13,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:24:13,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:24:14,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:14,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:24:14,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:14,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:24:14,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:14,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:24:14,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:14,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-22 11:24:14,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:14,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-22 11:24:14,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:14,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 11:24:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:14,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 11:24:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:14,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-22 11:24:14,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:14,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-22 11:24:14,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:14,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 11:24:14,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:14,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-22 11:24:14,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:14,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-22 11:24:14,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:14,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-22 11:24:14,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:14,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-22 11:24:14,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:14,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-22 11:24:14,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:14,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-22 11:24:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:14,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:14,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:14,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-22 11:24:14,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:14,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:14,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:14,115 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-22 11:24:14,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:24:14,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503560303] [2021-12-22 11:24:14,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503560303] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:24:14,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656433365] [2021-12-22 11:24:14,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:24:14,119 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:24:14,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:24:14,136 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 11:24:14,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-22 11:24:14,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:14,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 1354 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-22 11:24:14,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:24:14,681 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-12-22 11:24:14,681 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 11:24:14,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656433365] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:24:14,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 11:24:14,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-22 11:24:14,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594674503] [2021-12-22 11:24:14,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:24:14,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 11:24:14,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:24:14,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 11:24:14,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-22 11:24:14,683 INFO L87 Difference]: Start difference. First operand 530 states and 813 transitions. Second operand has 5 states, 4 states have (on average 24.5) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-22 11:24:14,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:24:14,750 INFO L93 Difference]: Finished difference Result 1051 states and 1616 transitions. [2021-12-22 11:24:14,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 11:24:14,750 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.5) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 159 [2021-12-22 11:24:14,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:24:14,753 INFO L225 Difference]: With dead ends: 1051 [2021-12-22 11:24:14,753 INFO L226 Difference]: Without dead ends: 532 [2021-12-22 11:24:14,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:24:14,755 INFO L933 BasicCegarLoop]: 677 mSDtfsCounter, 160 mSDsluCounter, 1849 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 2526 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 11:24:14,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 2526 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 11:24:14,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2021-12-22 11:24:14,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2021-12-22 11:24:14,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 413 states have (on average 1.5472154963680387) internal successors, (639), 418 states have internal predecessors, (639), 88 states have call successors, (88), 29 states have call predecessors, (88), 30 states have return successors, (89), 86 states have call predecessors, (89), 87 states have call successors, (89) [2021-12-22 11:24:14,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 816 transitions. [2021-12-22 11:24:14,799 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 816 transitions. Word has length 159 [2021-12-22 11:24:14,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:24:14,800 INFO L470 AbstractCegarLoop]: Abstraction has 532 states and 816 transitions. [2021-12-22 11:24:14,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.5) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-22 11:24:14,800 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 816 transitions. [2021-12-22 11:24:14,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-12-22 11:24:14,803 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:24:14,803 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:24:14,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-22 11:24:15,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:24:15,019 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:24:15,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:24:15,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1528256094, now seen corresponding path program 1 times [2021-12-22 11:24:15,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:24:15,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554080310] [2021-12-22 11:24:15,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:24:15,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:24:15,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:15,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:24:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:15,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:24:15,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:15,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:24:15,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:15,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:24:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:15,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-22 11:24:15,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:15,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:24:15,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:15,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-22 11:24:15,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:15,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:24:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:15,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 11:24:15,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:15,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-22 11:24:15,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:15,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-22 11:24:15,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:15,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-22 11:24:15,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:15,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-22 11:24:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:15,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-22 11:24:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:15,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-22 11:24:15,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:15,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-22 11:24:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:15,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-22 11:24:15,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:15,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-22 11:24:15,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:15,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 11:24:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:15,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:15,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:15,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-22 11:24:15,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:15,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:15,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:15,179 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-22 11:24:15,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:24:15,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554080310] [2021-12-22 11:24:15,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554080310] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:24:15,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043647086] [2021-12-22 11:24:15,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:24:15,180 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:24:15,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:24:15,181 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 11:24:15,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-22 11:24:15,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:15,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 1436 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-22 11:24:15,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:24:15,804 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-12-22 11:24:15,804 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 11:24:15,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043647086] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:24:15,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 11:24:15,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-22 11:24:15,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383965768] [2021-12-22 11:24:15,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:24:15,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 11:24:15,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:24:15,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 11:24:15,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-12-22 11:24:15,807 INFO L87 Difference]: Start difference. First operand 532 states and 816 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-22 11:24:15,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:24:15,863 INFO L93 Difference]: Finished difference Result 1053 states and 1621 transitions. [2021-12-22 11:24:15,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 11:24:15,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 179 [2021-12-22 11:24:15,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:24:15,867 INFO L225 Difference]: With dead ends: 1053 [2021-12-22 11:24:15,867 INFO L226 Difference]: Without dead ends: 534 [2021-12-22 11:24:15,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-12-22 11:24:15,869 INFO L933 BasicCegarLoop]: 675 mSDtfsCounter, 159 mSDsluCounter, 1840 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 2515 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 11:24:15,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 2515 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 11:24:15,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2021-12-22 11:24:15,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2021-12-22 11:24:15,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 414 states have (on average 1.5458937198067633) internal successors, (640), 420 states have internal predecessors, (640), 88 states have call successors, (88), 29 states have call predecessors, (88), 31 states have return successors, (94), 86 states have call predecessors, (94), 87 states have call successors, (94) [2021-12-22 11:24:15,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 822 transitions. [2021-12-22 11:24:15,897 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 822 transitions. Word has length 179 [2021-12-22 11:24:15,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:24:15,898 INFO L470 AbstractCegarLoop]: Abstraction has 534 states and 822 transitions. [2021-12-22 11:24:15,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-22 11:24:15,898 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 822 transitions. [2021-12-22 11:24:15,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-12-22 11:24:15,901 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:24:15,901 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:24:15,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-22 11:24:16,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:24:16,119 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:24:16,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:24:16,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1369621267, now seen corresponding path program 1 times [2021-12-22 11:24:16,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:24:16,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056833116] [2021-12-22 11:24:16,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:24:16,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:24:16,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:16,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:24:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:16,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:24:16,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:16,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:24:16,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:16,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:24:16,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:16,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:24:16,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:16,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 11:24:16,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:16,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-22 11:24:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:16,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-22 11:24:16,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:16,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 11:24:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:16,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 11:24:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:16,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-22 11:24:16,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:16,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-22 11:24:16,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:16,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-22 11:24:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:16,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 11:24:16,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:16,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-22 11:24:16,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:16,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-22 11:24:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:16,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-22 11:24:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:16,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-22 11:24:16,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:16,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-22 11:24:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:16,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:16,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-22 11:24:16,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:16,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:16,230 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-22 11:24:16,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:24:16,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056833116] [2021-12-22 11:24:16,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056833116] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:24:16,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:24:16,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-22 11:24:16,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000115523] [2021-12-22 11:24:16,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:24:16,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 11:24:16,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:24:16,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 11:24:16,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-22 11:24:16,232 INFO L87 Difference]: Start difference. First operand 534 states and 822 transitions. Second operand has 9 states, 8 states have (on average 12.875) internal successors, (103), 5 states have internal predecessors, (103), 3 states have call successors, (24), 6 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-22 11:24:18,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:24:18,098 INFO L93 Difference]: Finished difference Result 1275 states and 1989 transitions. [2021-12-22 11:24:18,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-22 11:24:18,099 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.875) internal successors, (103), 5 states have internal predecessors, (103), 3 states have call successors, (24), 6 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 180 [2021-12-22 11:24:18,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:24:18,103 INFO L225 Difference]: With dead ends: 1275 [2021-12-22 11:24:18,103 INFO L226 Difference]: Without dead ends: 764 [2021-12-22 11:24:18,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-22 11:24:18,105 INFO L933 BasicCegarLoop]: 799 mSDtfsCounter, 1801 mSDsluCounter, 1383 mSDsCounter, 0 mSdLazyCounter, 2536 mSolverCounterSat, 762 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1822 SdHoareTripleChecker+Valid, 2182 SdHoareTripleChecker+Invalid, 3298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 762 IncrementalHoareTripleChecker+Valid, 2536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-22 11:24:18,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1822 Valid, 2182 Invalid, 3298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [762 Valid, 2536 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-22 11:24:18,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2021-12-22 11:24:18,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 534. [2021-12-22 11:24:18,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 414 states have (on average 1.5458937198067633) internal successors, (640), 420 states have internal predecessors, (640), 88 states have call successors, (88), 29 states have call predecessors, (88), 31 states have return successors, (93), 86 states have call predecessors, (93), 87 states have call successors, (93) [2021-12-22 11:24:18,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 821 transitions. [2021-12-22 11:24:18,132 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 821 transitions. Word has length 180 [2021-12-22 11:24:18,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:24:18,132 INFO L470 AbstractCegarLoop]: Abstraction has 534 states and 821 transitions. [2021-12-22 11:24:18,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.875) internal successors, (103), 5 states have internal predecessors, (103), 3 states have call successors, (24), 6 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-22 11:24:18,133 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 821 transitions. [2021-12-22 11:24:18,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-12-22 11:24:18,135 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:24:18,135 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:24:18,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-22 11:24:18,135 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:24:18,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:24:18,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1722056232, now seen corresponding path program 1 times [2021-12-22 11:24:18,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:24:18,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795412869] [2021-12-22 11:24:18,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:24:18,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:24:18,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:18,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:24:18,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:18,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:24:18,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:18,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:24:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:18,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:24:18,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:18,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:24:18,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:18,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-22 11:24:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:18,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 11:24:18,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:18,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 11:24:18,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:18,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 11:24:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:18,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-22 11:24:18,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:18,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 11:24:18,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:18,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 11:24:18,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:18,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-22 11:24:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:18,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-22 11:24:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:18,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-22 11:24:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:18,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-22 11:24:18,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:18,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:18,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-22 11:24:18,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:18,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:18,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:18,234 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-22 11:24:18,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:24:18,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795412869] [2021-12-22 11:24:18,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795412869] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:24:18,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:24:18,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-22 11:24:18,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501497431] [2021-12-22 11:24:18,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:24:18,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 11:24:18,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:24:18,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 11:24:18,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-22 11:24:18,237 INFO L87 Difference]: Start difference. First operand 534 states and 821 transitions. Second operand has 9 states, 8 states have (on average 12.125) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-22 11:24:19,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:24:19,975 INFO L93 Difference]: Finished difference Result 1277 states and 1992 transitions. [2021-12-22 11:24:19,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-22 11:24:19,975 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 162 [2021-12-22 11:24:19,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:24:19,981 INFO L225 Difference]: With dead ends: 1277 [2021-12-22 11:24:19,981 INFO L226 Difference]: Without dead ends: 766 [2021-12-22 11:24:19,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-22 11:24:19,985 INFO L933 BasicCegarLoop]: 797 mSDtfsCounter, 1822 mSDsluCounter, 1402 mSDsCounter, 0 mSdLazyCounter, 2530 mSolverCounterSat, 752 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1842 SdHoareTripleChecker+Valid, 2199 SdHoareTripleChecker+Invalid, 3282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 752 IncrementalHoareTripleChecker+Valid, 2530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-22 11:24:19,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1842 Valid, 2199 Invalid, 3282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [752 Valid, 2530 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-22 11:24:19,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2021-12-22 11:24:20,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 536. [2021-12-22 11:24:20,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 415 states have (on average 1.544578313253012) internal successors, (641), 422 states have internal predecessors, (641), 88 states have call successors, (88), 29 states have call predecessors, (88), 32 states have return successors, (95), 86 states have call predecessors, (95), 87 states have call successors, (95) [2021-12-22 11:24:20,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 824 transitions. [2021-12-22 11:24:20,014 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 824 transitions. Word has length 162 [2021-12-22 11:24:20,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:24:20,014 INFO L470 AbstractCegarLoop]: Abstraction has 536 states and 824 transitions. [2021-12-22 11:24:20,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-22 11:24:20,015 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 824 transitions. [2021-12-22 11:24:20,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-12-22 11:24:20,016 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:24:20,017 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:24:20,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-22 11:24:20,018 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:24:20,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:24:20,019 INFO L85 PathProgramCache]: Analyzing trace with hash -604041599, now seen corresponding path program 1 times [2021-12-22 11:24:20,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:24:20,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902922527] [2021-12-22 11:24:20,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:24:20,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:24:20,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:20,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:24:20,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:20,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:24:20,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:20,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:24:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:20,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:24:20,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:20,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:24:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:20,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 11:24:20,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:20,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 11:24:20,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:20,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 11:24:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:20,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-22 11:24:20,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:20,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-22 11:24:20,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:20,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-22 11:24:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:20,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 11:24:20,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:20,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 11:24:20,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:20,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-22 11:24:20,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:20,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-22 11:24:20,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:20,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 11:24:20,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:20,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:20,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-22 11:24:20,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:20,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:20,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:20,158 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-12-22 11:24:20,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:24:20,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902922527] [2021-12-22 11:24:20,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902922527] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:24:20,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:24:20,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-22 11:24:20,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038546305] [2021-12-22 11:24:20,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:24:20,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-22 11:24:20,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:24:20,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-22 11:24:20,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-22 11:24:20,160 INFO L87 Difference]: Start difference. First operand 536 states and 824 transitions. Second operand has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2021-12-22 11:24:22,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:24:22,449 INFO L93 Difference]: Finished difference Result 1275 states and 1987 transitions. [2021-12-22 11:24:22,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-22 11:24:22,450 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 163 [2021-12-22 11:24:22,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:24:22,454 INFO L225 Difference]: With dead ends: 1275 [2021-12-22 11:24:22,454 INFO L226 Difference]: Without dead ends: 766 [2021-12-22 11:24:22,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-22 11:24:22,456 INFO L933 BasicCegarLoop]: 748 mSDtfsCounter, 2049 mSDsluCounter, 2068 mSDsCounter, 0 mSdLazyCounter, 4303 mSolverCounterSat, 848 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2049 SdHoareTripleChecker+Valid, 2816 SdHoareTripleChecker+Invalid, 5151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 848 IncrementalHoareTripleChecker+Valid, 4303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-22 11:24:22,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2049 Valid, 2816 Invalid, 5151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [848 Valid, 4303 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-22 11:24:22,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2021-12-22 11:24:22,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 536. [2021-12-22 11:24:22,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 415 states have (on average 1.544578313253012) internal successors, (641), 422 states have internal predecessors, (641), 88 states have call successors, (88), 29 states have call predecessors, (88), 32 states have return successors, (94), 86 states have call predecessors, (94), 87 states have call successors, (94) [2021-12-22 11:24:22,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 823 transitions. [2021-12-22 11:24:22,481 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 823 transitions. Word has length 163 [2021-12-22 11:24:22,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:24:22,482 INFO L470 AbstractCegarLoop]: Abstraction has 536 states and 823 transitions. [2021-12-22 11:24:22,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2021-12-22 11:24:22,482 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 823 transitions. [2021-12-22 11:24:22,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-12-22 11:24:22,494 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:24:22,494 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:24:22,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-22 11:24:22,494 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:24:22,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:24:22,495 INFO L85 PathProgramCache]: Analyzing trace with hash -2106985160, now seen corresponding path program 2 times [2021-12-22 11:24:22,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:24:22,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687293219] [2021-12-22 11:24:22,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:24:22,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:24:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:22,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:24:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:22,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:24:22,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:22,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:24:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:22,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:24:22,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:22,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:24:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:22,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 11:24:22,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:22,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-22 11:24:22,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:22,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-22 11:24:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:22,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-22 11:24:22,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:22,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 11:24:22,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:22,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 11:24:22,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:22,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-22 11:24:22,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:22,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-22 11:24:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:22,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-22 11:24:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:22,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-22 11:24:22,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:22,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-22 11:24:22,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:22,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:22,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:22,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-22 11:24:22,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:22,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:22,624 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-12-22 11:24:22,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:24:22,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687293219] [2021-12-22 11:24:22,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687293219] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:24:22,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:24:22,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-22 11:24:22,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745167123] [2021-12-22 11:24:22,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:24:22,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-22 11:24:22,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:24:22,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-22 11:24:22,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-22 11:24:22,626 INFO L87 Difference]: Start difference. First operand 536 states and 823 transitions. Second operand has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2021-12-22 11:24:25,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:24:25,017 INFO L93 Difference]: Finished difference Result 1277 states and 1993 transitions. [2021-12-22 11:24:25,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-22 11:24:25,018 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 164 [2021-12-22 11:24:25,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:24:25,021 INFO L225 Difference]: With dead ends: 1277 [2021-12-22 11:24:25,022 INFO L226 Difference]: Without dead ends: 768 [2021-12-22 11:24:25,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-22 11:24:25,024 INFO L933 BasicCegarLoop]: 781 mSDtfsCounter, 1912 mSDsluCounter, 2080 mSDsCounter, 0 mSdLazyCounter, 4604 mSolverCounterSat, 787 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1912 SdHoareTripleChecker+Valid, 2861 SdHoareTripleChecker+Invalid, 5391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 787 IncrementalHoareTripleChecker+Valid, 4604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-22 11:24:25,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1912 Valid, 2861 Invalid, 5391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [787 Valid, 4604 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-22 11:24:25,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2021-12-22 11:24:25,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 538. [2021-12-22 11:24:25,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 416 states have (on average 1.5432692307692308) internal successors, (642), 424 states have internal predecessors, (642), 88 states have call successors, (88), 29 states have call predecessors, (88), 33 states have return successors, (99), 86 states have call predecessors, (99), 87 states have call successors, (99) [2021-12-22 11:24:25,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 829 transitions. [2021-12-22 11:24:25,052 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 829 transitions. Word has length 164 [2021-12-22 11:24:25,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:24:25,053 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 829 transitions. [2021-12-22 11:24:25,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2021-12-22 11:24:25,053 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 829 transitions. [2021-12-22 11:24:25,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-12-22 11:24:25,055 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:24:25,055 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:24:25,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-22 11:24:25,056 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:24:25,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:24:25,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1914006118, now seen corresponding path program 1 times [2021-12-22 11:24:25,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:24:25,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555669504] [2021-12-22 11:24:25,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:24:25,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:24:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:25,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:24:25,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:25,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:24:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:25,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:24:25,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:25,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:24:25,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:25,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:24:25,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:25,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 11:24:25,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:25,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:24:25,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:25,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 11:24:25,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:25,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-22 11:24:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:25,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-22 11:24:25,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:25,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-22 11:24:25,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:25,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-22 11:24:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:25,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-22 11:24:25,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:25,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-22 11:24:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:25,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 11:24:25,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:25,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-22 11:24:25,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:25,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:25,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:25,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 11:24:25,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:25,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:25,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:25,174 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-12-22 11:24:25,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:24:25,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555669504] [2021-12-22 11:24:25,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555669504] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:24:25,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733189190] [2021-12-22 11:24:25,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:24:25,175 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:24:25,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:24:25,193 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 11:24:25,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-22 11:24:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:25,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 1360 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-22 11:24:25,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:24:25,638 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-22 11:24:25,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 11:24:25,893 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-22 11:24:25,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733189190] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 11:24:25,894 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 11:24:25,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2021-12-22 11:24:25,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477133563] [2021-12-22 11:24:25,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 11:24:25,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-22 11:24:25,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:24:25,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-22 11:24:25,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-12-22 11:24:25,897 INFO L87 Difference]: Start difference. First operand 538 states and 829 transitions. Second operand has 15 states, 14 states have (on average 11.642857142857142) internal successors, (163), 11 states have internal predecessors, (163), 4 states have call successors, (42), 6 states have call predecessors, (42), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) [2021-12-22 11:24:29,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:24:29,690 INFO L93 Difference]: Finished difference Result 2186 states and 3631 transitions. [2021-12-22 11:24:29,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-22 11:24:29,691 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.642857142857142) internal successors, (163), 11 states have internal predecessors, (163), 4 states have call successors, (42), 6 states have call predecessors, (42), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) Word has length 165 [2021-12-22 11:24:29,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:24:29,698 INFO L225 Difference]: With dead ends: 2186 [2021-12-22 11:24:29,698 INFO L226 Difference]: Without dead ends: 1679 [2021-12-22 11:24:29,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2021-12-22 11:24:29,713 INFO L933 BasicCegarLoop]: 921 mSDtfsCounter, 4638 mSDsluCounter, 3773 mSDsCounter, 0 mSdLazyCounter, 6540 mSolverCounterSat, 1884 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4640 SdHoareTripleChecker+Valid, 4694 SdHoareTripleChecker+Invalid, 8424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1884 IncrementalHoareTripleChecker+Valid, 6540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-12-22 11:24:29,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4640 Valid, 4694 Invalid, 8424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1884 Valid, 6540 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-12-22 11:24:29,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2021-12-22 11:24:29,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 981. [2021-12-22 11:24:29,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 780 states have (on average 1.6) internal successors, (1248), 788 states have internal predecessors, (1248), 167 states have call successors, (167), 29 states have call predecessors, (167), 33 states have return successors, (188), 165 states have call predecessors, (188), 166 states have call successors, (188) [2021-12-22 11:24:29,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1603 transitions. [2021-12-22 11:24:29,819 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1603 transitions. Word has length 165 [2021-12-22 11:24:29,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:24:29,819 INFO L470 AbstractCegarLoop]: Abstraction has 981 states and 1603 transitions. [2021-12-22 11:24:29,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.642857142857142) internal successors, (163), 11 states have internal predecessors, (163), 4 states have call successors, (42), 6 states have call predecessors, (42), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) [2021-12-22 11:24:29,819 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1603 transitions. [2021-12-22 11:24:29,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-22 11:24:29,823 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:24:29,823 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:24:29,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-22 11:24:30,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:24:30,040 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:24:30,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:24:30,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1267507049, now seen corresponding path program 1 times [2021-12-22 11:24:30,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:24:30,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939449092] [2021-12-22 11:24:30,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:24:30,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:24:30,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:30,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:24:30,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:30,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:24:30,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:30,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:24:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:30,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:24:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:30,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:24:30,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:30,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 11:24:30,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:30,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 11:24:30,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:30,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-22 11:24:30,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:30,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-22 11:24:30,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:30,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-22 11:24:30,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:30,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 11:24:30,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:30,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-22 11:24:30,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:30,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-22 11:24:30,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:30,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-22 11:24:30,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:30,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-22 11:24:30,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:30,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-22 11:24:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:30,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:30,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:30,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-22 11:24:30,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:30,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:30,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:30,177 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-22 11:24:30,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:24:30,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939449092] [2021-12-22 11:24:30,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939449092] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:24:30,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:24:30,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 11:24:30,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221798465] [2021-12-22 11:24:30,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:24:30,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 11:24:30,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:24:30,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 11:24:30,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 11:24:30,180 INFO L87 Difference]: Start difference. First operand 981 states and 1603 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 11:24:31,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:24:31,709 INFO L93 Difference]: Finished difference Result 2537 states and 4239 transitions. [2021-12-22 11:24:31,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:24:31,710 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 168 [2021-12-22 11:24:31,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:24:31,719 INFO L225 Difference]: With dead ends: 2537 [2021-12-22 11:24:31,719 INFO L226 Difference]: Without dead ends: 1634 [2021-12-22 11:24:31,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:24:31,723 INFO L933 BasicCegarLoop]: 806 mSDtfsCounter, 1847 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 837 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1866 SdHoareTripleChecker+Valid, 1783 SdHoareTripleChecker+Invalid, 2139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 837 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-22 11:24:31,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1866 Valid, 1783 Invalid, 2139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [837 Valid, 1302 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-22 11:24:31,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2021-12-22 11:24:31,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1396. [2021-12-22 11:24:31,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1116 states have (on average 1.6200716845878136) internal successors, (1808), 1124 states have internal predecessors, (1808), 246 states have call successors, (246), 29 states have call predecessors, (246), 33 states have return successors, (277), 244 states have call predecessors, (277), 245 states have call successors, (277) [2021-12-22 11:24:31,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 2331 transitions. [2021-12-22 11:24:31,821 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 2331 transitions. Word has length 168 [2021-12-22 11:24:31,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:24:31,821 INFO L470 AbstractCegarLoop]: Abstraction has 1396 states and 2331 transitions. [2021-12-22 11:24:31,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 11:24:31,822 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 2331 transitions. [2021-12-22 11:24:31,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-12-22 11:24:31,827 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:24:31,828 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:24:31,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-22 11:24:31,828 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:24:31,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:24:31,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1970157718, now seen corresponding path program 1 times [2021-12-22 11:24:31,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:24:31,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480085014] [2021-12-22 11:24:31,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:24:31,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:24:31,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:31,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:24:31,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:31,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:24:31,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:31,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:24:31,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:31,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:24:31,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:31,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:24:31,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:31,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 11:24:31,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:31,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-22 11:24:31,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:31,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 11:24:31,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:31,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 11:24:31,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:31,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-22 11:24:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:31,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 11:24:31,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:31,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:24:31,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:31,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-22 11:24:31,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:31,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-22 11:24:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:31,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-22 11:24:31,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:31,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-22 11:24:31,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:31,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:31,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:31,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-22 11:24:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:31,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:31,911 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-22 11:24:31,911 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:24:31,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480085014] [2021-12-22 11:24:31,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480085014] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:24:31,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:24:31,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 11:24:31,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755072642] [2021-12-22 11:24:31,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:24:31,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 11:24:31,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:24:31,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 11:24:31,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 11:24:31,913 INFO L87 Difference]: Start difference. First operand 1396 states and 2331 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 11:24:33,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:24:33,388 INFO L93 Difference]: Finished difference Result 3576 states and 6052 transitions. [2021-12-22 11:24:33,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:24:33,389 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 169 [2021-12-22 11:24:33,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:24:33,397 INFO L225 Difference]: With dead ends: 3576 [2021-12-22 11:24:33,397 INFO L226 Difference]: Without dead ends: 2311 [2021-12-22 11:24:33,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:24:33,401 INFO L933 BasicCegarLoop]: 805 mSDtfsCounter, 1807 mSDsluCounter, 964 mSDsCounter, 0 mSdLazyCounter, 1290 mSolverCounterSat, 828 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1826 SdHoareTripleChecker+Valid, 1769 SdHoareTripleChecker+Invalid, 2118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 828 IncrementalHoareTripleChecker+Valid, 1290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-22 11:24:33,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1826 Valid, 1769 Invalid, 2118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [828 Valid, 1290 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-22 11:24:33,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2311 states. [2021-12-22 11:24:33,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2311 to 2073. [2021-12-22 11:24:33,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2073 states, 1674 states have (on average 1.6308243727598566) internal successors, (2730), 1682 states have internal predecessors, (2730), 365 states have call successors, (365), 29 states have call predecessors, (365), 33 states have return successors, (396), 363 states have call predecessors, (396), 364 states have call successors, (396) [2021-12-22 11:24:33,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 3491 transitions. [2021-12-22 11:24:33,494 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 3491 transitions. Word has length 169 [2021-12-22 11:24:33,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:24:33,494 INFO L470 AbstractCegarLoop]: Abstraction has 2073 states and 3491 transitions. [2021-12-22 11:24:33,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 11:24:33,495 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 3491 transitions. [2021-12-22 11:24:33,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-12-22 11:24:33,503 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:24:33,503 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:24:33,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-22 11:24:33,503 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:24:33,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:24:33,504 INFO L85 PathProgramCache]: Analyzing trace with hash -921327383, now seen corresponding path program 1 times [2021-12-22 11:24:33,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:24:33,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541099226] [2021-12-22 11:24:33,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:24:33,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:24:33,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:33,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:24:33,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:33,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:24:33,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:33,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:24:33,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:33,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:24:33,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:33,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:24:33,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:33,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 11:24:33,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:33,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 11:24:33,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:33,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 11:24:33,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:33,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-22 11:24:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:33,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-22 11:24:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:33,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-22 11:24:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:33,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-22 11:24:33,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:33,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-22 11:24:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:33,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-22 11:24:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:33,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-22 11:24:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:33,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-22 11:24:33,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:33,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:33,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-22 11:24:33,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:33,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:33,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:33,614 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-22 11:24:33,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:24:33,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541099226] [2021-12-22 11:24:33,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541099226] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:24:33,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:24:33,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 11:24:33,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433167875] [2021-12-22 11:24:33,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:24:33,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 11:24:33,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:24:33,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 11:24:33,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 11:24:33,617 INFO L87 Difference]: Start difference. First operand 2073 states and 3491 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 11:24:35,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:24:35,147 INFO L93 Difference]: Finished difference Result 5161 states and 8831 transitions. [2021-12-22 11:24:35,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:24:35,147 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 170 [2021-12-22 11:24:35,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:24:35,160 INFO L225 Difference]: With dead ends: 5161 [2021-12-22 11:24:35,160 INFO L226 Difference]: Without dead ends: 3354 [2021-12-22 11:24:35,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:24:35,166 INFO L933 BasicCegarLoop]: 812 mSDtfsCounter, 1786 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 804 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1804 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 2108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 804 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-22 11:24:35,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1804 Valid, 1756 Invalid, 2108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [804 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-22 11:24:35,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3354 states. [2021-12-22 11:24:35,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3354 to 3116. [2021-12-22 11:24:35,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 2555 states have (on average 1.6391389432485324) internal successors, (4188), 2563 states have internal predecessors, (4188), 527 states have call successors, (527), 29 states have call predecessors, (527), 33 states have return successors, (574), 525 states have call predecessors, (574), 526 states have call successors, (574) [2021-12-22 11:24:35,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5289 transitions. [2021-12-22 11:24:35,320 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5289 transitions. Word has length 170 [2021-12-22 11:24:35,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:24:35,320 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5289 transitions. [2021-12-22 11:24:35,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 11:24:35,320 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5289 transitions. [2021-12-22 11:24:35,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-12-22 11:24:35,332 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:24:35,332 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:24:35,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-22 11:24:35,333 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:24:35,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:24:35,333 INFO L85 PathProgramCache]: Analyzing trace with hash 696120073, now seen corresponding path program 1 times [2021-12-22 11:24:35,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:24:35,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364104246] [2021-12-22 11:24:35,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:24:35,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:24:35,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:35,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:24:35,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:35,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:24:35,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:35,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:24:35,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:35,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:24:35,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:35,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:24:35,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:35,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 11:24:35,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:35,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-22 11:24:35,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:35,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 11:24:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:35,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-22 11:24:35,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:35,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 11:24:35,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:35,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-22 11:24:35,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:35,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-22 11:24:35,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:35,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-22 11:24:35,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:35,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 11:24:35,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:35,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 11:24:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:35,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-22 11:24:35,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:35,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:35,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:35,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-22 11:24:35,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:35,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:35,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:35,414 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-22 11:24:35,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:24:35,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364104246] [2021-12-22 11:24:35,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364104246] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:24:35,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:24:35,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 11:24:35,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093786983] [2021-12-22 11:24:35,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:24:35,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 11:24:35,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:24:35,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 11:24:35,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 11:24:35,416 INFO L87 Difference]: Start difference. First operand 3116 states and 5289 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 11:24:37,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:24:37,009 INFO L93 Difference]: Finished difference Result 7675 states and 13246 transitions. [2021-12-22 11:24:37,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:24:37,009 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 171 [2021-12-22 11:24:37,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:24:37,046 INFO L225 Difference]: With dead ends: 7675 [2021-12-22 11:24:37,052 INFO L226 Difference]: Without dead ends: 5044 [2021-12-22 11:24:37,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:24:37,076 INFO L933 BasicCegarLoop]: 820 mSDtfsCounter, 1776 mSDsluCounter, 946 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 800 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1795 SdHoareTripleChecker+Valid, 1766 SdHoareTripleChecker+Invalid, 2120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 800 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-22 11:24:37,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1795 Valid, 1766 Invalid, 2120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [800 Valid, 1320 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-22 11:24:37,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5044 states. [2021-12-22 11:24:37,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5044 to 4806. [2021-12-22 11:24:37,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4806 states, 4000 states have (on average 1.645) internal successors, (6580), 4008 states have internal predecessors, (6580), 772 states have call successors, (772), 29 states have call predecessors, (772), 33 states have return successors, (845), 770 states have call predecessors, (845), 771 states have call successors, (845) [2021-12-22 11:24:37,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4806 states to 4806 states and 8197 transitions. [2021-12-22 11:24:37,397 INFO L78 Accepts]: Start accepts. Automaton has 4806 states and 8197 transitions. Word has length 171 [2021-12-22 11:24:37,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:24:37,397 INFO L470 AbstractCegarLoop]: Abstraction has 4806 states and 8197 transitions. [2021-12-22 11:24:37,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 11:24:37,398 INFO L276 IsEmpty]: Start isEmpty. Operand 4806 states and 8197 transitions. [2021-12-22 11:24:37,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-12-22 11:24:37,446 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:24:37,446 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:24:37,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-22 11:24:37,446 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:24:37,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:24:37,447 INFO L85 PathProgramCache]: Analyzing trace with hash -253267998, now seen corresponding path program 1 times [2021-12-22 11:24:37,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:24:37,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186480494] [2021-12-22 11:24:37,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:24:37,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:24:37,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:37,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:24:37,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:37,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:24:37,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:37,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:24:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:37,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:24:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:37,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:24:37,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:37,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 11:24:37,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:37,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-22 11:24:37,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:37,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-22 11:24:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:37,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 11:24:37,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:37,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-22 11:24:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:37,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-22 11:24:37,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:37,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-22 11:24:37,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:37,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 11:24:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:37,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-22 11:24:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:37,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-22 11:24:37,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:37,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-22 11:24:37,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:37,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-22 11:24:37,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:37,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-22 11:24:37,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:37,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-22 11:24:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:37,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:37,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:37,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-22 11:24:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:37,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:37,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:37,540 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-22 11:24:37,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:24:37,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186480494] [2021-12-22 11:24:37,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186480494] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:24:37,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:24:37,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 11:24:37,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874281279] [2021-12-22 11:24:37,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:24:37,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 11:24:37,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:24:37,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 11:24:37,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 11:24:37,542 INFO L87 Difference]: Start difference. First operand 4806 states and 8197 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-22 11:24:39,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:24:39,067 INFO L93 Difference]: Finished difference Result 11876 states and 20623 transitions. [2021-12-22 11:24:39,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:24:39,067 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 191 [2021-12-22 11:24:39,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:24:39,098 INFO L225 Difference]: With dead ends: 11876 [2021-12-22 11:24:39,099 INFO L226 Difference]: Without dead ends: 7887 [2021-12-22 11:24:39,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:24:39,141 INFO L933 BasicCegarLoop]: 783 mSDtfsCounter, 1923 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 845 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1941 SdHoareTripleChecker+Valid, 1745 SdHoareTripleChecker+Invalid, 2101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 845 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-22 11:24:39,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1941 Valid, 1745 Invalid, 2101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [845 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-22 11:24:39,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7887 states. [2021-12-22 11:24:39,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7887 to 7649. [2021-12-22 11:24:39,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7649 states, 6350 states have (on average 1.6439370078740156) internal successors, (10439), 6358 states have internal predecessors, (10439), 1265 states have call successors, (1265), 29 states have call predecessors, (1265), 33 states have return successors, (1382), 1263 states have call predecessors, (1382), 1264 states have call successors, (1382) [2021-12-22 11:24:39,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7649 states to 7649 states and 13086 transitions. [2021-12-22 11:24:39,502 INFO L78 Accepts]: Start accepts. Automaton has 7649 states and 13086 transitions. Word has length 191 [2021-12-22 11:24:39,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:24:39,503 INFO L470 AbstractCegarLoop]: Abstraction has 7649 states and 13086 transitions. [2021-12-22 11:24:39,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-22 11:24:39,503 INFO L276 IsEmpty]: Start isEmpty. Operand 7649 states and 13086 transitions. [2021-12-22 11:24:39,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-12-22 11:24:39,526 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:24:39,526 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:24:39,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-22 11:24:39,526 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:24:39,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:24:39,527 INFO L85 PathProgramCache]: Analyzing trace with hash 819222693, now seen corresponding path program 1 times [2021-12-22 11:24:39,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:24:39,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833040941] [2021-12-22 11:24:39,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:24:39,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:24:39,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:39,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:24:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:39,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:24:39,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:39,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:24:39,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:39,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:24:39,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:39,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:24:39,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:39,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 11:24:39,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:39,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-22 11:24:39,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:39,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-22 11:24:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:39,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-22 11:24:39,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:39,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-22 11:24:39,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:39,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-22 11:24:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:39,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-22 11:24:39,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:39,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-22 11:24:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:39,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-22 11:24:39,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:39,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-22 11:24:39,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:39,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-22 11:24:39,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:39,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:39,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-22 11:24:39,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:39,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:39,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:39,614 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-22 11:24:39,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:24:39,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833040941] [2021-12-22 11:24:39,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833040941] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:24:39,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:24:39,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 11:24:39,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581021157] [2021-12-22 11:24:39,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:24:39,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 11:24:39,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:24:39,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 11:24:39,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 11:24:39,616 INFO L87 Difference]: Start difference. First operand 7649 states and 13086 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 11:24:41,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:24:41,291 INFO L93 Difference]: Finished difference Result 19491 states and 33899 transitions. [2021-12-22 11:24:41,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:24:41,292 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 173 [2021-12-22 11:24:41,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:24:41,331 INFO L225 Difference]: With dead ends: 19491 [2021-12-22 11:24:41,331 INFO L226 Difference]: Without dead ends: 13061 [2021-12-22 11:24:41,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:24:41,348 INFO L933 BasicCegarLoop]: 803 mSDtfsCounter, 1825 mSDsluCounter, 955 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 799 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1843 SdHoareTripleChecker+Valid, 1758 SdHoareTripleChecker+Invalid, 2107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 799 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-22 11:24:41,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1843 Valid, 1758 Invalid, 2107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [799 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-22 11:24:41,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13061 states. [2021-12-22 11:24:41,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13061 to 12823. [2021-12-22 11:24:41,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12823 states, 10702 states have (on average 1.6447393010652214) internal successors, (17602), 10710 states have internal predecessors, (17602), 2087 states have call successors, (2087), 29 states have call predecessors, (2087), 33 states have return successors, (2282), 2085 states have call predecessors, (2282), 2086 states have call successors, (2282) [2021-12-22 11:24:41,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12823 states to 12823 states and 21971 transitions. [2021-12-22 11:24:41,942 INFO L78 Accepts]: Start accepts. Automaton has 12823 states and 21971 transitions. Word has length 173 [2021-12-22 11:24:41,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:24:41,942 INFO L470 AbstractCegarLoop]: Abstraction has 12823 states and 21971 transitions. [2021-12-22 11:24:41,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 11:24:41,942 INFO L276 IsEmpty]: Start isEmpty. Operand 12823 states and 21971 transitions. [2021-12-22 11:24:41,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-12-22 11:24:41,975 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:24:41,976 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:24:41,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-22 11:24:41,976 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:24:41,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:24:41,976 INFO L85 PathProgramCache]: Analyzing trace with hash -319875777, now seen corresponding path program 1 times [2021-12-22 11:24:41,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:24:41,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783307382] [2021-12-22 11:24:41,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:24:41,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:24:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:42,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:24:42,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:42,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:24:42,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:42,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:24:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:42,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:24:42,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:42,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:24:42,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:42,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 11:24:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:42,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 11:24:42,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:42,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-22 11:24:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:42,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-22 11:24:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:42,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-22 11:24:42,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:42,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-22 11:24:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:42,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 11:24:42,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:42,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-22 11:24:42,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:42,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-22 11:24:42,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:42,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-22 11:24:42,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:42,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-22 11:24:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:42,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:42,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:42,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-22 11:24:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:42,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:42,066 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-22 11:24:42,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:24:42,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783307382] [2021-12-22 11:24:42,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783307382] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:24:42,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:24:42,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 11:24:42,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996258000] [2021-12-22 11:24:42,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:24:42,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 11:24:42,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:24:42,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 11:24:42,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 11:24:42,069 INFO L87 Difference]: Start difference. First operand 12823 states and 21971 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 11:24:44,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:24:44,155 INFO L93 Difference]: Finished difference Result 30974 states and 53599 transitions. [2021-12-22 11:24:44,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:24:44,155 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 174 [2021-12-22 11:24:44,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:24:44,211 INFO L225 Difference]: With dead ends: 30974 [2021-12-22 11:24:44,212 INFO L226 Difference]: Without dead ends: 20374 [2021-12-22 11:24:44,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:24:44,234 INFO L933 BasicCegarLoop]: 782 mSDtfsCounter, 1862 mSDsluCounter, 912 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 831 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1881 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 2113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 831 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-22 11:24:44,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1881 Valid, 1694 Invalid, 2113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [831 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-22 11:24:44,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20374 states. [2021-12-22 11:24:45,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20374 to 20136. [2021-12-22 11:24:45,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20136 states, 16812 states have (on average 1.6207470854151795) internal successors, (27248), 16820 states have internal predecessors, (27248), 3290 states have call successors, (3290), 29 states have call predecessors, (3290), 33 states have return successors, (3629), 3288 states have call predecessors, (3629), 3289 states have call successors, (3629) [2021-12-22 11:24:45,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20136 states to 20136 states and 34167 transitions. [2021-12-22 11:24:45,257 INFO L78 Accepts]: Start accepts. Automaton has 20136 states and 34167 transitions. Word has length 174 [2021-12-22 11:24:45,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:24:45,258 INFO L470 AbstractCegarLoop]: Abstraction has 20136 states and 34167 transitions. [2021-12-22 11:24:45,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 11:24:45,258 INFO L276 IsEmpty]: Start isEmpty. Operand 20136 states and 34167 transitions. [2021-12-22 11:24:45,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-12-22 11:24:45,299 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:24:45,300 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:24:45,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-22 11:24:45,300 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:24:45,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:24:45,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1594675541, now seen corresponding path program 1 times [2021-12-22 11:24:45,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:24:45,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126385934] [2021-12-22 11:24:45,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:24:45,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:24:45,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:45,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:24:45,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:45,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:24:45,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:45,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:24:45,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:45,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:24:45,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:45,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:24:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:45,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 11:24:45,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:45,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 11:24:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:45,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-22 11:24:45,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:45,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-22 11:24:45,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:45,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-22 11:24:45,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:45,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-22 11:24:45,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:45,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 11:24:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:45,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-22 11:24:45,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:45,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 11:24:45,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:45,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 11:24:45,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:45,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-22 11:24:45,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:45,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-22 11:24:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:45,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-22 11:24:45,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:45,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-22 11:24:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:45,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:45,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:45,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-22 11:24:45,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:45,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:45,416 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-22 11:24:45,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:24:45,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126385934] [2021-12-22 11:24:45,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126385934] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:24:45,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:24:45,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 11:24:45,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154997593] [2021-12-22 11:24:45,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:24:45,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 11:24:45,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:24:45,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 11:24:45,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 11:24:45,419 INFO L87 Difference]: Start difference. First operand 20136 states and 34167 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-22 11:24:48,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:24:48,104 INFO L93 Difference]: Finished difference Result 53416 states and 92133 transitions. [2021-12-22 11:24:48,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:24:48,105 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 194 [2021-12-22 11:24:48,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:24:48,199 INFO L225 Difference]: With dead ends: 53416 [2021-12-22 11:24:48,199 INFO L226 Difference]: Without dead ends: 36180 [2021-12-22 11:24:48,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:24:48,236 INFO L933 BasicCegarLoop]: 845 mSDtfsCounter, 1766 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 1332 mSolverCounterSat, 815 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1784 SdHoareTripleChecker+Valid, 1799 SdHoareTripleChecker+Invalid, 2147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 815 IncrementalHoareTripleChecker+Valid, 1332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-22 11:24:48,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1784 Valid, 1799 Invalid, 2147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [815 Valid, 1332 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-22 11:24:48,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36180 states. [2021-12-22 11:24:49,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36180 to 35942. [2021-12-22 11:24:49,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35942 states, 30168 states have (on average 1.61793953858393) internal successors, (48810), 30176 states have internal predecessors, (48810), 5740 states have call successors, (5740), 29 states have call predecessors, (5740), 33 states have return successors, (6353), 5738 states have call predecessors, (6353), 5739 states have call successors, (6353) [2021-12-22 11:24:50,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35942 states to 35942 states and 60903 transitions. [2021-12-22 11:24:50,092 INFO L78 Accepts]: Start accepts. Automaton has 35942 states and 60903 transitions. Word has length 194 [2021-12-22 11:24:50,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:24:50,093 INFO L470 AbstractCegarLoop]: Abstraction has 35942 states and 60903 transitions. [2021-12-22 11:24:50,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-22 11:24:50,093 INFO L276 IsEmpty]: Start isEmpty. Operand 35942 states and 60903 transitions. [2021-12-22 11:24:50,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-12-22 11:24:50,148 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:24:50,148 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:24:50,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-22 11:24:50,149 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:24:50,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:24:50,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1836023685, now seen corresponding path program 1 times [2021-12-22 11:24:50,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:24:50,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49791138] [2021-12-22 11:24:50,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:24:50,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:24:50,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:50,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:24:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:50,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:24:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:50,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:24:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:50,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:24:50,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:50,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:24:50,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:50,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 11:24:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:50,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 11:24:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:50,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 11:24:50,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:50,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-22 11:24:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:50,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-22 11:24:50,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:50,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-22 11:24:50,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:50,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-22 11:24:50,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:50,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-22 11:24:50,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:50,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-22 11:24:50,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:50,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-22 11:24:50,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:50,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-22 11:24:50,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:50,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:50,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:50,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-22 11:24:50,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:50,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:50,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:50,230 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-22 11:24:50,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:24:50,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49791138] [2021-12-22 11:24:50,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49791138] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:24:50,231 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:24:50,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 11:24:50,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354113475] [2021-12-22 11:24:50,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:24:50,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 11:24:50,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:24:50,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 11:24:50,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 11:24:50,233 INFO L87 Difference]: Start difference. First operand 35942 states and 60903 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 11:24:54,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:24:54,028 INFO L93 Difference]: Finished difference Result 98263 states and 168692 transitions. [2021-12-22 11:24:54,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:24:54,028 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 176 [2021-12-22 11:24:54,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:24:54,429 INFO L225 Difference]: With dead ends: 98263 [2021-12-22 11:24:54,429 INFO L226 Difference]: Without dead ends: 66177 [2021-12-22 11:24:54,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:24:54,488 INFO L933 BasicCegarLoop]: 791 mSDtfsCounter, 1842 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 842 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1861 SdHoareTripleChecker+Valid, 1735 SdHoareTripleChecker+Invalid, 2139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 842 IncrementalHoareTripleChecker+Valid, 1297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-22 11:24:54,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1861 Valid, 1735 Invalid, 2139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [842 Valid, 1297 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-22 11:24:54,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66177 states. [2021-12-22 11:24:57,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66177 to 65939. [2021-12-22 11:24:57,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65939 states, 55652 states have (on average 1.6140120750377345) internal successors, (89823), 55660 states have internal predecessors, (89823), 10253 states have call successors, (10253), 29 states have call predecessors, (10253), 33 states have return successors, (11398), 10251 states have call predecessors, (11398), 10252 states have call successors, (11398) [2021-12-22 11:24:57,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65939 states to 65939 states and 111474 transitions. [2021-12-22 11:24:57,856 INFO L78 Accepts]: Start accepts. Automaton has 65939 states and 111474 transitions. Word has length 176 [2021-12-22 11:24:57,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:24:57,858 INFO L470 AbstractCegarLoop]: Abstraction has 65939 states and 111474 transitions. [2021-12-22 11:24:57,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 11:24:57,859 INFO L276 IsEmpty]: Start isEmpty. Operand 65939 states and 111474 transitions. [2021-12-22 11:24:57,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-22 11:24:57,987 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:24:57,988 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:24:57,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-22 11:24:57,988 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:24:57,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:24:57,988 INFO L85 PathProgramCache]: Analyzing trace with hash 88813796, now seen corresponding path program 1 times [2021-12-22 11:24:57,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:24:57,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535267436] [2021-12-22 11:24:57,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:24:57,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:24:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:58,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:24:58,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:58,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:24:58,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:58,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:24:58,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:58,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:24:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:58,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:24:58,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:58,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 11:24:58,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:58,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-22 11:24:58,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:58,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-22 11:24:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:58,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-22 11:24:58,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:58,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 11:24:58,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:58,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-22 11:24:58,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:58,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 11:24:58,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:58,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 11:24:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:58,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 11:24:58,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:58,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-22 11:24:58,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:58,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-22 11:24:58,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:58,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:58,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-22 11:24:58,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:58,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:24:58,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:24:58,070 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-22 11:24:58,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:24:58,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535267436] [2021-12-22 11:24:58,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535267436] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:24:58,071 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:24:58,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 11:24:58,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392963786] [2021-12-22 11:24:58,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:24:58,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 11:24:58,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:24:58,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 11:24:58,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 11:24:58,072 INFO L87 Difference]: Start difference. First operand 65939 states and 111474 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 11:25:03,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:25:03,936 INFO L93 Difference]: Finished difference Result 123924 states and 213125 transitions. [2021-12-22 11:25:03,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:25:03,937 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 177 [2021-12-22 11:25:03,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:25:04,372 INFO L225 Difference]: With dead ends: 123924 [2021-12-22 11:25:04,372 INFO L226 Difference]: Without dead ends: 123665 [2021-12-22 11:25:04,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:25:04,430 INFO L933 BasicCegarLoop]: 819 mSDtfsCounter, 1740 mSDsluCounter, 946 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 806 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1759 SdHoareTripleChecker+Valid, 1765 SdHoareTripleChecker+Invalid, 2147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 806 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-22 11:25:04,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1759 Valid, 1765 Invalid, 2147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [806 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-22 11:25:04,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123665 states. [2021-12-22 11:25:10,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123665 to 123427. [2021-12-22 11:25:10,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123427 states, 104772 states have (on average 1.6089699538044515) internal successors, (168575), 104780 states have internal predecessors, (168575), 18621 states have call successors, (18621), 29 states have call predecessors, (18621), 33 states have return successors, (20812), 18619 states have call predecessors, (20812), 18620 states have call successors, (20812) [2021-12-22 11:25:11,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123427 states to 123427 states and 208008 transitions. [2021-12-22 11:25:11,323 INFO L78 Accepts]: Start accepts. Automaton has 123427 states and 208008 transitions. Word has length 177 [2021-12-22 11:25:11,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:25:11,323 INFO L470 AbstractCegarLoop]: Abstraction has 123427 states and 208008 transitions. [2021-12-22 11:25:11,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-22 11:25:11,324 INFO L276 IsEmpty]: Start isEmpty. Operand 123427 states and 208008 transitions. [2021-12-22 11:25:11,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-12-22 11:25:11,466 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:25:11,467 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:25:11,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-22 11:25:11,467 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:25:11,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:25:11,467 INFO L85 PathProgramCache]: Analyzing trace with hash -59218423, now seen corresponding path program 1 times [2021-12-22 11:25:11,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:25:11,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568398711] [2021-12-22 11:25:11,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:25:11,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:25:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:25:11,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 11:25:11,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:25:11,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 11:25:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:25:11,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 11:25:11,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:25:11,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 11:25:11,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:25:11,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 11:25:11,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:25:11,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 11:25:11,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:25:11,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-22 11:25:11,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:25:11,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 11:25:11,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:25:11,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-22 11:25:11,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:25:11,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 11:25:11,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:25:11,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-22 11:25:11,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:25:11,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 11:25:11,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:25:11,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-22 11:25:11,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:25:11,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-22 11:25:11,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:25:11,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-22 11:25:11,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:25:11,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-22 11:25:11,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:25:11,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-22 11:25:11,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:25:11,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-22 11:25:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:25:11,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-22 11:25:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:25:11,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:25:11,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:25:11,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-22 11:25:11,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:25:11,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 11:25:11,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:25:11,587 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-22 11:25:11,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:25:11,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568398711] [2021-12-22 11:25:11,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568398711] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:25:11,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:25:11,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-22 11:25:11,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755112462] [2021-12-22 11:25:11,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:25:11,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-22 11:25:11,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:25:11,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-22 11:25:11,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-22 11:25:11,589 INFO L87 Difference]: Start difference. First operand 123427 states and 208008 transitions. Second operand has 10 states, 10 states have (on average 11.8) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (24), 7 states have call predecessors, (24), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21)