/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_spec11_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 06:20:59,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 06:20:59,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 06:20:59,534 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 06:20:59,535 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 06:20:59,536 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 06:20:59,536 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 06:20:59,538 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 06:20:59,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 06:20:59,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 06:20:59,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 06:20:59,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 06:20:59,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 06:20:59,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 06:20:59,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 06:20:59,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 06:20:59,548 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 06:20:59,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 06:20:59,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 06:20:59,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 06:20:59,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 06:20:59,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 06:20:59,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 06:20:59,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 06:20:59,565 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 06:20:59,566 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 06:20:59,566 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 06:20:59,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 06:20:59,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 06:20:59,567 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 06:20:59,567 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 06:20:59,568 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 06:20:59,568 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 06:20:59,569 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 06:20:59,569 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 06:20:59,569 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 06:20:59,570 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 06:20:59,570 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 06:20:59,570 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 06:20:59,571 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 06:20:59,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 06:20:59,575 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 06:20:59,590 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 06:20:59,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 06:20:59,591 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 06:20:59,591 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 06:20:59,591 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 06:20:59,592 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 06:20:59,592 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 06:20:59,592 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 06:20:59,592 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 06:20:59,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 06:20:59,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 06:20:59,593 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 06:20:59,593 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 06:20:59,593 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 06:20:59,593 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 06:20:59,593 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 06:20:59,593 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 06:20:59,593 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 06:20:59,594 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 06:20:59,594 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 06:20:59,594 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 06:20:59,594 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 06:20:59,594 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 06:20:59,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:20:59,595 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 06:20:59,595 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 06:20:59,595 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 06:20:59,595 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 06:20:59,596 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 06:20:59,596 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 06:20:59,596 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 06:20:59,596 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 06:20:59,596 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 06:20:59,596 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 06:20:59,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 06:20:59,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 06:20:59,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 06:20:59,777 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 06:20:59,777 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 06:20:59,778 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product32.cil.c [2022-01-10 06:20:59,832 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec1ba40f8/333a8ad76f794a8dae864978870f489f/FLAG105c75295 [2022-01-10 06:21:00,330 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 06:21:00,330 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product32.cil.c [2022-01-10 06:21:00,358 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec1ba40f8/333a8ad76f794a8dae864978870f489f/FLAG105c75295 [2022-01-10 06:21:00,864 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec1ba40f8/333a8ad76f794a8dae864978870f489f [2022-01-10 06:21:00,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 06:21:00,869 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 06:21:00,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 06:21:00,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 06:21:00,874 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 06:21:00,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:21:00" (1/1) ... [2022-01-10 06:21:00,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7510d128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:21:00, skipping insertion in model container [2022-01-10 06:21:00,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:21:00" (1/1) ... [2022-01-10 06:21:00,896 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 06:21:00,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:21:01,306 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_spec11_product32.cil.c[45976,45989] [2022-01-10 06:21:01,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:21:01,347 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 06:21:01,358 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:21:01,405 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_spec11_product32.cil.c[45976,45989] [2022-01-10 06:21:01,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:21:01,439 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 06:21:01,492 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_spec11_product32.cil.c[45976,45989] [2022-01-10 06:21:01,509 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:21:01,538 INFO L208 MainTranslator]: Completed translation [2022-01-10 06:21:01,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:21:01 WrapperNode [2022-01-10 06:21:01,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 06:21:01,539 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 06:21:01,540 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 06:21:01,540 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 06:21:01,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:21:01" (1/1) ... [2022-01-10 06:21:01,583 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:21:01" (1/1) ... [2022-01-10 06:21:01,627 INFO L137 Inliner]: procedures = 136, calls = 236, calls flagged for inlining = 61, calls inlined = 53, statements flattened = 927 [2022-01-10 06:21:01,627 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 06:21:01,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 06:21:01,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 06:21:01,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 06:21:01,633 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:21:01" (1/1) ... [2022-01-10 06:21:01,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:21:01" (1/1) ... [2022-01-10 06:21:01,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:21:01" (1/1) ... [2022-01-10 06:21:01,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:21:01" (1/1) ... [2022-01-10 06:21:01,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:21:01" (1/1) ... [2022-01-10 06:21:01,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:21:01" (1/1) ... [2022-01-10 06:21:01,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:21:01" (1/1) ... [2022-01-10 06:21:01,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 06:21:01,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 06:21:01,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 06:21:01,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 06:21:01,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:21:01" (1/1) ... [2022-01-10 06:21:01,695 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:21:01,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 06:21:01,716 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 06:21:01,734 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 06:21:01,746 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-01-10 06:21:01,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-01-10 06:21:01,747 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-01-10 06:21:01,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-01-10 06:21:01,747 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-01-10 06:21:01,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-01-10 06:21:01,747 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-01-10 06:21:01,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-01-10 06:21:01,747 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-01-10 06:21:01,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-01-10 06:21:01,747 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-01-10 06:21:01,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-01-10 06:21:01,747 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-01-10 06:21:01,747 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-01-10 06:21:01,748 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-01-10 06:21:01,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-01-10 06:21:01,748 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-01-10 06:21:01,748 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-01-10 06:21:01,748 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-01-10 06:21:01,748 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-01-10 06:21:01,748 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-01-10 06:21:01,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-01-10 06:21:01,748 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-01-10 06:21:01,748 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-01-10 06:21:01,748 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-01-10 06:21:01,748 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-01-10 06:21:01,748 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-10 06:21:01,748 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-01-10 06:21:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-01-10 06:21:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-01-10 06:21:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-01-10 06:21:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 06:21:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-01-10 06:21:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-01-10 06:21:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-01-10 06:21:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-01-10 06:21:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-01-10 06:21:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-01-10 06:21:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-01-10 06:21:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-01-10 06:21:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-01-10 06:21:01,750 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-01-10 06:21:01,750 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-01-10 06:21:01,750 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-01-10 06:21:01,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 06:21:01,750 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-01-10 06:21:01,751 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-01-10 06:21:01,751 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-01-10 06:21:01,751 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-01-10 06:21:01,751 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-01-10 06:21:01,751 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-01-10 06:21:01,751 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-01-10 06:21:01,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-01-10 06:21:01,752 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-01-10 06:21:01,752 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-01-10 06:21:01,752 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-01-10 06:21:01,752 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-01-10 06:21:01,752 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-01-10 06:21:01,753 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-01-10 06:21:01,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 06:21:01,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 06:21:02,012 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 06:21:02,015 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 06:21:02,673 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 06:21:02,687 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 06:21:02,687 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 06:21:02,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:21:02 BoogieIcfgContainer [2022-01-10 06:21:02,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 06:21:02,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 06:21:02,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 06:21:02,695 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 06:21:02,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:21:00" (1/3) ... [2022-01-10 06:21:02,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@671ff69e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:21:02, skipping insertion in model container [2022-01-10 06:21:02,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:21:01" (2/3) ... [2022-01-10 06:21:02,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@671ff69e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:21:02, skipping insertion in model container [2022-01-10 06:21:02,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:21:02" (3/3) ... [2022-01-10 06:21:02,697 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec11_product32.cil.c [2022-01-10 06:21:02,701 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 06:21:02,702 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 06:21:02,750 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 06:21:02,755 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 06:21:02,756 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 06:21:02,783 INFO L276 IsEmpty]: Start isEmpty. Operand has 422 states, 328 states have (on average 1.5518292682926829) internal successors, (509), 333 states have internal predecessors, (509), 64 states have call successors, (64), 28 states have call predecessors, (64), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2022-01-10 06:21:02,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-01-10 06:21:02,799 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:21:02,800 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:21:02,801 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:21:02,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:21:02,804 INFO L85 PathProgramCache]: Analyzing trace with hash -943733623, now seen corresponding path program 1 times [2022-01-10 06:21:02,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:21:02,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930137570] [2022-01-10 06:21:02,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:21:02,816 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:21:02,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:21:02,820 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 06:21:02,834 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 06:21:03,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:21:03,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 06:21:03,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:21:03,467 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-01-10 06:21:03,467 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:21:03,468 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:21:03,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [930137570] [2022-01-10 06:21:03,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [930137570] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:21:03,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:21:03,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:21:03,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429857376] [2022-01-10 06:21:03,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:21:03,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 06:21:03,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:21:03,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 06:21:03,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 06:21:03,501 INFO L87 Difference]: Start difference. First operand has 422 states, 328 states have (on average 1.5518292682926829) internal successors, (509), 333 states have internal predecessors, (509), 64 states have call successors, (64), 28 states have call predecessors, (64), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) Second operand has 2 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-01-10 06:21:03,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:21:03,573 INFO L93 Difference]: Finished difference Result 651 states and 964 transitions. [2022-01-10 06:21:03,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 06:21:03,576 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 167 [2022-01-10 06:21:03,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:21:03,594 INFO L225 Difference]: With dead ends: 651 [2022-01-10 06:21:03,595 INFO L226 Difference]: Without dead ends: 415 [2022-01-10 06:21:03,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 166 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 06:21:03,605 INFO L933 BasicCegarLoop]: 633 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, 633 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 06:21:03,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:21:03,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2022-01-10 06:21:03,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2022-01-10 06:21:03,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 322 states have (on average 1.546583850931677) internal successors, (498), 326 states have internal predecessors, (498), 64 states have call successors, (64), 28 states have call predecessors, (64), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2022-01-10 06:21:03,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 625 transitions. [2022-01-10 06:21:03,684 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 625 transitions. Word has length 167 [2022-01-10 06:21:03,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:21:03,685 INFO L470 AbstractCegarLoop]: Abstraction has 415 states and 625 transitions. [2022-01-10 06:21:03,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-01-10 06:21:03,686 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 625 transitions. [2022-01-10 06:21:03,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-01-10 06:21:03,695 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:21:03,695 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:21:03,712 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-01-10 06:21:03,911 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 06:21:03,912 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:21:03,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:21:03,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1767755696, now seen corresponding path program 1 times [2022-01-10 06:21:03,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:21:03,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774724139] [2022-01-10 06:21:03,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:21:03,914 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:21:03,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:21:03,915 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 06:21:03,916 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 06:21:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:21:04,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 669 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 06:21:04,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:21:04,363 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-10 06:21:04,363 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:21:04,363 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:21:04,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774724139] [2022-01-10 06:21:04,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1774724139] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:21:04,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:21:04,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:21:04,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303594444] [2022-01-10 06:21:04,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:21:04,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:21:04,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:21:04,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:21:04,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:21:04,366 INFO L87 Difference]: Start difference. First operand 415 states and 625 transitions. Second operand has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2022-01-10 06:21:04,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:21:04,420 INFO L93 Difference]: Finished difference Result 821 states and 1240 transitions. [2022-01-10 06:21:04,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:21:04,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 149 [2022-01-10 06:21:04,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:21:04,424 INFO L225 Difference]: With dead ends: 821 [2022-01-10 06:21:04,424 INFO L226 Difference]: Without dead ends: 417 [2022-01-10 06:21:04,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 145 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 06:21:04,426 INFO L933 BasicCegarLoop]: 616 mSDtfsCounter, 152 mSDsluCounter, 1674 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2290 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 06:21:04,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 2290 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:21:04,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2022-01-10 06:21:04,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 417. [2022-01-10 06:21:04,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 323 states have (on average 1.5448916408668731) internal successors, (499), 328 states have internal predecessors, (499), 64 states have call successors, (64), 28 states have call predecessors, (64), 29 states have return successors, (65), 62 states have call predecessors, (65), 63 states have call successors, (65) [2022-01-10 06:21:04,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 628 transitions. [2022-01-10 06:21:04,440 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 628 transitions. Word has length 149 [2022-01-10 06:21:04,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:21:04,441 INFO L470 AbstractCegarLoop]: Abstraction has 417 states and 628 transitions. [2022-01-10 06:21:04,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2022-01-10 06:21:04,441 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 628 transitions. [2022-01-10 06:21:04,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-01-10 06:21:04,443 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:21:04,443 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:21:04,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-01-10 06:21:04,654 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 06:21:04,656 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:21:04,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:21:04,657 INFO L85 PathProgramCache]: Analyzing trace with hash -471086619, now seen corresponding path program 1 times [2022-01-10 06:21:04,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:21:04,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1173700125] [2022-01-10 06:21:04,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:21:04,658 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:21:04,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:21:04,659 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 06:21:04,663 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 06:21:04,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:21:04,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 712 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:21:04,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:21:05,138 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-01-10 06:21:05,138 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:21:05,138 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:21:05,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1173700125] [2022-01-10 06:21:05,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1173700125] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:21:05,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:21:05,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:21:05,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862844826] [2022-01-10 06:21:05,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:21:05,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:21:05,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:21:05,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:21:05,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:21:05,140 INFO L87 Difference]: Start difference. First operand 417 states and 628 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-01-10 06:21:05,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:21:05,200 INFO L93 Difference]: Finished difference Result 823 states and 1244 transitions. [2022-01-10 06:21:05,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:21:05,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 169 [2022-01-10 06:21:05,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:21:05,203 INFO L225 Difference]: With dead ends: 823 [2022-01-10 06:21:05,203 INFO L226 Difference]: Without dead ends: 419 [2022-01-10 06:21:05,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 165 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 06:21:05,205 INFO L933 BasicCegarLoop]: 614 mSDtfsCounter, 151 mSDsluCounter, 1665 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2279 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 06:21:05,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 2279 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:21:05,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2022-01-10 06:21:05,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 419. [2022-01-10 06:21:05,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 324 states have (on average 1.5432098765432098) internal successors, (500), 330 states have internal predecessors, (500), 64 states have call successors, (64), 28 states have call predecessors, (64), 30 states have return successors, (69), 62 states have call predecessors, (69), 63 states have call successors, (69) [2022-01-10 06:21:05,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 633 transitions. [2022-01-10 06:21:05,218 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 633 transitions. Word has length 169 [2022-01-10 06:21:05,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:21:05,218 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 633 transitions. [2022-01-10 06:21:05,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-01-10 06:21:05,218 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 633 transitions. [2022-01-10 06:21:05,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-10 06:21:05,221 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:21:05,221 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:21:05,233 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 06:21:05,431 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 06:21:05,432 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:21:05,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:21:05,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1946622078, now seen corresponding path program 1 times [2022-01-10 06:21:05,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:21:05,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [123484294] [2022-01-10 06:21:05,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:21:05,433 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:21:05,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:21:05,434 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 06:21:05,436 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 06:21:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:21:05,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 713 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 06:21:05,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:21:05,919 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-01-10 06:21:05,919 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:21:05,919 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:21:05,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [123484294] [2022-01-10 06:21:05,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [123484294] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:21:05,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:21:05,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:21:05,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756098513] [2022-01-10 06:21:05,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:21:05,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:21:05,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:21:05,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:21:05,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:21:05,924 INFO L87 Difference]: Start difference. First operand 419 states and 633 transitions. Second operand has 5 states, 4 states have (on average 24.25) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2022-01-10 06:21:05,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:21:05,970 INFO L93 Difference]: Finished difference Result 815 states and 1234 transitions. [2022-01-10 06:21:05,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:21:05,970 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.25) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 170 [2022-01-10 06:21:05,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:21:05,972 INFO L225 Difference]: With dead ends: 815 [2022-01-10 06:21:05,972 INFO L226 Difference]: Without dead ends: 419 [2022-01-10 06:21:05,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 166 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 06:21:05,974 INFO L933 BasicCegarLoop]: 616 mSDtfsCounter, 150 mSDsluCounter, 1677 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 2293 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 06:21:05,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 2293 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:21:05,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2022-01-10 06:21:05,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 419. [2022-01-10 06:21:05,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 324 states have (on average 1.5432098765432098) internal successors, (500), 330 states have internal predecessors, (500), 64 states have call successors, (64), 28 states have call predecessors, (64), 30 states have return successors, (68), 62 states have call predecessors, (68), 63 states have call successors, (68) [2022-01-10 06:21:05,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 632 transitions. [2022-01-10 06:21:05,985 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 632 transitions. Word has length 170 [2022-01-10 06:21:05,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:21:05,985 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 632 transitions. [2022-01-10 06:21:05,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.25) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2022-01-10 06:21:05,985 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 632 transitions. [2022-01-10 06:21:05,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-01-10 06:21:05,987 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:21:05,987 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:21:05,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-01-10 06:21:06,197 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 06:21:06,197 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:21:06,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:21:06,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1106845455, now seen corresponding path program 1 times [2022-01-10 06:21:06,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:21:06,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1045529947] [2022-01-10 06:21:06,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:21:06,198 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:21:06,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:21:06,199 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 06:21:06,201 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 06:21:06,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:21:06,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 672 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 06:21:06,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:21:06,638 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-01-10 06:21:06,638 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:21:06,638 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:21:06,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1045529947] [2022-01-10 06:21:06,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1045529947] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:21:06,638 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:21:06,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:21:06,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004698609] [2022-01-10 06:21:06,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:21:06,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:21:06,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:21:06,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:21:06,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:21:06,640 INFO L87 Difference]: Start difference. First operand 419 states and 632 transitions. Second operand has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2022-01-10 06:21:06,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:21:06,687 INFO L93 Difference]: Finished difference Result 817 states and 1237 transitions. [2022-01-10 06:21:06,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:21:06,688 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 152 [2022-01-10 06:21:06,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:21:06,689 INFO L225 Difference]: With dead ends: 817 [2022-01-10 06:21:06,690 INFO L226 Difference]: Without dead ends: 421 [2022-01-10 06:21:06,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 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 06:21:06,691 INFO L933 BasicCegarLoop]: 617 mSDtfsCounter, 148 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 2295 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 06:21:06,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 2295 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:21:06,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-01-10 06:21:06,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2022-01-10 06:21:06,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 325 states have (on average 1.5415384615384615) internal successors, (501), 332 states have internal predecessors, (501), 64 states have call successors, (64), 28 states have call predecessors, (64), 31 states have return successors, (70), 62 states have call predecessors, (70), 63 states have call successors, (70) [2022-01-10 06:21:06,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 635 transitions. [2022-01-10 06:21:06,702 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 635 transitions. Word has length 152 [2022-01-10 06:21:06,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:21:06,702 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 635 transitions. [2022-01-10 06:21:06,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2022-01-10 06:21:06,702 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 635 transitions. [2022-01-10 06:21:06,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-01-10 06:21:06,704 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:21:06,704 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:21:06,716 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 06:21:06,914 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 06:21:06,915 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:21:06,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:21:06,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1163623591, now seen corresponding path program 1 times [2022-01-10 06:21:06,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:21:06,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [569388027] [2022-01-10 06:21:06,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:21:06,916 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:21:06,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:21:06,917 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 06:21:06,917 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 06:21:07,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:21:07,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:21:07,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:21:07,381 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-01-10 06:21:07,381 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:21:07,381 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:21:07,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [569388027] [2022-01-10 06:21:07,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [569388027] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:21:07,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:21:07,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:21:07,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859375413] [2022-01-10 06:21:07,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:21:07,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:21:07,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:21:07,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:21:07,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:21:07,383 INFO L87 Difference]: Start difference. First operand 421 states and 635 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-01-10 06:21:07,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:21:07,439 INFO L93 Difference]: Finished difference Result 815 states and 1232 transitions. [2022-01-10 06:21:07,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:21:07,440 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 172 [2022-01-10 06:21:07,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:21:07,442 INFO L225 Difference]: With dead ends: 815 [2022-01-10 06:21:07,442 INFO L226 Difference]: Without dead ends: 421 [2022-01-10 06:21:07,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 06:21:07,444 INFO L933 BasicCegarLoop]: 614 mSDtfsCounter, 149 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 2282 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 06:21:07,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 2282 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:21:07,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-01-10 06:21:07,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2022-01-10 06:21:07,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 325 states have (on average 1.5415384615384615) internal successors, (501), 332 states have internal predecessors, (501), 64 states have call successors, (64), 28 states have call predecessors, (64), 31 states have return successors, (69), 62 states have call predecessors, (69), 63 states have call successors, (69) [2022-01-10 06:21:07,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 634 transitions. [2022-01-10 06:21:07,461 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 634 transitions. Word has length 172 [2022-01-10 06:21:07,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:21:07,463 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 634 transitions. [2022-01-10 06:21:07,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-01-10 06:21:07,464 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 634 transitions. [2022-01-10 06:21:07,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-01-10 06:21:07,466 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:21:07,466 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:21:07,479 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-01-10 06:21:07,676 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 06:21:07,676 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:21:07,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:21:07,677 INFO L85 PathProgramCache]: Analyzing trace with hash 13600294, now seen corresponding path program 2 times [2022-01-10 06:21:07,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:21:07,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684242979] [2022-01-10 06:21:07,677 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-10 06:21:07,678 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:21:07,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:21:07,678 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 06:21:07,679 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 06:21:07,850 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-10 06:21:07,851 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 06:21:07,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:21:07,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:21:08,069 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-01-10 06:21:08,070 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:21:08,070 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:21:08,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684242979] [2022-01-10 06:21:08,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684242979] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:21:08,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:21:08,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:21:08,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284877930] [2022-01-10 06:21:08,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:21:08,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:21:08,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:21:08,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:21:08,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:21:08,071 INFO L87 Difference]: Start difference. First operand 421 states and 634 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, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-01-10 06:21:08,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:21:08,104 INFO L93 Difference]: Finished difference Result 647 states and 951 transitions. [2022-01-10 06:21:08,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:21:08,104 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, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 173 [2022-01-10 06:21:08,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:21:08,108 INFO L225 Difference]: With dead ends: 647 [2022-01-10 06:21:08,108 INFO L226 Difference]: Without dead ends: 424 [2022-01-10 06:21:08,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 171 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 06:21:08,110 INFO L933 BasicCegarLoop]: 623 mSDtfsCounter, 1 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1244 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 06:21:08,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1244 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:21:08,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-01-10 06:21:08,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 423. [2022-01-10 06:21:08,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 327 states have (on average 1.5382262996941896) internal successors, (503), 334 states have internal predecessors, (503), 64 states have call successors, (64), 28 states have call predecessors, (64), 31 states have return successors, (69), 62 states have call predecessors, (69), 63 states have call successors, (69) [2022-01-10 06:21:08,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 636 transitions. [2022-01-10 06:21:08,127 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 636 transitions. Word has length 173 [2022-01-10 06:21:08,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:21:08,127 INFO L470 AbstractCegarLoop]: Abstraction has 423 states and 636 transitions. [2022-01-10 06:21:08,127 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, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-01-10 06:21:08,127 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 636 transitions. [2022-01-10 06:21:08,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-10 06:21:08,129 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:21:08,129 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 06:21:08,140 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-01-10 06:21:08,339 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 06:21:08,340 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:21:08,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:21:08,340 INFO L85 PathProgramCache]: Analyzing trace with hash 2037298155, now seen corresponding path program 1 times [2022-01-10 06:21:08,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:21:08,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1502489094] [2022-01-10 06:21:08,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:21:08,341 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:21:08,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:21:08,342 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 06:21:08,343 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 06:21:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:21:08,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:21:08,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:21:08,785 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-01-10 06:21:08,786 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:21:08,786 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:21:08,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1502489094] [2022-01-10 06:21:08,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1502489094] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:21:08,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:21:08,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:21:08,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724782037] [2022-01-10 06:21:08,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:21:08,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:21:08,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:21:08,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:21:08,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:21:08,788 INFO L87 Difference]: Start difference. First operand 423 states and 636 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-01-10 06:21:08,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:21:08,854 INFO L93 Difference]: Finished difference Result 821 states and 1241 transitions. [2022-01-10 06:21:08,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:21:08,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 182 [2022-01-10 06:21:08,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:21:08,857 INFO L225 Difference]: With dead ends: 821 [2022-01-10 06:21:08,857 INFO L226 Difference]: Without dead ends: 425 [2022-01-10 06:21:08,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 178 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 06:21:08,858 INFO L933 BasicCegarLoop]: 615 mSDtfsCounter, 147 mSDsluCounter, 1669 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 2284 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 06:21:08,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 2284 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:21:08,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2022-01-10 06:21:08,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 425. [2022-01-10 06:21:08,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 328 states have (on average 1.5365853658536586) internal successors, (504), 336 states have internal predecessors, (504), 64 states have call successors, (64), 28 states have call predecessors, (64), 32 states have return successors, (73), 62 states have call predecessors, (73), 63 states have call successors, (73) [2022-01-10 06:21:08,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 641 transitions. [2022-01-10 06:21:08,868 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 641 transitions. Word has length 182 [2022-01-10 06:21:08,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:21:08,868 INFO L470 AbstractCegarLoop]: Abstraction has 425 states and 641 transitions. [2022-01-10 06:21:08,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-01-10 06:21:08,868 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 641 transitions. [2022-01-10 06:21:08,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-01-10 06:21:08,870 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:21:08,870 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:21:08,885 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 06:21:09,082 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 06:21:09,082 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:21:09,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:21:09,083 INFO L85 PathProgramCache]: Analyzing trace with hash -156861210, now seen corresponding path program 1 times [2022-01-10 06:21:09,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:21:09,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [591709259] [2022-01-10 06:21:09,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:21:09,083 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:21:09,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:21:09,084 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 06:21:09,085 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 06:21:09,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:21:09,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:21:09,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:21:09,493 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-01-10 06:21:09,493 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:21:09,494 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:21:09,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [591709259] [2022-01-10 06:21:09,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [591709259] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:21:09,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:21:09,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:21:09,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645542342] [2022-01-10 06:21:09,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:21:09,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:21:09,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:21:09,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:21:09,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:21:09,495 INFO L87 Difference]: Start difference. First operand 425 states and 641 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-01-10 06:21:09,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:21:09,527 INFO L93 Difference]: Finished difference Result 894 states and 1368 transitions. [2022-01-10 06:21:09,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:21:09,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 164 [2022-01-10 06:21:09,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:21:09,529 INFO L225 Difference]: With dead ends: 894 [2022-01-10 06:21:09,529 INFO L226 Difference]: Without dead ends: 500 [2022-01-10 06:21:09,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 162 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 06:21:09,537 INFO L933 BasicCegarLoop]: 643 mSDtfsCounter, 134 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1221 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 06:21:09,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 1221 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:21:09,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2022-01-10 06:21:09,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 492. [2022-01-10 06:21:09,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 381 states have (on average 1.5564304461942258) internal successors, (593), 389 states have internal predecessors, (593), 78 states have call successors, (78), 28 states have call predecessors, (78), 32 states have return successors, (89), 76 states have call predecessors, (89), 77 states have call successors, (89) [2022-01-10 06:21:09,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 760 transitions. [2022-01-10 06:21:09,550 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 760 transitions. Word has length 164 [2022-01-10 06:21:09,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:21:09,550 INFO L470 AbstractCegarLoop]: Abstraction has 492 states and 760 transitions. [2022-01-10 06:21:09,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-01-10 06:21:09,550 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 760 transitions. [2022-01-10 06:21:09,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 06:21:09,552 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:21:09,552 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:21:09,564 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 06:21:09,762 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 06:21:09,762 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:21:09,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:21:09,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1575574878, now seen corresponding path program 1 times [2022-01-10 06:21:09,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:21:09,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [589259420] [2022-01-10 06:21:09,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:21:09,763 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:21:09,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:21:09,764 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 06:21:09,765 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 06:21:09,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:21:09,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 06:21:09,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:21:10,174 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-01-10 06:21:10,174 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:21:10,176 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:21:10,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [589259420] [2022-01-10 06:21:10,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [589259420] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:21:10,176 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:21:10,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 06:21:10,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249656500] [2022-01-10 06:21:10,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:21:10,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 06:21:10,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:21:10,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 06:21:10,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 06:21:10,178 INFO L87 Difference]: Start difference. First operand 492 states and 760 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-01-10 06:21:10,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:21:10,280 INFO L93 Difference]: Finished difference Result 1130 states and 1774 transitions. [2022-01-10 06:21:10,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 06:21:10,281 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 165 [2022-01-10 06:21:10,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:21:10,284 INFO L225 Difference]: With dead ends: 1130 [2022-01-10 06:21:10,284 INFO L226 Difference]: Without dead ends: 667 [2022-01-10 06:21:10,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 162 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 06:21:10,285 INFO L933 BasicCegarLoop]: 769 mSDtfsCounter, 739 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 1442 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 06:21:10,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [739 Valid, 1442 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 06:21:10,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2022-01-10 06:21:10,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 500. [2022-01-10 06:21:10,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 388 states have (on average 1.5438144329896908) internal successors, (599), 395 states have internal predecessors, (599), 78 states have call successors, (78), 30 states have call predecessors, (78), 33 states have return successors, (85), 76 states have call predecessors, (85), 77 states have call successors, (85) [2022-01-10 06:21:10,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 762 transitions. [2022-01-10 06:21:10,302 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 762 transitions. Word has length 165 [2022-01-10 06:21:10,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:21:10,302 INFO L470 AbstractCegarLoop]: Abstraction has 500 states and 762 transitions. [2022-01-10 06:21:10,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-01-10 06:21:10,302 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 762 transitions. [2022-01-10 06:21:10,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-01-10 06:21:10,304 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:21:10,304 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:21:10,316 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 06:21:10,514 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 06:21:10,514 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:21:10,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:21:10,514 INFO L85 PathProgramCache]: Analyzing trace with hash -791674741, now seen corresponding path program 1 times [2022-01-10 06:21:10,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:21:10,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064370085] [2022-01-10 06:21:10,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:21:10,515 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:21:10,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:21:10,516 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 06:21:10,517 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 06:21:10,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:21:10,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:21:10,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:21:10,892 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-01-10 06:21:10,892 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:21:10,892 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:21:10,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064370085] [2022-01-10 06:21:10,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2064370085] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:21:10,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:21:10,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:21:10,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757109613] [2022-01-10 06:21:10,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:21:10,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:21:10,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:21:10,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:21:10,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:21:10,894 INFO L87 Difference]: Start difference. First operand 500 states and 762 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-01-10 06:21:10,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:21:10,917 INFO L93 Difference]: Finished difference Result 1116 states and 1748 transitions. [2022-01-10 06:21:10,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:21:10,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 166 [2022-01-10 06:21:10,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:21:10,920 INFO L225 Difference]: With dead ends: 1116 [2022-01-10 06:21:10,920 INFO L226 Difference]: Without dead ends: 657 [2022-01-10 06:21:10,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 164 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 06:21:10,922 INFO L933 BasicCegarLoop]: 653 mSDtfsCounter, 128 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1270 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 06:21:10,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 1270 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:21:10,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2022-01-10 06:21:10,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 649. [2022-01-10 06:21:10,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 506 states have (on average 1.5790513833992095) internal successors, (799), 513 states have internal predecessors, (799), 109 states have call successors, (109), 30 states have call predecessors, (109), 33 states have return successors, (120), 107 states have call predecessors, (120), 108 states have call successors, (120) [2022-01-10 06:21:10,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 1028 transitions. [2022-01-10 06:21:10,941 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 1028 transitions. Word has length 166 [2022-01-10 06:21:10,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:21:10,941 INFO L470 AbstractCegarLoop]: Abstraction has 649 states and 1028 transitions. [2022-01-10 06:21:10,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-01-10 06:21:10,941 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 1028 transitions. [2022-01-10 06:21:10,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-01-10 06:21:10,943 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:21:10,944 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:21:10,953 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-01-10 06:21:11,153 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 06:21:11,153 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:21:11,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:21:11,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1172860751, now seen corresponding path program 1 times [2022-01-10 06:21:11,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:21:11,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [564264277] [2022-01-10 06:21:11,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:21:11,154 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:21:11,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:21:11,155 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 06:21:11,156 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 06:21:11,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:21:11,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 06:21:11,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:21:11,589 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-01-10 06:21:11,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:21:11,835 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-01-10 06:21:11,836 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:21:11,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [564264277] [2022-01-10 06:21:11,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [564264277] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:21:11,836 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:21:11,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-01-10 06:21:11,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768068640] [2022-01-10 06:21:11,836 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:21:11,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 06:21:11,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:21:11,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 06:21:11,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:21:11,838 INFO L87 Difference]: Start difference. First operand 649 states and 1028 transitions. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-01-10 06:21:12,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:21:12,082 INFO L93 Difference]: Finished difference Result 1550 states and 2522 transitions. [2022-01-10 06:21:12,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 06:21:12,083 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 166 [2022-01-10 06:21:12,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:21:12,088 INFO L225 Difference]: With dead ends: 1550 [2022-01-10 06:21:12,089 INFO L226 Difference]: Without dead ends: 1327 [2022-01-10 06:21:12,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 326 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 06:21:12,091 INFO L933 BasicCegarLoop]: 699 mSDtfsCounter, 697 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 2224 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 06:21:12,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [733 Valid, 2224 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 06:21:12,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1327 states. [2022-01-10 06:21:12,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1327 to 1303. [2022-01-10 06:21:12,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 1033 states have (on average 1.6185866408518876) internal successors, (1672), 1040 states have internal predecessors, (1672), 236 states have call successors, (236), 30 states have call predecessors, (236), 33 states have return successors, (263), 234 states have call predecessors, (263), 235 states have call successors, (263) [2022-01-10 06:21:12,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 2171 transitions. [2022-01-10 06:21:12,142 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 2171 transitions. Word has length 166 [2022-01-10 06:21:12,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:21:12,143 INFO L470 AbstractCegarLoop]: Abstraction has 1303 states and 2171 transitions. [2022-01-10 06:21:12,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-01-10 06:21:12,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 2171 transitions. [2022-01-10 06:21:12,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-01-10 06:21:12,148 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:21:12,148 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:21:12,158 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 06:21:12,358 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 06:21:12,358 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:21:12,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:21:12,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1148016986, now seen corresponding path program 1 times [2022-01-10 06:21:12,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:21:12,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1607378219] [2022-01-10 06:21:12,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:21:12,359 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:21:12,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:21:12,361 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 06:21:12,361 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 06:21:12,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:21:12,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 691 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:21:12,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:21:12,770 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-01-10 06:21:12,770 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:21:12,770 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:21:12,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1607378219] [2022-01-10 06:21:12,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1607378219] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:21:12,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:21:12,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:21:12,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188928045] [2022-01-10 06:21:12,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:21:12,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:21:12,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:21:12,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:21:12,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:21:12,772 INFO L87 Difference]: Start difference. First operand 1303 states and 2171 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-01-10 06:21:12,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:21:12,834 INFO L93 Difference]: Finished difference Result 3107 states and 5223 transitions. [2022-01-10 06:21:12,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:21:12,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 169 [2022-01-10 06:21:12,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:21:12,848 INFO L225 Difference]: With dead ends: 3107 [2022-01-10 06:21:12,849 INFO L226 Difference]: Without dead ends: 1943 [2022-01-10 06:21:12,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 167 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 06:21:12,853 INFO L933 BasicCegarLoop]: 637 mSDtfsCounter, 126 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1251 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 06:21:12,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 1251 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:21:12,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1943 states. [2022-01-10 06:21:12,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1943 to 1935. [2022-01-10 06:21:12,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1935 states, 1546 states have (on average 1.6267787839586028) internal successors, (2515), 1553 states have internal predecessors, (2515), 355 states have call successors, (355), 30 states have call predecessors, (355), 33 states have return successors, (382), 353 states have call predecessors, (382), 354 states have call successors, (382) [2022-01-10 06:21:12,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1935 states to 1935 states and 3252 transitions. [2022-01-10 06:21:12,948 INFO L78 Accepts]: Start accepts. Automaton has 1935 states and 3252 transitions. Word has length 169 [2022-01-10 06:21:12,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:21:12,949 INFO L470 AbstractCegarLoop]: Abstraction has 1935 states and 3252 transitions. [2022-01-10 06:21:12,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-01-10 06:21:12,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1935 states and 3252 transitions. [2022-01-10 06:21:12,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 06:21:12,963 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:21:12,963 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:21:12,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-01-10 06:21:13,178 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 06:21:13,179 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:21:13,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:21:13,179 INFO L85 PathProgramCache]: Analyzing trace with hash 411873508, now seen corresponding path program 1 times [2022-01-10 06:21:13,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:21:13,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1816051907] [2022-01-10 06:21:13,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:21:13,180 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:21:13,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:21:13,189 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 06:21:13,190 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 06:21:13,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:21:13,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:21:13,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:21:13,604 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-01-10 06:21:13,604 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:21:13,604 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:21:13,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1816051907] [2022-01-10 06:21:13,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1816051907] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:21:13,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:21:13,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:21:13,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707497810] [2022-01-10 06:21:13,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:21:13,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:21:13,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:21:13,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:21:13,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:21:13,606 INFO L87 Difference]: Start difference. First operand 1935 states and 3252 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-01-10 06:21:13,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:21:13,691 INFO L93 Difference]: Finished difference Result 4576 states and 7767 transitions. [2022-01-10 06:21:13,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:21:13,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 189 [2022-01-10 06:21:13,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:21:13,704 INFO L225 Difference]: With dead ends: 4576 [2022-01-10 06:21:13,704 INFO L226 Difference]: Without dead ends: 2913 [2022-01-10 06:21:13,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 187 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 06:21:13,710 INFO L933 BasicCegarLoop]: 635 mSDtfsCounter, 124 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1246 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 06:21:13,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 1246 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:21:13,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2913 states. [2022-01-10 06:21:13,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2913 to 2905. [2022-01-10 06:21:13,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2905 states, 2354 states have (on average 1.63338997451147) internal successors, (3845), 2361 states have internal predecessors, (3845), 517 states have call successors, (517), 30 states have call predecessors, (517), 33 states have return successors, (560), 515 states have call predecessors, (560), 516 states have call successors, (560) [2022-01-10 06:21:13,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2905 states to 2905 states and 4922 transitions. [2022-01-10 06:21:13,889 INFO L78 Accepts]: Start accepts. Automaton has 2905 states and 4922 transitions. Word has length 189 [2022-01-10 06:21:13,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:21:13,889 INFO L470 AbstractCegarLoop]: Abstraction has 2905 states and 4922 transitions. [2022-01-10 06:21:13,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-01-10 06:21:13,889 INFO L276 IsEmpty]: Start isEmpty. Operand 2905 states and 4922 transitions. [2022-01-10 06:21:13,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-01-10 06:21:13,901 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:21:13,902 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:21:13,913 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 06:21:14,113 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 06:21:14,113 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:21:14,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:21:14,113 INFO L85 PathProgramCache]: Analyzing trace with hash 68010373, now seen corresponding path program 1 times [2022-01-10 06:21:14,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:21:14,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485453592] [2022-01-10 06:21:14,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:21:14,114 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:21:14,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:21:14,115 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 06:21:14,116 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 06:21:14,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:21:14,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:21:14,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:21:14,513 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-01-10 06:21:14,518 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:21:14,518 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:21:14,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485453592] [2022-01-10 06:21:14,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1485453592] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:21:14,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:21:14,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:21:14,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643379765] [2022-01-10 06:21:14,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:21:14,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:21:14,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:21:14,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:21:14,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:21:14,520 INFO L87 Difference]: Start difference. First operand 2905 states and 4922 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-01-10 06:21:14,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:21:14,681 INFO L93 Difference]: Finished difference Result 6897 states and 11791 transitions. [2022-01-10 06:21:14,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:21:14,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 171 [2022-01-10 06:21:14,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:21:14,699 INFO L225 Difference]: With dead ends: 6897 [2022-01-10 06:21:14,700 INFO L226 Difference]: Without dead ends: 4480 [2022-01-10 06:21:14,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 169 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 06:21:14,711 INFO L933 BasicCegarLoop]: 635 mSDtfsCounter, 122 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1246 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 06:21:14,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 1246 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:21:14,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4480 states. [2022-01-10 06:21:14,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4480 to 4472. [2022-01-10 06:21:14,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4472 states, 3676 states have (on average 1.6381936887921653) internal successors, (6022), 3683 states have internal predecessors, (6022), 762 states have call successors, (762), 30 states have call predecessors, (762), 33 states have return successors, (831), 760 states have call predecessors, (831), 761 states have call successors, (831) [2022-01-10 06:21:14,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4472 states to 4472 states and 7615 transitions. [2022-01-10 06:21:14,925 INFO L78 Accepts]: Start accepts. Automaton has 4472 states and 7615 transitions. Word has length 171 [2022-01-10 06:21:14,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:21:14,925 INFO L470 AbstractCegarLoop]: Abstraction has 4472 states and 7615 transitions. [2022-01-10 06:21:14,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-01-10 06:21:14,926 INFO L276 IsEmpty]: Start isEmpty. Operand 4472 states and 7615 transitions. [2022-01-10 06:21:14,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-01-10 06:21:14,945 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:21:14,945 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:21:14,973 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 06:21:15,156 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 06:21:15,157 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:21:15,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:21:15,157 INFO L85 PathProgramCache]: Analyzing trace with hash 105673536, now seen corresponding path program 1 times [2022-01-10 06:21:15,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:21:15,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130907629] [2022-01-10 06:21:15,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:21:15,158 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:21:15,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:21:15,159 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 06:21:15,197 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 06:21:15,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:21:15,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 739 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:21:15,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:21:15,589 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-01-10 06:21:15,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:21:15,589 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:21:15,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [130907629] [2022-01-10 06:21:15,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [130907629] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:21:15,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:21:15,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:21:15,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827972003] [2022-01-10 06:21:15,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:21:15,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:21:15,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:21:15,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:21:15,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:21:15,591 INFO L87 Difference]: Start difference. First operand 4472 states and 7615 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-01-10 06:21:15,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:21:15,837 INFO L93 Difference]: Finished difference Result 11037 states and 18927 transitions. [2022-01-10 06:21:15,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:21:15,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 191 [2022-01-10 06:21:15,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:21:15,893 INFO L225 Difference]: With dead ends: 11037 [2022-01-10 06:21:15,893 INFO L226 Difference]: Without dead ends: 7301 [2022-01-10 06:21:15,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 189 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 06:21:15,908 INFO L933 BasicCegarLoop]: 646 mSDtfsCounter, 120 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1264 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 06:21:15,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 1264 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:21:15,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7301 states. [2022-01-10 06:21:16,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7301 to 7293. [2022-01-10 06:21:16,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7293 states, 6004 states have (on average 1.6347435043304464) internal successors, (9815), 6011 states have internal predecessors, (9815), 1255 states have call successors, (1255), 30 states have call predecessors, (1255), 33 states have return successors, (1368), 1253 states have call predecessors, (1368), 1254 states have call successors, (1368) [2022-01-10 06:21:16,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7293 states to 7293 states and 12438 transitions. [2022-01-10 06:21:16,286 INFO L78 Accepts]: Start accepts. Automaton has 7293 states and 12438 transitions. Word has length 191 [2022-01-10 06:21:16,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:21:16,286 INFO L470 AbstractCegarLoop]: Abstraction has 7293 states and 12438 transitions. [2022-01-10 06:21:16,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-01-10 06:21:16,287 INFO L276 IsEmpty]: Start isEmpty. Operand 7293 states and 12438 transitions. [2022-01-10 06:21:16,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-01-10 06:21:16,317 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:21:16,318 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:21:16,328 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 06:21:16,529 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 06:21:16,529 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:21:16,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:21:16,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1063379230, now seen corresponding path program 1 times [2022-01-10 06:21:16,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:21:16,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [713429786] [2022-01-10 06:21:16,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:21:16,530 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:21:16,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:21:16,531 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 06:21:16,534 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 06:21:16,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:21:16,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:21:16,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:21:16,972 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-01-10 06:21:16,973 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:21:16,973 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:21:16,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [713429786] [2022-01-10 06:21:16,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [713429786] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:21:16,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:21:16,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:21:16,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258072381] [2022-01-10 06:21:16,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:21:16,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:21:16,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:21:16,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:21:16,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:21:16,974 INFO L87 Difference]: Start difference. First operand 7293 states and 12438 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-01-10 06:21:17,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:21:17,397 INFO L93 Difference]: Finished difference Result 18401 states and 31612 transitions. [2022-01-10 06:21:17,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:21:17,397 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 192 [2022-01-10 06:21:17,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:21:17,436 INFO L225 Difference]: With dead ends: 18401 [2022-01-10 06:21:17,437 INFO L226 Difference]: Without dead ends: 12241 [2022-01-10 06:21:17,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 190 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 06:21:17,456 INFO L933 BasicCegarLoop]: 638 mSDtfsCounter, 118 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1252 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 06:21:17,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 1252 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:21:17,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12241 states. [2022-01-10 06:21:17,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12241 to 12233. [2022-01-10 06:21:17,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12233 states, 10122 states have (on average 1.6349535664888362) internal successors, (16549), 10129 states have internal predecessors, (16549), 2077 states have call successors, (2077), 30 states have call predecessors, (2077), 33 states have return successors, (2268), 2075 states have call predecessors, (2268), 2076 states have call successors, (2268) [2022-01-10 06:21:18,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12233 states to 12233 states and 20894 transitions. [2022-01-10 06:21:18,023 INFO L78 Accepts]: Start accepts. Automaton has 12233 states and 20894 transitions. Word has length 192 [2022-01-10 06:21:18,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:21:18,023 INFO L470 AbstractCegarLoop]: Abstraction has 12233 states and 20894 transitions. [2022-01-10 06:21:18,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-01-10 06:21:18,024 INFO L276 IsEmpty]: Start isEmpty. Operand 12233 states and 20894 transitions. [2022-01-10 06:21:18,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-01-10 06:21:18,060 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:21:18,061 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:21:18,080 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-01-10 06:21:18,279 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 06:21:18,280 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:21:18,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:21:18,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1374081121, now seen corresponding path program 1 times [2022-01-10 06:21:18,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:21:18,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2091804677] [2022-01-10 06:21:18,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:21:18,281 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:21:18,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:21:18,282 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 06:21:18,283 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 06:21:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:21:18,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:21:18,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:21:18,747 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-01-10 06:21:18,748 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:21:18,748 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:21:18,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2091804677] [2022-01-10 06:21:18,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2091804677] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:21:18,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:21:18,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:21:18,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596858811] [2022-01-10 06:21:18,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:21:18,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:21:18,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:21:18,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:21:18,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:21:18,751 INFO L87 Difference]: Start difference. First operand 12233 states and 20894 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-01-10 06:21:19,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:21:19,399 INFO L93 Difference]: Finished difference Result 29254 states and 49876 transitions. [2022-01-10 06:21:19,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:21:19,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 174 [2022-01-10 06:21:19,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:21:19,466 INFO L225 Difference]: With dead ends: 29254 [2022-01-10 06:21:19,466 INFO L226 Difference]: Without dead ends: 19122 [2022-01-10 06:21:19,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 172 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 06:21:19,500 INFO L933 BasicCegarLoop]: 641 mSDtfsCounter, 116 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1228 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 06:21:19,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 1228 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:21:19,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19122 states. [2022-01-10 06:21:20,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19122 to 19114. [2022-01-10 06:21:20,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19114 states, 15800 states have (on average 1.6077848101265824) internal successors, (25403), 15807 states have internal predecessors, (25403), 3280 states have call successors, (3280), 30 states have call predecessors, (3280), 33 states have return successors, (3615), 3278 states have call predecessors, (3615), 3279 states have call successors, (3615) [2022-01-10 06:21:20,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19114 states to 19114 states and 32298 transitions. [2022-01-10 06:21:20,404 INFO L78 Accepts]: Start accepts. Automaton has 19114 states and 32298 transitions. Word has length 174 [2022-01-10 06:21:20,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:21:20,404 INFO L470 AbstractCegarLoop]: Abstraction has 19114 states and 32298 transitions. [2022-01-10 06:21:20,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-01-10 06:21:20,404 INFO L276 IsEmpty]: Start isEmpty. Operand 19114 states and 32298 transitions. [2022-01-10 06:21:20,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-01-10 06:21:20,449 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:21:20,449 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:21:20,481 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 06:21:20,681 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 06:21:20,682 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:21:20,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:21:20,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1571549885, now seen corresponding path program 1 times [2022-01-10 06:21:20,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:21:20,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1413495501] [2022-01-10 06:21:20,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:21:20,683 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:21:20,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:21:20,684 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 06:21:20,724 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 06:21:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:21:20,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:21:20,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:21:21,148 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-01-10 06:21:21,149 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:21:21,149 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:21:21,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1413495501] [2022-01-10 06:21:21,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1413495501] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:21:21,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:21:21,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:21:21,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706341922] [2022-01-10 06:21:21,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:21:21,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:21:21,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:21:21,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:21:21,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:21:21,151 INFO L87 Difference]: Start difference. First operand 19114 states and 32298 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-01-10 06:21:22,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:21:22,450 INFO L93 Difference]: Finished difference Result 50484 states and 85648 transitions. [2022-01-10 06:21:22,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:21:22,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 194 [2022-01-10 06:21:22,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:21:22,574 INFO L225 Difference]: With dead ends: 50484 [2022-01-10 06:21:22,574 INFO L226 Difference]: Without dead ends: 34106 [2022-01-10 06:21:22,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 192 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 06:21:22,616 INFO L933 BasicCegarLoop]: 637 mSDtfsCounter, 114 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1251 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 06:21:22,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 1251 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:21:22,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34106 states. [2022-01-10 06:21:23,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34106 to 34098. [2022-01-10 06:21:23,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34098 states, 28334 states have (on average 1.604362250299993) internal successors, (45458), 28341 states have internal predecessors, (45458), 5730 states have call successors, (5730), 30 states have call predecessors, (5730), 33 states have return successors, (6339), 5728 states have call predecessors, (6339), 5729 states have call successors, (6339) [2022-01-10 06:21:24,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34098 states to 34098 states and 57527 transitions. [2022-01-10 06:21:24,045 INFO L78 Accepts]: Start accepts. Automaton has 34098 states and 57527 transitions. Word has length 194 [2022-01-10 06:21:24,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:21:24,046 INFO L470 AbstractCegarLoop]: Abstraction has 34098 states and 57527 transitions. [2022-01-10 06:21:24,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-01-10 06:21:24,046 INFO L276 IsEmpty]: Start isEmpty. Operand 34098 states and 57527 transitions. [2022-01-10 06:21:24,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 06:21:24,337 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:21:24,337 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:21:24,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-01-10 06:21:24,549 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 06:21:24,549 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:21:24,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:21:24,550 INFO L85 PathProgramCache]: Analyzing trace with hash 379790823, now seen corresponding path program 1 times [2022-01-10 06:21:24,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:21:24,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1589822163] [2022-01-10 06:21:24,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:21:24,550 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:21:24,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:21:24,551 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 06:21:24,553 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 06:21:24,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:21:24,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 705 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:21:24,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:21:25,160 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-01-10 06:21:25,160 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:21:25,160 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:21:25,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1589822163] [2022-01-10 06:21:25,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1589822163] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:21:25,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:21:25,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:21:25,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255079490] [2022-01-10 06:21:25,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:21:25,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:21:25,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:21:25,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:21:25,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:21:25,161 INFO L87 Difference]: Start difference. First operand 34098 states and 57527 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-01-10 06:21:27,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:21:27,321 INFO L93 Difference]: Finished difference Result 92961 states and 157330 transitions. [2022-01-10 06:21:27,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:21:27,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 176 [2022-01-10 06:21:27,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:21:27,572 INFO L225 Difference]: With dead ends: 92961 [2022-01-10 06:21:27,572 INFO L226 Difference]: Without dead ends: 62507 [2022-01-10 06:21:27,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 174 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 06:21:27,823 INFO L933 BasicCegarLoop]: 644 mSDtfsCounter, 112 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1259 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 06:21:27,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 1259 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:21:27,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62507 states. [2022-01-10 06:21:30,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62507 to 62499. [2022-01-10 06:21:30,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62499 states, 52222 states have (on average 1.599804680019915) internal successors, (83545), 52229 states have internal predecessors, (83545), 10243 states have call successors, (10243), 30 states have call predecessors, (10243), 33 states have return successors, (11384), 10241 states have call predecessors, (11384), 10242 states have call successors, (11384) [2022-01-10 06:21:30,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62499 states to 62499 states and 105172 transitions. [2022-01-10 06:21:30,935 INFO L78 Accepts]: Start accepts. Automaton has 62499 states and 105172 transitions. Word has length 176 [2022-01-10 06:21:30,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:21:30,935 INFO L470 AbstractCegarLoop]: Abstraction has 62499 states and 105172 transitions. [2022-01-10 06:21:30,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-01-10 06:21:30,936 INFO L276 IsEmpty]: Start isEmpty. Operand 62499 states and 105172 transitions. [2022-01-10 06:21:31,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-01-10 06:21:31,040 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:21:31,040 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:21:31,052 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 06:21:31,241 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 06:21:31,242 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:21:31,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:21:31,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1079621600, now seen corresponding path program 1 times [2022-01-10 06:21:31,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:21:31,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [856709353] [2022-01-10 06:21:31,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:21:31,243 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:21:31,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:21:31,244 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 06:21:31,245 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 06:21:31,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:21:31,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:21:31,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:21:31,640 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-01-10 06:21:31,640 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:21:31,640 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:21:31,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [856709353] [2022-01-10 06:21:31,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [856709353] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:21:31,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:21:31,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:21:31,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533193245] [2022-01-10 06:21:31,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:21:31,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:21:31,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:21:31,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:21:31,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:21:31,641 INFO L87 Difference]: Start difference. First operand 62499 states and 105172 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-01-10 06:21:35,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:21:35,259 INFO L93 Difference]: Finished difference Result 117080 states and 197367 transitions. [2022-01-10 06:21:35,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:21:35,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 177 [2022-01-10 06:21:35,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:21:35,674 INFO L225 Difference]: With dead ends: 117080 [2022-01-10 06:21:35,675 INFO L226 Difference]: Without dead ends: 116857 [2022-01-10 06:21:35,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 175 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 06:21:35,723 INFO L933 BasicCegarLoop]: 637 mSDtfsCounter, 110 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1251 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 06:21:35,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 1251 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:21:35,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116857 states. [2022-01-10 06:21:40,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116857 to 116849. [2022-01-10 06:21:41,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116849 states, 98204 states have (on average 1.5940694880045618) internal successors, (156544), 98211 states have internal predecessors, (156544), 18611 states have call successors, (18611), 30 states have call predecessors, (18611), 33 states have return successors, (20798), 18609 states have call predecessors, (20798), 18610 states have call successors, (20798) [2022-01-10 06:21:41,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116849 states to 116849 states and 195953 transitions. [2022-01-10 06:21:41,425 INFO L78 Accepts]: Start accepts. Automaton has 116849 states and 195953 transitions. Word has length 177 [2022-01-10 06:21:41,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:21:41,426 INFO L470 AbstractCegarLoop]: Abstraction has 116849 states and 195953 transitions. [2022-01-10 06:21:41,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-01-10 06:21:41,426 INFO L276 IsEmpty]: Start isEmpty. Operand 116849 states and 195953 transitions. [2022-01-10 06:21:41,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-10 06:21:41,544 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:21:41,544 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:21:41,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Ended with exit code 0 [2022-01-10 06:21:41,745 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 06:21:41,745 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:21:41,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:21:41,746 INFO L85 PathProgramCache]: Analyzing trace with hash 58691515, now seen corresponding path program 1 times [2022-01-10 06:21:41,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:21:41,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [399970737] [2022-01-10 06:21:41,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:21:41,747 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:21:41,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:21:41,748 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 06:21:41,748 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 06:21:42,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:21:42,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 751 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-10 06:21:42,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:21:42,528 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-01-10 06:21:42,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:21:43,002 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-01-10 06:21:43,003 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:21:43,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [399970737] [2022-01-10 06:21:43,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [399970737] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:21:43,003 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:21:43,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-01-10 06:21:43,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094972430] [2022-01-10 06:21:43,003 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:21:43,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-10 06:21:43,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:21:43,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-10 06:21:43,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-01-10 06:21:43,004 INFO L87 Difference]: Start difference. First operand 116849 states and 195953 transitions. Second operand has 16 states, 16 states have (on average 13.375) internal successors, (214), 14 states have internal predecessors, (214), 4 states have call successors, (45), 6 states have call predecessors, (45), 9 states have return successors, (41), 6 states have call predecessors, (41), 4 states have call successors, (41) [2022-01-10 06:21:58,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:21:58,892 INFO L93 Difference]: Finished difference Result 344171 states and 583921 transitions. [2022-01-10 06:21:58,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-10 06:21:58,893 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 13.375) internal successors, (214), 14 states have internal predecessors, (214), 4 states have call successors, (45), 6 states have call predecessors, (45), 9 states have return successors, (41), 6 states have call predecessors, (41), 4 states have call successors, (41) Word has length 197 [2022-01-10 06:21:58,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:00,849 INFO L225 Difference]: With dead ends: 344171 [2022-01-10 06:22:00,850 INFO L226 Difference]: Without dead ends: 343956 [2022-01-10 06:22:01,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 379 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 06:22:01,032 INFO L933 BasicCegarLoop]: 776 mSDtfsCounter, 2242 mSDsluCounter, 3202 mSDsCounter, 0 mSdLazyCounter, 6011 mSolverCounterSat, 650 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2315 SdHoareTripleChecker+Valid, 3978 SdHoareTripleChecker+Invalid, 6661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 650 IncrementalHoareTripleChecker+Valid, 6011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:01,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2315 Valid, 3978 Invalid, 6661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [650 Valid, 6011 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-01-10 06:22:01,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343956 states.