/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_spec0_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 06:19:48,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 06:19:48,737 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 06:19:48,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 06:19:48,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 06:19:48,807 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 06:19:48,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 06:19:48,814 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 06:19:48,815 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 06:19:48,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 06:19:48,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 06:19:48,820 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 06:19:48,820 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 06:19:48,821 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 06:19:48,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 06:19:48,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 06:19:48,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 06:19:48,824 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 06:19:48,827 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 06:19:48,830 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 06:19:48,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 06:19:48,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 06:19:48,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 06:19:48,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 06:19:48,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 06:19:48,838 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 06:19:48,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 06:19:48,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 06:19:48,839 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 06:19:48,839 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 06:19:48,839 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 06:19:48,840 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 06:19:48,840 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 06:19:48,841 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 06:19:48,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 06:19:48,841 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 06:19:48,842 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 06:19:48,842 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 06:19:48,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 06:19:48,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 06:19:48,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 06:19:48,845 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 06:19:48,869 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 06:19:48,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 06:19:48,870 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 06:19:48,870 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 06:19:48,870 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 06:19:48,870 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 06:19:48,871 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 06:19:48,871 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 06:19:48,871 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 06:19:48,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 06:19:48,872 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 06:19:48,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 06:19:48,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 06:19:48,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 06:19:48,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 06:19:48,872 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 06:19:48,872 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 06:19:48,872 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 06:19:48,872 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 06:19:48,872 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 06:19:48,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 06:19:48,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 06:19:48,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 06:19:48,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:19:48,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 06:19:48,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 06:19:48,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 06:19:48,874 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 06:19:48,874 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 06:19:48,874 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 06:19:48,874 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 06:19:48,874 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 06:19:48,875 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 06:19:48,875 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 06:19:49,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 06:19:49,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 06:19:49,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 06:19:49,080 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 06:19:49,080 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 06:19:49,081 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product34.cil.c [2022-01-10 06:19:49,132 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d691fce67/48605c3047c2441992def3155ba0ba90/FLAG32bc75f15 [2022-01-10 06:19:49,534 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 06:19:49,534 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product34.cil.c [2022-01-10 06:19:49,568 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d691fce67/48605c3047c2441992def3155ba0ba90/FLAG32bc75f15 [2022-01-10 06:19:49,869 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d691fce67/48605c3047c2441992def3155ba0ba90 [2022-01-10 06:19:49,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 06:19:49,872 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 06:19:49,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 06:19:49,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 06:19:49,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 06:19:49,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:19:49" (1/1) ... [2022-01-10 06:19:49,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34907c1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:19:49, skipping insertion in model container [2022-01-10 06:19:49,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:19:49" (1/1) ... [2022-01-10 06:19:49,885 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 06:19:49,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:19:50,187 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_spec0_product34.cil.c[12611,12624] [2022-01-10 06:19:50,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:19:50,419 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 06:19:50,435 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:19:50,464 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_spec0_product34.cil.c[12611,12624] [2022-01-10 06:19:50,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:19:50,532 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 06:19:50,553 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_spec0_product34.cil.c[12611,12624] [2022-01-10 06:19:50,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:19:50,611 INFO L208 MainTranslator]: Completed translation [2022-01-10 06:19:50,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:19:50 WrapperNode [2022-01-10 06:19:50,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 06:19:50,613 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 06:19:50,613 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 06:19:50,613 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 06:19:50,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:19:50" (1/1) ... [2022-01-10 06:19:50,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:19:50" (1/1) ... [2022-01-10 06:19:50,695 INFO L137 Inliner]: procedures = 136, calls = 236, calls flagged for inlining = 62, calls inlined = 59, statements flattened = 1025 [2022-01-10 06:19:50,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 06:19:50,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 06:19:50,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 06:19:50,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 06:19:50,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:19:50" (1/1) ... [2022-01-10 06:19:50,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:19:50" (1/1) ... [2022-01-10 06:19:50,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:19:50" (1/1) ... [2022-01-10 06:19:50,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:19:50" (1/1) ... [2022-01-10 06:19:50,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:19:50" (1/1) ... [2022-01-10 06:19:50,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:19:50" (1/1) ... [2022-01-10 06:19:50,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:19:50" (1/1) ... [2022-01-10 06:19:50,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 06:19:50,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 06:19:50,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 06:19:50,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 06:19:50,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:19:50" (1/1) ... [2022-01-10 06:19:50,768 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:19:50,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 06:19:50,803 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 06:19:50,826 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-01-10 06:19:50,826 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-01-10 06:19:50,826 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-01-10 06:19:50,826 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-01-10 06:19:50,826 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-01-10 06:19:50,826 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-01-10 06:19:50,826 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-01-10 06:19:50,826 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-01-10 06:19:50,827 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-01-10 06:19:50,827 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-01-10 06:19:50,827 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-01-10 06:19:50,827 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-01-10 06:19:50,827 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-01-10 06:19:50,827 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-01-10 06:19:50,827 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-01-10 06:19:50,827 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-01-10 06:19:50,827 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-01-10 06:19:50,827 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-01-10 06:19:50,827 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-01-10 06:19:50,827 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-01-10 06:19:50,827 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-01-10 06:19:50,828 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-01-10 06:19:50,828 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-01-10 06:19:50,828 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-01-10 06:19:50,828 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-10 06:19:50,828 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-01-10 06:19:50,828 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-01-10 06:19:50,828 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-01-10 06:19:50,828 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-01-10 06:19:50,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 06:19:50,828 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-01-10 06:19:50,828 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-01-10 06:19:50,828 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-01-10 06:19:50,828 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-01-10 06:19:50,828 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-01-10 06:19:50,829 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-01-10 06:19:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-01-10 06:19:50,829 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-01-10 06:19:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-01-10 06:19:50,829 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-01-10 06:19:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-01-10 06:19:50,829 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-01-10 06:19:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 06:19:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-01-10 06:19:50,829 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-01-10 06:19:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-01-10 06:19:50,829 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-01-10 06:19:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-01-10 06:19:50,829 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-01-10 06:19:50,830 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-01-10 06:19:50,830 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-01-10 06:19:50,830 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-01-10 06:19:50,830 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-01-10 06:19:50,830 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-01-10 06:19:50,830 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-01-10 06:19:50,830 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-01-10 06:19:50,830 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-01-10 06:19:50,830 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-01-10 06:19:50,830 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-01-10 06:19:50,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 06:19:50,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 06:19:50,812 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 06:19:51,145 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 06:19:51,146 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 06:19:51,846 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 06:19:51,857 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 06:19:51,857 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 06:19:51,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:19:51 BoogieIcfgContainer [2022-01-10 06:19:51,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 06:19:51,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 06:19:51,861 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 06:19:51,863 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 06:19:51,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:19:49" (1/3) ... [2022-01-10 06:19:51,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1860a860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:19:51, skipping insertion in model container [2022-01-10 06:19:51,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:19:50" (2/3) ... [2022-01-10 06:19:51,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1860a860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:19:51, skipping insertion in model container [2022-01-10 06:19:51,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:19:51" (3/3) ... [2022-01-10 06:19:51,865 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec0_product34.cil.c [2022-01-10 06:19:51,868 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 06:19:51,868 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 06:19:51,907 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 06:19:51,912 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 06:19:51,912 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 06:19:51,944 INFO L276 IsEmpty]: Start isEmpty. Operand has 444 states, 344 states have (on average 1.5377906976744187) internal successors, (529), 349 states have internal predecessors, (529), 70 states have call successors, (70), 28 states have call predecessors, (70), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2022-01-10 06:19:51,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-01-10 06:19:51,971 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:19:51,972 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:19:51,972 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:19:51,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:19:51,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1517468300, now seen corresponding path program 1 times [2022-01-10 06:19:51,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:19:51,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1666633864] [2022-01-10 06:19:51,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:19:51,995 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:19:51,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:19:51,998 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 06:19:51,999 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 06:19:52,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:19:52,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 06:19:52,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:19:52,663 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-01-10 06:19:52,663 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:19:52,664 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:19:52,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1666633864] [2022-01-10 06:19:52,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1666633864] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:19:52,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:19:52,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:19:52,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762007006] [2022-01-10 06:19:52,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:19:52,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 06:19:52,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:19:52,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 06:19:52,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 06:19:52,696 INFO L87 Difference]: Start difference. First operand has 444 states, 344 states have (on average 1.5377906976744187) internal successors, (529), 349 states have internal predecessors, (529), 70 states have call successors, (70), 28 states have call predecessors, (70), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) Second operand has 2 states, 2 states have (on average 43.5) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-01-10 06:19:52,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:19:52,752 INFO L93 Difference]: Finished difference Result 695 states and 1028 transitions. [2022-01-10 06:19:52,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 06:19:52,754 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 43.5) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 173 [2022-01-10 06:19:52,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:19:52,766 INFO L225 Difference]: With dead ends: 695 [2022-01-10 06:19:52,767 INFO L226 Difference]: Without dead ends: 437 [2022-01-10 06:19:52,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 172 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 06:19:52,777 INFO L933 BasicCegarLoop]: 665 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, 665 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 06:19:52,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:19:52,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2022-01-10 06:19:52,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2022-01-10 06:19:52,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 338 states have (on average 1.532544378698225) internal successors, (518), 342 states have internal predecessors, (518), 70 states have call successors, (70), 28 states have call predecessors, (70), 28 states have return successors, (69), 68 states have call predecessors, (69), 69 states have call successors, (69) [2022-01-10 06:19:52,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 657 transitions. [2022-01-10 06:19:52,879 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 657 transitions. Word has length 173 [2022-01-10 06:19:52,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:19:52,881 INFO L470 AbstractCegarLoop]: Abstraction has 437 states and 657 transitions. [2022-01-10 06:19:52,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 43.5) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-01-10 06:19:52,881 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 657 transitions. [2022-01-10 06:19:52,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-01-10 06:19:52,886 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:19:52,886 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:19:52,904 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 06:19:53,097 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 06:19:53,098 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:19:53,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:19:53,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1749758496, now seen corresponding path program 1 times [2022-01-10 06:19:53,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:19:53,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1121049276] [2022-01-10 06:19:53,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:19:53,100 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:19:53,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:19:53,101 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 06:19:53,135 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 06:19:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:19:53,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 06:19:53,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:19:53,650 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-01-10 06:19:53,650 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:19:53,650 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:19:53,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1121049276] [2022-01-10 06:19:53,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1121049276] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:19:53,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:19:53,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:19:53,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438728865] [2022-01-10 06:19:53,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:19:53,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:19:53,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:19:53,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:19:53,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:19:53,657 INFO L87 Difference]: Start difference. First operand 437 states and 657 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, (25), 2 states have call predecessors, (25), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2022-01-10 06:19:53,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:19:53,741 INFO L93 Difference]: Finished difference Result 865 states and 1304 transitions. [2022-01-10 06:19:53,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:19:53,742 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, (25), 2 states have call predecessors, (25), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 174 [2022-01-10 06:19:53,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:19:53,746 INFO L225 Difference]: With dead ends: 865 [2022-01-10 06:19:53,746 INFO L226 Difference]: Without dead ends: 439 [2022-01-10 06:19:53,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 170 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 06:19:53,749 INFO L933 BasicCegarLoop]: 648 mSDtfsCounter, 152 mSDsluCounter, 1770 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2418 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 06:19:53,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 2418 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:19:53,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2022-01-10 06:19:53,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2022-01-10 06:19:53,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 339 states have (on average 1.5309734513274336) internal successors, (519), 344 states have internal predecessors, (519), 70 states have call successors, (70), 28 states have call predecessors, (70), 29 states have return successors, (71), 68 states have call predecessors, (71), 69 states have call successors, (71) [2022-01-10 06:19:53,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 660 transitions. [2022-01-10 06:19:53,792 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 660 transitions. Word has length 174 [2022-01-10 06:19:53,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:19:53,794 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 660 transitions. [2022-01-10 06:19:53,794 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, (25), 2 states have call predecessors, (25), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2022-01-10 06:19:53,795 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 660 transitions. [2022-01-10 06:19:53,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-01-10 06:19:53,800 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:19:53,800 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:19:53,820 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-01-10 06:19:54,012 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 06:19:54,012 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:19:54,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:19:54,014 INFO L85 PathProgramCache]: Analyzing trace with hash 151169238, now seen corresponding path program 1 times [2022-01-10 06:19:54,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:19:54,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [82734540] [2022-01-10 06:19:54,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:19:54,016 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:19:54,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:19:54,017 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 06:19:54,019 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 06:19:54,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:19:54,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:19:54,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:19:54,621 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-01-10 06:19:54,621 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:19:54,621 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:19:54,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [82734540] [2022-01-10 06:19:54,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [82734540] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:19:54,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:19:54,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:19:54,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055018222] [2022-01-10 06:19:54,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:19:54,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:19:54,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:19:54,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:19:54,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:19:54,623 INFO L87 Difference]: Start difference. First operand 439 states and 660 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-01-10 06:19:54,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:19:54,682 INFO L93 Difference]: Finished difference Result 867 states and 1308 transitions. [2022-01-10 06:19:54,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:19:54,683 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 175 [2022-01-10 06:19:54,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:19:54,685 INFO L225 Difference]: With dead ends: 867 [2022-01-10 06:19:54,685 INFO L226 Difference]: Without dead ends: 441 [2022-01-10 06:19:54,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 171 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 06:19:54,687 INFO L933 BasicCegarLoop]: 646 mSDtfsCounter, 151 mSDsluCounter, 1761 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2407 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 06:19:54,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 2407 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:19:54,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-01-10 06:19:54,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2022-01-10 06:19:54,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 340 states have (on average 1.5294117647058822) internal successors, (520), 346 states have internal predecessors, (520), 70 states have call successors, (70), 28 states have call predecessors, (70), 30 states have return successors, (75), 68 states have call predecessors, (75), 69 states have call successors, (75) [2022-01-10 06:19:54,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 665 transitions. [2022-01-10 06:19:54,703 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 665 transitions. Word has length 175 [2022-01-10 06:19:54,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:19:54,704 INFO L470 AbstractCegarLoop]: Abstraction has 441 states and 665 transitions. [2022-01-10 06:19:54,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-01-10 06:19:54,704 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 665 transitions. [2022-01-10 06:19:54,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 06:19:54,707 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:19:54,708 INFO L514 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:19:54,718 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-01-10 06:19:54,917 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 06:19:54,918 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:19:54,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:19:54,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1320092651, now seen corresponding path program 1 times [2022-01-10 06:19:54,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:19:54,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [720943255] [2022-01-10 06:19:54,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:19:54,920 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:19:54,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:19:54,930 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 06:19:54,931 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 06:19:55,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:19:55,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 06:19:55,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:19:55,483 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-01-10 06:19:55,483 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:19:55,483 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:19:55,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [720943255] [2022-01-10 06:19:55,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [720943255] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:19:55,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:19:55,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:19:55,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080597855] [2022-01-10 06:19:55,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:19:55,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:19:55,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:19:55,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:19:55,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:19:55,485 INFO L87 Difference]: Start difference. First operand 441 states and 665 transitions. Second operand has 5 states, 4 states have (on average 24.5) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2022-01-10 06:19:55,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:19:55,566 INFO L93 Difference]: Finished difference Result 859 states and 1298 transitions. [2022-01-10 06:19:55,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:19:55,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.5) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 176 [2022-01-10 06:19:55,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:19:55,569 INFO L225 Difference]: With dead ends: 859 [2022-01-10 06:19:55,569 INFO L226 Difference]: Without dead ends: 441 [2022-01-10 06:19:55,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 172 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 06:19:55,571 INFO L933 BasicCegarLoop]: 648 mSDtfsCounter, 150 mSDsluCounter, 1773 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 2421 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 06:19:55,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 2421 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:19:55,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-01-10 06:19:55,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2022-01-10 06:19:55,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 340 states have (on average 1.5294117647058822) internal successors, (520), 346 states have internal predecessors, (520), 70 states have call successors, (70), 28 states have call predecessors, (70), 30 states have return successors, (74), 68 states have call predecessors, (74), 69 states have call successors, (74) [2022-01-10 06:19:55,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 664 transitions. [2022-01-10 06:19:55,585 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 664 transitions. Word has length 176 [2022-01-10 06:19:55,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:19:55,586 INFO L470 AbstractCegarLoop]: Abstraction has 441 states and 664 transitions. [2022-01-10 06:19:55,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.5) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2022-01-10 06:19:55,586 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 664 transitions. [2022-01-10 06:19:55,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-01-10 06:19:55,588 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:19:55,588 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, 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 06:19:55,602 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-01-10 06:19:55,798 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 06:19:55,799 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:19:55,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:19:55,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1744293530, now seen corresponding path program 1 times [2022-01-10 06:19:55,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:19:55,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [292059794] [2022-01-10 06:19:55,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:19:55,800 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:19:55,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:19:55,816 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 06:19:55,827 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 06:19:56,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:19:56,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 06:19:56,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:19:56,292 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-01-10 06:19:56,292 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:19:56,292 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:19:56,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [292059794] [2022-01-10 06:19:56,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [292059794] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:19:56,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:19:56,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:19:56,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814181034] [2022-01-10 06:19:56,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:19:56,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:19:56,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:19:56,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:19:56,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:19:56,294 INFO L87 Difference]: Start difference. First operand 441 states and 664 transitions. Second operand has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-01-10 06:19:56,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:19:56,341 INFO L93 Difference]: Finished difference Result 861 states and 1301 transitions. [2022-01-10 06:19:56,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:19:56,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 158 [2022-01-10 06:19:56,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:19:56,345 INFO L225 Difference]: With dead ends: 861 [2022-01-10 06:19:56,345 INFO L226 Difference]: Without dead ends: 443 [2022-01-10 06:19:56,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 154 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 06:19:56,347 INFO L933 BasicCegarLoop]: 649 mSDtfsCounter, 148 mSDsluCounter, 1774 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 2423 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 06:19:56,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 2423 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:19:56,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-01-10 06:19:56,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2022-01-10 06:19:56,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 341 states have (on average 1.5278592375366569) internal successors, (521), 348 states have internal predecessors, (521), 70 states have call successors, (70), 28 states have call predecessors, (70), 31 states have return successors, (76), 68 states have call predecessors, (76), 69 states have call successors, (76) [2022-01-10 06:19:56,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 667 transitions. [2022-01-10 06:19:56,361 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 667 transitions. Word has length 158 [2022-01-10 06:19:56,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:19:56,361 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 667 transitions. [2022-01-10 06:19:56,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-01-10 06:19:56,362 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 667 transitions. [2022-01-10 06:19:56,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-01-10 06:19:56,363 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:19:56,364 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:19:56,387 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 06:19:56,590 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 06:19:56,591 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:19:56,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:19:56,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1262458811, now seen corresponding path program 1 times [2022-01-10 06:19:56,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:19:56,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1374979924] [2022-01-10 06:19:56,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:19:56,592 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:19:56,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:19:56,593 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 06:19:56,594 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 06:19:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:19:56,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 06:19:56,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:19:57,057 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-01-10 06:19:57,057 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:19:57,057 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:19:57,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1374979924] [2022-01-10 06:19:57,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1374979924] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:19:57,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:19:57,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:19:57,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539566597] [2022-01-10 06:19:57,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:19:57,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:19:57,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:19:57,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:19:57,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:19:57,059 INFO L87 Difference]: Start difference. First operand 443 states and 667 transitions. Second operand has 5 states, 4 states have (on average 23.25) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-01-10 06:19:57,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:19:57,118 INFO L93 Difference]: Finished difference Result 863 states and 1304 transitions. [2022-01-10 06:19:57,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:19:57,119 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.25) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 159 [2022-01-10 06:19:57,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:19:57,121 INFO L225 Difference]: With dead ends: 863 [2022-01-10 06:19:57,121 INFO L226 Difference]: Without dead ends: 445 [2022-01-10 06:19:57,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 156 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 06:19:57,127 INFO L933 BasicCegarLoop]: 648 mSDtfsCounter, 148 mSDsluCounter, 1773 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 2421 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:19:57,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 2421 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:19:57,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2022-01-10 06:19:57,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 443. [2022-01-10 06:19:57,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 341 states have (on average 1.5278592375366569) internal successors, (521), 348 states have internal predecessors, (521), 70 states have call successors, (70), 28 states have call predecessors, (70), 31 states have return successors, (76), 68 states have call predecessors, (76), 69 states have call successors, (76) [2022-01-10 06:19:57,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 667 transitions. [2022-01-10 06:19:57,146 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 667 transitions. Word has length 159 [2022-01-10 06:19:57,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:19:57,146 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 667 transitions. [2022-01-10 06:19:57,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.25) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-01-10 06:19:57,146 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 667 transitions. [2022-01-10 06:19:57,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-01-10 06:19:57,148 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:19:57,148 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:19:57,171 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 06:19:57,358 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 06:19:57,358 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:19:57,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:19:57,359 INFO L85 PathProgramCache]: Analyzing trace with hash -2124292413, now seen corresponding path program 1 times [2022-01-10 06:19:57,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:19:57,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1595613575] [2022-01-10 06:19:57,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:19:57,360 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:19:57,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:19:57,361 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 06:19:57,372 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 06:19:57,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:19:57,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 683 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:19:57,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:19:57,787 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-10 06:19:57,787 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:19:57,788 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:19:57,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1595613575] [2022-01-10 06:19:57,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1595613575] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:19:57,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:19:57,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:19:57,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957328258] [2022-01-10 06:19:57,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:19:57,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:19:57,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:19:57,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:19:57,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:19:57,790 INFO L87 Difference]: Start difference. First operand 443 states and 667 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-01-10 06:19:57,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:19:57,850 INFO L93 Difference]: Finished difference Result 859 states and 1296 transitions. [2022-01-10 06:19:57,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:19:57,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 159 [2022-01-10 06:19:57,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:19:57,852 INFO L225 Difference]: With dead ends: 859 [2022-01-10 06:19:57,852 INFO L226 Difference]: Without dead ends: 443 [2022-01-10 06:19:57,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 155 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 06:19:57,854 INFO L933 BasicCegarLoop]: 646 mSDtfsCounter, 149 mSDsluCounter, 1764 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 2410 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 06:19:57,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 2410 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:19:57,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-01-10 06:19:57,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2022-01-10 06:19:57,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 341 states have (on average 1.5278592375366569) internal successors, (521), 348 states have internal predecessors, (521), 70 states have call successors, (70), 28 states have call predecessors, (70), 31 states have return successors, (75), 68 states have call predecessors, (75), 69 states have call successors, (75) [2022-01-10 06:19:57,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 666 transitions. [2022-01-10 06:19:57,880 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 666 transitions. Word has length 159 [2022-01-10 06:19:57,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:19:57,881 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 666 transitions. [2022-01-10 06:19:57,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-01-10 06:19:57,881 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 666 transitions. [2022-01-10 06:19:57,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 06:19:57,882 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:19:57,882 INFO L514 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:19:57,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-01-10 06:19:58,092 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 06:19:58,092 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:19:58,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:19:58,093 INFO L85 PathProgramCache]: Analyzing trace with hash -79921577, now seen corresponding path program 1 times [2022-01-10 06:19:58,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:19:58,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2010170644] [2022-01-10 06:19:58,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:19:58,094 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:19:58,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:19:58,094 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 06:19:58,096 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 06:19:58,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:19:58,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:19:58,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:19:58,575 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-01-10 06:19:58,575 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:19:58,575 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:19:58,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2010170644] [2022-01-10 06:19:58,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2010170644] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:19:58,576 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:19:58,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:19:58,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995374309] [2022-01-10 06:19:58,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:19:58,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:19:58,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:19:58,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:19:58,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:19:58,577 INFO L87 Difference]: Start difference. First operand 443 states and 666 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, (25), 2 states have call predecessors, (25), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-01-10 06:19:58,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:19:58,644 INFO L93 Difference]: Finished difference Result 861 states and 1301 transitions. [2022-01-10 06:19:58,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:19:58,645 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, (25), 2 states have call predecessors, (25), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 179 [2022-01-10 06:19:58,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:19:58,646 INFO L225 Difference]: With dead ends: 861 [2022-01-10 06:19:58,647 INFO L226 Difference]: Without dead ends: 445 [2022-01-10 06:19:58,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 175 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 06:19:58,648 INFO L933 BasicCegarLoop]: 647 mSDtfsCounter, 147 mSDsluCounter, 1765 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 2412 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 06:19:58,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 2412 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:19:58,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2022-01-10 06:19:58,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 445. [2022-01-10 06:19:58,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 342 states have (on average 1.5263157894736843) internal successors, (522), 350 states have internal predecessors, (522), 70 states have call successors, (70), 28 states have call predecessors, (70), 32 states have return successors, (79), 68 states have call predecessors, (79), 69 states have call successors, (79) [2022-01-10 06:19:58,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 671 transitions. [2022-01-10 06:19:58,658 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 671 transitions. Word has length 179 [2022-01-10 06:19:58,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:19:58,658 INFO L470 AbstractCegarLoop]: Abstraction has 445 states and 671 transitions. [2022-01-10 06:19:58,659 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, (25), 2 states have call predecessors, (25), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-01-10 06:19:58,659 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 671 transitions. [2022-01-10 06:19:58,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-01-10 06:19:58,660 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:19:58,661 INFO L514 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:19:58,684 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 06:19:58,871 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 06:19:58,872 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:19:58,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:19:58,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1743171199, now seen corresponding path program 1 times [2022-01-10 06:19:58,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:19:58,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [980196990] [2022-01-10 06:19:58,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:19:58,873 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:19:58,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:19:58,874 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 06:19:58,875 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 06:19:59,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:19:59,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:19:59,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:19:59,364 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-01-10 06:19:59,365 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:19:59,365 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:19:59,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [980196990] [2022-01-10 06:19:59,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [980196990] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:19:59,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:19:59,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:19:59,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654892212] [2022-01-10 06:19:59,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:19:59,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:19:59,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:19:59,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:19:59,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:19:59,366 INFO L87 Difference]: Start difference. First operand 445 states and 671 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-01-10 06:19:59,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:19:59,380 INFO L93 Difference]: Finished difference Result 693 states and 1020 transitions. [2022-01-10 06:19:59,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:19:59,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 180 [2022-01-10 06:19:59,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:19:59,383 INFO L225 Difference]: With dead ends: 693 [2022-01-10 06:19:59,383 INFO L226 Difference]: Without dead ends: 448 [2022-01-10 06:19:59,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 178 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 06:19:59,384 INFO L933 BasicCegarLoop]: 655 mSDtfsCounter, 1 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1308 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 06:19:59,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1308 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:19:59,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2022-01-10 06:19:59,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 447. [2022-01-10 06:19:59,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 344 states have (on average 1.5232558139534884) internal successors, (524), 352 states have internal predecessors, (524), 70 states have call successors, (70), 28 states have call predecessors, (70), 32 states have return successors, (79), 68 states have call predecessors, (79), 69 states have call successors, (79) [2022-01-10 06:19:59,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 673 transitions. [2022-01-10 06:19:59,394 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 673 transitions. Word has length 180 [2022-01-10 06:19:59,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:19:59,394 INFO L470 AbstractCegarLoop]: Abstraction has 447 states and 673 transitions. [2022-01-10 06:19:59,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-01-10 06:19:59,394 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 673 transitions. [2022-01-10 06:19:59,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-01-10 06:19:59,396 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:19:59,396 INFO L514 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:19:59,407 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-01-10 06:19:59,605 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 06:19:59,606 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:19:59,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:19:59,606 INFO L85 PathProgramCache]: Analyzing trace with hash -899414038, now seen corresponding path program 1 times [2022-01-10 06:19:59,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:19:59,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1655563485] [2022-01-10 06:19:59,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:19:59,607 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:19:59,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:19:59,608 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 06:19:59,610 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 06:19:59,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:19:59,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:19:59,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:00,049 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-01-10 06:20:00,049 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:00,049 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:00,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1655563485] [2022-01-10 06:20:00,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1655563485] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:00,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:00,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:20:00,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783196676] [2022-01-10 06:20:00,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:00,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:20:00,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:00,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:20:00,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:20:00,050 INFO L87 Difference]: Start difference. First operand 447 states and 673 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-01-10 06:20:00,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:00,069 INFO L93 Difference]: Finished difference Result 938 states and 1432 transitions. [2022-01-10 06:20:00,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:20:00,069 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 186 [2022-01-10 06:20:00,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:00,071 INFO L225 Difference]: With dead ends: 938 [2022-01-10 06:20:00,071 INFO L226 Difference]: Without dead ends: 522 [2022-01-10 06:20:00,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 184 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 06:20:00,073 INFO L933 BasicCegarLoop]: 680 mSDtfsCounter, 134 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1292 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 06:20:00,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 1292 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:20:00,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2022-01-10 06:20:00,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 514. [2022-01-10 06:20:00,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 397 states have (on average 1.544080604534005) internal successors, (613), 405 states have internal predecessors, (613), 84 states have call successors, (84), 28 states have call predecessors, (84), 32 states have return successors, (95), 82 states have call predecessors, (95), 83 states have call successors, (95) [2022-01-10 06:20:00,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 792 transitions. [2022-01-10 06:20:00,087 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 792 transitions. Word has length 186 [2022-01-10 06:20:00,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:00,088 INFO L470 AbstractCegarLoop]: Abstraction has 514 states and 792 transitions. [2022-01-10 06:20:00,088 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-01-10 06:20:00,088 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 792 transitions. [2022-01-10 06:20:00,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-01-10 06:20:00,090 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:00,090 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:20:00,100 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 06:20:00,300 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 06:20:00,300 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:00,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:00,301 INFO L85 PathProgramCache]: Analyzing trace with hash 171029879, now seen corresponding path program 1 times [2022-01-10 06:20:00,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:00,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [754062358] [2022-01-10 06:20:00,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:00,301 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:00,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:00,312 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 06:20:00,324 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 06:20:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:00,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 06:20:00,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:00,766 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-01-10 06:20:00,767 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:20:01,032 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-01-10 06:20:01,033 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:01,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [754062358] [2022-01-10 06:20:01,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [754062358] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:20:01,033 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:20:01,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-01-10 06:20:01,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874494956] [2022-01-10 06:20:01,033 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:20:01,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 06:20:01,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:01,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 06:20:01,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:20:01,035 INFO L87 Difference]: Start difference. First operand 514 states and 792 transitions. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-01-10 06:20:01,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:01,320 INFO L93 Difference]: Finished difference Result 1201 states and 1911 transitions. [2022-01-10 06:20:01,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 06:20:01,320 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 168 [2022-01-10 06:20:01,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:01,325 INFO L225 Difference]: With dead ends: 1201 [2022-01-10 06:20:01,325 INFO L226 Difference]: Without dead ends: 956 [2022-01-10 06:20:01,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 330 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 06:20:01,326 INFO L933 BasicCegarLoop]: 731 mSDtfsCounter, 488 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 3019 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 06:20:01,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [524 Valid, 3019 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 06:20:01,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2022-01-10 06:20:01,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 932. [2022-01-10 06:20:01,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 932 states, 736 states have (on average 1.611413043478261) internal successors, (1186), 744 states have internal predecessors, (1186), 163 states have call successors, (163), 28 states have call predecessors, (163), 32 states have return successors, (184), 161 states have call predecessors, (184), 162 states have call successors, (184) [2022-01-10 06:20:01,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1533 transitions. [2022-01-10 06:20:01,359 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1533 transitions. Word has length 168 [2022-01-10 06:20:01,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:01,359 INFO L470 AbstractCegarLoop]: Abstraction has 932 states and 1533 transitions. [2022-01-10 06:20:01,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-01-10 06:20:01,359 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1533 transitions. [2022-01-10 06:20:01,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-01-10 06:20:01,363 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:01,363 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:20:01,375 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 06:20:01,573 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 06:20:01,573 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:01,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:01,574 INFO L85 PathProgramCache]: Analyzing trace with hash 31741594, now seen corresponding path program 1 times [2022-01-10 06:20:01,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:01,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1869232047] [2022-01-10 06:20:01,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:01,574 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:01,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:01,575 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 06:20:01,587 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 06:20:01,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:01,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 699 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:20:01,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:02,017 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-01-10 06:20:02,017 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:02,017 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:02,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1869232047] [2022-01-10 06:20:02,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1869232047] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:02,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:02,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:20:02,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697989637] [2022-01-10 06:20:02,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:02,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:20:02,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:02,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:20:02,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:20:02,019 INFO L87 Difference]: Start difference. First operand 932 states and 1533 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, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-01-10 06:20:02,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:02,062 INFO L93 Difference]: Finished difference Result 2219 states and 3703 transitions. [2022-01-10 06:20:02,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:20:02,063 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, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 174 [2022-01-10 06:20:02,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:02,069 INFO L225 Difference]: With dead ends: 2219 [2022-01-10 06:20:02,069 INFO L226 Difference]: Without dead ends: 1355 [2022-01-10 06:20:02,072 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 06:20:02,072 INFO L933 BasicCegarLoop]: 687 mSDtfsCounter, 132 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 1342 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 06:20:02,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 1342 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:20:02,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1355 states. [2022-01-10 06:20:02,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1355 to 1347. [2022-01-10 06:20:02,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1347 states, 1072 states have (on average 1.6287313432835822) internal successors, (1746), 1080 states have internal predecessors, (1746), 242 states have call successors, (242), 28 states have call predecessors, (242), 32 states have return successors, (273), 240 states have call predecessors, (273), 241 states have call successors, (273) [2022-01-10 06:20:02,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 2261 transitions. [2022-01-10 06:20:02,125 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 2261 transitions. Word has length 174 [2022-01-10 06:20:02,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:02,126 INFO L470 AbstractCegarLoop]: Abstraction has 1347 states and 2261 transitions. [2022-01-10 06:20:02,126 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, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-01-10 06:20:02,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 2261 transitions. [2022-01-10 06:20:02,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-01-10 06:20:02,132 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:02,132 INFO L514 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:20:02,163 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 06:20:02,342 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 06:20:02,342 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:02,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:02,343 INFO L85 PathProgramCache]: Analyzing trace with hash 269574954, now seen corresponding path program 1 times [2022-01-10 06:20:02,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:02,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [676275856] [2022-01-10 06:20:02,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:02,343 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:02,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:02,344 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 06:20:02,345 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 06:20:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:02,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 743 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:20:02,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:02,759 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-01-10 06:20:02,759 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:02,760 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:02,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [676275856] [2022-01-10 06:20:02,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [676275856] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:02,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:02,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:20:02,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550469306] [2022-01-10 06:20:02,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:02,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:20:02,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:02,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:20:02,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:20:02,761 INFO L87 Difference]: Start difference. First operand 1347 states and 2261 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-01-10 06:20:02,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:02,812 INFO L93 Difference]: Finished difference Result 3233 states and 5465 transitions. [2022-01-10 06:20:02,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:20:02,812 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 194 [2022-01-10 06:20:02,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:02,820 INFO L225 Difference]: With dead ends: 3233 [2022-01-10 06:20:02,820 INFO L226 Difference]: Without dead ends: 2007 [2022-01-10 06:20:02,824 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 06:20:02,825 INFO L933 BasicCegarLoop]: 679 mSDtfsCounter, 130 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1330 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 06:20:02,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 1330 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:20:02,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2007 states. [2022-01-10 06:20:02,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2007 to 1999. [2022-01-10 06:20:02,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1999 states, 1605 states have (on average 1.6404984423676012) internal successors, (2633), 1613 states have internal predecessors, (2633), 361 states have call successors, (361), 28 states have call predecessors, (361), 32 states have return successors, (392), 359 states have call predecessors, (392), 360 states have call successors, (392) [2022-01-10 06:20:02,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1999 states to 1999 states and 3386 transitions. [2022-01-10 06:20:02,884 INFO L78 Accepts]: Start accepts. Automaton has 1999 states and 3386 transitions. Word has length 194 [2022-01-10 06:20:02,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:02,884 INFO L470 AbstractCegarLoop]: Abstraction has 1999 states and 3386 transitions. [2022-01-10 06:20:02,885 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-01-10 06:20:02,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1999 states and 3386 transitions. [2022-01-10 06:20:02,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-01-10 06:20:02,893 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:02,893 INFO L514 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:20:02,915 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 06:20:03,103 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 06:20:03,104 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:03,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:03,104 INFO L85 PathProgramCache]: Analyzing trace with hash -969199599, now seen corresponding path program 1 times [2022-01-10 06:20:03,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:03,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [457886848] [2022-01-10 06:20:03,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:03,105 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:03,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:03,128 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 06:20:03,132 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 06:20:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:03,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:20:03,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:03,542 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-01-10 06:20:03,543 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:03,543 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:03,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [457886848] [2022-01-10 06:20:03,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [457886848] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:03,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:03,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:20:03,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419357439] [2022-01-10 06:20:03,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:03,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:20:03,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:03,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:20:03,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:20:03,544 INFO L87 Difference]: Start difference. First operand 1999 states and 3386 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-01-10 06:20:03,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:03,606 INFO L93 Difference]: Finished difference Result 4763 states and 8133 transitions. [2022-01-10 06:20:03,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:20:03,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 195 [2022-01-10 06:20:03,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:03,617 INFO L225 Difference]: With dead ends: 4763 [2022-01-10 06:20:03,617 INFO L226 Difference]: Without dead ends: 3010 [2022-01-10 06:20:03,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 193 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 06:20:03,648 INFO L933 BasicCegarLoop]: 671 mSDtfsCounter, 128 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1318 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 06:20:03,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 1318 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:20:03,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3010 states. [2022-01-10 06:20:03,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3010 to 3002. [2022-01-10 06:20:03,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3002 states, 2446 states have (on average 1.6496320523303352) internal successors, (4035), 2454 states have internal predecessors, (4035), 523 states have call successors, (523), 28 states have call predecessors, (523), 32 states have return successors, (570), 521 states have call predecessors, (570), 522 states have call successors, (570) [2022-01-10 06:20:03,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3002 states to 3002 states and 5128 transitions. [2022-01-10 06:20:03,754 INFO L78 Accepts]: Start accepts. Automaton has 3002 states and 5128 transitions. Word has length 195 [2022-01-10 06:20:03,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:03,755 INFO L470 AbstractCegarLoop]: Abstraction has 3002 states and 5128 transitions. [2022-01-10 06:20:03,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-01-10 06:20:03,755 INFO L276 IsEmpty]: Start isEmpty. Operand 3002 states and 5128 transitions. [2022-01-10 06:20:03,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-01-10 06:20:03,766 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:03,766 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, 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 06:20:03,777 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 06:20:03,977 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 06:20:03,977 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:03,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:03,978 INFO L85 PathProgramCache]: Analyzing trace with hash 107658430, now seen corresponding path program 1 times [2022-01-10 06:20:03,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:03,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1346434001] [2022-01-10 06:20:03,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:03,979 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:03,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:03,979 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 06:20:03,981 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 06:20:04,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:04,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 705 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:20:04,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:04,395 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-01-10 06:20:04,396 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:04,396 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:04,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1346434001] [2022-01-10 06:20:04,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1346434001] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:04,396 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:04,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:20:04,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979079370] [2022-01-10 06:20:04,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:04,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:20:04,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:04,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:20:04,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:20:04,397 INFO L87 Difference]: Start difference. First operand 3002 states and 5128 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-01-10 06:20:04,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:04,490 INFO L93 Difference]: Finished difference Result 7187 states and 12365 transitions. [2022-01-10 06:20:04,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:20:04,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 177 [2022-01-10 06:20:04,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:04,554 INFO L225 Difference]: With dead ends: 7187 [2022-01-10 06:20:04,555 INFO L226 Difference]: Without dead ends: 4635 [2022-01-10 06:20:04,563 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 06:20:04,563 INFO L933 BasicCegarLoop]: 671 mSDtfsCounter, 126 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1318 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 06:20:04,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 1318 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:20:04,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4635 states. [2022-01-10 06:20:04,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4635 to 4627. [2022-01-10 06:20:04,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4627 states, 3826 states have (on average 1.6560376372190277) internal successors, (6336), 3834 states have internal predecessors, (6336), 768 states have call successors, (768), 28 states have call predecessors, (768), 32 states have return successors, (841), 766 states have call predecessors, (841), 767 states have call successors, (841) [2022-01-10 06:20:04,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4627 states to 4627 states and 7945 transitions. [2022-01-10 06:20:04,711 INFO L78 Accepts]: Start accepts. Automaton has 4627 states and 7945 transitions. Word has length 177 [2022-01-10 06:20:04,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:04,712 INFO L470 AbstractCegarLoop]: Abstraction has 4627 states and 7945 transitions. [2022-01-10 06:20:04,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-01-10 06:20:04,712 INFO L276 IsEmpty]: Start isEmpty. Operand 4627 states and 7945 transitions. [2022-01-10 06:20:04,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-10 06:20:04,736 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:04,736 INFO L514 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:20:04,747 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 06:20:04,946 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 06:20:04,947 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:04,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:04,947 INFO L85 PathProgramCache]: Analyzing trace with hash -656128659, now seen corresponding path program 1 times [2022-01-10 06:20:04,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:04,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1548555214] [2022-01-10 06:20:04,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:04,948 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:04,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:04,949 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 06:20:04,950 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 06:20:05,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:05,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 749 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:20:05,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:05,417 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-01-10 06:20:05,417 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:05,417 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:05,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1548555214] [2022-01-10 06:20:05,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1548555214] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:05,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:05,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:20:05,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238106195] [2022-01-10 06:20:05,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:05,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:20:05,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:05,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:20:05,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:20:05,418 INFO L87 Difference]: Start difference. First operand 4627 states and 7945 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-01-10 06:20:05,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:05,578 INFO L93 Difference]: Finished difference Result 11233 states and 19425 transitions. [2022-01-10 06:20:05,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:20:05,579 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 197 [2022-01-10 06:20:05,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:05,608 INFO L225 Difference]: With dead ends: 11233 [2022-01-10 06:20:05,608 INFO L226 Difference]: Without dead ends: 7368 [2022-01-10 06:20:05,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 195 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 06:20:05,622 INFO L933 BasicCegarLoop]: 688 mSDtfsCounter, 124 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1335 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 06:20:05,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 1335 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:20:05,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7368 states. [2022-01-10 06:20:05,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7368 to 7360. [2022-01-10 06:20:05,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7360 states, 6066 states have (on average 1.655291790306627) internal successors, (10041), 6074 states have internal predecessors, (10041), 1261 states have call successors, (1261), 28 states have call predecessors, (1261), 32 states have return successors, (1378), 1259 states have call predecessors, (1378), 1260 states have call successors, (1378) [2022-01-10 06:20:05,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7360 states to 7360 states and 12680 transitions. [2022-01-10 06:20:05,908 INFO L78 Accepts]: Start accepts. Automaton has 7360 states and 12680 transitions. Word has length 197 [2022-01-10 06:20:05,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:05,908 INFO L470 AbstractCegarLoop]: Abstraction has 7360 states and 12680 transitions. [2022-01-10 06:20:05,908 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-01-10 06:20:05,908 INFO L276 IsEmpty]: Start isEmpty. Operand 7360 states and 12680 transitions. [2022-01-10 06:20:05,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 06:20:05,942 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:05,943 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:20:05,974 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2022-01-10 06:20:06,175 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 06:20:06,176 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:06,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:06,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1871754394, now seen corresponding path program 1 times [2022-01-10 06:20:06,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:06,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [703599386] [2022-01-10 06:20:06,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:06,177 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:06,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:06,178 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 06:20:06,213 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 06:20:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:06,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:20:06,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:06,619 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-01-10 06:20:06,619 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:06,619 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:06,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [703599386] [2022-01-10 06:20:06,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [703599386] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:06,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:06,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:20:06,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376822668] [2022-01-10 06:20:06,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:06,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:20:06,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:06,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:20:06,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:20:06,620 INFO L87 Difference]: Start difference. First operand 7360 states and 12680 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, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-01-10 06:20:06,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:06,912 INFO L93 Difference]: Finished difference Result 18568 states and 32198 transitions. [2022-01-10 06:20:06,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:20:06,913 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, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 179 [2022-01-10 06:20:06,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:06,979 INFO L225 Difference]: With dead ends: 18568 [2022-01-10 06:20:06,979 INFO L226 Difference]: Without dead ends: 12347 [2022-01-10 06:20:07,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 177 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 06:20:07,004 INFO L933 BasicCegarLoop]: 680 mSDtfsCounter, 122 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1331 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 06:20:07,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 1331 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:20:07,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12347 states. [2022-01-10 06:20:07,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12347 to 12339. [2022-01-10 06:20:07,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12339 states, 10223 states have (on average 1.656167465518928) internal successors, (16931), 10231 states have internal predecessors, (16931), 2083 states have call successors, (2083), 28 states have call predecessors, (2083), 32 states have return successors, (2278), 2081 states have call predecessors, (2278), 2082 states have call successors, (2278) [2022-01-10 06:20:07,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12339 states to 12339 states and 21292 transitions. [2022-01-10 06:20:07,545 INFO L78 Accepts]: Start accepts. Automaton has 12339 states and 21292 transitions. Word has length 179 [2022-01-10 06:20:07,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:07,545 INFO L470 AbstractCegarLoop]: Abstraction has 12339 states and 21292 transitions. [2022-01-10 06:20:07,545 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, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-01-10 06:20:07,546 INFO L276 IsEmpty]: Start isEmpty. Operand 12339 states and 21292 transitions. [2022-01-10 06:20:07,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-01-10 06:20:07,580 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:07,581 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, 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 06:20:07,606 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 06:20:07,791 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 06:20:07,791 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:07,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:07,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1097619218, now seen corresponding path program 1 times [2022-01-10 06:20:07,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:07,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [794551838] [2022-01-10 06:20:07,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:07,792 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:07,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:07,793 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 06:20:07,794 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 06:20:08,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:08,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 711 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:20:08,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:08,206 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-01-10 06:20:08,206 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:08,206 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:08,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [794551838] [2022-01-10 06:20:08,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [794551838] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:08,206 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:08,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:20:08,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95436964] [2022-01-10 06:20:08,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:08,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:20:08,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:08,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:20:08,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:20:08,209 INFO L87 Difference]: Start difference. First operand 12339 states and 21292 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-01-10 06:20:08,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:08,673 INFO L93 Difference]: Finished difference Result 29526 states and 50882 transitions. [2022-01-10 06:20:08,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:20:08,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 180 [2022-01-10 06:20:08,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:08,731 INFO L225 Difference]: With dead ends: 29526 [2022-01-10 06:20:08,732 INFO L226 Difference]: Without dead ends: 19300 [2022-01-10 06:20:08,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 178 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 06:20:08,767 INFO L933 BasicCegarLoop]: 671 mSDtfsCounter, 120 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1293 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 06:20:08,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 1293 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:20:08,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19300 states. [2022-01-10 06:20:09,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19300 to 19292. [2022-01-10 06:20:09,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19292 states, 15973 states have (on average 1.6323170349965568) internal successors, (26073), 15981 states have internal predecessors, (26073), 3286 states have call successors, (3286), 28 states have call predecessors, (3286), 32 states have return successors, (3625), 3284 states have call predecessors, (3625), 3285 states have call successors, (3625) [2022-01-10 06:20:09,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19292 states to 19292 states and 32984 transitions. [2022-01-10 06:20:09,652 INFO L78 Accepts]: Start accepts. Automaton has 19292 states and 32984 transitions. Word has length 180 [2022-01-10 06:20:09,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:09,652 INFO L470 AbstractCegarLoop]: Abstraction has 19292 states and 32984 transitions. [2022-01-10 06:20:09,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-01-10 06:20:09,652 INFO L276 IsEmpty]: Start isEmpty. Operand 19292 states and 32984 transitions. [2022-01-10 06:20:09,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-01-10 06:20:09,700 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:09,701 INFO L514 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:20:09,725 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2022-01-10 06:20:09,911 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 06:20:09,911 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:09,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:09,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1391275280, now seen corresponding path program 1 times [2022-01-10 06:20:09,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:09,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [505699621] [2022-01-10 06:20:09,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:09,913 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:09,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:09,930 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 06:20:09,969 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 06:20:10,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:10,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 755 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:20:10,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:10,403 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-01-10 06:20:10,403 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:10,403 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:10,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [505699621] [2022-01-10 06:20:10,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [505699621] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:10,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:10,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:20:10,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302065118] [2022-01-10 06:20:10,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:10,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:20:10,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:10,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:20:10,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:20:10,404 INFO L87 Difference]: Start difference. First operand 19292 states and 32984 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-01-10 06:20:11,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:11,356 INFO L93 Difference]: Finished difference Result 50958 states and 87462 transitions. [2022-01-10 06:20:11,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:20:11,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 200 [2022-01-10 06:20:11,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:11,635 INFO L225 Difference]: With dead ends: 50958 [2022-01-10 06:20:11,635 INFO L226 Difference]: Without dead ends: 34421 [2022-01-10 06:20:11,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 198 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 06:20:11,670 INFO L933 BasicCegarLoop]: 673 mSDtfsCounter, 118 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1323 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 06:20:11,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 1323 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:20:11,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34421 states. [2022-01-10 06:20:12,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34421 to 34413. [2022-01-10 06:20:12,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34413 states, 28644 states have (on average 1.629521016617791) internal successors, (46676), 28652 states have internal predecessors, (46676), 5736 states have call successors, (5736), 28 states have call predecessors, (5736), 32 states have return successors, (6349), 5734 states have call predecessors, (6349), 5735 states have call successors, (6349) [2022-01-10 06:20:13,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34413 states to 34413 states and 58761 transitions. [2022-01-10 06:20:13,170 INFO L78 Accepts]: Start accepts. Automaton has 34413 states and 58761 transitions. Word has length 200 [2022-01-10 06:20:13,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:13,170 INFO L470 AbstractCegarLoop]: Abstraction has 34413 states and 58761 transitions. [2022-01-10 06:20:13,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-01-10 06:20:13,170 INFO L276 IsEmpty]: Start isEmpty. Operand 34413 states and 58761 transitions. [2022-01-10 06:20:13,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-10 06:20:13,244 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:13,244 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, 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 06:20:13,255 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2022-01-10 06:20:13,455 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 06:20:13,456 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:13,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:13,456 INFO L85 PathProgramCache]: Analyzing trace with hash 875251572, now seen corresponding path program 1 times [2022-01-10 06:20:13,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:13,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [427883509] [2022-01-10 06:20:13,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:13,457 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:13,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:13,458 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 06:20:13,496 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 06:20:13,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:13,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:20:13,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:13,901 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-01-10 06:20:13,901 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:13,901 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:13,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [427883509] [2022-01-10 06:20:13,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [427883509] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:13,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:13,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:20:13,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862288119] [2022-01-10 06:20:13,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:13,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:20:13,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:13,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:20:13,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:20:13,903 INFO L87 Difference]: Start difference. First operand 34413 states and 58761 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, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-01-10 06:20:15,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:15,844 INFO L93 Difference]: Finished difference Result 93830 states and 160724 transitions. [2022-01-10 06:20:15,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:20:15,844 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, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 182 [2022-01-10 06:20:15,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:16,182 INFO L225 Difference]: With dead ends: 93830 [2022-01-10 06:20:16,182 INFO L226 Difference]: Without dead ends: 63088 [2022-01-10 06:20:16,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 180 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 06:20:16,269 INFO L933 BasicCegarLoop]: 674 mSDtfsCounter, 116 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1324 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 06:20:16,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 1324 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:20:16,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63088 states. [2022-01-10 06:20:18,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63088 to 63080. [2022-01-10 06:20:18,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63080 states, 52798 states have (on average 1.6255729383688775) internal successors, (85827), 52806 states have internal predecessors, (85827), 10249 states have call successors, (10249), 28 states have call predecessors, (10249), 32 states have return successors, (11394), 10247 states have call predecessors, (11394), 10248 states have call successors, (11394) [2022-01-10 06:20:19,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63080 states to 63080 states and 107470 transitions. [2022-01-10 06:20:19,126 INFO L78 Accepts]: Start accepts. Automaton has 63080 states and 107470 transitions. Word has length 182 [2022-01-10 06:20:19,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:19,127 INFO L470 AbstractCegarLoop]: Abstraction has 63080 states and 107470 transitions. [2022-01-10 06:20:19,127 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, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-01-10 06:20:19,127 INFO L276 IsEmpty]: Start isEmpty. Operand 63080 states and 107470 transitions. [2022-01-10 06:20:19,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-01-10 06:20:19,390 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:19,391 INFO L514 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:20:19,401 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 06:20:19,601 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 06:20:19,602 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:19,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:19,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1807964656, now seen corresponding path program 1 times [2022-01-10 06:20:19,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:19,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522839808] [2022-01-10 06:20:19,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:19,603 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:19,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:19,604 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 06:20:19,605 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 06:20:19,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:19,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 759 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:20:19,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:20,094 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-01-10 06:20:20,094 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:20:20,094 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:20,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522839808] [2022-01-10 06:20:20,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1522839808] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:20:20,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:20:20,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:20:20,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149226581] [2022-01-10 06:20:20,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:20:20,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:20:20,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:20,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:20:20,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:20:20,095 INFO L87 Difference]: Start difference. First operand 63080 states and 107470 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-01-10 06:20:23,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:23,096 INFO L93 Difference]: Finished difference Result 118206 states and 201789 transitions. [2022-01-10 06:20:23,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:20:23,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 202 [2022-01-10 06:20:23,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:23,662 INFO L225 Difference]: With dead ends: 118206 [2022-01-10 06:20:23,662 INFO L226 Difference]: Without dead ends: 117961 [2022-01-10 06:20:23,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 200 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 06:20:23,720 INFO L933 BasicCegarLoop]: 673 mSDtfsCounter, 114 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1323 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 06:20:23,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 1323 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:20:23,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117961 states. [2022-01-10 06:20:28,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117961 to 117953. [2022-01-10 06:20:28,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117953 states, 99303 states have (on average 1.6204747087197768) internal successors, (160918), 99311 states have internal predecessors, (160918), 18617 states have call successors, (18617), 28 states have call predecessors, (18617), 32 states have return successors, (20808), 18615 states have call predecessors, (20808), 18616 states have call successors, (20808) [2022-01-10 06:20:28,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117953 states to 117953 states and 200343 transitions. [2022-01-10 06:20:28,871 INFO L78 Accepts]: Start accepts. Automaton has 117953 states and 200343 transitions. Word has length 202 [2022-01-10 06:20:28,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:20:28,871 INFO L470 AbstractCegarLoop]: Abstraction has 117953 states and 200343 transitions. [2022-01-10 06:20:28,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-01-10 06:20:28,871 INFO L276 IsEmpty]: Start isEmpty. Operand 117953 states and 200343 transitions. [2022-01-10 06:20:29,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-01-10 06:20:29,025 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:20:29,027 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:20:29,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-01-10 06:20:29,238 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 06:20:29,253 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:20:29,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:20:29,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1834511477, now seen corresponding path program 1 times [2022-01-10 06:20:29,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:20:29,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [943733398] [2022-01-10 06:20:29,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:20:29,254 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:20:29,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:20:29,257 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 06:20:29,291 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 06:20:29,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:20:29,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-10 06:20:29,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:20:30,138 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-10 06:20:30,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:20:30,551 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-01-10 06:20:30,552 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:20:30,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [943733398] [2022-01-10 06:20:30,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [943733398] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:20:30,552 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:20:30,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-01-10 06:20:30,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772135118] [2022-01-10 06:20:30,552 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:20:30,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-10 06:20:30,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:20:30,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-10 06:20:30,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-01-10 06:20:30,553 INFO L87 Difference]: Start difference. First operand 117953 states and 200343 transitions. Second operand has 16 states, 16 states have (on average 12.75) internal successors, (204), 14 states have internal predecessors, (204), 4 states have call successors, (41), 6 states have call predecessors, (41), 9 states have return successors, (37), 6 states have call predecessors, (37), 4 states have call successors, (37) [2022-01-10 06:20:43,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:20:43,729 INFO L93 Difference]: Finished difference Result 347427 states and 596807 transitions. [2022-01-10 06:20:43,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-10 06:20:43,731 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 12.75) internal successors, (204), 14 states have internal predecessors, (204), 4 states have call successors, (41), 6 states have call predecessors, (41), 9 states have return successors, (37), 6 states have call predecessors, (37), 4 states have call successors, (37) Word has length 184 [2022-01-10 06:20:43,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:20:45,587 INFO L225 Difference]: With dead ends: 347427 [2022-01-10 06:20:45,587 INFO L226 Difference]: Without dead ends: 347188 [2022-01-10 06:20:45,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 353 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 06:20:45,956 INFO L933 BasicCegarLoop]: 816 mSDtfsCounter, 2364 mSDsluCounter, 2587 mSDsCounter, 0 mSdLazyCounter, 5566 mSolverCounterSat, 699 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2443 SdHoareTripleChecker+Valid, 3403 SdHoareTripleChecker+Invalid, 6265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 699 IncrementalHoareTripleChecker+Valid, 5566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-01-10 06:20:45,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2443 Valid, 3403 Invalid, 6265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [699 Valid, 5566 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-01-10 06:20:46,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347188 states.