./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 c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_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-tmp.no-commuhash-c3fed41 [2021-12-17 14:52:41,453 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 14:52:41,454 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 14:52:41,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 14:52:41,495 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 14:52:41,495 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 14:52:41,497 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 14:52:41,500 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 14:52:41,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 14:52:41,502 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 14:52:41,503 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 14:52:41,504 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 14:52:41,504 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 14:52:41,506 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 14:52:41,507 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 14:52:41,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 14:52:41,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 14:52:41,513 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 14:52:41,514 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 14:52:41,518 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 14:52:41,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 14:52:41,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 14:52:41,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 14:52:41,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 14:52:41,523 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 14:52:41,524 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 14:52:41,524 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 14:52:41,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 14:52:41,525 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 14:52:41,525 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 14:52:41,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 14:52:41,526 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 14:52:41,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 14:52:41,527 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 14:52:41,528 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 14:52:41,528 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 14:52:41,529 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 14:52:41,529 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 14:52:41,529 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 14:52:41,530 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 14:52:41,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 14:52:41,531 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 14:52:41,546 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 14:52:41,546 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 14:52:41,547 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 14:52:41,547 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 14:52:41,548 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 14:52:41,548 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 14:52:41,548 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 14:52:41,549 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 14:52:41,549 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 14:52:41,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 14:52:41,549 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 14:52:41,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 14:52:41,550 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 14:52:41,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 14:52:41,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 14:52:41,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 14:52:41,550 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 14:52:41,551 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 14:52:41,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 14:52:41,551 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 14:52:41,551 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 14:52:41,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 14:52:41,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 14:52:41,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 14:52:41,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 14:52:41,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 14:52:41,552 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 14:52:41,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 14:52:41,553 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 14:52:41,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 14:52:41,553 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 14:52:41,553 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 14:52:41,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 14:52:41,554 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 14:52:41,554 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97d4c6be733483d74e70aacf7c001bc7f4ca03733e33a8c0b4370e9380a7e003 [2021-12-17 14:52:41,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 14:52:41,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 14:52:41,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 14:52:41,771 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 14:52:41,771 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 14:52:41,772 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec11_product35.cil.c [2021-12-17 14:52:41,844 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8706c8a3/ddf9039666a04132ad313c2c9e1ac5b4/FLAG40211e883 [2021-12-17 14:52:42,395 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 14:52:42,396 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec11_product35.cil.c [2021-12-17 14:52:42,424 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8706c8a3/ddf9039666a04132ad313c2c9e1ac5b4/FLAG40211e883 [2021-12-17 14:52:42,876 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8706c8a3/ddf9039666a04132ad313c2c9e1ac5b4 [2021-12-17 14:52:42,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 14:52:42,880 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 14:52:42,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 14:52:42,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 14:52:42,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 14:52:42,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 02:52:42" (1/1) ... [2021-12-17 14:52:42,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1997536b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:52:42, skipping insertion in model container [2021-12-17 14:52:42,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 02:52:42" (1/1) ... [2021-12-17 14:52:42,891 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 14:52:42,938 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 14:52:43,503 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] [2021-12-17 14:52:43,545 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 14:52:43,556 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 14:52:43,636 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] [2021-12-17 14:52:43,644 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 14:52:43,668 INFO L208 MainTranslator]: Completed translation [2021-12-17 14:52:43,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:52:43 WrapperNode [2021-12-17 14:52:43,669 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 14:52:43,677 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 14:52:43,677 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 14:52:43,677 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 14:52:43,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:52:43" (1/1) ... [2021-12-17 14:52:43,709 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:52:43" (1/1) ... [2021-12-17 14:52:43,793 INFO L137 Inliner]: procedures = 137, calls = 246, calls flagged for inlining = 66, calls inlined = 63, statements flattened = 1142 [2021-12-17 14:52:43,794 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 14:52:43,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 14:52:43,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 14:52:43,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 14:52:43,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:52:43" (1/1) ... [2021-12-17 14:52:43,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:52:43" (1/1) ... [2021-12-17 14:52:43,820 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:52:43" (1/1) ... [2021-12-17 14:52:43,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:52:43" (1/1) ... [2021-12-17 14:52:43,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:52:43" (1/1) ... [2021-12-17 14:52:43,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:52:43" (1/1) ... [2021-12-17 14:52:43,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:52:43" (1/1) ... [2021-12-17 14:52:43,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 14:52:43,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 14:52:43,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 14:52:43,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 14:52:43,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:52:43" (1/1) ... [2021-12-17 14:52:43,932 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 14:52:43,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 14:52:43,958 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-17 14:52:43,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-17 14:52:44,013 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-12-17 14:52:44,013 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-12-17 14:52:44,013 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-17 14:52:44,013 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-17 14:52:44,013 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-12-17 14:52:44,014 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-12-17 14:52:44,014 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-17 14:52:44,014 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-17 14:52:44,014 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-12-17 14:52:44,014 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-12-17 14:52:44,014 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-17 14:52:44,014 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-17 14:52:44,014 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2021-12-17 14:52:44,015 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2021-12-17 14:52:44,015 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-17 14:52:44,015 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-17 14:52:44,015 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-12-17 14:52:44,015 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-12-17 14:52:44,015 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-17 14:52:44,015 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-17 14:52:44,015 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-12-17 14:52:44,016 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-12-17 14:52:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-12-17 14:52:44,016 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-12-17 14:52:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-17 14:52:44,016 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-17 14:52:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-17 14:52:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-12-17 14:52:44,016 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-12-17 14:52:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2021-12-17 14:52:44,017 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2021-12-17 14:52:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-17 14:52:44,017 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-17 14:52:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 14:52:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-12-17 14:52:44,018 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-12-17 14:52:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2021-12-17 14:52:44,018 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2021-12-17 14:52:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-17 14:52:44,018 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-17 14:52:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-17 14:52:44,019 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-17 14:52:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-17 14:52:44,019 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-17 14:52:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-17 14:52:44,019 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-17 14:52:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2021-12-17 14:52:44,019 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2021-12-17 14:52:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-17 14:52:44,020 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-17 14:52:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-12-17 14:52:44,020 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-12-17 14:52:44,020 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-17 14:52:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-17 14:52:44,021 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-17 14:52:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-17 14:52:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 14:52:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-17 14:52:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-17 14:52:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-17 14:52:44,023 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-17 14:52:44,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 14:52:44,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 14:52:44,279 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 14:52:44,287 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 14:52:44,793 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 14:52:44,806 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 14:52:44,806 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-17 14:52:44,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 02:52:44 BoogieIcfgContainer [2021-12-17 14:52:44,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 14:52:44,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 14:52:44,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 14:52:44,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 14:52:44,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 02:52:42" (1/3) ... [2021-12-17 14:52:44,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2869dedf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 02:52:44, skipping insertion in model container [2021-12-17 14:52:44,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 02:52:43" (2/3) ... [2021-12-17 14:52:44,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2869dedf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 02:52:44, skipping insertion in model container [2021-12-17 14:52:44,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 02:52:44" (3/3) ... [2021-12-17 14:52:44,816 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec11_product35.cil.c [2021-12-17 14:52:44,820 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 14:52:44,820 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 14:52:44,851 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 14:52:44,856 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 14:52:44,856 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 14:52:44,877 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) [2021-12-17 14:52:44,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-12-17 14:52:44,890 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:52:44,891 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] [2021-12-17 14:52:44,891 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:52:44,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:52:44,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1750999411, now seen corresponding path program 1 times [2021-12-17 14:52:44,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:52:44,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793494083] [2021-12-17 14:52:44,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:52:44,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:52:45,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:45,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:52:45,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:45,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:52:45,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:45,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:52:45,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:45,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 14:52:45,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:45,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 14:52:45,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:45,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 14:52:45,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:45,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-17 14:52:45,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:45,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-17 14:52:45,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:45,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-17 14:52:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:45,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-17 14:52:45,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:45,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-17 14:52:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:45,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-17 14:52:45,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:45,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-17 14:52:45,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:45,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-17 14:52:45,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:45,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-17 14:52:45,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:45,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-17 14:52:45,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:45,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-17 14:52:45,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:45,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-17 14:52:45,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:45,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-17 14:52:45,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:45,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:52:45,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:45,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-17 14:52:45,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:45,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:52:45,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:45,235 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-12-17 14:52:45,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:52:45,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793494083] [2021-12-17 14:52:45,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793494083] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 14:52:45,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828550762] [2021-12-17 14:52:45,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:52:45,237 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:52:45,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 14:52:45,238 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 14:52:45,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 14:52:45,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:45,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 1400 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-17 14:52:45,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 14:52:45,748 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-12-17 14:52:45,748 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 14:52:45,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828550762] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:52:45,749 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 14:52:45,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-12-17 14:52:45,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163184786] [2021-12-17 14:52:45,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:52:45,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 14:52:45,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:52:45,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 14:52:45,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 14:52:45,775 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) [2021-12-17 14:52:45,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:52:45,820 INFO L93 Difference]: Finished difference Result 728 states and 1078 transitions. [2021-12-17 14:52:45,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 14:52:45,829 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 [2021-12-17 14:52:45,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:52:45,839 INFO L225 Difference]: With dead ends: 728 [2021-12-17 14:52:45,840 INFO L226 Difference]: Without dead ends: 456 [2021-12-17 14:52:45,845 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 [2021-12-17 14:52:45,850 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 [2021-12-17 14:52:45,851 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] [2021-12-17 14:52:45,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2021-12-17 14:52:45,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2021-12-17 14:52:45,911 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) [2021-12-17 14:52:45,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 686 transitions. [2021-12-17 14:52:45,916 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 686 transitions. Word has length 167 [2021-12-17 14:52:45,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:52:45,917 INFO L470 AbstractCegarLoop]: Abstraction has 456 states and 686 transitions. [2021-12-17 14:52:45,917 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) [2021-12-17 14:52:45,917 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 686 transitions. [2021-12-17 14:52:45,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-17 14:52:45,921 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:52:45,922 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] [2021-12-17 14:52:45,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-17 14:52:46,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-12-17 14:52:46,136 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:52:46,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:52:46,137 INFO L85 PathProgramCache]: Analyzing trace with hash 305354623, now seen corresponding path program 1 times [2021-12-17 14:52:46,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:52:46,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4941737] [2021-12-17 14:52:46,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:52:46,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:52:46,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:46,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:52:46,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:46,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:52:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:46,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:52:46,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:46,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 14:52:46,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:46,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 14:52:46,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:46,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 14:52:46,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:46,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-17 14:52:46,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:46,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-17 14:52:46,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:46,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-17 14:52:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:46,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-17 14:52:46,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:46,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-17 14:52:46,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:46,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-17 14:52:46,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:46,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-17 14:52:46,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:46,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-17 14:52:46,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:46,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-17 14:52:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:46,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-17 14:52:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:46,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-17 14:52:46,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:46,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-17 14:52:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:46,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-17 14:52:46,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:46,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:52:46,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:46,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-17 14:52:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:46,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:52:46,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:46,334 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-12-17 14:52:46,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:52:46,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4941737] [2021-12-17 14:52:46,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4941737] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 14:52:46,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973429860] [2021-12-17 14:52:46,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:52:46,335 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:52:46,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 14:52:46,336 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 14:52:46,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-17 14:52:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:46,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 1401 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 14:52:46,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 14:52:46,836 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-12-17 14:52:46,837 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 14:52:46,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973429860] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:52:46,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 14:52:46,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-17 14:52:46,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652584294] [2021-12-17 14:52:46,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:52:46,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 14:52:46,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:52:46,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 14:52:46,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 14:52:46,840 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) [2021-12-17 14:52:46,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:52:46,872 INFO L93 Difference]: Finished difference Result 718 states and 1056 transitions. [2021-12-17 14:52:46,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 14:52:46,872 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 [2021-12-17 14:52:46,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:52:46,876 INFO L225 Difference]: With dead ends: 718 [2021-12-17 14:52:46,876 INFO L226 Difference]: Without dead ends: 459 [2021-12-17 14:52:46,878 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 [2021-12-17 14:52:46,879 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 [2021-12-17 14:52:46,879 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] [2021-12-17 14:52:46,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2021-12-17 14:52:46,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 458. [2021-12-17 14:52:46,907 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) [2021-12-17 14:52:46,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 688 transitions. [2021-12-17 14:52:46,910 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 688 transitions. Word has length 168 [2021-12-17 14:52:46,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:52:46,911 INFO L470 AbstractCegarLoop]: Abstraction has 458 states and 688 transitions. [2021-12-17 14:52:46,911 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) [2021-12-17 14:52:46,911 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 688 transitions. [2021-12-17 14:52:46,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-17 14:52:46,914 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:52:46,914 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] [2021-12-17 14:52:46,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-17 14:52:47,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-12-17 14:52:47,126 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:52:47,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:52:47,127 INFO L85 PathProgramCache]: Analyzing trace with hash 2123478460, now seen corresponding path program 1 times [2021-12-17 14:52:47,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:52:47,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177126465] [2021-12-17 14:52:47,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:52:47,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:52:47,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:47,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:52:47,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:47,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:52:47,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:47,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:52:47,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:47,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 14:52:47,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:47,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 14:52:47,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:47,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 14:52:47,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:47,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-17 14:52:47,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:47,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-17 14:52:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:47,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-17 14:52:47,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:47,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-17 14:52:47,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:47,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-17 14:52:47,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:47,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-17 14:52:47,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:47,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-17 14:52:47,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:47,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-17 14:52:47,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:47,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-17 14:52:47,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:47,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-17 14:52:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:47,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-17 14:52:47,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:47,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-17 14:52:47,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:47,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-17 14:52:47,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:47,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:52:47,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:47,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-17 14:52:47,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:47,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:52:47,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:47,271 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-17 14:52:47,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:52:47,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177126465] [2021-12-17 14:52:47,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177126465] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 14:52:47,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475507617] [2021-12-17 14:52:47,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:52:47,272 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:52:47,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 14:52:47,273 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 14:52:47,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-17 14:52:47,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:47,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 1428 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 14:52:47,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 14:52:47,731 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-12-17 14:52:47,731 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 14:52:47,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475507617] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:52:47,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 14:52:47,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-17 14:52:47,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65124592] [2021-12-17 14:52:47,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:52:47,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 14:52:47,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:52:47,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 14:52:47,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 14:52:47,734 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) [2021-12-17 14:52:47,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:52:47,765 INFO L93 Difference]: Finished difference Result 969 states and 1476 transitions. [2021-12-17 14:52:47,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 14:52:47,766 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 [2021-12-17 14:52:47,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:52:47,769 INFO L225 Difference]: With dead ends: 969 [2021-12-17 14:52:47,769 INFO L226 Difference]: Without dead ends: 538 [2021-12-17 14:52:47,771 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 [2021-12-17 14:52:47,771 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 [2021-12-17 14:52:47,772 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] [2021-12-17 14:52:47,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-12-17 14:52:47,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 530. [2021-12-17 14:52:47,790 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) [2021-12-17 14:52:47,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 813 transitions. [2021-12-17 14:52:47,793 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 813 transitions. Word has length 177 [2021-12-17 14:52:47,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:52:47,794 INFO L470 AbstractCegarLoop]: Abstraction has 530 states and 813 transitions. [2021-12-17 14:52:47,794 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) [2021-12-17 14:52:47,794 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 813 transitions. [2021-12-17 14:52:47,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-12-17 14:52:47,796 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:52:47,797 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] [2021-12-17 14:52:47,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-17 14:52:48,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:52:48,015 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:52:48,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:52:48,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1741878275, now seen corresponding path program 1 times [2021-12-17 14:52:48,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:52:48,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851230886] [2021-12-17 14:52:48,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:52:48,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:52:48,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:48,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:52:48,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:48,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:52:48,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:48,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:52:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:48,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 14:52:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:48,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 14:52:48,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:48,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 14:52:48,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:48,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 14:52:48,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:48,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-17 14:52:48,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:48,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-17 14:52:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:48,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-17 14:52:48,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:48,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-17 14:52:48,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:48,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-17 14:52:48,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:48,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-17 14:52:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:48,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-17 14:52:48,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:48,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-17 14:52:48,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:48,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-17 14:52:48,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:48,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:52:48,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:48,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-17 14:52:48,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:48,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:52:48,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:48,151 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-17 14:52:48,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:52:48,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851230886] [2021-12-17 14:52:48,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851230886] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 14:52:48,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987301559] [2021-12-17 14:52:48,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:52:48,154 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:52:48,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 14:52:48,155 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 14:52:48,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-17 14:52:48,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:48,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 1354 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-17 14:52:48,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 14:52:48,671 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-12-17 14:52:48,671 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 14:52:48,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987301559] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:52:48,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 14:52:48,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-17 14:52:48,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889419232] [2021-12-17 14:52:48,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:52:48,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 14:52:48,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:52:48,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 14:52:48,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 14:52:48,675 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) [2021-12-17 14:52:48,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:52:48,739 INFO L93 Difference]: Finished difference Result 1051 states and 1616 transitions. [2021-12-17 14:52:48,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 14:52:48,740 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 [2021-12-17 14:52:48,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:52:48,743 INFO L225 Difference]: With dead ends: 1051 [2021-12-17 14:52:48,743 INFO L226 Difference]: Without dead ends: 532 [2021-12-17 14:52:48,745 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 [2021-12-17 14:52:48,747 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 [2021-12-17 14:52:48,751 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] [2021-12-17 14:52:48,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2021-12-17 14:52:48,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2021-12-17 14:52:48,779 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) [2021-12-17 14:52:48,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 816 transitions. [2021-12-17 14:52:48,782 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 816 transitions. Word has length 159 [2021-12-17 14:52:48,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:52:48,784 INFO L470 AbstractCegarLoop]: Abstraction has 532 states and 816 transitions. [2021-12-17 14:52:48,784 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) [2021-12-17 14:52:48,784 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 816 transitions. [2021-12-17 14:52:48,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-12-17 14:52:48,787 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:52:48,787 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] [2021-12-17 14:52:48,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-17 14:52:49,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:52:49,006 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:52:49,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:52:49,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1528256094, now seen corresponding path program 1 times [2021-12-17 14:52:49,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:52:49,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311968969] [2021-12-17 14:52:49,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:52:49,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:52:49,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:49,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:52:49,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:49,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:52:49,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:49,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:52:49,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:49,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:52:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:49,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-17 14:52:49,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:49,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-17 14:52:49,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:49,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-17 14:52:49,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:49,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-17 14:52:49,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:49,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-17 14:52:49,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:49,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-17 14:52:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:49,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-17 14:52:49,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:49,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-17 14:52:49,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:49,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-17 14:52:49,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:49,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-17 14:52:49,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:49,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-17 14:52:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:49,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-17 14:52:49,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:49,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-17 14:52:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:49,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-17 14:52:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:49,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-17 14:52:49,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:49,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:52:49,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:49,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-17 14:52:49,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:49,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:52:49,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:49,186 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-17 14:52:49,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:52:49,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311968969] [2021-12-17 14:52:49,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311968969] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 14:52:49,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006880554] [2021-12-17 14:52:49,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:52:49,186 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:52:49,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 14:52:49,188 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 14:52:49,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-17 14:52:49,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:49,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 1436 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-17 14:52:49,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 14:52:49,709 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-12-17 14:52:49,709 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 14:52:49,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006880554] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:52:49,709 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 14:52:49,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-17 14:52:49,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705318201] [2021-12-17 14:52:49,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:52:49,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 14:52:49,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:52:49,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 14:52:49,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-12-17 14:52:49,715 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) [2021-12-17 14:52:49,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:52:49,790 INFO L93 Difference]: Finished difference Result 1053 states and 1621 transitions. [2021-12-17 14:52:49,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 14:52:49,791 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 [2021-12-17 14:52:49,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:52:49,794 INFO L225 Difference]: With dead ends: 1053 [2021-12-17 14:52:49,795 INFO L226 Difference]: Without dead ends: 534 [2021-12-17 14:52:49,796 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 [2021-12-17 14:52:49,797 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 [2021-12-17 14:52:49,797 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] [2021-12-17 14:52:49,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2021-12-17 14:52:49,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2021-12-17 14:52:49,814 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) [2021-12-17 14:52:49,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 822 transitions. [2021-12-17 14:52:49,817 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 822 transitions. Word has length 179 [2021-12-17 14:52:49,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:52:49,818 INFO L470 AbstractCegarLoop]: Abstraction has 534 states and 822 transitions. [2021-12-17 14:52:49,818 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) [2021-12-17 14:52:49,818 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 822 transitions. [2021-12-17 14:52:49,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-12-17 14:52:49,821 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:52:49,822 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] [2021-12-17 14:52:49,858 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-17 14:52:50,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:52:50,036 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:52:50,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:52:50,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1369621267, now seen corresponding path program 1 times [2021-12-17 14:52:50,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:52:50,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847657968] [2021-12-17 14:52:50,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:52:50,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:52:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:50,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:52:50,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:50,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:52:50,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:50,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:52:50,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:50,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:52:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:50,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:52:50,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:50,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 14:52:50,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:50,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-17 14:52:50,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:50,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-17 14:52:50,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:50,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-17 14:52:50,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:50,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-17 14:52:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:50,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-17 14:52:50,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:50,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-17 14:52:50,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:50,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-17 14:52:50,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:50,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-17 14:52:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:50,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-17 14:52:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:50,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-17 14:52:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:50,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-17 14:52:50,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:50,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-17 14:52:50,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:50,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-17 14:52:50,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:50,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:52:50,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:50,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-17 14:52:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:50,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:52:50,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:50,184 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-17 14:52:50,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:52:50,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847657968] [2021-12-17 14:52:50,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847657968] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:52:50,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:52:50,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 14:52:50,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160069403] [2021-12-17 14:52:50,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:52:50,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 14:52:50,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:52:50,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 14:52:50,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 14:52:50,187 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) [2021-12-17 14:52:52,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:52:52,110 INFO L93 Difference]: Finished difference Result 1275 states and 1989 transitions. [2021-12-17 14:52:52,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-17 14:52:52,111 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 [2021-12-17 14:52:52,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:52:52,115 INFO L225 Difference]: With dead ends: 1275 [2021-12-17 14:52:52,115 INFO L226 Difference]: Without dead ends: 764 [2021-12-17 14:52:52,117 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 [2021-12-17 14:52:52,117 INFO L933 BasicCegarLoop]: 801 mSDtfsCounter, 1800 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 2545 mSolverCounterSat, 759 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1821 SdHoareTripleChecker+Valid, 2187 SdHoareTripleChecker+Invalid, 3304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 759 IncrementalHoareTripleChecker+Valid, 2545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 14:52:52,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1821 Valid, 2187 Invalid, 3304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [759 Valid, 2545 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 14:52:52,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2021-12-17 14:52:52,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 534. [2021-12-17 14:52:52,168 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) [2021-12-17 14:52:52,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 821 transitions. [2021-12-17 14:52:52,171 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 821 transitions. Word has length 180 [2021-12-17 14:52:52,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:52:52,171 INFO L470 AbstractCegarLoop]: Abstraction has 534 states and 821 transitions. [2021-12-17 14:52:52,171 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) [2021-12-17 14:52:52,171 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 821 transitions. [2021-12-17 14:52:52,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-12-17 14:52:52,174 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:52:52,174 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] [2021-12-17 14:52:52,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 14:52:52,174 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:52:52,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:52:52,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1722056232, now seen corresponding path program 1 times [2021-12-17 14:52:52,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:52:52,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625858911] [2021-12-17 14:52:52,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:52:52,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:52:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:52,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:52:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:52,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:52:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:52,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:52:52,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:52,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:52:52,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:52,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:52:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:52,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-17 14:52:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:52,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-17 14:52:52,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:52,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-17 14:52:52,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:52,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 14:52:52,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:52,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-17 14:52:52,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:52,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-17 14:52:52,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:52,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-17 14:52:52,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:52,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-17 14:52:52,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:52,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-17 14:52:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:52,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-17 14:52:52,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:52,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-17 14:52:52,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:52,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:52:52,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:52,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-17 14:52:52,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:52,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:52:52,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:52,294 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-17 14:52:52,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:52:52,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625858911] [2021-12-17 14:52:52,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625858911] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:52:52,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:52:52,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 14:52:52,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169826165] [2021-12-17 14:52:52,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:52:52,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 14:52:52,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:52:52,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 14:52:52,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 14:52:52,297 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) [2021-12-17 14:52:54,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:52:54,422 INFO L93 Difference]: Finished difference Result 1277 states and 1992 transitions. [2021-12-17 14:52:54,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-17 14:52:54,423 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 [2021-12-17 14:52:54,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:52:54,427 INFO L225 Difference]: With dead ends: 1277 [2021-12-17 14:52:54,427 INFO L226 Difference]: Without dead ends: 766 [2021-12-17 14:52:54,430 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 [2021-12-17 14:52:54,431 INFO L933 BasicCegarLoop]: 793 mSDtfsCounter, 1823 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 2522 mSolverCounterSat, 759 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1843 SdHoareTripleChecker+Valid, 2186 SdHoareTripleChecker+Invalid, 3281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 759 IncrementalHoareTripleChecker+Valid, 2522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-17 14:52:54,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1843 Valid, 2186 Invalid, 3281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [759 Valid, 2522 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-17 14:52:54,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2021-12-17 14:52:54,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 536. [2021-12-17 14:52:54,452 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) [2021-12-17 14:52:54,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 824 transitions. [2021-12-17 14:52:54,454 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 824 transitions. Word has length 162 [2021-12-17 14:52:54,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:52:54,456 INFO L470 AbstractCegarLoop]: Abstraction has 536 states and 824 transitions. [2021-12-17 14:52:54,456 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) [2021-12-17 14:52:54,456 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 824 transitions. [2021-12-17 14:52:54,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-12-17 14:52:54,458 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:52:54,458 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] [2021-12-17 14:52:54,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 14:52:54,459 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:52:54,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:52:54,460 INFO L85 PathProgramCache]: Analyzing trace with hash -604041599, now seen corresponding path program 1 times [2021-12-17 14:52:54,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:52:54,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881669732] [2021-12-17 14:52:54,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:52:54,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:52:54,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:54,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:52:54,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:54,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:52:54,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:54,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:52:54,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:54,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:52:54,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:54,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:52:54,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:54,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:52:54,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:54,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-17 14:52:54,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:54,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 14:52:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:54,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-17 14:52:54,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:54,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-17 14:52:54,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:54,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-17 14:52:54,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:54,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-17 14:52:54,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:54,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-17 14:52:54,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:54,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-17 14:52:54,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:54,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-17 14:52:54,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:54,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-17 14:52:54,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:54,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:52:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:54,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-17 14:52:54,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:54,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:52:54,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:54,654 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-12-17 14:52:54,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:52:54,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881669732] [2021-12-17 14:52:54,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881669732] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:52:54,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:52:54,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 14:52:54,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299578191] [2021-12-17 14:52:54,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:52:54,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 14:52:54,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:52:54,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 14:52:54,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-17 14:52:54,657 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) [2021-12-17 14:52:57,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:52:57,418 INFO L93 Difference]: Finished difference Result 1275 states and 1987 transitions. [2021-12-17 14:52:57,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 14:52:57,419 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 [2021-12-17 14:52:57,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:52:57,434 INFO L225 Difference]: With dead ends: 1275 [2021-12-17 14:52:57,435 INFO L226 Difference]: Without dead ends: 766 [2021-12-17 14:52:57,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-17 14:52:57,437 INFO L933 BasicCegarLoop]: 746 mSDtfsCounter, 2050 mSDsluCounter, 2062 mSDsCounter, 0 mSdLazyCounter, 4322 mSolverCounterSat, 835 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2050 SdHoareTripleChecker+Valid, 2808 SdHoareTripleChecker+Invalid, 5157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 835 IncrementalHoareTripleChecker+Valid, 4322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-17 14:52:57,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2050 Valid, 2808 Invalid, 5157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [835 Valid, 4322 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-17 14:52:57,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2021-12-17 14:52:57,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 536. [2021-12-17 14:52:57,468 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) [2021-12-17 14:52:57,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 823 transitions. [2021-12-17 14:52:57,471 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 823 transitions. Word has length 163 [2021-12-17 14:52:57,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:52:57,471 INFO L470 AbstractCegarLoop]: Abstraction has 536 states and 823 transitions. [2021-12-17 14:52:57,472 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) [2021-12-17 14:52:57,472 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 823 transitions. [2021-12-17 14:52:57,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-12-17 14:52:57,475 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:52:57,475 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] [2021-12-17 14:52:57,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 14:52:57,475 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:52:57,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:52:57,476 INFO L85 PathProgramCache]: Analyzing trace with hash -2106985160, now seen corresponding path program 2 times [2021-12-17 14:52:57,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:52:57,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914415266] [2021-12-17 14:52:57,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:52:57,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:52:57,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:57,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:52:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:57,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:52:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:57,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:52:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:57,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:52:57,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:57,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:52:57,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:57,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:52:57,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:57,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-17 14:52:57,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:57,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-17 14:52:57,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:57,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-17 14:52:57,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:57,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 14:52:57,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:57,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 14:52:57,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:57,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-17 14:52:57,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:57,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-17 14:52:57,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:57,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-17 14:52:57,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:57,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-17 14:52:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:57,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-17 14:52:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:57,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:52:57,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:57,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-17 14:52:57,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:57,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:52:57,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:52:57,622 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-12-17 14:52:57,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:52:57,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914415266] [2021-12-17 14:52:57,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914415266] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:52:57,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:52:57,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 14:52:57,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066585651] [2021-12-17 14:52:57,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:52:57,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 14:52:57,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:52:57,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 14:52:57,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-17 14:52:57,625 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) [2021-12-17 14:53:00,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:53:00,290 INFO L93 Difference]: Finished difference Result 1277 states and 1993 transitions. [2021-12-17 14:53:00,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 14:53:00,291 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 [2021-12-17 14:53:00,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:53:00,296 INFO L225 Difference]: With dead ends: 1277 [2021-12-17 14:53:00,296 INFO L226 Difference]: Without dead ends: 768 [2021-12-17 14:53:00,299 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 [2021-12-17 14:53:00,301 INFO L933 BasicCegarLoop]: 781 mSDtfsCounter, 1914 mSDsluCounter, 2086 mSDsCounter, 0 mSdLazyCounter, 4588 mSolverCounterSat, 789 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1914 SdHoareTripleChecker+Valid, 2867 SdHoareTripleChecker+Invalid, 5377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 789 IncrementalHoareTripleChecker+Valid, 4588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-17 14:53:00,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1914 Valid, 2867 Invalid, 5377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [789 Valid, 4588 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-17 14:53:00,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2021-12-17 14:53:00,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 538. [2021-12-17 14:53:00,332 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) [2021-12-17 14:53:00,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 829 transitions. [2021-12-17 14:53:00,335 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 829 transitions. Word has length 164 [2021-12-17 14:53:00,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:53:00,336 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 829 transitions. [2021-12-17 14:53:00,336 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) [2021-12-17 14:53:00,337 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 829 transitions. [2021-12-17 14:53:00,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-12-17 14:53:00,339 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:53:00,339 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] [2021-12-17 14:53:00,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-17 14:53:00,340 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:53:00,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:53:00,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1914006118, now seen corresponding path program 1 times [2021-12-17 14:53:00,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:53:00,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905755241] [2021-12-17 14:53:00,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:53:00,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:53:00,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:00,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:53:00,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:00,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:53:00,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:00,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:53:00,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:00,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:53:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:00,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:53:00,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:00,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:53:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:00,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-17 14:53:00,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:00,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-17 14:53:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:00,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-17 14:53:00,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:00,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-17 14:53:00,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:00,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-17 14:53:00,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:00,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-17 14:53:00,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:00,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-17 14:53:00,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:00,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-17 14:53:00,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:00,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-17 14:53:00,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:00,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-17 14:53:00,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:00,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:53:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:00,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-17 14:53:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:00,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:53:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:00,546 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-12-17 14:53:00,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:53:00,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905755241] [2021-12-17 14:53:00,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905755241] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 14:53:00,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828968238] [2021-12-17 14:53:00,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:53:00,547 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:53:00,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 14:53:00,549 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 14:53:00,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-17 14:53:00,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:00,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 1360 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 14:53:00,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 14:53:01,023 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-17 14:53:01,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 14:53:01,306 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-17 14:53:01,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828968238] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 14:53:01,307 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 14:53:01,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2021-12-17 14:53:01,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888520330] [2021-12-17 14:53:01,309 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 14:53:01,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-17 14:53:01,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:53:01,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-17 14:53:01,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-12-17 14:53:01,311 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) [2021-12-17 14:53:05,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:53:05,043 INFO L93 Difference]: Finished difference Result 2186 states and 3631 transitions. [2021-12-17 14:53:05,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-17 14:53:05,044 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 [2021-12-17 14:53:05,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:53:05,052 INFO L225 Difference]: With dead ends: 2186 [2021-12-17 14:53:05,052 INFO L226 Difference]: Without dead ends: 1679 [2021-12-17 14:53:05,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2021-12-17 14:53:05,055 INFO L933 BasicCegarLoop]: 925 mSDtfsCounter, 4635 mSDsluCounter, 3791 mSDsCounter, 0 mSdLazyCounter, 6560 mSolverCounterSat, 1863 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4637 SdHoareTripleChecker+Valid, 4716 SdHoareTripleChecker+Invalid, 8423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1863 IncrementalHoareTripleChecker+Valid, 6560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-12-17 14:53:05,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4637 Valid, 4716 Invalid, 8423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1863 Valid, 6560 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-12-17 14:53:05,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2021-12-17 14:53:05,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 981. [2021-12-17 14:53:05,102 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) [2021-12-17 14:53:05,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1603 transitions. [2021-12-17 14:53:05,106 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1603 transitions. Word has length 165 [2021-12-17 14:53:05,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:53:05,106 INFO L470 AbstractCegarLoop]: Abstraction has 981 states and 1603 transitions. [2021-12-17 14:53:05,106 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) [2021-12-17 14:53:05,107 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1603 transitions. [2021-12-17 14:53:05,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-17 14:53:05,112 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:53:05,112 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] [2021-12-17 14:53:05,133 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-17 14:53:05,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 14:53:05,334 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:53:05,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:53:05,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1267507049, now seen corresponding path program 1 times [2021-12-17 14:53:05,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:53:05,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083554482] [2021-12-17 14:53:05,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:53:05,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:53:05,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:05,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:53:05,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:05,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:53:05,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:05,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:53:05,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:05,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:53:05,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:05,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:53:05,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:05,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:53:05,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:05,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 14:53:05,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:05,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-17 14:53:05,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:05,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-17 14:53:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:05,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-17 14:53:05,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:05,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-17 14:53:05,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:05,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-17 14:53:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:05,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-17 14:53:05,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:05,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-17 14:53:05,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:05,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-17 14:53:05,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:05,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-17 14:53:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:05,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:53:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:05,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-17 14:53:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:05,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:53:05,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:05,446 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-17 14:53:05,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:53:05,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083554482] [2021-12-17 14:53:05,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083554482] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:53:05,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:53:05,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:53:05,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349956573] [2021-12-17 14:53:05,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:53:05,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:53:05,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:53:05,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:53:05,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:53:05,448 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) [2021-12-17 14:53:06,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:53:06,910 INFO L93 Difference]: Finished difference Result 2537 states and 4239 transitions. [2021-12-17 14:53:06,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:53:06,912 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 [2021-12-17 14:53:06,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:53:06,937 INFO L225 Difference]: With dead ends: 2537 [2021-12-17 14:53:06,937 INFO L226 Difference]: Without dead ends: 1634 [2021-12-17 14:53:06,941 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 [2021-12-17 14:53:06,942 INFO L933 BasicCegarLoop]: 802 mSDtfsCounter, 1850 mSDsluCounter, 975 mSDsCounter, 0 mSdLazyCounter, 1292 mSolverCounterSat, 850 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1869 SdHoareTripleChecker+Valid, 1777 SdHoareTripleChecker+Invalid, 2142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 850 IncrementalHoareTripleChecker+Valid, 1292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 14:53:06,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1869 Valid, 1777 Invalid, 2142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [850 Valid, 1292 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 14:53:06,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2021-12-17 14:53:07,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1396. [2021-12-17 14:53:07,068 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) [2021-12-17 14:53:07,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 2331 transitions. [2021-12-17 14:53:07,073 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 2331 transitions. Word has length 168 [2021-12-17 14:53:07,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:53:07,074 INFO L470 AbstractCegarLoop]: Abstraction has 1396 states and 2331 transitions. [2021-12-17 14:53:07,074 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) [2021-12-17 14:53:07,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 2331 transitions. [2021-12-17 14:53:07,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-12-17 14:53:07,082 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:53:07,082 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] [2021-12-17 14:53:07,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-17 14:53:07,082 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:53:07,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:53:07,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1970157718, now seen corresponding path program 1 times [2021-12-17 14:53:07,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:53:07,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751102312] [2021-12-17 14:53:07,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:53:07,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:53:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:07,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:53:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:07,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:53:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:07,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:53:07,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:07,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:53:07,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:07,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:53:07,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:07,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:53:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:07,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-17 14:53:07,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:07,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-17 14:53:07,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:07,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-17 14:53:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:07,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-17 14:53:07,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:07,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-17 14:53:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:07,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 14:53:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:07,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-17 14:53:07,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:07,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-17 14:53:07,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:07,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-17 14:53:07,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:07,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-17 14:53:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:07,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:53:07,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:07,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-17 14:53:07,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:07,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:53:07,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:07,192 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-17 14:53:07,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:53:07,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751102312] [2021-12-17 14:53:07,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751102312] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:53:07,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:53:07,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:53:07,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451868297] [2021-12-17 14:53:07,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:53:07,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:53:07,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:53:07,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:53:07,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:53:07,194 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) [2021-12-17 14:53:08,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:53:08,805 INFO L93 Difference]: Finished difference Result 3576 states and 6052 transitions. [2021-12-17 14:53:08,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:53:08,805 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 [2021-12-17 14:53:08,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:53:08,834 INFO L225 Difference]: With dead ends: 3576 [2021-12-17 14:53:08,834 INFO L226 Difference]: Without dead ends: 2311 [2021-12-17 14:53:08,840 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 [2021-12-17 14:53:08,841 INFO L933 BasicCegarLoop]: 811 mSDtfsCounter, 1804 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 1300 mSolverCounterSat, 807 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1823 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 2107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 807 IncrementalHoareTripleChecker+Valid, 1300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 14:53:08,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1823 Valid, 1779 Invalid, 2107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [807 Valid, 1300 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 14:53:08,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2311 states. [2021-12-17 14:53:08,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2311 to 2073. [2021-12-17 14:53:08,919 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) [2021-12-17 14:53:08,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 3491 transitions. [2021-12-17 14:53:08,925 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 3491 transitions. Word has length 169 [2021-12-17 14:53:08,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:53:08,925 INFO L470 AbstractCegarLoop]: Abstraction has 2073 states and 3491 transitions. [2021-12-17 14:53:08,925 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) [2021-12-17 14:53:08,925 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 3491 transitions. [2021-12-17 14:53:08,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-12-17 14:53:08,933 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:53:08,934 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] [2021-12-17 14:53:08,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-17 14:53:08,934 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:53:08,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:53:08,935 INFO L85 PathProgramCache]: Analyzing trace with hash -921327383, now seen corresponding path program 1 times [2021-12-17 14:53:08,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:53:08,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507113663] [2021-12-17 14:53:08,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:53:08,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:53:08,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:09,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:53:09,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:09,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:53:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:09,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:53:09,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:09,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:53:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:09,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:53:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:09,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:53:09,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:09,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-17 14:53:09,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:09,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-17 14:53:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:09,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-17 14:53:09,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:09,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-17 14:53:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:09,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-17 14:53:09,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:09,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-17 14:53:09,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:09,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-17 14:53:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:09,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-17 14:53:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:09,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-17 14:53:09,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:09,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-17 14:53:09,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:09,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:53:09,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:09,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-17 14:53:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:09,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:53:09,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:09,056 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-17 14:53:09,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:53:09,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507113663] [2021-12-17 14:53:09,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507113663] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:53:09,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:53:09,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:53:09,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634764545] [2021-12-17 14:53:09,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:53:09,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:53:09,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:53:09,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:53:09,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:53:09,058 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) [2021-12-17 14:53:10,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:53:10,534 INFO L93 Difference]: Finished difference Result 5161 states and 8831 transitions. [2021-12-17 14:53:10,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:53:10,575 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 [2021-12-17 14:53:10,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:53:10,589 INFO L225 Difference]: With dead ends: 5161 [2021-12-17 14:53:10,590 INFO L226 Difference]: Without dead ends: 3354 [2021-12-17 14:53:10,594 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 [2021-12-17 14:53:10,595 INFO L933 BasicCegarLoop]: 812 mSDtfsCounter, 1785 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 799 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1803 SdHoareTripleChecker+Valid, 1759 SdHoareTripleChecker+Invalid, 2110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 799 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 14:53:10,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1803 Valid, 1759 Invalid, 2110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [799 Valid, 1311 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 14:53:10,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3354 states. [2021-12-17 14:53:10,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3354 to 3116. [2021-12-17 14:53:10,703 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) [2021-12-17 14:53:10,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5289 transitions. [2021-12-17 14:53:10,710 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5289 transitions. Word has length 170 [2021-12-17 14:53:10,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:53:10,711 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5289 transitions. [2021-12-17 14:53:10,711 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) [2021-12-17 14:53:10,711 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5289 transitions. [2021-12-17 14:53:10,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-12-17 14:53:10,722 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:53:10,722 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] [2021-12-17 14:53:10,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-17 14:53:10,723 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:53:10,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:53:10,723 INFO L85 PathProgramCache]: Analyzing trace with hash 696120073, now seen corresponding path program 1 times [2021-12-17 14:53:10,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:53:10,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481807182] [2021-12-17 14:53:10,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:53:10,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:53:10,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:10,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:53:10,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:10,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:53:10,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:10,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:53:10,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:10,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:53:10,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:10,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:53:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:10,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:53:10,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:10,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-17 14:53:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:10,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 14:53:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:10,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-17 14:53:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:10,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-17 14:53:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:10,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-17 14:53:10,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:10,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-17 14:53:10,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:10,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-17 14:53:10,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:10,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-17 14:53:10,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:10,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-17 14:53:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:10,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-17 14:53:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:10,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:53:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:10,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-17 14:53:10,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:10,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:53:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:10,841 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-17 14:53:10,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:53:10,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481807182] [2021-12-17 14:53:10,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481807182] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:53:10,841 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:53:10,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:53:10,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170512202] [2021-12-17 14:53:10,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:53:10,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:53:10,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:53:10,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:53:10,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:53:10,843 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) [2021-12-17 14:53:11,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:53:11,990 INFO L93 Difference]: Finished difference Result 7675 states and 13246 transitions. [2021-12-17 14:53:11,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:53:11,994 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 [2021-12-17 14:53:12,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:53:12,033 INFO L225 Difference]: With dead ends: 7675 [2021-12-17 14:53:12,033 INFO L226 Difference]: Without dead ends: 5044 [2021-12-17 14:53:12,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 14:53:12,041 INFO L933 BasicCegarLoop]: 821 mSDtfsCounter, 1775 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 787 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1794 SdHoareTripleChecker+Valid, 1769 SdHoareTripleChecker+Invalid, 2121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 787 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-17 14:53:12,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1794 Valid, 1769 Invalid, 2121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [787 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-17 14:53:12,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5044 states. [2021-12-17 14:53:12,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5044 to 4806. [2021-12-17 14:53:12,291 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) [2021-12-17 14:53:12,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4806 states to 4806 states and 8197 transitions. [2021-12-17 14:53:12,305 INFO L78 Accepts]: Start accepts. Automaton has 4806 states and 8197 transitions. Word has length 171 [2021-12-17 14:53:12,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:53:12,306 INFO L470 AbstractCegarLoop]: Abstraction has 4806 states and 8197 transitions. [2021-12-17 14:53:12,306 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) [2021-12-17 14:53:12,306 INFO L276 IsEmpty]: Start isEmpty. Operand 4806 states and 8197 transitions. [2021-12-17 14:53:12,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-12-17 14:53:12,326 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:53:12,326 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] [2021-12-17 14:53:12,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-17 14:53:12,327 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:53:12,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:53:12,327 INFO L85 PathProgramCache]: Analyzing trace with hash -253267998, now seen corresponding path program 1 times [2021-12-17 14:53:12,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:53:12,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557883406] [2021-12-17 14:53:12,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:53:12,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:53:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:12,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:53:12,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:12,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:53:12,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:12,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:53:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:12,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:53:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:12,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:53:12,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:12,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:53:12,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:12,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-17 14:53:12,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:12,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-17 14:53:12,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:12,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 14:53:12,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:12,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-17 14:53:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:12,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-17 14:53:12,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:12,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-17 14:53:12,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:12,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-17 14:53:12,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:12,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-17 14:53:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:12,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-17 14:53:12,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:12,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-17 14:53:12,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:12,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-17 14:53:12,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:12,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-17 14:53:12,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:12,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-17 14:53:12,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:12,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:53:12,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:12,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-17 14:53:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:12,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:53:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:12,421 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-17 14:53:12,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:53:12,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557883406] [2021-12-17 14:53:12,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557883406] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:53:12,422 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:53:12,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:53:12,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88942147] [2021-12-17 14:53:12,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:53:12,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:53:12,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:53:12,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:53:12,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:53:12,423 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) [2021-12-17 14:53:14,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:53:14,291 INFO L93 Difference]: Finished difference Result 11876 states and 20623 transitions. [2021-12-17 14:53:14,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:53:14,291 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 [2021-12-17 14:53:14,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:53:14,366 INFO L225 Difference]: With dead ends: 11876 [2021-12-17 14:53:14,367 INFO L226 Difference]: Without dead ends: 7887 [2021-12-17 14:53:14,388 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 [2021-12-17 14:53:14,389 INFO L933 BasicCegarLoop]: 781 mSDtfsCounter, 1924 mSDsluCounter, 961 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 852 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1942 SdHoareTripleChecker+Valid, 1742 SdHoareTripleChecker+Invalid, 2104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 852 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 14:53:14,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1942 Valid, 1742 Invalid, 2104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [852 Valid, 1252 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 14:53:14,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7887 states. [2021-12-17 14:53:14,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7887 to 7649. [2021-12-17 14:53:14,766 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) [2021-12-17 14:53:14,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7649 states to 7649 states and 13086 transitions. [2021-12-17 14:53:14,788 INFO L78 Accepts]: Start accepts. Automaton has 7649 states and 13086 transitions. Word has length 191 [2021-12-17 14:53:14,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:53:14,789 INFO L470 AbstractCegarLoop]: Abstraction has 7649 states and 13086 transitions. [2021-12-17 14:53:14,789 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) [2021-12-17 14:53:14,789 INFO L276 IsEmpty]: Start isEmpty. Operand 7649 states and 13086 transitions. [2021-12-17 14:53:14,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-12-17 14:53:14,827 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:53:14,827 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] [2021-12-17 14:53:14,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-17 14:53:14,827 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:53:14,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:53:14,828 INFO L85 PathProgramCache]: Analyzing trace with hash 819222693, now seen corresponding path program 1 times [2021-12-17 14:53:14,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:53:14,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393598356] [2021-12-17 14:53:14,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:53:14,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:53:14,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:14,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:53:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:14,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:53:14,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:14,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:53:14,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:14,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:53:14,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:14,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:53:14,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:14,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:53:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:14,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-17 14:53:14,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:14,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-17 14:53:14,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:14,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-17 14:53:14,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:14,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 14:53:14,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:14,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-17 14:53:14,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:14,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-17 14:53:14,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:14,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-17 14:53:14,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:14,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-17 14:53:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:14,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-17 14:53:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:14,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-17 14:53:14,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:14,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:53:14,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:14,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-17 14:53:14,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:14,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:53:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:14,928 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-17 14:53:14,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:53:14,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393598356] [2021-12-17 14:53:14,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393598356] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:53:14,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:53:14,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:53:14,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004443763] [2021-12-17 14:53:14,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:53:14,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:53:14,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:53:14,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:53:14,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:53:14,930 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) [2021-12-17 14:53:16,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:53:16,436 INFO L93 Difference]: Finished difference Result 19491 states and 33899 transitions. [2021-12-17 14:53:16,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:53:16,437 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 [2021-12-17 14:53:16,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:53:16,473 INFO L225 Difference]: With dead ends: 19491 [2021-12-17 14:53:16,473 INFO L226 Difference]: Without dead ends: 13061 [2021-12-17 14:53:16,488 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 [2021-12-17 14:53:16,488 INFO L933 BasicCegarLoop]: 801 mSDtfsCounter, 1826 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 1294 mSolverCounterSat, 820 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1844 SdHoareTripleChecker+Valid, 1754 SdHoareTripleChecker+Invalid, 2114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 820 IncrementalHoareTripleChecker+Valid, 1294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-17 14:53:16,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1844 Valid, 1754 Invalid, 2114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [820 Valid, 1294 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-17 14:53:16,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13061 states. [2021-12-17 14:53:16,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13061 to 12823. [2021-12-17 14:53:16,973 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) [2021-12-17 14:53:17,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12823 states to 12823 states and 21971 transitions. [2021-12-17 14:53:17,072 INFO L78 Accepts]: Start accepts. Automaton has 12823 states and 21971 transitions. Word has length 173 [2021-12-17 14:53:17,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:53:17,072 INFO L470 AbstractCegarLoop]: Abstraction has 12823 states and 21971 transitions. [2021-12-17 14:53:17,072 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) [2021-12-17 14:53:17,072 INFO L276 IsEmpty]: Start isEmpty. Operand 12823 states and 21971 transitions. [2021-12-17 14:53:17,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-12-17 14:53:17,108 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:53:17,109 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] [2021-12-17 14:53:17,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-17 14:53:17,109 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:53:17,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:53:17,109 INFO L85 PathProgramCache]: Analyzing trace with hash -319875777, now seen corresponding path program 1 times [2021-12-17 14:53:17,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:53:17,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717384137] [2021-12-17 14:53:17,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:53:17,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:53:17,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:17,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:53:17,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:17,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:53:17,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:17,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:53:17,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:17,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:53:17,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:17,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:53:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:17,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:53:17,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:17,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-17 14:53:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:17,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-17 14:53:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:17,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-17 14:53:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:17,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-17 14:53:17,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:17,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-17 14:53:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:17,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-17 14:53:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:17,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-17 14:53:17,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:17,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-17 14:53:17,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:17,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-17 14:53:17,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:17,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-17 14:53:17,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:17,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:53:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:17,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-17 14:53:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:17,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:53:17,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:17,197 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-17 14:53:17,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:53:17,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717384137] [2021-12-17 14:53:17,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717384137] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:53:17,197 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:53:17,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:53:17,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40473500] [2021-12-17 14:53:17,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:53:17,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:53:17,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:53:17,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:53:17,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:53:17,200 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) [2021-12-17 14:53:19,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:53:19,103 INFO L93 Difference]: Finished difference Result 30974 states and 53599 transitions. [2021-12-17 14:53:19,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:53:19,104 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 [2021-12-17 14:53:19,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:53:19,189 INFO L225 Difference]: With dead ends: 30974 [2021-12-17 14:53:19,189 INFO L226 Difference]: Without dead ends: 20374 [2021-12-17 14:53:19,226 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 [2021-12-17 14:53:19,227 INFO L933 BasicCegarLoop]: 788 mSDtfsCounter, 1860 mSDsluCounter, 919 mSDsCounter, 0 mSdLazyCounter, 1286 mSolverCounterSat, 823 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1879 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 2109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 823 IncrementalHoareTripleChecker+Valid, 1286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-17 14:53:19,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1879 Valid, 1707 Invalid, 2109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [823 Valid, 1286 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-17 14:53:19,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20374 states. [2021-12-17 14:53:20,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20374 to 20136. [2021-12-17 14:53:20,211 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) [2021-12-17 14:53:20,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20136 states to 20136 states and 34167 transitions. [2021-12-17 14:53:20,285 INFO L78 Accepts]: Start accepts. Automaton has 20136 states and 34167 transitions. Word has length 174 [2021-12-17 14:53:20,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:53:20,286 INFO L470 AbstractCegarLoop]: Abstraction has 20136 states and 34167 transitions. [2021-12-17 14:53:20,286 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) [2021-12-17 14:53:20,286 INFO L276 IsEmpty]: Start isEmpty. Operand 20136 states and 34167 transitions. [2021-12-17 14:53:20,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-12-17 14:53:20,334 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:53:20,335 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] [2021-12-17 14:53:20,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-17 14:53:20,335 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:53:20,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:53:20,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1594675541, now seen corresponding path program 1 times [2021-12-17 14:53:20,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:53:20,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647695756] [2021-12-17 14:53:20,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:53:20,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:53:20,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:20,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:53:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:20,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:53:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:20,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:53:20,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:20,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:53:20,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:20,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:53:20,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:20,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:53:20,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:20,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-17 14:53:20,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:20,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-17 14:53:20,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:20,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-17 14:53:20,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:20,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-17 14:53:20,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:20,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-17 14:53:20,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:20,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-17 14:53:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:20,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-17 14:53:20,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:20,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-17 14:53:20,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:20,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-17 14:53:20,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:20,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-17 14:53:20,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:20,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-17 14:53:20,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:20,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-17 14:53:20,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:20,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-17 14:53:20,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:20,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:53:20,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:20,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-17 14:53:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:20,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:53:20,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:20,449 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-17 14:53:20,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:53:20,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647695756] [2021-12-17 14:53:20,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647695756] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:53:20,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:53:20,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:53:20,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41378780] [2021-12-17 14:53:20,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:53:20,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:53:20,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:53:20,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:53:20,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:53:20,452 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) [2021-12-17 14:53:23,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:53:23,503 INFO L93 Difference]: Finished difference Result 53416 states and 92133 transitions. [2021-12-17 14:53:23,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:53:23,504 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 [2021-12-17 14:53:23,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:53:23,639 INFO L225 Difference]: With dead ends: 53416 [2021-12-17 14:53:23,640 INFO L226 Difference]: Without dead ends: 36180 [2021-12-17 14:53:23,688 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 [2021-12-17 14:53:23,689 INFO L933 BasicCegarLoop]: 842 mSDtfsCounter, 1769 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 1332 mSolverCounterSat, 826 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1787 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 2158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 826 IncrementalHoareTripleChecker+Valid, 1332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 14:53:23,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1787 Valid, 1796 Invalid, 2158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [826 Valid, 1332 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 14:53:23,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36180 states. [2021-12-17 14:53:25,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36180 to 35942. [2021-12-17 14:53:25,624 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) [2021-12-17 14:53:25,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35942 states to 35942 states and 60903 transitions. [2021-12-17 14:53:25,766 INFO L78 Accepts]: Start accepts. Automaton has 35942 states and 60903 transitions. Word has length 194 [2021-12-17 14:53:25,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:53:25,766 INFO L470 AbstractCegarLoop]: Abstraction has 35942 states and 60903 transitions. [2021-12-17 14:53:25,767 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) [2021-12-17 14:53:25,767 INFO L276 IsEmpty]: Start isEmpty. Operand 35942 states and 60903 transitions. [2021-12-17 14:53:25,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-12-17 14:53:25,842 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:53:25,844 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] [2021-12-17 14:53:25,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-17 14:53:25,844 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:53:25,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:53:25,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1836023685, now seen corresponding path program 1 times [2021-12-17 14:53:25,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:53:25,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369884834] [2021-12-17 14:53:25,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:53:25,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:53:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:25,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:53:25,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:25,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:53:25,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:25,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:53:25,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:25,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:53:25,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:25,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:53:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:25,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:53:25,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:25,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 14:53:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:25,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-17 14:53:25,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:25,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-17 14:53:25,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:25,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-17 14:53:25,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:25,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-17 14:53:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:25,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-17 14:53:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:25,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-17 14:53:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:25,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-17 14:53:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:25,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-17 14:53:25,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:25,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-17 14:53:25,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:25,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:53:25,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:25,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-17 14:53:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:25,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:53:25,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:25,953 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-17 14:53:25,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:53:25,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369884834] [2021-12-17 14:53:25,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369884834] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:53:25,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:53:25,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:53:25,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918046708] [2021-12-17 14:53:25,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:53:25,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:53:25,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:53:25,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:53:25,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:53:25,956 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) [2021-12-17 14:53:30,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:53:30,546 INFO L93 Difference]: Finished difference Result 98263 states and 168692 transitions. [2021-12-17 14:53:30,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:53:30,547 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 [2021-12-17 14:53:30,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:53:30,915 INFO L225 Difference]: With dead ends: 98263 [2021-12-17 14:53:30,915 INFO L226 Difference]: Without dead ends: 66177 [2021-12-17 14:53:30,990 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 [2021-12-17 14:53:30,991 INFO L933 BasicCegarLoop]: 791 mSDtfsCounter, 1842 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 832 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1861 SdHoareTripleChecker+Valid, 1735 SdHoareTripleChecker+Invalid, 2136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 832 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 14:53:30,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1861 Valid, 1735 Invalid, 2136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [832 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 14:53:31,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66177 states. [2021-12-17 14:53:34,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66177 to 65939. [2021-12-17 14:53:34,442 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) [2021-12-17 14:53:34,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65939 states to 65939 states and 111474 transitions. [2021-12-17 14:53:34,664 INFO L78 Accepts]: Start accepts. Automaton has 65939 states and 111474 transitions. Word has length 176 [2021-12-17 14:53:34,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:53:34,665 INFO L470 AbstractCegarLoop]: Abstraction has 65939 states and 111474 transitions. [2021-12-17 14:53:34,665 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) [2021-12-17 14:53:34,665 INFO L276 IsEmpty]: Start isEmpty. Operand 65939 states and 111474 transitions. [2021-12-17 14:53:34,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-17 14:53:34,775 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:53:34,776 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] [2021-12-17 14:53:34,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-17 14:53:34,776 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:53:34,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:53:34,777 INFO L85 PathProgramCache]: Analyzing trace with hash 88813796, now seen corresponding path program 1 times [2021-12-17 14:53:34,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:53:34,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433386672] [2021-12-17 14:53:34,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:53:34,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:53:34,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:34,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:53:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:34,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:53:34,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:34,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:53:34,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:34,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:53:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:34,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:53:34,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:34,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:53:34,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:34,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-17 14:53:34,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:34,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-17 14:53:34,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:34,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-17 14:53:34,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:34,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-17 14:53:34,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:34,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-17 14:53:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:34,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-17 14:53:34,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:34,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-17 14:53:34,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:34,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-17 14:53:34,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:34,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-17 14:53:34,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:34,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-17 14:53:34,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:34,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:53:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:34,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-17 14:53:34,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:34,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:53:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:34,914 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-17 14:53:34,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:53:34,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433386672] [2021-12-17 14:53:34,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433386672] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:53:34,915 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:53:34,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 14:53:34,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387900287] [2021-12-17 14:53:34,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:53:34,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 14:53:34,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:53:34,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 14:53:34,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 14:53:34,916 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) [2021-12-17 14:53:40,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 14:53:40,684 INFO L93 Difference]: Finished difference Result 123924 states and 213125 transitions. [2021-12-17 14:53:40,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 14:53:40,685 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 [2021-12-17 14:53:40,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 14:53:41,241 INFO L225 Difference]: With dead ends: 123924 [2021-12-17 14:53:41,241 INFO L226 Difference]: Without dead ends: 123665 [2021-12-17 14:53:41,306 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 [2021-12-17 14:53:41,307 INFO L933 BasicCegarLoop]: 818 mSDtfsCounter, 1740 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 806 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1759 SdHoareTripleChecker+Valid, 1761 SdHoareTripleChecker+Invalid, 2145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 806 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 14:53:41,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1759 Valid, 1761 Invalid, 2145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [806 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 14:53:41,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123665 states. [2021-12-17 14:53:47,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123665 to 123427. [2021-12-17 14:53:47,533 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) [2021-12-17 14:53:48,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123427 states to 123427 states and 208008 transitions. [2021-12-17 14:53:48,015 INFO L78 Accepts]: Start accepts. Automaton has 123427 states and 208008 transitions. Word has length 177 [2021-12-17 14:53:48,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 14:53:48,016 INFO L470 AbstractCegarLoop]: Abstraction has 123427 states and 208008 transitions. [2021-12-17 14:53:48,017 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) [2021-12-17 14:53:48,017 INFO L276 IsEmpty]: Start isEmpty. Operand 123427 states and 208008 transitions. [2021-12-17 14:53:48,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-12-17 14:53:48,143 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 14:53:48,143 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] [2021-12-17 14:53:48,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-17 14:53:48,144 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 14:53:48,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 14:53:48,145 INFO L85 PathProgramCache]: Analyzing trace with hash -59218423, now seen corresponding path program 1 times [2021-12-17 14:53:48,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 14:53:48,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759840793] [2021-12-17 14:53:48,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 14:53:48,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 14:53:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:48,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 14:53:48,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:48,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 14:53:48,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:48,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 14:53:48,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:48,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 14:53:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:48,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 14:53:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:48,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 14:53:48,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:48,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-17 14:53:48,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:48,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-17 14:53:48,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:48,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-17 14:53:48,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:48,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-17 14:53:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:48,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-17 14:53:48,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:48,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-17 14:53:48,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:48,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-17 14:53:48,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:48,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-17 14:53:48,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:48,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-17 14:53:48,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:48,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-17 14:53:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:48,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-17 14:53:48,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:48,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-17 14:53:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:48,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-17 14:53:48,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:48,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:53:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:48,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-17 14:53:48,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:48,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 14:53:48,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 14:53:48,379 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-17 14:53:48,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 14:53:48,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759840793] [2021-12-17 14:53:48,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759840793] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 14:53:48,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 14:53:48,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-17 14:53:48,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896723281] [2021-12-17 14:53:48,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 14:53:48,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-17 14:53:48,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 14:53:48,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-17 14:53:48,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 14:53:48,381 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)