./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec4_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec4_product32.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 5711b4c0ea669ac051f0ad97dbc3a1a473a1622b7d95c937325001ba5ca1073b --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 00:52:16,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 00:52:16,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 00:52:17,003 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 00:52:17,004 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 00:52:17,005 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 00:52:17,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 00:52:17,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 00:52:17,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 00:52:17,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 00:52:17,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 00:52:17,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 00:52:17,023 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 00:52:17,028 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 00:52:17,029 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 00:52:17,030 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 00:52:17,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 00:52:17,032 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 00:52:17,033 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 00:52:17,035 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 00:52:17,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 00:52:17,040 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 00:52:17,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 00:52:17,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 00:52:17,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 00:52:17,053 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 00:52:17,053 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 00:52:17,055 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 00:52:17,055 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 00:52:17,056 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 00:52:17,056 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 00:52:17,057 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 00:52:17,059 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 00:52:17,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 00:52:17,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 00:52:17,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 00:52:17,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 00:52:17,061 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 00:52:17,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 00:52:17,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 00:52:17,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 00:52:17,066 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 00:52:17,098 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 00:52:17,098 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 00:52:17,099 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 00:52:17,099 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 00:52:17,100 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 00:52:17,100 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 00:52:17,100 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 00:52:17,101 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 00:52:17,101 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 00:52:17,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 00:52:17,101 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 00:52:17,101 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 00:52:17,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 00:52:17,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 00:52:17,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 00:52:17,102 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 00:52:17,102 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 00:52:17,102 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 00:52:17,103 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 00:52:17,103 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 00:52:17,103 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 00:52:17,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 00:52:17,103 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 00:52:17,104 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 00:52:17,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 00:52:17,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 00:52:17,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 00:52:17,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 00:52:17,105 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 00:52:17,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 00:52:17,105 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 00:52:17,105 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 00:52:17,105 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 00:52:17,105 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 00:52:17,106 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5711b4c0ea669ac051f0ad97dbc3a1a473a1622b7d95c937325001ba5ca1073b [2021-12-16 00:52:17,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 00:52:17,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 00:52:17,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 00:52:17,361 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 00:52:17,362 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 00:52:17,363 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec4_product32.cil.c [2021-12-16 00:52:17,436 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51d4663b5/4bc266b0678e48fc82da3cb193b9dfe5/FLAG46c26863a [2021-12-16 00:52:17,992 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 00:52:17,992 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec4_product32.cil.c [2021-12-16 00:52:18,012 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51d4663b5/4bc266b0678e48fc82da3cb193b9dfe5/FLAG46c26863a [2021-12-16 00:52:18,436 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51d4663b5/4bc266b0678e48fc82da3cb193b9dfe5 [2021-12-16 00:52:18,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 00:52:18,440 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 00:52:18,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 00:52:18,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 00:52:18,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 00:52:18,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:52:18" (1/1) ... [2021-12-16 00:52:18,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cb9aee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:52:18, skipping insertion in model container [2021-12-16 00:52:18,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:52:18" (1/1) ... [2021-12-16 00:52:18,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 00:52:18,522 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 00:52:18,874 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_spec4_product32.cil.c[32699,32712] [2021-12-16 00:52:19,048 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 00:52:19,060 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 00:52:19,112 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_spec4_product32.cil.c[32699,32712] [2021-12-16 00:52:19,149 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 00:52:19,174 INFO L208 MainTranslator]: Completed translation [2021-12-16 00:52:19,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:52:19 WrapperNode [2021-12-16 00:52:19,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 00:52:19,175 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 00:52:19,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 00:52:19,176 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 00:52:19,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:52:19" (1/1) ... [2021-12-16 00:52:19,224 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:52:19" (1/1) ... [2021-12-16 00:52:19,292 INFO L137 Inliner]: procedures = 134, calls = 237, calls flagged for inlining = 61, calls inlined = 53, statements flattened = 987 [2021-12-16 00:52:19,293 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 00:52:19,294 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 00:52:19,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 00:52:19,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 00:52:19,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:52:19" (1/1) ... [2021-12-16 00:52:19,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:52:19" (1/1) ... [2021-12-16 00:52:19,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:52:19" (1/1) ... [2021-12-16 00:52:19,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:52:19" (1/1) ... [2021-12-16 00:52:19,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:52:19" (1/1) ... [2021-12-16 00:52:19,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:52:19" (1/1) ... [2021-12-16 00:52:19,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:52:19" (1/1) ... [2021-12-16 00:52:19,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 00:52:19,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 00:52:19,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 00:52:19,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 00:52:19,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:52:19" (1/1) ... [2021-12-16 00:52:19,414 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 00:52:19,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:52:19,453 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) [2021-12-16 00:52:19,479 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 [2021-12-16 00:52:19,495 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-12-16 00:52:19,495 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-12-16 00:52:19,496 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-16 00:52:19,496 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-16 00:52:19,496 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-12-16 00:52:19,496 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-12-16 00:52:19,496 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-16 00:52:19,498 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-16 00:52:19,498 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-12-16 00:52:19,498 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-12-16 00:52:19,498 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-16 00:52:19,498 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-16 00:52:19,498 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2021-12-16 00:52:19,498 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2021-12-16 00:52:19,499 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-16 00:52:19,499 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-16 00:52:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-12-16 00:52:19,500 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-12-16 00:52:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-16 00:52:19,500 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-16 00:52:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-12-16 00:52:19,500 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-12-16 00:52:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-12-16 00:52:19,501 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-12-16 00:52:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-16 00:52:19,501 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-16 00:52:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-16 00:52:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-12-16 00:52:19,501 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-12-16 00:52:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-16 00:52:19,502 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-16 00:52:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 00:52:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-12-16 00:52:19,502 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-12-16 00:52:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2021-12-16 00:52:19,503 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2021-12-16 00:52:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-16 00:52:19,503 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-16 00:52:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-16 00:52:19,503 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-16 00:52:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-16 00:52:19,504 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-16 00:52:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-16 00:52:19,504 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-16 00:52:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2021-12-16 00:52:19,504 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2021-12-16 00:52:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-16 00:52:19,505 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-16 00:52:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-12-16 00:52:19,505 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-12-16 00:52:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-16 00:52:19,506 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-16 00:52:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-16 00:52:19,506 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-16 00:52:19,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 00:52:19,507 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-16 00:52:19,508 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-16 00:52:19,508 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-16 00:52:19,508 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-16 00:52:19,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 00:52:19,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 00:52:19,788 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 00:52:19,790 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 00:52:20,400 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 00:52:20,415 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 00:52:20,418 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-16 00:52:20,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:52:20 BoogieIcfgContainer [2021-12-16 00:52:20,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 00:52:20,441 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 00:52:20,441 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 00:52:20,445 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 00:52:20,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:52:18" (1/3) ... [2021-12-16 00:52:20,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72f2fe1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:52:20, skipping insertion in model container [2021-12-16 00:52:20,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:52:19" (2/3) ... [2021-12-16 00:52:20,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72f2fe1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:52:20, skipping insertion in model container [2021-12-16 00:52:20,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:52:20" (3/3) ... [2021-12-16 00:52:20,448 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec4_product32.cil.c [2021-12-16 00:52:20,453 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 00:52:20,453 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 00:52:20,500 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 00:52:20,508 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 [2021-12-16 00:52:20,509 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 00:52:20,550 INFO L276 IsEmpty]: Start isEmpty. Operand has 425 states, 330 states have (on average 1.5515151515151515) internal successors, (512), 335 states have internal predecessors, (512), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2021-12-16 00:52:20,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-16 00:52:20,569 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:20,570 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] [2021-12-16 00:52:20,571 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:20,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:20,576 INFO L85 PathProgramCache]: Analyzing trace with hash -302497054, now seen corresponding path program 1 times [2021-12-16 00:52:20,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:20,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155017162] [2021-12-16 00:52:20,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:20,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:20,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:20,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:20,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:20,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:20,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:20,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-16 00:52:20,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:20,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-16 00:52:21,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 00:52:21,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 00:52:21,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-16 00:52:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 00:52:21,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 00:52:21,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-16 00:52:21,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-16 00:52:21,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-16 00:52:21,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-16 00:52:21,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-16 00:52:21,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,113 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-16 00:52:21,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:21,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155017162] [2021-12-16 00:52:21,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155017162] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 00:52:21,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317997979] [2021-12-16 00:52:21,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:21,123 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:52:21,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:52:21,128 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) [2021-12-16 00:52:21,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-16 00:52:21,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-16 00:52:21,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 00:52:21,696 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-16 00:52:21,697 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 00:52:21,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1317997979] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:21,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 00:52:21,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-12-16 00:52:21,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700787443] [2021-12-16 00:52:21,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:21,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-16 00:52:21,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:21,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-16 00:52:21,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 00:52:21,730 INFO L87 Difference]: Start difference. First operand has 425 states, 330 states have (on average 1.5515151515151515) internal successors, (512), 335 states have internal predecessors, (512), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) Second operand has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-16 00:52:21,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:21,793 INFO L93 Difference]: Finished difference Result 657 states and 974 transitions. [2021-12-16 00:52:21,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-16 00:52:21,795 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 116 [2021-12-16 00:52:21,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:21,808 INFO L225 Difference]: With dead ends: 657 [2021-12-16 00:52:21,808 INFO L226 Difference]: Without dead ends: 418 [2021-12-16 00:52:21,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 00:52:21,827 INFO L933 BasicCegarLoop]: 638 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, 638 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 [2021-12-16 00:52:21,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 00:52:21,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2021-12-16 00:52:21,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2021-12-16 00:52:21,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 324 states have (on average 1.5462962962962963) internal successors, (501), 328 states have internal predecessors, (501), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2021-12-16 00:52:21,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 630 transitions. [2021-12-16 00:52:21,896 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 630 transitions. Word has length 116 [2021-12-16 00:52:21,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:21,898 INFO L470 AbstractCegarLoop]: Abstraction has 418 states and 630 transitions. [2021-12-16 00:52:21,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-16 00:52:21,899 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 630 transitions. [2021-12-16 00:52:21,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-16 00:52:21,906 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:21,906 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] [2021-12-16 00:52:21,927 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-16 00:52:22,114 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 [2021-12-16 00:52:22,114 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:22,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:22,115 INFO L85 PathProgramCache]: Analyzing trace with hash -825151926, now seen corresponding path program 1 times [2021-12-16 00:52:22,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:22,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588156081] [2021-12-16 00:52:22,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:22,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:22,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:22,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:22,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:22,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:22,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:22,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:22,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:22,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-16 00:52:22,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:22,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-16 00:52:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:22,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 00:52:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:22,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-16 00:52:22,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:22,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 00:52:22,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:22,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 00:52:22,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:22,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-16 00:52:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:22,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-16 00:52:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:22,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-16 00:52:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:22,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-16 00:52:22,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:22,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 00:52:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:22,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-16 00:52:22,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:22,313 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-16 00:52:22,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:22,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588156081] [2021-12-16 00:52:22,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588156081] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 00:52:22,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274720669] [2021-12-16 00:52:22,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:22,314 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:52:22,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:52:22,315 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) [2021-12-16 00:52:22,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-16 00:52:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:22,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 1153 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 00:52:22,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 00:52:22,864 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-16 00:52:22,865 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 00:52:22,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274720669] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:22,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 00:52:22,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-16 00:52:22,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502895378] [2021-12-16 00:52:22,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:22,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 00:52:22,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:22,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 00:52:22,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-16 00:52:22,880 INFO L87 Difference]: Start difference. First operand 418 states and 630 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-16 00:52:22,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:22,957 INFO L93 Difference]: Finished difference Result 647 states and 952 transitions. [2021-12-16 00:52:22,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 00:52:22,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 117 [2021-12-16 00:52:22,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:22,964 INFO L225 Difference]: With dead ends: 647 [2021-12-16 00:52:22,964 INFO L226 Difference]: Without dead ends: 421 [2021-12-16 00:52:22,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-16 00:52:22,970 INFO L933 BasicCegarLoop]: 628 mSDtfsCounter, 1 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1254 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 [2021-12-16 00:52:22,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1254 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 00:52:22,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-12-16 00:52:22,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 420. [2021-12-16 00:52:22,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 326 states have (on average 1.5429447852760736) internal successors, (503), 330 states have internal predecessors, (503), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2021-12-16 00:52:23,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 632 transitions. [2021-12-16 00:52:23,008 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 632 transitions. Word has length 117 [2021-12-16 00:52:23,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:23,011 INFO L470 AbstractCegarLoop]: Abstraction has 420 states and 632 transitions. [2021-12-16 00:52:23,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-16 00:52:23,012 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 632 transitions. [2021-12-16 00:52:23,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-12-16 00:52:23,019 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:23,019 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] [2021-12-16 00:52:23,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-16 00:52:23,239 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 [2021-12-16 00:52:23,240 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:23,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:23,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1143586185, now seen corresponding path program 1 times [2021-12-16 00:52:23,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:23,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563045090] [2021-12-16 00:52:23,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:23,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:23,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:23,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-16 00:52:23,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-16 00:52:23,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 00:52:23,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-16 00:52:23,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 00:52:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-16 00:52:23,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-16 00:52:23,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-16 00:52:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-16 00:52:23,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 00:52:23,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-16 00:52:23,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-16 00:52:23,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,433 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-16 00:52:23,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:23,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563045090] [2021-12-16 00:52:23,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563045090] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 00:52:23,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220618445] [2021-12-16 00:52:23,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:23,435 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:52:23,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:52:23,440 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) [2021-12-16 00:52:23,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-16 00:52:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 1180 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-16 00:52:23,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 00:52:23,935 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-16 00:52:23,935 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 00:52:23,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220618445] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:23,935 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 00:52:23,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-16 00:52:23,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958062579] [2021-12-16 00:52:23,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:23,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 00:52:23,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:23,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 00:52:23,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-16 00:52:23,939 INFO L87 Difference]: Start difference. First operand 420 states and 632 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-16 00:52:24,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:24,002 INFO L93 Difference]: Finished difference Result 888 states and 1356 transitions. [2021-12-16 00:52:24,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 00:52:24,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 126 [2021-12-16 00:52:24,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:24,008 INFO L225 Difference]: With dead ends: 888 [2021-12-16 00:52:24,008 INFO L226 Difference]: Without dead ends: 495 [2021-12-16 00:52:24,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-16 00:52:24,013 INFO L933 BasicCegarLoop]: 657 mSDtfsCounter, 134 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1242 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 [2021-12-16 00:52:24,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 1242 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 00:52:24,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2021-12-16 00:52:24,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 487. [2021-12-16 00:52:24,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 379 states have (on average 1.562005277044855) internal successors, (592), 383 states have internal predecessors, (592), 79 states have call successors, (79), 28 states have call predecessors, (79), 28 states have return successors, (78), 77 states have call predecessors, (78), 78 states have call successors, (78) [2021-12-16 00:52:24,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 749 transitions. [2021-12-16 00:52:24,061 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 749 transitions. Word has length 126 [2021-12-16 00:52:24,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:24,061 INFO L470 AbstractCegarLoop]: Abstraction has 487 states and 749 transitions. [2021-12-16 00:52:24,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-16 00:52:24,064 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 749 transitions. [2021-12-16 00:52:24,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-16 00:52:24,069 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:24,069 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] [2021-12-16 00:52:24,095 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-16 00:52:24,283 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 [2021-12-16 00:52:24,284 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:24,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:24,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1449405, now seen corresponding path program 1 times [2021-12-16 00:52:24,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:24,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174068750] [2021-12-16 00:52:24,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:24,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:24,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:24,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:24,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:24,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:24,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:24,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:24,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:24,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-16 00:52:24,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:24,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-16 00:52:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:24,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 00:52:24,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:24,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 00:52:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:24,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-16 00:52:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:24,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 00:52:24,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:24,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 00:52:24,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:24,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-16 00:52:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:24,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-16 00:52:24,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:24,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 00:52:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:24,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-16 00:52:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:24,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-16 00:52:24,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:24,425 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-16 00:52:24,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:24,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174068750] [2021-12-16 00:52:24,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174068750] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 00:52:24,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411062036] [2021-12-16 00:52:24,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:24,426 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:52:24,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:52:24,427 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) [2021-12-16 00:52:24,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-16 00:52:24,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:24,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 1187 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-16 00:52:24,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 00:52:24,917 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-16 00:52:24,918 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 00:52:24,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411062036] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:24,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 00:52:24,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-16 00:52:24,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851435099] [2021-12-16 00:52:24,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:24,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 00:52:24,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:24,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 00:52:24,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-16 00:52:24,920 INFO L87 Difference]: Start difference. First operand 487 states and 749 transitions. Second operand has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-16 00:52:24,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:24,979 INFO L93 Difference]: Finished difference Result 965 states and 1488 transitions. [2021-12-16 00:52:24,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 00:52:24,980 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 127 [2021-12-16 00:52:24,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:24,984 INFO L225 Difference]: With dead ends: 965 [2021-12-16 00:52:24,984 INFO L226 Difference]: Without dead ends: 489 [2021-12-16 00:52:24,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:52:24,987 INFO L933 BasicCegarLoop]: 621 mSDtfsCounter, 152 mSDsluCounter, 1689 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2310 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 [2021-12-16 00:52:24,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 2310 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 00:52:24,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2021-12-16 00:52:25,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2021-12-16 00:52:25,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 380 states have (on average 1.5605263157894738) internal successors, (593), 385 states have internal predecessors, (593), 79 states have call successors, (79), 28 states have call predecessors, (79), 29 states have return successors, (80), 77 states have call predecessors, (80), 78 states have call successors, (80) [2021-12-16 00:52:25,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 752 transitions. [2021-12-16 00:52:25,008 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 752 transitions. Word has length 127 [2021-12-16 00:52:25,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:25,008 INFO L470 AbstractCegarLoop]: Abstraction has 489 states and 752 transitions. [2021-12-16 00:52:25,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-16 00:52:25,009 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 752 transitions. [2021-12-16 00:52:25,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-16 00:52:25,011 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:25,012 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] [2021-12-16 00:52:25,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-16 00:52:25,227 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 [2021-12-16 00:52:25,227 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:25,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:25,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1697933857, now seen corresponding path program 1 times [2021-12-16 00:52:25,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:25,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546970149] [2021-12-16 00:52:25,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:25,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:25,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:25,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:25,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:25,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:25,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:25,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:25,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-16 00:52:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:25,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-16 00:52:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:25,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-16 00:52:25,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:25,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-16 00:52:25,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:25,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-16 00:52:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:25,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-16 00:52:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:25,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-16 00:52:25,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:25,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-16 00:52:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:25,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-16 00:52:25,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:25,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 00:52:25,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:25,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-16 00:52:25,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:25,442 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-16 00:52:25,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:25,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546970149] [2021-12-16 00:52:25,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546970149] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 00:52:25,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803737441] [2021-12-16 00:52:25,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:25,444 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:52:25,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:52:25,448 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) [2021-12-16 00:52:25,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-16 00:52:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:25,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 1188 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-16 00:52:25,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 00:52:25,913 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-16 00:52:25,913 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 00:52:25,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803737441] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:25,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 00:52:25,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-16 00:52:25,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796495516] [2021-12-16 00:52:25,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:25,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 00:52:25,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:25,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 00:52:25,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-12-16 00:52:25,915 INFO L87 Difference]: Start difference. First operand 489 states and 752 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-16 00:52:25,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:25,980 INFO L93 Difference]: Finished difference Result 967 states and 1493 transitions. [2021-12-16 00:52:25,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 00:52:25,981 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 128 [2021-12-16 00:52:25,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:25,984 INFO L225 Difference]: With dead ends: 967 [2021-12-16 00:52:25,985 INFO L226 Difference]: Without dead ends: 491 [2021-12-16 00:52:25,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-12-16 00:52:25,987 INFO L933 BasicCegarLoop]: 619 mSDtfsCounter, 151 mSDsluCounter, 1680 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2299 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 [2021-12-16 00:52:25,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 2299 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 00:52:25,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2021-12-16 00:52:26,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2021-12-16 00:52:26,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 381 states have (on average 1.5590551181102361) internal successors, (594), 387 states have internal predecessors, (594), 79 states have call successors, (79), 28 states have call predecessors, (79), 30 states have return successors, (85), 77 states have call predecessors, (85), 78 states have call successors, (85) [2021-12-16 00:52:26,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 758 transitions. [2021-12-16 00:52:26,015 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 758 transitions. Word has length 128 [2021-12-16 00:52:26,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:26,017 INFO L470 AbstractCegarLoop]: Abstraction has 491 states and 758 transitions. [2021-12-16 00:52:26,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-16 00:52:26,018 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 758 transitions. [2021-12-16 00:52:26,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-16 00:52:26,021 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:26,021 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] [2021-12-16 00:52:26,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-16 00:52:26,234 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 [2021-12-16 00:52:26,234 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:26,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:26,235 INFO L85 PathProgramCache]: Analyzing trace with hash 588920322, now seen corresponding path program 1 times [2021-12-16 00:52:26,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:26,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022988908] [2021-12-16 00:52:26,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:26,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:26,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:26,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:26,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:26,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:52:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 00:52:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-16 00:52:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-16 00:52:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 00:52:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 00:52:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 00:52:26,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-16 00:52:26,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-16 00:52:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-16 00:52:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-16 00:52:26,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,374 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-16 00:52:26,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:26,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022988908] [2021-12-16 00:52:26,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022988908] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:26,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:52:26,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-16 00:52:26,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139173380] [2021-12-16 00:52:26,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:26,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 00:52:26,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:26,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 00:52:26,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 00:52:26,376 INFO L87 Difference]: Start difference. First operand 491 states and 758 transitions. Second operand has 9 states, 8 states have (on average 10.25) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-16 00:52:28,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:28,252 INFO L93 Difference]: Finished difference Result 1093 states and 1709 transitions. [2021-12-16 00:52:28,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-16 00:52:28,253 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 129 [2021-12-16 00:52:28,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:28,257 INFO L225 Difference]: With dead ends: 1093 [2021-12-16 00:52:28,258 INFO L226 Difference]: Without dead ends: 625 [2021-12-16 00:52:28,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-16 00:52:28,260 INFO L933 BasicCegarLoop]: 690 mSDtfsCounter, 1556 mSDsluCounter, 1257 mSDsCounter, 0 mSdLazyCounter, 2018 mSolverCounterSat, 572 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1577 SdHoareTripleChecker+Valid, 1947 SdHoareTripleChecker+Invalid, 2590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 572 IncrementalHoareTripleChecker+Valid, 2018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-16 00:52:28,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1577 Valid, 1947 Invalid, 2590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [572 Valid, 2018 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-16 00:52:28,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2021-12-16 00:52:28,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 491. [2021-12-16 00:52:28,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 381 states have (on average 1.5590551181102361) internal successors, (594), 387 states have internal predecessors, (594), 79 states have call successors, (79), 28 states have call predecessors, (79), 30 states have return successors, (84), 77 states have call predecessors, (84), 78 states have call successors, (84) [2021-12-16 00:52:28,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 757 transitions. [2021-12-16 00:52:28,296 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 757 transitions. Word has length 129 [2021-12-16 00:52:28,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:28,296 INFO L470 AbstractCegarLoop]: Abstraction has 491 states and 757 transitions. [2021-12-16 00:52:28,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-16 00:52:28,297 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 757 transitions. [2021-12-16 00:52:28,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-16 00:52:28,299 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:28,300 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] [2021-12-16 00:52:28,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 00:52:28,300 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:28,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:28,301 INFO L85 PathProgramCache]: Analyzing trace with hash 34869954, now seen corresponding path program 2 times [2021-12-16 00:52:28,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:28,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314815258] [2021-12-16 00:52:28,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:28,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:28,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:52:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-16 00:52:28,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 00:52:28,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 00:52:28,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-16 00:52:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-16 00:52:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 00:52:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 00:52:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-16 00:52:28,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-16 00:52:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 00:52:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,439 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-16 00:52:28,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:28,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314815258] [2021-12-16 00:52:28,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314815258] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:28,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:52:28,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-16 00:52:28,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175174310] [2021-12-16 00:52:28,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:28,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 00:52:28,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:28,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 00:52:28,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 00:52:28,442 INFO L87 Difference]: Start difference. First operand 491 states and 757 transitions. Second operand has 9 states, 8 states have (on average 10.375) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-16 00:52:30,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:30,262 INFO L93 Difference]: Finished difference Result 1095 states and 1712 transitions. [2021-12-16 00:52:30,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-16 00:52:30,263 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 130 [2021-12-16 00:52:30,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:30,267 INFO L225 Difference]: With dead ends: 1095 [2021-12-16 00:52:30,267 INFO L226 Difference]: Without dead ends: 627 [2021-12-16 00:52:30,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-16 00:52:30,270 INFO L933 BasicCegarLoop]: 693 mSDtfsCounter, 1550 mSDsluCounter, 1260 mSDsCounter, 0 mSdLazyCounter, 2039 mSolverCounterSat, 569 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1571 SdHoareTripleChecker+Valid, 1953 SdHoareTripleChecker+Invalid, 2608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 569 IncrementalHoareTripleChecker+Valid, 2039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-16 00:52:30,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1571 Valid, 1953 Invalid, 2608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [569 Valid, 2039 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-16 00:52:30,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2021-12-16 00:52:30,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 493. [2021-12-16 00:52:30,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 382 states have (on average 1.557591623036649) internal successors, (595), 389 states have internal predecessors, (595), 79 states have call successors, (79), 28 states have call predecessors, (79), 31 states have return successors, (86), 77 states have call predecessors, (86), 78 states have call successors, (86) [2021-12-16 00:52:30,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 760 transitions. [2021-12-16 00:52:30,304 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 760 transitions. Word has length 130 [2021-12-16 00:52:30,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:30,305 INFO L470 AbstractCegarLoop]: Abstraction has 493 states and 760 transitions. [2021-12-16 00:52:30,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-16 00:52:30,305 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 760 transitions. [2021-12-16 00:52:30,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-12-16 00:52:30,308 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:30,308 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:52:30,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-16 00:52:30,309 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:30,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:30,309 INFO L85 PathProgramCache]: Analyzing trace with hash 2146944700, now seen corresponding path program 1 times [2021-12-16 00:52:30,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:30,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869412709] [2021-12-16 00:52:30,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:30,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:30,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:30,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:30,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:30,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:30,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:30,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:30,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:30,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:52:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:30,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:52:30,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:30,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 00:52:30,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:30,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-16 00:52:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:30,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-16 00:52:30,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:30,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-16 00:52:30,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:30,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 00:52:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:30,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 00:52:30,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:30,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 00:52:30,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:30,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-16 00:52:30,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:30,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-16 00:52:30,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:30,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-16 00:52:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:30,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-16 00:52:30,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:30,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-16 00:52:30,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:30,513 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 00:52:30,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:30,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869412709] [2021-12-16 00:52:30,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869412709] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:30,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:52:30,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-16 00:52:30,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387507355] [2021-12-16 00:52:30,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:30,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 00:52:30,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:30,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 00:52:30,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-16 00:52:30,516 INFO L87 Difference]: Start difference. First operand 493 states and 760 transitions. Second operand has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2021-12-16 00:52:33,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:33,037 INFO L93 Difference]: Finished difference Result 1093 states and 1707 transitions. [2021-12-16 00:52:33,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-16 00:52:33,038 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 150 [2021-12-16 00:52:33,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:33,042 INFO L225 Difference]: With dead ends: 1093 [2021-12-16 00:52:33,042 INFO L226 Difference]: Without dead ends: 627 [2021-12-16 00:52:33,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-16 00:52:33,044 INFO L933 BasicCegarLoop]: 683 mSDtfsCounter, 1687 mSDsluCounter, 1878 mSDsCounter, 0 mSdLazyCounter, 3720 mSolverCounterSat, 615 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1687 SdHoareTripleChecker+Valid, 2561 SdHoareTripleChecker+Invalid, 4335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 615 IncrementalHoareTripleChecker+Valid, 3720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-16 00:52:33,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1687 Valid, 2561 Invalid, 4335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [615 Valid, 3720 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-16 00:52:33,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2021-12-16 00:52:33,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 493. [2021-12-16 00:52:33,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 382 states have (on average 1.557591623036649) internal successors, (595), 389 states have internal predecessors, (595), 79 states have call successors, (79), 28 states have call predecessors, (79), 31 states have return successors, (85), 77 states have call predecessors, (85), 78 states have call successors, (85) [2021-12-16 00:52:33,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 759 transitions. [2021-12-16 00:52:33,074 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 759 transitions. Word has length 150 [2021-12-16 00:52:33,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:33,074 INFO L470 AbstractCegarLoop]: Abstraction has 493 states and 759 transitions. [2021-12-16 00:52:33,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2021-12-16 00:52:33,074 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 759 transitions. [2021-12-16 00:52:33,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-12-16 00:52:33,077 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:33,077 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] [2021-12-16 00:52:33,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-16 00:52:33,078 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:33,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:33,078 INFO L85 PathProgramCache]: Analyzing trace with hash 581688158, now seen corresponding path program 1 times [2021-12-16 00:52:33,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:33,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825362484] [2021-12-16 00:52:33,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:33,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:33,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:33,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:33,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:33,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:33,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:52:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:52:33,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-16 00:52:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 00:52:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 00:52:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-16 00:52:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-16 00:52:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-16 00:52:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-16 00:52:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-16 00:52:33,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-16 00:52:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,222 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-16 00:52:33,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:33,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825362484] [2021-12-16 00:52:33,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825362484] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:33,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:52:33,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-16 00:52:33,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278790640] [2021-12-16 00:52:33,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:33,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 00:52:33,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:33,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 00:52:33,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-16 00:52:33,227 INFO L87 Difference]: Start difference. First operand 493 states and 759 transitions. Second operand has 12 states, 11 states have (on average 8.0) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-16 00:52:35,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:35,647 INFO L93 Difference]: Finished difference Result 1095 states and 1713 transitions. [2021-12-16 00:52:35,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-16 00:52:35,648 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.0) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 132 [2021-12-16 00:52:35,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:35,652 INFO L225 Difference]: With dead ends: 1095 [2021-12-16 00:52:35,653 INFO L226 Difference]: Without dead ends: 629 [2021-12-16 00:52:35,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-16 00:52:35,655 INFO L933 BasicCegarLoop]: 679 mSDtfsCounter, 1684 mSDsluCounter, 1861 mSDsCounter, 0 mSdLazyCounter, 3740 mSolverCounterSat, 614 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1684 SdHoareTripleChecker+Valid, 2540 SdHoareTripleChecker+Invalid, 4354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 614 IncrementalHoareTripleChecker+Valid, 3740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-16 00:52:35,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1684 Valid, 2540 Invalid, 4354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [614 Valid, 3740 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-16 00:52:35,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2021-12-16 00:52:35,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 495. [2021-12-16 00:52:35,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 383 states have (on average 1.556135770234987) internal successors, (596), 391 states have internal predecessors, (596), 79 states have call successors, (79), 28 states have call predecessors, (79), 32 states have return successors, (90), 77 states have call predecessors, (90), 78 states have call successors, (90) [2021-12-16 00:52:35,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 765 transitions. [2021-12-16 00:52:35,685 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 765 transitions. Word has length 132 [2021-12-16 00:52:35,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:35,685 INFO L470 AbstractCegarLoop]: Abstraction has 495 states and 765 transitions. [2021-12-16 00:52:35,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.0) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-16 00:52:35,685 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 765 transitions. [2021-12-16 00:52:35,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-16 00:52:35,688 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:35,688 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] [2021-12-16 00:52:35,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-16 00:52:35,688 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:35,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:35,689 INFO L85 PathProgramCache]: Analyzing trace with hash 934636332, now seen corresponding path program 1 times [2021-12-16 00:52:35,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:35,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807452414] [2021-12-16 00:52:35,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:35,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:35,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:35,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:35,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:35,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:52:35,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:52:35,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-16 00:52:35,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 00:52:35,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-16 00:52:35,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-16 00:52:35,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-16 00:52:35,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-16 00:52:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-16 00:52:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-16 00:52:35,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-16 00:52:35,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,866 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-16 00:52:35,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:35,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807452414] [2021-12-16 00:52:35,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807452414] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 00:52:35,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374373511] [2021-12-16 00:52:35,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:35,867 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:52:35,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:52:35,872 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) [2021-12-16 00:52:35,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-16 00:52:36,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:36,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-16 00:52:36,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 00:52:36,370 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-16 00:52:36,370 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 00:52:36,626 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-16 00:52:36,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374373511] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 00:52:36,626 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 00:52:36,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2021-12-16 00:52:36,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930217777] [2021-12-16 00:52:36,626 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 00:52:36,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-16 00:52:36,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:36,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-16 00:52:36,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-12-16 00:52:36,628 INFO L87 Difference]: Start difference. First operand 495 states and 765 transitions. Second operand has 15 states, 14 states have (on average 10.357142857142858) internal successors, (145), 11 states have internal predecessors, (145), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2021-12-16 00:52:40,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:40,365 INFO L93 Difference]: Finished difference Result 1954 states and 3271 transitions. [2021-12-16 00:52:40,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-16 00:52:40,367 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.357142857142858) internal successors, (145), 11 states have internal predecessors, (145), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 133 [2021-12-16 00:52:40,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:40,377 INFO L225 Difference]: With dead ends: 1954 [2021-12-16 00:52:40,378 INFO L226 Difference]: Without dead ends: 1490 [2021-12-16 00:52:40,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2021-12-16 00:52:40,382 INFO L933 BasicCegarLoop]: 852 mSDtfsCounter, 3462 mSDsluCounter, 3586 mSDsCounter, 0 mSdLazyCounter, 5356 mSolverCounterSat, 1387 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3464 SdHoareTripleChecker+Valid, 4438 SdHoareTripleChecker+Invalid, 6743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1387 IncrementalHoareTripleChecker+Valid, 5356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-12-16 00:52:40,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3464 Valid, 4438 Invalid, 6743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1387 Valid, 5356 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-12-16 00:52:40,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1490 states. [2021-12-16 00:52:40,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1490 to 913. [2021-12-16 00:52:40,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 722 states have (on average 1.6094182825484764) internal successors, (1162), 730 states have internal predecessors, (1162), 158 states have call successors, (158), 28 states have call predecessors, (158), 32 states have return successors, (179), 156 states have call predecessors, (179), 157 states have call successors, (179) [2021-12-16 00:52:40,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1499 transitions. [2021-12-16 00:52:40,449 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1499 transitions. Word has length 133 [2021-12-16 00:52:40,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:40,449 INFO L470 AbstractCegarLoop]: Abstraction has 913 states and 1499 transitions. [2021-12-16 00:52:40,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.357142857142858) internal successors, (145), 11 states have internal predecessors, (145), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2021-12-16 00:52:40,450 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1499 transitions. [2021-12-16 00:52:40,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-12-16 00:52:40,455 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:40,455 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] [2021-12-16 00:52:40,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-16 00:52:40,669 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 [2021-12-16 00:52:40,670 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:40,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:40,670 INFO L85 PathProgramCache]: Analyzing trace with hash 573622991, now seen corresponding path program 1 times [2021-12-16 00:52:40,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:40,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474722760] [2021-12-16 00:52:40,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:40,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:40,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:40,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:40,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:40,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:40,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:40,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:40,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:40,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:52:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:40,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:52:40,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:40,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-16 00:52:40,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:40,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 00:52:40,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:40,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-16 00:52:40,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:40,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-16 00:52:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:40,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 00:52:40,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:40,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 00:52:40,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:40,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-16 00:52:40,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:40,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-16 00:52:40,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:40,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-16 00:52:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:40,784 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-16 00:52:40,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:40,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474722760] [2021-12-16 00:52:40,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474722760] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:40,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:52:40,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:52:40,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835065541] [2021-12-16 00:52:40,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:40,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:52:40,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:40,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:52:40,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:52:40,787 INFO L87 Difference]: Start difference. First operand 913 states and 1499 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-16 00:52:42,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:42,097 INFO L93 Difference]: Finished difference Result 2280 states and 3839 transitions. [2021-12-16 00:52:42,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:52:42,097 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 136 [2021-12-16 00:52:42,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:42,105 INFO L225 Difference]: With dead ends: 2280 [2021-12-16 00:52:42,105 INFO L226 Difference]: Without dead ends: 1445 [2021-12-16 00:52:42,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:52:42,109 INFO L933 BasicCegarLoop]: 738 mSDtfsCounter, 1542 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 614 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1560 SdHoareTripleChecker+Valid, 1655 SdHoareTripleChecker+Invalid, 1661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 614 IncrementalHoareTripleChecker+Valid, 1047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-16 00:52:42,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1560 Valid, 1655 Invalid, 1661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [614 Valid, 1047 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-16 00:52:42,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2021-12-16 00:52:42,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1303. [2021-12-16 00:52:42,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 1033 states have (on average 1.628267182962246) internal successors, (1682), 1041 states have internal predecessors, (1682), 237 states have call successors, (237), 28 states have call predecessors, (237), 32 states have return successors, (268), 235 states have call predecessors, (268), 236 states have call successors, (268) [2021-12-16 00:52:42,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 2187 transitions. [2021-12-16 00:52:42,180 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 2187 transitions. Word has length 136 [2021-12-16 00:52:42,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:42,180 INFO L470 AbstractCegarLoop]: Abstraction has 1303 states and 2187 transitions. [2021-12-16 00:52:42,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-16 00:52:42,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 2187 transitions. [2021-12-16 00:52:42,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-16 00:52:42,187 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:42,187 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] [2021-12-16 00:52:42,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-16 00:52:42,188 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:42,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:42,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1324847824, now seen corresponding path program 1 times [2021-12-16 00:52:42,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:42,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763467885] [2021-12-16 00:52:42,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:42,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:42,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:42,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:42,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:42,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:42,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:42,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:42,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:42,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:52:42,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:42,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:52:42,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:42,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 00:52:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:42,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-16 00:52:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:42,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 00:52:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:42,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-16 00:52:42,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:42,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 00:52:42,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:42,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 00:52:42,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:42,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 00:52:42,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:42,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 00:52:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:42,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-16 00:52:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:42,302 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-16 00:52:42,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:42,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763467885] [2021-12-16 00:52:42,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763467885] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:42,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:52:42,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:52:42,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957765833] [2021-12-16 00:52:42,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:42,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:52:42,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:42,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:52:42,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:52:42,305 INFO L87 Difference]: Start difference. First operand 1303 states and 2187 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-16 00:52:43,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:43,639 INFO L93 Difference]: Finished difference Result 3254 states and 5548 transitions. [2021-12-16 00:52:43,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:52:43,641 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 137 [2021-12-16 00:52:43,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:43,650 INFO L225 Difference]: With dead ends: 3254 [2021-12-16 00:52:43,651 INFO L226 Difference]: Without dead ends: 2082 [2021-12-16 00:52:43,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:52:43,655 INFO L933 BasicCegarLoop]: 728 mSDtfsCounter, 1543 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 635 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1562 SdHoareTripleChecker+Valid, 1631 SdHoareTripleChecker+Invalid, 1661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 635 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-16 00:52:43,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1562 Valid, 1631 Invalid, 1661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [635 Valid, 1026 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-16 00:52:43,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2082 states. [2021-12-16 00:52:43,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2082 to 1940. [2021-12-16 00:52:43,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1940 states, 1551 states have (on average 1.6376531270148291) internal successors, (2540), 1559 states have internal predecessors, (2540), 356 states have call successors, (356), 28 states have call predecessors, (356), 32 states have return successors, (387), 354 states have call predecessors, (387), 355 states have call successors, (387) [2021-12-16 00:52:43,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1940 states to 1940 states and 3283 transitions. [2021-12-16 00:52:43,799 INFO L78 Accepts]: Start accepts. Automaton has 1940 states and 3283 transitions. Word has length 137 [2021-12-16 00:52:43,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:43,800 INFO L470 AbstractCegarLoop]: Abstraction has 1940 states and 3283 transitions. [2021-12-16 00:52:43,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-16 00:52:43,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1940 states and 3283 transitions. [2021-12-16 00:52:43,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-16 00:52:43,811 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:43,811 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:52:43,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-16 00:52:43,811 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:43,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:43,812 INFO L85 PathProgramCache]: Analyzing trace with hash 395173602, now seen corresponding path program 1 times [2021-12-16 00:52:43,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:43,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649386874] [2021-12-16 00:52:43,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:43,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:43,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:43,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:43,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:43,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:43,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:43,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:43,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:43,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:43,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:52:43,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:43,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:52:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:43,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 00:52:43,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:43,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 00:52:43,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:43,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-16 00:52:43,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:43,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 00:52:43,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:43,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 00:52:43,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:43,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 00:52:43,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:43,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-16 00:52:43,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:43,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-16 00:52:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:43,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-16 00:52:43,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:43,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-16 00:52:43,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:43,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-16 00:52:43,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:43,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-16 00:52:43,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:43,928 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-16 00:52:43,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:43,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649386874] [2021-12-16 00:52:43,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649386874] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:43,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:52:43,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:52:43,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100394896] [2021-12-16 00:52:43,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:43,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:52:43,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:43,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:52:43,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:52:43,930 INFO L87 Difference]: Start difference. First operand 1940 states and 3283 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 00:52:45,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:45,191 INFO L93 Difference]: Finished difference Result 4734 states and 8159 transitions. [2021-12-16 00:52:45,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:52:45,192 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 157 [2021-12-16 00:52:45,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:45,211 INFO L225 Difference]: With dead ends: 4734 [2021-12-16 00:52:45,211 INFO L226 Difference]: Without dead ends: 3060 [2021-12-16 00:52:45,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:52:45,219 INFO L933 BasicCegarLoop]: 715 mSDtfsCounter, 1543 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 617 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1562 SdHoareTripleChecker+Valid, 1587 SdHoareTripleChecker+Invalid, 1634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 617 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-16 00:52:45,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1562 Valid, 1587 Invalid, 1634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [617 Valid, 1017 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-16 00:52:45,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3060 states. [2021-12-16 00:52:45,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3060 to 2918. [2021-12-16 00:52:45,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2918 states, 2367 states have (on average 1.6451204055766793) internal successors, (3894), 2375 states have internal predecessors, (3894), 518 states have call successors, (518), 28 states have call predecessors, (518), 32 states have return successors, (565), 516 states have call predecessors, (565), 517 states have call successors, (565) [2021-12-16 00:52:45,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2918 states to 2918 states and 4977 transitions. [2021-12-16 00:52:45,434 INFO L78 Accepts]: Start accepts. Automaton has 2918 states and 4977 transitions. Word has length 157 [2021-12-16 00:52:45,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:45,434 INFO L470 AbstractCegarLoop]: Abstraction has 2918 states and 4977 transitions. [2021-12-16 00:52:45,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 00:52:45,435 INFO L276 IsEmpty]: Start isEmpty. Operand 2918 states and 4977 transitions. [2021-12-16 00:52:45,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-16 00:52:45,449 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:45,450 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:52:45,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-16 00:52:45,450 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:45,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:45,451 INFO L85 PathProgramCache]: Analyzing trace with hash -274246156, now seen corresponding path program 1 times [2021-12-16 00:52:45,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:45,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056441622] [2021-12-16 00:52:45,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:45,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:45,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:45,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:45,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:45,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:45,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:45,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:45,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:45,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:45,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:52:45,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:45,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:52:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:45,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-16 00:52:45,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:45,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-16 00:52:45,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:45,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-16 00:52:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:45,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 00:52:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:45,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-16 00:52:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:45,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 00:52:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:45,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 00:52:45,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:45,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-16 00:52:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:45,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-16 00:52:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:45,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-16 00:52:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:45,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-16 00:52:45,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:45,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-16 00:52:45,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:45,558 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-16 00:52:45,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:45,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056441622] [2021-12-16 00:52:45,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056441622] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:45,559 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:52:45,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:52:45,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799806400] [2021-12-16 00:52:45,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:45,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:52:45,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:45,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:52:45,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:52:45,561 INFO L87 Difference]: Start difference. First operand 2918 states and 4977 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 00:52:46,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:46,981 INFO L93 Difference]: Finished difference Result 7073 states and 12294 transitions. [2021-12-16 00:52:46,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:52:46,982 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 158 [2021-12-16 00:52:46,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:47,007 INFO L225 Difference]: With dead ends: 7073 [2021-12-16 00:52:47,008 INFO L226 Difference]: Without dead ends: 4640 [2021-12-16 00:52:47,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:52:47,018 INFO L933 BasicCegarLoop]: 720 mSDtfsCounter, 1538 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 623 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1556 SdHoareTripleChecker+Valid, 1599 SdHoareTripleChecker+Invalid, 1657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 623 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-16 00:52:47,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1556 Valid, 1599 Invalid, 1657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [623 Valid, 1034 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-16 00:52:47,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4640 states. [2021-12-16 00:52:47,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4640 to 4498. [2021-12-16 00:52:47,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4498 states, 3702 states have (on average 1.650459211237169) internal successors, (6110), 3710 states have internal predecessors, (6110), 763 states have call successors, (763), 28 states have call predecessors, (763), 32 states have return successors, (836), 761 states have call predecessors, (836), 762 states have call successors, (836) [2021-12-16 00:52:47,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4498 states to 4498 states and 7709 transitions. [2021-12-16 00:52:47,315 INFO L78 Accepts]: Start accepts. Automaton has 4498 states and 7709 transitions. Word has length 158 [2021-12-16 00:52:47,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:47,315 INFO L470 AbstractCegarLoop]: Abstraction has 4498 states and 7709 transitions. [2021-12-16 00:52:47,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 00:52:47,316 INFO L276 IsEmpty]: Start isEmpty. Operand 4498 states and 7709 transitions. [2021-12-16 00:52:47,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-12-16 00:52:47,335 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:47,336 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] [2021-12-16 00:52:47,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-16 00:52:47,336 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:47,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:47,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1871156987, now seen corresponding path program 1 times [2021-12-16 00:52:47,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:47,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92814581] [2021-12-16 00:52:47,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:47,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:47,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:47,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:47,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:47,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:47,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:52:47,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:52:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-16 00:52:47,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-16 00:52:47,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-16 00:52:47,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-16 00:52:47,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 00:52:47,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-16 00:52:47,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-16 00:52:47,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-16 00:52:47,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-16 00:52:47,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,446 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-16 00:52:47,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:47,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92814581] [2021-12-16 00:52:47,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92814581] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:47,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:52:47,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:52:47,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558118466] [2021-12-16 00:52:47,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:47,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:52:47,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:47,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:52:47,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:52:47,449 INFO L87 Difference]: Start difference. First operand 4498 states and 7709 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-16 00:52:48,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:48,953 INFO L93 Difference]: Finished difference Result 11244 states and 19623 transitions. [2021-12-16 00:52:48,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:52:48,954 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 140 [2021-12-16 00:52:48,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:48,996 INFO L225 Difference]: With dead ends: 11244 [2021-12-16 00:52:48,996 INFO L226 Difference]: Without dead ends: 7483 [2021-12-16 00:52:49,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:52:49,011 INFO L933 BasicCegarLoop]: 738 mSDtfsCounter, 1536 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 623 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1554 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 1670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 623 IncrementalHoareTripleChecker+Valid, 1047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-16 00:52:49,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1554 Valid, 1664 Invalid, 1670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [623 Valid, 1047 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-16 00:52:49,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7483 states. [2021-12-16 00:52:49,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7483 to 7341. [2021-12-16 00:52:49,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7341 states, 6052 states have (on average 1.647224058162591) internal successors, (9969), 6060 states have internal predecessors, (9969), 1256 states have call successors, (1256), 28 states have call predecessors, (1256), 32 states have return successors, (1373), 1254 states have call predecessors, (1373), 1255 states have call successors, (1373) [2021-12-16 00:52:49,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7341 states to 7341 states and 12598 transitions. [2021-12-16 00:52:49,498 INFO L78 Accepts]: Start accepts. Automaton has 7341 states and 12598 transitions. Word has length 140 [2021-12-16 00:52:49,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:49,499 INFO L470 AbstractCegarLoop]: Abstraction has 7341 states and 12598 transitions. [2021-12-16 00:52:49,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-16 00:52:49,499 INFO L276 IsEmpty]: Start isEmpty. Operand 7341 states and 12598 transitions. [2021-12-16 00:52:49,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-12-16 00:52:49,527 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:49,527 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:52:49,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-16 00:52:49,527 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:49,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:49,528 INFO L85 PathProgramCache]: Analyzing trace with hash 187573400, now seen corresponding path program 1 times [2021-12-16 00:52:49,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:49,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279661670] [2021-12-16 00:52:49,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:49,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:49,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:49,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:49,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:49,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:49,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:49,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:49,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:49,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:49,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:49,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:52:49,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:49,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:52:49,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:49,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 00:52:49,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:49,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 00:52:49,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:49,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-16 00:52:49,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:49,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-16 00:52:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:49,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 00:52:49,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:49,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-16 00:52:49,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:49,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-16 00:52:49,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:49,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 00:52:49,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:49,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-16 00:52:49,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:49,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-16 00:52:49,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:49,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-16 00:52:49,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:49,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-16 00:52:49,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:49,649 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-16 00:52:49,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:49,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279661670] [2021-12-16 00:52:49,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279661670] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:49,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:52:49,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:52:49,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644373650] [2021-12-16 00:52:49,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:49,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:52:49,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:49,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:52:49,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:52:49,651 INFO L87 Difference]: Start difference. First operand 7341 states and 12598 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 00:52:51,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:51,165 INFO L93 Difference]: Finished difference Result 18664 states and 32587 transitions. [2021-12-16 00:52:51,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:52:51,165 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 160 [2021-12-16 00:52:51,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:51,238 INFO L225 Difference]: With dead ends: 18664 [2021-12-16 00:52:51,239 INFO L226 Difference]: Without dead ends: 12462 [2021-12-16 00:52:51,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:52:51,261 INFO L933 BasicCegarLoop]: 733 mSDtfsCounter, 1531 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 624 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1549 SdHoareTripleChecker+Valid, 1640 SdHoareTripleChecker+Invalid, 1665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 624 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-16 00:52:51,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1549 Valid, 1640 Invalid, 1665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [624 Valid, 1041 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-16 00:52:51,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12462 states. [2021-12-16 00:52:51,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12462 to 12320. [2021-12-16 00:52:51,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12320 states, 10209 states have (on average 1.6475658732490939) internal successors, (16820), 10217 states have internal predecessors, (16820), 2078 states have call successors, (2078), 28 states have call predecessors, (2078), 32 states have return successors, (2273), 2076 states have call predecessors, (2273), 2077 states have call successors, (2273) [2021-12-16 00:52:52,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12320 states to 12320 states and 21171 transitions. [2021-12-16 00:52:52,026 INFO L78 Accepts]: Start accepts. Automaton has 12320 states and 21171 transitions. Word has length 160 [2021-12-16 00:52:52,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:52,027 INFO L470 AbstractCegarLoop]: Abstraction has 12320 states and 21171 transitions. [2021-12-16 00:52:52,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 00:52:52,027 INFO L276 IsEmpty]: Start isEmpty. Operand 12320 states and 21171 transitions. [2021-12-16 00:52:52,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-12-16 00:52:52,066 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:52,066 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] [2021-12-16 00:52:52,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-16 00:52:52,067 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:52,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:52,067 INFO L85 PathProgramCache]: Analyzing trace with hash -953878621, now seen corresponding path program 1 times [2021-12-16 00:52:52,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:52,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843913985] [2021-12-16 00:52:52,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:52,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:52,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:52,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:52,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:52,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:52,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:52,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:52,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:52,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:52,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:52:52,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:52,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:52:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:52,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-16 00:52:52,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:52,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-16 00:52:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:52,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-16 00:52:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:52,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-16 00:52:52,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:52,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 00:52:52,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:52,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-16 00:52:52,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:52,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-16 00:52:52,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:52,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 00:52:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:52,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 00:52:52,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:52,163 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-16 00:52:52,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:52,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843913985] [2021-12-16 00:52:52,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843913985] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:52,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:52:52,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:52:52,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520989579] [2021-12-16 00:52:52,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:52,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:52:52,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:52,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:52:52,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:52:52,167 INFO L87 Difference]: Start difference. First operand 12320 states and 21171 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-16 00:52:53,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:53,927 INFO L93 Difference]: Finished difference Result 29622 states and 51447 transitions. [2021-12-16 00:52:53,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:52:53,928 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 142 [2021-12-16 00:52:53,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:54,018 INFO L225 Difference]: With dead ends: 29622 [2021-12-16 00:52:54,018 INFO L226 Difference]: Without dead ends: 19415 [2021-12-16 00:52:54,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:52:54,056 INFO L933 BasicCegarLoop]: 726 mSDtfsCounter, 1530 mSDsluCounter, 865 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 605 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1548 SdHoareTripleChecker+Valid, 1591 SdHoareTripleChecker+Invalid, 1653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 605 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-16 00:52:54,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1548 Valid, 1591 Invalid, 1653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [605 Valid, 1048 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-16 00:52:54,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19415 states. [2021-12-16 00:52:55,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19415 to 19273. [2021-12-16 00:52:55,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19273 states, 15959 states have (on average 1.6222820978758068) internal successors, (25890), 15967 states have internal predecessors, (25890), 3281 states have call successors, (3281), 28 states have call predecessors, (3281), 32 states have return successors, (3620), 3279 states have call predecessors, (3620), 3280 states have call successors, (3620) [2021-12-16 00:52:55,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19273 states to 19273 states and 32791 transitions. [2021-12-16 00:52:55,299 INFO L78 Accepts]: Start accepts. Automaton has 19273 states and 32791 transitions. Word has length 142 [2021-12-16 00:52:55,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:55,300 INFO L470 AbstractCegarLoop]: Abstraction has 19273 states and 32791 transitions. [2021-12-16 00:52:55,300 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-16 00:52:55,300 INFO L276 IsEmpty]: Start isEmpty. Operand 19273 states and 32791 transitions. [2021-12-16 00:52:55,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-12-16 00:52:55,332 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:55,332 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:52:55,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-16 00:52:55,333 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:55,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:55,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1879023609, now seen corresponding path program 1 times [2021-12-16 00:52:55,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:55,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513738164] [2021-12-16 00:52:55,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:55,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:55,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:55,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:55,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:55,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:55,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:55,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:55,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:55,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:55,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:52:55,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:55,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:52:55,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:55,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 00:52:55,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:55,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-16 00:52:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:55,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-16 00:52:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:55,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-16 00:52:55,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:55,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 00:52:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:55,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-16 00:52:55,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:55,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-16 00:52:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:55,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-16 00:52:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:55,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-16 00:52:55,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:55,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-16 00:52:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:55,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-16 00:52:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:55,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-16 00:52:55,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:55,426 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-16 00:52:55,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:55,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513738164] [2021-12-16 00:52:55,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513738164] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:55,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:52:55,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:52:55,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732817385] [2021-12-16 00:52:55,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:55,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:52:55,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:55,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:52:55,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:52:55,429 INFO L87 Difference]: Start difference. First operand 19273 states and 32791 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 00:52:58,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:58,031 INFO L93 Difference]: Finished difference Result 51054 states and 88365 transitions. [2021-12-16 00:52:58,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:52:58,031 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 162 [2021-12-16 00:52:58,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:58,171 INFO L225 Difference]: With dead ends: 51054 [2021-12-16 00:52:58,171 INFO L226 Difference]: Without dead ends: 34536 [2021-12-16 00:52:58,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:52:58,221 INFO L933 BasicCegarLoop]: 719 mSDtfsCounter, 1531 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 622 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1549 SdHoareTripleChecker+Valid, 1598 SdHoareTripleChecker+Invalid, 1661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 622 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-16 00:52:58,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1549 Valid, 1598 Invalid, 1661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [622 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-16 00:52:58,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34536 states. [2021-12-16 00:53:00,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34536 to 34394. [2021-12-16 00:53:00,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34394 states, 28630 states have (on average 1.61914076143905) internal successors, (46356), 28638 states have internal predecessors, (46356), 5731 states have call successors, (5731), 28 states have call predecessors, (5731), 32 states have return successors, (6344), 5729 states have call predecessors, (6344), 5730 states have call successors, (6344) [2021-12-16 00:53:00,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34394 states to 34394 states and 58431 transitions. [2021-12-16 00:53:00,337 INFO L78 Accepts]: Start accepts. Automaton has 34394 states and 58431 transitions. Word has length 162 [2021-12-16 00:53:00,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:53:00,338 INFO L470 AbstractCegarLoop]: Abstraction has 34394 states and 58431 transitions. [2021-12-16 00:53:00,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 00:53:00,338 INFO L276 IsEmpty]: Start isEmpty. Operand 34394 states and 58431 transitions. [2021-12-16 00:53:00,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-12-16 00:53:00,382 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:53:00,382 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:53:00,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-16 00:53:00,383 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:53:00,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:53:00,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1086875802, now seen corresponding path program 1 times [2021-12-16 00:53:00,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:53:00,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655324658] [2021-12-16 00:53:00,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:53:00,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:53:00,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:00,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:53:00,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:00,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:53:00,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:00,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:53:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:00,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:53:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:00,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:53:00,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:00,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:53:00,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:00,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-16 00:53:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:00,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 00:53:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:00,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-16 00:53:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:00,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-16 00:53:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:00,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 00:53:00,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:00,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-16 00:53:00,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:00,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-16 00:53:00,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:00,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-16 00:53:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:00,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-16 00:53:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:00,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-16 00:53:00,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:00,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-16 00:53:00,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:00,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-16 00:53:00,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:00,496 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-16 00:53:00,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:53:00,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655324658] [2021-12-16 00:53:00,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655324658] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:53:00,496 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:53:00,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:53:00,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740534274] [2021-12-16 00:53:00,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:53:00,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:53:00,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:53:00,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:53:00,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:53:00,499 INFO L87 Difference]: Start difference. First operand 34394 states and 58431 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 00:53:04,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:53:04,033 INFO L93 Difference]: Finished difference Result 93926 states and 161764 transitions. [2021-12-16 00:53:04,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:53:04,034 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 163 [2021-12-16 00:53:04,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:53:04,296 INFO L225 Difference]: With dead ends: 93926 [2021-12-16 00:53:04,297 INFO L226 Difference]: Without dead ends: 63203 [2021-12-16 00:53:04,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:53:04,375 INFO L933 BasicCegarLoop]: 725 mSDtfsCounter, 1529 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 613 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1548 SdHoareTripleChecker+Valid, 1614 SdHoareTripleChecker+Invalid, 1659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 613 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-16 00:53:04,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1548 Valid, 1614 Invalid, 1659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [613 Valid, 1046 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-16 00:53:04,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63203 states. [2021-12-16 00:53:07,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63203 to 63061. [2021-12-16 00:53:07,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63061 states, 52784 states have (on average 1.6149022431039708) internal successors, (85241), 52792 states have internal predecessors, (85241), 10244 states have call successors, (10244), 28 states have call predecessors, (10244), 32 states have return successors, (11389), 10242 states have call predecessors, (11389), 10243 states have call successors, (11389) [2021-12-16 00:53:07,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63061 states to 63061 states and 106874 transitions. [2021-12-16 00:53:07,448 INFO L78 Accepts]: Start accepts. Automaton has 63061 states and 106874 transitions. Word has length 163 [2021-12-16 00:53:07,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:53:07,448 INFO L470 AbstractCegarLoop]: Abstraction has 63061 states and 106874 transitions. [2021-12-16 00:53:07,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 00:53:07,449 INFO L276 IsEmpty]: Start isEmpty. Operand 63061 states and 106874 transitions. [2021-12-16 00:53:07,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-12-16 00:53:07,505 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:53:07,505 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:53:07,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-16 00:53:07,506 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:53:07,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:53:07,506 INFO L85 PathProgramCache]: Analyzing trace with hash 420907641, now seen corresponding path program 1 times [2021-12-16 00:53:07,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:53:07,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018777486] [2021-12-16 00:53:07,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:53:07,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:53:07,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:07,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:53:07,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:07,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:53:07,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:07,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:53:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:07,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:53:07,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:07,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:53:07,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:07,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:53:07,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:07,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-16 00:53:07,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:07,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-16 00:53:07,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:07,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-16 00:53:07,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:07,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 00:53:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:07,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 00:53:07,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:07,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-16 00:53:07,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:07,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-16 00:53:07,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:07,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-16 00:53:07,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:07,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-16 00:53:07,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:07,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-16 00:53:07,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:07,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-16 00:53:07,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:07,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-16 00:53:07,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:53:07,868 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-16 00:53:07,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:53:07,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018777486] [2021-12-16 00:53:07,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018777486] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:53:07,869 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:53:07,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:53:07,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483963] [2021-12-16 00:53:07,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:53:07,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:53:07,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:53:07,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:53:07,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:53:07,871 INFO L87 Difference]: Start difference. First operand 63061 states and 106874 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)