/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec1_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 06:22:05,838 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 06:22:05,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 06:22:05,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 06:22:05,882 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 06:22:05,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 06:22:05,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 06:22:05,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 06:22:05,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 06:22:05,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 06:22:05,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 06:22:05,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 06:22:05,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 06:22:05,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 06:22:05,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 06:22:05,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 06:22:05,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 06:22:05,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 06:22:05,910 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 06:22:05,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 06:22:05,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 06:22:05,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 06:22:05,925 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 06:22:05,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 06:22:05,928 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 06:22:05,928 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 06:22:05,928 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 06:22:05,929 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 06:22:05,929 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 06:22:05,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 06:22:05,930 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 06:22:05,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 06:22:05,931 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 06:22:05,932 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 06:22:05,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 06:22:05,932 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 06:22:05,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 06:22:05,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 06:22:05,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 06:22:05,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 06:22:05,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 06:22:05,942 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-01-10 06:22:05,968 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 06:22:05,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 06:22:05,969 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 06:22:05,969 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 06:22:05,969 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 06:22:05,969 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 06:22:05,970 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 06:22:05,970 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 06:22:05,970 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 06:22:05,976 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 06:22:05,977 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 06:22:05,977 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 06:22:05,977 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 06:22:05,977 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 06:22:05,977 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 06:22:05,977 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 06:22:05,978 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 06:22:05,978 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 06:22:05,978 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 06:22:05,978 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 06:22:05,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 06:22:05,979 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 06:22:05,979 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 06:22:05,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:22:05,979 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 06:22:05,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 06:22:05,980 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 06:22:05,980 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 06:22:05,980 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 06:22:05,980 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 06:22:05,980 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 06:22:05,980 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 06:22:05,980 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 06:22:05,980 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 06:22:06,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 06:22:06,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 06:22:06,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 06:22:06,233 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 06:22:06,246 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 06:22:06,247 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product29.cil.c [2022-01-10 06:22:06,304 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1a0678ae/e26f19987b7b471d9acf10b70edd00e0/FLAG4cb4d8c00 [2022-01-10 06:22:06,787 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 06:22:06,787 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product29.cil.c [2022-01-10 06:22:06,804 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1a0678ae/e26f19987b7b471d9acf10b70edd00e0/FLAG4cb4d8c00 [2022-01-10 06:22:07,328 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1a0678ae/e26f19987b7b471d9acf10b70edd00e0 [2022-01-10 06:22:07,330 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 06:22:07,331 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 06:22:07,333 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 06:22:07,333 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 06:22:07,336 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 06:22:07,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:22:07" (1/1) ... [2022-01-10 06:22:07,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60419bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:22:07, skipping insertion in model container [2022-01-10 06:22:07,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:22:07" (1/1) ... [2022-01-10 06:22:07,341 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 06:22:07,410 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:22:07,662 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product29.cil.c[32754,32767] [2022-01-10 06:22:07,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:22:07,779 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 06:22:07,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:22:07,830 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product29.cil.c[32754,32767] [2022-01-10 06:22:07,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:22:07,886 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 06:22:07,917 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product29.cil.c[32754,32767] [2022-01-10 06:22:07,938 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:22:07,960 INFO L208 MainTranslator]: Completed translation [2022-01-10 06:22:07,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:22:07 WrapperNode [2022-01-10 06:22:07,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 06:22:07,961 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 06:22:07,961 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 06:22:07,961 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 06:22:07,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:22:07" (1/1) ... [2022-01-10 06:22:07,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:22:07" (1/1) ... [2022-01-10 06:22:08,054 INFO L137 Inliner]: procedures = 133, calls = 227, calls flagged for inlining = 55, calls inlined = 47, statements flattened = 871 [2022-01-10 06:22:08,054 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 06:22:08,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 06:22:08,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 06:22:08,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 06:22:08,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:22:07" (1/1) ... [2022-01-10 06:22:08,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:22:07" (1/1) ... [2022-01-10 06:22:08,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:22:07" (1/1) ... [2022-01-10 06:22:08,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:22:07" (1/1) ... [2022-01-10 06:22:08,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:22:07" (1/1) ... [2022-01-10 06:22:08,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:22:07" (1/1) ... [2022-01-10 06:22:08,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:22:07" (1/1) ... [2022-01-10 06:22:08,114 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 06:22:08,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 06:22:08,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 06:22:08,115 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 06:22:08,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:22:07" (1/1) ... [2022-01-10 06:22:08,131 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:22:08,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 06:22:08,176 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 06:22:08,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 06:22:08,219 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-01-10 06:22:08,219 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-01-10 06:22:08,219 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-01-10 06:22:08,219 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-01-10 06:22:08,219 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-01-10 06:22:08,219 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-01-10 06:22:08,219 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-01-10 06:22:08,219 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-01-10 06:22:08,219 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-01-10 06:22:08,219 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-01-10 06:22:08,220 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-01-10 06:22:08,220 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-01-10 06:22:08,220 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-01-10 06:22:08,220 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-01-10 06:22:08,220 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-01-10 06:22:08,220 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-01-10 06:22:08,220 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-01-10 06:22:08,220 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-01-10 06:22:08,220 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-01-10 06:22:08,220 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-01-10 06:22:08,220 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-01-10 06:22:08,220 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-01-10 06:22:08,220 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-01-10 06:22:08,221 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-01-10 06:22:08,221 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-10 06:22:08,221 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-01-10 06:22:08,221 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-01-10 06:22:08,221 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-01-10 06:22:08,221 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-01-10 06:22:08,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 06:22:08,221 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-01-10 06:22:08,221 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-01-10 06:22:08,221 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-01-10 06:22:08,221 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-01-10 06:22:08,221 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-01-10 06:22:08,221 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-01-10 06:22:08,222 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-01-10 06:22:08,222 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-01-10 06:22:08,222 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-01-10 06:22:08,222 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-01-10 06:22:08,222 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-01-10 06:22:08,222 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-01-10 06:22:08,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 06:22:08,222 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-01-10 06:22:08,222 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-01-10 06:22:08,223 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-01-10 06:22:08,223 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-01-10 06:22:08,223 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-01-10 06:22:08,223 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-01-10 06:22:08,223 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-01-10 06:22:08,223 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-01-10 06:22:08,223 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-01-10 06:22:08,224 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-01-10 06:22:08,224 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-01-10 06:22:08,224 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-01-10 06:22:08,224 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-01-10 06:22:08,224 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-01-10 06:22:08,225 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-01-10 06:22:08,225 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-01-10 06:22:08,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 06:22:08,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 06:22:08,457 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 06:22:08,458 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 06:22:09,169 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 06:22:09,192 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 06:22:09,192 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 06:22:09,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:22:09 BoogieIcfgContainer [2022-01-10 06:22:09,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 06:22:09,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 06:22:09,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 06:22:09,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 06:22:09,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:22:07" (1/3) ... [2022-01-10 06:22:09,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c2af9d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:22:09, skipping insertion in model container [2022-01-10 06:22:09,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:22:07" (2/3) ... [2022-01-10 06:22:09,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c2af9d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:22:09, skipping insertion in model container [2022-01-10 06:22:09,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:22:09" (3/3) ... [2022-01-10 06:22:09,200 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec1_product29.cil.c [2022-01-10 06:22:09,203 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 06:22:09,203 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 06:22:09,254 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 06:22:09,261 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 06:22:09,261 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 06:22:09,280 INFO L276 IsEmpty]: Start isEmpty. Operand has 408 states, 315 states have (on average 1.5555555555555556) internal successors, (490), 320 states have internal predecessors, (490), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2022-01-10 06:22:09,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 06:22:09,291 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:09,292 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:22:09,293 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:09,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:09,297 INFO L85 PathProgramCache]: Analyzing trace with hash 200038821, now seen corresponding path program 1 times [2022-01-10 06:22:09,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:09,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1504718070] [2022-01-10 06:22:09,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:09,310 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:09,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:09,329 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:09,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-01-10 06:22:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:09,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 06:22:09,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:09,801 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-01-10 06:22:09,801 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:09,802 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:09,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1504718070] [2022-01-10 06:22:09,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1504718070] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:09,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:09,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:22:09,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486448631] [2022-01-10 06:22:09,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:09,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 06:22:09,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:09,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 06:22:09,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 06:22:09,846 INFO L87 Difference]: Start difference. First operand has 408 states, 315 states have (on average 1.5555555555555556) internal successors, (490), 320 states have internal predecessors, (490), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:09,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:09,902 INFO L93 Difference]: Finished difference Result 628 states and 930 transitions. [2022-01-10 06:22:09,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 06:22:09,905 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 110 [2022-01-10 06:22:09,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:09,914 INFO L225 Difference]: With dead ends: 628 [2022-01-10 06:22:09,914 INFO L226 Difference]: Without dead ends: 401 [2022-01-10 06:22:09,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 06:22:09,926 INFO L933 BasicCegarLoop]: 612 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, 612 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:09,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:09,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2022-01-10 06:22:09,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2022-01-10 06:22:10,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 309 states have (on average 1.5501618122977345) internal successors, (479), 313 states have internal predecessors, (479), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-01-10 06:22:10,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 604 transitions. [2022-01-10 06:22:10,017 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 604 transitions. Word has length 110 [2022-01-10 06:22:10,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:10,019 INFO L470 AbstractCegarLoop]: Abstraction has 401 states and 604 transitions. [2022-01-10 06:22:10,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:10,019 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 604 transitions. [2022-01-10 06:22:10,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-01-10 06:22:10,037 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:10,037 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:22:10,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-01-10 06:22:10,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:10,248 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:10,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:10,248 INFO L85 PathProgramCache]: Analyzing trace with hash 2069503229, now seen corresponding path program 1 times [2022-01-10 06:22:10,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:10,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [864241603] [2022-01-10 06:22:10,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:10,249 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:10,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:10,250 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:10,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-01-10 06:22:10,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:10,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 06:22:10,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:10,676 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 06:22:10,677 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:10,677 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:10,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [864241603] [2022-01-10 06:22:10,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [864241603] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:10,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:10,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:22:10,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985320081] [2022-01-10 06:22:10,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:10,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:22:10,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:10,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:22:10,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:22:10,684 INFO L87 Difference]: Start difference. First operand 401 states and 604 transitions. Second operand has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-01-10 06:22:10,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:10,772 INFO L93 Difference]: Finished difference Result 793 states and 1198 transitions. [2022-01-10 06:22:10,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:22:10,773 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 111 [2022-01-10 06:22:10,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:10,779 INFO L225 Difference]: With dead ends: 793 [2022-01-10 06:22:10,779 INFO L226 Difference]: Without dead ends: 403 [2022-01-10 06:22:10,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:22:10,781 INFO L933 BasicCegarLoop]: 595 mSDtfsCounter, 144 mSDsluCounter, 1619 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 2214 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:10,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 2214 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:10,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-01-10 06:22:10,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2022-01-10 06:22:10,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 310 states have (on average 1.5483870967741935) internal successors, (480), 315 states have internal predecessors, (480), 63 states have call successors, (63), 28 states have call predecessors, (63), 29 states have return successors, (64), 61 states have call predecessors, (64), 62 states have call successors, (64) [2022-01-10 06:22:10,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 607 transitions. [2022-01-10 06:22:10,804 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 607 transitions. Word has length 111 [2022-01-10 06:22:10,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:10,804 INFO L470 AbstractCegarLoop]: Abstraction has 403 states and 607 transitions. [2022-01-10 06:22:10,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-01-10 06:22:10,804 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 607 transitions. [2022-01-10 06:22:10,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-10 06:22:10,806 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:10,806 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:22:10,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-01-10 06:22:11,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:11,016 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:11,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:11,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1288002597, now seen corresponding path program 1 times [2022-01-10 06:22:11,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:11,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1729823093] [2022-01-10 06:22:11,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:11,019 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:11,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:11,020 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:11,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-01-10 06:22:11,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:11,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:22:11,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:11,422 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 06:22:11,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:11,423 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:11,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1729823093] [2022-01-10 06:22:11,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1729823093] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:11,423 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:11,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:22:11,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100057549] [2022-01-10 06:22:11,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:11,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:22:11,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:11,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:22:11,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:22:11,424 INFO L87 Difference]: Start difference. First operand 403 states and 607 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-01-10 06:22:11,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:11,491 INFO L93 Difference]: Finished difference Result 795 states and 1202 transitions. [2022-01-10 06:22:11,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:22:11,491 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 112 [2022-01-10 06:22:11,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:11,493 INFO L225 Difference]: With dead ends: 795 [2022-01-10 06:22:11,493 INFO L226 Difference]: Without dead ends: 405 [2022-01-10 06:22:11,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:22:11,495 INFO L933 BasicCegarLoop]: 593 mSDtfsCounter, 143 mSDsluCounter, 1610 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 2203 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:11,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 2203 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:11,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-01-10 06:22:11,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2022-01-10 06:22:11,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 311 states have (on average 1.5466237942122187) internal successors, (481), 317 states have internal predecessors, (481), 63 states have call successors, (63), 28 states have call predecessors, (63), 30 states have return successors, (68), 61 states have call predecessors, (68), 62 states have call successors, (68) [2022-01-10 06:22:11,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 612 transitions. [2022-01-10 06:22:11,543 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 612 transitions. Word has length 112 [2022-01-10 06:22:11,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:11,543 INFO L470 AbstractCegarLoop]: Abstraction has 405 states and 612 transitions. [2022-01-10 06:22:11,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-01-10 06:22:11,543 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 612 transitions. [2022-01-10 06:22:11,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 06:22:11,545 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:11,545 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:22:11,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-01-10 06:22:11,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:11,755 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:11,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:11,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1154700410, now seen corresponding path program 1 times [2022-01-10 06:22:11,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:11,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [938292153] [2022-01-10 06:22:11,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:11,757 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:11,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:11,771 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:11,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-01-10 06:22:11,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:11,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 06:22:11,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:12,159 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-01-10 06:22:12,160 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:12,160 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:12,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [938292153] [2022-01-10 06:22:12,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [938292153] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:12,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:12,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:22:12,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517582044] [2022-01-10 06:22:12,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:12,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:22:12,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:12,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:22:12,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:22:12,163 INFO L87 Difference]: Start difference. First operand 405 states and 612 transitions. Second operand has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-01-10 06:22:12,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:12,215 INFO L93 Difference]: Finished difference Result 787 states and 1192 transitions. [2022-01-10 06:22:12,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:22:12,216 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 113 [2022-01-10 06:22:12,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:12,218 INFO L225 Difference]: With dead ends: 787 [2022-01-10 06:22:12,218 INFO L226 Difference]: Without dead ends: 405 [2022-01-10 06:22:12,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:22:12,224 INFO L933 BasicCegarLoop]: 595 mSDtfsCounter, 142 mSDsluCounter, 1622 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 2217 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:12,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 2217 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:12,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-01-10 06:22:12,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2022-01-10 06:22:12,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 311 states have (on average 1.5466237942122187) internal successors, (481), 317 states have internal predecessors, (481), 63 states have call successors, (63), 28 states have call predecessors, (63), 30 states have return successors, (67), 61 states have call predecessors, (67), 62 states have call successors, (67) [2022-01-10 06:22:12,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 611 transitions. [2022-01-10 06:22:12,244 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 611 transitions. Word has length 113 [2022-01-10 06:22:12,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:12,245 INFO L470 AbstractCegarLoop]: Abstraction has 405 states and 611 transitions. [2022-01-10 06:22:12,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-01-10 06:22:12,245 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 611 transitions. [2022-01-10 06:22:12,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 06:22:12,247 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:12,248 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:22:12,257 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-01-10 06:22:12,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:12,457 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:12,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:12,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1659483956, now seen corresponding path program 2 times [2022-01-10 06:22:12,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:12,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [251434319] [2022-01-10 06:22:12,459 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-10 06:22:12,459 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:12,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:12,460 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:12,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-01-10 06:22:12,618 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-10 06:22:12,618 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 06:22:12,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:22:12,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:12,770 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-01-10 06:22:12,771 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:12,771 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:12,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [251434319] [2022-01-10 06:22:12,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [251434319] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:12,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:12,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:22:12,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875244686] [2022-01-10 06:22:12,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:12,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:22:12,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:12,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:22:12,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:12,773 INFO L87 Difference]: Start difference. First operand 405 states and 611 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:12,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:12,789 INFO L93 Difference]: Finished difference Result 622 states and 915 transitions. [2022-01-10 06:22:12,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:22:12,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2022-01-10 06:22:12,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:12,791 INFO L225 Difference]: With dead ends: 622 [2022-01-10 06:22:12,791 INFO L226 Difference]: Without dead ends: 408 [2022-01-10 06:22:12,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:12,792 INFO L933 BasicCegarLoop]: 602 mSDtfsCounter, 1 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1202 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:12,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1202 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:12,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2022-01-10 06:22:12,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 407. [2022-01-10 06:22:12,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 313 states have (on average 1.5431309904153354) internal successors, (483), 319 states have internal predecessors, (483), 63 states have call successors, (63), 28 states have call predecessors, (63), 30 states have return successors, (67), 61 states have call predecessors, (67), 62 states have call successors, (67) [2022-01-10 06:22:12,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 613 transitions. [2022-01-10 06:22:12,808 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 613 transitions. Word has length 114 [2022-01-10 06:22:12,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:12,809 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 613 transitions. [2022-01-10 06:22:12,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:12,809 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 613 transitions. [2022-01-10 06:22:12,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-01-10 06:22:12,812 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:12,812 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:22:12,835 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-01-10 06:22:13,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:13,036 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:13,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:13,036 INFO L85 PathProgramCache]: Analyzing trace with hash 85402307, now seen corresponding path program 1 times [2022-01-10 06:22:13,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:13,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520006613] [2022-01-10 06:22:13,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:13,037 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:13,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:13,038 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:13,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-01-10 06:22:13,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:13,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 06:22:13,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:13,449 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-01-10 06:22:13,449 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:13,449 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:13,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [520006613] [2022-01-10 06:22:13,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [520006613] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:13,449 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:13,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:22:13,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982920162] [2022-01-10 06:22:13,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:13,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:22:13,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:13,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:22:13,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:22:13,451 INFO L87 Difference]: Start difference. First operand 407 states and 613 transitions. Second operand has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-01-10 06:22:13,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:13,519 INFO L93 Difference]: Finished difference Result 793 states and 1199 transitions. [2022-01-10 06:22:13,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:22:13,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 120 [2022-01-10 06:22:13,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:13,522 INFO L225 Difference]: With dead ends: 793 [2022-01-10 06:22:13,522 INFO L226 Difference]: Without dead ends: 409 [2022-01-10 06:22:13,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:22:13,523 INFO L933 BasicCegarLoop]: 596 mSDtfsCounter, 140 mSDsluCounter, 1623 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 2219 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:13,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 2219 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:13,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2022-01-10 06:22:13,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2022-01-10 06:22:13,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 314 states have (on average 1.5414012738853504) internal successors, (484), 321 states have internal predecessors, (484), 63 states have call successors, (63), 28 states have call predecessors, (63), 31 states have return successors, (69), 61 states have call predecessors, (69), 62 states have call successors, (69) [2022-01-10 06:22:13,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 616 transitions. [2022-01-10 06:22:13,533 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 616 transitions. Word has length 120 [2022-01-10 06:22:13,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:13,533 INFO L470 AbstractCegarLoop]: Abstraction has 409 states and 616 transitions. [2022-01-10 06:22:13,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-01-10 06:22:13,533 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 616 transitions. [2022-01-10 06:22:13,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 06:22:13,534 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:13,534 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:22:13,554 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 06:22:13,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:13,745 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:13,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:13,745 INFO L85 PathProgramCache]: Analyzing trace with hash -222081470, now seen corresponding path program 1 times [2022-01-10 06:22:13,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:13,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1700120514] [2022-01-10 06:22:13,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:13,746 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:13,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:13,749 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:13,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-01-10 06:22:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:13,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:22:13,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:14,097 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-01-10 06:22:14,097 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:14,097 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:14,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1700120514] [2022-01-10 06:22:14,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1700120514] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:14,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:14,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:22:14,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426074728] [2022-01-10 06:22:14,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:14,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:22:14,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:14,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:22:14,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:22:14,098 INFO L87 Difference]: Start difference. First operand 409 states and 616 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-01-10 06:22:14,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:14,170 INFO L93 Difference]: Finished difference Result 791 states and 1194 transitions. [2022-01-10 06:22:14,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:22:14,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 121 [2022-01-10 06:22:14,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:14,172 INFO L225 Difference]: With dead ends: 791 [2022-01-10 06:22:14,172 INFO L226 Difference]: Without dead ends: 409 [2022-01-10 06:22:14,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:22:14,174 INFO L933 BasicCegarLoop]: 593 mSDtfsCounter, 141 mSDsluCounter, 1613 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 2206 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:14,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 2206 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:14,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2022-01-10 06:22:14,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2022-01-10 06:22:14,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 314 states have (on average 1.5414012738853504) internal successors, (484), 321 states have internal predecessors, (484), 63 states have call successors, (63), 28 states have call predecessors, (63), 31 states have return successors, (68), 61 states have call predecessors, (68), 62 states have call successors, (68) [2022-01-10 06:22:14,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 615 transitions. [2022-01-10 06:22:14,184 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 615 transitions. Word has length 121 [2022-01-10 06:22:14,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:14,185 INFO L470 AbstractCegarLoop]: Abstraction has 409 states and 615 transitions. [2022-01-10 06:22:14,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-01-10 06:22:14,185 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 615 transitions. [2022-01-10 06:22:14,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-10 06:22:14,186 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:14,186 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:22:14,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-01-10 06:22:14,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:14,397 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:14,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:14,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1855075363, now seen corresponding path program 2 times [2022-01-10 06:22:14,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:14,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [957058466] [2022-01-10 06:22:14,398 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-10 06:22:14,398 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:14,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:14,399 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:14,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-01-10 06:22:14,604 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-10 06:22:14,605 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 06:22:14,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:22:14,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:14,779 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-01-10 06:22:14,780 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:14,780 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:14,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [957058466] [2022-01-10 06:22:14,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [957058466] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:14,780 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:14,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:22:14,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247381481] [2022-01-10 06:22:14,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:14,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:22:14,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:14,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:22:14,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:22:14,781 INFO L87 Difference]: Start difference. First operand 409 states and 615 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-01-10 06:22:14,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:14,843 INFO L93 Difference]: Finished difference Result 793 states and 1199 transitions. [2022-01-10 06:22:14,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:22:14,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 122 [2022-01-10 06:22:14,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:14,845 INFO L225 Difference]: With dead ends: 793 [2022-01-10 06:22:14,845 INFO L226 Difference]: Without dead ends: 411 [2022-01-10 06:22:14,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:22:14,847 INFO L933 BasicCegarLoop]: 594 mSDtfsCounter, 139 mSDsluCounter, 1614 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 2208 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:14,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 2208 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:14,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2022-01-10 06:22:14,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 411. [2022-01-10 06:22:14,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 315 states have (on average 1.5396825396825398) internal successors, (485), 323 states have internal predecessors, (485), 63 states have call successors, (63), 28 states have call predecessors, (63), 32 states have return successors, (72), 61 states have call predecessors, (72), 62 states have call successors, (72) [2022-01-10 06:22:14,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 620 transitions. [2022-01-10 06:22:14,856 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 620 transitions. Word has length 122 [2022-01-10 06:22:14,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:14,856 INFO L470 AbstractCegarLoop]: Abstraction has 411 states and 620 transitions. [2022-01-10 06:22:14,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-01-10 06:22:14,856 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 620 transitions. [2022-01-10 06:22:14,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-10 06:22:14,858 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:14,858 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:22:14,883 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-01-10 06:22:15,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:15,087 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:15,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:15,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1871940185, now seen corresponding path program 1 times [2022-01-10 06:22:15,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:15,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1452334790] [2022-01-10 06:22:15,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:15,088 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:15,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:15,095 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:15,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-01-10 06:22:15,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:15,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:22:15,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:15,492 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:22:15,492 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:15,492 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:15,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1452334790] [2022-01-10 06:22:15,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1452334790] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:15,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:15,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:22:15,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047242356] [2022-01-10 06:22:15,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:15,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:22:15,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:15,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:22:15,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:15,494 INFO L87 Difference]: Start difference. First operand 411 states and 620 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:15,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:15,530 INFO L93 Difference]: Finished difference Result 861 states and 1318 transitions. [2022-01-10 06:22:15,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:22:15,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 123 [2022-01-10 06:22:15,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:15,533 INFO L225 Difference]: With dead ends: 861 [2022-01-10 06:22:15,533 INFO L226 Difference]: Without dead ends: 481 [2022-01-10 06:22:15,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:15,535 INFO L933 BasicCegarLoop]: 624 mSDtfsCounter, 126 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1180 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:15,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 1180 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:15,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-01-10 06:22:15,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 473. [2022-01-10 06:22:15,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 363 states have (on average 1.559228650137741) internal successors, (566), 371 states have internal predecessors, (566), 77 states have call successors, (77), 28 states have call predecessors, (77), 32 states have return successors, (88), 75 states have call predecessors, (88), 76 states have call successors, (88) [2022-01-10 06:22:15,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 731 transitions. [2022-01-10 06:22:15,550 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 731 transitions. Word has length 123 [2022-01-10 06:22:15,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:15,550 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 731 transitions. [2022-01-10 06:22:15,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:15,551 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 731 transitions. [2022-01-10 06:22:15,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-10 06:22:15,552 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:15,552 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:22:15,577 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 06:22:15,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:15,762 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:15,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:15,763 INFO L85 PathProgramCache]: Analyzing trace with hash -80680299, now seen corresponding path program 1 times [2022-01-10 06:22:15,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:15,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1838591025] [2022-01-10 06:22:15,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:15,764 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:15,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:15,765 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:15,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-01-10 06:22:15,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:15,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 06:22:15,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:16,144 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:22:16,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:22:16,346 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:22:16,347 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:16,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1838591025] [2022-01-10 06:22:16,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1838591025] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:22:16,347 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:22:16,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-01-10 06:22:16,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809252586] [2022-01-10 06:22:16,347 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:22:16,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 06:22:16,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:16,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 06:22:16,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:22:16,348 INFO L87 Difference]: Start difference. First operand 473 states and 731 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-01-10 06:22:16,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:16,577 INFO L93 Difference]: Finished difference Result 1104 states and 1765 transitions. [2022-01-10 06:22:16,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 06:22:16,578 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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 124 [2022-01-10 06:22:16,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:16,582 INFO L225 Difference]: With dead ends: 1104 [2022-01-10 06:22:16,582 INFO L226 Difference]: Without dead ends: 890 [2022-01-10 06:22:16,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-01-10 06:22:16,584 INFO L933 BasicCegarLoop]: 679 mSDtfsCounter, 678 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 2193 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:16,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [714 Valid, 2193 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 06:22:16,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2022-01-10 06:22:16,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 866. [2022-01-10 06:22:16,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 677 states have (on average 1.6233382570162482) internal successors, (1099), 685 states have internal predecessors, (1099), 156 states have call successors, (156), 28 states have call predecessors, (156), 32 states have return successors, (177), 154 states have call predecessors, (177), 155 states have call successors, (177) [2022-01-10 06:22:16,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1432 transitions. [2022-01-10 06:22:16,615 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1432 transitions. Word has length 124 [2022-01-10 06:22:16,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:16,615 INFO L470 AbstractCegarLoop]: Abstraction has 866 states and 1432 transitions. [2022-01-10 06:22:16,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-01-10 06:22:16,616 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1432 transitions. [2022-01-10 06:22:16,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-10 06:22:16,619 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:16,619 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:22:16,643 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-01-10 06:22:16,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:16,830 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:16,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:16,830 INFO L85 PathProgramCache]: Analyzing trace with hash 2109445240, now seen corresponding path program 1 times [2022-01-10 06:22:16,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:16,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1119418110] [2022-01-10 06:22:16,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:16,831 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:16,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:16,832 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:16,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-01-10 06:22:17,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:17,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:22:17,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:17,179 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:22:17,179 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:17,179 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:17,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1119418110] [2022-01-10 06:22:17,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1119418110] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:17,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:17,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:22:17,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606653100] [2022-01-10 06:22:17,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:17,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:22:17,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:17,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:22:17,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:17,181 INFO L87 Difference]: Start difference. First operand 866 states and 1432 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:17,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:17,216 INFO L93 Difference]: Finished difference Result 2062 states and 3461 transitions. [2022-01-10 06:22:17,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:22:17,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2022-01-10 06:22:17,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:17,221 INFO L225 Difference]: With dead ends: 2062 [2022-01-10 06:22:17,221 INFO L226 Difference]: Without dead ends: 1264 [2022-01-10 06:22:17,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:17,224 INFO L933 BasicCegarLoop]: 636 mSDtfsCounter, 124 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:17,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 1240 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:17,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2022-01-10 06:22:17,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1256. [2022-01-10 06:22:17,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1256 states, 988 states have (on average 1.638663967611336) internal successors, (1619), 996 states have internal predecessors, (1619), 235 states have call successors, (235), 28 states have call predecessors, (235), 32 states have return successors, (266), 233 states have call predecessors, (266), 234 states have call successors, (266) [2022-01-10 06:22:17,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 2120 transitions. [2022-01-10 06:22:17,277 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 2120 transitions. Word has length 130 [2022-01-10 06:22:17,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:17,278 INFO L470 AbstractCegarLoop]: Abstraction has 1256 states and 2120 transitions. [2022-01-10 06:22:17,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:17,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 2120 transitions. [2022-01-10 06:22:17,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-01-10 06:22:17,282 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:17,282 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:22:17,294 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 06:22:17,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:17,488 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:17,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:17,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1357642265, now seen corresponding path program 1 times [2022-01-10 06:22:17,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:17,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1065224915] [2022-01-10 06:22:17,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:17,489 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:17,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:17,490 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:17,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-01-10 06:22:17,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:17,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:22:17,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:17,834 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:22:17,835 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:17,835 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:17,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1065224915] [2022-01-10 06:22:17,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1065224915] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:17,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:17,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:22:17,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122637912] [2022-01-10 06:22:17,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:17,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:22:17,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:17,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:22:17,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:17,836 INFO L87 Difference]: Start difference. First operand 1256 states and 2120 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:17,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:17,890 INFO L93 Difference]: Finished difference Result 3011 states and 5119 transitions. [2022-01-10 06:22:17,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:22:17,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 131 [2022-01-10 06:22:17,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:17,901 INFO L225 Difference]: With dead ends: 3011 [2022-01-10 06:22:17,902 INFO L226 Difference]: Without dead ends: 1876 [2022-01-10 06:22:17,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:17,907 INFO L933 BasicCegarLoop]: 628 mSDtfsCounter, 122 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:17,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 1226 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:17,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1876 states. [2022-01-10 06:22:17,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1876 to 1868. [2022-01-10 06:22:17,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1868 states, 1481 states have (on average 1.648885887913572) internal successors, (2442), 1489 states have internal predecessors, (2442), 354 states have call successors, (354), 28 states have call predecessors, (354), 32 states have return successors, (385), 352 states have call predecessors, (385), 353 states have call successors, (385) [2022-01-10 06:22:17,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1868 states to 1868 states and 3181 transitions. [2022-01-10 06:22:17,981 INFO L78 Accepts]: Start accepts. Automaton has 1868 states and 3181 transitions. Word has length 131 [2022-01-10 06:22:17,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:17,981 INFO L470 AbstractCegarLoop]: Abstraction has 1868 states and 3181 transitions. [2022-01-10 06:22:17,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:17,982 INFO L276 IsEmpty]: Start isEmpty. Operand 1868 states and 3181 transitions. [2022-01-10 06:22:17,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 06:22:17,990 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:17,990 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:22:18,000 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-01-10 06:22:18,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:18,200 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:18,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:18,200 INFO L85 PathProgramCache]: Analyzing trace with hash -489327690, now seen corresponding path program 1 times [2022-01-10 06:22:18,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:18,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1234641500] [2022-01-10 06:22:18,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:18,201 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:18,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:18,203 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:18,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-01-10 06:22:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:18,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:22:18,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:18,698 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:22:18,698 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:18,698 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:18,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1234641500] [2022-01-10 06:22:18,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1234641500] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:18,699 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:18,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:22:18,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792030740] [2022-01-10 06:22:18,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:18,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:22:18,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:18,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:22:18,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:18,701 INFO L87 Difference]: Start difference. First operand 1868 states and 3181 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:18,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:18,816 INFO L93 Difference]: Finished difference Result 4436 states and 7619 transitions. [2022-01-10 06:22:18,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:22:18,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2022-01-10 06:22:18,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:18,830 INFO L225 Difference]: With dead ends: 4436 [2022-01-10 06:22:18,830 INFO L226 Difference]: Without dead ends: 2814 [2022-01-10 06:22:18,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:18,837 INFO L933 BasicCegarLoop]: 618 mSDtfsCounter, 120 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:18,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 1212 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:18,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2814 states. [2022-01-10 06:22:18,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2814 to 2806. [2022-01-10 06:22:18,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2806 states, 2257 states have (on average 1.6570669029685423) internal successors, (3740), 2265 states have internal predecessors, (3740), 516 states have call successors, (516), 28 states have call predecessors, (516), 32 states have return successors, (563), 514 states have call predecessors, (563), 515 states have call successors, (563) [2022-01-10 06:22:18,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2806 states to 2806 states and 4819 transitions. [2022-01-10 06:22:18,942 INFO L78 Accepts]: Start accepts. Automaton has 2806 states and 4819 transitions. Word has length 132 [2022-01-10 06:22:18,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:18,942 INFO L470 AbstractCegarLoop]: Abstraction has 2806 states and 4819 transitions. [2022-01-10 06:22:18,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:18,942 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states and 4819 transitions. [2022-01-10 06:22:18,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-01-10 06:22:18,952 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:18,952 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:22:18,977 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 06:22:19,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:19,162 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:19,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:19,163 INFO L85 PathProgramCache]: Analyzing trace with hash 414249670, now seen corresponding path program 1 times [2022-01-10 06:22:19,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:19,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1302024295] [2022-01-10 06:22:19,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:19,163 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:19,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:19,164 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:19,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-01-10 06:22:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:19,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:22:19,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:19,547 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:22:19,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:19,547 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:19,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1302024295] [2022-01-10 06:22:19,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1302024295] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:19,547 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:19,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:22:19,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665480949] [2022-01-10 06:22:19,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:19,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:22:19,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:19,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:22:19,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:19,548 INFO L87 Difference]: Start difference. First operand 2806 states and 4819 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:19,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:19,680 INFO L93 Difference]: Finished difference Result 6685 states and 11571 transitions. [2022-01-10 06:22:19,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:22:19,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 133 [2022-01-10 06:22:19,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:19,697 INFO L225 Difference]: With dead ends: 6685 [2022-01-10 06:22:19,697 INFO L226 Difference]: Without dead ends: 4329 [2022-01-10 06:22:19,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:19,705 INFO L933 BasicCegarLoop]: 618 mSDtfsCounter, 118 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:19,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 1212 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:19,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4329 states. [2022-01-10 06:22:19,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4329 to 4321. [2022-01-10 06:22:19,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4321 states, 3527 states have (on average 1.6628863056421888) internal successors, (5865), 3535 states have internal predecessors, (5865), 761 states have call successors, (761), 28 states have call predecessors, (761), 32 states have return successors, (834), 759 states have call predecessors, (834), 760 states have call successors, (834) [2022-01-10 06:22:19,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4321 states to 4321 states and 7460 transitions. [2022-01-10 06:22:19,908 INFO L78 Accepts]: Start accepts. Automaton has 4321 states and 7460 transitions. Word has length 133 [2022-01-10 06:22:19,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:19,908 INFO L470 AbstractCegarLoop]: Abstraction has 4321 states and 7460 transitions. [2022-01-10 06:22:19,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:19,909 INFO L276 IsEmpty]: Start isEmpty. Operand 4321 states and 7460 transitions. [2022-01-10 06:22:19,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-10 06:22:19,921 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:19,921 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:22:19,932 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-01-10 06:22:20,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:20,131 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:20,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:20,131 INFO L85 PathProgramCache]: Analyzing trace with hash -708917478, now seen corresponding path program 1 times [2022-01-10 06:22:20,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:20,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136367334] [2022-01-10 06:22:20,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:20,132 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:20,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:20,133 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:20,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-01-10 06:22:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:20,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:22:20,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:20,522 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:22:20,523 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:20,523 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:20,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [136367334] [2022-01-10 06:22:20,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [136367334] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:20,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:20,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:22:20,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100008864] [2022-01-10 06:22:20,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:20,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:22:20,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:20,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:22:20,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:20,524 INFO L87 Difference]: Start difference. First operand 4321 states and 7460 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:20,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:20,664 INFO L93 Difference]: Finished difference Result 10701 states and 18583 transitions. [2022-01-10 06:22:20,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:22:20,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 134 [2022-01-10 06:22:20,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:20,700 INFO L225 Difference]: With dead ends: 10701 [2022-01-10 06:22:20,701 INFO L226 Difference]: Without dead ends: 7062 [2022-01-10 06:22:20,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:20,719 INFO L933 BasicCegarLoop]: 624 mSDtfsCounter, 116 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:20,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 1223 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:20,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7062 states. [2022-01-10 06:22:21,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7062 to 7054. [2022-01-10 06:22:21,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7054 states, 5767 states have (on average 1.6594416507716316) internal successors, (9570), 5775 states have internal predecessors, (9570), 1254 states have call successors, (1254), 28 states have call predecessors, (1254), 32 states have return successors, (1371), 1252 states have call predecessors, (1371), 1253 states have call successors, (1371) [2022-01-10 06:22:21,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7054 states to 7054 states and 12195 transitions. [2022-01-10 06:22:21,112 INFO L78 Accepts]: Start accepts. Automaton has 7054 states and 12195 transitions. Word has length 134 [2022-01-10 06:22:21,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:21,112 INFO L470 AbstractCegarLoop]: Abstraction has 7054 states and 12195 transitions. [2022-01-10 06:22:21,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:21,113 INFO L276 IsEmpty]: Start isEmpty. Operand 7054 states and 12195 transitions. [2022-01-10 06:22:21,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-10 06:22:21,171 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:21,171 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:22:21,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-01-10 06:22:21,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:21,372 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:21,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:21,372 INFO L85 PathProgramCache]: Analyzing trace with hash 386682722, now seen corresponding path program 1 times [2022-01-10 06:22:21,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:21,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1504764602] [2022-01-10 06:22:21,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:21,373 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:21,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:21,374 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:21,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-01-10 06:22:21,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:21,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:22:21,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:21,760 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:22:21,760 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:21,760 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:21,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1504764602] [2022-01-10 06:22:21,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1504764602] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:21,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:21,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:22:21,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452623635] [2022-01-10 06:22:21,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:21,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:22:21,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:21,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:22:21,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:21,762 INFO L87 Difference]: Start difference. First operand 7054 states and 12195 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:22,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:22,053 INFO L93 Difference]: Finished difference Result 17841 states and 31044 transitions. [2022-01-10 06:22:22,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:22:22,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 135 [2022-01-10 06:22:22,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:22,107 INFO L225 Difference]: With dead ends: 17841 [2022-01-10 06:22:22,107 INFO L226 Difference]: Without dead ends: 11846 [2022-01-10 06:22:22,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:22,124 INFO L933 BasicCegarLoop]: 621 mSDtfsCounter, 114 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:22,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 1218 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:22,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11846 states. [2022-01-10 06:22:22,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11846 to 11838. [2022-01-10 06:22:22,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11838 states, 9729 states have (on average 1.659780039058485) internal successors, (16148), 9737 states have internal predecessors, (16148), 2076 states have call successors, (2076), 28 states have call predecessors, (2076), 32 states have return successors, (2271), 2074 states have call predecessors, (2271), 2075 states have call successors, (2271) [2022-01-10 06:22:22,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11838 states to 11838 states and 20495 transitions. [2022-01-10 06:22:22,595 INFO L78 Accepts]: Start accepts. Automaton has 11838 states and 20495 transitions. Word has length 135 [2022-01-10 06:22:22,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:22,596 INFO L470 AbstractCegarLoop]: Abstraction has 11838 states and 20495 transitions. [2022-01-10 06:22:22,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:22,596 INFO L276 IsEmpty]: Start isEmpty. Operand 11838 states and 20495 transitions. [2022-01-10 06:22:22,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-01-10 06:22:22,619 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:22,619 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:22:22,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-01-10 06:22:22,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:22:22,831 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:22,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:22,832 INFO L85 PathProgramCache]: Analyzing trace with hash 509010040, now seen corresponding path program 1 times [2022-01-10 06:22:22,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:22,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [246398459] [2022-01-10 06:22:22,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:22,832 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:22,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:22,833 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:22:22,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-01-10 06:22:23,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:23,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:22:23,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:23,196 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:22:23,196 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:23,196 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:23,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [246398459] [2022-01-10 06:22:23,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [246398459] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:23,197 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:23,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:22:23,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953759989] [2022-01-10 06:22:23,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:23,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:22:23,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:23,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:22:23,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:23,198 INFO L87 Difference]: Start difference. First operand 11838 states and 20495 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:23,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:23,699 INFO L93 Difference]: Finished difference Result 28274 states and 48888 transitions. [2022-01-10 06:22:23,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:22:23,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 136 [2022-01-10 06:22:23,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:23,757 INFO L225 Difference]: With dead ends: 28274 [2022-01-10 06:22:23,758 INFO L226 Difference]: Without dead ends: 18439 [2022-01-10 06:22:23,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:23,786 INFO L933 BasicCegarLoop]: 624 mSDtfsCounter, 112 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:23,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 1194 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:23,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18439 states. [2022-01-10 06:22:24,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18439 to 18431. [2022-01-10 06:22:24,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18431 states, 15119 states have (on average 1.6346319201005357) internal successors, (24714), 15127 states have internal predecessors, (24714), 3279 states have call successors, (3279), 28 states have call predecessors, (3279), 32 states have return successors, (3618), 3277 states have call predecessors, (3618), 3278 states have call successors, (3618) [2022-01-10 06:22:24,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18431 states to 18431 states and 31611 transitions. [2022-01-10 06:22:24,636 INFO L78 Accepts]: Start accepts. Automaton has 18431 states and 31611 transitions. Word has length 136 [2022-01-10 06:22:24,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:24,636 INFO L470 AbstractCegarLoop]: Abstraction has 18431 states and 31611 transitions. [2022-01-10 06:22:24,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:24,637 INFO L276 IsEmpty]: Start isEmpty. Operand 18431 states and 31611 transitions. [2022-01-10 06:22:24,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-10 06:22:24,664 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:24,664 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:22:24,673 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2022-01-10 06:22:24,873 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 06:22:24,874 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:24,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:24,874 INFO L85 PathProgramCache]: Analyzing trace with hash 623180961, now seen corresponding path program 1 times [2022-01-10 06:22:24,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:24,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [444251265] [2022-01-10 06:22:24,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:24,876 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:24,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:24,900 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 06:22:24,913 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 06:22:25,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:25,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:22:25,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:25,310 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:22:25,310 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:25,311 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:25,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [444251265] [2022-01-10 06:22:25,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [444251265] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:25,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:25,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:22:25,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892023132] [2022-01-10 06:22:25,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:25,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:22:25,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:25,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:22:25,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:25,312 INFO L87 Difference]: Start difference. First operand 18431 states and 31611 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:26,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:26,324 INFO L93 Difference]: Finished difference Result 48696 states and 83852 transitions. [2022-01-10 06:22:26,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:22:26,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 137 [2022-01-10 06:22:26,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:26,449 INFO L225 Difference]: With dead ends: 48696 [2022-01-10 06:22:26,449 INFO L226 Difference]: Without dead ends: 32875 [2022-01-10 06:22:26,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:26,487 INFO L933 BasicCegarLoop]: 620 mSDtfsCounter, 110 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:26,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 1217 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:26,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32875 states. [2022-01-10 06:22:27,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32875 to 32867. [2022-01-10 06:22:27,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32867 states, 27105 states have (on average 1.6314702084486257) internal successors, (44221), 27113 states have internal predecessors, (44221), 5729 states have call successors, (5729), 28 states have call predecessors, (5729), 32 states have return successors, (6342), 5727 states have call predecessors, (6342), 5728 states have call successors, (6342) [2022-01-10 06:22:27,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32867 states to 32867 states and 56292 transitions. [2022-01-10 06:22:27,992 INFO L78 Accepts]: Start accepts. Automaton has 32867 states and 56292 transitions. Word has length 137 [2022-01-10 06:22:27,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:27,992 INFO L470 AbstractCegarLoop]: Abstraction has 32867 states and 56292 transitions. [2022-01-10 06:22:27,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:27,992 INFO L276 IsEmpty]: Start isEmpty. Operand 32867 states and 56292 transitions. [2022-01-10 06:22:28,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-01-10 06:22:28,034 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:28,034 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:22:28,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-01-10 06:22:28,247 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 06:22:28,247 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:28,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:28,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1343201346, now seen corresponding path program 1 times [2022-01-10 06:22:28,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:28,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [937121418] [2022-01-10 06:22:28,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:28,248 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:28,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:28,249 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 06:22:28,303 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 06:22:28,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:28,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:22:28,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:28,616 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:22:28,617 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:28,617 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:28,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [937121418] [2022-01-10 06:22:28,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [937121418] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:28,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:28,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:22:28,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16689077] [2022-01-10 06:22:28,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:28,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:22:28,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:28,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:22:28,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:28,618 INFO L87 Difference]: Start difference. First operand 32867 states and 56292 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:30,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:30,390 INFO L93 Difference]: Finished difference Result 89593 states and 153954 transitions. [2022-01-10 06:22:30,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:22:30,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 138 [2022-01-10 06:22:30,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:30,639 INFO L225 Difference]: With dead ends: 89593 [2022-01-10 06:22:30,639 INFO L226 Difference]: Without dead ends: 60212 [2022-01-10 06:22:30,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:30,712 INFO L933 BasicCegarLoop]: 627 mSDtfsCounter, 108 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 1225 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:30,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 1225 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:30,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60212 states. [2022-01-10 06:22:33,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60212 to 60204. [2022-01-10 06:22:33,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60204 states, 49929 states have (on average 1.6271906106671474) internal successors, (81244), 49937 states have internal predecessors, (81244), 10242 states have call successors, (10242), 28 states have call predecessors, (10242), 32 states have return successors, (11387), 10240 states have call predecessors, (11387), 10241 states have call successors, (11387) [2022-01-10 06:22:33,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60204 states to 60204 states and 102873 transitions. [2022-01-10 06:22:33,566 INFO L78 Accepts]: Start accepts. Automaton has 60204 states and 102873 transitions. Word has length 138 [2022-01-10 06:22:33,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:33,566 INFO L470 AbstractCegarLoop]: Abstraction has 60204 states and 102873 transitions. [2022-01-10 06:22:33,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:33,567 INFO L276 IsEmpty]: Start isEmpty. Operand 60204 states and 102873 transitions. [2022-01-10 06:22:33,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-01-10 06:22:33,608 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:33,608 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:22:33,633 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-01-10 06:22:33,817 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 06:22:33,818 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:33,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:33,818 INFO L85 PathProgramCache]: Analyzing trace with hash 2068192737, now seen corresponding path program 1 times [2022-01-10 06:22:33,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:33,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [89416005] [2022-01-10 06:22:33,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:33,819 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:33,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:33,837 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 06:22:33,838 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 06:22:34,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:34,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:22:34,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:34,189 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 06:22:34,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:22:34,189 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:34,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [89416005] [2022-01-10 06:22:34,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [89416005] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:22:34,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:22:34,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:22:34,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617614664] [2022-01-10 06:22:34,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:22:34,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:22:34,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:34,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:22:34,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:34,191 INFO L87 Difference]: Start difference. First operand 60204 states and 102873 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:37,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:37,217 INFO L93 Difference]: Finished difference Result 112684 states and 192963 transitions. [2022-01-10 06:22:37,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:22:37,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 139 [2022-01-10 06:22:37,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:37,698 INFO L225 Difference]: With dead ends: 112684 [2022-01-10 06:22:37,699 INFO L226 Difference]: Without dead ends: 112470 [2022-01-10 06:22:37,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:22:37,753 INFO L933 BasicCegarLoop]: 620 mSDtfsCounter, 106 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:37,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 1217 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:22:37,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112470 states. [2022-01-10 06:22:42,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112470 to 112462. [2022-01-10 06:22:42,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112462 states, 93819 states have (on average 1.6217503917117002) internal successors, (152151), 93827 states have internal predecessors, (152151), 18610 states have call successors, (18610), 28 states have call predecessors, (18610), 32 states have return successors, (20801), 18608 states have call predecessors, (20801), 18609 states have call successors, (20801) [2022-01-10 06:22:42,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112462 states to 112462 states and 191562 transitions. [2022-01-10 06:22:42,922 INFO L78 Accepts]: Start accepts. Automaton has 112462 states and 191562 transitions. Word has length 139 [2022-01-10 06:22:42,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:22:42,922 INFO L470 AbstractCegarLoop]: Abstraction has 112462 states and 191562 transitions. [2022-01-10 06:22:42,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-01-10 06:22:42,922 INFO L276 IsEmpty]: Start isEmpty. Operand 112462 states and 191562 transitions. [2022-01-10 06:22:42,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-01-10 06:22:42,975 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:22:42,975 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:22:42,990 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 06:22:43,188 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 06:22:43,188 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:22:43,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:22:43,189 INFO L85 PathProgramCache]: Analyzing trace with hash 753320447, now seen corresponding path program 1 times [2022-01-10 06:22:43,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:22:43,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1927536106] [2022-01-10 06:22:43,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:22:43,189 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:22:43,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:22:43,190 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 06:22:43,191 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 06:22:43,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:22:43,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-10 06:22:43,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:22:43,673 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-10 06:22:43,674 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:22:44,077 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-01-10 06:22:44,077 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:22:44,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1927536106] [2022-01-10 06:22:44,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1927536106] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:22:44,077 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:22:44,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-01-10 06:22:44,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736549990] [2022-01-10 06:22:44,078 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:22:44,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-10 06:22:44,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:22:44,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-10 06:22:44,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-01-10 06:22:44,079 INFO L87 Difference]: Start difference. First operand 112462 states and 191562 transitions. Second operand has 16 states, 16 states have (on average 11.0) internal successors, (176), 14 states have internal predecessors, (176), 4 states have call successors, (31), 6 states have call predecessors, (31), 9 states have return successors, (27), 6 states have call predecessors, (27), 4 states have call successors, (27) [2022-01-10 06:22:56,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:22:56,916 INFO L93 Difference]: Finished difference Result 331334 states and 571072 transitions. [2022-01-10 06:22:56,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-10 06:22:56,916 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 11.0) internal successors, (176), 14 states have internal predecessors, (176), 4 states have call successors, (31), 6 states have call predecessors, (31), 9 states have return successors, (27), 6 states have call predecessors, (27), 4 states have call successors, (27) Word has length 140 [2022-01-10 06:22:56,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:22:59,212 INFO L225 Difference]: With dead ends: 331334 [2022-01-10 06:22:59,212 INFO L226 Difference]: Without dead ends: 331126 [2022-01-10 06:22:59,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=657, Unknown=0, NotChecked=0, Total=812 [2022-01-10 06:22:59,379 INFO L933 BasicCegarLoop]: 763 mSDtfsCounter, 1418 mSDsluCounter, 2777 mSDsCounter, 0 mSdLazyCounter, 5685 mSolverCounterSat, 375 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 3540 SdHoareTripleChecker+Invalid, 6060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 375 IncrementalHoareTripleChecker+Valid, 5685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-01-10 06:22:59,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1490 Valid, 3540 Invalid, 6060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [375 Valid, 5685 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-01-10 06:22:59,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331126 states. [2022-01-10 06:23:12,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331126 to 224921.