./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec11_product26.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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_product26.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 f29a19c3efa542dcf2ceb090606fb32840c0b6e985b77630bcd852a7818d8a39 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 17:07:30,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 17:07:30,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 17:07:30,664 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 17:07:30,664 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 17:07:30,665 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 17:07:30,667 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 17:07:30,668 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 17:07:30,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 17:07:30,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 17:07:30,671 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 17:07:30,672 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 17:07:30,673 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 17:07:30,674 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 17:07:30,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 17:07:30,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 17:07:30,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 17:07:30,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 17:07:30,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 17:07:30,683 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 17:07:30,688 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 17:07:30,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 17:07:30,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 17:07:30,695 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 17:07:30,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 17:07:30,701 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 17:07:30,702 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 17:07:30,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 17:07:30,704 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 17:07:30,704 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 17:07:30,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 17:07:30,706 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 17:07:30,707 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 17:07:30,708 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 17:07:30,709 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 17:07:30,711 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 17:07:30,712 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 17:07:30,713 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 17:07:30,713 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 17:07:30,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 17:07:30,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 17:07:30,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 17:07:30,718 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 17:07:30,738 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 17:07:30,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 17:07:30,739 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 17:07:30,739 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 17:07:30,740 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 17:07:30,740 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 17:07:30,741 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 17:07:30,741 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 17:07:30,742 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 17:07:30,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 17:07:30,743 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 17:07:30,743 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 17:07:30,743 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 17:07:30,743 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 17:07:30,743 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 17:07:30,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 17:07:30,744 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 17:07:30,744 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 17:07:30,744 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 17:07:30,744 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 17:07:30,744 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 17:07:30,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 17:07:30,745 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 17:07:30,745 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 17:07:30,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:07:30,746 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 17:07:30,746 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 17:07:30,746 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 17:07:30,746 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 17:07:30,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 17:07:30,747 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 17:07:30,747 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 17:07:30,747 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 17:07:30,747 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f29a19c3efa542dcf2ceb090606fb32840c0b6e985b77630bcd852a7818d8a39 [2022-07-19 17:07:31,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 17:07:31,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 17:07:31,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 17:07:31,075 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 17:07:31,076 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 17:07:31,077 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec11_product26.cil.c [2022-07-19 17:07:31,139 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/830812477/edd2517da80b49829978a9ea72eff667/FLAGb51856d91 [2022-07-19 17:07:31,685 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 17:07:31,685 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec11_product26.cil.c [2022-07-19 17:07:31,703 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/830812477/edd2517da80b49829978a9ea72eff667/FLAGb51856d91 [2022-07-19 17:07:32,126 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/830812477/edd2517da80b49829978a9ea72eff667 [2022-07-19 17:07:32,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 17:07:32,131 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 17:07:32,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 17:07:32,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 17:07:32,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 17:07:32,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:07:32" (1/1) ... [2022-07-19 17:07:32,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@faba64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:07:32, skipping insertion in model container [2022-07-19 17:07:32,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:07:32" (1/1) ... [2022-07-19 17:07:32,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 17:07:32,215 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 17:07:32,755 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_product26.cil.c[63627,63640] [2022-07-19 17:07:32,764 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:07:32,778 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 17:07:32,903 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_product26.cil.c[63627,63640] [2022-07-19 17:07:32,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:07:32,940 INFO L208 MainTranslator]: Completed translation [2022-07-19 17:07:32,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:07:32 WrapperNode [2022-07-19 17:07:32,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 17:07:32,942 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 17:07:32,942 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 17:07:32,942 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 17:07:32,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:07:32" (1/1) ... [2022-07-19 17:07:32,983 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:07:32" (1/1) ... [2022-07-19 17:07:33,057 INFO L137 Inliner]: procedures = 131, calls = 224, calls flagged for inlining = 59, calls inlined = 56, statements flattened = 1089 [2022-07-19 17:07:33,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 17:07:33,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 17:07:33,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 17:07:33,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 17:07:33,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:07:32" (1/1) ... [2022-07-19 17:07:33,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:07:32" (1/1) ... [2022-07-19 17:07:33,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:07:32" (1/1) ... [2022-07-19 17:07:33,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:07:32" (1/1) ... [2022-07-19 17:07:33,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:07:32" (1/1) ... [2022-07-19 17:07:33,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:07:32" (1/1) ... [2022-07-19 17:07:33,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:07:32" (1/1) ... [2022-07-19 17:07:33,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 17:07:33,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 17:07:33,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 17:07:33,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 17:07:33,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:07:32" (1/1) ... [2022-07-19 17:07:33,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:07:33,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:07:33,205 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 17:07:33,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 17:07:33,241 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-07-19 17:07:33,242 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-07-19 17:07:33,242 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-07-19 17:07:33,242 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-07-19 17:07:33,243 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-07-19 17:07:33,243 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-07-19 17:07:33,243 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-07-19 17:07:33,243 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-07-19 17:07:33,243 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-07-19 17:07:33,243 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-07-19 17:07:33,243 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-07-19 17:07:33,244 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-07-19 17:07:33,244 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-07-19 17:07:33,244 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-07-19 17:07:33,244 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-07-19 17:07:33,244 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-07-19 17:07:33,244 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-07-19 17:07:33,244 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-07-19 17:07:33,245 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-07-19 17:07:33,245 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-07-19 17:07:33,245 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-07-19 17:07:33,245 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-07-19 17:07:33,245 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-07-19 17:07:33,246 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-07-19 17:07:33,246 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-07-19 17:07:33,246 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-07-19 17:07:33,246 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-07-19 17:07:33,246 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-07-19 17:07:33,246 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-07-19 17:07:33,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 17:07:33,247 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-07-19 17:07:33,247 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-07-19 17:07:33,247 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-07-19 17:07:33,247 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-07-19 17:07:33,248 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-07-19 17:07:33,248 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-07-19 17:07:33,248 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-07-19 17:07:33,248 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-07-19 17:07:33,248 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-07-19 17:07:33,248 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-07-19 17:07:33,248 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-07-19 17:07:33,249 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-07-19 17:07:33,249 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-07-19 17:07:33,249 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-07-19 17:07:33,249 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-07-19 17:07:33,249 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-07-19 17:07:33,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 17:07:33,250 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-07-19 17:07:33,250 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-07-19 17:07:33,250 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-07-19 17:07:33,250 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-07-19 17:07:33,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 17:07:33,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 17:07:33,509 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 17:07:33,511 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 17:07:34,081 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 17:07:34,091 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 17:07:34,091 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-19 17:07:34,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:07:34 BoogieIcfgContainer [2022-07-19 17:07:34,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 17:07:34,095 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 17:07:34,095 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 17:07:34,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 17:07:34,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 05:07:32" (1/3) ... [2022-07-19 17:07:34,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34389fc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:07:34, skipping insertion in model container [2022-07-19 17:07:34,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:07:32" (2/3) ... [2022-07-19 17:07:34,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34389fc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:07:34, skipping insertion in model container [2022-07-19 17:07:34,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:07:34" (3/3) ... [2022-07-19 17:07:34,101 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec11_product26.cil.c [2022-07-19 17:07:34,129 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 17:07:34,129 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 17:07:34,186 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 17:07:34,194 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6f45ec88, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1db4be5a [2022-07-19 17:07:34,195 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 17:07:34,205 INFO L276 IsEmpty]: Start isEmpty. Operand has 400 states, 312 states have (on average 1.560897435897436) internal successors, (487), 317 states have internal predecessors, (487), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-07-19 17:07:34,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-19 17:07:34,238 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:07:34,239 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:07:34,240 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:07:34,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:07:34,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1610295200, now seen corresponding path program 1 times [2022-07-19 17:07:34,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:07:34,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904413628] [2022-07-19 17:07:34,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:07:34,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:07:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:34,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:07:34,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:34,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:07:34,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:34,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:07:34,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:34,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 17:07:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:34,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:07:34,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:34,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 17:07:34,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:34,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-19 17:07:34,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:34,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 17:07:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:34,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-19 17:07:34,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:34,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 17:07:34,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:34,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-19 17:07:34,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:34,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-19 17:07:34,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:34,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-19 17:07:34,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:34,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:07:34,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:34,761 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-19 17:07:34,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:07:34,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904413628] [2022-07-19 17:07:34,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904413628] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:07:34,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846306539] [2022-07-19 17:07:34,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:07:34,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:07:34,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:07:34,765 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:07:34,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 17:07:35,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:35,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 1147 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-19 17:07:35,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:07:35,117 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-19 17:07:35,117 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:07:35,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846306539] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:07:35,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:07:35,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-07-19 17:07:35,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540713023] [2022-07-19 17:07:35,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:07:35,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 17:07:35,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:07:35,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 17:07:35,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 17:07:35,149 INFO L87 Difference]: Start difference. First operand has 400 states, 312 states have (on average 1.560897435897436) internal successors, (487), 317 states have internal predecessors, (487), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:07:35,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:07:35,236 INFO L93 Difference]: Finished difference Result 602 states and 904 transitions. [2022-07-19 17:07:35,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 17:07:35,239 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2022-07-19 17:07:35,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:07:35,259 INFO L225 Difference]: With dead ends: 602 [2022-07-19 17:07:35,259 INFO L226 Difference]: Without dead ends: 393 [2022-07-19 17:07:35,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 17:07:35,275 INFO L413 NwaCegarLoop]: 607 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, 607 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:07:35,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:07:35,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-07-19 17:07:35,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2022-07-19 17:07:35,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 306 states have (on average 1.5555555555555556) internal successors, (476), 310 states have internal predecessors, (476), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-07-19 17:07:35,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 599 transitions. [2022-07-19 17:07:35,376 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 599 transitions. Word has length 118 [2022-07-19 17:07:35,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:07:35,378 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 599 transitions. [2022-07-19 17:07:35,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:07:35,379 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 599 transitions. [2022-07-19 17:07:35,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-19 17:07:35,386 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:07:35,386 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:07:35,419 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-19 17:07:35,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-07-19 17:07:35,600 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:07:35,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:07:35,601 INFO L85 PathProgramCache]: Analyzing trace with hash 456341352, now seen corresponding path program 1 times [2022-07-19 17:07:35,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:07:35,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662191908] [2022-07-19 17:07:35,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:07:35,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:07:35,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:35,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:07:35,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:35,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:07:35,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:35,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:07:35,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:35,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 17:07:35,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:35,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:07:35,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:35,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 17:07:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:35,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 17:07:35,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:35,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-19 17:07:35,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:35,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 17:07:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:35,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 17:07:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:35,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 17:07:35,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:35,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-19 17:07:35,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:35,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:07:35,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:35,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-19 17:07:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:35,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-19 17:07:35,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:35,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-19 17:07:35,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:35,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:07:35,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:35,799 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-07-19 17:07:35,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:07:35,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662191908] [2022-07-19 17:07:35,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662191908] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:07:35,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963206855] [2022-07-19 17:07:35,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:07:35,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:07:35,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:07:35,815 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:07:35,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-19 17:07:36,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:36,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 1229 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 17:07:36,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:07:36,183 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-07-19 17:07:36,185 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:07:36,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963206855] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:07:36,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:07:36,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-19 17:07:36,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004620262] [2022-07-19 17:07:36,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:07:36,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:07:36,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:07:36,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:07:36,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-19 17:07:36,193 INFO L87 Difference]: Start difference. First operand 393 states and 599 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-19 17:07:36,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:07:36,259 INFO L93 Difference]: Finished difference Result 592 states and 882 transitions. [2022-07-19 17:07:36,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:07:36,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138 [2022-07-19 17:07:36,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:07:36,267 INFO L225 Difference]: With dead ends: 592 [2022-07-19 17:07:36,267 INFO L226 Difference]: Without dead ends: 396 [2022-07-19 17:07:36,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-19 17:07:36,270 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 1 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:07:36,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1192 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:07:36,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2022-07-19 17:07:36,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 395. [2022-07-19 17:07:36,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 308 states have (on average 1.551948051948052) internal successors, (478), 312 states have internal predecessors, (478), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-07-19 17:07:36,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 601 transitions. [2022-07-19 17:07:36,305 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 601 transitions. Word has length 138 [2022-07-19 17:07:36,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:07:36,308 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 601 transitions. [2022-07-19 17:07:36,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-19 17:07:36,308 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 601 transitions. [2022-07-19 17:07:36,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-19 17:07:36,311 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:07:36,312 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:07:36,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-19 17:07:36,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-07-19 17:07:36,536 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:07:36,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:07:36,536 INFO L85 PathProgramCache]: Analyzing trace with hash -2029021959, now seen corresponding path program 1 times [2022-07-19 17:07:36,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:07:36,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731186844] [2022-07-19 17:07:36,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:07:36,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:07:36,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:36,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:07:36,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:36,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:07:36,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:36,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:07:36,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:36,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 17:07:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:36,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:07:36,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:36,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 17:07:36,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:36,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-19 17:07:36,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:36,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 17:07:36,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:36,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-19 17:07:36,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:36,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-19 17:07:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:36,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-19 17:07:36,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:36,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-19 17:07:36,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:36,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-19 17:07:36,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:36,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-19 17:07:36,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:36,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-19 17:07:36,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:36,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-19 17:07:36,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:36,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:07:36,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:36,714 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-19 17:07:36,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:07:36,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731186844] [2022-07-19 17:07:36,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731186844] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:07:36,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063779420] [2022-07-19 17:07:36,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:07:36,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:07:36,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:07:36,717 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:07:36,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-19 17:07:36,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:37,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 1256 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 17:07:37,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:07:37,027 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-07-19 17:07:37,028 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:07:37,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063779420] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:07:37,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:07:37,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-19 17:07:37,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763982596] [2022-07-19 17:07:37,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:07:37,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:07:37,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:07:37,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:07:37,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-19 17:07:37,030 INFO L87 Difference]: Start difference. First operand 395 states and 601 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-19 17:07:37,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:07:37,057 INFO L93 Difference]: Finished difference Result 843 states and 1302 transitions. [2022-07-19 17:07:37,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:07:37,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147 [2022-07-19 17:07:37,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:07:37,061 INFO L225 Difference]: With dead ends: 843 [2022-07-19 17:07:37,061 INFO L226 Difference]: Without dead ends: 475 [2022-07-19 17:07:37,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-19 17:07:37,064 INFO L413 NwaCegarLoop]: 625 mSDtfsCounter, 142 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:07:37,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1179 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:07:37,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2022-07-19 17:07:37,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 467. [2022-07-19 17:07:37,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 366 states have (on average 1.5710382513661203) internal successors, (575), 370 states have internal predecessors, (575), 76 states have call successors, (76), 24 states have call predecessors, (76), 24 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2022-07-19 17:07:37,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 726 transitions. [2022-07-19 17:07:37,086 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 726 transitions. Word has length 147 [2022-07-19 17:07:37,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:07:37,087 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 726 transitions. [2022-07-19 17:07:37,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-19 17:07:37,087 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 726 transitions. [2022-07-19 17:07:37,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-19 17:07:37,090 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:07:37,091 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:07:37,113 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-19 17:07:37,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:07:37,304 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:07:37,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:07:37,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1882243221, now seen corresponding path program 1 times [2022-07-19 17:07:37,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:07:37,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653553449] [2022-07-19 17:07:37,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:07:37,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:07:37,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:37,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:07:37,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:37,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:07:37,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:37,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:07:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:37,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 17:07:37,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:37,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:07:37,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:37,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 17:07:37,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:37,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-19 17:07:37,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:37,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-19 17:07:37,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:37,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-19 17:07:37,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:37,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-19 17:07:37,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:37,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-19 17:07:37,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:37,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-19 17:07:37,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:37,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 17:07:37,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:37,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-19 17:07:37,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:37,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-19 17:07:37,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:37,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-19 17:07:37,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:37,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:07:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:37,469 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-19 17:07:37,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:07:37,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653553449] [2022-07-19 17:07:37,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653553449] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:07:37,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348865087] [2022-07-19 17:07:37,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:07:37,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:07:37,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:07:37,472 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:07:37,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-19 17:07:37,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:37,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 1263 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-19 17:07:37,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:07:37,822 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-19 17:07:37,822 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:07:37,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348865087] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:07:37,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:07:37,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-07-19 17:07:37,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015715482] [2022-07-19 17:07:37,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:07:37,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:07:37,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:07:37,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:07:37,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 17:07:37,824 INFO L87 Difference]: Start difference. First operand 467 states and 726 transitions. Second operand has 5 states, 4 states have (on average 23.75) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-19 17:07:37,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:07:37,884 INFO L93 Difference]: Finished difference Result 925 states and 1442 transitions. [2022-07-19 17:07:37,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:07:37,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.75) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 148 [2022-07-19 17:07:37,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:07:37,888 INFO L225 Difference]: With dead ends: 925 [2022-07-19 17:07:37,888 INFO L226 Difference]: Without dead ends: 469 [2022-07-19 17:07:37,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:07:37,890 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 160 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 2177 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:07:37,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 2177 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:07:37,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-07-19 17:07:37,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2022-07-19 17:07:37,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 367 states have (on average 1.569482288828338) internal successors, (576), 372 states have internal predecessors, (576), 76 states have call successors, (76), 24 states have call predecessors, (76), 25 states have return successors, (77), 74 states have call predecessors, (77), 75 states have call successors, (77) [2022-07-19 17:07:37,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 729 transitions. [2022-07-19 17:07:37,912 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 729 transitions. Word has length 148 [2022-07-19 17:07:37,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:07:37,913 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 729 transitions. [2022-07-19 17:07:37,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.75) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-19 17:07:37,913 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 729 transitions. [2022-07-19 17:07:37,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-07-19 17:07:37,916 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:07:37,916 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-07-19 17:07:37,949 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-07-19 17:07:38,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:07:38,139 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:07:38,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:07:38,140 INFO L85 PathProgramCache]: Analyzing trace with hash 766121849, now seen corresponding path program 1 times [2022-07-19 17:07:38,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:07:38,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234720283] [2022-07-19 17:07:38,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:07:38,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:07:38,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:38,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:07:38,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:38,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:07:38,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:38,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:07:38,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:38,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:07:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:38,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-19 17:07:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:38,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-19 17:07:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:38,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-19 17:07:38,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:38,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-19 17:07:38,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:38,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-19 17:07:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:38,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-19 17:07:38,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:38,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-19 17:07:38,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:38,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-19 17:07:38,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:38,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-19 17:07:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:38,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:07:38,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:38,304 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-19 17:07:38,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:07:38,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234720283] [2022-07-19 17:07:38,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234720283] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:07:38,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684477910] [2022-07-19 17:07:38,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:07:38,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:07:38,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:07:38,307 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:07:38,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-19 17:07:38,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:38,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 1183 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-19 17:07:38,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:07:38,634 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-19 17:07:38,634 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:07:38,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684477910] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:07:38,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:07:38,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-07-19 17:07:38,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914062555] [2022-07-19 17:07:38,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:07:38,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:07:38,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:07:38,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:07:38,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-07-19 17:07:38,637 INFO L87 Difference]: Start difference. First operand 469 states and 729 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:07:38,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:07:38,702 INFO L93 Difference]: Finished difference Result 927 states and 1447 transitions. [2022-07-19 17:07:38,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:07:38,703 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 130 [2022-07-19 17:07:38,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:07:38,706 INFO L225 Difference]: With dead ends: 927 [2022-07-19 17:07:38,706 INFO L226 Difference]: Without dead ends: 471 [2022-07-19 17:07:38,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-07-19 17:07:38,709 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 159 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 2166 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:07:38,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 2166 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:07:38,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2022-07-19 17:07:38,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 471. [2022-07-19 17:07:38,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 368 states have (on average 1.5679347826086956) internal successors, (577), 374 states have internal predecessors, (577), 76 states have call successors, (76), 24 states have call predecessors, (76), 26 states have return successors, (82), 74 states have call predecessors, (82), 75 states have call successors, (82) [2022-07-19 17:07:38,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 735 transitions. [2022-07-19 17:07:38,739 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 735 transitions. Word has length 130 [2022-07-19 17:07:38,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:07:38,741 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 735 transitions. [2022-07-19 17:07:38,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:07:38,741 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 735 transitions. [2022-07-19 17:07:38,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-07-19 17:07:38,744 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:07:38,744 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-07-19 17:07:38,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-19 17:07:38,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:07:38,961 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:07:38,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:07:38,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1348183497, now seen corresponding path program 1 times [2022-07-19 17:07:38,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:07:38,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001819123] [2022-07-19 17:07:38,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:07:38,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:07:38,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:39,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:07:39,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:39,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:07:39,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:39,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:07:39,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:39,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:07:39,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:39,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:07:39,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:39,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 17:07:39,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:39,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-19 17:07:39,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:39,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-19 17:07:39,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:39,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-19 17:07:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:39,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-19 17:07:39,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:39,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-19 17:07:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:39,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-19 17:07:39,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:39,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-19 17:07:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:39,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:07:39,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:39,080 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-19 17:07:39,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:07:39,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001819123] [2022-07-19 17:07:39,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001819123] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:07:39,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:07:39,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 17:07:39,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728913876] [2022-07-19 17:07:39,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:07:39,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 17:07:39,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:07:39,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 17:07:39,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 17:07:39,082 INFO L87 Difference]: Start difference. First operand 471 states and 735 transitions. Second operand has 9 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:07:41,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:07:41,222 INFO L93 Difference]: Finished difference Result 1099 states and 1744 transitions. [2022-07-19 17:07:41,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 17:07:41,223 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 131 [2022-07-19 17:07:41,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:07:41,228 INFO L225 Difference]: With dead ends: 1099 [2022-07-19 17:07:41,228 INFO L226 Difference]: Without dead ends: 651 [2022-07-19 17:07:41,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-07-19 17:07:41,232 INFO L413 NwaCegarLoop]: 701 mSDtfsCounter, 1490 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 2433 mSolverCounterSat, 610 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 1734 SdHoareTripleChecker+Invalid, 3043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 610 IncrementalHoareTripleChecker+Valid, 2433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-19 17:07:41,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 1734 Invalid, 3043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [610 Valid, 2433 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-19 17:07:41,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2022-07-19 17:07:41,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 471. [2022-07-19 17:07:41,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 368 states have (on average 1.5679347826086956) internal successors, (577), 374 states have internal predecessors, (577), 76 states have call successors, (76), 24 states have call predecessors, (76), 26 states have return successors, (81), 74 states have call predecessors, (81), 75 states have call successors, (81) [2022-07-19 17:07:41,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 734 transitions. [2022-07-19 17:07:41,295 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 734 transitions. Word has length 131 [2022-07-19 17:07:41,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:07:41,296 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 734 transitions. [2022-07-19 17:07:41,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:07:41,296 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 734 transitions. [2022-07-19 17:07:41,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-07-19 17:07:41,299 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:07:41,299 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-07-19 17:07:41,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 17:07:41,299 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:07:41,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:07:41,300 INFO L85 PathProgramCache]: Analyzing trace with hash -995312525, now seen corresponding path program 2 times [2022-07-19 17:07:41,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:07:41,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124101001] [2022-07-19 17:07:41,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:07:41,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:07:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:41,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:07:41,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:41,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:07:41,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:41,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:07:41,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:41,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:07:41,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:41,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:07:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:41,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-19 17:07:41,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:41,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-19 17:07:41,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:41,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 17:07:41,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:41,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-19 17:07:41,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:41,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-19 17:07:41,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:41,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-19 17:07:41,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:41,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-19 17:07:41,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:41,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-19 17:07:41,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:41,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:07:41,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:41,466 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-19 17:07:41,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:07:41,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124101001] [2022-07-19 17:07:41,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124101001] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:07:41,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:07:41,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 17:07:41,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639861079] [2022-07-19 17:07:41,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:07:41,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 17:07:41,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:07:41,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 17:07:41,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 17:07:41,469 INFO L87 Difference]: Start difference. First operand 471 states and 734 transitions. Second operand has 9 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:07:43,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:07:43,554 INFO L93 Difference]: Finished difference Result 1101 states and 1747 transitions. [2022-07-19 17:07:43,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 17:07:43,555 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 132 [2022-07-19 17:07:43,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:07:43,559 INFO L225 Difference]: With dead ends: 1101 [2022-07-19 17:07:43,560 INFO L226 Difference]: Without dead ends: 653 [2022-07-19 17:07:43,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-07-19 17:07:43,562 INFO L413 NwaCegarLoop]: 699 mSDtfsCounter, 1463 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 2481 mSolverCounterSat, 578 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 3059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 578 IncrementalHoareTripleChecker+Valid, 2481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-19 17:07:43,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1483 Valid, 1732 Invalid, 3059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [578 Valid, 2481 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-19 17:07:43,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2022-07-19 17:07:43,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 473. [2022-07-19 17:07:43,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 369 states have (on average 1.5663956639566397) internal successors, (578), 376 states have internal predecessors, (578), 76 states have call successors, (76), 24 states have call predecessors, (76), 27 states have return successors, (83), 74 states have call predecessors, (83), 75 states have call successors, (83) [2022-07-19 17:07:43,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 737 transitions. [2022-07-19 17:07:43,605 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 737 transitions. Word has length 132 [2022-07-19 17:07:43,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:07:43,605 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 737 transitions. [2022-07-19 17:07:43,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:07:43,606 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 737 transitions. [2022-07-19 17:07:43,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-07-19 17:07:43,609 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:07:43,609 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2022-07-19 17:07:43,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 17:07:43,610 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:07:43,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:07:43,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1803244692, now seen corresponding path program 1 times [2022-07-19 17:07:43,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:07:43,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241736258] [2022-07-19 17:07:43,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:07:43,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:07:43,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:43,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:07:43,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:43,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:07:43,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:43,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:07:43,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:43,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:07:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:43,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:07:43,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:43,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:07:43,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:43,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 17:07:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:43,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-19 17:07:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:43,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 17:07:43,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:43,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-19 17:07:43,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:43,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:07:43,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:43,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-19 17:07:43,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:43,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-19 17:07:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:43,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-19 17:07:43,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:43,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-19 17:07:43,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:43,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-19 17:07:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:43,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:07:43,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:43,767 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-19 17:07:43,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:07:43,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241736258] [2022-07-19 17:07:43,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241736258] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:07:43,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:07:43,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 17:07:43,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835058713] [2022-07-19 17:07:43,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:07:43,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 17:07:43,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:07:43,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 17:07:43,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-19 17:07:43,770 INFO L87 Difference]: Start difference. First operand 473 states and 737 transitions. Second operand has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 8 states have internal predecessors, (98), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2022-07-19 17:07:46,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:07:46,541 INFO L93 Difference]: Finished difference Result 1099 states and 1742 transitions. [2022-07-19 17:07:46,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 17:07:46,541 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 8 states have internal predecessors, (98), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 152 [2022-07-19 17:07:46,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:07:46,545 INFO L225 Difference]: With dead ends: 1099 [2022-07-19 17:07:46,545 INFO L226 Difference]: Without dead ends: 653 [2022-07-19 17:07:46,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-07-19 17:07:46,548 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 1637 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 4381 mSolverCounterSat, 666 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1637 SdHoareTripleChecker+Valid, 2106 SdHoareTripleChecker+Invalid, 5047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 666 IncrementalHoareTripleChecker+Valid, 4381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-19 17:07:46,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1637 Valid, 2106 Invalid, 5047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [666 Valid, 4381 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-19 17:07:46,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2022-07-19 17:07:46,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 473. [2022-07-19 17:07:46,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 369 states have (on average 1.5663956639566397) internal successors, (578), 376 states have internal predecessors, (578), 76 states have call successors, (76), 24 states have call predecessors, (76), 27 states have return successors, (82), 74 states have call predecessors, (82), 75 states have call successors, (82) [2022-07-19 17:07:46,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 736 transitions. [2022-07-19 17:07:46,575 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 736 transitions. Word has length 152 [2022-07-19 17:07:46,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:07:46,575 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 736 transitions. [2022-07-19 17:07:46,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 8 states have internal predecessors, (98), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2022-07-19 17:07:46,575 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 736 transitions. [2022-07-19 17:07:46,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-07-19 17:07:46,578 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:07:46,578 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:07:46,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 17:07:46,579 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:07:46,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:07:46,579 INFO L85 PathProgramCache]: Analyzing trace with hash -2026345302, now seen corresponding path program 2 times [2022-07-19 17:07:46,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:07:46,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587401693] [2022-07-19 17:07:46,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:07:46,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:07:46,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:46,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:07:46,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:46,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:07:46,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:46,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:07:46,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:46,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:07:46,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:46,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:07:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:46,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:07:46,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:46,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-19 17:07:46,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:46,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-19 17:07:46,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:46,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-19 17:07:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:46,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-19 17:07:46,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:46,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-19 17:07:46,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:46,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-19 17:07:46,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:46,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-19 17:07:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:46,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-19 17:07:46,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:46,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-19 17:07:46,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:46,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-19 17:07:46,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:46,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:07:46,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:46,729 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-19 17:07:46,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:07:46,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587401693] [2022-07-19 17:07:46,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587401693] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:07:46,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:07:46,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 17:07:46,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081125659] [2022-07-19 17:07:46,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:07:46,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 17:07:46,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:07:46,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 17:07:46,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-19 17:07:46,738 INFO L87 Difference]: Start difference. First operand 473 states and 736 transitions. Second operand has 12 states, 11 states have (on average 9.0) internal successors, (99), 8 states have internal predecessors, (99), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2022-07-19 17:07:49,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:07:49,293 INFO L93 Difference]: Finished difference Result 1101 states and 1748 transitions. [2022-07-19 17:07:49,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 17:07:49,294 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.0) internal successors, (99), 8 states have internal predecessors, (99), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 153 [2022-07-19 17:07:49,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:07:49,298 INFO L225 Difference]: With dead ends: 1101 [2022-07-19 17:07:49,298 INFO L226 Difference]: Without dead ends: 655 [2022-07-19 17:07:49,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-07-19 17:07:49,301 INFO L413 NwaCegarLoop]: 685 mSDtfsCounter, 1638 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 4412 mSolverCounterSat, 665 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1638 SdHoareTripleChecker+Valid, 2107 SdHoareTripleChecker+Invalid, 5077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 665 IncrementalHoareTripleChecker+Valid, 4412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-19 17:07:49,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1638 Valid, 2107 Invalid, 5077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [665 Valid, 4412 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-19 17:07:49,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2022-07-19 17:07:49,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 475. [2022-07-19 17:07:49,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 370 states have (on average 1.5648648648648649) internal successors, (579), 378 states have internal predecessors, (579), 76 states have call successors, (76), 24 states have call predecessors, (76), 28 states have return successors, (87), 74 states have call predecessors, (87), 75 states have call successors, (87) [2022-07-19 17:07:49,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 742 transitions. [2022-07-19 17:07:49,330 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 742 transitions. Word has length 153 [2022-07-19 17:07:49,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:07:49,330 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 742 transitions. [2022-07-19 17:07:49,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.0) internal successors, (99), 8 states have internal predecessors, (99), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2022-07-19 17:07:49,331 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 742 transitions. [2022-07-19 17:07:49,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-19 17:07:49,333 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:07:49,333 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:07:49,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 17:07:49,334 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:07:49,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:07:49,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1436170559, now seen corresponding path program 1 times [2022-07-19 17:07:49,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:07:49,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478755167] [2022-07-19 17:07:49,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:07:49,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:07:49,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:49,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:07:49,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:49,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:07:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:49,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:07:49,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:49,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:07:49,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:49,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:07:49,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:49,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:07:49,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:49,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-19 17:07:49,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:49,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-19 17:07:49,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:49,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-19 17:07:49,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:49,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-19 17:07:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:49,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 17:07:49,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:49,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-19 17:07:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:49,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-19 17:07:49,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:49,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:07:49,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:49,455 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-19 17:07:49,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:07:49,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478755167] [2022-07-19 17:07:49,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478755167] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:07:49,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350720182] [2022-07-19 17:07:49,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:07:49,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:07:49,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:07:49,457 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:07:49,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-19 17:07:49,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:49,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 1188 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 17:07:49,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:07:49,760 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-19 17:07:49,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 17:07:49,856 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-19 17:07:49,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350720182] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 17:07:49,857 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 17:07:49,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2022-07-19 17:07:49,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950254531] [2022-07-19 17:07:49,860 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 17:07:49,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-19 17:07:49,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:07:49,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-19 17:07:49,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-07-19 17:07:49,862 INFO L87 Difference]: Start difference. First operand 475 states and 742 transitions. Second operand has 15 states, 14 states have (on average 10.428571428571429) internal successors, (146), 11 states have internal predecessors, (146), 4 states have call successors, (34), 6 states have call predecessors, (34), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-19 17:07:53,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:07:53,534 INFO L93 Difference]: Finished difference Result 2010 states and 3386 transitions. [2022-07-19 17:07:53,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-19 17:07:53,535 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.428571428571429) internal successors, (146), 11 states have internal predecessors, (146), 4 states have call successors, (34), 6 states have call predecessors, (34), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 135 [2022-07-19 17:07:53,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:07:53,545 INFO L225 Difference]: With dead ends: 2010 [2022-07-19 17:07:53,545 INFO L226 Difference]: Without dead ends: 1566 [2022-07-19 17:07:53,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2022-07-19 17:07:53,548 INFO L413 NwaCegarLoop]: 873 mSDtfsCounter, 4086 mSDsluCounter, 3115 mSDsCounter, 0 mSdLazyCounter, 5300 mSolverCounterSat, 1614 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4088 SdHoareTripleChecker+Valid, 3988 SdHoareTripleChecker+Invalid, 6914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1614 IncrementalHoareTripleChecker+Valid, 5300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:07:53,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4088 Valid, 3988 Invalid, 6914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1614 Valid, 5300 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-19 17:07:53,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1566 states. [2022-07-19 17:07:53,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1566 to 918. [2022-07-19 17:07:53,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 734 states have (on average 1.6144414168937329) internal successors, (1185), 742 states have internal predecessors, (1185), 155 states have call successors, (155), 24 states have call predecessors, (155), 28 states have return successors, (176), 153 states have call predecessors, (176), 154 states have call successors, (176) [2022-07-19 17:07:53,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1516 transitions. [2022-07-19 17:07:53,619 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1516 transitions. Word has length 135 [2022-07-19 17:07:53,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:07:53,620 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1516 transitions. [2022-07-19 17:07:53,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.428571428571429) internal successors, (146), 11 states have internal predecessors, (146), 4 states have call successors, (34), 6 states have call predecessors, (34), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-19 17:07:53,620 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1516 transitions. [2022-07-19 17:07:53,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-19 17:07:53,626 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:07:53,626 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2022-07-19 17:07:53,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-19 17:07:53,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:07:53,852 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:07:53,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:07:53,852 INFO L85 PathProgramCache]: Analyzing trace with hash -951969000, now seen corresponding path program 1 times [2022-07-19 17:07:53,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:07:53,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229242981] [2022-07-19 17:07:53,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:07:53,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:07:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:53,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:07:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:53,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:07:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:53,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:07:53,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:53,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:07:53,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:53,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:07:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:53,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:07:53,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:53,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-19 17:07:53,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:53,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-19 17:07:53,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:53,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-19 17:07:53,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:53,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-19 17:07:53,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:53,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-19 17:07:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:53,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-19 17:07:53,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:53,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-19 17:07:53,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:53,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-19 17:07:53,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:53,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-19 17:07:53,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:53,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:07:53,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:53,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:07:53,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:53,975 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-19 17:07:53,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:07:53,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229242981] [2022-07-19 17:07:53,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229242981] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:07:53,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:07:53,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:07:53,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216693195] [2022-07-19 17:07:53,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:07:53,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:07:53,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:07:53,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:07:53,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:07:53,978 INFO L87 Difference]: Start difference. First operand 918 states and 1516 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-19 17:07:55,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:07:55,414 INFO L93 Difference]: Finished difference Result 2361 states and 3994 transitions. [2022-07-19 17:07:55,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:07:55,414 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 157 [2022-07-19 17:07:55,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:07:55,423 INFO L225 Difference]: With dead ends: 2361 [2022-07-19 17:07:55,423 INFO L226 Difference]: Without dead ends: 1521 [2022-07-19 17:07:55,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:07:55,427 INFO L413 NwaCegarLoop]: 744 mSDtfsCounter, 1478 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 661 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1570 SdHoareTripleChecker+Invalid, 1930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 661 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:07:55,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1570 Invalid, 1930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [661 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-19 17:07:55,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2022-07-19 17:07:55,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1333. [2022-07-19 17:07:55,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1333 states, 1070 states have (on average 1.6308411214953271) internal successors, (1745), 1078 states have internal predecessors, (1745), 234 states have call successors, (234), 24 states have call predecessors, (234), 28 states have return successors, (265), 232 states have call predecessors, (265), 233 states have call successors, (265) [2022-07-19 17:07:55,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 2244 transitions. [2022-07-19 17:07:55,512 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 2244 transitions. Word has length 157 [2022-07-19 17:07:55,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:07:55,513 INFO L495 AbstractCegarLoop]: Abstraction has 1333 states and 2244 transitions. [2022-07-19 17:07:55,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-19 17:07:55,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 2244 transitions. [2022-07-19 17:07:55,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-07-19 17:07:55,521 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:07:55,521 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:07:55,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-19 17:07:55,521 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:07:55,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:07:55,522 INFO L85 PathProgramCache]: Analyzing trace with hash -772100245, now seen corresponding path program 1 times [2022-07-19 17:07:55,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:07:55,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640554054] [2022-07-19 17:07:55,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:07:55,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:07:55,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:55,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:07:55,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:55,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:07:55,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:55,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:07:55,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:55,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:07:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:55,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:07:55,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:55,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:07:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:55,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-19 17:07:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:55,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-19 17:07:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:55,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-19 17:07:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:55,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:07:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:55,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-19 17:07:55,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:55,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-19 17:07:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:55,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-19 17:07:55,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:55,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-19 17:07:55,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:55,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-19 17:07:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:55,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-19 17:07:55,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:55,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:07:55,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:55,630 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-19 17:07:55,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:07:55,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640554054] [2022-07-19 17:07:55,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640554054] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:07:55,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:07:55,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:07:55,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253170217] [2022-07-19 17:07:55,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:07:55,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:07:55,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:07:55,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:07:55,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:07:55,633 INFO L87 Difference]: Start difference. First operand 1333 states and 2244 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-19 17:07:57,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:07:57,009 INFO L93 Difference]: Finished difference Result 3400 states and 5807 transitions. [2022-07-19 17:07:57,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:07:57,010 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 158 [2022-07-19 17:07:57,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:07:57,021 INFO L225 Difference]: With dead ends: 3400 [2022-07-19 17:07:57,022 INFO L226 Difference]: Without dead ends: 2198 [2022-07-19 17:07:57,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:07:57,026 INFO L413 NwaCegarLoop]: 734 mSDtfsCounter, 1442 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 656 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1460 SdHoareTripleChecker+Valid, 1548 SdHoareTripleChecker+Invalid, 1921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 656 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:07:57,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1460 Valid, 1548 Invalid, 1921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [656 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-19 17:07:57,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2198 states. [2022-07-19 17:07:57,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2198 to 2010. [2022-07-19 17:07:57,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2010 states, 1628 states have (on average 1.6382063882063882) internal successors, (2667), 1636 states have internal predecessors, (2667), 353 states have call successors, (353), 24 states have call predecessors, (353), 28 states have return successors, (384), 351 states have call predecessors, (384), 352 states have call successors, (384) [2022-07-19 17:07:57,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2010 states to 2010 states and 3404 transitions. [2022-07-19 17:07:57,152 INFO L78 Accepts]: Start accepts. Automaton has 2010 states and 3404 transitions. Word has length 158 [2022-07-19 17:07:57,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:07:57,152 INFO L495 AbstractCegarLoop]: Abstraction has 2010 states and 3404 transitions. [2022-07-19 17:07:57,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-19 17:07:57,153 INFO L276 IsEmpty]: Start isEmpty. Operand 2010 states and 3404 transitions. [2022-07-19 17:07:57,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-19 17:07:57,163 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:07:57,163 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:07:57,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-19 17:07:57,163 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:07:57,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:07:57,164 INFO L85 PathProgramCache]: Analyzing trace with hash 679893194, now seen corresponding path program 1 times [2022-07-19 17:07:57,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:07:57,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144141984] [2022-07-19 17:07:57,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:07:57,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:07:57,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:57,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:07:57,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:57,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:07:57,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:57,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:07:57,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:57,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:07:57,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:57,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:07:57,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:57,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:07:57,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:57,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-19 17:07:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:57,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-19 17:07:57,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:57,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-19 17:07:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:57,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-19 17:07:57,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:57,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-19 17:07:57,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:57,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-19 17:07:57,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:57,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-19 17:07:57,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:57,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:07:57,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:57,267 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-19 17:07:57,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:07:57,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144141984] [2022-07-19 17:07:57,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144141984] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:07:57,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:07:57,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:07:57,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429223801] [2022-07-19 17:07:57,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:07:57,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:07:57,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:07:57,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:07:57,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:07:57,269 INFO L87 Difference]: Start difference. First operand 2010 states and 3404 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:07:58,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:07:58,660 INFO L93 Difference]: Finished difference Result 4985 states and 8586 transitions. [2022-07-19 17:07:58,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:07:58,661 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 140 [2022-07-19 17:07:58,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:07:58,679 INFO L225 Difference]: With dead ends: 4985 [2022-07-19 17:07:58,679 INFO L226 Difference]: Without dead ends: 3241 [2022-07-19 17:07:58,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:07:58,686 INFO L413 NwaCegarLoop]: 727 mSDtfsCounter, 1489 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1254 mSolverCounterSat, 656 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1532 SdHoareTripleChecker+Invalid, 1910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 656 IncrementalHoareTripleChecker+Valid, 1254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:07:58,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1532 Invalid, 1910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [656 Valid, 1254 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-19 17:07:58,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3241 states. [2022-07-19 17:07:58,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3241 to 3053. [2022-07-19 17:07:58,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3053 states, 2509 states have (on average 1.6440813072937426) internal successors, (4125), 2517 states have internal predecessors, (4125), 515 states have call successors, (515), 24 states have call predecessors, (515), 28 states have return successors, (562), 513 states have call predecessors, (562), 514 states have call successors, (562) [2022-07-19 17:07:58,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3053 states to 3053 states and 5202 transitions. [2022-07-19 17:07:58,899 INFO L78 Accepts]: Start accepts. Automaton has 3053 states and 5202 transitions. Word has length 140 [2022-07-19 17:07:58,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:07:58,900 INFO L495 AbstractCegarLoop]: Abstraction has 3053 states and 5202 transitions. [2022-07-19 17:07:58,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:07:58,900 INFO L276 IsEmpty]: Start isEmpty. Operand 3053 states and 5202 transitions. [2022-07-19 17:07:58,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-07-19 17:07:58,914 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:07:58,914 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2022-07-19 17:07:58,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-19 17:07:58,914 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:07:58,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:07:58,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1921777772, now seen corresponding path program 1 times [2022-07-19 17:07:58,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:07:58,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230612046] [2022-07-19 17:07:58,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:07:58,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:07:58,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:58,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:07:58,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:58,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:07:58,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:58,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:07:59,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:59,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:07:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:59,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:07:59,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:59,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:07:59,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:59,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 17:07:59,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:59,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-19 17:07:59,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:59,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-19 17:07:59,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:59,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-19 17:07:59,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:59,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-19 17:07:59,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:59,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-19 17:07:59,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:59,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-19 17:07:59,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:59,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-19 17:07:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:59,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-19 17:07:59,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:59,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-19 17:07:59,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:59,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:07:59,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:07:59,060 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-19 17:07:59,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:07:59,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230612046] [2022-07-19 17:07:59,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230612046] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:07:59,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:07:59,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:07:59,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991884889] [2022-07-19 17:07:59,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:07:59,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:07:59,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:07:59,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:07:59,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:07:59,063 INFO L87 Difference]: Start difference. First operand 3053 states and 5202 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, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-19 17:08:00,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:08:00,572 INFO L93 Difference]: Finished difference Result 7499 states and 13001 transitions. [2022-07-19 17:08:00,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:08:00,572 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, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 160 [2022-07-19 17:08:00,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:08:00,597 INFO L225 Difference]: With dead ends: 7499 [2022-07-19 17:08:00,598 INFO L226 Difference]: Without dead ends: 4931 [2022-07-19 17:08:00,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:08:00,607 INFO L413 NwaCegarLoop]: 730 mSDtfsCounter, 1487 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 647 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 1904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 647 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:08:00,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 1535 Invalid, 1904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [647 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-19 17:08:00,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4931 states. [2022-07-19 17:08:00,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4931 to 4743. [2022-07-19 17:08:00,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4743 states, 3954 states have (on average 1.6482043500252908) internal successors, (6517), 3962 states have internal predecessors, (6517), 760 states have call successors, (760), 24 states have call predecessors, (760), 28 states have return successors, (833), 758 states have call predecessors, (833), 759 states have call successors, (833) [2022-07-19 17:08:00,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4743 states to 4743 states and 8110 transitions. [2022-07-19 17:08:00,937 INFO L78 Accepts]: Start accepts. Automaton has 4743 states and 8110 transitions. Word has length 160 [2022-07-19 17:08:00,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:08:00,937 INFO L495 AbstractCegarLoop]: Abstraction has 4743 states and 8110 transitions. [2022-07-19 17:08:00,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-19 17:08:00,939 INFO L276 IsEmpty]: Start isEmpty. Operand 4743 states and 8110 transitions. [2022-07-19 17:08:00,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-19 17:08:00,956 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:08:00,956 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-07-19 17:08:00,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-19 17:08:00,956 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:08:00,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:08:00,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1589499538, now seen corresponding path program 1 times [2022-07-19 17:08:00,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:08:00,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623091788] [2022-07-19 17:08:00,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:08:00,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:08:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:01,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:08:01,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:01,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:08:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:01,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:08:01,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:01,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:08:01,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:01,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:08:01,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:01,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:08:01,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:01,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-19 17:08:01,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:01,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 17:08:01,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:01,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-19 17:08:01,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:01,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-19 17:08:01,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:01,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-19 17:08:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:01,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-19 17:08:01,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:01,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-19 17:08:01,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:01,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:08:01,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:01,084 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-19 17:08:01,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:08:01,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623091788] [2022-07-19 17:08:01,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623091788] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:08:01,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:08:01,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:08:01,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020674701] [2022-07-19 17:08:01,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:08:01,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:08:01,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:08:01,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:08:01,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:08:01,087 INFO L87 Difference]: Start difference. First operand 4743 states and 8110 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:08:02,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:08:02,664 INFO L93 Difference]: Finished difference Result 11700 states and 20378 transitions. [2022-07-19 17:08:02,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:08:02,665 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 142 [2022-07-19 17:08:02,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:08:02,716 INFO L225 Difference]: With dead ends: 11700 [2022-07-19 17:08:02,716 INFO L226 Difference]: Without dead ends: 7774 [2022-07-19 17:08:02,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:08:02,732 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 1435 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 631 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1453 SdHoareTripleChecker+Valid, 1594 SdHoareTripleChecker+Invalid, 1938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 631 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:08:02,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1453 Valid, 1594 Invalid, 1938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [631 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-19 17:08:02,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7774 states. [2022-07-19 17:08:03,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7774 to 7586. [2022-07-19 17:08:03,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7586 states, 6304 states have (on average 1.6459390862944163) internal successors, (10376), 6312 states have internal predecessors, (10376), 1253 states have call successors, (1253), 24 states have call predecessors, (1253), 28 states have return successors, (1370), 1251 states have call predecessors, (1370), 1252 states have call successors, (1370) [2022-07-19 17:08:03,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7586 states to 7586 states and 12999 transitions. [2022-07-19 17:08:03,220 INFO L78 Accepts]: Start accepts. Automaton has 7586 states and 12999 transitions. Word has length 142 [2022-07-19 17:08:03,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:08:03,221 INFO L495 AbstractCegarLoop]: Abstraction has 7586 states and 12999 transitions. [2022-07-19 17:08:03,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:08:03,221 INFO L276 IsEmpty]: Start isEmpty. Operand 7586 states and 12999 transitions. [2022-07-19 17:08:03,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-07-19 17:08:03,248 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:08:03,249 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:08:03,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-19 17:08:03,249 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:08:03,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:08:03,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1846042560, now seen corresponding path program 1 times [2022-07-19 17:08:03,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:08:03,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617284872] [2022-07-19 17:08:03,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:08:03,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:08:03,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:03,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:08:03,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:03,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:08:03,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:03,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:08:03,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:03,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:08:03,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:03,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:08:03,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:03,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:08:03,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:03,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-19 17:08:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:03,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-19 17:08:03,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:03,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-19 17:08:03,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:03,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-19 17:08:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:03,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-19 17:08:03,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:03,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-19 17:08:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:03,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-19 17:08:03,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:03,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:08:03,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:03,361 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-19 17:08:03,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:08:03,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617284872] [2022-07-19 17:08:03,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617284872] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:08:03,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:08:03,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:08:03,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255599440] [2022-07-19 17:08:03,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:08:03,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:08:03,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:08:03,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:08:03,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:08:03,363 INFO L87 Difference]: Start difference. First operand 7586 states and 12999 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:08:05,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:08:05,337 INFO L93 Difference]: Finished difference Result 19315 states and 33654 transitions. [2022-07-19 17:08:05,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:08:05,338 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 143 [2022-07-19 17:08:05,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:08:05,387 INFO L225 Difference]: With dead ends: 19315 [2022-07-19 17:08:05,387 INFO L226 Difference]: Without dead ends: 12948 [2022-07-19 17:08:05,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:08:05,410 INFO L413 NwaCegarLoop]: 735 mSDtfsCounter, 1468 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 669 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 1549 SdHoareTripleChecker+Invalid, 1922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 669 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-19 17:08:05,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1486 Valid, 1549 Invalid, 1922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [669 Valid, 1253 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-19 17:08:05,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12948 states. [2022-07-19 17:08:06,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12948 to 12760. [2022-07-19 17:08:06,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12760 states, 10656 states have (on average 1.645927177177177) internal successors, (17539), 10664 states have internal predecessors, (17539), 2075 states have call successors, (2075), 24 states have call predecessors, (2075), 28 states have return successors, (2270), 2073 states have call predecessors, (2270), 2074 states have call successors, (2270) [2022-07-19 17:08:06,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12760 states to 12760 states and 21884 transitions. [2022-07-19 17:08:06,126 INFO L78 Accepts]: Start accepts. Automaton has 12760 states and 21884 transitions. Word has length 143 [2022-07-19 17:08:06,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:08:06,126 INFO L495 AbstractCegarLoop]: Abstraction has 12760 states and 21884 transitions. [2022-07-19 17:08:06,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:08:06,127 INFO L276 IsEmpty]: Start isEmpty. Operand 12760 states and 21884 transitions. [2022-07-19 17:08:06,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-19 17:08:06,165 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:08:06,165 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2022-07-19 17:08:06,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-19 17:08:06,167 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:08:06,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:08:06,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1847273904, now seen corresponding path program 1 times [2022-07-19 17:08:06,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:08:06,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181973220] [2022-07-19 17:08:06,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:08:06,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:08:06,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:06,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:08:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:06,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:08:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:06,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:08:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:06,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:08:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:06,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:08:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:06,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:08:06,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:06,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-19 17:08:06,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:06,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-19 17:08:06,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:06,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-19 17:08:06,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:06,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-19 17:08:06,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:06,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-19 17:08:06,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:06,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-19 17:08:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:06,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-19 17:08:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:06,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-19 17:08:06,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:06,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-19 17:08:06,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:06,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-19 17:08:06,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:06,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:08:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:06,333 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-19 17:08:06,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:08:06,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181973220] [2022-07-19 17:08:06,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181973220] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:08:06,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:08:06,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:08:06,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789053825] [2022-07-19 17:08:06,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:08:06,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:08:06,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:08:06,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:08:06,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:08:06,336 INFO L87 Difference]: Start difference. First operand 12760 states and 21884 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, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-19 17:08:08,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:08:08,552 INFO L93 Difference]: Finished difference Result 30798 states and 53354 transitions. [2022-07-19 17:08:08,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:08:08,553 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, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 163 [2022-07-19 17:08:08,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:08:08,636 INFO L225 Difference]: With dead ends: 30798 [2022-07-19 17:08:08,636 INFO L226 Difference]: Without dead ends: 20261 [2022-07-19 17:08:08,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:08:08,674 INFO L413 NwaCegarLoop]: 735 mSDtfsCounter, 1430 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 629 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1448 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 1899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 629 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-19 17:08:08,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1448 Valid, 1519 Invalid, 1899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [629 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-19 17:08:08,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20261 states. [2022-07-19 17:08:09,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20261 to 20073. [2022-07-19 17:08:09,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20073 states, 16766 states have (on average 1.6214362400095432) internal successors, (27185), 16774 states have internal predecessors, (27185), 3278 states have call successors, (3278), 24 states have call predecessors, (3278), 28 states have return successors, (3617), 3276 states have call predecessors, (3617), 3277 states have call successors, (3617) [2022-07-19 17:08:09,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20073 states to 20073 states and 34080 transitions. [2022-07-19 17:08:09,889 INFO L78 Accepts]: Start accepts. Automaton has 20073 states and 34080 transitions. Word has length 163 [2022-07-19 17:08:09,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:08:09,889 INFO L495 AbstractCegarLoop]: Abstraction has 20073 states and 34080 transitions. [2022-07-19 17:08:09,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-19 17:08:09,890 INFO L276 IsEmpty]: Start isEmpty. Operand 20073 states and 34080 transitions. [2022-07-19 17:08:09,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-07-19 17:08:09,924 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:08:09,925 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2022-07-19 17:08:09,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-19 17:08:09,925 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:08:09,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:08:09,926 INFO L85 PathProgramCache]: Analyzing trace with hash 273368497, now seen corresponding path program 1 times [2022-07-19 17:08:09,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:08:09,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196422340] [2022-07-19 17:08:09,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:08:09,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:08:09,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:09,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:08:09,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:09,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:08:09,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:09,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:08:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:09,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:08:09,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:09,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:08:09,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:09,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:08:09,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:10,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-19 17:08:10,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:10,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-19 17:08:10,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:10,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 17:08:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:10,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-19 17:08:10,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:10,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-19 17:08:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:10,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-19 17:08:10,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:10,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-19 17:08:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:10,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-19 17:08:10,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:10,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-19 17:08:10,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:10,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-19 17:08:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:10,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:08:10,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:10,027 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-19 17:08:10,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:08:10,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196422340] [2022-07-19 17:08:10,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196422340] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:08:10,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:08:10,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:08:10,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361843178] [2022-07-19 17:08:10,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:08:10,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:08:10,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:08:10,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:08:10,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:08:10,031 INFO L87 Difference]: Start difference. First operand 20073 states and 34080 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-19 17:08:12,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:08:12,720 INFO L93 Difference]: Finished difference Result 53240 states and 91888 transitions. [2022-07-19 17:08:12,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:08:12,720 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 164 [2022-07-19 17:08:12,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:08:12,882 INFO L225 Difference]: With dead ends: 53240 [2022-07-19 17:08:12,882 INFO L226 Difference]: Without dead ends: 36067 [2022-07-19 17:08:13,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:08:13,054 INFO L413 NwaCegarLoop]: 737 mSDtfsCounter, 1428 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 642 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1446 SdHoareTripleChecker+Valid, 1543 SdHoareTripleChecker+Invalid, 1941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 642 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-19 17:08:13,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1446 Valid, 1543 Invalid, 1941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [642 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-19 17:08:13,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36067 states. [2022-07-19 17:08:15,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36067 to 35879. [2022-07-19 17:08:15,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35879 states, 30122 states have (on average 1.6183188367306287) internal successors, (48747), 30130 states have internal predecessors, (48747), 5728 states have call successors, (5728), 24 states have call predecessors, (5728), 28 states have return successors, (6341), 5726 states have call predecessors, (6341), 5727 states have call successors, (6341) [2022-07-19 17:08:15,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35879 states to 35879 states and 60816 transitions. [2022-07-19 17:08:15,205 INFO L78 Accepts]: Start accepts. Automaton has 35879 states and 60816 transitions. Word has length 164 [2022-07-19 17:08:15,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:08:15,205 INFO L495 AbstractCegarLoop]: Abstraction has 35879 states and 60816 transitions. [2022-07-19 17:08:15,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-19 17:08:15,206 INFO L276 IsEmpty]: Start isEmpty. Operand 35879 states and 60816 transitions. [2022-07-19 17:08:15,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-07-19 17:08:15,249 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:08:15,249 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2022-07-19 17:08:15,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-19 17:08:15,249 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:08:15,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:08:15,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1620867094, now seen corresponding path program 1 times [2022-07-19 17:08:15,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:08:15,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795424016] [2022-07-19 17:08:15,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:08:15,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:08:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:15,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:08:15,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:15,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:08:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:15,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:08:15,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:15,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:08:15,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:15,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:08:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:15,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:08:15,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:15,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-19 17:08:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:15,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-19 17:08:15,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:15,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-19 17:08:15,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:15,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-19 17:08:15,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:15,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-19 17:08:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:15,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-19 17:08:15,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:15,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-19 17:08:15,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:15,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-19 17:08:15,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:15,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-19 17:08:15,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:15,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-19 17:08:15,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:15,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:08:15,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:15,338 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-19 17:08:15,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:08:15,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795424016] [2022-07-19 17:08:15,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795424016] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:08:15,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:08:15,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:08:15,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271710084] [2022-07-19 17:08:15,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:08:15,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:08:15,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:08:15,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:08:15,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:08:15,340 INFO L87 Difference]: Start difference. First operand 35879 states and 60816 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, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-19 17:08:19,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:08:19,168 INFO L93 Difference]: Finished difference Result 98087 states and 168447 transitions. [2022-07-19 17:08:19,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:08:19,168 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, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 165 [2022-07-19 17:08:19,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:08:19,524 INFO L225 Difference]: With dead ends: 98087 [2022-07-19 17:08:19,524 INFO L226 Difference]: Without dead ends: 66064 [2022-07-19 17:08:19,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:08:19,604 INFO L413 NwaCegarLoop]: 732 mSDtfsCounter, 1429 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 643 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1447 SdHoareTripleChecker+Valid, 1538 SdHoareTripleChecker+Invalid, 1915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 643 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:08:19,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1447 Valid, 1538 Invalid, 1915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [643 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-19 17:08:19,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66064 states. [2022-07-19 17:08:22,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66064 to 65876. [2022-07-19 17:08:22,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65876 states, 55606 states have (on average 1.6142142934215733) internal successors, (89760), 55614 states have internal predecessors, (89760), 10241 states have call successors, (10241), 24 states have call predecessors, (10241), 28 states have return successors, (11386), 10239 states have call predecessors, (11386), 10240 states have call successors, (11386) [2022-07-19 17:08:23,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65876 states to 65876 states and 111387 transitions. [2022-07-19 17:08:23,198 INFO L78 Accepts]: Start accepts. Automaton has 65876 states and 111387 transitions. Word has length 165 [2022-07-19 17:08:23,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:08:23,198 INFO L495 AbstractCegarLoop]: Abstraction has 65876 states and 111387 transitions. [2022-07-19 17:08:23,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-19 17:08:23,199 INFO L276 IsEmpty]: Start isEmpty. Operand 65876 states and 111387 transitions. [2022-07-19 17:08:23,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-19 17:08:23,251 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:08:23,251 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:08:23,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-19 17:08:23,251 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:08:23,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:08:23,251 INFO L85 PathProgramCache]: Analyzing trace with hash 125428287, now seen corresponding path program 1 times [2022-07-19 17:08:23,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:08:23,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58369550] [2022-07-19 17:08:23,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:08:23,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:08:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:23,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:08:23,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:23,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:08:23,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:23,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:08:23,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:23,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:08:23,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:23,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:08:23,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:23,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:08:23,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:23,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 17:08:23,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:23,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-19 17:08:23,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:23,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:08:23,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:23,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-19 17:08:23,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:23,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-19 17:08:23,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:23,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-19 17:08:23,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:23,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-19 17:08:23,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:23,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:08:23,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:23,342 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-19 17:08:23,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:08:23,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58369550] [2022-07-19 17:08:23,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58369550] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:08:23,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:08:23,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:08:23,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701509126] [2022-07-19 17:08:23,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:08:23,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:08:23,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:08:23,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:08:23,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:08:23,345 INFO L87 Difference]: Start difference. First operand 65876 states and 111387 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:08:29,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:08:29,242 INFO L93 Difference]: Finished difference Result 123748 states and 212880 transitions. [2022-07-19 17:08:29,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:08:29,243 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 147 [2022-07-19 17:08:29,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:08:29,667 INFO L225 Difference]: With dead ends: 123748 [2022-07-19 17:08:29,667 INFO L226 Difference]: Without dead ends: 123552 [2022-07-19 17:08:29,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:08:29,715 INFO L413 NwaCegarLoop]: 726 mSDtfsCounter, 1477 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 663 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 1532 SdHoareTripleChecker+Invalid, 1915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 663 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:08:29,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 1532 Invalid, 1915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [663 Valid, 1252 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-19 17:08:29,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123552 states. [2022-07-19 17:08:35,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123552 to 123364. [2022-07-19 17:08:36,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123364 states, 104726 states have (on average 1.6090751102877987) internal successors, (168512), 104734 states have internal predecessors, (168512), 18609 states have call successors, (18609), 24 states have call predecessors, (18609), 28 states have return successors, (20800), 18607 states have call predecessors, (20800), 18608 states have call successors, (20800) [2022-07-19 17:08:36,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123364 states to 123364 states and 207921 transitions. [2022-07-19 17:08:36,452 INFO L78 Accepts]: Start accepts. Automaton has 123364 states and 207921 transitions. Word has length 147 [2022-07-19 17:08:36,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:08:36,453 INFO L495 AbstractCegarLoop]: Abstraction has 123364 states and 207921 transitions. [2022-07-19 17:08:36,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:08:36,453 INFO L276 IsEmpty]: Start isEmpty. Operand 123364 states and 207921 transitions. [2022-07-19 17:08:36,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-19 17:08:36,506 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:08:36,506 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-07-19 17:08:36,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-19 17:08:36,506 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:08:36,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:08:36,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1275192871, now seen corresponding path program 1 times [2022-07-19 17:08:36,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:08:36,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097370405] [2022-07-19 17:08:36,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:08:36,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:08:36,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:36,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:08:36,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:36,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:08:36,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:36,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 17:08:36,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:36,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:08:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:36,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 17:08:36,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:36,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 17:08:36,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:36,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-19 17:08:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:36,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-19 17:08:36,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:36,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-19 17:08:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:36,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 17:08:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:36,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-19 17:08:36,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:36,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-19 17:08:36,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:36,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-19 17:08:36,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:36,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 17:08:36,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:36,709 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-19 17:08:36,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:08:36,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097370405] [2022-07-19 17:08:36,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097370405] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:08:36,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439796602] [2022-07-19 17:08:36,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:08:36,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:08:36,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:08:36,712 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:08:36,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-19 17:08:36,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:08:36,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 1244 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-19 17:08:36,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:08:37,864 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-19 17:08:37,864 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:08:37,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439796602] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:08:37,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:08:37,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [16] total 26 [2022-07-19 17:08:37,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277946779] [2022-07-19 17:08:37,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:08:37,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 17:08:37,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:08:37,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 17:08:37,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2022-07-19 17:08:37,868 INFO L87 Difference]: Start difference. First operand 123364 states and 207921 transitions. Second operand has 12 states, 11 states have (on average 10.090909090909092) internal successors, (111), 9 states have internal predecessors, (111), 5 states have call successors, (17), 5 states have call predecessors, (17), 6 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14)