./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec6_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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_spec6_product20.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 d4216ddf014ff953368f9c10444517e5ad475a960f2c91abb81cda95e6b2b3bf --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 00:50:06,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 00:50:06,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 00:50:06,397 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 00:50:06,397 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 00:50:06,400 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 00:50:06,401 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 00:50:06,405 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 00:50:06,407 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 00:50:06,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 00:50:06,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 00:50:06,415 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 00:50:06,416 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 00:50:06,417 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 00:50:06,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 00:50:06,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 00:50:06,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 00:50:06,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 00:50:06,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 00:50:06,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 00:50:06,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 00:50:06,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 00:50:06,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 00:50:06,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 00:50:06,434 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 00:50:06,436 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 00:50:06,437 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 00:50:06,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 00:50:06,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 00:50:06,439 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 00:50:06,439 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 00:50:06,440 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 00:50:06,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 00:50:06,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 00:50:06,444 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 00:50:06,444 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 00:50:06,445 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 00:50:06,445 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 00:50:06,445 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 00:50:06,446 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 00:50:06,447 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 00:50:06,449 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-28 00:50:06,476 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 00:50:06,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 00:50:06,477 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 00:50:06,477 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 00:50:06,478 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 00:50:06,478 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 00:50:06,479 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 00:50:06,479 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 00:50:06,480 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 00:50:06,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 00:50:06,480 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 00:50:06,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 00:50:06,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 00:50:06,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 00:50:06,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 00:50:06,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 00:50:06,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 00:50:06,482 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 00:50:06,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 00:50:06,482 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 00:50:06,482 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 00:50:06,482 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 00:50:06,483 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 00:50:06,483 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 00:50:06,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 00:50:06,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 00:50:06,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 00:50:06,484 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 00:50:06,484 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 00:50:06,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 00:50:06,484 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 00:50:06,484 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 00:50:06,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 00:50:06,485 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4216ddf014ff953368f9c10444517e5ad475a960f2c91abb81cda95e6b2b3bf [2021-12-28 00:50:06,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 00:50:06,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 00:50:06,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 00:50:06,789 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 00:50:06,797 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 00:50:06,799 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec6_product20.cil.c [2021-12-28 00:50:06,849 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/791ce89da/9fadefbca2004519aca6a31351221f4c/FLAG122ee185a [2021-12-28 00:50:07,318 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 00:50:07,318 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product20.cil.c [2021-12-28 00:50:07,332 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/791ce89da/9fadefbca2004519aca6a31351221f4c/FLAG122ee185a [2021-12-28 00:50:07,345 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/791ce89da/9fadefbca2004519aca6a31351221f4c [2021-12-28 00:50:07,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 00:50:07,348 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 00:50:07,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 00:50:07,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 00:50:07,352 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 00:50:07,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 12:50:07" (1/1) ... [2021-12-28 00:50:07,353 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f348580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:50:07, skipping insertion in model container [2021-12-28 00:50:07,353 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 12:50:07" (1/1) ... [2021-12-28 00:50:07,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 00:50:07,395 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 00:50:07,706 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_spec6_product20.cil.c[56376,56389] [2021-12-28 00:50:07,751 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 00:50:07,758 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 00:50:07,875 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_spec6_product20.cil.c[56376,56389] [2021-12-28 00:50:07,893 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 00:50:07,926 INFO L208 MainTranslator]: Completed translation [2021-12-28 00:50:07,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:50:07 WrapperNode [2021-12-28 00:50:07,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 00:50:07,928 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 00:50:07,928 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 00:50:07,928 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 00:50:07,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:50:07" (1/1) ... [2021-12-28 00:50:07,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:50:07" (1/1) ... [2021-12-28 00:50:07,990 INFO L137 Inliner]: procedures = 129, calls = 222, calls flagged for inlining = 54, calls inlined = 47, statements flattened = 942 [2021-12-28 00:50:07,990 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 00:50:07,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 00:50:07,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 00:50:07,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 00:50:07,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:50:07" (1/1) ... [2021-12-28 00:50:07,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:50:07" (1/1) ... [2021-12-28 00:50:08,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:50:07" (1/1) ... [2021-12-28 00:50:08,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:50:07" (1/1) ... [2021-12-28 00:50:08,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:50:07" (1/1) ... [2021-12-28 00:50:08,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:50:07" (1/1) ... [2021-12-28 00:50:08,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:50:07" (1/1) ... [2021-12-28 00:50:08,071 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 00:50:08,078 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 00:50:08,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 00:50:08,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 00:50:08,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:50:07" (1/1) ... [2021-12-28 00:50:08,084 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 00:50:08,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:50:08,109 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-28 00:50:08,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-28 00:50:08,149 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-12-28 00:50:08,149 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-12-28 00:50:08,149 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-28 00:50:08,149 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-28 00:50:08,149 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-12-28 00:50:08,149 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-12-28 00:50:08,149 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-28 00:50:08,149 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-28 00:50:08,149 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-12-28 00:50:08,149 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-12-28 00:50:08,149 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-28 00:50:08,149 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-28 00:50:08,150 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2021-12-28 00:50:08,150 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2021-12-28 00:50:08,150 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-28 00:50:08,150 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-28 00:50:08,150 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-28 00:50:08,150 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-28 00:50:08,150 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-12-28 00:50:08,150 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-12-28 00:50:08,150 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-28 00:50:08,150 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-28 00:50:08,150 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-28 00:50:08,150 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-12-28 00:50:08,150 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-12-28 00:50:08,150 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-28 00:50:08,150 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-28 00:50:08,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 00:50:08,151 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2021-12-28 00:50:08,151 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2021-12-28 00:50:08,151 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-28 00:50:08,151 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-28 00:50:08,151 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-28 00:50:08,151 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-28 00:50:08,151 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-28 00:50:08,151 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-28 00:50:08,151 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-28 00:50:08,151 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-28 00:50:08,151 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-28 00:50:08,151 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-28 00:50:08,151 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-12-28 00:50:08,151 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-12-28 00:50:08,151 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-28 00:50:08,151 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-28 00:50:08,151 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-28 00:50:08,151 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-28 00:50:08,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 00:50:08,152 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-28 00:50:08,152 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-28 00:50:08,152 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-28 00:50:08,152 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-28 00:50:08,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 00:50:08,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 00:50:08,337 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 00:50:08,346 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 00:50:08,939 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 00:50:08,950 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 00:50:08,951 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 00:50:08,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 12:50:08 BoogieIcfgContainer [2021-12-28 00:50:08,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 00:50:08,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 00:50:08,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 00:50:08,957 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 00:50:08,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 12:50:07" (1/3) ... [2021-12-28 00:50:08,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49ca3a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 12:50:08, skipping insertion in model container [2021-12-28 00:50:08,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:50:07" (2/3) ... [2021-12-28 00:50:08,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49ca3a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 12:50:08, skipping insertion in model container [2021-12-28 00:50:08,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 12:50:08" (3/3) ... [2021-12-28 00:50:08,960 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec6_product20.cil.c [2021-12-28 00:50:08,963 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 00:50:08,964 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 00:50:09,010 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 00:50:09,017 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 00:50:09,017 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 00:50:09,049 INFO L276 IsEmpty]: Start isEmpty. Operand has 377 states, 293 states have (on average 1.5665529010238908) internal successors, (459), 298 states have internal predecessors, (459), 58 states have call successors, (58), 24 states have call predecessors, (58), 24 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2021-12-28 00:50:09,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-28 00:50:09,070 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:50:09,071 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1] [2021-12-28 00:50:09,071 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:50:09,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:50:09,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1319087550, now seen corresponding path program 1 times [2021-12-28 00:50:09,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:50:09,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950149929] [2021-12-28 00:50:09,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:50:09,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:50:09,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:09,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:50:09,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:09,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:50:09,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:09,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:50:09,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:09,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 00:50:09,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:09,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 00:50:09,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:09,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 00:50:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:09,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 00:50:09,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:09,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 00:50:09,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:09,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 00:50:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:09,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 00:50:09,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:09,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 00:50:09,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:09,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-28 00:50:09,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:09,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-28 00:50:09,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:09,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 00:50:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:09,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-28 00:50:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:09,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-28 00:50:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:09,568 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-28 00:50:09,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:50:09,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950149929] [2021-12-28 00:50:09,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950149929] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:50:09,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9682520] [2021-12-28 00:50:09,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:50:09,570 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:50:09,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:50:09,572 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:50:09,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-28 00:50:09,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:09,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-28 00:50:09,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:50:09,990 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-28 00:50:09,990 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:50:09,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9682520] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:50:09,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:50:09,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-12-28 00:50:09,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839480655] [2021-12-28 00:50:09,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:50:09,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-28 00:50:09,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:50:10,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-28 00:50:10,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:50:10,016 INFO L87 Difference]: Start difference. First operand has 377 states, 293 states have (on average 1.5665529010238908) internal successors, (459), 298 states have internal predecessors, (459), 58 states have call successors, (58), 24 states have call predecessors, (58), 24 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 00:50:10,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:50:10,098 INFO L93 Difference]: Finished difference Result 561 states and 840 transitions. [2021-12-28 00:50:10,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-28 00:50:10,103 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 123 [2021-12-28 00:50:10,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:50:10,118 INFO L225 Difference]: With dead ends: 561 [2021-12-28 00:50:10,120 INFO L226 Difference]: Without dead ends: 370 [2021-12-28 00:50:10,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:50:10,132 INFO L933 BasicCegarLoop]: 571 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, 571 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:50:10,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:50:10,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2021-12-28 00:50:10,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2021-12-28 00:50:10,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 287 states have (on average 1.5609756097560976) internal successors, (448), 291 states have internal predecessors, (448), 58 states have call successors, (58), 24 states have call predecessors, (58), 24 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2021-12-28 00:50:10,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 563 transitions. [2021-12-28 00:50:10,199 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 563 transitions. Word has length 123 [2021-12-28 00:50:10,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:50:10,204 INFO L470 AbstractCegarLoop]: Abstraction has 370 states and 563 transitions. [2021-12-28 00:50:10,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 00:50:10,205 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 563 transitions. [2021-12-28 00:50:10,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-28 00:50:10,207 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:50:10,207 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1] [2021-12-28 00:50:10,228 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-28 00:50:10,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-12-28 00:50:10,426 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:50:10,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:50:10,427 INFO L85 PathProgramCache]: Analyzing trace with hash -2065856411, now seen corresponding path program 1 times [2021-12-28 00:50:10,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:50:10,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254352650] [2021-12-28 00:50:10,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:50:10,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:50:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:10,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:50:10,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:10,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:50:10,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:10,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:50:10,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:10,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 00:50:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:10,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 00:50:10,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:10,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 00:50:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:10,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-28 00:50:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:10,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 00:50:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:10,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 00:50:10,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:10,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 00:50:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:10,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 00:50:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:10,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 00:50:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:10,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-28 00:50:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:10,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 00:50:10,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:10,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-28 00:50:10,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:10,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 00:50:10,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:10,614 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-28 00:50:10,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:50:10,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254352650] [2021-12-28 00:50:10,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254352650] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:50:10,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545937757] [2021-12-28 00:50:10,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:50:10,617 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:50:10,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:50:10,632 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:50:10,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-28 00:50:10,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:10,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 1159 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-28 00:50:10,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:50:11,063 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-28 00:50:11,063 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:50:11,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545937757] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:50:11,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:50:11,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-28 00:50:11,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979611038] [2021-12-28 00:50:11,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:50:11,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 00:50:11,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:50:11,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 00:50:11,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:50:11,066 INFO L87 Difference]: Start difference. First operand 370 states and 563 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 00:50:11,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:50:11,110 INFO L93 Difference]: Finished difference Result 551 states and 818 transitions. [2021-12-28 00:50:11,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 00:50:11,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 124 [2021-12-28 00:50:11,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:50:11,113 INFO L225 Difference]: With dead ends: 551 [2021-12-28 00:50:11,113 INFO L226 Difference]: Without dead ends: 373 [2021-12-28 00:50:11,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:50:11,115 INFO L933 BasicCegarLoop]: 561 mSDtfsCounter, 1 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:50:11,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1120 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:50:11,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2021-12-28 00:50:11,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 372. [2021-12-28 00:50:11,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 289 states have (on average 1.5570934256055364) internal successors, (450), 293 states have internal predecessors, (450), 58 states have call successors, (58), 24 states have call predecessors, (58), 24 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2021-12-28 00:50:11,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 565 transitions. [2021-12-28 00:50:11,130 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 565 transitions. Word has length 124 [2021-12-28 00:50:11,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:50:11,130 INFO L470 AbstractCegarLoop]: Abstraction has 372 states and 565 transitions. [2021-12-28 00:50:11,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 00:50:11,130 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 565 transitions. [2021-12-28 00:50:11,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-28 00:50:11,132 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:50:11,132 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-28 00:50:11,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-28 00:50:11,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-12-28 00:50:11,351 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:50:11,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:50:11,351 INFO L85 PathProgramCache]: Analyzing trace with hash -311582633, now seen corresponding path program 1 times [2021-12-28 00:50:11,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:50:11,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985749142] [2021-12-28 00:50:11,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:50:11,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:50:11,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:11,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:50:11,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:11,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:50:11,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:11,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:50:11,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:11,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 00:50:11,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:11,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 00:50:11,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:11,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 00:50:11,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:11,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-28 00:50:11,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:11,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 00:50:11,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:11,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 00:50:11,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:11,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 00:50:11,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:11,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-28 00:50:11,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:11,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 00:50:11,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:11,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 00:50:11,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:11,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 00:50:11,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:11,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-28 00:50:11,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:11,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-28 00:50:11,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:11,466 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-28 00:50:11,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:50:11,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985749142] [2021-12-28 00:50:11,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985749142] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:50:11,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408097038] [2021-12-28 00:50:11,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:50:11,467 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:50:11,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:50:11,468 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:50:11,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-28 00:50:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:11,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 1186 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-28 00:50:11,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:50:11,845 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-28 00:50:11,847 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:50:11,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408097038] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:50:11,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:50:11,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-28 00:50:11,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789058058] [2021-12-28 00:50:11,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:50:11,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 00:50:11,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:50:11,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 00:50:11,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:50:11,850 INFO L87 Difference]: Start difference. First operand 372 states and 565 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 00:50:11,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:50:11,881 INFO L93 Difference]: Finished difference Result 792 states and 1222 transitions. [2021-12-28 00:50:11,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 00:50:11,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 133 [2021-12-28 00:50:11,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:50:11,883 INFO L225 Difference]: With dead ends: 792 [2021-12-28 00:50:11,884 INFO L226 Difference]: Without dead ends: 447 [2021-12-28 00:50:11,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:50:11,887 INFO L933 BasicCegarLoop]: 583 mSDtfsCounter, 134 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1100 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:50:11,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 1100 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:50:11,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2021-12-28 00:50:11,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 439. [2021-12-28 00:50:11,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 342 states have (on average 1.5760233918128654) internal successors, (539), 346 states have internal predecessors, (539), 72 states have call successors, (72), 24 states have call predecessors, (72), 24 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2021-12-28 00:50:11,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 682 transitions. [2021-12-28 00:50:11,904 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 682 transitions. Word has length 133 [2021-12-28 00:50:11,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:50:11,905 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 682 transitions. [2021-12-28 00:50:11,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 00:50:11,905 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 682 transitions. [2021-12-28 00:50:11,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-28 00:50:11,907 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:50:11,907 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-28 00:50:11,926 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-28 00:50:12,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:50:12,121 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:50:12,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:50:12,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1676584718, now seen corresponding path program 1 times [2021-12-28 00:50:12,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:50:12,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128878804] [2021-12-28 00:50:12,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:50:12,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:50:12,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:12,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:50:12,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:12,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:50:12,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:12,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:50:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:12,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 00:50:12,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:12,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 00:50:12,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:12,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 00:50:12,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:12,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 00:50:12,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:12,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-28 00:50:12,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:12,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 00:50:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:12,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-28 00:50:12,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:12,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 00:50:12,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:12,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-28 00:50:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:12,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-28 00:50:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:12,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 00:50:12,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:12,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 00:50:12,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:12,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-28 00:50:12,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:12,223 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-28 00:50:12,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:50:12,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128878804] [2021-12-28 00:50:12,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128878804] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:50:12,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746129862] [2021-12-28 00:50:12,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:50:12,223 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:50:12,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:50:12,240 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:50:12,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-28 00:50:12,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:12,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-28 00:50:12,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:50:12,640 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-28 00:50:12,640 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:50:12,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746129862] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:50:12,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:50:12,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-28 00:50:12,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660410813] [2021-12-28 00:50:12,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:50:12,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 00:50:12,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:50:12,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 00:50:12,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-28 00:50:12,642 INFO L87 Difference]: Start difference. First operand 439 states and 682 transitions. Second operand has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-28 00:50:12,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:50:12,682 INFO L93 Difference]: Finished difference Result 869 states and 1354 transitions. [2021-12-28 00:50:12,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 00:50:12,683 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 134 [2021-12-28 00:50:12,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:50:12,685 INFO L225 Difference]: With dead ends: 869 [2021-12-28 00:50:12,685 INFO L226 Difference]: Without dead ends: 441 [2021-12-28 00:50:12,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:50:12,686 INFO L933 BasicCegarLoop]: 554 mSDtfsCounter, 152 mSDsluCounter, 1488 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2042 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:50:12,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 2042 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:50:12,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2021-12-28 00:50:12,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2021-12-28 00:50:12,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 343 states have (on average 1.5743440233236152) internal successors, (540), 348 states have internal predecessors, (540), 72 states have call successors, (72), 24 states have call predecessors, (72), 25 states have return successors, (73), 70 states have call predecessors, (73), 71 states have call successors, (73) [2021-12-28 00:50:12,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 685 transitions. [2021-12-28 00:50:12,700 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 685 transitions. Word has length 134 [2021-12-28 00:50:12,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:50:12,700 INFO L470 AbstractCegarLoop]: Abstraction has 441 states and 685 transitions. [2021-12-28 00:50:12,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-28 00:50:12,700 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 685 transitions. [2021-12-28 00:50:12,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-28 00:50:12,702 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:50:12,702 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1] [2021-12-28 00:50:12,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-28 00:50:12,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:50:12,915 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:50:12,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:50:12,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1847707309, now seen corresponding path program 1 times [2021-12-28 00:50:12,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:50:12,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037544389] [2021-12-28 00:50:12,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:50:12,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:50:12,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:12,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:50:12,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:12,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:50:12,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:12,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:50:12,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:12,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:50:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:12,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-28 00:50:12,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-28 00:50:13,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-28 00:50:13,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-28 00:50:13,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 00:50:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 00:50:13,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 00:50:13,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-28 00:50:13,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-28 00:50:13,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-28 00:50:13,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-28 00:50:13,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 00:50:13,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,035 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-28 00:50:13,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:50:13,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037544389] [2021-12-28 00:50:13,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037544389] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:50:13,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485054202] [2021-12-28 00:50:13,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:50:13,035 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:50:13,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:50:13,036 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:50:13,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-28 00:50:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 1194 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-28 00:50:13,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:50:13,438 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-28 00:50:13,438 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:50:13,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485054202] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:50:13,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:50:13,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-28 00:50:13,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529587130] [2021-12-28 00:50:13,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:50:13,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 00:50:13,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:50:13,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 00:50:13,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-12-28 00:50:13,440 INFO L87 Difference]: Start difference. First operand 441 states and 685 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-28 00:50:13,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:50:13,492 INFO L93 Difference]: Finished difference Result 871 states and 1359 transitions. [2021-12-28 00:50:13,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 00:50:13,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 135 [2021-12-28 00:50:13,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:50:13,495 INFO L225 Difference]: With dead ends: 871 [2021-12-28 00:50:13,495 INFO L226 Difference]: Without dead ends: 443 [2021-12-28 00:50:13,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-12-28 00:50:13,497 INFO L933 BasicCegarLoop]: 552 mSDtfsCounter, 151 mSDsluCounter, 1479 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2031 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:50:13,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 2031 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:50:13,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2021-12-28 00:50:13,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2021-12-28 00:50:13,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 344 states have (on average 1.572674418604651) internal successors, (541), 350 states have internal predecessors, (541), 72 states have call successors, (72), 24 states have call predecessors, (72), 26 states have return successors, (78), 70 states have call predecessors, (78), 71 states have call successors, (78) [2021-12-28 00:50:13,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 691 transitions. [2021-12-28 00:50:13,513 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 691 transitions. Word has length 135 [2021-12-28 00:50:13,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:50:13,513 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 691 transitions. [2021-12-28 00:50:13,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-28 00:50:13,514 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 691 transitions. [2021-12-28 00:50:13,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-12-28 00:50:13,515 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:50:13,516 INFO L514 BasicCegarLoop]: 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, 1, 1, 1] [2021-12-28 00:50:13,549 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-28 00:50:13,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:50:13,751 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:50:13,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:50:13,751 INFO L85 PathProgramCache]: Analyzing trace with hash -34517267, now seen corresponding path program 1 times [2021-12-28 00:50:13,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:50:13,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089450142] [2021-12-28 00:50:13,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:50:13,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:50:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:50:13,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:50:13,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:50:13,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:50:13,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:50:13,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 00:50:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-28 00:50:13,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-28 00:50:13,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 00:50:13,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 00:50:13,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-28 00:50:13,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 00:50:13,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 00:50:13,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-28 00:50:13,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-28 00:50:13,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-28 00:50:13,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-28 00:50:13,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-28 00:50:13,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-28 00:50:13,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:13,856 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-28 00:50:13,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:50:13,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089450142] [2021-12-28 00:50:13,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089450142] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:50:13,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:50:13,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 00:50:13,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104592822] [2021-12-28 00:50:13,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:50:13,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 00:50:13,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:50:13,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 00:50:13,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:50:13,858 INFO L87 Difference]: Start difference. First operand 443 states and 691 transitions. Second operand has 9 states, 8 states have (on average 11.75) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-28 00:50:15,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:50:15,682 INFO L93 Difference]: Finished difference Result 976 states and 1544 transitions. [2021-12-28 00:50:15,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-28 00:50:15,682 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.75) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2021-12-28 00:50:15,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:50:15,687 INFO L225 Difference]: With dead ends: 976 [2021-12-28 00:50:15,687 INFO L226 Difference]: Without dead ends: 556 [2021-12-28 00:50:15,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-28 00:50:15,689 INFO L933 BasicCegarLoop]: 605 mSDtfsCounter, 1341 mSDsluCounter, 986 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 495 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1362 SdHoareTripleChecker+Valid, 1591 SdHoareTripleChecker+Invalid, 2470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 495 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-28 00:50:15,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1362 Valid, 1591 Invalid, 2470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [495 Valid, 1975 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-28 00:50:15,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2021-12-28 00:50:15,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 443. [2021-12-28 00:50:15,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 344 states have (on average 1.572674418604651) internal successors, (541), 350 states have internal predecessors, (541), 72 states have call successors, (72), 24 states have call predecessors, (72), 26 states have return successors, (77), 70 states have call predecessors, (77), 71 states have call successors, (77) [2021-12-28 00:50:15,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 690 transitions. [2021-12-28 00:50:15,726 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 690 transitions. Word has length 155 [2021-12-28 00:50:15,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:50:15,726 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 690 transitions. [2021-12-28 00:50:15,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.75) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-28 00:50:15,726 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 690 transitions. [2021-12-28 00:50:15,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-12-28 00:50:15,728 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:50:15,728 INFO L514 BasicCegarLoop]: 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, 1, 1, 1] [2021-12-28 00:50:15,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 00:50:15,729 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:50:15,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:50:15,729 INFO L85 PathProgramCache]: Analyzing trace with hash 820017456, now seen corresponding path program 2 times [2021-12-28 00:50:15,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:50:15,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951271747] [2021-12-28 00:50:15,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:50:15,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:50:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:15,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:50:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:15,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:50:15,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:15,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:50:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:15,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:50:15,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:15,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:50:15,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:15,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-28 00:50:15,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:15,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 00:50:15,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:15,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 00:50:15,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:15,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-28 00:50:15,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:15,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 00:50:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:15,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-28 00:50:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:15,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-28 00:50:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:15,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 00:50:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:15,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 00:50:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:15,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-28 00:50:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:15,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-28 00:50:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:15,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-28 00:50:15,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:15,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-28 00:50:15,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:15,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-28 00:50:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:15,824 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-28 00:50:15,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:50:15,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951271747] [2021-12-28 00:50:15,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951271747] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:50:15,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:50:15,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 00:50:15,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50073822] [2021-12-28 00:50:15,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:50:15,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 00:50:15,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:50:15,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 00:50:15,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:50:15,827 INFO L87 Difference]: Start difference. First operand 443 states and 690 transitions. Second operand has 9 states, 8 states have (on average 11.875) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-28 00:50:17,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:50:17,266 INFO L93 Difference]: Finished difference Result 978 states and 1547 transitions. [2021-12-28 00:50:17,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-28 00:50:17,266 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.875) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 156 [2021-12-28 00:50:17,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:50:17,269 INFO L225 Difference]: With dead ends: 978 [2021-12-28 00:50:17,269 INFO L226 Difference]: Without dead ends: 558 [2021-12-28 00:50:17,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-28 00:50:17,270 INFO L933 BasicCegarLoop]: 612 mSDtfsCounter, 1329 mSDsluCounter, 986 mSDsCounter, 0 mSdLazyCounter, 2004 mSolverCounterSat, 490 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1349 SdHoareTripleChecker+Valid, 1598 SdHoareTripleChecker+Invalid, 2494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 490 IncrementalHoareTripleChecker+Valid, 2004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-28 00:50:17,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1349 Valid, 1598 Invalid, 2494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [490 Valid, 2004 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-28 00:50:17,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2021-12-28 00:50:17,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 445. [2021-12-28 00:50:17,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 345 states have (on average 1.5710144927536231) internal successors, (542), 352 states have internal predecessors, (542), 72 states have call successors, (72), 24 states have call predecessors, (72), 27 states have return successors, (79), 70 states have call predecessors, (79), 71 states have call successors, (79) [2021-12-28 00:50:17,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 693 transitions. [2021-12-28 00:50:17,288 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 693 transitions. Word has length 156 [2021-12-28 00:50:17,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:50:17,288 INFO L470 AbstractCegarLoop]: Abstraction has 445 states and 693 transitions. [2021-12-28 00:50:17,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.875) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-28 00:50:17,288 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 693 transitions. [2021-12-28 00:50:17,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-28 00:50:17,290 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:50:17,290 INFO L514 BasicCegarLoop]: 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, 1, 1, 1] [2021-12-28 00:50:17,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-28 00:50:17,290 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:50:17,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:50:17,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1329272280, now seen corresponding path program 1 times [2021-12-28 00:50:17,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:50:17,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025995791] [2021-12-28 00:50:17,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:50:17,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:50:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:17,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:50:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:17,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:50:17,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:17,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:50:17,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:17,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:50:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:17,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:50:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:17,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:50:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:17,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 00:50:17,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:17,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 00:50:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:17,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 00:50:17,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:17,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-28 00:50:17,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:17,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 00:50:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:17,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 00:50:17,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:17,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-28 00:50:17,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:17,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-28 00:50:17,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:17,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-28 00:50:17,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:17,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 00:50:17,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:17,403 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-28 00:50:17,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:50:17,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025995791] [2021-12-28 00:50:17,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025995791] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:50:17,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:50:17,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-28 00:50:17,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970438233] [2021-12-28 00:50:17,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:50:17,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 00:50:17,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:50:17,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 00:50:17,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-28 00:50:17,405 INFO L87 Difference]: Start difference. First operand 445 states and 693 transitions. Second operand has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2021-12-28 00:50:19,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:50:19,420 INFO L93 Difference]: Finished difference Result 976 states and 1542 transitions. [2021-12-28 00:50:19,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-28 00:50:19,421 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 138 [2021-12-28 00:50:19,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:50:19,423 INFO L225 Difference]: With dead ends: 976 [2021-12-28 00:50:19,423 INFO L226 Difference]: Without dead ends: 558 [2021-12-28 00:50:19,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-28 00:50:19,425 INFO L933 BasicCegarLoop]: 595 mSDtfsCounter, 1473 mSDsluCounter, 1366 mSDsCounter, 0 mSdLazyCounter, 3610 mSolverCounterSat, 547 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1473 SdHoareTripleChecker+Valid, 1961 SdHoareTripleChecker+Invalid, 4157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 547 IncrementalHoareTripleChecker+Valid, 3610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-28 00:50:19,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1473 Valid, 1961 Invalid, 4157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [547 Valid, 3610 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-28 00:50:19,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2021-12-28 00:50:19,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 445. [2021-12-28 00:50:19,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 345 states have (on average 1.5710144927536231) internal successors, (542), 352 states have internal predecessors, (542), 72 states have call successors, (72), 24 states have call predecessors, (72), 27 states have return successors, (78), 70 states have call predecessors, (78), 71 states have call successors, (78) [2021-12-28 00:50:19,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 692 transitions. [2021-12-28 00:50:19,443 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 692 transitions. Word has length 138 [2021-12-28 00:50:19,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:50:19,443 INFO L470 AbstractCegarLoop]: Abstraction has 445 states and 692 transitions. [2021-12-28 00:50:19,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2021-12-28 00:50:19,443 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 692 transitions. [2021-12-28 00:50:19,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-12-28 00:50:19,445 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:50:19,445 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:50:19,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-28 00:50:19,445 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:50:19,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:50:19,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1553991790, now seen corresponding path program 2 times [2021-12-28 00:50:19,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:50:19,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579023214] [2021-12-28 00:50:19,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:50:19,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:50:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:19,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:50:19,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:19,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:50:19,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:19,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:50:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:19,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:50:19,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:19,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:50:19,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:19,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:50:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:19,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-28 00:50:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:19,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-28 00:50:19,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:19,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 00:50:19,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:19,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-28 00:50:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:19,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 00:50:19,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:19,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 00:50:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:19,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-28 00:50:19,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:19,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-28 00:50:19,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:19,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-28 00:50:19,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:19,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-28 00:50:19,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:19,564 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-28 00:50:19,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:50:19,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579023214] [2021-12-28 00:50:19,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579023214] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:50:19,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:50:19,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-28 00:50:19,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936941008] [2021-12-28 00:50:19,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:50:19,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 00:50:19,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:50:19,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 00:50:19,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-28 00:50:19,566 INFO L87 Difference]: Start difference. First operand 445 states and 692 transitions. Second operand has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2021-12-28 00:50:21,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:50:21,555 INFO L93 Difference]: Finished difference Result 978 states and 1548 transitions. [2021-12-28 00:50:21,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-28 00:50:21,556 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 139 [2021-12-28 00:50:21,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:50:21,558 INFO L225 Difference]: With dead ends: 978 [2021-12-28 00:50:21,559 INFO L226 Difference]: Without dead ends: 560 [2021-12-28 00:50:21,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-28 00:50:21,560 INFO L933 BasicCegarLoop]: 593 mSDtfsCounter, 1471 mSDsluCounter, 1366 mSDsCounter, 0 mSdLazyCounter, 3615 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1471 SdHoareTripleChecker+Valid, 1959 SdHoareTripleChecker+Invalid, 4163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 3615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-28 00:50:21,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1471 Valid, 1959 Invalid, 4163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 3615 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-28 00:50:21,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2021-12-28 00:50:21,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 447. [2021-12-28 00:50:21,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 346 states have (on average 1.569364161849711) internal successors, (543), 354 states have internal predecessors, (543), 72 states have call successors, (72), 24 states have call predecessors, (72), 28 states have return successors, (83), 70 states have call predecessors, (83), 71 states have call successors, (83) [2021-12-28 00:50:21,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 698 transitions. [2021-12-28 00:50:21,578 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 698 transitions. Word has length 139 [2021-12-28 00:50:21,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:50:21,579 INFO L470 AbstractCegarLoop]: Abstraction has 447 states and 698 transitions. [2021-12-28 00:50:21,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2021-12-28 00:50:21,579 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 698 transitions. [2021-12-28 00:50:21,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-12-28 00:50:21,580 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:50:21,581 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:50:21,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-28 00:50:21,581 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:50:21,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:50:21,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1990999639, now seen corresponding path program 1 times [2021-12-28 00:50:21,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:50:21,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359883850] [2021-12-28 00:50:21,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:50:21,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:50:21,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:21,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:50:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:21,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:50:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:21,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:50:21,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:21,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:50:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:21,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:50:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:21,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:50:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:21,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-28 00:50:21,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:21,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 00:50:21,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:21,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 00:50:21,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:21,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-28 00:50:21,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:21,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 00:50:21,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:21,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 00:50:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:21,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 00:50:21,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:21,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-28 00:50:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:21,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-28 00:50:21,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:21,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-28 00:50:21,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:21,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-28 00:50:21,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:21,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-28 00:50:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:21,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-28 00:50:21,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:21,704 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-12-28 00:50:21,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:50:21,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359883850] [2021-12-28 00:50:21,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359883850] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:50:21,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488055857] [2021-12-28 00:50:21,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:50:21,705 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:50:21,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:50:21,706 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:50:21,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-28 00:50:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:21,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 1280 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-28 00:50:21,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:50:22,180 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-28 00:50:22,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 00:50:22,464 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-28 00:50:22,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488055857] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 00:50:22,465 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 00:50:22,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2021-12-28 00:50:22,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401398950] [2021-12-28 00:50:22,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 00:50:22,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-28 00:50:22,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:50:22,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-28 00:50:22,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-12-28 00:50:22,466 INFO L87 Difference]: Start difference. First operand 447 states and 698 transitions. Second operand has 15 states, 14 states have (on average 11.642857142857142) internal successors, (163), 11 states have internal predecessors, (163), 4 states have call successors, (45), 6 states have call predecessors, (45), 3 states have return successors, (36), 3 states have call predecessors, (36), 4 states have call successors, (36) [2021-12-28 00:50:25,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:50:25,434 INFO L93 Difference]: Finished difference Result 1837 states and 3106 transitions. [2021-12-28 00:50:25,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-28 00:50:25,434 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.642857142857142) internal successors, (163), 11 states have internal predecessors, (163), 4 states have call successors, (45), 6 states have call predecessors, (45), 3 states have return successors, (36), 3 states have call predecessors, (36), 4 states have call successors, (36) Word has length 159 [2021-12-28 00:50:25,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:50:25,440 INFO L225 Difference]: With dead ends: 1837 [2021-12-28 00:50:25,440 INFO L226 Difference]: Without dead ends: 1421 [2021-12-28 00:50:25,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2021-12-28 00:50:25,442 INFO L933 BasicCegarLoop]: 812 mSDtfsCounter, 3644 mSDsluCounter, 3607 mSDsCounter, 0 mSdLazyCounter, 5215 mSolverCounterSat, 1391 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3646 SdHoareTripleChecker+Valid, 4419 SdHoareTripleChecker+Invalid, 6606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1391 IncrementalHoareTripleChecker+Valid, 5215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-28 00:50:25,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3646 Valid, 4419 Invalid, 6606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1391 Valid, 5215 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-28 00:50:25,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2021-12-28 00:50:25,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 865. [2021-12-28 00:50:25,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 685 states have (on average 1.618978102189781) internal successors, (1109), 693 states have internal predecessors, (1109), 151 states have call successors, (151), 24 states have call predecessors, (151), 28 states have return successors, (172), 149 states have call predecessors, (172), 150 states have call successors, (172) [2021-12-28 00:50:25,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1432 transitions. [2021-12-28 00:50:25,485 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1432 transitions. Word has length 159 [2021-12-28 00:50:25,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:50:25,486 INFO L470 AbstractCegarLoop]: Abstraction has 865 states and 1432 transitions. [2021-12-28 00:50:25,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.642857142857142) internal successors, (163), 11 states have internal predecessors, (163), 4 states have call successors, (45), 6 states have call predecessors, (45), 3 states have return successors, (36), 3 states have call predecessors, (36), 4 states have call successors, (36) [2021-12-28 00:50:25,486 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1432 transitions. [2021-12-28 00:50:25,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-12-28 00:50:25,489 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:50:25,489 INFO L514 BasicCegarLoop]: 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] [2021-12-28 00:50:25,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-28 00:50:25,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:50:25,707 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:50:25,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:50:25,708 INFO L85 PathProgramCache]: Analyzing trace with hash -159108113, now seen corresponding path program 1 times [2021-12-28 00:50:25,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:50:25,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108077616] [2021-12-28 00:50:25,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:50:25,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:50:25,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:25,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:50:25,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:25,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:50:25,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:25,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:50:25,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:25,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:50:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:25,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:50:25,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:25,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:50:25,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:25,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 00:50:25,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:25,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 00:50:25,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:25,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-28 00:50:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:25,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 00:50:25,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:25,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 00:50:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:25,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-28 00:50:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:25,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 00:50:25,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:25,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-28 00:50:25,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:25,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-28 00:50:25,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:25,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-28 00:50:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:25,839 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-28 00:50:25,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:50:25,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108077616] [2021-12-28 00:50:25,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108077616] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:50:25,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:50:25,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:50:25,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589912201] [2021-12-28 00:50:25,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:50:25,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:50:25,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:50:25,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:50:25,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:50:25,841 INFO L87 Difference]: Start difference. First operand 865 states and 1432 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 00:50:26,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:50:26,979 INFO L93 Difference]: Finished difference Result 2163 states and 3674 transitions. [2021-12-28 00:50:26,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:50:26,980 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 143 [2021-12-28 00:50:26,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:50:26,985 INFO L225 Difference]: With dead ends: 2163 [2021-12-28 00:50:26,985 INFO L226 Difference]: Without dead ends: 1376 [2021-12-28 00:50:26,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:50:26,988 INFO L933 BasicCegarLoop]: 646 mSDtfsCounter, 1334 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 541 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1353 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 1575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 541 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:50:26,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1353 Valid, 1444 Invalid, 1575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [541 Valid, 1034 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-28 00:50:26,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1376 states. [2021-12-28 00:50:27,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1376 to 1255. [2021-12-28 00:50:27,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 996 states have (on average 1.6355421686746987) internal successors, (1629), 1004 states have internal predecessors, (1629), 230 states have call successors, (230), 24 states have call predecessors, (230), 28 states have return successors, (261), 228 states have call predecessors, (261), 229 states have call successors, (261) [2021-12-28 00:50:27,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 2120 transitions. [2021-12-28 00:50:27,050 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 2120 transitions. Word has length 143 [2021-12-28 00:50:27,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:50:27,050 INFO L470 AbstractCegarLoop]: Abstraction has 1255 states and 2120 transitions. [2021-12-28 00:50:27,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 00:50:27,050 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 2120 transitions. [2021-12-28 00:50:27,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-12-28 00:50:27,057 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:50:27,057 INFO L514 BasicCegarLoop]: 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] [2021-12-28 00:50:27,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-28 00:50:27,057 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:50:27,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:50:27,058 INFO L85 PathProgramCache]: Analyzing trace with hash -658341585, now seen corresponding path program 1 times [2021-12-28 00:50:27,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:50:27,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137774259] [2021-12-28 00:50:27,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:50:27,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:50:27,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:27,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:50:27,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:27,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:50:27,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:27,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:50:27,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:27,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:50:27,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:27,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:50:27,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:27,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:50:27,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:27,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-28 00:50:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:27,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 00:50:27,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:27,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 00:50:27,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:27,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 00:50:27,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:27,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 00:50:27,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:27,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-28 00:50:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:27,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-28 00:50:27,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:27,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-28 00:50:27,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:27,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 00:50:27,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:27,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-28 00:50:27,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:27,154 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-28 00:50:27,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:50:27,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137774259] [2021-12-28 00:50:27,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137774259] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:50:27,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:50:27,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:50:27,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881218765] [2021-12-28 00:50:27,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:50:27,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:50:27,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:50:27,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:50:27,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:50:27,155 INFO L87 Difference]: Start difference. First operand 1255 states and 2120 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, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 00:50:28,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:50:28,215 INFO L93 Difference]: Finished difference Result 3137 states and 5383 transitions. [2021-12-28 00:50:28,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:50:28,215 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, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 144 [2021-12-28 00:50:28,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:50:28,225 INFO L225 Difference]: With dead ends: 3137 [2021-12-28 00:50:28,225 INFO L226 Difference]: Without dead ends: 2013 [2021-12-28 00:50:28,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:50:28,229 INFO L933 BasicCegarLoop]: 633 mSDtfsCounter, 1329 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 1004 mSolverCounterSat, 563 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1347 SdHoareTripleChecker+Valid, 1399 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 563 IncrementalHoareTripleChecker+Valid, 1004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-28 00:50:28,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1347 Valid, 1399 Invalid, 1567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [563 Valid, 1004 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-28 00:50:28,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2013 states. [2021-12-28 00:50:28,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2013 to 1892. [2021-12-28 00:50:28,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1892 states, 1514 states have (on average 1.6426684280052841) internal successors, (2487), 1522 states have internal predecessors, (2487), 349 states have call successors, (349), 24 states have call predecessors, (349), 28 states have return successors, (380), 347 states have call predecessors, (380), 348 states have call successors, (380) [2021-12-28 00:50:28,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1892 states to 1892 states and 3216 transitions. [2021-12-28 00:50:28,342 INFO L78 Accepts]: Start accepts. Automaton has 1892 states and 3216 transitions. Word has length 144 [2021-12-28 00:50:28,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:50:28,343 INFO L470 AbstractCegarLoop]: Abstraction has 1892 states and 3216 transitions. [2021-12-28 00:50:28,343 INFO L471 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, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 00:50:28,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1892 states and 3216 transitions. [2021-12-28 00:50:28,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-12-28 00:50:28,351 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:50:28,351 INFO L514 BasicCegarLoop]: 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] [2021-12-28 00:50:28,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-28 00:50:28,351 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:50:28,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:50:28,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1798639171, now seen corresponding path program 1 times [2021-12-28 00:50:28,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:50:28,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361400458] [2021-12-28 00:50:28,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:50:28,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:50:28,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:28,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:50:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:28,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:50:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:28,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:50:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:28,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:50:28,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:28,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:50:28,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:28,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:50:28,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:28,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 00:50:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:28,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 00:50:28,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:28,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 00:50:28,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:28,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 00:50:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:28,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 00:50:28,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:28,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-28 00:50:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:28,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-28 00:50:28,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:28,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-28 00:50:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:28,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-28 00:50:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:28,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-28 00:50:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:28,430 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-28 00:50:28,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:50:28,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361400458] [2021-12-28 00:50:28,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361400458] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:50:28,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:50:28,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:50:28,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127241701] [2021-12-28 00:50:28,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:50:28,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:50:28,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:50:28,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:50:28,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:50:28,432 INFO L87 Difference]: Start difference. First operand 1892 states and 3216 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 00:50:29,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:50:29,608 INFO L93 Difference]: Finished difference Result 4617 states and 7994 transitions. [2021-12-28 00:50:29,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:50:29,609 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 145 [2021-12-28 00:50:29,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:50:29,621 INFO L225 Difference]: With dead ends: 4617 [2021-12-28 00:50:29,621 INFO L226 Difference]: Without dead ends: 2991 [2021-12-28 00:50:29,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:50:29,626 INFO L933 BasicCegarLoop]: 636 mSDtfsCounter, 1327 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 555 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1345 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 1564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 555 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:50:29,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1345 Valid, 1401 Invalid, 1564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [555 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-28 00:50:29,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2991 states. [2021-12-28 00:50:29,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2991 to 2870. [2021-12-28 00:50:29,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2870 states, 2330 states have (on average 1.6484978540772532) internal successors, (3841), 2338 states have internal predecessors, (3841), 511 states have call successors, (511), 24 states have call predecessors, (511), 28 states have return successors, (558), 509 states have call predecessors, (558), 510 states have call successors, (558) [2021-12-28 00:50:29,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2870 states to 2870 states and 4910 transitions. [2021-12-28 00:50:29,764 INFO L78 Accepts]: Start accepts. Automaton has 2870 states and 4910 transitions. Word has length 145 [2021-12-28 00:50:29,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:50:29,764 INFO L470 AbstractCegarLoop]: Abstraction has 2870 states and 4910 transitions. [2021-12-28 00:50:29,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 00:50:29,764 INFO L276 IsEmpty]: Start isEmpty. Operand 2870 states and 4910 transitions. [2021-12-28 00:50:29,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-12-28 00:50:29,775 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:50:29,775 INFO L514 BasicCegarLoop]: 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] [2021-12-28 00:50:29,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-28 00:50:29,775 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:50:29,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:50:29,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1729968346, now seen corresponding path program 1 times [2021-12-28 00:50:29,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:50:29,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111720762] [2021-12-28 00:50:29,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:50:29,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:50:29,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:29,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:50:29,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:29,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:50:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:29,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:50:29,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:29,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:50:29,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:29,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:50:29,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:29,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:50:29,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:29,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 00:50:29,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:29,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-28 00:50:29,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:29,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 00:50:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:29,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 00:50:29,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:29,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 00:50:29,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:29,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 00:50:29,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:29,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-28 00:50:29,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:29,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-28 00:50:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:29,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-28 00:50:29,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:29,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-28 00:50:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:29,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-28 00:50:29,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:29,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-28 00:50:29,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:29,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-28 00:50:29,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:29,855 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-28 00:50:29,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:50:29,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111720762] [2021-12-28 00:50:29,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111720762] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:50:29,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:50:29,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:50:29,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299937206] [2021-12-28 00:50:29,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:50:29,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:50:29,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:50:29,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:50:29,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:50:29,857 INFO L87 Difference]: Start difference. First operand 2870 states and 4910 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-28 00:50:31,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:50:31,056 INFO L93 Difference]: Finished difference Result 6956 states and 12129 transitions. [2021-12-28 00:50:31,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:50:31,056 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 165 [2021-12-28 00:50:31,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:50:31,092 INFO L225 Difference]: With dead ends: 6956 [2021-12-28 00:50:31,092 INFO L226 Difference]: Without dead ends: 4571 [2021-12-28 00:50:31,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:50:31,097 INFO L933 BasicCegarLoop]: 637 mSDtfsCounter, 1319 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 556 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 1571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 556 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:50:31,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1337 Valid, 1402 Invalid, 1571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [556 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-28 00:50:31,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4571 states. [2021-12-28 00:50:31,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4571 to 4450. [2021-12-28 00:50:31,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4450 states, 3665 states have (on average 1.6526603001364257) internal successors, (6057), 3673 states have internal predecessors, (6057), 756 states have call successors, (756), 24 states have call predecessors, (756), 28 states have return successors, (829), 754 states have call predecessors, (829), 755 states have call successors, (829) [2021-12-28 00:50:31,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4450 states to 4450 states and 7642 transitions. [2021-12-28 00:50:31,306 INFO L78 Accepts]: Start accepts. Automaton has 4450 states and 7642 transitions. Word has length 165 [2021-12-28 00:50:31,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:50:31,306 INFO L470 AbstractCegarLoop]: Abstraction has 4450 states and 7642 transitions. [2021-12-28 00:50:31,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-28 00:50:31,307 INFO L276 IsEmpty]: Start isEmpty. Operand 4450 states and 7642 transitions. [2021-12-28 00:50:31,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-12-28 00:50:31,322 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:50:31,322 INFO L514 BasicCegarLoop]: 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, 1] [2021-12-28 00:50:31,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-28 00:50:31,322 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:50:31,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:50:31,323 INFO L85 PathProgramCache]: Analyzing trace with hash -452552879, now seen corresponding path program 1 times [2021-12-28 00:50:31,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:50:31,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115735960] [2021-12-28 00:50:31,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:50:31,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:50:31,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:31,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:50:31,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:31,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:50:31,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:31,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:50:31,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:31,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:50:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:31,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:50:31,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:31,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:50:31,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:31,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 00:50:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:31,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 00:50:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:31,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-28 00:50:31,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:31,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-28 00:50:31,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:31,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 00:50:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:31,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 00:50:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:31,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 00:50:31,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:31,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-28 00:50:31,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:31,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-28 00:50:31,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:31,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-28 00:50:31,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:31,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-28 00:50:31,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:31,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-28 00:50:31,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:31,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-28 00:50:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:31,439 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-28 00:50:31,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:50:31,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115735960] [2021-12-28 00:50:31,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115735960] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:50:31,439 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:50:31,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:50:31,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272630095] [2021-12-28 00:50:31,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:50:31,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:50:31,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:50:31,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:50:31,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:50:31,441 INFO L87 Difference]: Start difference. First operand 4450 states and 7642 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-28 00:50:32,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:50:32,755 INFO L93 Difference]: Finished difference Result 11127 states and 19458 transitions. [2021-12-28 00:50:32,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:50:32,755 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 166 [2021-12-28 00:50:32,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:50:32,785 INFO L225 Difference]: With dead ends: 11127 [2021-12-28 00:50:32,786 INFO L226 Difference]: Without dead ends: 7414 [2021-12-28 00:50:32,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:50:32,796 INFO L933 BasicCegarLoop]: 650 mSDtfsCounter, 1316 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 541 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 1588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 541 IncrementalHoareTripleChecker+Valid, 1047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:50:32,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1334 Valid, 1438 Invalid, 1588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [541 Valid, 1047 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-28 00:50:32,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7414 states. [2021-12-28 00:50:33,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7414 to 7293. [2021-12-28 00:50:33,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7293 states, 6015 states have (on average 1.6485453034081463) internal successors, (9916), 6023 states have internal predecessors, (9916), 1249 states have call successors, (1249), 24 states have call predecessors, (1249), 28 states have return successors, (1366), 1247 states have call predecessors, (1366), 1248 states have call successors, (1366) [2021-12-28 00:50:33,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7293 states to 7293 states and 12531 transitions. [2021-12-28 00:50:33,228 INFO L78 Accepts]: Start accepts. Automaton has 7293 states and 12531 transitions. Word has length 166 [2021-12-28 00:50:33,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:50:33,228 INFO L470 AbstractCegarLoop]: Abstraction has 7293 states and 12531 transitions. [2021-12-28 00:50:33,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-28 00:50:33,228 INFO L276 IsEmpty]: Start isEmpty. Operand 7293 states and 12531 transitions. [2021-12-28 00:50:33,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-12-28 00:50:33,254 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:50:33,254 INFO L514 BasicCegarLoop]: 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, 1, 1] [2021-12-28 00:50:33,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-28 00:50:33,254 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:50:33,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:50:33,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1128633898, now seen corresponding path program 1 times [2021-12-28 00:50:33,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:50:33,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361936567] [2021-12-28 00:50:33,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:50:33,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:50:33,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:33,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:50:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:33,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:50:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:33,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:50:33,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:33,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:50:33,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:33,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:50:33,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:33,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:50:33,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:33,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 00:50:33,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:33,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 00:50:33,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:33,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-28 00:50:33,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:33,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 00:50:33,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:33,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-28 00:50:33,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:33,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-28 00:50:33,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:33,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 00:50:33,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:33,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 00:50:33,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:33,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-28 00:50:33,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:33,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-28 00:50:33,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:33,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-28 00:50:33,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:33,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-28 00:50:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:33,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-28 00:50:33,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:33,348 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-28 00:50:33,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:50:33,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361936567] [2021-12-28 00:50:33,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361936567] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:50:33,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:50:33,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:50:33,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926555995] [2021-12-28 00:50:33,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:50:33,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:50:33,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:50:33,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:50:33,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:50:33,349 INFO L87 Difference]: Start difference. First operand 7293 states and 12531 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, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-28 00:50:34,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:50:34,875 INFO L93 Difference]: Finished difference Result 18547 states and 32422 transitions. [2021-12-28 00:50:34,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:50:34,875 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, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 167 [2021-12-28 00:50:34,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:50:34,916 INFO L225 Difference]: With dead ends: 18547 [2021-12-28 00:50:34,916 INFO L226 Difference]: Without dead ends: 12393 [2021-12-28 00:50:34,930 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:50:34,931 INFO L933 BasicCegarLoop]: 638 mSDtfsCounter, 1319 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 1408 SdHoareTripleChecker+Invalid, 1583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:50:34,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1337 Valid, 1408 Invalid, 1583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [553 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-28 00:50:34,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12393 states. [2021-12-28 00:50:35,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12393 to 12272. [2021-12-28 00:50:35,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12272 states, 10172 states have (on average 1.6483484073928432) internal successors, (16767), 10180 states have internal predecessors, (16767), 2071 states have call successors, (2071), 24 states have call predecessors, (2071), 28 states have return successors, (2266), 2069 states have call predecessors, (2266), 2070 states have call successors, (2266) [2021-12-28 00:50:35,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12272 states to 12272 states and 21104 transitions. [2021-12-28 00:50:35,481 INFO L78 Accepts]: Start accepts. Automaton has 12272 states and 21104 transitions. Word has length 167 [2021-12-28 00:50:35,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:50:35,481 INFO L470 AbstractCegarLoop]: Abstraction has 12272 states and 21104 transitions. [2021-12-28 00:50:35,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-28 00:50:35,481 INFO L276 IsEmpty]: Start isEmpty. Operand 12272 states and 21104 transitions. [2021-12-28 00:50:35,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-12-28 00:50:35,524 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:50:35,524 INFO L514 BasicCegarLoop]: 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, 1] [2021-12-28 00:50:35,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-28 00:50:35,525 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:50:35,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:50:35,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1234346235, now seen corresponding path program 1 times [2021-12-28 00:50:35,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:50:35,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710172960] [2021-12-28 00:50:35,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:50:35,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:50:35,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:35,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:50:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:35,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:50:35,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:35,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:50:35,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:35,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:50:35,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:35,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:50:35,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:35,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:50:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:35,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 00:50:35,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:35,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 00:50:35,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:35,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 00:50:35,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:35,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-28 00:50:35,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:35,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-28 00:50:35,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:35,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-28 00:50:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:35,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-28 00:50:35,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:35,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-28 00:50:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:35,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-28 00:50:35,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:35,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-28 00:50:35,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:35,594 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-28 00:50:35,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:50:35,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710172960] [2021-12-28 00:50:35,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710172960] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:50:35,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:50:35,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:50:35,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643864574] [2021-12-28 00:50:35,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:50:35,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:50:35,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:50:35,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:50:35,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:50:35,595 INFO L87 Difference]: Start difference. First operand 12272 states and 21104 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, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 00:50:37,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:50:37,434 INFO L93 Difference]: Finished difference Result 29505 states and 51282 transitions. [2021-12-28 00:50:37,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:50:37,435 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, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 149 [2021-12-28 00:50:37,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:50:37,493 INFO L225 Difference]: With dead ends: 29505 [2021-12-28 00:50:37,493 INFO L226 Difference]: Without dead ends: 19346 [2021-12-28 00:50:37,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:50:37,520 INFO L933 BasicCegarLoop]: 637 mSDtfsCounter, 1316 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 555 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1335 SdHoareTripleChecker+Valid, 1377 SdHoareTripleChecker+Invalid, 1571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 555 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:50:37,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1335 Valid, 1377 Invalid, 1571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [555 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-28 00:50:37,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19346 states. [2021-12-28 00:50:38,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19346 to 19225. [2021-12-28 00:50:38,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19225 states, 15922 states have (on average 1.6227232759703554) internal successors, (25837), 15930 states have internal predecessors, (25837), 3274 states have call successors, (3274), 24 states have call predecessors, (3274), 28 states have return successors, (3613), 3272 states have call predecessors, (3613), 3273 states have call successors, (3613) [2021-12-28 00:50:38,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19225 states to 19225 states and 32724 transitions. [2021-12-28 00:50:38,508 INFO L78 Accepts]: Start accepts. Automaton has 19225 states and 32724 transitions. Word has length 149 [2021-12-28 00:50:38,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:50:38,508 INFO L470 AbstractCegarLoop]: Abstraction has 19225 states and 32724 transitions. [2021-12-28 00:50:38,509 INFO L471 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, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 00:50:38,509 INFO L276 IsEmpty]: Start isEmpty. Operand 19225 states and 32724 transitions. [2021-12-28 00:50:38,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-12-28 00:50:38,546 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:50:38,546 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1] [2021-12-28 00:50:38,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-28 00:50:38,547 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:50:38,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:50:38,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1467090805, now seen corresponding path program 1 times [2021-12-28 00:50:38,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:50:38,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899285848] [2021-12-28 00:50:38,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:50:38,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:50:38,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:38,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:50:38,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:38,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:50:38,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:38,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:50:38,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:38,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:50:38,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:38,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:50:38,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:38,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:50:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:38,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 00:50:38,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:38,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-28 00:50:38,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:38,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-28 00:50:38,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:38,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-28 00:50:38,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:38,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 00:50:38,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:38,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-28 00:50:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:38,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 00:50:38,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:38,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-28 00:50:38,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:38,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-28 00:50:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:38,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-28 00:50:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:38,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-28 00:50:38,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:38,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-28 00:50:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:38,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-28 00:50:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:38,637 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-28 00:50:38,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:50:38,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899285848] [2021-12-28 00:50:38,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899285848] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:50:38,638 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:50:38,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:50:38,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528089238] [2021-12-28 00:50:38,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:50:38,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:50:38,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:50:38,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:50:38,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:50:38,640 INFO L87 Difference]: Start difference. First operand 19225 states and 32724 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, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-28 00:50:41,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:50:41,233 INFO L93 Difference]: Finished difference Result 50937 states and 88200 transitions. [2021-12-28 00:50:41,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:50:41,234 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, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 169 [2021-12-28 00:50:41,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:50:41,338 INFO L225 Difference]: With dead ends: 50937 [2021-12-28 00:50:41,338 INFO L226 Difference]: Without dead ends: 34467 [2021-12-28 00:50:41,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:50:41,378 INFO L933 BasicCegarLoop]: 640 mSDtfsCounter, 1312 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 1037 mSolverCounterSat, 545 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1330 SdHoareTripleChecker+Valid, 1406 SdHoareTripleChecker+Invalid, 1582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 545 IncrementalHoareTripleChecker+Valid, 1037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-28 00:50:41,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1330 Valid, 1406 Invalid, 1582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [545 Valid, 1037 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-28 00:50:41,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34467 states. [2021-12-28 00:50:42,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34467 to 34346. [2021-12-28 00:50:42,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34346 states, 28593 states have (on average 1.6193823663134335) internal successors, (46303), 28601 states have internal predecessors, (46303), 5724 states have call successors, (5724), 24 states have call predecessors, (5724), 28 states have return successors, (6337), 5722 states have call predecessors, (6337), 5723 states have call successors, (6337) [2021-12-28 00:50:43,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34346 states to 34346 states and 58364 transitions. [2021-12-28 00:50:43,070 INFO L78 Accepts]: Start accepts. Automaton has 34346 states and 58364 transitions. Word has length 169 [2021-12-28 00:50:43,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:50:43,070 INFO L470 AbstractCegarLoop]: Abstraction has 34346 states and 58364 transitions. [2021-12-28 00:50:43,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-28 00:50:43,071 INFO L276 IsEmpty]: Start isEmpty. Operand 34346 states and 58364 transitions. [2021-12-28 00:50:43,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-12-28 00:50:43,116 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:50:43,117 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1] [2021-12-28 00:50:43,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-28 00:50:43,117 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:50:43,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:50:43,117 INFO L85 PathProgramCache]: Analyzing trace with hash -785135819, now seen corresponding path program 1 times [2021-12-28 00:50:43,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:50:43,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866863448] [2021-12-28 00:50:43,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:50:43,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:50:43,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:43,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:50:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:43,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:50:43,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:43,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:50:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:43,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:50:43,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:43,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:50:43,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:43,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:50:43,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:43,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-28 00:50:43,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:43,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 00:50:43,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:43,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-28 00:50:43,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:43,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-28 00:50:43,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:43,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 00:50:43,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:43,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-28 00:50:43,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:43,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-28 00:50:43,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:43,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 00:50:43,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:43,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-28 00:50:43,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:43,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 00:50:43,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:43,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-28 00:50:43,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:43,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-28 00:50:43,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:43,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-28 00:50:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:43,213 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-28 00:50:43,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:50:43,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866863448] [2021-12-28 00:50:43,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866863448] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:50:43,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:50:43,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:50:43,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87603099] [2021-12-28 00:50:43,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:50:43,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:50:43,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:50:43,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:50:43,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:50:43,216 INFO L87 Difference]: Start difference. First operand 34346 states and 58364 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-28 00:50:46,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:50:46,923 INFO L93 Difference]: Finished difference Result 93809 states and 161599 transitions. [2021-12-28 00:50:46,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:50:46,924 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 170 [2021-12-28 00:50:46,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:50:47,133 INFO L225 Difference]: With dead ends: 93809 [2021-12-28 00:50:47,133 INFO L226 Difference]: Without dead ends: 63134 [2021-12-28 00:50:47,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:50:47,201 INFO L933 BasicCegarLoop]: 639 mSDtfsCounter, 1311 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 549 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1329 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 1574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 549 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:50:47,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1329 Valid, 1409 Invalid, 1574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [549 Valid, 1025 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-28 00:50:47,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63134 states. [2021-12-28 00:50:50,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63134 to 63013. [2021-12-28 00:50:50,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63013 states, 52747 states have (on average 1.6150302386865605) internal successors, (85188), 52755 states have internal predecessors, (85188), 10237 states have call successors, (10237), 24 states have call predecessors, (10237), 28 states have return successors, (11382), 10235 states have call predecessors, (11382), 10236 states have call successors, (11382) [2021-12-28 00:50:50,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63013 states to 63013 states and 106807 transitions. [2021-12-28 00:50:50,593 INFO L78 Accepts]: Start accepts. Automaton has 63013 states and 106807 transitions. Word has length 170 [2021-12-28 00:50:50,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:50:50,593 INFO L470 AbstractCegarLoop]: Abstraction has 63013 states and 106807 transitions. [2021-12-28 00:50:50,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-28 00:50:50,594 INFO L276 IsEmpty]: Start isEmpty. Operand 63013 states and 106807 transitions. [2021-12-28 00:50:50,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-12-28 00:50:50,940 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:50:50,940 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1] [2021-12-28 00:50:50,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-28 00:50:50,940 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:50:50,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:50:50,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1459602155, now seen corresponding path program 1 times [2021-12-28 00:50:50,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:50:50,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541651092] [2021-12-28 00:50:50,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:50:50,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:50:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:50,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:50:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:50,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:50:50,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:50,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:50:50,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:50,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:50:50,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:50,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:50:50,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:50,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:50:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:51,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 00:50:51,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:51,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-28 00:50:51,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:51,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 00:50:51,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:51,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 00:50:51,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:51,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 00:50:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:51,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-28 00:50:51,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:51,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-28 00:50:51,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:51,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-28 00:50:51,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:51,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-28 00:50:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:51,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-28 00:50:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:51,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-28 00:50:51,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:51,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-28 00:50:51,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:51,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-28 00:50:51,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:50:51,028 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-28 00:50:51,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:50:51,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541651092] [2021-12-28 00:50:51,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541651092] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:50:51,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:50:51,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:50:51,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042782692] [2021-12-28 00:50:51,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:50:51,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:50:51,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:50:51,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:50:51,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:50:51,030 INFO L87 Difference]: Start difference. First operand 63013 states and 106807 transitions. Second operand has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-28 00:50:56,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:50:56,275 INFO L93 Difference]: Finished difference Result 118185 states and 203976 transitions. [2021-12-28 00:50:56,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:50:56,275 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 171 [2021-12-28 00:50:56,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:50:56,759 INFO L225 Difference]: With dead ends: 118185 [2021-12-28 00:50:56,759 INFO L226 Difference]: Without dead ends: 118007 [2021-12-28 00:50:56,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:50:56,807 INFO L933 BasicCegarLoop]: 647 mSDtfsCounter, 1305 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 555 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1323 SdHoareTripleChecker+Valid, 1413 SdHoareTripleChecker+Invalid, 1598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 555 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-28 00:50:56,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1323 Valid, 1413 Invalid, 1598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [555 Valid, 1043 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-28 00:50:56,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118007 states. [2021-12-28 00:51:02,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118007 to 117886. [2021-12-28 00:51:02,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117886 states, 99252 states have (on average 1.6095998065530166) internal successors, (159756), 99260 states have internal predecessors, (159756), 18605 states have call successors, (18605), 24 states have call predecessors, (18605), 28 states have return successors, (20796), 18603 states have call predecessors, (20796), 18604 states have call successors, (20796) [2021-12-28 00:51:03,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117886 states to 117886 states and 199157 transitions. [2021-12-28 00:51:03,186 INFO L78 Accepts]: Start accepts. Automaton has 117886 states and 199157 transitions. Word has length 171 [2021-12-28 00:51:03,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:51:03,187 INFO L470 AbstractCegarLoop]: Abstraction has 117886 states and 199157 transitions. [2021-12-28 00:51:03,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-28 00:51:03,187 INFO L276 IsEmpty]: Start isEmpty. Operand 117886 states and 199157 transitions. [2021-12-28 00:51:03,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-12-28 00:51:03,298 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:51:03,298 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:51:03,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-28 00:51:03,299 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:51:03,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:51:03,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1307139350, now seen corresponding path program 1 times [2021-12-28 00:51:03,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:51:03,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46776656] [2021-12-28 00:51:03,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:51:03,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:51:03,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:51:03,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:51:03,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:51:03,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:51:03,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:51:03,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:51:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:51:03,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:51:03,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:51:03,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:51:03,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:51:03,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:51:03,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:51:03,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 00:51:03,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:51:03,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 00:51:03,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:51:03,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 00:51:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:51:03,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 00:51:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:51:03,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 00:51:03,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:51:03,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-28 00:51:03,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:51:03,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-28 00:51:03,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:51:03,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-28 00:51:03,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:51:03,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-28 00:51:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:51:03,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-28 00:51:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:51:03,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-28 00:51:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:51:03,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-28 00:51:03,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:51:03,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-28 00:51:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:51:03,401 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-28 00:51:03,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:51:03,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46776656] [2021-12-28 00:51:03,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46776656] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:51:03,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:51:03,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-28 00:51:03,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174088005] [2021-12-28 00:51:03,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:51:03,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-28 00:51:03,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:51:03,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-28 00:51:03,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:51:03,403 INFO L87 Difference]: Start difference. First operand 117886 states and 199157 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (22), 7 states have call predecessors, (22), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19)