./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec7_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b 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_spec7_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 2586c6a9c5639b30d1f21b288976c8c026e2c567887902cc846265d5507c0a62 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 14:40:21,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 14:40:21,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 14:40:21,979 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 14:40:21,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 14:40:21,982 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 14:40:21,984 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 14:40:21,987 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 14:40:21,989 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 14:40:21,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 14:40:21,993 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 14:40:21,995 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 14:40:21,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 14:40:21,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 14:40:21,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 14:40:22,005 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 14:40:22,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 14:40:22,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 14:40:22,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 14:40:22,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 14:40:22,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 14:40:22,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 14:40:22,018 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 14:40:22,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 14:40:22,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 14:40:22,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 14:40:22,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 14:40:22,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 14:40:22,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 14:40:22,029 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 14:40:22,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 14:40:22,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 14:40:22,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 14:40:22,032 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 14:40:22,033 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 14:40:22,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 14:40:22,034 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 14:40:22,034 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 14:40:22,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 14:40:22,036 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 14:40:22,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 14:40:22,038 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 14:40:22,067 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 14:40:22,067 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 14:40:22,068 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 14:40:22,068 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 14:40:22,068 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 14:40:22,068 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 14:40:22,069 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 14:40:22,069 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 14:40:22,069 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 14:40:22,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 14:40:22,069 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 14:40:22,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 14:40:22,070 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 14:40:22,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 14:40:22,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 14:40:22,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 14:40:22,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 14:40:22,070 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 14:40:22,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 14:40:22,070 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 14:40:22,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 14:40:22,071 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 14:40:22,071 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 14:40:22,071 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 14:40:22,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 14:40:22,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 14:40:22,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 14:40:22,072 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 14:40:22,072 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 14:40:22,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 14:40:22,072 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 14:40:22,072 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 14:40:22,073 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 14:40:22,073 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 14:40:22,073 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2586c6a9c5639b30d1f21b288976c8c026e2c567887902cc846265d5507c0a62 [2021-12-14 14:40:22,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 14:40:22,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 14:40:22,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 14:40:22,333 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 14:40:22,334 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 14:40:22,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec7_product29.cil.c [2021-12-14 14:40:22,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06fcc7584/884c4902474f4f26adafc416287139f4/FLAGe8a9c4716 [2021-12-14 14:40:22,888 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 14:40:22,889 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec7_product29.cil.c [2021-12-14 14:40:22,912 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06fcc7584/884c4902474f4f26adafc416287139f4/FLAGe8a9c4716 [2021-12-14 14:40:23,406 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06fcc7584/884c4902474f4f26adafc416287139f4 [2021-12-14 14:40:23,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 14:40:23,410 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 14:40:23,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 14:40:23,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 14:40:23,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 14:40:23,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:40:23" (1/1) ... [2021-12-14 14:40:23,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b0c2e32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:23, skipping insertion in model container [2021-12-14 14:40:23,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:40:23" (1/1) ... [2021-12-14 14:40:23,426 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 14:40:23,490 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 14:40:23,793 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_spec7_product29.cil.c[16949,16962] [2021-12-14 14:40:23,953 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 14:40:23,961 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 14:40:23,991 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_spec7_product29.cil.c[16949,16962] [2021-12-14 14:40:24,075 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 14:40:24,098 INFO L208 MainTranslator]: Completed translation [2021-12-14 14:40:24,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:24 WrapperNode [2021-12-14 14:40:24,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 14:40:24,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 14:40:24,100 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 14:40:24,100 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 14:40:24,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:24" (1/1) ... [2021-12-14 14:40:24,139 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:24" (1/1) ... [2021-12-14 14:40:24,209 INFO L137 Inliner]: procedures = 131, calls = 224, calls flagged for inlining = 55, calls inlined = 47, statements flattened = 910 [2021-12-14 14:40:24,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 14:40:24,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 14:40:24,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 14:40:24,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 14:40:24,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:24" (1/1) ... [2021-12-14 14:40:24,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:24" (1/1) ... [2021-12-14 14:40:24,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:24" (1/1) ... [2021-12-14 14:40:24,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:24" (1/1) ... [2021-12-14 14:40:24,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:24" (1/1) ... [2021-12-14 14:40:24,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:24" (1/1) ... [2021-12-14 14:40:24,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:24" (1/1) ... [2021-12-14 14:40:24,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 14:40:24,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 14:40:24,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 14:40:24,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 14:40:24,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:24" (1/1) ... [2021-12-14 14:40:24,313 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 14:40:24,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:40:24,345 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) [2021-12-14 14:40:24,400 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 [2021-12-14 14:40:24,418 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-12-14 14:40:24,418 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-12-14 14:40:24,418 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-14 14:40:24,418 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-14 14:40:24,418 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-12-14 14:40:24,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-12-14 14:40:24,419 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-14 14:40:24,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-14 14:40:24,419 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-12-14 14:40:24,419 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-12-14 14:40:24,419 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-14 14:40:24,420 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-14 14:40:24,420 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-14 14:40:24,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-14 14:40:24,420 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-12-14 14:40:24,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-12-14 14:40:24,420 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-14 14:40:24,420 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-14 14:40:24,421 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-12-14 14:40:24,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-12-14 14:40:24,421 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-12-14 14:40:24,421 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-12-14 14:40:24,421 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-14 14:40:24,421 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-14 14:40:24,422 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-14 14:40:24,422 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-12-14 14:40:24,422 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-12-14 14:40:24,422 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-14 14:40:24,422 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-14 14:40:24,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 14:40:24,422 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-12-14 14:40:24,423 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-12-14 14:40:24,423 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2021-12-14 14:40:24,423 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2021-12-14 14:40:24,423 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-14 14:40:24,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-14 14:40:24,424 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-14 14:40:24,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-14 14:40:24,424 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-14 14:40:24,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-14 14:40:24,424 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-14 14:40:24,425 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-14 14:40:24,425 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2021-12-14 14:40:24,425 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2021-12-14 14:40:24,425 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2021-12-14 14:40:24,426 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2021-12-14 14:40:24,426 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-14 14:40:24,426 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-14 14:40:24,426 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-12-14 14:40:24,426 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-12-14 14:40:24,426 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-14 14:40:24,427 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-14 14:40:24,427 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-14 14:40:24,427 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-14 14:40:24,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 14:40:24,428 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-14 14:40:24,429 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-14 14:40:24,429 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-14 14:40:24,430 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-14 14:40:24,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 14:40:24,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 14:40:24,641 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 14:40:24,642 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 14:40:25,287 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 14:40:25,305 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 14:40:25,305 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-14 14:40:25,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:40:25 BoogieIcfgContainer [2021-12-14 14:40:25,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 14:40:25,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 14:40:25,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 14:40:25,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 14:40:25,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:40:23" (1/3) ... [2021-12-14 14:40:25,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d03dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:40:25, skipping insertion in model container [2021-12-14 14:40:25,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:24" (2/3) ... [2021-12-14 14:40:25,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d03dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:40:25, skipping insertion in model container [2021-12-14 14:40:25,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:40:25" (3/3) ... [2021-12-14 14:40:25,320 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec7_product29.cil.c [2021-12-14 14:40:25,324 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 14:40:25,324 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 14:40:25,370 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 14:40:25,376 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 [2021-12-14 14:40:25,377 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 14:40:25,401 INFO L276 IsEmpty]: Start isEmpty. Operand has 405 states, 313 states have (on average 1.5559105431309903) internal successors, (487), 318 states have internal predecessors, (487), 62 states have call successors, (62), 28 states have call predecessors, (62), 28 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2021-12-14 14:40:25,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-14 14:40:25,426 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:25,427 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-14 14:40:25,427 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:25,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:25,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1198537631, now seen corresponding path program 1 times [2021-12-14 14:40:25,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:25,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937753508] [2021-12-14 14:40:25,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:25,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:25,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:25,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:25,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:25,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:25,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:25,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 14:40:25,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:25,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-14 14:40:25,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:25,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 14:40:25,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:25,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 14:40:25,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:25,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 14:40:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:25,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 14:40:25,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:25,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 14:40:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:25,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 14:40:25,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:25,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 14:40:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:25,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 14:40:25,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:25,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-14 14:40:25,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:25,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-14 14:40:25,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:25,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 14:40:25,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:25,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 14:40:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:25,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-14 14:40:25,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:25,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-14 14:40:25,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:25,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:40:25,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:25,968 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-14 14:40:25,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:25,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937753508] [2021-12-14 14:40:25,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937753508] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:40:25,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690754311] [2021-12-14 14:40:25,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:25,971 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:40:25,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:40:25,975 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) [2021-12-14 14:40:26,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-14 14:40:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:26,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 1239 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-14 14:40:26,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:40:26,730 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-14 14:40:26,731 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 14:40:26,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690754311] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:26,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 14:40:26,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-12-14 14:40:26,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337799912] [2021-12-14 14:40:26,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:26,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-14 14:40:26,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:26,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-14 14:40:26,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-14 14:40:26,776 INFO L87 Difference]: Start difference. First operand has 405 states, 313 states have (on average 1.5559105431309903) internal successors, (487), 318 states have internal predecessors, (487), 62 states have call successors, (62), 28 states have call predecessors, (62), 28 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 14:40:26,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:26,872 INFO L93 Difference]: Finished difference Result 622 states and 920 transitions. [2021-12-14 14:40:26,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-14 14:40:26,874 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 148 [2021-12-14 14:40:26,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:26,895 INFO L225 Difference]: With dead ends: 622 [2021-12-14 14:40:26,895 INFO L226 Difference]: Without dead ends: 398 [2021-12-14 14:40:26,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-14 14:40:26,909 INFO L933 BasicCegarLoop]: 607 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, 607 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 [2021-12-14 14:40:26,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 14:40:26,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2021-12-14 14:40:26,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2021-12-14 14:40:27,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 307 states have (on average 1.5504885993485342) internal successors, (476), 311 states have internal predecessors, (476), 62 states have call successors, (62), 28 states have call predecessors, (62), 28 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2021-12-14 14:40:27,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 599 transitions. [2021-12-14 14:40:27,007 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 599 transitions. Word has length 148 [2021-12-14 14:40:27,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:27,010 INFO L470 AbstractCegarLoop]: Abstraction has 398 states and 599 transitions. [2021-12-14 14:40:27,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 14:40:27,011 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 599 transitions. [2021-12-14 14:40:27,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-14 14:40:27,027 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:27,027 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2021-12-14 14:40:27,057 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-14 14:40:27,247 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 [2021-12-14 14:40:27,248 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:27,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:27,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1973000115, now seen corresponding path program 1 times [2021-12-14 14:40:27,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:27,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646324160] [2021-12-14 14:40:27,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:27,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:27,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:27,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 14:40:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-14 14:40:27,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 14:40:27,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-14 14:40:27,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 14:40:27,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 14:40:27,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-14 14:40:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-14 14:40:27,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-14 14:40:27,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-14 14:40:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 14:40:27,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-14 14:40:27,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-14 14:40:27,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:40:27,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,461 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-14 14:40:27,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:27,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646324160] [2021-12-14 14:40:27,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646324160] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:40:27,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411141176] [2021-12-14 14:40:27,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:27,463 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:40:27,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:40:27,464 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) [2021-12-14 14:40:27,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-14 14:40:27,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:27,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 1159 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 14:40:27,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:40:27,924 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-12-14 14:40:27,925 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 14:40:27,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411141176] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:27,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 14:40:27,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-14 14:40:27,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685729602] [2021-12-14 14:40:27,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:27,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 14:40:27,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:27,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 14:40:27,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-14 14:40:27,933 INFO L87 Difference]: Start difference. First operand 398 states and 599 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 14:40:27,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:27,968 INFO L93 Difference]: Finished difference Result 612 states and 898 transitions. [2021-12-14 14:40:27,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 14:40:27,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 130 [2021-12-14 14:40:27,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:27,971 INFO L225 Difference]: With dead ends: 612 [2021-12-14 14:40:27,972 INFO L226 Difference]: Without dead ends: 401 [2021-12-14 14:40:27,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-14 14:40:27,974 INFO L933 BasicCegarLoop]: 597 mSDtfsCounter, 1 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1192 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 [2021-12-14 14:40:27,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1192 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 14:40:27,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2021-12-14 14:40:27,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 400. [2021-12-14 14:40:27,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 309 states have (on average 1.5469255663430421) internal successors, (478), 313 states have internal predecessors, (478), 62 states have call successors, (62), 28 states have call predecessors, (62), 28 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2021-12-14 14:40:27,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 601 transitions. [2021-12-14 14:40:27,992 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 601 transitions. Word has length 130 [2021-12-14 14:40:27,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:27,993 INFO L470 AbstractCegarLoop]: Abstraction has 400 states and 601 transitions. [2021-12-14 14:40:27,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 14:40:27,994 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 601 transitions. [2021-12-14 14:40:27,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-12-14 14:40:27,996 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:27,996 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-14 14:40:28,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-14 14:40:28,219 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 [2021-12-14 14:40:28,220 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:28,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:28,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1725728239, now seen corresponding path program 1 times [2021-12-14 14:40:28,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:28,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687677590] [2021-12-14 14:40:28,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:28,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:28,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:28,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:28,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:28,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:28,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:28,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:28,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 14:40:28,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:28,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-14 14:40:28,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:28,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 14:40:28,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:28,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-14 14:40:28,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:28,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-14 14:40:28,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:28,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 14:40:28,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:28,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 14:40:28,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:28,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 14:40:28,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:28,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 14:40:28,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:28,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-14 14:40:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:28,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 14:40:28,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:28,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 14:40:28,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:28,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-14 14:40:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:28,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 14:40:28,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:28,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-14 14:40:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:28,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-14 14:40:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:28,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:40:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:28,377 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-12-14 14:40:28,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:28,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687677590] [2021-12-14 14:40:28,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687677590] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:40:28,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861321520] [2021-12-14 14:40:28,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:28,379 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:40:28,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:40:28,380 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) [2021-12-14 14:40:28,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-14 14:40:28,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:28,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-14 14:40:28,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:40:28,912 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-14 14:40:28,913 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 14:40:28,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861321520] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:28,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 14:40:28,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-14 14:40:28,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123372207] [2021-12-14 14:40:28,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:28,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 14:40:28,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:28,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 14:40:28,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-14 14:40:28,917 INFO L87 Difference]: Start difference. First operand 400 states and 601 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 14:40:28,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:28,965 INFO L93 Difference]: Finished difference Result 843 states and 1286 transitions. [2021-12-14 14:40:28,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 14:40:28,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2021-12-14 14:40:28,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:28,969 INFO L225 Difference]: With dead ends: 843 [2021-12-14 14:40:28,969 INFO L226 Difference]: Without dead ends: 470 [2021-12-14 14:40:28,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-14 14:40:28,972 INFO L933 BasicCegarLoop]: 619 mSDtfsCounter, 126 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1171 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 [2021-12-14 14:40:28,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 1171 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 14:40:28,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2021-12-14 14:40:28,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 462. [2021-12-14 14:40:28,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 357 states have (on average 1.5658263305322129) internal successors, (559), 361 states have internal predecessors, (559), 76 states have call successors, (76), 28 states have call predecessors, (76), 28 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2021-12-14 14:40:28,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 710 transitions. [2021-12-14 14:40:28,992 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 710 transitions. Word has length 155 [2021-12-14 14:40:28,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:28,992 INFO L470 AbstractCegarLoop]: Abstraction has 462 states and 710 transitions. [2021-12-14 14:40:28,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 14:40:28,993 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 710 transitions. [2021-12-14 14:40:28,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-14 14:40:28,995 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:28,996 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2021-12-14 14:40:29,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-14 14:40:29,203 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 [2021-12-14 14:40:29,204 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:29,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:29,204 INFO L85 PathProgramCache]: Analyzing trace with hash 2043173099, now seen corresponding path program 1 times [2021-12-14 14:40:29,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:29,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821528437] [2021-12-14 14:40:29,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:29,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:29,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:29,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:29,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:29,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:29,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:29,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:29,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:29,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 14:40:29,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:29,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-14 14:40:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:29,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 14:40:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:29,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-14 14:40:29,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:29,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-14 14:40:29,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:29,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 14:40:29,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:29,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 14:40:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:29,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-14 14:40:29,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:29,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 14:40:29,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:29,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-14 14:40:29,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:29,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-14 14:40:29,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:29,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-14 14:40:29,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:29,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-14 14:40:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:29,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:40:29,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:29,370 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-14 14:40:29,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:29,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821528437] [2021-12-14 14:40:29,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821528437] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:40:29,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307597070] [2021-12-14 14:40:29,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:29,372 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:40:29,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:40:29,374 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) [2021-12-14 14:40:29,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-14 14:40:29,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:29,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 1180 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-14 14:40:29,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:40:29,878 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-14 14:40:29,879 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 14:40:29,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307597070] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:29,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 14:40:29,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-14 14:40:29,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425807956] [2021-12-14 14:40:29,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:29,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 14:40:29,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:29,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 14:40:29,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-14 14:40:29,882 INFO L87 Difference]: Start difference. First operand 462 states and 710 transitions. Second operand has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-14 14:40:29,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:29,943 INFO L93 Difference]: Finished difference Result 915 states and 1410 transitions. [2021-12-14 14:40:29,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 14:40:29,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 137 [2021-12-14 14:40:29,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:29,946 INFO L225 Difference]: With dead ends: 915 [2021-12-14 14:40:29,946 INFO L226 Difference]: Without dead ends: 464 [2021-12-14 14:40:29,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:40:29,949 INFO L933 BasicCegarLoop]: 590 mSDtfsCounter, 144 mSDsluCounter, 1604 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 2194 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 [2021-12-14 14:40:29,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 2194 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 14:40:29,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2021-12-14 14:40:29,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2021-12-14 14:40:29,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 358 states have (on average 1.5642458100558658) internal successors, (560), 363 states have internal predecessors, (560), 76 states have call successors, (76), 28 states have call predecessors, (76), 29 states have return successors, (77), 74 states have call predecessors, (77), 75 states have call successors, (77) [2021-12-14 14:40:29,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 713 transitions. [2021-12-14 14:40:29,968 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 713 transitions. Word has length 137 [2021-12-14 14:40:29,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:29,969 INFO L470 AbstractCegarLoop]: Abstraction has 464 states and 713 transitions. [2021-12-14 14:40:29,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-14 14:40:29,969 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 713 transitions. [2021-12-14 14:40:29,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-14 14:40:29,971 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:29,972 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2021-12-14 14:40:29,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-14 14:40:30,184 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 [2021-12-14 14:40:30,185 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:30,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:30,185 INFO L85 PathProgramCache]: Analyzing trace with hash -2087348210, now seen corresponding path program 1 times [2021-12-14 14:40:30,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:30,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952721723] [2021-12-14 14:40:30,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:30,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:30,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:30,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:30,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:30,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:30,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:30,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:30,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:40:30,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:30,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-14 14:40:30,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:30,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-14 14:40:30,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:30,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 14:40:30,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:30,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 14:40:30,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:30,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-14 14:40:30,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:30,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 14:40:30,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:30,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-14 14:40:30,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:30,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 14:40:30,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:30,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 14:40:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:30,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 14:40:30,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:30,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-14 14:40:30,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:30,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 14:40:30,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:30,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:40:30,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:30,339 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-14 14:40:30,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:30,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952721723] [2021-12-14 14:40:30,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952721723] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:40:30,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144710091] [2021-12-14 14:40:30,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:30,340 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:40:30,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:40:30,342 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) [2021-12-14 14:40:30,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-14 14:40:30,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:30,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 1181 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-14 14:40:30,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:40:30,821 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-14 14:40:30,821 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 14:40:30,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1144710091] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:30,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 14:40:30,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-14 14:40:30,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739088324] [2021-12-14 14:40:30,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:30,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 14:40:30,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:30,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 14:40:30,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-12-14 14:40:30,824 INFO L87 Difference]: Start difference. First operand 464 states and 713 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-14 14:40:30,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:30,898 INFO L93 Difference]: Finished difference Result 917 states and 1415 transitions. [2021-12-14 14:40:30,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 14:40:30,899 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 138 [2021-12-14 14:40:30,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:30,902 INFO L225 Difference]: With dead ends: 917 [2021-12-14 14:40:30,902 INFO L226 Difference]: Without dead ends: 466 [2021-12-14 14:40:30,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-12-14 14:40:30,904 INFO L933 BasicCegarLoop]: 588 mSDtfsCounter, 143 mSDsluCounter, 1595 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 2183 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 [2021-12-14 14:40:30,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 2183 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 14:40:30,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2021-12-14 14:40:30,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2021-12-14 14:40:30,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 359 states have (on average 1.5626740947075208) internal successors, (561), 365 states have internal predecessors, (561), 76 states have call successors, (76), 28 states have call predecessors, (76), 30 states have return successors, (82), 74 states have call predecessors, (82), 75 states have call successors, (82) [2021-12-14 14:40:30,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 719 transitions. [2021-12-14 14:40:30,941 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 719 transitions. Word has length 138 [2021-12-14 14:40:30,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:30,942 INFO L470 AbstractCegarLoop]: Abstraction has 466 states and 719 transitions. [2021-12-14 14:40:30,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-14 14:40:30,943 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 719 transitions. [2021-12-14 14:40:30,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-12-14 14:40:30,945 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:30,945 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:40:30,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-14 14:40:31,155 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 [2021-12-14 14:40:31,156 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:31,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:31,156 INFO L85 PathProgramCache]: Analyzing trace with hash -600290276, now seen corresponding path program 1 times [2021-12-14 14:40:31,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:31,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316057342] [2021-12-14 14:40:31,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:31,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:31,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:31,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:31,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:31,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:31,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:31,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:40:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:31,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:40:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:31,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 14:40:31,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:31,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-14 14:40:31,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:31,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 14:40:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:31,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-14 14:40:31,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:31,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-14 14:40:31,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:31,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-14 14:40:31,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:31,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-14 14:40:31,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:31,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-14 14:40:31,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:31,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-14 14:40:31,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:31,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-14 14:40:31,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:31,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-14 14:40:31,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:31,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:40:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:31,284 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-14 14:40:31,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:31,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316057342] [2021-12-14 14:40:31,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316057342] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:31,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:40:31,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-14 14:40:31,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905573329] [2021-12-14 14:40:31,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:31,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 14:40:31,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:31,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 14:40:31,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-14 14:40:31,287 INFO L87 Difference]: Start difference. First operand 466 states and 719 transitions. Second operand has 9 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-14 14:40:32,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:32,943 INFO L93 Difference]: Finished difference Result 1008 states and 1574 transitions. [2021-12-14 14:40:32,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-14 14:40:32,944 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 139 [2021-12-14 14:40:32,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:32,950 INFO L225 Difference]: With dead ends: 1008 [2021-12-14 14:40:32,950 INFO L226 Difference]: Without dead ends: 565 [2021-12-14 14:40:32,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-14 14:40:32,954 INFO L933 BasicCegarLoop]: 629 mSDtfsCounter, 1488 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 1800 mSolverCounterSat, 513 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 1823 SdHoareTripleChecker+Invalid, 2313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 513 IncrementalHoareTripleChecker+Valid, 1800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:32,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1509 Valid, 1823 Invalid, 2313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [513 Valid, 1800 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-14 14:40:32,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2021-12-14 14:40:32,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 466. [2021-12-14 14:40:32,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 359 states have (on average 1.5626740947075208) internal successors, (561), 365 states have internal predecessors, (561), 76 states have call successors, (76), 28 states have call predecessors, (76), 30 states have return successors, (81), 74 states have call predecessors, (81), 75 states have call successors, (81) [2021-12-14 14:40:32,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 718 transitions. [2021-12-14 14:40:32,996 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 718 transitions. Word has length 139 [2021-12-14 14:40:32,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:32,997 INFO L470 AbstractCegarLoop]: Abstraction has 466 states and 718 transitions. [2021-12-14 14:40:32,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-14 14:40:32,997 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 718 transitions. [2021-12-14 14:40:33,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-12-14 14:40:33,001 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:33,001 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2021-12-14 14:40:33,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 14:40:33,001 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:33,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:33,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1989729251, now seen corresponding path program 2 times [2021-12-14 14:40:33,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:33,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814652686] [2021-12-14 14:40:33,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:33,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:33,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:33,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:33,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:33,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:33,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:33,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:33,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:40:33,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:33,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:40:33,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:33,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-14 14:40:33,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:33,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 14:40:33,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:33,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-14 14:40:33,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:33,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-14 14:40:33,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:33,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 14:40:33,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:33,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 14:40:33,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:33,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-14 14:40:33,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:33,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 14:40:33,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:33,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-14 14:40:33,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:33,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-14 14:40:33,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:33,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-14 14:40:33,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:33,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:40:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:33,139 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-14 14:40:33,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:33,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814652686] [2021-12-14 14:40:33,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814652686] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:33,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:40:33,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-14 14:40:33,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827051522] [2021-12-14 14:40:33,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:33,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 14:40:33,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:33,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 14:40:33,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-14 14:40:33,142 INFO L87 Difference]: Start difference. First operand 466 states and 718 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, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-14 14:40:34,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:34,713 INFO L93 Difference]: Finished difference Result 1010 states and 1577 transitions. [2021-12-14 14:40:34,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-14 14:40:34,713 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, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 140 [2021-12-14 14:40:34,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:34,717 INFO L225 Difference]: With dead ends: 1010 [2021-12-14 14:40:34,717 INFO L226 Difference]: Without dead ends: 567 [2021-12-14 14:40:34,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-14 14:40:34,721 INFO L933 BasicCegarLoop]: 612 mSDtfsCounter, 1522 mSDsluCounter, 1182 mSDsCounter, 0 mSdLazyCounter, 1742 mSolverCounterSat, 524 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 1794 SdHoareTripleChecker+Invalid, 2266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 524 IncrementalHoareTripleChecker+Valid, 1742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:34,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1544 Valid, 1794 Invalid, 2266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [524 Valid, 1742 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-14 14:40:34,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2021-12-14 14:40:34,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 468. [2021-12-14 14:40:34,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 360 states have (on average 1.5611111111111111) internal successors, (562), 367 states have internal predecessors, (562), 76 states have call successors, (76), 28 states have call predecessors, (76), 31 states have return successors, (83), 74 states have call predecessors, (83), 75 states have call successors, (83) [2021-12-14 14:40:34,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 721 transitions. [2021-12-14 14:40:34,752 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 721 transitions. Word has length 140 [2021-12-14 14:40:34,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:34,753 INFO L470 AbstractCegarLoop]: Abstraction has 468 states and 721 transitions. [2021-12-14 14:40:34,753 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, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-14 14:40:34,754 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 721 transitions. [2021-12-14 14:40:34,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-12-14 14:40:34,757 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:34,757 INFO L514 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:40:34,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-14 14:40:34,757 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:34,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:34,758 INFO L85 PathProgramCache]: Analyzing trace with hash 282948770, now seen corresponding path program 1 times [2021-12-14 14:40:34,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:34,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179846734] [2021-12-14 14:40:34,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:34,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:34,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:34,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:34,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:40:34,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:40:34,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:40:34,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-14 14:40:34,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-14 14:40:34,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 14:40:34,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-14 14:40:34,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 14:40:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-14 14:40:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 14:40:34,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-14 14:40:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-14 14:40:34,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-14 14:40:34,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-14 14:40:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 14:40:34,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-14 14:40:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:40:34,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:34,903 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-12-14 14:40:34,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:34,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179846734] [2021-12-14 14:40:34,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179846734] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:34,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:40:34,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-14 14:40:34,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635696424] [2021-12-14 14:40:34,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:34,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 14:40:34,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:34,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 14:40:34,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-14 14:40:34,907 INFO L87 Difference]: Start difference. First operand 468 states and 721 transitions. Second operand has 9 states, 8 states have (on average 11.75) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-14 14:40:36,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:36,501 INFO L93 Difference]: Finished difference Result 1010 states and 1576 transitions. [2021-12-14 14:40:36,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-14 14:40:36,502 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.75) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2021-12-14 14:40:36,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:36,505 INFO L225 Difference]: With dead ends: 1010 [2021-12-14 14:40:36,505 INFO L226 Difference]: Without dead ends: 567 [2021-12-14 14:40:36,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2021-12-14 14:40:36,507 INFO L933 BasicCegarLoop]: 617 mSDtfsCounter, 1517 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 1768 mSolverCounterSat, 521 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1537 SdHoareTripleChecker+Valid, 1806 SdHoareTripleChecker+Invalid, 2289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 521 IncrementalHoareTripleChecker+Valid, 1768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:36,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1537 Valid, 1806 Invalid, 2289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [521 Valid, 1768 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-14 14:40:36,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2021-12-14 14:40:36,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 468. [2021-12-14 14:40:36,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 360 states have (on average 1.5611111111111111) internal successors, (562), 367 states have internal predecessors, (562), 76 states have call successors, (76), 28 states have call predecessors, (76), 31 states have return successors, (83), 74 states have call predecessors, (83), 75 states have call successors, (83) [2021-12-14 14:40:36,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 721 transitions. [2021-12-14 14:40:36,530 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 721 transitions. Word has length 160 [2021-12-14 14:40:36,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:36,530 INFO L470 AbstractCegarLoop]: Abstraction has 468 states and 721 transitions. [2021-12-14 14:40:36,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.75) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-14 14:40:36,531 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 721 transitions. [2021-12-14 14:40:36,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-12-14 14:40:36,533 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:36,533 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:40:36,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-14 14:40:36,533 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:36,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:36,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1816560831, now seen corresponding path program 1 times [2021-12-14 14:40:36,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:36,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287459608] [2021-12-14 14:40:36,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:36,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:36,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:36,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:36,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:36,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:36,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:36,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:36,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:36,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:40:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:36,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:40:36,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:36,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:40:36,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:36,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-14 14:40:36,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:36,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-14 14:40:36,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:36,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 14:40:36,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:36,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-14 14:40:36,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:36,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 14:40:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:36,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-14 14:40:36,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:36,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-14 14:40:36,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:36,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 14:40:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:36,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-14 14:40:36,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:36,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 14:40:36,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:36,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:40:36,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:36,696 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-14 14:40:36,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:36,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287459608] [2021-12-14 14:40:36,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287459608] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:36,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:40:36,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-14 14:40:36,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49370549] [2021-12-14 14:40:36,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:36,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-14 14:40:36,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:36,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-14 14:40:36,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-14 14:40:36,699 INFO L87 Difference]: Start difference. First operand 468 states and 721 transitions. Second operand has 12 states, 11 states have (on average 8.181818181818182) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2021-12-14 14:40:38,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:38,849 INFO L93 Difference]: Finished difference Result 1008 states and 1571 transitions. [2021-12-14 14:40:38,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-14 14:40:38,850 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.181818181818182) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 141 [2021-12-14 14:40:38,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:38,853 INFO L225 Difference]: With dead ends: 1008 [2021-12-14 14:40:38,854 INFO L226 Difference]: Without dead ends: 567 [2021-12-14 14:40:38,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-14 14:40:38,858 INFO L933 BasicCegarLoop]: 624 mSDtfsCounter, 1591 mSDsluCounter, 1754 mSDsCounter, 0 mSdLazyCounter, 3341 mSolverCounterSat, 578 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1591 SdHoareTripleChecker+Valid, 2378 SdHoareTripleChecker+Invalid, 3919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 578 IncrementalHoareTripleChecker+Valid, 3341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:38,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1591 Valid, 2378 Invalid, 3919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [578 Valid, 3341 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-14 14:40:38,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2021-12-14 14:40:38,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 468. [2021-12-14 14:40:38,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 360 states have (on average 1.5611111111111111) internal successors, (562), 367 states have internal predecessors, (562), 76 states have call successors, (76), 28 states have call predecessors, (76), 31 states have return successors, (82), 74 states have call predecessors, (82), 75 states have call successors, (82) [2021-12-14 14:40:38,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 720 transitions. [2021-12-14 14:40:38,882 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 720 transitions. Word has length 141 [2021-12-14 14:40:38,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:38,883 INFO L470 AbstractCegarLoop]: Abstraction has 468 states and 720 transitions. [2021-12-14 14:40:38,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.181818181818182) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2021-12-14 14:40:38,884 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 720 transitions. [2021-12-14 14:40:38,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-14 14:40:38,886 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:38,886 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:40:38,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-14 14:40:38,887 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:38,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:38,887 INFO L85 PathProgramCache]: Analyzing trace with hash 281100800, now seen corresponding path program 1 times [2021-12-14 14:40:38,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:38,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121208029] [2021-12-14 14:40:38,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:38,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:38,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:38,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:38,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:38,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:38,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:40:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:38,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:40:38,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:38,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:40:38,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:39,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-14 14:40:39,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:39,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-14 14:40:39,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:39,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 14:40:39,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:39,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 14:40:39,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:39,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 14:40:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:39,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-14 14:40:39,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:39,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-14 14:40:39,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:39,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 14:40:39,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:39,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-14 14:40:39,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:39,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 14:40:39,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:39,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-14 14:40:39,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:39,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-14 14:40:39,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:39,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-14 14:40:39,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:39,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:40:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:39,056 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-14 14:40:39,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:39,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121208029] [2021-12-14 14:40:39,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121208029] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:39,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:40:39,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-14 14:40:39,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685972918] [2021-12-14 14:40:39,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:39,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-14 14:40:39,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:39,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-14 14:40:39,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-14 14:40:39,059 INFO L87 Difference]: Start difference. First operand 468 states and 720 transitions. Second operand has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 8 states have internal predecessors, (98), 4 states have call successors, (23), 6 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2021-12-14 14:40:41,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:41,086 INFO L93 Difference]: Finished difference Result 1010 states and 1577 transitions. [2021-12-14 14:40:41,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-14 14:40:41,087 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 8 states have internal predecessors, (98), 4 states have call successors, (23), 6 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 161 [2021-12-14 14:40:41,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:41,090 INFO L225 Difference]: With dead ends: 1010 [2021-12-14 14:40:41,090 INFO L226 Difference]: Without dead ends: 569 [2021-12-14 14:40:41,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-14 14:40:41,092 INFO L933 BasicCegarLoop]: 612 mSDtfsCounter, 1618 mSDsluCounter, 1755 mSDsCounter, 0 mSdLazyCounter, 3311 mSolverCounterSat, 560 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 2367 SdHoareTripleChecker+Invalid, 3871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 560 IncrementalHoareTripleChecker+Valid, 3311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:41,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1618 Valid, 2367 Invalid, 3871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [560 Valid, 3311 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-14 14:40:41,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2021-12-14 14:40:41,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 470. [2021-12-14 14:40:41,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 361 states have (on average 1.559556786703601) internal successors, (563), 369 states have internal predecessors, (563), 76 states have call successors, (76), 28 states have call predecessors, (76), 32 states have return successors, (87), 74 states have call predecessors, (87), 75 states have call successors, (87) [2021-12-14 14:40:41,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 726 transitions. [2021-12-14 14:40:41,116 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 726 transitions. Word has length 161 [2021-12-14 14:40:41,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:41,116 INFO L470 AbstractCegarLoop]: Abstraction has 470 states and 726 transitions. [2021-12-14 14:40:41,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 8 states have internal predecessors, (98), 4 states have call successors, (23), 6 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2021-12-14 14:40:41,116 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 726 transitions. [2021-12-14 14:40:41,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-12-14 14:40:41,119 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:41,119 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:40:41,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-14 14:40:41,119 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:41,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:41,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1573798266, now seen corresponding path program 1 times [2021-12-14 14:40:41,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:41,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140146144] [2021-12-14 14:40:41,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:41,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:41,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:41,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:41,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:41,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:41,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:41,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:40:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:41,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:40:41,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:41,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:40:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:41,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 14:40:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:41,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 14:40:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:41,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-14 14:40:41,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:41,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 14:40:41,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:41,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 14:40:41,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:41,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 14:40:41,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:41,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-14 14:40:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:41,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-14 14:40:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:41,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-14 14:40:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:41,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-14 14:40:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:41,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:40:41,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:41,223 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-14 14:40:41,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:41,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140146144] [2021-12-14 14:40:41,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140146144] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:40:41,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321860629] [2021-12-14 14:40:41,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:41,224 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:40:41,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:40:41,228 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) [2021-12-14 14:40:41,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-14 14:40:41,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:41,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 1186 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-14 14:40:41,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:40:41,670 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-14 14:40:41,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 14:40:41,897 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-14 14:40:41,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321860629] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 14:40:41,897 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 14:40:41,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2021-12-14 14:40:41,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262517792] [2021-12-14 14:40:41,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 14:40:41,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-14 14:40:41,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:41,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-14 14:40:41,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-14 14:40:41,899 INFO L87 Difference]: Start difference. First operand 470 states and 726 transitions. Second operand has 11 states, 11 states have (on average 11.909090909090908) internal successors, (131), 7 states have internal predecessors, (131), 2 states have call successors, (40), 6 states have call predecessors, (40), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-14 14:40:43,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:43,419 INFO L93 Difference]: Finished difference Result 1197 states and 1946 transitions. [2021-12-14 14:40:43,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-14 14:40:43,419 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.909090909090908) internal successors, (131), 7 states have internal predecessors, (131), 2 states have call successors, (40), 6 states have call predecessors, (40), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 143 [2021-12-14 14:40:43,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:43,425 INFO L225 Difference]: With dead ends: 1197 [2021-12-14 14:40:43,425 INFO L226 Difference]: Without dead ends: 986 [2021-12-14 14:40:43,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2021-12-14 14:40:43,427 INFO L933 BasicCegarLoop]: 727 mSDtfsCounter, 1806 mSDsluCounter, 1576 mSDsCounter, 0 mSdLazyCounter, 1674 mSolverCounterSat, 686 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1860 SdHoareTripleChecker+Valid, 2303 SdHoareTripleChecker+Invalid, 2360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 686 IncrementalHoareTripleChecker+Valid, 1674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:43,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1860 Valid, 2303 Invalid, 2360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [686 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-14 14:40:43,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2021-12-14 14:40:43,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 863. [2021-12-14 14:40:43,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 675 states have (on average 1.6237037037037036) internal successors, (1096), 683 states have internal predecessors, (1096), 155 states have call successors, (155), 28 states have call predecessors, (155), 32 states have return successors, (176), 153 states have call predecessors, (176), 154 states have call successors, (176) [2021-12-14 14:40:43,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1427 transitions. [2021-12-14 14:40:43,471 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1427 transitions. Word has length 143 [2021-12-14 14:40:43,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:43,472 INFO L470 AbstractCegarLoop]: Abstraction has 863 states and 1427 transitions. [2021-12-14 14:40:43,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.909090909090908) internal successors, (131), 7 states have internal predecessors, (131), 2 states have call successors, (40), 6 states have call predecessors, (40), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-14 14:40:43,472 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1427 transitions. [2021-12-14 14:40:43,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-12-14 14:40:43,477 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:43,477 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-12-14 14:40:43,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-14 14:40:43,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:40:43,692 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:43,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:43,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1035912803, now seen corresponding path program 1 times [2021-12-14 14:40:43,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:43,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586861612] [2021-12-14 14:40:43,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:43,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:43,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:43,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:43,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:43,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:43,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:43,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:43,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:43,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:40:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:43,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:40:43,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:43,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:40:43,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:43,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 14:40:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:43,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-14 14:40:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:43,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-14 14:40:43,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:43,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 14:40:43,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:43,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 14:40:43,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:43,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 14:40:43,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:43,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-14 14:40:43,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:43,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-14 14:40:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:43,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 14:40:43,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:43,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-14 14:40:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:43,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:40:43,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:43,836 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-14 14:40:43,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:43,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586861612] [2021-12-14 14:40:43,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586861612] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:43,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:40:43,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:40:43,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691404176] [2021-12-14 14:40:43,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:43,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:40:43,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:43,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:40:43,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:40:43,839 INFO L87 Difference]: Start difference. First operand 863 states and 1427 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, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 14:40:44,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:44,955 INFO L93 Difference]: Finished difference Result 2155 states and 3651 transitions. [2021-12-14 14:40:44,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:40:44,956 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, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 149 [2021-12-14 14:40:44,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:44,962 INFO L225 Difference]: With dead ends: 2155 [2021-12-14 14:40:44,962 INFO L226 Difference]: Without dead ends: 1360 [2021-12-14 14:40:44,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:40:44,966 INFO L933 BasicCegarLoop]: 644 mSDtfsCounter, 1525 mSDsluCounter, 846 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 617 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1545 SdHoareTripleChecker+Valid, 1490 SdHoareTripleChecker+Invalid, 1502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 617 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:44,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1545 Valid, 1490 Invalid, 1502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [617 Valid, 885 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-14 14:40:44,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1360 states. [2021-12-14 14:40:45,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1360 to 1253. [2021-12-14 14:40:45,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1253 states, 986 states have (on average 1.6389452332657202) internal successors, (1616), 994 states have internal predecessors, (1616), 234 states have call successors, (234), 28 states have call predecessors, (234), 32 states have return successors, (265), 232 states have call predecessors, (265), 233 states have call successors, (265) [2021-12-14 14:40:45,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 2115 transitions. [2021-12-14 14:40:45,030 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 2115 transitions. Word has length 149 [2021-12-14 14:40:45,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:45,031 INFO L470 AbstractCegarLoop]: Abstraction has 1253 states and 2115 transitions. [2021-12-14 14:40:45,031 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, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 14:40:45,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 2115 transitions. [2021-12-14 14:40:45,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-12-14 14:40:45,038 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:45,038 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-12-14 14:40:45,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-14 14:40:45,038 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:45,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:45,039 INFO L85 PathProgramCache]: Analyzing trace with hash -596877221, now seen corresponding path program 1 times [2021-12-14 14:40:45,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:45,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623164235] [2021-12-14 14:40:45,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:45,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:45,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:45,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:45,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:45,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:45,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:45,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:40:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:45,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:40:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:45,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:40:45,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:45,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 14:40:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:45,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 14:40:45,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:45,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 14:40:45,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:45,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 14:40:45,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:45,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-14 14:40:45,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:45,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-14 14:40:45,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:45,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-14 14:40:45,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:45,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-14 14:40:45,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:45,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-14 14:40:45,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:45,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-14 14:40:45,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:45,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:40:45,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:45,161 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-14 14:40:45,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:45,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623164235] [2021-12-14 14:40:45,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623164235] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:45,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:40:45,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:40:45,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569498079] [2021-12-14 14:40:45,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:45,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:40:45,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:45,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:40:45,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:40:45,165 INFO L87 Difference]: Start difference. First operand 1253 states and 2115 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, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 14:40:46,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:46,362 INFO L93 Difference]: Finished difference Result 3104 states and 5325 transitions. [2021-12-14 14:40:46,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:40:46,363 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, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 150 [2021-12-14 14:40:46,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:46,374 INFO L225 Difference]: With dead ends: 3104 [2021-12-14 14:40:46,374 INFO L226 Difference]: Without dead ends: 1972 [2021-12-14 14:40:46,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:40:46,379 INFO L933 BasicCegarLoop]: 643 mSDtfsCounter, 1523 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 587 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1541 SdHoareTripleChecker+Valid, 1499 SdHoareTripleChecker+Invalid, 1468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 587 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:46,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1541 Valid, 1499 Invalid, 1468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [587 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-14 14:40:46,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1972 states. [2021-12-14 14:40:46,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1972 to 1865. [2021-12-14 14:40:46,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1865 states, 1479 states have (on average 1.6490872210953347) internal successors, (2439), 1487 states have internal predecessors, (2439), 353 states have call successors, (353), 28 states have call predecessors, (353), 32 states have return successors, (384), 351 states have call predecessors, (384), 352 states have call successors, (384) [2021-12-14 14:40:46,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1865 states to 1865 states and 3176 transitions. [2021-12-14 14:40:46,495 INFO L78 Accepts]: Start accepts. Automaton has 1865 states and 3176 transitions. Word has length 150 [2021-12-14 14:40:46,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:46,496 INFO L470 AbstractCegarLoop]: Abstraction has 1865 states and 3176 transitions. [2021-12-14 14:40:46,496 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, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 14:40:46,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1865 states and 3176 transitions. [2021-12-14 14:40:46,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-12-14 14:40:46,508 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:46,509 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-12-14 14:40:46,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-14 14:40:46,509 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:46,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:46,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1037341883, now seen corresponding path program 1 times [2021-12-14 14:40:46,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:46,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843562993] [2021-12-14 14:40:46,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:46,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:46,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:46,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:46,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:46,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:46,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:46,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:46,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:46,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:40:46,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:46,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:40:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:46,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:40:46,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:46,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 14:40:46,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:46,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 14:40:46,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:46,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 14:40:46,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:46,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 14:40:46,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:46,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-14 14:40:46,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:46,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 14:40:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:46,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-14 14:40:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:46,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-14 14:40:46,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:46,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-14 14:40:46,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:46,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-14 14:40:46,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:46,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:40:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:46,621 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-14 14:40:46,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:46,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843562993] [2021-12-14 14:40:46,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843562993] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:46,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:40:46,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:40:46,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371621669] [2021-12-14 14:40:46,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:46,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:40:46,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:46,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:40:46,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:40:46,624 INFO L87 Difference]: Start difference. First operand 1865 states and 3176 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 14:40:47,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:47,794 INFO L93 Difference]: Finished difference Result 4529 states and 7859 transitions. [2021-12-14 14:40:47,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:40:47,795 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 151 [2021-12-14 14:40:47,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:47,812 INFO L225 Difference]: With dead ends: 4529 [2021-12-14 14:40:47,813 INFO L226 Difference]: Without dead ends: 2910 [2021-12-14 14:40:47,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:40:47,820 INFO L933 BasicCegarLoop]: 625 mSDtfsCounter, 1548 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 592 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1566 SdHoareTripleChecker+Valid, 1457 SdHoareTripleChecker+Invalid, 1465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 592 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:47,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1566 Valid, 1457 Invalid, 1465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [592 Valid, 873 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-14 14:40:47,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2910 states. [2021-12-14 14:40:47,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2910 to 2803. [2021-12-14 14:40:47,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2803 states, 2255 states have (on average 1.6572062084257206) internal successors, (3737), 2263 states have internal predecessors, (3737), 515 states have call successors, (515), 28 states have call predecessors, (515), 32 states have return successors, (562), 513 states have call predecessors, (562), 514 states have call successors, (562) [2021-12-14 14:40:47,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2803 states to 2803 states and 4814 transitions. [2021-12-14 14:40:47,963 INFO L78 Accepts]: Start accepts. Automaton has 2803 states and 4814 transitions. Word has length 151 [2021-12-14 14:40:47,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:47,964 INFO L470 AbstractCegarLoop]: Abstraction has 2803 states and 4814 transitions. [2021-12-14 14:40:47,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 14:40:47,964 INFO L276 IsEmpty]: Start isEmpty. Operand 2803 states and 4814 transitions. [2021-12-14 14:40:47,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-12-14 14:40:47,981 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:47,981 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-12-14 14:40:47,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-14 14:40:47,982 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:47,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:47,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1284625468, now seen corresponding path program 1 times [2021-12-14 14:40:47,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:47,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762664322] [2021-12-14 14:40:47,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:47,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:48,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:48,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:48,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:48,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:48,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:48,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:48,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:48,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:40:48,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:48,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:40:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:48,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:40:48,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:48,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-14 14:40:48,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:48,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-14 14:40:48,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:48,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 14:40:48,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:48,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 14:40:48,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:48,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-14 14:40:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:48,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-14 14:40:48,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:48,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-14 14:40:48,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:48,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 14:40:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:48,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 14:40:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:48,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 14:40:48,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:48,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:40:48,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:48,085 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-14 14:40:48,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:48,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762664322] [2021-12-14 14:40:48,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762664322] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:48,085 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:40:48,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:40:48,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202118397] [2021-12-14 14:40:48,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:48,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:40:48,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:48,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:40:48,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:40:48,088 INFO L87 Difference]: Start difference. First operand 2803 states and 4814 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 14:40:49,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:49,292 INFO L93 Difference]: Finished difference Result 6778 states and 11868 transitions. [2021-12-14 14:40:49,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:40:49,293 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 152 [2021-12-14 14:40:49,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:49,318 INFO L225 Difference]: With dead ends: 6778 [2021-12-14 14:40:49,318 INFO L226 Difference]: Without dead ends: 4425 [2021-12-14 14:40:49,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:40:49,328 INFO L933 BasicCegarLoop]: 643 mSDtfsCounter, 1509 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 886 mSolverCounterSat, 576 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1528 SdHoareTripleChecker+Valid, 1478 SdHoareTripleChecker+Invalid, 1462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 576 IncrementalHoareTripleChecker+Valid, 886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:49,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1528 Valid, 1478 Invalid, 1462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [576 Valid, 886 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-14 14:40:49,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4425 states. [2021-12-14 14:40:49,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4425 to 4318. [2021-12-14 14:40:49,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4318 states, 3525 states have (on average 1.6629787234042552) internal successors, (5862), 3533 states have internal predecessors, (5862), 760 states have call successors, (760), 28 states have call predecessors, (760), 32 states have return successors, (833), 758 states have call predecessors, (833), 759 states have call successors, (833) [2021-12-14 14:40:49,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4318 states to 4318 states and 7455 transitions. [2021-12-14 14:40:49,593 INFO L78 Accepts]: Start accepts. Automaton has 4318 states and 7455 transitions. Word has length 152 [2021-12-14 14:40:49,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:49,594 INFO L470 AbstractCegarLoop]: Abstraction has 4318 states and 7455 transitions. [2021-12-14 14:40:49,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 14:40:49,594 INFO L276 IsEmpty]: Start isEmpty. Operand 4318 states and 7455 transitions. [2021-12-14 14:40:49,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-12-14 14:40:49,614 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:49,614 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-12-14 14:40:49,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-14 14:40:49,616 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:49,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:49,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1246284223, now seen corresponding path program 1 times [2021-12-14 14:40:49,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:49,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276388237] [2021-12-14 14:40:49,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:49,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:49,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:49,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:49,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:49,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:49,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:49,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:49,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:49,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:40:49,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:49,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:40:49,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:49,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:40:49,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:49,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-14 14:40:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:49,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 14:40:49,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:49,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-14 14:40:49,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:49,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 14:40:49,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:49,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 14:40:49,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:49,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-14 14:40:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:49,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-14 14:40:49,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:49,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-14 14:40:49,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:49,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 14:40:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:49,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-14 14:40:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:49,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:40:49,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:49,717 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-14 14:40:49,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:49,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276388237] [2021-12-14 14:40:49,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276388237] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:49,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:40:49,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:40:49,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297297835] [2021-12-14 14:40:49,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:49,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:40:49,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:49,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:40:49,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:40:49,719 INFO L87 Difference]: Start difference. First operand 4318 states and 7455 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, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 14:40:51,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:51,105 INFO L93 Difference]: Finished difference Result 10794 states and 18980 transitions. [2021-12-14 14:40:51,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:40:51,106 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, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 153 [2021-12-14 14:40:51,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:51,143 INFO L225 Difference]: With dead ends: 10794 [2021-12-14 14:40:51,143 INFO L226 Difference]: Without dead ends: 7158 [2021-12-14 14:40:51,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:40:51,156 INFO L933 BasicCegarLoop]: 667 mSDtfsCounter, 1481 mSDsluCounter, 871 mSDsCounter, 0 mSdLazyCounter, 922 mSolverCounterSat, 573 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1499 SdHoareTripleChecker+Valid, 1538 SdHoareTripleChecker+Invalid, 1495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 573 IncrementalHoareTripleChecker+Valid, 922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:51,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1499 Valid, 1538 Invalid, 1495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [573 Valid, 922 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-14 14:40:51,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7158 states. [2021-12-14 14:40:51,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7158 to 7051. [2021-12-14 14:40:51,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7051 states, 5765 states have (on average 1.6594969644405897) internal successors, (9567), 5773 states have internal predecessors, (9567), 1253 states have call successors, (1253), 28 states have call predecessors, (1253), 32 states have return successors, (1370), 1251 states have call predecessors, (1370), 1252 states have call successors, (1370) [2021-12-14 14:40:51,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7051 states to 7051 states and 12190 transitions. [2021-12-14 14:40:51,604 INFO L78 Accepts]: Start accepts. Automaton has 7051 states and 12190 transitions. Word has length 153 [2021-12-14 14:40:51,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:51,605 INFO L470 AbstractCegarLoop]: Abstraction has 7051 states and 12190 transitions. [2021-12-14 14:40:51,606 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, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 14:40:51,606 INFO L276 IsEmpty]: Start isEmpty. Operand 7051 states and 12190 transitions. [2021-12-14 14:40:51,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-12-14 14:40:51,638 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:51,638 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-12-14 14:40:51,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-14 14:40:51,638 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:51,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:51,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1473546944, now seen corresponding path program 1 times [2021-12-14 14:40:51,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:51,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952640579] [2021-12-14 14:40:51,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:51,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:51,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:51,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:51,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:51,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:51,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:51,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:51,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:51,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:40:51,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:51,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:40:51,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:51,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:40:51,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:51,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-14 14:40:51,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:51,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 14:40:51,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:51,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-14 14:40:51,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:51,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-14 14:40:51,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:51,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-14 14:40:51,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:51,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-14 14:40:51,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:51,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 14:40:51,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:51,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-14 14:40:51,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:51,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-14 14:40:51,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:51,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-14 14:40:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:51,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:40:51,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:51,738 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-14 14:40:51,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:51,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952640579] [2021-12-14 14:40:51,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952640579] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:51,739 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:40:51,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:40:51,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296292747] [2021-12-14 14:40:51,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:51,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:40:51,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:51,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:40:51,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:40:51,741 INFO L87 Difference]: Start difference. First operand 7051 states and 12190 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, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 14:40:53,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:53,125 INFO L93 Difference]: Finished difference Result 17934 states and 31552 transitions. [2021-12-14 14:40:53,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:40:53,125 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, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 154 [2021-12-14 14:40:53,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:53,169 INFO L225 Difference]: With dead ends: 17934 [2021-12-14 14:40:53,169 INFO L226 Difference]: Without dead ends: 11942 [2021-12-14 14:40:53,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:40:53,189 INFO L933 BasicCegarLoop]: 665 mSDtfsCounter, 1465 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 1482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 567 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:53,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1484 Valid, 1523 Invalid, 1482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [567 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-14 14:40:53,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11942 states. [2021-12-14 14:40:53,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11942 to 11835. [2021-12-14 14:40:53,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11835 states, 9727 states have (on average 1.6598128919502415) internal successors, (16145), 9735 states have internal predecessors, (16145), 2075 states have call successors, (2075), 28 states have call predecessors, (2075), 32 states have return successors, (2270), 2073 states have call predecessors, (2270), 2074 states have call successors, (2270) [2021-12-14 14:40:53,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11835 states to 11835 states and 20490 transitions. [2021-12-14 14:40:53,860 INFO L78 Accepts]: Start accepts. Automaton has 11835 states and 20490 transitions. Word has length 154 [2021-12-14 14:40:53,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:53,861 INFO L470 AbstractCegarLoop]: Abstraction has 11835 states and 20490 transitions. [2021-12-14 14:40:53,861 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, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 14:40:53,861 INFO L276 IsEmpty]: Start isEmpty. Operand 11835 states and 20490 transitions. [2021-12-14 14:40:53,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-12-14 14:40:53,906 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:53,907 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-12-14 14:40:53,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-14 14:40:53,907 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:53,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:53,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1060455165, now seen corresponding path program 1 times [2021-12-14 14:40:53,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:53,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500774172] [2021-12-14 14:40:53,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:53,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:53,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:54,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:54,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:54,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:40:54,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:40:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:40:54,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 14:40:54,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 14:40:54,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-14 14:40:54,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-14 14:40:54,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 14:40:54,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 14:40:54,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-14 14:40:54,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 14:40:54,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-14 14:40:54,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-14 14:40:54,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:40:54,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:54,075 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-14 14:40:54,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:54,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500774172] [2021-12-14 14:40:54,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500774172] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:54,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:40:54,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:40:54,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717442998] [2021-12-14 14:40:54,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:54,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:40:54,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:54,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:40:54,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:40:54,078 INFO L87 Difference]: Start difference. First operand 11835 states and 20490 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 14:40:55,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:55,702 INFO L93 Difference]: Finished difference Result 28367 states and 49677 transitions. [2021-12-14 14:40:55,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:40:55,702 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 155 [2021-12-14 14:40:55,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:55,781 INFO L225 Difference]: With dead ends: 28367 [2021-12-14 14:40:55,782 INFO L226 Difference]: Without dead ends: 18535 [2021-12-14 14:40:55,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:40:55,810 INFO L933 BasicCegarLoop]: 652 mSDtfsCounter, 1478 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 560 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 1470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 560 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:55,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1496 Valid, 1463 Invalid, 1470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [560 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-14 14:40:55,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18535 states. [2021-12-14 14:40:56,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18535 to 18428. [2021-12-14 14:40:56,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18428 states, 15117 states have (on average 1.6346497320897004) internal successors, (24711), 15125 states have internal predecessors, (24711), 3278 states have call successors, (3278), 28 states have call predecessors, (3278), 32 states have return successors, (3617), 3276 states have call predecessors, (3617), 3277 states have call successors, (3617) [2021-12-14 14:40:56,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18428 states to 18428 states and 31606 transitions. [2021-12-14 14:40:56,716 INFO L78 Accepts]: Start accepts. Automaton has 18428 states and 31606 transitions. Word has length 155 [2021-12-14 14:40:56,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:40:56,716 INFO L470 AbstractCegarLoop]: Abstraction has 18428 states and 31606 transitions. [2021-12-14 14:40:56,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 14:40:56,717 INFO L276 IsEmpty]: Start isEmpty. Operand 18428 states and 31606 transitions. [2021-12-14 14:40:56,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-14 14:40:56,907 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:40:56,907 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:40:56,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-14 14:40:56,908 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:40:56,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:40:56,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1668359068, now seen corresponding path program 1 times [2021-12-14 14:40:56,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:40:56,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187910362] [2021-12-14 14:40:56,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:40:56,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:40:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:56,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:40:56,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:56,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:40:56,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:56,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:40:56,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:56,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:40:56,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:56,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:40:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:40:57,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 14:40:57,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-14 14:40:57,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-14 14:40:57,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-14 14:40:57,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 14:40:57,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 14:40:57,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-14 14:40:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 14:40:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 14:40:57,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-14 14:40:57,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-14 14:40:57,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-14 14:40:57,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-14 14:40:57,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:40:57,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:40:57,040 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-14 14:40:57,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:40:57,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187910362] [2021-12-14 14:40:57,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187910362] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:40:57,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:40:57,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:40:57,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808277150] [2021-12-14 14:40:57,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:40:57,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:40:57,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:40:57,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:40:57,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:40:57,043 INFO L87 Difference]: Start difference. First operand 18428 states and 31606 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 14:40:59,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:40:59,132 INFO L93 Difference]: Finished difference Result 48789 states and 85181 transitions. [2021-12-14 14:40:59,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:40:59,132 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 175 [2021-12-14 14:40:59,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:40:59,282 INFO L225 Difference]: With dead ends: 48789 [2021-12-14 14:40:59,282 INFO L226 Difference]: Without dead ends: 32971 [2021-12-14 14:40:59,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:40:59,326 INFO L933 BasicCegarLoop]: 632 mSDtfsCounter, 1528 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 585 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 1467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 585 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-14 14:40:59,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1547 Valid, 1464 Invalid, 1467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [585 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-14 14:40:59,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32971 states. [2021-12-14 14:41:00,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32971 to 32864. [2021-12-14 14:41:00,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32864 states, 27103 states have (on average 1.6314799099730657) internal successors, (44218), 27111 states have internal predecessors, (44218), 5728 states have call successors, (5728), 28 states have call predecessors, (5728), 32 states have return successors, (6341), 5726 states have call predecessors, (6341), 5727 states have call successors, (6341) [2021-12-14 14:41:01,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32864 states to 32864 states and 56287 transitions. [2021-12-14 14:41:01,010 INFO L78 Accepts]: Start accepts. Automaton has 32864 states and 56287 transitions. Word has length 175 [2021-12-14 14:41:01,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:41:01,010 INFO L470 AbstractCegarLoop]: Abstraction has 32864 states and 56287 transitions. [2021-12-14 14:41:01,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 14:41:01,011 INFO L276 IsEmpty]: Start isEmpty. Operand 32864 states and 56287 transitions. [2021-12-14 14:41:01,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-12-14 14:41:01,077 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:41:01,077 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 14:41:01,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-14 14:41:01,077 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:41:01,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:41:01,078 INFO L85 PathProgramCache]: Analyzing trace with hash -137691448, now seen corresponding path program 1 times [2021-12-14 14:41:01,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:41:01,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701326899] [2021-12-14 14:41:01,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:41:01,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:41:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:01,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:41:01,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:01,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:41:01,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:01,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:41:01,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:01,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:41:01,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:01,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:41:01,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:01,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:41:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:01,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-14 14:41:01,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:01,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 14:41:01,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:01,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 14:41:01,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:01,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-14 14:41:01,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:01,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-14 14:41:01,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:01,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-14 14:41:01,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:01,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-14 14:41:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:01,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-14 14:41:01,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:01,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 14:41:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:01,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 14:41:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:01,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-14 14:41:01,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:01,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-14 14:41:01,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:01,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 14:41:01,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:01,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:41:01,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:01,213 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-14 14:41:01,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:41:01,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701326899] [2021-12-14 14:41:01,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701326899] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:41:01,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:41:01,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:41:01,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478826715] [2021-12-14 14:41:01,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:41:01,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:41:01,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:41:01,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:41:01,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:41:01,216 INFO L87 Difference]: Start difference. First operand 32864 states and 56287 transitions. Second operand has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 14:41:04,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:41:04,293 INFO L93 Difference]: Finished difference Result 89686 states and 155815 transitions. [2021-12-14 14:41:04,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:41:04,293 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 176 [2021-12-14 14:41:04,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:41:04,535 INFO L225 Difference]: With dead ends: 89686 [2021-12-14 14:41:04,535 INFO L226 Difference]: Without dead ends: 60308 [2021-12-14 14:41:04,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:41:04,635 INFO L933 BasicCegarLoop]: 662 mSDtfsCounter, 1463 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 561 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 1480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 561 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-14 14:41:04,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1482 Valid, 1521 Invalid, 1480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [561 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-14 14:41:04,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60308 states. [2021-12-14 14:41:07,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60308 to 60201. [2021-12-14 14:41:07,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60201 states, 49927 states have (on average 1.6271957057303663) internal successors, (81241), 49935 states have internal predecessors, (81241), 10241 states have call successors, (10241), 28 states have call predecessors, (10241), 32 states have return successors, (11386), 10239 states have call predecessors, (11386), 10240 states have call successors, (11386) [2021-12-14 14:41:07,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60201 states to 60201 states and 102868 transitions. [2021-12-14 14:41:07,796 INFO L78 Accepts]: Start accepts. Automaton has 60201 states and 102868 transitions. Word has length 176 [2021-12-14 14:41:07,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:41:07,796 INFO L470 AbstractCegarLoop]: Abstraction has 60201 states and 102868 transitions. [2021-12-14 14:41:07,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 14:41:07,797 INFO L276 IsEmpty]: Start isEmpty. Operand 60201 states and 102868 transitions. [2021-12-14 14:41:07,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-14 14:41:07,880 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:41:07,881 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-12-14 14:41:07,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-14 14:41:07,881 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:41:07,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:41:07,882 INFO L85 PathProgramCache]: Analyzing trace with hash -163111263, now seen corresponding path program 1 times [2021-12-14 14:41:07,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:41:07,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236908839] [2021-12-14 14:41:07,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:41:07,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:41:07,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:41:07,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:41:07,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:41:07,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:41:07,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:41:07,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:41:07,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 14:41:07,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-14 14:41:07,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 14:41:07,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 14:41:07,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-14 14:41:07,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 14:41:07,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 14:41:07,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 14:41:07,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-14 14:41:07,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-14 14:41:07,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 14:41:07,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:41:07,992 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-14 14:41:07,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:41:07,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236908839] [2021-12-14 14:41:07,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236908839] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:41:07,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:41:07,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:41:07,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585925493] [2021-12-14 14:41:07,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:41:07,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:41:07,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:41:07,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:41:07,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:41:07,995 INFO L87 Difference]: Start difference. First operand 60201 states and 102868 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, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-14 14:41:12,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:41:12,235 INFO L93 Difference]: Finished difference Result 112777 states and 196393 transitions. [2021-12-14 14:41:12,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:41:12,236 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, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 158 [2021-12-14 14:41:12,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:41:12,752 INFO L225 Difference]: With dead ends: 112777 [2021-12-14 14:41:12,753 INFO L226 Difference]: Without dead ends: 112566 [2021-12-14 14:41:12,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-14 14:41:12,816 INFO L933 BasicCegarLoop]: 661 mSDtfsCounter, 1475 mSDsluCounter, 865 mSDsCounter, 0 mSdLazyCounter, 923 mSolverCounterSat, 577 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 1526 SdHoareTripleChecker+Invalid, 1500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 577 IncrementalHoareTripleChecker+Valid, 923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-14 14:41:12,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1493 Valid, 1526 Invalid, 1500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [577 Valid, 923 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-14 14:41:12,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112566 states.