./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec4_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec4_product29.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 71f8755187e6ba7ba58a893461c08a19c806970ccaa90de1a74095d8e9221b58 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 00:52:09,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 00:52:09,324 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 00:52:09,380 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 00:52:09,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 00:52:09,383 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 00:52:09,384 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 00:52:09,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 00:52:09,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 00:52:09,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 00:52:09,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 00:52:09,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 00:52:09,394 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 00:52:09,395 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 00:52:09,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 00:52:09,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 00:52:09,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 00:52:09,402 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 00:52:09,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 00:52:09,404 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 00:52:09,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 00:52:09,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 00:52:09,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 00:52:09,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 00:52:09,408 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 00:52:09,409 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 00:52:09,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 00:52:09,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 00:52:09,410 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 00:52:09,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 00:52:09,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 00:52:09,411 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 00:52:09,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 00:52:09,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 00:52:09,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 00:52:09,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 00:52:09,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 00:52:09,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 00:52:09,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 00:52:09,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 00:52:09,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 00:52:09,415 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 00:52:09,433 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 00:52:09,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 00:52:09,434 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 00:52:09,434 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 00:52:09,435 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 00:52:09,435 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 00:52:09,435 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 00:52:09,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 00:52:09,436 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 00:52:09,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 00:52:09,437 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 00:52:09,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 00:52:09,437 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 00:52:09,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 00:52:09,437 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 00:52:09,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 00:52:09,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 00:52:09,438 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 00:52:09,438 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 00:52:09,438 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 00:52:09,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 00:52:09,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 00:52:09,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 00:52:09,439 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 00:52:09,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 00:52:09,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 00:52:09,439 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 00:52:09,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 00:52:09,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 00:52:09,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 00:52:09,440 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 00:52:09,440 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 00:52:09,440 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 00:52:09,440 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 00:52:09,441 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71f8755187e6ba7ba58a893461c08a19c806970ccaa90de1a74095d8e9221b58 [2021-12-16 00:52:09,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 00:52:09,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 00:52:09,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 00:52:09,612 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 00:52:09,612 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 00:52:09,613 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec4_product29.cil.c [2021-12-16 00:52:09,650 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95f634797/28918d25709c41e49f18ab7ab543ba41/FLAGf1fad9d6f [2021-12-16 00:52:10,093 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 00:52:10,093 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec4_product29.cil.c [2021-12-16 00:52:10,107 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95f634797/28918d25709c41e49f18ab7ab543ba41/FLAGf1fad9d6f [2021-12-16 00:52:10,425 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95f634797/28918d25709c41e49f18ab7ab543ba41 [2021-12-16 00:52:10,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 00:52:10,428 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 00:52:10,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 00:52:10,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 00:52:10,431 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 00:52:10,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:52:10" (1/1) ... [2021-12-16 00:52:10,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45db2592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:52:10, skipping insertion in model container [2021-12-16 00:52:10,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:52:10" (1/1) ... [2021-12-16 00:52:10,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 00:52:10,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 00:52:10,865 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec4_product29.cil.c[58438,58451] [2021-12-16 00:52:10,886 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 00:52:10,893 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 00:52:10,960 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec4_product29.cil.c[58438,58451] [2021-12-16 00:52:10,966 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 00:52:10,989 INFO L208 MainTranslator]: Completed translation [2021-12-16 00:52:10,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:52:10 WrapperNode [2021-12-16 00:52:10,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 00:52:10,991 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 00:52:10,991 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 00:52:10,991 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 00:52:10,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:52:10" (1/1) ... [2021-12-16 00:52:11,012 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:52:10" (1/1) ... [2021-12-16 00:52:11,041 INFO L137 Inliner]: procedures = 131, calls = 227, calls flagged for inlining = 55, calls inlined = 47, statements flattened = 925 [2021-12-16 00:52:11,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 00:52:11,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 00:52:11,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 00:52:11,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 00:52:11,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:52:10" (1/1) ... [2021-12-16 00:52:11,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:52:10" (1/1) ... [2021-12-16 00:52:11,052 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:52:10" (1/1) ... [2021-12-16 00:52:11,052 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:52:10" (1/1) ... [2021-12-16 00:52:11,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:52:10" (1/1) ... [2021-12-16 00:52:11,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:52:10" (1/1) ... [2021-12-16 00:52:11,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:52:10" (1/1) ... [2021-12-16 00:52:11,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 00:52:11,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 00:52:11,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 00:52:11,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 00:52:11,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:52:10" (1/1) ... [2021-12-16 00:52:11,093 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 00:52:11,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:52:11,124 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-16 00:52:11,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-16 00:52:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-12-16 00:52:11,157 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-12-16 00:52:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-16 00:52:11,157 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-16 00:52:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-12-16 00:52:11,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-12-16 00:52:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-16 00:52:11,158 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-16 00:52:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-12-16 00:52:11,158 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-12-16 00:52:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-16 00:52:11,158 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-16 00:52:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-16 00:52:11,158 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-16 00:52:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-12-16 00:52:11,159 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-12-16 00:52:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-16 00:52:11,159 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-16 00:52:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-12-16 00:52:11,159 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-12-16 00:52:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-12-16 00:52:11,159 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-12-16 00:52:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-16 00:52:11,160 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-16 00:52:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-16 00:52:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-12-16 00:52:11,160 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-12-16 00:52:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-16 00:52:11,160 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-16 00:52:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 00:52:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-12-16 00:52:11,161 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-12-16 00:52:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2021-12-16 00:52:11,161 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2021-12-16 00:52:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-16 00:52:11,161 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-16 00:52:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-16 00:52:11,162 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-16 00:52:11,162 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-16 00:52:11,162 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-16 00:52:11,162 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-16 00:52:11,162 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-16 00:52:11,162 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2021-12-16 00:52:11,162 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2021-12-16 00:52:11,162 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2021-12-16 00:52:11,163 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2021-12-16 00:52:11,163 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-16 00:52:11,163 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-16 00:52:11,163 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-12-16 00:52:11,163 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-12-16 00:52:11,163 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-16 00:52:11,163 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-16 00:52:11,164 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-16 00:52:11,164 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-16 00:52:11,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 00:52:11,164 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-16 00:52:11,164 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-16 00:52:11,164 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-16 00:52:11,164 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-16 00:52:11,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 00:52:11,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 00:52:11,302 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 00:52:11,362 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 00:52:11,802 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 00:52:11,815 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 00:52:11,815 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-16 00:52:11,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:52:11 BoogieIcfgContainer [2021-12-16 00:52:11,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 00:52:11,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 00:52:11,819 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 00:52:11,821 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 00:52:11,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:52:10" (1/3) ... [2021-12-16 00:52:11,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43157b2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:52:11, skipping insertion in model container [2021-12-16 00:52:11,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:52:10" (2/3) ... [2021-12-16 00:52:11,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43157b2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:52:11, skipping insertion in model container [2021-12-16 00:52:11,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:52:11" (3/3) ... [2021-12-16 00:52:11,825 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec4_product29.cil.c [2021-12-16 00:52:11,830 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 00:52:11,830 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 00:52:11,869 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 00:52:11,875 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-16 00:52:11,876 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 00:52:11,906 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) [2021-12-16 00:52:11,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-16 00:52:11,920 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:11,920 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:52:11,921 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:11,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:11,926 INFO L85 PathProgramCache]: Analyzing trace with hash 583712105, now seen corresponding path program 1 times [2021-12-16 00:52:11,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:11,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034811417] [2021-12-16 00:52:11,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:11,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:12,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:12,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:12,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:12,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:12,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:12,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:12,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:12,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-16 00:52:12,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:12,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-16 00:52:12,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:12,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 00:52:12,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:12,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 00:52:12,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:12,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-16 00:52:12,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:12,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 00:52:12,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:12,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 00:52:12,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:12,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 00:52:12,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:12,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-16 00:52:12,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:12,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-16 00:52:12,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:12,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-16 00:52:12,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:12,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-16 00:52:12,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:12,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-16 00:52:12,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:12,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-16 00:52:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:12,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 00:52:12,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:12,321 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-16 00:52:12,321 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:12,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034811417] [2021-12-16 00:52:12,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034811417] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 00:52:12,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930973613] [2021-12-16 00:52:12,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:12,323 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:52:12,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:52:12,325 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 00:52:12,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-16 00:52:12,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:12,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 1186 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-16 00:52:12,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 00:52:12,902 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-16 00:52:12,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 00:52:12,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930973613] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:12,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 00:52:12,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-12-16 00:52:12,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42806540] [2021-12-16 00:52:12,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:12,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-16 00:52:12,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:12,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-16 00:52:12,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 00:52:12,927 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 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 00:52:12,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:12,966 INFO L93 Difference]: Finished difference Result 628 states and 930 transitions. [2021-12-16 00:52:12,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-16 00:52:12,968 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 135 [2021-12-16 00:52:12,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:12,978 INFO L225 Difference]: With dead ends: 628 [2021-12-16 00:52:12,978 INFO L226 Difference]: Without dead ends: 401 [2021-12-16 00:52:12,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 00:52:12,986 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 [2021-12-16 00:52:12,986 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] [2021-12-16 00:52:13,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2021-12-16 00:52:13,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2021-12-16 00:52:13,052 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) [2021-12-16 00:52:13,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 604 transitions. [2021-12-16 00:52:13,056 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 604 transitions. Word has length 135 [2021-12-16 00:52:13,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:13,058 INFO L470 AbstractCegarLoop]: Abstraction has 401 states and 604 transitions. [2021-12-16 00:52:13,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 00:52:13,058 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 604 transitions. [2021-12-16 00:52:13,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-16 00:52:13,061 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:13,062 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:52:13,107 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-16 00:52:13,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-12-16 00:52:13,281 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:13,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:13,282 INFO L85 PathProgramCache]: Analyzing trace with hash 217349059, now seen corresponding path program 1 times [2021-12-16 00:52:13,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:13,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761290506] [2021-12-16 00:52:13,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:13,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:13,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:13,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:13,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:13,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:13,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:13,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:13,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:13,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-16 00:52:13,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:13,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-16 00:52:13,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:13,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 00:52:13,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:13,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-16 00:52:13,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:13,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-16 00:52:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:13,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 00:52:13,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:13,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-16 00:52:13,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:13,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-16 00:52:13,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:13,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-16 00:52:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:13,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-16 00:52:13,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:13,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 00:52:13,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:13,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-16 00:52:13,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:13,400 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-16 00:52:13,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:13,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761290506] [2021-12-16 00:52:13,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761290506] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 00:52:13,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207731183] [2021-12-16 00:52:13,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:13,402 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:52:13,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:52:13,403 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 00:52:13,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-16 00:52:13,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:13,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 1106 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 00:52:13,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 00:52:13,748 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-16 00:52:13,748 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 00:52:13,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207731183] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:13,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 00:52:13,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-16 00:52:13,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993835395] [2021-12-16 00:52:13,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:13,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 00:52:13,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:13,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 00:52:13,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-16 00:52:13,751 INFO L87 Difference]: Start difference. First operand 401 states and 604 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-16 00:52:13,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:13,776 INFO L93 Difference]: Finished difference Result 618 states and 908 transitions. [2021-12-16 00:52:13,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 00:52:13,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 117 [2021-12-16 00:52:13,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:13,780 INFO L225 Difference]: With dead ends: 618 [2021-12-16 00:52:13,780 INFO L226 Difference]: Without dead ends: 404 [2021-12-16 00:52:13,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-16 00:52:13,781 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 [2021-12-16 00:52:13,782 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] [2021-12-16 00:52:13,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2021-12-16 00:52:13,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 403. [2021-12-16 00:52:13,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 311 states have (on average 1.5466237942122187) internal successors, (481), 315 states have internal predecessors, (481), 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) [2021-12-16 00:52:13,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 606 transitions. [2021-12-16 00:52:13,802 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 606 transitions. Word has length 117 [2021-12-16 00:52:13,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:13,802 INFO L470 AbstractCegarLoop]: Abstraction has 403 states and 606 transitions. [2021-12-16 00:52:13,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-16 00:52:13,803 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 606 transitions. [2021-12-16 00:52:13,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-12-16 00:52:13,805 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:13,805 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:52:13,840 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-16 00:52:14,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-12-16 00:52:14,044 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:14,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:14,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1999437049, now seen corresponding path program 1 times [2021-12-16 00:52:14,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:14,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017668468] [2021-12-16 00:52:14,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:14,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:14,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:14,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:14,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:14,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-16 00:52:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-16 00:52:14,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 00:52:14,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-16 00:52:14,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-16 00:52:14,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 00:52:14,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-16 00:52:14,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-16 00:52:14,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-16 00:52:14,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-16 00:52:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 00:52:14,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-16 00:52:14,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-16 00:52:14,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 00:52:14,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 00:52:14,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,211 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-12-16 00:52:14,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:14,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017668468] [2021-12-16 00:52:14,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017668468] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 00:52:14,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909606718] [2021-12-16 00:52:14,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:14,213 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:52:14,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:52:14,214 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 00:52:14,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-16 00:52:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 1201 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-16 00:52:14,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 00:52:14,601 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-16 00:52:14,601 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 00:52:14,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909606718] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:14,602 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 00:52:14,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-16 00:52:14,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683073458] [2021-12-16 00:52:14,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:14,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 00:52:14,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:14,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 00:52:14,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-16 00:52:14,604 INFO L87 Difference]: Start difference. First operand 403 states and 606 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, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 00:52:14,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:14,624 INFO L93 Difference]: Finished difference Result 849 states and 1296 transitions. [2021-12-16 00:52:14,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 00:52:14,624 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, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 142 [2021-12-16 00:52:14,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:14,627 INFO L225 Difference]: With dead ends: 849 [2021-12-16 00:52:14,627 INFO L226 Difference]: Without dead ends: 473 [2021-12-16 00:52:14,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-16 00:52:14,629 INFO L933 BasicCegarLoop]: 627 mSDtfsCounter, 126 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 00:52:14,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 1185 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 00:52:14,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2021-12-16 00:52:14,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 465. [2021-12-16 00:52:14,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 359 states have (on average 1.565459610027855) internal successors, (562), 363 states have internal predecessors, (562), 77 states have call successors, (77), 28 states have call predecessors, (77), 28 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2021-12-16 00:52:14,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 715 transitions. [2021-12-16 00:52:14,646 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 715 transitions. Word has length 142 [2021-12-16 00:52:14,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:14,646 INFO L470 AbstractCegarLoop]: Abstraction has 465 states and 715 transitions. [2021-12-16 00:52:14,647 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, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 00:52:14,647 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 715 transitions. [2021-12-16 00:52:14,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-12-16 00:52:14,649 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:14,649 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:52:14,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-16 00:52:14,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:52:14,867 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:14,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:14,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1310143418, now seen corresponding path program 1 times [2021-12-16 00:52:14,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:14,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288665623] [2021-12-16 00:52:14,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:14,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:14,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:14,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:14,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:14,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-16 00:52:14,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-16 00:52:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-16 00:52:14,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-16 00:52:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-16 00:52:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 00:52:14,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 00:52:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-16 00:52:14,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 00:52:14,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 00:52:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 00:52:14,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-16 00:52:14,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 00:52:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-16 00:52:14,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-16 00:52:14,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:14,960 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-12-16 00:52:14,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:14,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288665623] [2021-12-16 00:52:14,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288665623] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 00:52:14,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934050580] [2021-12-16 00:52:14,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:14,961 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:52:14,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:52:14,976 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 00:52:15,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-16 00:52:15,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:15,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 1208 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-16 00:52:15,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 00:52:15,504 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-16 00:52:15,504 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 00:52:15,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934050580] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:15,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 00:52:15,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-16 00:52:15,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328071175] [2021-12-16 00:52:15,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:15,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 00:52:15,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:15,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 00:52:15,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-16 00:52:15,506 INFO L87 Difference]: Start difference. First operand 465 states and 715 transitions. Second operand has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-16 00:52:15,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:15,551 INFO L93 Difference]: Finished difference Result 921 states and 1420 transitions. [2021-12-16 00:52:15,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 00:52:15,552 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 143 [2021-12-16 00:52:15,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:15,554 INFO L225 Difference]: With dead ends: 921 [2021-12-16 00:52:15,555 INFO L226 Difference]: Without dead ends: 467 [2021-12-16 00:52:15,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:52:15,557 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 [2021-12-16 00:52:15,557 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] [2021-12-16 00:52:15,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2021-12-16 00:52:15,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2021-12-16 00:52:15,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 360 states have (on average 1.5638888888888889) internal successors, (563), 365 states have internal predecessors, (563), 77 states have call successors, (77), 28 states have call predecessors, (77), 29 states have return successors, (78), 75 states have call predecessors, (78), 76 states have call successors, (78) [2021-12-16 00:52:15,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 718 transitions. [2021-12-16 00:52:15,573 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 718 transitions. Word has length 143 [2021-12-16 00:52:15,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:15,573 INFO L470 AbstractCegarLoop]: Abstraction has 467 states and 718 transitions. [2021-12-16 00:52:15,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-16 00:52:15,573 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 718 transitions. [2021-12-16 00:52:15,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-16 00:52:15,575 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:15,575 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:52:15,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-16 00:52:15,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:52:15,796 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:15,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:15,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1876408198, now seen corresponding path program 1 times [2021-12-16 00:52:15,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:15,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724450587] [2021-12-16 00:52:15,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:15,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:15,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:15,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:15,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:15,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:15,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:15,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-16 00:52:15,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:15,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-16 00:52:15,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:15,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 00:52:15,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:15,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 00:52:15,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:15,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-16 00:52:15,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:15,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-16 00:52:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:15,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-16 00:52:15,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:15,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-16 00:52:15,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:15,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 00:52:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:15,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-16 00:52:15,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:15,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-16 00:52:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:15,963 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-16 00:52:15,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:15,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724450587] [2021-12-16 00:52:15,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724450587] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 00:52:15,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911875145] [2021-12-16 00:52:15,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:15,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:52:15,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:52:15,981 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 00:52:15,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-16 00:52:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:16,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 1128 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-16 00:52:16,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 00:52:16,364 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-16 00:52:16,364 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 00:52:16,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911875145] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:16,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 00:52:16,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-16 00:52:16,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084486681] [2021-12-16 00:52:16,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:16,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 00:52:16,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:16,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 00:52:16,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-12-16 00:52:16,367 INFO L87 Difference]: Start difference. First operand 467 states and 718 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-16 00:52:16,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:16,411 INFO L93 Difference]: Finished difference Result 923 states and 1425 transitions. [2021-12-16 00:52:16,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 00:52:16,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 125 [2021-12-16 00:52:16,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:16,414 INFO L225 Difference]: With dead ends: 923 [2021-12-16 00:52:16,414 INFO L226 Difference]: Without dead ends: 469 [2021-12-16 00:52:16,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-12-16 00:52:16,416 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 [2021-12-16 00:52:16,417 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] [2021-12-16 00:52:16,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2021-12-16 00:52:16,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2021-12-16 00:52:16,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 361 states have (on average 1.5623268698060941) internal successors, (564), 367 states have internal predecessors, (564), 77 states have call successors, (77), 28 states have call predecessors, (77), 30 states have return successors, (83), 75 states have call predecessors, (83), 76 states have call successors, (83) [2021-12-16 00:52:16,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 724 transitions. [2021-12-16 00:52:16,431 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 724 transitions. Word has length 125 [2021-12-16 00:52:16,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:16,431 INFO L470 AbstractCegarLoop]: Abstraction has 469 states and 724 transitions. [2021-12-16 00:52:16,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-16 00:52:16,432 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 724 transitions. [2021-12-16 00:52:16,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-12-16 00:52:16,434 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:16,434 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:52:16,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-16 00:52:16,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:52:16,654 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:16,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:16,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1863627439, now seen corresponding path program 1 times [2021-12-16 00:52:16,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:16,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120799672] [2021-12-16 00:52:16,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:16,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:16,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:16,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:16,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:16,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:16,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:16,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:16,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:16,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:16,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:52:16,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:16,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 00:52:16,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:16,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-16 00:52:16,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:16,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 00:52:16,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:16,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-16 00:52:16,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:16,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-16 00:52:16,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:16,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-16 00:52:16,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:16,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-16 00:52:16,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:16,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-16 00:52:16,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:16,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-16 00:52:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:16,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 00:52:16,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:16,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-16 00:52:16,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:16,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-16 00:52:16,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:16,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-16 00:52:16,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:16,843 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-12-16 00:52:16,843 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:16,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120799672] [2021-12-16 00:52:16,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120799672] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:16,843 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:52:16,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-16 00:52:16,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009681854] [2021-12-16 00:52:16,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:16,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 00:52:16,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:16,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 00:52:16,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 00:52:16,845 INFO L87 Difference]: Start difference. First operand 469 states and 724 transitions. Second operand has 9 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-16 00:52:18,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:18,264 INFO L93 Difference]: Finished difference Result 1017 states and 1589 transitions. [2021-12-16 00:52:18,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-16 00:52:18,264 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 145 [2021-12-16 00:52:18,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:18,268 INFO L225 Difference]: With dead ends: 1017 [2021-12-16 00:52:18,268 INFO L226 Difference]: Without dead ends: 571 [2021-12-16 00:52:18,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-16 00:52:18,270 INFO L933 BasicCegarLoop]: 642 mSDtfsCounter, 1476 mSDsluCounter, 1198 mSDsCounter, 0 mSdLazyCounter, 1841 mSolverCounterSat, 522 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1840 SdHoareTripleChecker+Invalid, 2363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 522 IncrementalHoareTripleChecker+Valid, 1841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-16 00:52:18,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1496 Valid, 1840 Invalid, 2363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [522 Valid, 1841 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-16 00:52:18,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2021-12-16 00:52:18,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 469. [2021-12-16 00:52:18,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 361 states have (on average 1.5623268698060941) internal successors, (564), 367 states have internal predecessors, (564), 77 states have call successors, (77), 28 states have call predecessors, (77), 30 states have return successors, (82), 75 states have call predecessors, (82), 76 states have call successors, (82) [2021-12-16 00:52:18,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 723 transitions. [2021-12-16 00:52:18,295 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 723 transitions. Word has length 145 [2021-12-16 00:52:18,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:18,295 INFO L470 AbstractCegarLoop]: Abstraction has 469 states and 723 transitions. [2021-12-16 00:52:18,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-16 00:52:18,296 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 723 transitions. [2021-12-16 00:52:18,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-12-16 00:52:18,298 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:18,298 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:52:18,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 00:52:18,298 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:18,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:18,299 INFO L85 PathProgramCache]: Analyzing trace with hash -52909548, now seen corresponding path program 2 times [2021-12-16 00:52:18,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:18,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270948988] [2021-12-16 00:52:18,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:18,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:18,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:18,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:18,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:18,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:18,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:18,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:18,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:18,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:18,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:18,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:52:18,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:18,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-16 00:52:18,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:18,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 00:52:18,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:18,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-16 00:52:18,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:18,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 00:52:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:18,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 00:52:18,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:18,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-16 00:52:18,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:18,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-16 00:52:18,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:18,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-16 00:52:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:18,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-16 00:52:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:18,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-16 00:52:18,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:18,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-16 00:52:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:18,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-16 00:52:18,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:18,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-16 00:52:18,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:18,391 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-12-16 00:52:18,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:18,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270948988] [2021-12-16 00:52:18,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270948988] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:18,392 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:52:18,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-16 00:52:18,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104996232] [2021-12-16 00:52:18,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:18,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 00:52:18,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:18,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 00:52:18,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 00:52:18,393 INFO L87 Difference]: Start difference. First operand 469 states and 723 transitions. Second operand has 9 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-16 00:52:19,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:19,710 INFO L93 Difference]: Finished difference Result 1019 states and 1592 transitions. [2021-12-16 00:52:19,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-16 00:52:19,711 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 146 [2021-12-16 00:52:19,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:19,714 INFO L225 Difference]: With dead ends: 1019 [2021-12-16 00:52:19,714 INFO L226 Difference]: Without dead ends: 573 [2021-12-16 00:52:19,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-16 00:52:19,716 INFO L933 BasicCegarLoop]: 646 mSDtfsCounter, 1468 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 1858 mSolverCounterSat, 522 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1847 SdHoareTripleChecker+Invalid, 2380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 522 IncrementalHoareTripleChecker+Valid, 1858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-16 00:52:19,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1488 Valid, 1847 Invalid, 2380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [522 Valid, 1858 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-16 00:52:19,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2021-12-16 00:52:19,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 471. [2021-12-16 00:52:19,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 362 states have (on average 1.5607734806629834) internal successors, (565), 369 states have internal predecessors, (565), 77 states have call successors, (77), 28 states have call predecessors, (77), 31 states have return successors, (84), 75 states have call predecessors, (84), 76 states have call successors, (84) [2021-12-16 00:52:19,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 726 transitions. [2021-12-16 00:52:19,735 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 726 transitions. Word has length 146 [2021-12-16 00:52:19,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:19,735 INFO L470 AbstractCegarLoop]: Abstraction has 471 states and 726 transitions. [2021-12-16 00:52:19,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-16 00:52:19,735 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 726 transitions. [2021-12-16 00:52:19,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-12-16 00:52:19,737 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:19,737 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:52:19,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-16 00:52:19,737 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:19,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:19,738 INFO L85 PathProgramCache]: Analyzing trace with hash 840545940, now seen corresponding path program 1 times [2021-12-16 00:52:19,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:19,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805934219] [2021-12-16 00:52:19,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:19,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:19,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:19,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:19,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:19,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:19,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:19,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:19,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:19,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:19,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:52:19,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:19,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:52:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:19,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-16 00:52:19,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:19,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-16 00:52:19,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:19,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-16 00:52:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:19,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-16 00:52:19,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:19,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-16 00:52:19,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:19,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-16 00:52:19,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:19,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 00:52:19,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:19,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-16 00:52:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:19,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-16 00:52:19,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:19,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-16 00:52:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:19,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-16 00:52:19,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:19,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-16 00:52:19,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:19,850 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 00:52:19,850 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:19,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805934219] [2021-12-16 00:52:19,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805934219] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:19,851 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:52:19,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-16 00:52:19,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769037039] [2021-12-16 00:52:19,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:19,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 00:52:19,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:19,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 00:52:19,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-16 00:52:19,852 INFO L87 Difference]: Start difference. First operand 471 states and 726 transitions. Second operand has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2021-12-16 00:52:21,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:21,614 INFO L93 Difference]: Finished difference Result 1017 states and 1587 transitions. [2021-12-16 00:52:21,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-16 00:52:21,615 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 147 [2021-12-16 00:52:21,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:21,618 INFO L225 Difference]: With dead ends: 1017 [2021-12-16 00:52:21,618 INFO L226 Difference]: Without dead ends: 573 [2021-12-16 00:52:21,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-16 00:52:21,620 INFO L933 BasicCegarLoop]: 627 mSDtfsCounter, 1606 mSDsluCounter, 1767 mSDsCounter, 0 mSdLazyCounter, 3369 mSolverCounterSat, 582 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1606 SdHoareTripleChecker+Valid, 2394 SdHoareTripleChecker+Invalid, 3951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 582 IncrementalHoareTripleChecker+Valid, 3369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-16 00:52:21,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1606 Valid, 2394 Invalid, 3951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [582 Valid, 3369 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-16 00:52:21,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2021-12-16 00:52:21,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 471. [2021-12-16 00:52:21,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 362 states have (on average 1.5607734806629834) internal successors, (565), 369 states have internal predecessors, (565), 77 states have call successors, (77), 28 states have call predecessors, (77), 31 states have return successors, (83), 75 states have call predecessors, (83), 76 states have call successors, (83) [2021-12-16 00:52:21,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 725 transitions. [2021-12-16 00:52:21,639 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 725 transitions. Word has length 147 [2021-12-16 00:52:21,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:21,639 INFO L470 AbstractCegarLoop]: Abstraction has 471 states and 725 transitions. [2021-12-16 00:52:21,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2021-12-16 00:52:21,639 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 725 transitions. [2021-12-16 00:52:21,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-16 00:52:21,641 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:21,641 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:52:21,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-16 00:52:21,642 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:21,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:21,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1153498004, now seen corresponding path program 2 times [2021-12-16 00:52:21,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:21,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170039752] [2021-12-16 00:52:21,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:21,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:21,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:21,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:21,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:21,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:52:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:52:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-16 00:52:21,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-16 00:52:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 00:52:21,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 00:52:21,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-16 00:52:21,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-16 00:52:21,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-16 00:52:21,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-16 00:52:21,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 00:52:21,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 00:52:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-16 00:52:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-16 00:52:21,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:21,797 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 00:52:21,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:21,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170039752] [2021-12-16 00:52:21,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170039752] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:21,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:52:21,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-16 00:52:21,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563664521] [2021-12-16 00:52:21,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:21,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 00:52:21,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:21,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 00:52:21,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-16 00:52:21,799 INFO L87 Difference]: Start difference. First operand 471 states and 725 transitions. Second operand has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2021-12-16 00:52:23,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:23,616 INFO L93 Difference]: Finished difference Result 1019 states and 1593 transitions. [2021-12-16 00:52:23,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-16 00:52:23,616 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 148 [2021-12-16 00:52:23,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:23,619 INFO L225 Difference]: With dead ends: 1019 [2021-12-16 00:52:23,619 INFO L226 Difference]: Without dead ends: 575 [2021-12-16 00:52:23,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-16 00:52:23,622 INFO L933 BasicCegarLoop]: 630 mSDtfsCounter, 1596 mSDsluCounter, 1761 mSDsCounter, 0 mSdLazyCounter, 3439 mSolverCounterSat, 572 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1596 SdHoareTripleChecker+Valid, 2391 SdHoareTripleChecker+Invalid, 4011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 572 IncrementalHoareTripleChecker+Valid, 3439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-16 00:52:23,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1596 Valid, 2391 Invalid, 4011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [572 Valid, 3439 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-16 00:52:23,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2021-12-16 00:52:23,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 473. [2021-12-16 00:52:23,638 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) [2021-12-16 00:52:23,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 731 transitions. [2021-12-16 00:52:23,640 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 731 transitions. Word has length 148 [2021-12-16 00:52:23,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:23,640 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 731 transitions. [2021-12-16 00:52:23,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2021-12-16 00:52:23,641 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 731 transitions. [2021-12-16 00:52:23,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-12-16 00:52:23,643 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:23,643 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:52:23,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-16 00:52:23,643 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:23,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:23,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1733786215, now seen corresponding path program 1 times [2021-12-16 00:52:23,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:23,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091558965] [2021-12-16 00:52:23,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:23,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:23,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:23,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:23,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:23,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:52:23,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:52:23,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 00:52:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 00:52:23,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-16 00:52:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-16 00:52:23,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 00:52:23,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-16 00:52:23,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 00:52:23,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-16 00:52:23,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-16 00:52:23,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-16 00:52:23,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 00:52:23,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-16 00:52:23,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,729 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-16 00:52:23,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:23,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091558965] [2021-12-16 00:52:23,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091558965] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 00:52:23,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885725355] [2021-12-16 00:52:23,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:23,729 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:52:23,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 00:52:23,731 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 00:52:23,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-16 00:52:23,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:23,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 1214 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-16 00:52:23,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 00:52:24,133 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-16 00:52:24,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 00:52:24,312 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-16 00:52:24,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885725355] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 00:52:24,312 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 00:52:24,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2021-12-16 00:52:24,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853736444] [2021-12-16 00:52:24,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 00:52:24,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-16 00:52:24,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:24,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-16 00:52:24,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-16 00:52:24,316 INFO L87 Difference]: Start difference. First operand 473 states and 731 transitions. Second operand has 11 states, 11 states have (on average 12.0) internal successors, (132), 7 states have internal predecessors, (132), 2 states have call successors, (43), 6 states have call predecessors, (43), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-12-16 00:52:25,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:25,713 INFO L93 Difference]: Finished difference Result 1206 states and 1962 transitions. [2021-12-16 00:52:25,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-16 00:52:25,714 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.0) internal successors, (132), 7 states have internal predecessors, (132), 2 states have call successors, (43), 6 states have call predecessors, (43), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 149 [2021-12-16 00:52:25,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:25,718 INFO L225 Difference]: With dead ends: 1206 [2021-12-16 00:52:25,718 INFO L226 Difference]: Without dead ends: 992 [2021-12-16 00:52:25,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2021-12-16 00:52:25,720 INFO L933 BasicCegarLoop]: 734 mSDtfsCounter, 1845 mSDsluCounter, 1416 mSDsCounter, 0 mSdLazyCounter, 1692 mSolverCounterSat, 723 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1899 SdHoareTripleChecker+Valid, 2150 SdHoareTripleChecker+Invalid, 2415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 723 IncrementalHoareTripleChecker+Valid, 1692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-16 00:52:25,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1899 Valid, 2150 Invalid, 2415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [723 Valid, 1692 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-16 00:52:25,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2021-12-16 00:52:25,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 866. [2021-12-16 00:52:25,745 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) [2021-12-16 00:52:25,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1432 transitions. [2021-12-16 00:52:25,748 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1432 transitions. Word has length 149 [2021-12-16 00:52:25,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:25,748 INFO L470 AbstractCegarLoop]: Abstraction has 866 states and 1432 transitions. [2021-12-16 00:52:25,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.0) internal successors, (132), 7 states have internal predecessors, (132), 2 states have call successors, (43), 6 states have call predecessors, (43), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-12-16 00:52:25,748 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1432 transitions. [2021-12-16 00:52:25,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-12-16 00:52:25,751 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:25,752 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:52:25,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-16 00:52:25,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 00:52:25,973 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:25,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:25,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1741929290, now seen corresponding path program 1 times [2021-12-16 00:52:25,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:25,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874680813] [2021-12-16 00:52:25,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:25,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:25,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:26,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:26,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:26,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:52:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:52:26,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-16 00:52:26,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 00:52:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-16 00:52:26,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-16 00:52:26,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-16 00:52:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-16 00:52:26,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-16 00:52:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-16 00:52:26,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-16 00:52:26,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 00:52:26,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-16 00:52:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-16 00:52:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:26,074 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-16 00:52:26,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:26,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874680813] [2021-12-16 00:52:26,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874680813] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:26,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:52:26,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:52:26,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672336022] [2021-12-16 00:52:26,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:26,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:52:26,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:26,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:52:26,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:52:26,076 INFO L87 Difference]: Start difference. First operand 866 states and 1432 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 00:52:27,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:27,144 INFO L93 Difference]: Finished difference Result 2164 states and 3667 transitions. [2021-12-16 00:52:27,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:52:27,145 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 155 [2021-12-16 00:52:27,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:27,151 INFO L225 Difference]: With dead ends: 2164 [2021-12-16 00:52:27,151 INFO L226 Difference]: Without dead ends: 1366 [2021-12-16 00:52:27,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:52:27,154 INFO L933 BasicCegarLoop]: 678 mSDtfsCounter, 1471 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 594 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 1538 SdHoareTripleChecker+Invalid, 1536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 594 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-16 00:52:27,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1489 Valid, 1538 Invalid, 1536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [594 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-16 00:52:27,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2021-12-16 00:52:27,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 1256. [2021-12-16 00:52:27,205 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) [2021-12-16 00:52:27,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 2120 transitions. [2021-12-16 00:52:27,208 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 2120 transitions. Word has length 155 [2021-12-16 00:52:27,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:27,209 INFO L470 AbstractCegarLoop]: Abstraction has 1256 states and 2120 transitions. [2021-12-16 00:52:27,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 00:52:27,209 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 2120 transitions. [2021-12-16 00:52:27,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-16 00:52:27,214 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:27,214 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:52:27,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-16 00:52:27,214 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:27,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:27,215 INFO L85 PathProgramCache]: Analyzing trace with hash 513063917, now seen corresponding path program 1 times [2021-12-16 00:52:27,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:27,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540051949] [2021-12-16 00:52:27,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:27,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:27,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:27,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:27,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:27,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:27,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:27,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:27,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:52:27,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:27,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:52:27,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:27,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 00:52:27,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:27,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-16 00:52:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:27,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 00:52:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:27,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-16 00:52:27,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:27,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 00:52:27,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:27,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 00:52:27,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:27,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 00:52:27,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:27,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-16 00:52:27,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:27,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-16 00:52:27,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:27,292 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-16 00:52:27,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:27,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540051949] [2021-12-16 00:52:27,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540051949] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:27,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:52:27,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:52:27,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949964090] [2021-12-16 00:52:27,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:27,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:52:27,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:27,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:52:27,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:52:27,294 INFO L87 Difference]: Start difference. First operand 1256 states and 2120 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-16 00:52:28,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:28,390 INFO L93 Difference]: Finished difference Result 3113 states and 5341 transitions. [2021-12-16 00:52:28,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:52:28,391 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 137 [2021-12-16 00:52:28,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:28,399 INFO L225 Difference]: With dead ends: 3113 [2021-12-16 00:52:28,400 INFO L226 Difference]: Without dead ends: 1978 [2021-12-16 00:52:28,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:52:28,403 INFO L933 BasicCegarLoop]: 672 mSDtfsCounter, 1468 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 584 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 1516 SdHoareTripleChecker+Invalid, 1532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 584 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-16 00:52:28,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1486 Valid, 1516 Invalid, 1532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [584 Valid, 948 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-16 00:52:28,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2021-12-16 00:52:28,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1868. [2021-12-16 00:52:28,455 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) [2021-12-16 00:52:28,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1868 states to 1868 states and 3181 transitions. [2021-12-16 00:52:28,463 INFO L78 Accepts]: Start accepts. Automaton has 1868 states and 3181 transitions. Word has length 137 [2021-12-16 00:52:28,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:28,463 INFO L470 AbstractCegarLoop]: Abstraction has 1868 states and 3181 transitions. [2021-12-16 00:52:28,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-16 00:52:28,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1868 states and 3181 transitions. [2021-12-16 00:52:28,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-16 00:52:28,471 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:28,471 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:52:28,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-16 00:52:28,471 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:28,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:28,472 INFO L85 PathProgramCache]: Analyzing trace with hash -883764325, now seen corresponding path program 1 times [2021-12-16 00:52:28,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:28,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486442783] [2021-12-16 00:52:28,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:28,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:28,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:28,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:28,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:52:28,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:52:28,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 00:52:28,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 00:52:28,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-16 00:52:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 00:52:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-16 00:52:28,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 00:52:28,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-16 00:52:28,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-16 00:52:28,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-16 00:52:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:28,559 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-16 00:52:28,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:28,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486442783] [2021-12-16 00:52:28,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486442783] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:28,560 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:52:28,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:52:28,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129504237] [2021-12-16 00:52:28,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:28,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:52:28,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:28,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:52:28,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:52:28,561 INFO L87 Difference]: Start difference. First operand 1868 states and 3181 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-16 00:52:29,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:29,674 INFO L93 Difference]: Finished difference Result 4538 states and 7875 transitions. [2021-12-16 00:52:29,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:52:29,674 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 138 [2021-12-16 00:52:29,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:29,688 INFO L225 Difference]: With dead ends: 4538 [2021-12-16 00:52:29,688 INFO L226 Difference]: Without dead ends: 2916 [2021-12-16 00:52:29,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:52:29,695 INFO L933 BasicCegarLoop]: 671 mSDtfsCounter, 1465 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 560 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 1496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 560 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-16 00:52:29,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1484 Valid, 1509 Invalid, 1496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [560 Valid, 936 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-16 00:52:29,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2916 states. [2021-12-16 00:52:29,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2916 to 2806. [2021-12-16 00:52:29,782 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) [2021-12-16 00:52:29,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2806 states to 2806 states and 4819 transitions. [2021-12-16 00:52:29,788 INFO L78 Accepts]: Start accepts. Automaton has 2806 states and 4819 transitions. Word has length 138 [2021-12-16 00:52:29,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:29,788 INFO L470 AbstractCegarLoop]: Abstraction has 2806 states and 4819 transitions. [2021-12-16 00:52:29,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-16 00:52:29,788 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states and 4819 transitions. [2021-12-16 00:52:29,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-16 00:52:29,798 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:29,799 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:52:29,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-16 00:52:29,799 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:29,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:29,799 INFO L85 PathProgramCache]: Analyzing trace with hash 229286311, now seen corresponding path program 1 times [2021-12-16 00:52:29,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:29,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290145295] [2021-12-16 00:52:29,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:29,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:29,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:29,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:29,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:29,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:29,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:29,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:29,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:52:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:29,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:52:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:29,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-16 00:52:29,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:29,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-16 00:52:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:29,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-16 00:52:29,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:29,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-16 00:52:29,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:29,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-16 00:52:29,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:29,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 00:52:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:29,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 00:52:29,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:29,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-16 00:52:29,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:29,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-16 00:52:29,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:29,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-16 00:52:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:29,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-16 00:52:29,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:29,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-16 00:52:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:29,922 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-16 00:52:29,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:29,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290145295] [2021-12-16 00:52:29,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290145295] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:29,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:52:29,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:52:29,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416222181] [2021-12-16 00:52:29,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:29,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:52:29,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:29,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:52:29,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:52:29,924 INFO L87 Difference]: Start difference. First operand 2806 states and 4819 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 00:52:31,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:31,072 INFO L93 Difference]: Finished difference Result 6787 states and 11884 transitions. [2021-12-16 00:52:31,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:52:31,073 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 158 [2021-12-16 00:52:31,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:31,100 INFO L225 Difference]: With dead ends: 6787 [2021-12-16 00:52:31,101 INFO L226 Difference]: Without dead ends: 4431 [2021-12-16 00:52:31,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:52:31,110 INFO L933 BasicCegarLoop]: 663 mSDtfsCounter, 1467 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 922 mSolverCounterSat, 581 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 1492 SdHoareTripleChecker+Invalid, 1503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 581 IncrementalHoareTripleChecker+Valid, 922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-16 00:52:31,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1486 Valid, 1492 Invalid, 1503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [581 Valid, 922 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-16 00:52:31,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4431 states. [2021-12-16 00:52:31,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4431 to 4321. [2021-12-16 00:52:31,264 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) [2021-12-16 00:52:31,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4321 states to 4321 states and 7460 transitions. [2021-12-16 00:52:31,277 INFO L78 Accepts]: Start accepts. Automaton has 4321 states and 7460 transitions. Word has length 158 [2021-12-16 00:52:31,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:31,277 INFO L470 AbstractCegarLoop]: Abstraction has 4321 states and 7460 transitions. [2021-12-16 00:52:31,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 00:52:31,277 INFO L276 IsEmpty]: Start isEmpty. Operand 4321 states and 7460 transitions. [2021-12-16 00:52:31,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-12-16 00:52:31,291 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:31,292 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:52:31,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-16 00:52:31,292 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:31,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:31,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1363561492, now seen corresponding path program 1 times [2021-12-16 00:52:31,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:31,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701159636] [2021-12-16 00:52:31,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:31,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:31,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:31,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:31,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:31,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:31,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:31,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:31,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:31,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:31,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:52:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:31,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:52:31,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:31,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-16 00:52:31,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:31,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-16 00:52:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:31,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-16 00:52:31,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:31,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-16 00:52:31,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:31,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-16 00:52:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:31,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-16 00:52:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:31,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-16 00:52:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:31,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-16 00:52:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:31,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 00:52:31,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:31,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-16 00:52:31,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:31,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-16 00:52:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:31,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-16 00:52:31,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:31,427 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-16 00:52:31,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:31,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701159636] [2021-12-16 00:52:31,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701159636] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:31,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:52:31,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:52:31,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281159565] [2021-12-16 00:52:31,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:31,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:52:31,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:31,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:52:31,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:52:31,429 INFO L87 Difference]: Start difference. First operand 4321 states and 7460 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 00:52:32,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:32,677 INFO L93 Difference]: Finished difference Result 10803 states and 18996 transitions. [2021-12-16 00:52:32,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:52:32,677 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 159 [2021-12-16 00:52:32,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:32,717 INFO L225 Difference]: With dead ends: 10803 [2021-12-16 00:52:32,717 INFO L226 Difference]: Without dead ends: 7164 [2021-12-16 00:52:32,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:52:32,728 INFO L933 BasicCegarLoop]: 680 mSDtfsCounter, 1465 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 599 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 1546 SdHoareTripleChecker+Invalid, 1539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 599 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-16 00:52:32,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1483 Valid, 1546 Invalid, 1539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [599 Valid, 940 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-16 00:52:32,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7164 states. [2021-12-16 00:52:32,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7164 to 7054. [2021-12-16 00:52:33,016 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) [2021-12-16 00:52:33,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7054 states to 7054 states and 12195 transitions. [2021-12-16 00:52:33,033 INFO L78 Accepts]: Start accepts. Automaton has 7054 states and 12195 transitions. Word has length 159 [2021-12-16 00:52:33,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:33,034 INFO L470 AbstractCegarLoop]: Abstraction has 7054 states and 12195 transitions. [2021-12-16 00:52:33,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 00:52:33,035 INFO L276 IsEmpty]: Start isEmpty. Operand 7054 states and 12195 transitions. [2021-12-16 00:52:33,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-12-16 00:52:33,055 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:33,055 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:52:33,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-16 00:52:33,056 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:33,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:33,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1354206440, now seen corresponding path program 1 times [2021-12-16 00:52:33,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:33,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531190867] [2021-12-16 00:52:33,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:33,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:33,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:33,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:33,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:33,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:33,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:52:33,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:52:33,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 00:52:33,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 00:52:33,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-16 00:52:33,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-16 00:52:33,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-16 00:52:33,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-16 00:52:33,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-16 00:52:33,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-16 00:52:33,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-16 00:52:33,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:33,133 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-16 00:52:33,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:33,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531190867] [2021-12-16 00:52:33,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531190867] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:33,133 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:52:33,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:52:33,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863886041] [2021-12-16 00:52:33,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:33,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:52:33,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:33,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:52:33,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:52:33,135 INFO L87 Difference]: Start difference. First operand 7054 states and 12195 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-16 00:52:34,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:34,603 INFO L93 Difference]: Finished difference Result 17943 states and 31568 transitions. [2021-12-16 00:52:34,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:52:34,604 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 141 [2021-12-16 00:52:34,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:34,646 INFO L225 Difference]: With dead ends: 17943 [2021-12-16 00:52:34,647 INFO L226 Difference]: Without dead ends: 11948 [2021-12-16 00:52:34,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:52:34,670 INFO L933 BasicCegarLoop]: 667 mSDtfsCounter, 1462 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 576 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1481 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 1514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 576 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-16 00:52:34,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1481 Valid, 1506 Invalid, 1514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [576 Valid, 938 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-16 00:52:34,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11948 states. [2021-12-16 00:52:35,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11948 to 11838. [2021-12-16 00:52:35,156 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) [2021-12-16 00:52:35,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11838 states to 11838 states and 20495 transitions. [2021-12-16 00:52:35,186 INFO L78 Accepts]: Start accepts. Automaton has 11838 states and 20495 transitions. Word has length 141 [2021-12-16 00:52:35,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:35,186 INFO L470 AbstractCegarLoop]: Abstraction has 11838 states and 20495 transitions. [2021-12-16 00:52:35,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-16 00:52:35,186 INFO L276 IsEmpty]: Start isEmpty. Operand 11838 states and 20495 transitions. [2021-12-16 00:52:35,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-12-16 00:52:35,215 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:35,216 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:52:35,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-16 00:52:35,216 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:35,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:35,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1681961187, now seen corresponding path program 1 times [2021-12-16 00:52:35,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:35,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93072779] [2021-12-16 00:52:35,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:35,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:35,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:35,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:35,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:35,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:52:35,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:52:35,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-16 00:52:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-16 00:52:35,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-16 00:52:35,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-16 00:52:35,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 00:52:35,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-16 00:52:35,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-16 00:52:35,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 00:52:35,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 00:52:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:35,292 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-16 00:52:35,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:35,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93072779] [2021-12-16 00:52:35,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93072779] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:35,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:52:35,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:52:35,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811058482] [2021-12-16 00:52:35,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:35,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:52:35,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:35,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:52:35,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:52:35,295 INFO L87 Difference]: Start difference. First operand 11838 states and 20495 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-16 00:52:36,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:36,835 INFO L93 Difference]: Finished difference Result 28376 states and 49693 transitions. [2021-12-16 00:52:36,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:52:36,835 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 142 [2021-12-16 00:52:36,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:36,932 INFO L225 Difference]: With dead ends: 28376 [2021-12-16 00:52:36,933 INFO L226 Difference]: Without dead ends: 18541 [2021-12-16 00:52:36,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:52:36,960 INFO L933 BasicCegarLoop]: 672 mSDtfsCounter, 1461 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 577 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1479 SdHoareTripleChecker+Valid, 1510 SdHoareTripleChecker+Invalid, 1513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 577 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-16 00:52:36,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1479 Valid, 1510 Invalid, 1513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [577 Valid, 936 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-16 00:52:36,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18541 states. [2021-12-16 00:52:37,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18541 to 18431. [2021-12-16 00:52:37,673 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) [2021-12-16 00:52:37,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18431 states to 18431 states and 31611 transitions. [2021-12-16 00:52:37,728 INFO L78 Accepts]: Start accepts. Automaton has 18431 states and 31611 transitions. Word has length 142 [2021-12-16 00:52:37,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:37,729 INFO L470 AbstractCegarLoop]: Abstraction has 18431 states and 31611 transitions. [2021-12-16 00:52:37,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-16 00:52:37,729 INFO L276 IsEmpty]: Start isEmpty. Operand 18431 states and 31611 transitions. [2021-12-16 00:52:37,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-12-16 00:52:37,756 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:37,756 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:52:37,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-16 00:52:37,757 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:37,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:37,757 INFO L85 PathProgramCache]: Analyzing trace with hash 467229804, now seen corresponding path program 1 times [2021-12-16 00:52:37,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:37,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110616894] [2021-12-16 00:52:37,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:37,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:37,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:37,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:37,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:37,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:37,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:37,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:37,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:37,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:52:37,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:37,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:52:37,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:37,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 00:52:37,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:37,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-16 00:52:37,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:37,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-16 00:52:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:37,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-16 00:52:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:37,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 00:52:37,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:37,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-16 00:52:37,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:37,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-16 00:52:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:37,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-16 00:52:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:37,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-16 00:52:37,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:37,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-16 00:52:37,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:37,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-16 00:52:37,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:37,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-16 00:52:37,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:37,892 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-16 00:52:37,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:37,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110616894] [2021-12-16 00:52:37,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110616894] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:37,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:52:37,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:52:37,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950615794] [2021-12-16 00:52:37,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:37,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:52:37,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:37,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:52:37,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:52:37,898 INFO L87 Difference]: Start difference. First operand 18431 states and 31611 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 00:52:39,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:39,774 INFO L93 Difference]: Finished difference Result 48798 states and 85197 transitions. [2021-12-16 00:52:39,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:52:39,775 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 162 [2021-12-16 00:52:39,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:39,863 INFO L225 Difference]: With dead ends: 48798 [2021-12-16 00:52:39,864 INFO L226 Difference]: Without dead ends: 32977 [2021-12-16 00:52:39,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:52:39,901 INFO L933 BasicCegarLoop]: 669 mSDtfsCounter, 1455 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 597 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1473 SdHoareTripleChecker+Valid, 1503 SdHoareTripleChecker+Invalid, 1535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 597 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-16 00:52:39,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1473 Valid, 1503 Invalid, 1535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [597 Valid, 938 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-16 00:52:39,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32977 states. [2021-12-16 00:52:41,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32977 to 32867. [2021-12-16 00:52:41,447 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) [2021-12-16 00:52:41,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32867 states to 32867 states and 56292 transitions. [2021-12-16 00:52:41,656 INFO L78 Accepts]: Start accepts. Automaton has 32867 states and 56292 transitions. Word has length 162 [2021-12-16 00:52:41,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:41,657 INFO L470 AbstractCegarLoop]: Abstraction has 32867 states and 56292 transitions. [2021-12-16 00:52:41,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 00:52:41,657 INFO L276 IsEmpty]: Start isEmpty. Operand 32867 states and 56292 transitions. [2021-12-16 00:52:41,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-12-16 00:52:41,694 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:41,694 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:52:41,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-16 00:52:41,695 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:41,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:41,695 INFO L85 PathProgramCache]: Analyzing trace with hash 185430960, now seen corresponding path program 1 times [2021-12-16 00:52:41,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:41,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12811077] [2021-12-16 00:52:41,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:41,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:41,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:41,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:41,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:41,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:41,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:41,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:41,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:41,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:52:41,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:41,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:52:41,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:41,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-16 00:52:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:41,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 00:52:41,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:41,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-16 00:52:41,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:41,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-16 00:52:41,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:41,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 00:52:41,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:41,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-16 00:52:41,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:41,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-16 00:52:41,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:41,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-16 00:52:41,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:41,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-16 00:52:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:41,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-16 00:52:41,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:41,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-16 00:52:41,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:41,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-16 00:52:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:41,802 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-16 00:52:41,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:41,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12811077] [2021-12-16 00:52:41,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12811077] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:41,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:52:41,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:52:41,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969153843] [2021-12-16 00:52:41,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:41,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:52:41,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:41,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:52:41,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:52:41,805 INFO L87 Difference]: Start difference. First operand 32867 states and 56292 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 00:52:44,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:44,457 INFO L93 Difference]: Finished difference Result 89695 states and 155831 transitions. [2021-12-16 00:52:44,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:52:44,458 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 163 [2021-12-16 00:52:44,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:44,685 INFO L225 Difference]: With dead ends: 89695 [2021-12-16 00:52:44,685 INFO L226 Difference]: Without dead ends: 60314 [2021-12-16 00:52:44,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:52:44,762 INFO L933 BasicCegarLoop]: 669 mSDtfsCounter, 1457 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 584 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1476 SdHoareTripleChecker+Valid, 1512 SdHoareTripleChecker+Invalid, 1522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 584 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-16 00:52:44,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1476 Valid, 1512 Invalid, 1522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [584 Valid, 938 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-16 00:52:44,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60314 states. [2021-12-16 00:52:47,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60314 to 60204. [2021-12-16 00:52:47,118 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) [2021-12-16 00:52:47,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60204 states to 60204 states and 102873 transitions. [2021-12-16 00:52:47,327 INFO L78 Accepts]: Start accepts. Automaton has 60204 states and 102873 transitions. Word has length 163 [2021-12-16 00:52:47,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:47,328 INFO L470 AbstractCegarLoop]: Abstraction has 60204 states and 102873 transitions. [2021-12-16 00:52:47,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 00:52:47,328 INFO L276 IsEmpty]: Start isEmpty. Operand 60204 states and 102873 transitions. [2021-12-16 00:52:47,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-12-16 00:52:47,376 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:47,376 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:52:47,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-16 00:52:47,377 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:47,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:47,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1839588532, now seen corresponding path program 1 times [2021-12-16 00:52:47,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:47,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313318842] [2021-12-16 00:52:47,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:47,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:47,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:47,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:47,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:47,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:47,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:52:47,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:52:47,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-16 00:52:47,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-16 00:52:47,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-16 00:52:47,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-16 00:52:47,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 00:52:47,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-16 00:52:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-16 00:52:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-16 00:52:47,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-16 00:52:47,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-16 00:52:47,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-16 00:52:47,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-16 00:52:47,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:47,470 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-16 00:52:47,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:47,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313318842] [2021-12-16 00:52:47,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313318842] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:47,471 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:52:47,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 00:52:47,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74811242] [2021-12-16 00:52:47,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:47,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 00:52:47,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:47,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 00:52:47,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 00:52:47,473 INFO L87 Difference]: Start difference. First operand 60204 states and 102873 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 00:52:51,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:52:51,239 INFO L93 Difference]: Finished difference Result 112786 states and 196409 transitions. [2021-12-16 00:52:51,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 00:52:51,240 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 164 [2021-12-16 00:52:51,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:52:51,655 INFO L225 Difference]: With dead ends: 112786 [2021-12-16 00:52:51,656 INFO L226 Difference]: Without dead ends: 112572 [2021-12-16 00:52:51,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-16 00:52:51,716 INFO L933 BasicCegarLoop]: 664 mSDtfsCounter, 1454 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 593 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1473 SdHoareTripleChecker+Valid, 1498 SdHoareTripleChecker+Invalid, 1529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 593 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-16 00:52:51,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1473 Valid, 1498 Invalid, 1529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [593 Valid, 936 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-16 00:52:51,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112572 states. [2021-12-16 00:52:56,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112572 to 112462. [2021-12-16 00:52:56,161 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) [2021-12-16 00:52:56,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112462 states to 112462 states and 191562 transitions. [2021-12-16 00:52:56,576 INFO L78 Accepts]: Start accepts. Automaton has 112462 states and 191562 transitions. Word has length 164 [2021-12-16 00:52:56,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 00:52:56,576 INFO L470 AbstractCegarLoop]: Abstraction has 112462 states and 191562 transitions. [2021-12-16 00:52:56,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-16 00:52:56,576 INFO L276 IsEmpty]: Start isEmpty. Operand 112462 states and 191562 transitions. [2021-12-16 00:52:56,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-12-16 00:52:56,634 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 00:52:56,634 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 00:52:56,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-16 00:52:56,635 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 00:52:56,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 00:52:56,635 INFO L85 PathProgramCache]: Analyzing trace with hash 712030116, now seen corresponding path program 1 times [2021-12-16 00:52:56,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 00:52:56,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817422050] [2021-12-16 00:52:56,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 00:52:56,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 00:52:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:56,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 00:52:56,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:56,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 00:52:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:56,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 00:52:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:56,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 00:52:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:56,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 00:52:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:56,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 00:52:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:56,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 00:52:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:56,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 00:52:56,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:56,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 00:52:56,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:56,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 00:52:56,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:56,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-16 00:52:56,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:56,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-16 00:52:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:56,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-16 00:52:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:56,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-16 00:52:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:56,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-16 00:52:56,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 00:52:56,858 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-16 00:52:56,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 00:52:56,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817422050] [2021-12-16 00:52:56,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817422050] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 00:52:56,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 00:52:56,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-12-16 00:52:56,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368544925] [2021-12-16 00:52:56,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 00:52:56,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-16 00:52:56,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 00:52:56,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-16 00:52:56,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-12-16 00:52:56,861 INFO L87 Difference]: Start difference. First operand 112462 states and 191562 transitions. Second operand has 18 states, 16 states have (on average 6.0625) internal successors, (97), 12 states have internal predecessors, (97), 6 states have call successors, (18), 7 states have call predecessors, (18), 4 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2021-12-16 00:53:08,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 00:53:08,533 INFO L93 Difference]: Finished difference Result 224577 states and 394452 transitions. [2021-12-16 00:53:08,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-12-16 00:53:08,533 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 6.0625) internal successors, (97), 12 states have internal predecessors, (97), 6 states have call successors, (18), 7 states have call predecessors, (18), 4 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 146 [2021-12-16 00:53:08,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 00:53:09,802 INFO L225 Difference]: With dead ends: 224577 [2021-12-16 00:53:09,803 INFO L226 Difference]: Without dead ends: 224369 [2021-12-16 00:53:09,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1198 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=778, Invalid=3254, Unknown=0, NotChecked=0, Total=4032 [2021-12-16 00:53:09,894 INFO L933 BasicCegarLoop]: 780 mSDtfsCounter, 5115 mSDsluCounter, 3312 mSDsCounter, 0 mSdLazyCounter, 9677 mSolverCounterSat, 2457 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5130 SdHoareTripleChecker+Valid, 4092 SdHoareTripleChecker+Invalid, 12134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2457 IncrementalHoareTripleChecker+Valid, 9677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-12-16 00:53:09,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5130 Valid, 4092 Invalid, 12134 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2457 Valid, 9677 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-12-16 00:53:10,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224369 states.