/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec1_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 06:22:41,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 06:22:41,324 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 06:22:41,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 06:22:41,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 06:22:41,397 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 06:22:41,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 06:22:41,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 06:22:41,400 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 06:22:41,401 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 06:22:41,401 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 06:22:41,402 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 06:22:41,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 06:22:41,403 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 06:22:41,404 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 06:22:41,404 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 06:22:41,405 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 06:22:41,405 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 06:22:41,407 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 06:22:41,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 06:22:41,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 06:22:41,421 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 06:22:41,422 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 06:22:41,422 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 06:22:41,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 06:22:41,424 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 06:22:41,424 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 06:22:41,425 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 06:22:41,425 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 06:22:41,426 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-01-10 06:22:41,430 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 06:22:41,431 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 06:22:41,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 06:22:41,440 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-01-10 06:22:41,482 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 06:22:41,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 06:22:41,483 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 06:22:41,483 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 06:22:41,483 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 06:22:41,483 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 06:22:41,484 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 06:22:41,484 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 06:22:41,484 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 06:22:41,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 06:22:41,485 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 06:22:41,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 06:22:41,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 06:22:41,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 06:22:41,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 06:22:41,485 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 06:22:41,485 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 06:22:41,485 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 06:22:41,485 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 06:22:41,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 06:22:41,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 06:22:41,486 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 06:22:41,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 06:22:41,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:22:41,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 06:22:41,486 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 06:22:41,486 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 06:22:41,486 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 06:22:41,486 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 06:22:41,486 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 06:22:41,486 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 06:22:41,487 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 06:22:41,487 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 06:22:41,487 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 06:22:41,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 06:22:41,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 06:22:41,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 06:22:41,687 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 06:22:41,691 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 06:22:41,692 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product35.cil.c [2022-01-10 06:22:41,749 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afa436ee0/936473b8b4044efc98d27c9558650cfd/FLAGc242d5f26 [2022-01-10 06:22:42,233 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 06:22:42,234 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product35.cil.c [2022-01-10 06:22:42,256 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afa436ee0/936473b8b4044efc98d27c9558650cfd/FLAGc242d5f26 [2022-01-10 06:22:42,558 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afa436ee0/936473b8b4044efc98d27c9558650cfd [2022-01-10 06:22:42,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 06:22:42,584 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 06:22:42,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 06:22:42,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 06:22:42,592 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 06:22:42,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:22:42" (1/1) ... [2022-01-10 06:22:42,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@730d1223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:22:42, skipping insertion in model container [2022-01-10 06:22:42,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:22:42" (1/1) ... [2022-01-10 06:22:42,600 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 06:22:42,679 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:22:43,138 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product35.cil.c[66161,66174] [2022-01-10 06:22:43,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:22:43,156 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 06:22:43,179 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:22:43,287 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product35.cil.c[66161,66174] [2022-01-10 06:22:43,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:22:43,297 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 06:22:43,366 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product35.cil.c[66161,66174] [2022-01-10 06:22:43,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:22:43,391 INFO L208 MainTranslator]: Completed translation [2022-01-10 06:22:43,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:22:43 WrapperNode [2022-01-10 06:22:43,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 06:22:43,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 06:22:43,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 06:22:43,393 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 06:22:43,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:22:43" (1/1) ... [2022-01-10 06:22:43,425 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:22:43" (1/1) ... [2022-01-10 06:22:43,501 INFO L137 Inliner]: procedures = 139, calls = 247, calls flagged for inlining = 66, calls inlined = 63, statements flattened = 1082 [2022-01-10 06:22:43,501 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 06:22:43,502 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 06:22:43,502 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 06:22:43,502 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 06:22:43,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:22:43" (1/1) ... [2022-01-10 06:22:43,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:22:43" (1/1) ... [2022-01-10 06:22:43,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:22:43" (1/1) ... [2022-01-10 06:22:43,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:22:43" (1/1) ... [2022-01-10 06:22:43,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:22:43" (1/1) ... [2022-01-10 06:22:43,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:22:43" (1/1) ... [2022-01-10 06:22:43,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:22:43" (1/1) ... [2022-01-10 06:22:43,624 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 06:22:43,625 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 06:22:43,625 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 06:22:43,625 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 06:22:43,635 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:22:43" (1/1) ... [2022-01-10 06:22:43,663 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:22:43,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 06:22:43,688 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 06:22:43,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 06:22:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-01-10 06:22:43,730 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-01-10 06:22:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-01-10 06:22:43,730 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-01-10 06:22:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-01-10 06:22:43,731 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-01-10 06:22:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-01-10 06:22:43,731 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-01-10 06:22:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-01-10 06:22:43,731 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-01-10 06:22:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-01-10 06:22:43,731 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-01-10 06:22:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-01-10 06:22:43,731 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-01-10 06:22:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-01-10 06:22:43,731 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-01-10 06:22:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-01-10 06:22:43,732 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-01-10 06:22:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-01-10 06:22:43,732 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-01-10 06:22:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-01-10 06:22:43,732 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-01-10 06:22:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-01-10 06:22:43,732 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-01-10 06:22:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-01-10 06:22:43,732 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-01-10 06:22:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-10 06:22:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-01-10 06:22:43,732 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-01-10 06:22:43,733 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-01-10 06:22:43,733 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-01-10 06:22:43,733 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-01-10 06:22:43,733 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-01-10 06:22:43,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 06:22:43,733 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-01-10 06:22:43,733 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-01-10 06:22:43,733 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-01-10 06:22:43,733 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-01-10 06:22:43,733 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-01-10 06:22:43,733 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-01-10 06:22:43,733 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-01-10 06:22:43,733 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-01-10 06:22:43,734 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-01-10 06:22:43,734 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-01-10 06:22:43,734 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-01-10 06:22:43,734 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-01-10 06:22:43,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 06:22:43,735 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-01-10 06:22:43,735 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-01-10 06:22:43,735 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-01-10 06:22:43,735 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-01-10 06:22:43,735 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-01-10 06:22:43,735 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-01-10 06:22:43,735 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-01-10 06:22:43,736 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-01-10 06:22:43,736 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-01-10 06:22:43,736 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-01-10 06:22:43,736 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-01-10 06:22:43,737 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-01-10 06:22:43,737 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-01-10 06:22:43,737 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-01-10 06:22:43,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 06:22:43,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 06:22:44,005 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 06:22:44,007 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 06:22:44,731 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 06:22:44,743 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 06:22:44,743 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 06:22:44,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:22:44 BoogieIcfgContainer [2022-01-10 06:22:44,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 06:22:44,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 06:22:44,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 06:22:44,749 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 06:22:44,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:22:42" (1/3) ... [2022-01-10 06:22:44,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e67965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:22:44, skipping insertion in model container [2022-01-10 06:22:44,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:22:43" (2/3) ... [2022-01-10 06:22:44,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e67965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:22:44, skipping insertion in model container [2022-01-10 06:22:44,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:22:44" (3/3) ... [2022-01-10 06:22:44,751 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec1_product35.cil.c [2022-01-10 06:22:44,754 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 06:22:44,755 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 06:22:44,797 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 06:22:44,802 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 [2022-01-10 06:22:44,803 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 06:22:44,828 INFO L276 IsEmpty]: Start isEmpty. Operand has 466 states, 360 states have (on average 1.5361111111111112) internal successors, (553), 365 states have internal predecessors, (553), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2022-01-10 06:22:44,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 06:22:44,842 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:44,842 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-01-10 06:22:44,842 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:44,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:44,845 INFO L85 PathProgramCache]: Analyzing trace with hash -860746254, now seen corresponding path program 1 times [2022-01-10 06:22:44,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:44,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [325199512] [2022-01-10 06:22:44,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:44,858 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:44,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:44,860 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:44,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-01-10 06:22:45,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:45,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 06:22:45,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:45,355 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-01-10 06:22:45,355 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:45,356 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:45,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [325199512] [2022-01-10 06:22:45,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [325199512] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:45,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:45,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:22:45,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111142791] [2022-01-10 06:22:45,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:45,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 06:22:45,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:45,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 06:22:45,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 06:22:45,388 INFO L87 Difference]: Start difference. First operand has 466 states, 360 states have (on average 1.5361111111111112) internal successors, (553), 365 states have internal predecessors, (553), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:45,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:45,464 INFO L93 Difference]: Finished difference Result 734 states and 1088 transitions. [2022-01-10 06:22:45,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 06:22:45,469 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 110 [2022-01-10 06:22:45,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:45,480 INFO L225 Difference]: With dead ends: 734 [2022-01-10 06:22:45,481 INFO L226 Difference]: Without dead ends: 459 [2022-01-10 06:22:45,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 06:22:45,488 INFO L933 BasicCegarLoop]: 699 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, 699 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:45,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:45,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2022-01-10 06:22:45,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 459. [2022-01-10 06:22:45,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 354 states have (on average 1.5310734463276836) internal successors, (542), 358 states have internal predecessors, (542), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2022-01-10 06:22:45,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 691 transitions. [2022-01-10 06:22:45,560 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 691 transitions. Word has length 110 [2022-01-10 06:22:45,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:45,561 INFO L470 AbstractCegarLoop]: Abstraction has 459 states and 691 transitions. [2022-01-10 06:22:45,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:45,561 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 691 transitions. [2022-01-10 06:22:45,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-01-10 06:22:45,566 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:45,566 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-01-10 06:22:45,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-01-10 06:22:45,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:45,778 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:45,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:45,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1017551577, now seen corresponding path program 1 times [2022-01-10 06:22:45,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:45,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [125674905] [2022-01-10 06:22:45,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:45,780 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:45,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:45,781 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:45,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-01-10 06:22:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:46,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 06:22:46,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:46,258 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 06:22:46,259 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:46,259 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:46,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [125674905] [2022-01-10 06:22:46,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [125674905] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:46,259 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:46,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:22:46,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055613161] [2022-01-10 06:22:46,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:46,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:22:46,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:46,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:22:46,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:22:46,261 INFO L87 Difference]: Start difference. First operand 459 states and 691 transitions. Second operand has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-01-10 06:22:46,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:46,330 INFO L93 Difference]: Finished difference Result 909 states and 1372 transitions. [2022-01-10 06:22:46,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:22:46,344 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 111 [2022-01-10 06:22:46,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:46,347 INFO L225 Difference]: With dead ends: 909 [2022-01-10 06:22:46,347 INFO L226 Difference]: Without dead ends: 461 [2022-01-10 06:22:46,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:22:46,349 INFO L933 BasicCegarLoop]: 682 mSDtfsCounter, 160 mSDsluCounter, 1864 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 2546 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 [2022-01-10 06:22:46,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 2546 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:46,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2022-01-10 06:22:46,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 461. [2022-01-10 06:22:46,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 355 states have (on average 1.5295774647887324) internal successors, (543), 360 states have internal predecessors, (543), 75 states have call successors, (75), 29 states have call predecessors, (75), 30 states have return successors, (76), 73 states have call predecessors, (76), 74 states have call successors, (76) [2022-01-10 06:22:46,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 694 transitions. [2022-01-10 06:22:46,398 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 694 transitions. Word has length 111 [2022-01-10 06:22:46,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:46,398 INFO L470 AbstractCegarLoop]: Abstraction has 461 states and 694 transitions. [2022-01-10 06:22:46,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-01-10 06:22:46,398 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 694 transitions. [2022-01-10 06:22:46,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-10 06:22:46,401 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:46,401 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-01-10 06:22:46,424 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-01-10 06:22:46,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:46,602 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:46,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:46,603 INFO L85 PathProgramCache]: Analyzing trace with hash -511043956, now seen corresponding path program 1 times [2022-01-10 06:22:46,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:46,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1182667160] [2022-01-10 06:22:46,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:46,604 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:46,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:46,606 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:46,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-01-10 06:22:46,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:46,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:22:46,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:47,053 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 06:22:47,054 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:47,054 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:47,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1182667160] [2022-01-10 06:22:47,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1182667160] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:47,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:47,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:22:47,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180913038] [2022-01-10 06:22:47,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:47,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:22:47,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:47,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:22:47,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:22:47,060 INFO L87 Difference]: Start difference. First operand 461 states and 694 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-01-10 06:22:47,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:47,130 INFO L93 Difference]: Finished difference Result 911 states and 1376 transitions. [2022-01-10 06:22:47,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:22:47,131 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 112 [2022-01-10 06:22:47,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:47,134 INFO L225 Difference]: With dead ends: 911 [2022-01-10 06:22:47,134 INFO L226 Difference]: Without dead ends: 463 [2022-01-10 06:22:47,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:22:47,137 INFO L933 BasicCegarLoop]: 680 mSDtfsCounter, 159 mSDsluCounter, 1855 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 2535 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 [2022-01-10 06:22:47,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 2535 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:47,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2022-01-10 06:22:47,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 463. [2022-01-10 06:22:47,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 356 states have (on average 1.5280898876404494) internal successors, (544), 362 states have internal predecessors, (544), 75 states have call successors, (75), 29 states have call predecessors, (75), 31 states have return successors, (80), 73 states have call predecessors, (80), 74 states have call successors, (80) [2022-01-10 06:22:47,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 699 transitions. [2022-01-10 06:22:47,172 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 699 transitions. Word has length 112 [2022-01-10 06:22:47,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:47,173 INFO L470 AbstractCegarLoop]: Abstraction has 463 states and 699 transitions. [2022-01-10 06:22:47,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-01-10 06:22:47,173 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 699 transitions. [2022-01-10 06:22:47,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 06:22:47,175 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:47,175 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-01-10 06:22:47,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-01-10 06:22:47,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:47,386 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:47,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:47,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1384178575, now seen corresponding path program 1 times [2022-01-10 06:22:47,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:47,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [752597537] [2022-01-10 06:22:47,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:47,389 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:47,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:47,400 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:47,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-01-10 06:22:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:47,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 06:22:47,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:47,871 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-01-10 06:22:47,872 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:47,872 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:47,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [752597537] [2022-01-10 06:22:47,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [752597537] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:47,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:47,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:22:47,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547115416] [2022-01-10 06:22:47,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:47,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:22:47,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:47,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:22:47,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:22:47,873 INFO L87 Difference]: Start difference. First operand 463 states and 699 transitions. Second operand has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-01-10 06:22:47,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:47,922 INFO L93 Difference]: Finished difference Result 903 states and 1366 transitions. [2022-01-10 06:22:47,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:22:47,922 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 113 [2022-01-10 06:22:47,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:47,925 INFO L225 Difference]: With dead ends: 903 [2022-01-10 06:22:47,925 INFO L226 Difference]: Without dead ends: 463 [2022-01-10 06:22:47,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:22:47,927 INFO L933 BasicCegarLoop]: 682 mSDtfsCounter, 158 mSDsluCounter, 1867 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 2549 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:47,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 2549 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:47,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2022-01-10 06:22:47,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 463. [2022-01-10 06:22:47,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 356 states have (on average 1.5280898876404494) internal successors, (544), 362 states have internal predecessors, (544), 75 states have call successors, (75), 29 states have call predecessors, (75), 31 states have return successors, (79), 73 states have call predecessors, (79), 74 states have call successors, (79) [2022-01-10 06:22:47,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 698 transitions. [2022-01-10 06:22:47,940 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 698 transitions. Word has length 113 [2022-01-10 06:22:47,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:47,940 INFO L470 AbstractCegarLoop]: Abstraction has 463 states and 698 transitions. [2022-01-10 06:22:47,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-01-10 06:22:47,941 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 698 transitions. [2022-01-10 06:22:47,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 06:22:47,942 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:47,942 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:22:47,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-01-10 06:22:48,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:48,156 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:48,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:48,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1959457356, now seen corresponding path program 2 times [2022-01-10 06:22:48,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:48,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1052402170] [2022-01-10 06:22:48,158 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-10 06:22:48,158 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:48,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:48,159 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:48,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-01-10 06:22:48,342 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-10 06:22:48,342 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 06:22:48,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:22:48,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:48,496 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-01-10 06:22:48,496 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:48,496 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:48,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1052402170] [2022-01-10 06:22:48,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1052402170] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:48,496 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:48,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:22:48,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612540459] [2022-01-10 06:22:48,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:48,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:22:48,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:48,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:22:48,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:48,497 INFO L87 Difference]: Start difference. First operand 463 states and 698 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:48,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:48,513 INFO L93 Difference]: Finished difference Result 728 states and 1073 transitions. [2022-01-10 06:22:48,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:22:48,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2022-01-10 06:22:48,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:48,515 INFO L225 Difference]: With dead ends: 728 [2022-01-10 06:22:48,515 INFO L226 Difference]: Without dead ends: 466 [2022-01-10 06:22:48,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:48,517 INFO L933 BasicCegarLoop]: 689 mSDtfsCounter, 1 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1376 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:48,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1376 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:48,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2022-01-10 06:22:48,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 465. [2022-01-10 06:22:48,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 358 states have (on average 1.5251396648044693) internal successors, (546), 364 states have internal predecessors, (546), 75 states have call successors, (75), 29 states have call predecessors, (75), 31 states have return successors, (79), 73 states have call predecessors, (79), 74 states have call successors, (79) [2022-01-10 06:22:48,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 700 transitions. [2022-01-10 06:22:48,528 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 700 transitions. Word has length 114 [2022-01-10 06:22:48,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:48,528 INFO L470 AbstractCegarLoop]: Abstraction has 465 states and 700 transitions. [2022-01-10 06:22:48,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:48,528 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 700 transitions. [2022-01-10 06:22:48,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-10 06:22:48,539 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:48,539 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:22:48,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-01-10 06:22:48,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:48,742 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:48,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:48,742 INFO L85 PathProgramCache]: Analyzing trace with hash -25490372, now seen corresponding path program 1 times [2022-01-10 06:22:48,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:48,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [632741494] [2022-01-10 06:22:48,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:48,743 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:48,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:48,744 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:48,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-01-10 06:22:48,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:48,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 06:22:48,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:49,212 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-01-10 06:22:49,213 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:49,213 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:49,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [632741494] [2022-01-10 06:22:49,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [632741494] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:49,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:49,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:22:49,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670340723] [2022-01-10 06:22:49,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:49,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:22:49,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:49,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:22:49,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:22:49,214 INFO L87 Difference]: Start difference. First operand 465 states and 700 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, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-01-10 06:22:49,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:49,262 INFO L93 Difference]: Finished difference Result 909 states and 1373 transitions. [2022-01-10 06:22:49,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:22:49,262 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, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 123 [2022-01-10 06:22:49,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:49,264 INFO L225 Difference]: With dead ends: 909 [2022-01-10 06:22:49,264 INFO L226 Difference]: Without dead ends: 467 [2022-01-10 06:22:49,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:22:49,266 INFO L933 BasicCegarLoop]: 683 mSDtfsCounter, 156 mSDsluCounter, 1868 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 2551 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:49,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 2551 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:49,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-01-10 06:22:49,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2022-01-10 06:22:49,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 359 states have (on average 1.5236768802228413) internal successors, (547), 366 states have internal predecessors, (547), 75 states have call successors, (75), 29 states have call predecessors, (75), 32 states have return successors, (81), 73 states have call predecessors, (81), 74 states have call successors, (81) [2022-01-10 06:22:49,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 703 transitions. [2022-01-10 06:22:49,278 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 703 transitions. Word has length 123 [2022-01-10 06:22:49,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:49,278 INFO L470 AbstractCegarLoop]: Abstraction has 467 states and 703 transitions. [2022-01-10 06:22:49,278 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, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-01-10 06:22:49,278 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 703 transitions. [2022-01-10 06:22:49,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-10 06:22:49,279 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:49,279 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:22:49,290 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-01-10 06:22:49,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:49,490 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:49,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:49,490 INFO L85 PathProgramCache]: Analyzing trace with hash 769259546, now seen corresponding path program 1 times [2022-01-10 06:22:49,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:49,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1547187628] [2022-01-10 06:22:49,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:49,491 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:49,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:49,492 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:49,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-01-10 06:22:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:49,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:22:49,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:49,873 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-01-10 06:22:49,874 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:49,874 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:49,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1547187628] [2022-01-10 06:22:49,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1547187628] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:49,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:49,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:22:49,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513058603] [2022-01-10 06:22:49,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:49,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:22:49,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:49,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:22:49,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:22:49,875 INFO L87 Difference]: Start difference. First operand 467 states and 703 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-01-10 06:22:49,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:49,929 INFO L93 Difference]: Finished difference Result 907 states and 1368 transitions. [2022-01-10 06:22:49,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:22:49,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 124 [2022-01-10 06:22:49,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:49,931 INFO L225 Difference]: With dead ends: 907 [2022-01-10 06:22:49,931 INFO L226 Difference]: Without dead ends: 467 [2022-01-10 06:22:49,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:22:49,933 INFO L933 BasicCegarLoop]: 680 mSDtfsCounter, 157 mSDsluCounter, 1858 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 2538 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:49,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 2538 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:49,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-01-10 06:22:49,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2022-01-10 06:22:49,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 359 states have (on average 1.5236768802228413) internal successors, (547), 366 states have internal predecessors, (547), 75 states have call successors, (75), 29 states have call predecessors, (75), 32 states have return successors, (80), 73 states have call predecessors, (80), 74 states have call successors, (80) [2022-01-10 06:22:49,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 702 transitions. [2022-01-10 06:22:49,944 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 702 transitions. Word has length 124 [2022-01-10 06:22:49,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:49,945 INFO L470 AbstractCegarLoop]: Abstraction has 467 states and 702 transitions. [2022-01-10 06:22:49,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-01-10 06:22:49,945 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 702 transitions. [2022-01-10 06:22:49,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-01-10 06:22:49,946 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:49,946 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:22:49,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-01-10 06:22:50,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:50,178 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:50,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:50,179 INFO L85 PathProgramCache]: Analyzing trace with hash -58453765, now seen corresponding path program 2 times [2022-01-10 06:22:50,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:50,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [947678811] [2022-01-10 06:22:50,179 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-10 06:22:50,179 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:50,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:50,188 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:50,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-01-10 06:22:50,381 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-10 06:22:50,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 06:22:50,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:22:50,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:50,568 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-01-10 06:22:50,569 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:50,569 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:50,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [947678811] [2022-01-10 06:22:50,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [947678811] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:50,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:50,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:22:50,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221388789] [2022-01-10 06:22:50,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:50,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:22:50,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:50,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:22:50,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:22:50,570 INFO L87 Difference]: Start difference. First operand 467 states and 702 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-01-10 06:22:50,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:50,633 INFO L93 Difference]: Finished difference Result 909 states and 1373 transitions. [2022-01-10 06:22:50,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:22:50,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 125 [2022-01-10 06:22:50,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:50,636 INFO L225 Difference]: With dead ends: 909 [2022-01-10 06:22:50,636 INFO L226 Difference]: Without dead ends: 469 [2022-01-10 06:22:50,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:22:50,637 INFO L933 BasicCegarLoop]: 681 mSDtfsCounter, 155 mSDsluCounter, 1859 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2540 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:50,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 2540 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:50,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-01-10 06:22:50,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2022-01-10 06:22:50,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 360 states have (on average 1.5222222222222221) internal successors, (548), 368 states have internal predecessors, (548), 75 states have call successors, (75), 29 states have call predecessors, (75), 33 states have return successors, (84), 73 states have call predecessors, (84), 74 states have call successors, (84) [2022-01-10 06:22:50,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 707 transitions. [2022-01-10 06:22:50,648 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 707 transitions. Word has length 125 [2022-01-10 06:22:50,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:50,648 INFO L470 AbstractCegarLoop]: Abstraction has 469 states and 707 transitions. [2022-01-10 06:22:50,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-01-10 06:22:50,648 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 707 transitions. [2022-01-10 06:22:50,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-01-10 06:22:50,649 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:50,649 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:22:50,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-01-10 06:22:50,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:50,860 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:50,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:50,860 INFO L85 PathProgramCache]: Analyzing trace with hash -325835051, now seen corresponding path program 1 times [2022-01-10 06:22:50,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:50,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [926407617] [2022-01-10 06:22:50,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:50,861 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:50,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:50,863 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:50,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-01-10 06:22:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:51,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:22:51,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:51,289 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:22:51,289 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:51,289 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:51,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [926407617] [2022-01-10 06:22:51,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [926407617] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:51,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:51,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:22:51,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966039209] [2022-01-10 06:22:51,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:51,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:22:51,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:51,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:22:51,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:51,290 INFO L87 Difference]: Start difference. First operand 469 states and 707 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:51,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:51,329 INFO L93 Difference]: Finished difference Result 987 states and 1508 transitions. [2022-01-10 06:22:51,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:22:51,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 126 [2022-01-10 06:22:51,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:51,332 INFO L225 Difference]: With dead ends: 987 [2022-01-10 06:22:51,332 INFO L226 Difference]: Without dead ends: 549 [2022-01-10 06:22:51,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:51,333 INFO L933 BasicCegarLoop]: 711 mSDtfsCounter, 142 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:51,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 1355 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:51,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-01-10 06:22:51,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 541. [2022-01-10 06:22:51,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 418 states have (on average 1.5430622009569377) internal successors, (645), 426 states have internal predecessors, (645), 89 states have call successors, (89), 29 states have call predecessors, (89), 33 states have return successors, (100), 87 states have call predecessors, (100), 88 states have call successors, (100) [2022-01-10 06:22:51,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 834 transitions. [2022-01-10 06:22:51,346 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 834 transitions. Word has length 126 [2022-01-10 06:22:51,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:51,346 INFO L470 AbstractCegarLoop]: Abstraction has 541 states and 834 transitions. [2022-01-10 06:22:51,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:51,346 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 834 transitions. [2022-01-10 06:22:51,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-01-10 06:22:51,348 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:51,348 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:22:51,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-01-10 06:22:51,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:51,558 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:51,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:51,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1655400654, now seen corresponding path program 1 times [2022-01-10 06:22:51,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:51,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1665457334] [2022-01-10 06:22:51,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:51,559 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:51,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:51,568 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:51,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-01-10 06:22:51,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:51,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 06:22:51,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:52,042 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-01-10 06:22:52,042 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:52,042 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:52,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1665457334] [2022-01-10 06:22:52,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1665457334] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:52,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:52,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 06:22:52,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132869533] [2022-01-10 06:22:52,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:52,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 06:22:52,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:52,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 06:22:52,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 06:22:52,043 INFO L87 Difference]: Start difference. First operand 541 states and 834 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-01-10 06:22:52,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:52,169 INFO L93 Difference]: Finished difference Result 1238 states and 1938 transitions. [2022-01-10 06:22:52,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 06:22:52,169 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 127 [2022-01-10 06:22:52,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:52,173 INFO L225 Difference]: With dead ends: 1238 [2022-01-10 06:22:52,173 INFO L226 Difference]: Without dead ends: 726 [2022-01-10 06:22:52,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:22:52,175 INFO L933 BasicCegarLoop]: 836 mSDtfsCounter, 817 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 817 SdHoareTripleChecker+Valid, 1573 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:52,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [817 Valid, 1573 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 06:22:52,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2022-01-10 06:22:52,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 549. [2022-01-10 06:22:52,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 425 states have (on average 1.531764705882353) internal successors, (651), 432 states have internal predecessors, (651), 89 states have call successors, (89), 31 states have call predecessors, (89), 34 states have return successors, (96), 87 states have call predecessors, (96), 88 states have call successors, (96) [2022-01-10 06:22:52,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 836 transitions. [2022-01-10 06:22:52,198 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 836 transitions. Word has length 127 [2022-01-10 06:22:52,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:52,198 INFO L470 AbstractCegarLoop]: Abstraction has 549 states and 836 transitions. [2022-01-10 06:22:52,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-01-10 06:22:52,198 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 836 transitions. [2022-01-10 06:22:52,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-01-10 06:22:52,201 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:52,201 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:22:52,225 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-01-10 06:22:52,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:52,412 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:52,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:52,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1171314786, now seen corresponding path program 1 times [2022-01-10 06:22:52,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:52,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [745142492] [2022-01-10 06:22:52,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:52,413 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:52,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:52,414 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:52,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-01-10 06:22:52,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:52,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 06:22:52,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:52,786 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:22:52,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:22:53,044 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:22:53,044 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:53,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [745142492] [2022-01-10 06:22:53,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [745142492] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:22:53,044 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:22:53,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-01-10 06:22:53,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718978366] [2022-01-10 06:22:53,045 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:22:53,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 06:22:53,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:53,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 06:22:53,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:22:53,046 INFO L87 Difference]: Start difference. First operand 549 states and 836 transitions. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-01-10 06:22:53,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:53,403 INFO L93 Difference]: Finished difference Result 1273 states and 2001 transitions. [2022-01-10 06:22:53,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 06:22:53,404 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 128 [2022-01-10 06:22:53,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:53,408 INFO L225 Difference]: With dead ends: 1273 [2022-01-10 06:22:53,408 INFO L226 Difference]: Without dead ends: 1011 [2022-01-10 06:22:53,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-01-10 06:22:53,410 INFO L933 BasicCegarLoop]: 769 mSDtfsCounter, 470 mSDsluCounter, 2881 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 3650 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:53,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [506 Valid, 3650 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 06:22:53,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2022-01-10 06:22:53,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 987. [2022-01-10 06:22:53,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 987 states, 784 states have (on average 1.586734693877551) internal successors, (1244), 791 states have internal predecessors, (1244), 168 states have call successors, (168), 31 states have call predecessors, (168), 34 states have return successors, (185), 166 states have call predecessors, (185), 167 states have call successors, (185) [2022-01-10 06:22:53,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 987 states and 1597 transitions. [2022-01-10 06:22:53,452 INFO L78 Accepts]: Start accepts. Automaton has 987 states and 1597 transitions. Word has length 128 [2022-01-10 06:22:53,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:53,452 INFO L470 AbstractCegarLoop]: Abstraction has 987 states and 1597 transitions. [2022-01-10 06:22:53,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-01-10 06:22:53,452 INFO L276 IsEmpty]: Start isEmpty. Operand 987 states and 1597 transitions. [2022-01-10 06:22:53,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-10 06:22:53,455 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:53,455 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-01-10 06:22:53,467 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-01-10 06:22:53,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:53,665 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:53,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:53,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1641132932, now seen corresponding path program 1 times [2022-01-10 06:22:53,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:53,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [485422034] [2022-01-10 06:22:53,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:53,666 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:53,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:53,668 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:53,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-01-10 06:22:53,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:53,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:22:53,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:54,104 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:22:54,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:54,105 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:54,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [485422034] [2022-01-10 06:22:54,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [485422034] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:54,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:54,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:22:54,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450495705] [2022-01-10 06:22:54,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:54,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:22:54,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:54,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:22:54,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:54,106 INFO L87 Difference]: Start difference. First operand 987 states and 1597 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:54,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:54,201 INFO L93 Difference]: Finished difference Result 2311 states and 3813 transitions. [2022-01-10 06:22:54,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:22:54,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2022-01-10 06:22:54,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:54,207 INFO L225 Difference]: With dead ends: 2311 [2022-01-10 06:22:54,207 INFO L226 Difference]: Without dead ends: 1410 [2022-01-10 06:22:54,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:54,211 INFO L933 BasicCegarLoop]: 710 mSDtfsCounter, 136 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:54,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 1390 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:54,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2022-01-10 06:22:54,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1402. [2022-01-10 06:22:54,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1120 states have (on average 1.6107142857142858) internal successors, (1804), 1127 states have internal predecessors, (1804), 247 states have call successors, (247), 31 states have call predecessors, (247), 34 states have return successors, (274), 245 states have call predecessors, (274), 246 states have call successors, (274) [2022-01-10 06:22:54,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 2325 transitions. [2022-01-10 06:22:54,343 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 2325 transitions. Word has length 130 [2022-01-10 06:22:54,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:54,359 INFO L470 AbstractCegarLoop]: Abstraction has 1402 states and 2325 transitions. [2022-01-10 06:22:54,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:54,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 2325 transitions. [2022-01-10 06:22:54,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-01-10 06:22:54,364 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:54,364 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-01-10 06:22:54,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-01-10 06:22:54,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:54,574 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:54,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:54,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1218340846, now seen corresponding path program 1 times [2022-01-10 06:22:54,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:54,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1639131860] [2022-01-10 06:22:54,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:54,576 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:54,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:54,577 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:54,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-01-10 06:22:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:54,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:22:54,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:55,034 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:22:55,034 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:55,034 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:55,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1639131860] [2022-01-10 06:22:55,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1639131860] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:55,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:55,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:22:55,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935344917] [2022-01-10 06:22:55,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:55,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:22:55,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:55,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:22:55,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:55,035 INFO L87 Difference]: Start difference. First operand 1402 states and 2325 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:55,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:55,156 INFO L93 Difference]: Finished difference Result 3345 states and 5595 transitions. [2022-01-10 06:22:55,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:22:55,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 131 [2022-01-10 06:22:55,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:55,180 INFO L225 Difference]: With dead ends: 3345 [2022-01-10 06:22:55,180 INFO L226 Difference]: Without dead ends: 2082 [2022-01-10 06:22:55,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:55,192 INFO L933 BasicCegarLoop]: 705 mSDtfsCounter, 134 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1385 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:55,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 1385 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:55,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2082 states. [2022-01-10 06:22:55,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2082 to 2074. [2022-01-10 06:22:55,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2074 states, 1673 states have (on average 1.6204423191870891) internal successors, (2711), 1680 states have internal predecessors, (2711), 366 states have call successors, (366), 31 states have call predecessors, (366), 34 states have return successors, (393), 364 states have call predecessors, (393), 365 states have call successors, (393) [2022-01-10 06:22:55,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2074 states to 2074 states and 3470 transitions. [2022-01-10 06:22:55,368 INFO L78 Accepts]: Start accepts. Automaton has 2074 states and 3470 transitions. Word has length 131 [2022-01-10 06:22:55,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:55,368 INFO L470 AbstractCegarLoop]: Abstraction has 2074 states and 3470 transitions. [2022-01-10 06:22:55,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:55,368 INFO L276 IsEmpty]: Start isEmpty. Operand 2074 states and 3470 transitions. [2022-01-10 06:22:55,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 06:22:55,397 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:55,398 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-01-10 06:22:55,425 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-01-10 06:22:55,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:55,608 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:55,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:55,608 INFO L85 PathProgramCache]: Analyzing trace with hash 247812782, now seen corresponding path program 1 times [2022-01-10 06:22:55,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:55,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1544744330] [2022-01-10 06:22:55,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:55,609 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:55,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:55,610 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:55,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-01-10 06:22:55,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:55,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:22:55,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:56,129 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:22:56,129 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:56,129 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:56,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1544744330] [2022-01-10 06:22:56,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1544744330] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:56,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:56,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:22:56,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097525585] [2022-01-10 06:22:56,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:56,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:22:56,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:56,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:22:56,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:56,130 INFO L87 Difference]: Start difference. First operand 2074 states and 3470 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:56,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:56,217 INFO L93 Difference]: Finished difference Result 4919 states and 8307 transitions. [2022-01-10 06:22:56,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:22:56,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2022-01-10 06:22:56,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:56,229 INFO L225 Difference]: With dead ends: 4919 [2022-01-10 06:22:56,230 INFO L226 Difference]: Without dead ends: 3117 [2022-01-10 06:22:56,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:56,236 INFO L933 BasicCegarLoop]: 701 mSDtfsCounter, 132 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 1378 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:56,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 1378 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:56,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3117 states. [2022-01-10 06:22:56,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3117 to 3109. [2022-01-10 06:22:56,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3109 states, 2546 states have (on average 1.6280439905734485) internal successors, (4145), 2553 states have internal predecessors, (4145), 528 states have call successors, (528), 31 states have call predecessors, (528), 34 states have return successors, (571), 526 states have call predecessors, (571), 527 states have call successors, (571) [2022-01-10 06:22:56,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3109 states to 3109 states and 5244 transitions. [2022-01-10 06:22:56,407 INFO L78 Accepts]: Start accepts. Automaton has 3109 states and 5244 transitions. Word has length 132 [2022-01-10 06:22:56,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:56,407 INFO L470 AbstractCegarLoop]: Abstraction has 3109 states and 5244 transitions. [2022-01-10 06:22:56,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:56,407 INFO L276 IsEmpty]: Start isEmpty. Operand 3109 states and 5244 transitions. [2022-01-10 06:22:56,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-01-10 06:22:56,417 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:56,417 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-01-10 06:22:56,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-01-10 06:22:56,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:56,630 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:56,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:56,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1790435695, now seen corresponding path program 1 times [2022-01-10 06:22:56,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:56,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [934091849] [2022-01-10 06:22:56,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:56,630 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:56,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:56,631 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:56,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-01-10 06:22:56,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:56,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:22:56,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:57,016 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:22:57,016 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:57,016 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:57,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [934091849] [2022-01-10 06:22:57,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [934091849] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:57,016 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:57,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:22:57,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354735447] [2022-01-10 06:22:57,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:57,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:22:57,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:57,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:22:57,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:57,019 INFO L87 Difference]: Start difference. First operand 3109 states and 5244 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:57,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:57,273 INFO L93 Difference]: Finished difference Result 7415 states and 12611 transitions. [2022-01-10 06:22:57,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:22:57,274 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 133 [2022-01-10 06:22:57,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:57,292 INFO L225 Difference]: With dead ends: 7415 [2022-01-10 06:22:57,293 INFO L226 Difference]: Without dead ends: 4794 [2022-01-10 06:22:57,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:57,302 INFO L933 BasicCegarLoop]: 701 mSDtfsCounter, 130 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1378 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:57,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 1378 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:57,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4794 states. [2022-01-10 06:22:57,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4794 to 4786. [2022-01-10 06:22:57,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4786 states, 3978 states have (on average 1.6334841628959276) internal successors, (6498), 3985 states have internal predecessors, (6498), 773 states have call successors, (773), 31 states have call predecessors, (773), 34 states have return successors, (842), 771 states have call predecessors, (842), 772 states have call successors, (842) [2022-01-10 06:22:57,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4786 states to 4786 states and 8113 transitions. [2022-01-10 06:22:57,493 INFO L78 Accepts]: Start accepts. Automaton has 4786 states and 8113 transitions. Word has length 133 [2022-01-10 06:22:57,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:57,494 INFO L470 AbstractCegarLoop]: Abstraction has 4786 states and 8113 transitions. [2022-01-10 06:22:57,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:57,495 INFO L276 IsEmpty]: Start isEmpty. Operand 4786 states and 8113 transitions. [2022-01-10 06:22:57,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-10 06:22:57,541 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:57,541 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:22:57,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-01-10 06:22:57,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:57,751 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:57,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:57,752 INFO L85 PathProgramCache]: Analyzing trace with hash 379076722, now seen corresponding path program 1 times [2022-01-10 06:22:57,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:57,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1947299086] [2022-01-10 06:22:57,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:57,753 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:57,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:57,754 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:57,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-01-10 06:22:57,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:58,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:22:58,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:58,247 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:22:58,247 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:58,248 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:58,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1947299086] [2022-01-10 06:22:58,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1947299086] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:58,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:58,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:22:58,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031446567] [2022-01-10 06:22:58,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:58,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:22:58,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:58,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:22:58,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:58,250 INFO L87 Difference]: Start difference. First operand 4786 states and 8113 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:58,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:58,498 INFO L93 Difference]: Finished difference Result 11585 states and 19795 transitions. [2022-01-10 06:22:58,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:22:58,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 134 [2022-01-10 06:22:58,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:58,540 INFO L225 Difference]: With dead ends: 11585 [2022-01-10 06:22:58,540 INFO L226 Difference]: Without dead ends: 7615 [2022-01-10 06:22:58,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:58,551 INFO L933 BasicCegarLoop]: 705 mSDtfsCounter, 128 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1379 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:58,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 1379 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:58,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7615 states. [2022-01-10 06:22:58,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7615 to 7607. [2022-01-10 06:22:58,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7607 states, 6306 states have (on average 1.6319378369806534) internal successors, (10291), 6313 states have internal predecessors, (10291), 1266 states have call successors, (1266), 31 states have call predecessors, (1266), 34 states have return successors, (1379), 1264 states have call predecessors, (1379), 1265 states have call successors, (1379) [2022-01-10 06:22:58,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7607 states to 7607 states and 12936 transitions. [2022-01-10 06:22:58,889 INFO L78 Accepts]: Start accepts. Automaton has 7607 states and 12936 transitions. Word has length 134 [2022-01-10 06:22:58,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:58,889 INFO L470 AbstractCegarLoop]: Abstraction has 7607 states and 12936 transitions. [2022-01-10 06:22:58,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:58,890 INFO L276 IsEmpty]: Start isEmpty. Operand 7607 states and 12936 transitions. [2022-01-10 06:22:58,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-10 06:22:58,906 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:58,907 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:22:58,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-01-10 06:22:59,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:59,119 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:59,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:59,119 INFO L85 PathProgramCache]: Analyzing trace with hash 468528333, now seen corresponding path program 1 times [2022-01-10 06:22:59,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:59,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [407902630] [2022-01-10 06:22:59,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:59,120 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:59,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:59,121 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:59,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-01-10 06:22:59,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:59,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:22:59,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:59,508 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:22:59,508 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:59,508 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:59,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [407902630] [2022-01-10 06:22:59,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [407902630] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:59,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:59,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:22:59,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277030712] [2022-01-10 06:22:59,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:59,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:22:59,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:59,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:22:59,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:59,510 INFO L87 Difference]: Start difference. First operand 7607 states and 12936 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:59,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:59,961 INFO L93 Difference]: Finished difference Result 19144 states and 32792 transitions. [2022-01-10 06:22:59,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:22:59,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 135 [2022-01-10 06:22:59,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:23:00,015 INFO L225 Difference]: With dead ends: 19144 [2022-01-10 06:23:00,015 INFO L226 Difference]: Without dead ends: 12750 [2022-01-10 06:23:00,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:23:00,034 INFO L933 BasicCegarLoop]: 703 mSDtfsCounter, 126 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:23:00,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 1383 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:23:00,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12750 states. [2022-01-10 06:23:00,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12750 to 12742. [2022-01-10 06:23:00,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12742 states, 10619 states have (on average 1.6326396082493644) internal successors, (17337), 10626 states have internal predecessors, (17337), 2088 states have call successors, (2088), 31 states have call predecessors, (2088), 34 states have return successors, (2279), 2086 states have call predecessors, (2279), 2087 states have call successors, (2279) [2022-01-10 06:23:00,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12742 states to 12742 states and 21704 transitions. [2022-01-10 06:23:00,657 INFO L78 Accepts]: Start accepts. Automaton has 12742 states and 21704 transitions. Word has length 135 [2022-01-10 06:23:00,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:23:00,657 INFO L470 AbstractCegarLoop]: Abstraction has 12742 states and 21704 transitions. [2022-01-10 06:23:00,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:23:00,657 INFO L276 IsEmpty]: Start isEmpty. Operand 12742 states and 21704 transitions. [2022-01-10 06:23:00,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-01-10 06:23:00,679 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:23:00,679 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:23:00,692 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2022-01-10 06:23:00,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:23:00,891 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:23:00,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:23:00,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1829431364, now seen corresponding path program 1 times [2022-01-10 06:23:00,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:23:00,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1906868899] [2022-01-10 06:23:00,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:23:00,892 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:23:00,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:23:00,897 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:23:00,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-01-10 06:23:01,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:23:01,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:23:01,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:23:01,311 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:23:01,311 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:23:01,312 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:23:01,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1906868899] [2022-01-10 06:23:01,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1906868899] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:23:01,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:23:01,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:23:01,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854008483] [2022-01-10 06:23:01,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:23:01,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:23:01,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:23:01,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:23:01,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:23:01,313 INFO L87 Difference]: Start difference. First operand 12742 states and 21704 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:23:02,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:23:02,061 INFO L93 Difference]: Finished difference Result 30522 states and 51896 transitions. [2022-01-10 06:23:02,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:23:02,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 136 [2022-01-10 06:23:02,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:23:02,210 INFO L225 Difference]: With dead ends: 30522 [2022-01-10 06:23:02,211 INFO L226 Difference]: Without dead ends: 19991 [2022-01-10 06:23:02,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:23:02,237 INFO L933 BasicCegarLoop]: 708 mSDtfsCounter, 124 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1361 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:23:02,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 1361 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:23:02,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19991 states. [2022-01-10 06:23:03,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19991 to 19983. [2022-01-10 06:23:03,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19983 states, 16657 states have (on average 1.6069520321786637) internal successors, (26767), 16664 states have internal predecessors, (26767), 3291 states have call successors, (3291), 31 states have call predecessors, (3291), 34 states have return successors, (3626), 3289 states have call predecessors, (3626), 3290 states have call successors, (3626) [2022-01-10 06:23:03,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19983 states to 19983 states and 33684 transitions. [2022-01-10 06:23:03,240 INFO L78 Accepts]: Start accepts. Automaton has 19983 states and 33684 transitions. Word has length 136 [2022-01-10 06:23:03,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:23:03,241 INFO L470 AbstractCegarLoop]: Abstraction has 19983 states and 33684 transitions. [2022-01-10 06:23:03,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:23:03,241 INFO L276 IsEmpty]: Start isEmpty. Operand 19983 states and 33684 transitions. [2022-01-10 06:23:03,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-10 06:23:03,268 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:23:03,268 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:23:03,281 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-01-10 06:23:03,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:23:03,479 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:23:03,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:23:03,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1684743724, now seen corresponding path program 1 times [2022-01-10 06:23:03,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:23:03,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1954620581] [2022-01-10 06:23:03,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:23:03,480 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:23:03,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:23:03,481 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:23:03,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-01-10 06:23:03,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:23:03,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:23:03,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:23:03,863 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:23:03,864 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:23:03,864 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:23:03,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1954620581] [2022-01-10 06:23:03,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1954620581] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:23:03,864 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:23:03,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:23:03,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317563107] [2022-01-10 06:23:03,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:23:03,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:23:03,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:23:03,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:23:03,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:23:03,866 INFO L87 Difference]: Start difference. First operand 19983 states and 33684 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:23:05,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:23:05,054 INFO L93 Difference]: Finished difference Result 52762 states and 89284 transitions. [2022-01-10 06:23:05,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:23:05,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 137 [2022-01-10 06:23:05,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:23:05,198 INFO L225 Difference]: With dead ends: 52762 [2022-01-10 06:23:05,198 INFO L226 Difference]: Without dead ends: 35660 [2022-01-10 06:23:05,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:23:05,367 INFO L933 BasicCegarLoop]: 703 mSDtfsCounter, 122 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:23:05,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 1383 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:23:05,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35660 states. [2022-01-10 06:23:07,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35660 to 35652. [2022-01-10 06:23:07,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35652 states, 29876 states have (on average 1.603896103896104) internal successors, (47918), 29883 states have internal predecessors, (47918), 5741 states have call successors, (5741), 31 states have call predecessors, (5741), 34 states have return successors, (6350), 5739 states have call predecessors, (6350), 5740 states have call successors, (6350) [2022-01-10 06:23:07,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35652 states to 35652 states and 60009 transitions. [2022-01-10 06:23:07,177 INFO L78 Accepts]: Start accepts. Automaton has 35652 states and 60009 transitions. Word has length 137 [2022-01-10 06:23:07,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:23:07,178 INFO L470 AbstractCegarLoop]: Abstraction has 35652 states and 60009 transitions. [2022-01-10 06:23:07,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:23:07,178 INFO L276 IsEmpty]: Start isEmpty. Operand 35652 states and 60009 transitions. [2022-01-10 06:23:07,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-01-10 06:23:07,208 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:23:07,208 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-01-10 06:23:07,242 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2022-01-10 06:23:07,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:23:07,419 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:23:07,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:23:07,419 INFO L85 PathProgramCache]: Analyzing trace with hash 283680618, now seen corresponding path program 1 times [2022-01-10 06:23:07,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:23:07,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [439107061] [2022-01-10 06:23:07,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:23:07,420 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:23:07,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:23:07,421 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:23:07,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-01-10 06:23:07,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:23:07,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:23:07,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:23:07,826 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:23:07,826 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:23:07,826 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:23:07,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [439107061] [2022-01-10 06:23:07,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [439107061] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:23:07,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:23:07,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:23:07,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842462415] [2022-01-10 06:23:07,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:23:07,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:23:07,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:23:07,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:23:07,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:23:07,829 INFO L87 Difference]: Start difference. First operand 35652 states and 60009 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:23:10,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:23:10,575 INFO L93 Difference]: Finished difference Result 97214 states and 164126 transitions. [2022-01-10 06:23:10,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:23:10,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 138 [2022-01-10 06:23:10,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:23:10,933 INFO L225 Difference]: With dead ends: 97214 [2022-01-10 06:23:10,933 INFO L226 Difference]: Without dead ends: 65391 [2022-01-10 06:23:11,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:23:11,013 INFO L933 BasicCegarLoop]: 710 mSDtfsCounter, 120 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1391 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:23:11,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 1391 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:23:11,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65391 states. [2022-01-10 06:23:14,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65391 to 65383. [2022-01-10 06:23:14,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65383 states, 55094 states have (on average 1.5996841761353324) internal successors, (88133), 55101 states have internal predecessors, (88133), 10254 states have call successors, (10254), 31 states have call predecessors, (10254), 34 states have return successors, (11395), 10252 states have call predecessors, (11395), 10253 states have call successors, (11395) [2022-01-10 06:23:14,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65383 states to 65383 states and 109782 transitions. [2022-01-10 06:23:14,397 INFO L78 Accepts]: Start accepts. Automaton has 65383 states and 109782 transitions. Word has length 138 [2022-01-10 06:23:14,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:23:14,398 INFO L470 AbstractCegarLoop]: Abstraction has 65383 states and 109782 transitions. [2022-01-10 06:23:14,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:23:14,398 INFO L276 IsEmpty]: Start isEmpty. Operand 65383 states and 109782 transitions. [2022-01-10 06:23:14,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-01-10 06:23:14,483 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:23:14,483 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-01-10 06:23:14,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-01-10 06:23:14,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:23:14,684 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:23:14,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:23:14,684 INFO L85 PathProgramCache]: Analyzing trace with hash -254866548, now seen corresponding path program 1 times [2022-01-10 06:23:14,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:23:14,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1294408034] [2022-01-10 06:23:14,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:23:14,685 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:23:14,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:23:14,686 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:23:14,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-01-10 06:23:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:23:14,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:23:14,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:23:15,083 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:23:15,083 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:23:15,083 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:23:15,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1294408034] [2022-01-10 06:23:15,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1294408034] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:23:15,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:23:15,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:23:15,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839407316] [2022-01-10 06:23:15,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:23:15,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:23:15,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:23:15,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:23:15,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:23:15,092 INFO L87 Difference]: Start difference. First operand 65383 states and 109782 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:23:20,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:23:20,024 INFO L93 Difference]: Finished difference Result 122618 states and 206219 transitions. [2022-01-10 06:23:20,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:23:20,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 139 [2022-01-10 06:23:20,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:23:20,513 INFO L225 Difference]: With dead ends: 122618 [2022-01-10 06:23:20,513 INFO L226 Difference]: Without dead ends: 122356 [2022-01-10 06:23:20,561 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:23:20,562 INFO L933 BasicCegarLoop]: 703 mSDtfsCounter, 118 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:23:20,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 1383 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:23:20,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122356 states. [2022-01-10 06:23:26,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122356 to 122348. [2022-01-10 06:23:26,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122348 states, 103691 states have (on average 1.594313874878244) internal successors, (165316), 103698 states have internal predecessors, (165316), 18622 states have call successors, (18622), 31 states have call predecessors, (18622), 34 states have return successors, (20809), 18620 states have call predecessors, (20809), 18621 states have call successors, (20809) [2022-01-10 06:23:27,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122348 states to 122348 states and 204747 transitions. [2022-01-10 06:23:27,057 INFO L78 Accepts]: Start accepts. Automaton has 122348 states and 204747 transitions. Word has length 139 [2022-01-10 06:23:27,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:23:27,057 INFO L470 AbstractCegarLoop]: Abstraction has 122348 states and 204747 transitions. [2022-01-10 06:23:27,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:23:27,057 INFO L276 IsEmpty]: Start isEmpty. Operand 122348 states and 204747 transitions. [2022-01-10 06:23:27,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-01-10 06:23:27,102 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:23:27,103 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-01-10 06:23:27,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-01-10 06:23:27,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:23:27,308 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:23:27,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:23:27,308 INFO L85 PathProgramCache]: Analyzing trace with hash 536134027, now seen corresponding path program 1 times [2022-01-10 06:23:27,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:23:27,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1478440599] [2022-01-10 06:23:27,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:23:27,309 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:23:27,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:23:27,310 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:23:27,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-01-10 06:23:27,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:23:27,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-10 06:23:27,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:23:27,762 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-10 06:23:27,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:23:28,114 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-01-10 06:23:28,114 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:23:28,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1478440599] [2022-01-10 06:23:28,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1478440599] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:23:28,115 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:23:28,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-01-10 06:23:28,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864897980] [2022-01-10 06:23:28,115 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:23:28,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-10 06:23:28,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:23:28,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-10 06:23:28,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-01-10 06:23:28,116 INFO L87 Difference]: Start difference. First operand 122348 states and 204747 transitions. Second operand has 16 states, 16 states have (on average 11.0) internal successors, (176), 14 states have internal predecessors, (176), 4 states have call successors, (31), 6 states have call predecessors, (31), 9 states have return successors, (27), 6 states have call predecessors, (27), 4 states have call successors, (27) [2022-01-10 06:23:46,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:23:46,590 INFO L93 Difference]: Finished difference Result 360288 states and 609695 transitions. [2022-01-10 06:23:46,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-10 06:23:46,593 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 11.0) internal successors, (176), 14 states have internal predecessors, (176), 4 states have call successors, (31), 6 states have call predecessors, (31), 9 states have return successors, (27), 6 states have call predecessors, (27), 4 states have call successors, (27) Word has length 140 [2022-01-10 06:23:46,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:23:48,855 INFO L225 Difference]: With dead ends: 360288 [2022-01-10 06:23:48,855 INFO L226 Difference]: Without dead ends: 360034 [2022-01-10 06:23:49,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=657, Unknown=0, NotChecked=0, Total=812 [2022-01-10 06:23:49,261 INFO L933 BasicCegarLoop]: 836 mSDtfsCounter, 2936 mSDsluCounter, 3509 mSDsCounter, 0 mSdLazyCounter, 7333 mSolverCounterSat, 905 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3020 SdHoareTripleChecker+Valid, 4345 SdHoareTripleChecker+Invalid, 8238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 905 IncrementalHoareTripleChecker+Valid, 7333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-01-10 06:23:49,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3020 Valid, 4345 Invalid, 8238 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [905 Valid, 7333 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time]