./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec8_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec8_product34.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 9b6f1572bb543b70f7bd76f4bd7f000d1e6bbc46b09feb0ab48e04376b774bb9 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 15:04:11,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 15:04:11,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 15:04:11,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 15:04:11,949 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 15:04:11,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 15:04:11,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 15:04:11,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 15:04:11,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 15:04:11,961 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 15:04:11,962 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 15:04:11,963 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 15:04:11,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 15:04:11,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 15:04:11,967 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 15:04:11,971 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 15:04:11,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 15:04:11,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 15:04:11,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 15:04:11,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 15:04:11,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 15:04:11,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 15:04:11,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 15:04:11,985 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 15:04:11,991 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 15:04:11,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 15:04:11,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 15:04:11,993 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 15:04:11,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 15:04:11,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 15:04:11,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 15:04:11,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 15:04:11,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 15:04:11,998 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 15:04:11,999 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 15:04:11,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 15:04:12,000 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 15:04:12,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 15:04:12,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 15:04:12,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 15:04:12,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 15:04:12,003 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 15:04:12,033 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 15:04:12,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 15:04:12,034 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 15:04:12,034 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 15:04:12,035 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 15:04:12,035 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 15:04:12,036 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 15:04:12,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 15:04:12,036 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 15:04:12,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 15:04:12,037 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 15:04:12,038 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 15:04:12,038 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 15:04:12,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 15:04:12,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 15:04:12,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 15:04:12,039 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 15:04:12,039 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 15:04:12,039 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 15:04:12,039 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 15:04:12,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 15:04:12,040 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 15:04:12,040 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 15:04:12,040 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 15:04:12,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:04:12,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 15:04:12,041 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 15:04:12,041 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 15:04:12,041 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 15:04:12,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 15:04:12,041 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 15:04:12,041 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 15:04:12,042 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 15:04:12,042 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 15:04:12,042 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b6f1572bb543b70f7bd76f4bd7f000d1e6bbc46b09feb0ab48e04376b774bb9 [2021-12-17 15:04:12,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 15:04:12,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 15:04:12,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 15:04:12,304 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 15:04:12,305 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 15:04:12,306 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec8_product34.cil.c [2021-12-17 15:04:12,389 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a32fe953/60a904bf0e504e5888ea2df145ab84c3/FLAG4d18bd535 [2021-12-17 15:04:12,932 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 15:04:12,933 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product34.cil.c [2021-12-17 15:04:12,954 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a32fe953/60a904bf0e504e5888ea2df145ab84c3/FLAG4d18bd535 [2021-12-17 15:04:13,203 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a32fe953/60a904bf0e504e5888ea2df145ab84c3 [2021-12-17 15:04:13,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 15:04:13,207 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 15:04:13,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 15:04:13,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 15:04:13,212 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 15:04:13,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:04:13" (1/1) ... [2021-12-17 15:04:13,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e0e191e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:04:13, skipping insertion in model container [2021-12-17 15:04:13,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:04:13" (1/1) ... [2021-12-17 15:04:13,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 15:04:13,293 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 15:04:13,602 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_spec8_product34.cil.c[28285,28298] [2021-12-17 15:04:13,840 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:04:13,850 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 15:04:13,879 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_spec8_product34.cil.c[28285,28298] [2021-12-17 15:04:13,915 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:04:13,955 INFO L208 MainTranslator]: Completed translation [2021-12-17 15:04:13,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:04:13 WrapperNode [2021-12-17 15:04:13,956 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 15:04:13,957 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 15:04:13,957 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 15:04:13,958 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 15:04:13,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:04:13" (1/1) ... [2021-12-17 15:04:13,999 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:04:13" (1/1) ... [2021-12-17 15:04:14,082 INFO L137 Inliner]: procedures = 135, calls = 242, calls flagged for inlining = 63, calls inlined = 60, statements flattened = 1110 [2021-12-17 15:04:14,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 15:04:14,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 15:04:14,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 15:04:14,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 15:04:14,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:04:13" (1/1) ... [2021-12-17 15:04:14,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:04:13" (1/1) ... [2021-12-17 15:04:14,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:04:13" (1/1) ... [2021-12-17 15:04:14,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:04:13" (1/1) ... [2021-12-17 15:04:14,126 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:04:13" (1/1) ... [2021-12-17 15:04:14,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:04:13" (1/1) ... [2021-12-17 15:04:14,145 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:04:13" (1/1) ... [2021-12-17 15:04:14,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 15:04:14,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 15:04:14,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 15:04:14,175 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 15:04:14,176 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:04:13" (1/1) ... [2021-12-17 15:04:14,182 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:04:14,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:04:14,209 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) [2021-12-17 15:04:14,221 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 [2021-12-17 15:04:14,256 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-12-17 15:04:14,257 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-12-17 15:04:14,257 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-17 15:04:14,257 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-17 15:04:14,257 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-12-17 15:04:14,257 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-12-17 15:04:14,257 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-17 15:04:14,259 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-17 15:04:14,259 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-12-17 15:04:14,259 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-12-17 15:04:14,259 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-17 15:04:14,260 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-17 15:04:14,260 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-17 15:04:14,260 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-17 15:04:14,260 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-12-17 15:04:14,260 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-12-17 15:04:14,260 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-17 15:04:14,260 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-17 15:04:14,261 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-12-17 15:04:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-12-17 15:04:14,261 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-12-17 15:04:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-12-17 15:04:14,261 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-17 15:04:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-17 15:04:14,261 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-17 15:04:14,262 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-12-17 15:04:14,262 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-12-17 15:04:14,262 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-17 15:04:14,262 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-17 15:04:14,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 15:04:14,262 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-12-17 15:04:14,262 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-12-17 15:04:14,263 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2021-12-17 15:04:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2021-12-17 15:04:14,263 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-17 15:04:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-17 15:04:14,263 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-17 15:04:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-17 15:04:14,264 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-17 15:04:14,264 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-17 15:04:14,264 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-17 15:04:14,264 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-17 15:04:14,264 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2021-12-17 15:04:14,264 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2021-12-17 15:04:14,264 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2021-12-17 15:04:14,265 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2021-12-17 15:04:14,265 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-17 15:04:14,265 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-17 15:04:14,265 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-12-17 15:04:14,265 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-12-17 15:04:14,265 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-17 15:04:14,265 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-17 15:04:14,266 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-17 15:04:14,266 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-17 15:04:14,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 15:04:14,267 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-17 15:04:14,268 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-17 15:04:14,268 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-17 15:04:14,268 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-17 15:04:14,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 15:04:14,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 15:04:14,541 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 15:04:14,543 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 15:04:15,254 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 15:04:15,269 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 15:04:15,269 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-17 15:04:15,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:04:15 BoogieIcfgContainer [2021-12-17 15:04:15,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 15:04:15,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 15:04:15,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 15:04:15,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 15:04:15,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 03:04:13" (1/3) ... [2021-12-17 15:04:15,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@728c603d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:04:15, skipping insertion in model container [2021-12-17 15:04:15,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:04:13" (2/3) ... [2021-12-17 15:04:15,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@728c603d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:04:15, skipping insertion in model container [2021-12-17 15:04:15,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:04:15" (3/3) ... [2021-12-17 15:04:15,281 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec8_product34.cil.c [2021-12-17 15:04:15,285 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 15:04:15,286 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 15:04:15,334 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 15:04:15,340 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 [2021-12-17 15:04:15,340 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 15:04:15,381 INFO L276 IsEmpty]: Start isEmpty. Operand has 448 states, 347 states have (on average 1.5360230547550433) internal successors, (533), 352 states have internal predecessors, (533), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2021-12-17 15:04:15,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-17 15:04:15,400 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:04:15,401 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:04:15,401 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:04:15,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:04:15,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1401609271, now seen corresponding path program 1 times [2021-12-17 15:04:15,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:04:15,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638262434] [2021-12-17 15:04:15,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:04:15,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:04:15,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:15,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:04:15,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:15,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:04:15,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:15,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:04:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:15,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:04:15,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:15,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 15:04:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:15,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 15:04:15,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:15,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-17 15:04:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:15,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-17 15:04:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:15,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-17 15:04:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:15,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-17 15:04:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:15,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-17 15:04:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:15,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-17 15:04:15,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:15,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-17 15:04:15,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:15,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-17 15:04:15,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:15,919 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-17 15:04:15,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:04:15,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638262434] [2021-12-17 15:04:15,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638262434] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:04:15,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674855266] [2021-12-17 15:04:15,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:04:15,922 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:04:15,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:04:15,931 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) [2021-12-17 15:04:15,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 15:04:16,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:16,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 1157 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-17 15:04:16,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:04:16,467 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-17 15:04:16,468 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:04:16,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674855266] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:04:16,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:04:16,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-12-17 15:04:16,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028516990] [2021-12-17 15:04:16,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:04:16,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 15:04:16,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:04:16,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 15:04:16,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:04:16,501 INFO L87 Difference]: Start difference. First operand has 448 states, 347 states have (on average 1.5360230547550433) internal successors, (533), 352 states have internal predecessors, (533), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:04:16,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:04:16,558 INFO L93 Difference]: Finished difference Result 703 states and 1040 transitions. [2021-12-17 15:04:16,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 15:04:16,562 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 110 [2021-12-17 15:04:16,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:04:16,581 INFO L225 Difference]: With dead ends: 703 [2021-12-17 15:04:16,581 INFO L226 Difference]: Without dead ends: 441 [2021-12-17 15:04:16,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:04:16,594 INFO L933 BasicCegarLoop]: 671 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, 671 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 [2021-12-17 15:04:16,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:04:16,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2021-12-17 15:04:16,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2021-12-17 15:04:16,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 341 states have (on average 1.530791788856305) internal successors, (522), 345 states have internal predecessors, (522), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2021-12-17 15:04:16,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 663 transitions. [2021-12-17 15:04:16,663 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 663 transitions. Word has length 110 [2021-12-17 15:04:16,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:04:16,678 INFO L470 AbstractCegarLoop]: Abstraction has 441 states and 663 transitions. [2021-12-17 15:04:16,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:04:16,678 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 663 transitions. [2021-12-17 15:04:16,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-17 15:04:16,683 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:04:16,683 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:04:16,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-17 15:04:16,907 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 [2021-12-17 15:04:16,908 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:04:16,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:04:16,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1511627835, now seen corresponding path program 1 times [2021-12-17 15:04:16,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:04:16,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412092778] [2021-12-17 15:04:16,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:04:16,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:04:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:16,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:04:16,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:17,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:04:17,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:17,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:04:17,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:17,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:04:17,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:17,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 15:04:17,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:17,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 15:04:17,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:17,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-17 15:04:17,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:17,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-17 15:04:17,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:17,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-17 15:04:17,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:17,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-17 15:04:17,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:17,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-17 15:04:17,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:17,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 15:04:17,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:17,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-17 15:04:17,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:17,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-17 15:04:17,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:17,100 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-17 15:04:17,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:04:17,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412092778] [2021-12-17 15:04:17,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412092778] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:04:17,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919178086] [2021-12-17 15:04:17,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:04:17,102 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:04:17,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:04:17,103 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) [2021-12-17 15:04:17,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-17 15:04:17,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:17,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 15:04:17,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:04:17,549 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-17 15:04:17,549 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:04:17,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919178086] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:04:17,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:04:17,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-17 15:04:17,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247315807] [2021-12-17 15:04:17,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:04:17,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:04:17,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:04:17,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:04:17,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 15:04:17,553 INFO L87 Difference]: Start difference. First operand 441 states and 663 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:04:17,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:04:17,622 INFO L93 Difference]: Finished difference Result 693 states and 1018 transitions. [2021-12-17 15:04:17,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:04:17,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 111 [2021-12-17 15:04:17,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:04:17,629 INFO L225 Difference]: With dead ends: 693 [2021-12-17 15:04:17,629 INFO L226 Difference]: Without dead ends: 444 [2021-12-17 15:04:17,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 15:04:17,633 INFO L933 BasicCegarLoop]: 661 mSDtfsCounter, 1 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1320 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 [2021-12-17 15:04:17,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1320 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:04:17,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2021-12-17 15:04:17,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 443. [2021-12-17 15:04:17,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 343 states have (on average 1.5276967930029155) internal successors, (524), 347 states have internal predecessors, (524), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2021-12-17 15:04:17,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 665 transitions. [2021-12-17 15:04:17,678 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 665 transitions. Word has length 111 [2021-12-17 15:04:17,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:04:17,680 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 665 transitions. [2021-12-17 15:04:17,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:04:17,681 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 665 transitions. [2021-12-17 15:04:17,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-17 15:04:17,687 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:04:17,691 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:04:17,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-17 15:04:17,906 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 [2021-12-17 15:04:17,907 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:04:17,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:04:17,907 INFO L85 PathProgramCache]: Analyzing trace with hash 843354108, now seen corresponding path program 1 times [2021-12-17 15:04:17,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:04:17,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95901298] [2021-12-17 15:04:17,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:04:17,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:04:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:17,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:04:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:17,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:04:17,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:17,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:04:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:18,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:04:18,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:18,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 15:04:18,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:18,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 15:04:18,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:18,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-17 15:04:18,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:18,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-17 15:04:18,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:18,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-17 15:04:18,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:18,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-17 15:04:18,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:18,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 15:04:18,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:18,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-17 15:04:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:18,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-17 15:04:18,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:18,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-17 15:04:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:18,065 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 15:04:18,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:04:18,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95901298] [2021-12-17 15:04:18,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95901298] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:04:18,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697738304] [2021-12-17 15:04:18,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:04:18,067 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:04:18,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:04:18,070 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) [2021-12-17 15:04:18,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-17 15:04:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:18,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 1172 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 15:04:18,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:04:18,570 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-17 15:04:18,570 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:04:18,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697738304] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:04:18,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:04:18,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-17 15:04:18,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95058723] [2021-12-17 15:04:18,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:04:18,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:04:18,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:04:18,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:04:18,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 15:04:18,575 INFO L87 Difference]: Start difference. First operand 443 states and 665 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:04:18,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:04:18,620 INFO L93 Difference]: Finished difference Result 934 states and 1422 transitions. [2021-12-17 15:04:18,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:04:18,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2021-12-17 15:04:18,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:04:18,625 INFO L225 Difference]: With dead ends: 934 [2021-12-17 15:04:18,625 INFO L226 Difference]: Without dead ends: 518 [2021-12-17 15:04:18,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 15:04:18,630 INFO L933 BasicCegarLoop]: 693 mSDtfsCounter, 134 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1311 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 [2021-12-17 15:04:18,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 1311 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:04:18,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2021-12-17 15:04:18,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 510. [2021-12-17 15:04:18,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 396 states have (on average 1.547979797979798) internal successors, (613), 400 states have internal predecessors, (613), 85 states have call successors, (85), 28 states have call predecessors, (85), 28 states have return successors, (84), 83 states have call predecessors, (84), 84 states have call successors, (84) [2021-12-17 15:04:18,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 782 transitions. [2021-12-17 15:04:18,655 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 782 transitions. Word has length 117 [2021-12-17 15:04:18,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:04:18,656 INFO L470 AbstractCegarLoop]: Abstraction has 510 states and 782 transitions. [2021-12-17 15:04:18,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:04:18,656 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 782 transitions. [2021-12-17 15:04:18,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-17 15:04:18,659 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:04:18,659 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:04:18,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-17 15:04:18,883 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 [2021-12-17 15:04:18,884 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:04:18,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:04:18,885 INFO L85 PathProgramCache]: Analyzing trace with hash -2031116616, now seen corresponding path program 1 times [2021-12-17 15:04:18,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:04:18,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453649209] [2021-12-17 15:04:18,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:04:18,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:04:18,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:18,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:04:18,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:18,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:04:18,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:18,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:04:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:18,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:04:18,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:18,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 15:04:18,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:18,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 15:04:18,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:18,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-17 15:04:18,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:19,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-17 15:04:19,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:19,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-17 15:04:19,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:19,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-17 15:04:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:19,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-17 15:04:19,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:19,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-17 15:04:19,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:19,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-17 15:04:19,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:19,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-17 15:04:19,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:19,027 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 15:04:19,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:04:19,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453649209] [2021-12-17 15:04:19,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453649209] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:04:19,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967415921] [2021-12-17 15:04:19,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:04:19,029 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:04:19,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:04:19,030 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) [2021-12-17 15:04:19,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-17 15:04:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:19,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 1179 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-17 15:04:19,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:04:19,538 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-17 15:04:19,538 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:04:19,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967415921] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:04:19,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:04:19,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-17 15:04:19,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892772316] [2021-12-17 15:04:19,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:04:19,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 15:04:19,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:04:19,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 15:04:19,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 15:04:19,541 INFO L87 Difference]: Start difference. First operand 510 states and 782 transitions. Second operand has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-17 15:04:19,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:04:19,601 INFO L93 Difference]: Finished difference Result 1011 states and 1554 transitions. [2021-12-17 15:04:19,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 15:04:19,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 118 [2021-12-17 15:04:19,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:04:19,605 INFO L225 Difference]: With dead ends: 1011 [2021-12-17 15:04:19,606 INFO L226 Difference]: Without dead ends: 512 [2021-12-17 15:04:19,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:04:19,608 INFO L933 BasicCegarLoop]: 654 mSDtfsCounter, 152 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2442 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 [2021-12-17 15:04:19,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 2442 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:04:19,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2021-12-17 15:04:19,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 512. [2021-12-17 15:04:19,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 397 states have (on average 1.5465994962216625) internal successors, (614), 402 states have internal predecessors, (614), 85 states have call successors, (85), 28 states have call predecessors, (85), 29 states have return successors, (86), 83 states have call predecessors, (86), 84 states have call successors, (86) [2021-12-17 15:04:19,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 785 transitions. [2021-12-17 15:04:19,628 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 785 transitions. Word has length 118 [2021-12-17 15:04:19,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:04:19,628 INFO L470 AbstractCegarLoop]: Abstraction has 512 states and 785 transitions. [2021-12-17 15:04:19,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-17 15:04:19,629 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 785 transitions. [2021-12-17 15:04:19,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-17 15:04:19,631 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:04:19,631 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:04:19,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-17 15:04:19,855 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 [2021-12-17 15:04:19,856 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:04:19,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:04:19,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1440532084, now seen corresponding path program 1 times [2021-12-17 15:04:19,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:04:19,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099328178] [2021-12-17 15:04:19,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:04:19,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:04:19,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:19,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:04:19,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:19,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:04:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:19,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:04:19,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:19,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:04:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:19,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-17 15:04:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:19,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-17 15:04:19,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:19,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-17 15:04:19,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:20,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-17 15:04:20,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:20,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-17 15:04:20,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:20,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-17 15:04:20,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:20,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-17 15:04:20,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:20,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-17 15:04:20,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:20,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-17 15:04:20,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:20,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-17 15:04:20,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:20,029 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-17 15:04:20,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:04:20,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099328178] [2021-12-17 15:04:20,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099328178] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:04:20,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599738332] [2021-12-17 15:04:20,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:04:20,030 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:04:20,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:04:20,031 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) [2021-12-17 15:04:20,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-17 15:04:20,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:20,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 1180 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-17 15:04:20,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:04:20,528 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-17 15:04:20,528 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:04:20,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599738332] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:04:20,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:04:20,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-17 15:04:20,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077118055] [2021-12-17 15:04:20,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:04:20,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 15:04:20,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:04:20,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 15:04:20,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-12-17 15:04:20,531 INFO L87 Difference]: Start difference. First operand 512 states and 785 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-17 15:04:20,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:04:20,598 INFO L93 Difference]: Finished difference Result 1013 states and 1559 transitions. [2021-12-17 15:04:20,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 15:04:20,599 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 119 [2021-12-17 15:04:20,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:04:20,602 INFO L225 Difference]: With dead ends: 1013 [2021-12-17 15:04:20,603 INFO L226 Difference]: Without dead ends: 514 [2021-12-17 15:04:20,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-12-17 15:04:20,605 INFO L933 BasicCegarLoop]: 652 mSDtfsCounter, 151 mSDsluCounter, 1779 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2431 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 [2021-12-17 15:04:20,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 2431 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:04:20,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2021-12-17 15:04:20,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2021-12-17 15:04:20,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 398 states have (on average 1.5452261306532664) internal successors, (615), 404 states have internal predecessors, (615), 85 states have call successors, (85), 28 states have call predecessors, (85), 30 states have return successors, (91), 83 states have call predecessors, (91), 84 states have call successors, (91) [2021-12-17 15:04:20,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 791 transitions. [2021-12-17 15:04:20,626 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 791 transitions. Word has length 119 [2021-12-17 15:04:20,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:04:20,626 INFO L470 AbstractCegarLoop]: Abstraction has 514 states and 791 transitions. [2021-12-17 15:04:20,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-17 15:04:20,627 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 791 transitions. [2021-12-17 15:04:20,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-17 15:04:20,629 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:04:20,629 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:04:20,657 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-17 15:04:20,843 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 [2021-12-17 15:04:20,844 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:04:20,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:04:20,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1239817995, now seen corresponding path program 1 times [2021-12-17 15:04:20,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:04:20,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263161198] [2021-12-17 15:04:20,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:04:20,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:04:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:20,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:04:20,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:20,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:04:20,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:20,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:04:20,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:20,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:04:20,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:20,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:04:20,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:20,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 15:04:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:20,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-17 15:04:20,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:20,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-17 15:04:20,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:20,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-17 15:04:20,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:20,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-17 15:04:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:20,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-17 15:04:20,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:20,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 15:04:20,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:20,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 15:04:20,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:20,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-17 15:04:20,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:20,982 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 15:04:20,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:04:20,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263161198] [2021-12-17 15:04:20,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263161198] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:04:20,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:04:20,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 15:04:20,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662936876] [2021-12-17 15:04:20,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:04:20,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 15:04:20,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:04:20,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 15:04:20,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:04:20,984 INFO L87 Difference]: Start difference. First operand 514 states and 791 transitions. Second operand has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-17 15:04:23,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:04:23,137 INFO L93 Difference]: Finished difference Result 1210 states and 1878 transitions. [2021-12-17 15:04:23,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-17 15:04:23,138 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 120 [2021-12-17 15:04:23,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:04:23,143 INFO L225 Difference]: With dead ends: 1210 [2021-12-17 15:04:23,144 INFO L226 Difference]: Without dead ends: 719 [2021-12-17 15:04:23,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-17 15:04:23,146 INFO L933 BasicCegarLoop]: 706 mSDtfsCounter, 1852 mSDsluCounter, 1287 mSDsCounter, 0 mSdLazyCounter, 2198 mSolverCounterSat, 751 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1874 SdHoareTripleChecker+Valid, 1993 SdHoareTripleChecker+Invalid, 2949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 751 IncrementalHoareTripleChecker+Valid, 2198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-17 15:04:23,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1874 Valid, 1993 Invalid, 2949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [751 Valid, 2198 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-17 15:04:23,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2021-12-17 15:04:23,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 514. [2021-12-17 15:04:23,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 398 states have (on average 1.5452261306532664) internal successors, (615), 404 states have internal predecessors, (615), 85 states have call successors, (85), 28 states have call predecessors, (85), 30 states have return successors, (90), 83 states have call predecessors, (90), 84 states have call successors, (90) [2021-12-17 15:04:23,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 790 transitions. [2021-12-17 15:04:23,181 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 790 transitions. Word has length 120 [2021-12-17 15:04:23,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:04:23,182 INFO L470 AbstractCegarLoop]: Abstraction has 514 states and 790 transitions. [2021-12-17 15:04:23,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-17 15:04:23,182 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 790 transitions. [2021-12-17 15:04:23,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-17 15:04:23,185 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:04:23,185 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:04:23,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 15:04:23,186 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:04:23,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:04:23,186 INFO L85 PathProgramCache]: Analyzing trace with hash 880428033, now seen corresponding path program 2 times [2021-12-17 15:04:23,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:04:23,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180903195] [2021-12-17 15:04:23,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:04:23,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:04:23,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:23,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:04:23,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:23,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:04:23,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:23,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:04:23,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:23,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:04:23,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:23,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:04:23,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:23,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-17 15:04:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:23,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 15:04:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:23,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-17 15:04:23,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:23,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-17 15:04:23,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:23,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-17 15:04:23,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:23,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-17 15:04:23,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:23,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-17 15:04:23,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:23,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-17 15:04:23,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:23,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-17 15:04:23,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:23,311 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 15:04:23,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:04:23,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180903195] [2021-12-17 15:04:23,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180903195] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:04:23,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:04:23,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 15:04:23,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394893263] [2021-12-17 15:04:23,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:04:23,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 15:04:23,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:04:23,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 15:04:23,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:04:23,314 INFO L87 Difference]: Start difference. First operand 514 states and 790 transitions. Second operand has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-17 15:04:25,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:04:25,303 INFO L93 Difference]: Finished difference Result 1212 states and 1881 transitions. [2021-12-17 15:04:25,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-17 15:04:25,304 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 121 [2021-12-17 15:04:25,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:04:25,309 INFO L225 Difference]: With dead ends: 1212 [2021-12-17 15:04:25,309 INFO L226 Difference]: Without dead ends: 721 [2021-12-17 15:04:25,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-17 15:04:25,311 INFO L933 BasicCegarLoop]: 725 mSDtfsCounter, 1802 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 2249 mSolverCounterSat, 745 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1823 SdHoareTripleChecker+Valid, 2024 SdHoareTripleChecker+Invalid, 2994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 745 IncrementalHoareTripleChecker+Valid, 2249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-17 15:04:25,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1823 Valid, 2024 Invalid, 2994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [745 Valid, 2249 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-17 15:04:25,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2021-12-17 15:04:25,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 516. [2021-12-17 15:04:25,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 399 states have (on average 1.543859649122807) internal successors, (616), 406 states have internal predecessors, (616), 85 states have call successors, (85), 28 states have call predecessors, (85), 31 states have return successors, (92), 83 states have call predecessors, (92), 84 states have call successors, (92) [2021-12-17 15:04:25,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 793 transitions. [2021-12-17 15:04:25,340 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 793 transitions. Word has length 121 [2021-12-17 15:04:25,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:04:25,340 INFO L470 AbstractCegarLoop]: Abstraction has 516 states and 793 transitions. [2021-12-17 15:04:25,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-17 15:04:25,341 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 793 transitions. [2021-12-17 15:04:25,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-17 15:04:25,344 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:04:25,344 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:04:25,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 15:04:25,344 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:04:25,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:04:25,345 INFO L85 PathProgramCache]: Analyzing trace with hash -124712218, now seen corresponding path program 1 times [2021-12-17 15:04:25,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:04:25,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195106271] [2021-12-17 15:04:25,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:04:25,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:04:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:25,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:04:25,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:25,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:04:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:25,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:04:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:25,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:04:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:25,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:04:25,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:25,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:04:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:25,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-17 15:04:25,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:25,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-17 15:04:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:25,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-17 15:04:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:25,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-17 15:04:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:25,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-17 15:04:25,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:25,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-17 15:04:25,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:25,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-17 15:04:25,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:25,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-17 15:04:25,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:25,504 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-17 15:04:25,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:04:25,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195106271] [2021-12-17 15:04:25,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195106271] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:04:25,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:04:25,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 15:04:25,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031450611] [2021-12-17 15:04:25,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:04:25,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 15:04:25,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:04:25,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 15:04:25,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-17 15:04:25,506 INFO L87 Difference]: Start difference. First operand 516 states and 793 transitions. Second operand has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2021-12-17 15:04:28,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:04:28,162 INFO L93 Difference]: Finished difference Result 1210 states and 1876 transitions. [2021-12-17 15:04:28,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 15:04:28,163 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 122 [2021-12-17 15:04:28,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:04:28,179 INFO L225 Difference]: With dead ends: 1210 [2021-12-17 15:04:28,180 INFO L226 Difference]: Without dead ends: 721 [2021-12-17 15:04:28,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-17 15:04:28,183 INFO L933 BasicCegarLoop]: 739 mSDtfsCounter, 1853 mSDsluCounter, 1968 mSDsCounter, 0 mSdLazyCounter, 4269 mSolverCounterSat, 736 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1853 SdHoareTripleChecker+Valid, 2707 SdHoareTripleChecker+Invalid, 5005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 736 IncrementalHoareTripleChecker+Valid, 4269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-17 15:04:28,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1853 Valid, 2707 Invalid, 5005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [736 Valid, 4269 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-17 15:04:28,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2021-12-17 15:04:28,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 516. [2021-12-17 15:04:28,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 399 states have (on average 1.543859649122807) internal successors, (616), 406 states have internal predecessors, (616), 85 states have call successors, (85), 28 states have call predecessors, (85), 31 states have return successors, (91), 83 states have call predecessors, (91), 84 states have call successors, (91) [2021-12-17 15:04:28,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 792 transitions. [2021-12-17 15:04:28,214 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 792 transitions. Word has length 122 [2021-12-17 15:04:28,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:04:28,215 INFO L470 AbstractCegarLoop]: Abstraction has 516 states and 792 transitions. [2021-12-17 15:04:28,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2021-12-17 15:04:28,215 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 792 transitions. [2021-12-17 15:04:28,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-17 15:04:28,217 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:04:28,218 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:04:28,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 15:04:28,218 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:04:28,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:04:28,219 INFO L85 PathProgramCache]: Analyzing trace with hash -580455267, now seen corresponding path program 2 times [2021-12-17 15:04:28,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:04:28,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188312416] [2021-12-17 15:04:28,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:04:28,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:04:28,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:28,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:04:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:28,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:04:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:28,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:04:28,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:28,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:04:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:28,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:04:28,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:28,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:04:28,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:28,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-17 15:04:28,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:28,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-17 15:04:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:28,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-17 15:04:28,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:28,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-17 15:04:28,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:28,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-17 15:04:28,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:28,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-17 15:04:28,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:28,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-17 15:04:28,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:28,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-17 15:04:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:28,354 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-17 15:04:28,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:04:28,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188312416] [2021-12-17 15:04:28,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188312416] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:04:28,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:04:28,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 15:04:28,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481349202] [2021-12-17 15:04:28,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:04:28,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 15:04:28,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:04:28,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 15:04:28,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-17 15:04:28,357 INFO L87 Difference]: Start difference. First operand 516 states and 792 transitions. Second operand has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2021-12-17 15:04:30,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:04:30,753 INFO L93 Difference]: Finished difference Result 1212 states and 1882 transitions. [2021-12-17 15:04:30,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 15:04:30,754 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 123 [2021-12-17 15:04:30,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:04:30,758 INFO L225 Difference]: With dead ends: 1212 [2021-12-17 15:04:30,759 INFO L226 Difference]: Without dead ends: 723 [2021-12-17 15:04:30,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-17 15:04:30,761 INFO L933 BasicCegarLoop]: 684 mSDtfsCounter, 1963 mSDsluCounter, 1886 mSDsCounter, 0 mSdLazyCounter, 3945 mSolverCounterSat, 801 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1963 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 4746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 801 IncrementalHoareTripleChecker+Valid, 3945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:04:30,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1963 Valid, 2570 Invalid, 4746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [801 Valid, 3945 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-17 15:04:30,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2021-12-17 15:04:30,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 518. [2021-12-17 15:04:30,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 400 states have (on average 1.5425) internal successors, (617), 408 states have internal predecessors, (617), 85 states have call successors, (85), 28 states have call predecessors, (85), 32 states have return successors, (96), 83 states have call predecessors, (96), 84 states have call successors, (96) [2021-12-17 15:04:30,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 798 transitions. [2021-12-17 15:04:30,793 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 798 transitions. Word has length 123 [2021-12-17 15:04:30,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:04:30,794 INFO L470 AbstractCegarLoop]: Abstraction has 518 states and 798 transitions. [2021-12-17 15:04:30,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2021-12-17 15:04:30,794 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 798 transitions. [2021-12-17 15:04:30,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-17 15:04:30,797 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:04:30,797 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:04:30,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-17 15:04:30,797 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:04:30,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:04:30,798 INFO L85 PathProgramCache]: Analyzing trace with hash -384876767, now seen corresponding path program 1 times [2021-12-17 15:04:30,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:04:30,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383952192] [2021-12-17 15:04:30,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:04:30,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:04:30,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:30,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:04:30,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:30,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:04:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:30,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:04:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:30,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:04:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:30,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:04:30,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:30,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:04:30,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:30,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-17 15:04:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:30,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-17 15:04:30,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:30,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 15:04:30,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:30,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-17 15:04:30,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:30,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-17 15:04:30,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:30,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-17 15:04:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:30,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-17 15:04:30,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:30,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-17 15:04:30,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:30,923 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:04:30,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:04:30,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383952192] [2021-12-17 15:04:30,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383952192] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:04:30,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864113061] [2021-12-17 15:04:30,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:04:30,924 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:04:30,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:04:30,925 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) [2021-12-17 15:04:30,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-17 15:04:31,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:31,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 1185 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 15:04:31,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:04:31,336 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:04:31,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 15:04:31,552 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:04:31,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864113061] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 15:04:31,553 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 15:04:31,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2021-12-17 15:04:31,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289600982] [2021-12-17 15:04:31,555 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 15:04:31,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-17 15:04:31,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:04:31,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-17 15:04:31,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-17 15:04:31,557 INFO L87 Difference]: Start difference. First operand 518 states and 798 transitions. Second operand has 11 states, 11 states have (on average 10.909090909090908) internal successors, (120), 7 states have internal predecessors, (120), 2 states have call successors, (34), 6 states have call predecessors, (34), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-17 15:04:33,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:04:33,484 INFO L93 Difference]: Finished difference Result 1414 states and 2275 transitions. [2021-12-17 15:04:33,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 15:04:33,485 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.909090909090908) internal successors, (120), 7 states have internal predecessors, (120), 2 states have call successors, (34), 6 states have call predecessors, (34), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 124 [2021-12-17 15:04:33,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:04:33,492 INFO L225 Difference]: With dead ends: 1414 [2021-12-17 15:04:33,492 INFO L226 Difference]: Without dead ends: 1165 [2021-12-17 15:04:33,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2021-12-17 15:04:33,494 INFO L933 BasicCegarLoop]: 875 mSDtfsCounter, 2155 mSDsluCounter, 1725 mSDsCounter, 0 mSdLazyCounter, 2238 mSolverCounterSat, 899 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2212 SdHoareTripleChecker+Valid, 2600 SdHoareTripleChecker+Invalid, 3137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 899 IncrementalHoareTripleChecker+Valid, 2238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 15:04:33,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2212 Valid, 2600 Invalid, 3137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [899 Valid, 2238 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 15:04:33,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1165 states. [2021-12-17 15:04:33,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1165 to 936. [2021-12-17 15:04:33,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 739 states have (on average 1.6102841677943167) internal successors, (1190), 747 states have internal predecessors, (1190), 164 states have call successors, (164), 28 states have call predecessors, (164), 32 states have return successors, (185), 162 states have call predecessors, (185), 163 states have call successors, (185) [2021-12-17 15:04:33,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1539 transitions. [2021-12-17 15:04:33,543 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1539 transitions. Word has length 124 [2021-12-17 15:04:33,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:04:33,544 INFO L470 AbstractCegarLoop]: Abstraction has 936 states and 1539 transitions. [2021-12-17 15:04:33,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.909090909090908) internal successors, (120), 7 states have internal predecessors, (120), 2 states have call successors, (34), 6 states have call predecessors, (34), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-17 15:04:33,544 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1539 transitions. [2021-12-17 15:04:33,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-17 15:04:33,549 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:04:33,550 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:04:33,574 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-17 15:04:33,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:04:33,768 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:04:33,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:04:33,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1303955588, now seen corresponding path program 1 times [2021-12-17 15:04:33,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:04:33,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122616380] [2021-12-17 15:04:33,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:04:33,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:04:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:33,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:04:33,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:33,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:04:33,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:33,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:04:33,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:33,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:04:33,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:33,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:04:33,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:33,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:04:33,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:33,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 15:04:33,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:33,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-17 15:04:33,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:33,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-17 15:04:33,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:33,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-17 15:04:33,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:33,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-17 15:04:33,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:33,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-17 15:04:33,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:33,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-17 15:04:33,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:33,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-17 15:04:33,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:33,889 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:04:33,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:04:33,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122616380] [2021-12-17 15:04:33,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122616380] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:04:33,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:04:33,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:04:33,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863524685] [2021-12-17 15:04:33,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:04:33,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:04:33,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:04:33,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:04:33,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:04:33,892 INFO L87 Difference]: Start difference. First operand 936 states and 1539 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:04:35,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:04:35,381 INFO L93 Difference]: Finished difference Result 2432 states and 4076 transitions. [2021-12-17 15:04:35,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:04:35,382 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2021-12-17 15:04:35,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:04:35,392 INFO L225 Difference]: With dead ends: 2432 [2021-12-17 15:04:35,392 INFO L226 Difference]: Without dead ends: 1564 [2021-12-17 15:04:35,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:04:35,397 INFO L933 BasicCegarLoop]: 796 mSDtfsCounter, 1711 mSDsluCounter, 924 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 777 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1729 SdHoareTripleChecker+Valid, 1720 SdHoareTripleChecker+Invalid, 2030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 777 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 15:04:35,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1729 Valid, 1720 Invalid, 2030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [777 Valid, 1253 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 15:04:35,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1564 states. [2021-12-17 15:04:35,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1564 to 1351. [2021-12-17 15:04:35,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1351 states, 1075 states have (on average 1.627906976744186) internal successors, (1750), 1083 states have internal predecessors, (1750), 243 states have call successors, (243), 28 states have call predecessors, (243), 32 states have return successors, (274), 241 states have call predecessors, (274), 242 states have call successors, (274) [2021-12-17 15:04:35,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1351 states to 1351 states and 2267 transitions. [2021-12-17 15:04:35,487 INFO L78 Accepts]: Start accepts. Automaton has 1351 states and 2267 transitions. Word has length 130 [2021-12-17 15:04:35,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:04:35,487 INFO L470 AbstractCegarLoop]: Abstraction has 1351 states and 2267 transitions. [2021-12-17 15:04:35,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:04:35,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1351 states and 2267 transitions. [2021-12-17 15:04:35,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-17 15:04:35,495 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:04:35,495 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:04:35,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-17 15:04:35,495 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:04:35,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:04:35,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1870689843, now seen corresponding path program 1 times [2021-12-17 15:04:35,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:04:35,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644976756] [2021-12-17 15:04:35,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:04:35,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:04:35,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:35,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:04:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:35,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:04:35,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:35,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:04:35,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:35,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:04:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:35,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:04:35,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:35,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:04:35,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:35,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-17 15:04:35,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:35,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-17 15:04:35,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:35,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-17 15:04:35,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:35,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-17 15:04:35,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:35,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-17 15:04:35,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:35,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 15:04:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:35,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-17 15:04:35,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:35,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-17 15:04:35,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:35,609 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:04:35,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:04:35,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644976756] [2021-12-17 15:04:35,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644976756] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:04:35,609 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:04:35,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:04:35,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881999203] [2021-12-17 15:04:35,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:04:35,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:04:35,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:04:35,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:04:35,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:04:35,612 INFO L87 Difference]: Start difference. First operand 1351 states and 2267 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:04:36,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:04:36,990 INFO L93 Difference]: Finished difference Result 3446 states and 5854 transitions. [2021-12-17 15:04:36,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:04:36,991 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 131 [2021-12-17 15:04:36,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:04:37,003 INFO L225 Difference]: With dead ends: 3446 [2021-12-17 15:04:37,004 INFO L226 Difference]: Without dead ends: 2216 [2021-12-17 15:04:37,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:04:37,009 INFO L933 BasicCegarLoop]: 748 mSDtfsCounter, 1780 mSDsluCounter, 888 mSDsCounter, 0 mSdLazyCounter, 1177 mSolverCounterSat, 791 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1800 SdHoareTripleChecker+Valid, 1636 SdHoareTripleChecker+Invalid, 1968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 791 IncrementalHoareTripleChecker+Valid, 1177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:04:37,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1800 Valid, 1636 Invalid, 1968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [791 Valid, 1177 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-17 15:04:37,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2216 states. [2021-12-17 15:04:37,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2216 to 2003. [2021-12-17 15:04:37,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2003 states, 1608 states have (on average 1.6399253731343284) internal successors, (2637), 1616 states have internal predecessors, (2637), 362 states have call successors, (362), 28 states have call predecessors, (362), 32 states have return successors, (393), 360 states have call predecessors, (393), 361 states have call successors, (393) [2021-12-17 15:04:37,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2003 states to 2003 states and 3392 transitions. [2021-12-17 15:04:37,133 INFO L78 Accepts]: Start accepts. Automaton has 2003 states and 3392 transitions. Word has length 131 [2021-12-17 15:04:37,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:04:37,133 INFO L470 AbstractCegarLoop]: Abstraction has 2003 states and 3392 transitions. [2021-12-17 15:04:37,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:04:37,134 INFO L276 IsEmpty]: Start isEmpty. Operand 2003 states and 3392 transitions. [2021-12-17 15:04:37,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-12-17 15:04:37,147 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:04:37,148 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:04:37,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-17 15:04:37,148 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:04:37,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:04:37,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1061539902, now seen corresponding path program 1 times [2021-12-17 15:04:37,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:04:37,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779053506] [2021-12-17 15:04:37,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:04:37,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:04:37,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:37,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:04:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:37,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:04:37,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:37,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:04:37,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:37,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:04:37,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:37,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:04:37,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:37,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:04:37,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:37,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-17 15:04:37,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:37,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-17 15:04:37,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:37,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-17 15:04:37,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:37,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-17 15:04:37,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:37,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-17 15:04:37,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:37,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-17 15:04:37,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:37,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-17 15:04:37,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:37,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-17 15:04:37,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:37,271 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:04:37,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:04:37,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779053506] [2021-12-17 15:04:37,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779053506] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:04:37,271 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:04:37,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:04:37,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187808861] [2021-12-17 15:04:37,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:04:37,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:04:37,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:04:37,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:04:37,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:04:37,274 INFO L87 Difference]: Start difference. First operand 2003 states and 3392 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:04:38,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:04:38,799 INFO L93 Difference]: Finished difference Result 4976 states and 8556 transitions. [2021-12-17 15:04:38,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:04:38,799 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2021-12-17 15:04:38,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:04:38,816 INFO L225 Difference]: With dead ends: 4976 [2021-12-17 15:04:38,816 INFO L226 Difference]: Without dead ends: 3219 [2021-12-17 15:04:38,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:04:38,823 INFO L933 BasicCegarLoop]: 769 mSDtfsCounter, 1745 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 787 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1764 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 1992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 787 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 15:04:38,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1764 Valid, 1660 Invalid, 1992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [787 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 15:04:38,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3219 states. [2021-12-17 15:04:38,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3219 to 3006. [2021-12-17 15:04:38,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3006 states, 2449 states have (on average 1.6492445896284198) internal successors, (4039), 2457 states have internal predecessors, (4039), 524 states have call successors, (524), 28 states have call predecessors, (524), 32 states have return successors, (571), 522 states have call predecessors, (571), 523 states have call successors, (571) [2021-12-17 15:04:39,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3006 states to 3006 states and 5134 transitions. [2021-12-17 15:04:39,006 INFO L78 Accepts]: Start accepts. Automaton has 3006 states and 5134 transitions. Word has length 132 [2021-12-17 15:04:39,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:04:39,007 INFO L470 AbstractCegarLoop]: Abstraction has 3006 states and 5134 transitions. [2021-12-17 15:04:39,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:04:39,007 INFO L276 IsEmpty]: Start isEmpty. Operand 3006 states and 5134 transitions. [2021-12-17 15:04:39,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-17 15:04:39,022 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:04:39,022 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:04:39,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-17 15:04:39,023 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:04:39,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:04:39,023 INFO L85 PathProgramCache]: Analyzing trace with hash -2010719470, now seen corresponding path program 1 times [2021-12-17 15:04:39,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:04:39,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497791563] [2021-12-17 15:04:39,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:04:39,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:04:39,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:39,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:04:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:39,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:04:39,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:39,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:04:39,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:39,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:04:39,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:39,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:04:39,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:39,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:04:39,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:39,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-17 15:04:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:39,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 15:04:39,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:39,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-17 15:04:39,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:39,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-17 15:04:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:39,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-17 15:04:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:39,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-17 15:04:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:39,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-17 15:04:39,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:39,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-17 15:04:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:39,161 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:04:39,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:04:39,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497791563] [2021-12-17 15:04:39,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497791563] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:04:39,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:04:39,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:04:39,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300996959] [2021-12-17 15:04:39,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:04:39,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:04:39,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:04:39,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:04:39,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:04:39,164 INFO L87 Difference]: Start difference. First operand 3006 states and 5134 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:04:40,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:04:40,788 INFO L93 Difference]: Finished difference Result 7400 states and 12845 transitions. [2021-12-17 15:04:40,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:04:40,796 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 133 [2021-12-17 15:04:40,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:04:40,822 INFO L225 Difference]: With dead ends: 7400 [2021-12-17 15:04:40,822 INFO L226 Difference]: Without dead ends: 4844 [2021-12-17 15:04:40,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:04:40,834 INFO L933 BasicCegarLoop]: 749 mSDtfsCounter, 1769 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 1178 mSolverCounterSat, 789 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1787 SdHoareTripleChecker+Valid, 1640 SdHoareTripleChecker+Invalid, 1967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 789 IncrementalHoareTripleChecker+Valid, 1178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-17 15:04:40,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1787 Valid, 1640 Invalid, 1967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [789 Valid, 1178 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-17 15:04:40,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4844 states. [2021-12-17 15:04:41,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4844 to 4631. [2021-12-17 15:04:41,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4631 states, 3829 states have (on average 1.655784800208932) internal successors, (6340), 3837 states have internal predecessors, (6340), 769 states have call successors, (769), 28 states have call predecessors, (769), 32 states have return successors, (842), 767 states have call predecessors, (842), 768 states have call successors, (842) [2021-12-17 15:04:41,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4631 states to 4631 states and 7951 transitions. [2021-12-17 15:04:41,122 INFO L78 Accepts]: Start accepts. Automaton has 4631 states and 7951 transitions. Word has length 133 [2021-12-17 15:04:41,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:04:41,123 INFO L470 AbstractCegarLoop]: Abstraction has 4631 states and 7951 transitions. [2021-12-17 15:04:41,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:04:41,124 INFO L276 IsEmpty]: Start isEmpty. Operand 4631 states and 7951 transitions. [2021-12-17 15:04:41,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-17 15:04:41,141 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:04:41,141 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:04:41,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-17 15:04:41,142 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:04:41,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:04:41,142 INFO L85 PathProgramCache]: Analyzing trace with hash -439809242, now seen corresponding path program 1 times [2021-12-17 15:04:41,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:04:41,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164290322] [2021-12-17 15:04:41,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:04:41,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:04:41,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:41,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:04:41,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:41,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:04:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:41,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:04:41,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:41,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:04:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:41,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:04:41,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:41,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:04:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:41,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-17 15:04:41,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:41,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-17 15:04:41,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:41,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 15:04:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:41,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-17 15:04:41,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:41,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-17 15:04:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:41,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-17 15:04:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:41,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-17 15:04:41,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:41,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-17 15:04:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:41,273 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:04:41,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:04:41,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164290322] [2021-12-17 15:04:41,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164290322] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:04:41,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:04:41,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:04:41,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049063254] [2021-12-17 15:04:41,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:04:41,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:04:41,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:04:41,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:04:41,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:04:41,276 INFO L87 Difference]: Start difference. First operand 4631 states and 7951 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:04:42,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:04:42,847 INFO L93 Difference]: Finished difference Result 11446 states and 20005 transitions. [2021-12-17 15:04:42,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:04:42,848 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 134 [2021-12-17 15:04:42,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:04:42,886 INFO L225 Difference]: With dead ends: 11446 [2021-12-17 15:04:42,886 INFO L226 Difference]: Without dead ends: 7577 [2021-12-17 15:04:42,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:04:42,899 INFO L933 BasicCegarLoop]: 816 mSDtfsCounter, 1670 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 745 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1688 SdHoareTripleChecker+Valid, 1755 SdHoareTripleChecker+Invalid, 2026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 745 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:04:42,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1688 Valid, 1755 Invalid, 2026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [745 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-17 15:04:42,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7577 states. [2021-12-17 15:04:43,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7577 to 7364. [2021-12-17 15:04:43,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7364 states, 6069 states have (on average 1.6551326412918108) internal successors, (10045), 6077 states have internal predecessors, (10045), 1262 states have call successors, (1262), 28 states have call predecessors, (1262), 32 states have return successors, (1379), 1260 states have call predecessors, (1379), 1261 states have call successors, (1379) [2021-12-17 15:04:43,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7364 states to 7364 states and 12686 transitions. [2021-12-17 15:04:43,277 INFO L78 Accepts]: Start accepts. Automaton has 7364 states and 12686 transitions. Word has length 134 [2021-12-17 15:04:43,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:04:43,277 INFO L470 AbstractCegarLoop]: Abstraction has 7364 states and 12686 transitions. [2021-12-17 15:04:43,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:04:43,277 INFO L276 IsEmpty]: Start isEmpty. Operand 7364 states and 12686 transitions. [2021-12-17 15:04:43,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-17 15:04:43,301 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:04:43,302 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:04:43,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-17 15:04:43,302 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:04:43,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:04:43,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1727156306, now seen corresponding path program 1 times [2021-12-17 15:04:43,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:04:43,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286609225] [2021-12-17 15:04:43,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:04:43,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:04:43,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:43,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:04:43,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:43,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:04:43,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:43,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:04:43,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:43,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:04:43,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:43,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:04:43,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:43,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:04:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:43,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-17 15:04:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:43,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-17 15:04:43,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:43,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-17 15:04:43,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:43,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 15:04:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:43,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-17 15:04:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:43,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-17 15:04:43,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:43,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-17 15:04:43,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:43,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-17 15:04:43,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:43,408 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:04:43,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:04:43,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286609225] [2021-12-17 15:04:43,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286609225] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:04:43,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:04:43,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:04:43,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199100955] [2021-12-17 15:04:43,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:04:43,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:04:43,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:04:43,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:04:43,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:04:43,411 INFO L87 Difference]: Start difference. First operand 7364 states and 12686 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:04:45,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:04:45,177 INFO L93 Difference]: Finished difference Result 18781 states and 32889 transitions. [2021-12-17 15:04:45,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:04:45,178 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 135 [2021-12-17 15:04:45,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:04:45,223 INFO L225 Difference]: With dead ends: 18781 [2021-12-17 15:04:45,223 INFO L226 Difference]: Without dead ends: 12556 [2021-12-17 15:04:45,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:04:45,238 INFO L933 BasicCegarLoop]: 755 mSDtfsCounter, 1765 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 769 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1784 SdHoareTripleChecker+Valid, 1655 SdHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 769 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:04:45,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1784 Valid, 1655 Invalid, 1966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [769 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-17 15:04:45,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12556 states. [2021-12-17 15:04:45,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12556 to 12343. [2021-12-17 15:04:45,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12343 states, 10226 states have (on average 1.656072755720712) internal successors, (16935), 10234 states have internal predecessors, (16935), 2084 states have call successors, (2084), 28 states have call predecessors, (2084), 32 states have return successors, (2279), 2082 states have call predecessors, (2279), 2083 states have call successors, (2279) [2021-12-17 15:04:45,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12343 states to 12343 states and 21298 transitions. [2021-12-17 15:04:45,833 INFO L78 Accepts]: Start accepts. Automaton has 12343 states and 21298 transitions. Word has length 135 [2021-12-17 15:04:45,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:04:45,834 INFO L470 AbstractCegarLoop]: Abstraction has 12343 states and 21298 transitions. [2021-12-17 15:04:45,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:04:45,834 INFO L276 IsEmpty]: Start isEmpty. Operand 12343 states and 21298 transitions. [2021-12-17 15:04:45,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-12-17 15:04:45,868 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:04:45,868 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:04:45,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-17 15:04:45,868 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:04:45,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:04:45,869 INFO L85 PathProgramCache]: Analyzing trace with hash -97339240, now seen corresponding path program 1 times [2021-12-17 15:04:45,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:04:45,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258449289] [2021-12-17 15:04:45,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:04:45,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:04:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:45,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:04:45,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:45,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:04:45,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:45,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:04:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:45,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:04:45,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:45,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:04:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:45,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:04:45,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:45,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-17 15:04:45,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:45,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-17 15:04:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:45,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-17 15:04:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:45,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-17 15:04:45,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:45,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-17 15:04:45,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:45,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-17 15:04:45,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:45,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-17 15:04:45,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:45,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-17 15:04:45,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:45,969 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:04:45,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:04:45,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258449289] [2021-12-17 15:04:45,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258449289] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:04:45,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:04:45,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:04:45,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49009617] [2021-12-17 15:04:45,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:04:45,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:04:45,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:04:45,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:04:45,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:04:45,973 INFO L87 Difference]: Start difference. First operand 12343 states and 21298 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:04:47,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:04:47,914 INFO L93 Difference]: Finished difference Result 29739 states and 51854 transitions. [2021-12-17 15:04:47,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:04:47,914 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 136 [2021-12-17 15:04:47,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:04:47,990 INFO L225 Difference]: With dead ends: 29739 [2021-12-17 15:04:47,991 INFO L226 Difference]: Without dead ends: 19509 [2021-12-17 15:04:48,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:04:48,017 INFO L933 BasicCegarLoop]: 781 mSDtfsCounter, 1723 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 763 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1741 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 1978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 763 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:04:48,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1741 Valid, 1678 Invalid, 1978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [763 Valid, 1215 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-17 15:04:48,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19509 states. [2021-12-17 15:04:48,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19509 to 19296. [2021-12-17 15:04:48,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19296 states, 15976 states have (on average 1.6322608913370056) internal successors, (26077), 15984 states have internal predecessors, (26077), 3287 states have call successors, (3287), 28 states have call predecessors, (3287), 32 states have return successors, (3626), 3285 states have call predecessors, (3626), 3286 states have call successors, (3626) [2021-12-17 15:04:49,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19296 states to 19296 states and 32990 transitions. [2021-12-17 15:04:49,010 INFO L78 Accepts]: Start accepts. Automaton has 19296 states and 32990 transitions. Word has length 136 [2021-12-17 15:04:49,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:04:49,010 INFO L470 AbstractCegarLoop]: Abstraction has 19296 states and 32990 transitions. [2021-12-17 15:04:49,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:04:49,011 INFO L276 IsEmpty]: Start isEmpty. Operand 19296 states and 32990 transitions. [2021-12-17 15:04:49,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-17 15:04:49,218 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:04:49,218 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:04:49,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-17 15:04:49,219 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:04:49,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:04:49,219 INFO L85 PathProgramCache]: Analyzing trace with hash -495626387, now seen corresponding path program 1 times [2021-12-17 15:04:49,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:04:49,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361830795] [2021-12-17 15:04:49,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:04:49,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:04:49,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:49,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:04:49,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:49,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:04:49,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:49,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:04:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:49,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:04:49,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:49,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:04:49,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:49,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:04:49,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:49,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-17 15:04:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:49,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-17 15:04:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:49,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-17 15:04:49,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:49,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-17 15:04:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:49,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 15:04:49,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:49,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-17 15:04:49,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:49,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-17 15:04:49,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:49,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-17 15:04:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:49,327 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:04:49,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:04:49,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361830795] [2021-12-17 15:04:49,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361830795] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:04:49,328 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:04:49,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:04:49,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953651944] [2021-12-17 15:04:49,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:04:49,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:04:49,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:04:49,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:04:49,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:04:49,331 INFO L87 Difference]: Start difference. First operand 19296 states and 32990 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:04:51,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:04:51,624 INFO L93 Difference]: Finished difference Result 51171 states and 88974 transitions. [2021-12-17 15:04:51,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:04:51,625 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 137 [2021-12-17 15:04:51,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:04:51,800 INFO L225 Difference]: With dead ends: 51171 [2021-12-17 15:04:51,801 INFO L226 Difference]: Without dead ends: 34630 [2021-12-17 15:04:51,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:04:51,858 INFO L933 BasicCegarLoop]: 769 mSDtfsCounter, 1726 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 786 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1745 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 1996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 786 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:04:51,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1745 Valid, 1663 Invalid, 1996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [786 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-17 15:04:51,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34630 states. [2021-12-17 15:04:53,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34630 to 34417. [2021-12-17 15:04:53,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34417 states, 28647 states have (on average 1.62948999895277) internal successors, (46680), 28655 states have internal predecessors, (46680), 5737 states have call successors, (5737), 28 states have call predecessors, (5737), 32 states have return successors, (6350), 5735 states have call predecessors, (6350), 5736 states have call successors, (6350) [2021-12-17 15:04:53,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34417 states to 34417 states and 58767 transitions. [2021-12-17 15:04:53,521 INFO L78 Accepts]: Start accepts. Automaton has 34417 states and 58767 transitions. Word has length 137 [2021-12-17 15:04:53,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:04:53,522 INFO L470 AbstractCegarLoop]: Abstraction has 34417 states and 58767 transitions. [2021-12-17 15:04:53,522 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:04:53,522 INFO L276 IsEmpty]: Start isEmpty. Operand 34417 states and 58767 transitions. [2021-12-17 15:04:53,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-17 15:04:53,560 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:04:53,560 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:04:53,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-17 15:04:53,561 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:04:53,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:04:53,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1168339618, now seen corresponding path program 1 times [2021-12-17 15:04:53,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:04:53,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151751089] [2021-12-17 15:04:53,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:04:53,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:04:53,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:53,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:04:53,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:53,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:04:53,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:53,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:04:53,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:53,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:04:53,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:53,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:04:53,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:53,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:04:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:53,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 15:04:53,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:53,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-17 15:04:53,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:53,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-17 15:04:53,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:53,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-17 15:04:53,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:53,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-17 15:04:53,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:53,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-17 15:04:53,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:53,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-17 15:04:53,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:53,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-17 15:04:53,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:04:53,678 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:04:53,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:04:53,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151751089] [2021-12-17 15:04:53,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151751089] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:04:53,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:04:53,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:04:53,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348338598] [2021-12-17 15:04:53,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:04:53,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:04:53,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:04:53,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:04:53,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:04:53,681 INFO L87 Difference]: Start difference. First operand 34417 states and 58767 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:04:57,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:04:57,257 INFO L93 Difference]: Finished difference Result 94043 states and 162768 transitions. [2021-12-17 15:04:57,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:04:57,258 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 138 [2021-12-17 15:04:57,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:04:57,493 INFO L225 Difference]: With dead ends: 94043 [2021-12-17 15:04:57,494 INFO L226 Difference]: Without dead ends: 63297 [2021-12-17 15:04:57,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:04:57,592 INFO L933 BasicCegarLoop]: 773 mSDtfsCounter, 1723 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 773 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1742 SdHoareTripleChecker+Valid, 1673 SdHoareTripleChecker+Invalid, 1987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 773 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 15:04:57,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1742 Valid, 1673 Invalid, 1987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [773 Valid, 1214 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 15:04:57,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63297 states. [2021-12-17 15:05:00,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63297 to 63084. [2021-12-17 15:05:00,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63084 states, 52801 states have (on average 1.6255563341603378) internal successors, (85831), 52809 states have internal predecessors, (85831), 10250 states have call successors, (10250), 28 states have call predecessors, (10250), 32 states have return successors, (11395), 10248 states have call predecessors, (11395), 10249 states have call successors, (11395) [2021-12-17 15:05:00,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63084 states to 63084 states and 107476 transitions. [2021-12-17 15:05:00,808 INFO L78 Accepts]: Start accepts. Automaton has 63084 states and 107476 transitions. Word has length 138 [2021-12-17 15:05:00,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:05:00,808 INFO L470 AbstractCegarLoop]: Abstraction has 63084 states and 107476 transitions. [2021-12-17 15:05:00,809 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:05:00,809 INFO L276 IsEmpty]: Start isEmpty. Operand 63084 states and 107476 transitions. [2021-12-17 15:05:00,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-12-17 15:05:00,855 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:05:00,855 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:05:00,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-17 15:05:00,856 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:05:00,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:05:00,856 INFO L85 PathProgramCache]: Analyzing trace with hash -602877139, now seen corresponding path program 1 times [2021-12-17 15:05:00,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:05:00,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350823021] [2021-12-17 15:05:00,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:05:00,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:05:00,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:01,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:05:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:01,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:05:01,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:01,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:05:01,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:01,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:05:01,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:01,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:05:01,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:01,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:05:01,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:01,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-17 15:05:01,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:01,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-17 15:05:01,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:01,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-17 15:05:01,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:01,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-17 15:05:01,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:01,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-17 15:05:01,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:01,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-17 15:05:01,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:01,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-17 15:05:01,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:01,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-17 15:05:01,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:01,359 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:05:01,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:05:01,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350823021] [2021-12-17 15:05:01,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350823021] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:05:01,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:05:01,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:05:01,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537665025] [2021-12-17 15:05:01,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:05:01,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:05:01,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:05:01,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:05:01,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:05:01,362 INFO L87 Difference]: Start difference. First operand 63084 states and 107476 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:05:05,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:05:05,672 INFO L93 Difference]: Finished difference Result 118419 states and 205402 transitions. [2021-12-17 15:05:05,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:05:05,672 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 139 [2021-12-17 15:05:05,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:05:06,180 INFO L225 Difference]: With dead ends: 118419 [2021-12-17 15:05:06,180 INFO L226 Difference]: Without dead ends: 118170 [2021-12-17 15:05:06,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-17 15:05:06,248 INFO L933 BasicCegarLoop]: 771 mSDtfsCounter, 1713 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 771 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1732 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 1977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 771 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:05:06,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1732 Valid, 1671 Invalid, 1977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [771 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-17 15:05:06,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118170 states. [2021-12-17 15:05:11,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118170 to 117957. [2021-12-17 15:05:11,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117957 states, 99306 states have (on average 1.6204660342778885) internal successors, (160922), 99314 states have internal predecessors, (160922), 18618 states have call successors, (18618), 28 states have call predecessors, (18618), 32 states have return successors, (20809), 18616 states have call predecessors, (20809), 18617 states have call successors, (20809) [2021-12-17 15:05:11,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117957 states to 117957 states and 200349 transitions. [2021-12-17 15:05:11,959 INFO L78 Accepts]: Start accepts. Automaton has 117957 states and 200349 transitions. Word has length 139 [2021-12-17 15:05:11,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:05:11,960 INFO L470 AbstractCegarLoop]: Abstraction has 117957 states and 200349 transitions. [2021-12-17 15:05:11,960 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-17 15:05:11,960 INFO L276 IsEmpty]: Start isEmpty. Operand 117957 states and 200349 transitions. [2021-12-17 15:05:12,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-12-17 15:05:12,023 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:05:12,023 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:05:12,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-17 15:05:12,024 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:05:12,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:05:12,024 INFO L85 PathProgramCache]: Analyzing trace with hash 52684063, now seen corresponding path program 1 times [2021-12-17 15:05:12,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:05:12,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802010096] [2021-12-17 15:05:12,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:05:12,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:05:12,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:12,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:05:12,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:12,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:05:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:12,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:05:12,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:12,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:05:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:12,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:05:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:12,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:05:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:12,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-17 15:05:12,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:12,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-17 15:05:12,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:12,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-17 15:05:12,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:12,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-17 15:05:12,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:12,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-17 15:05:12,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:12,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-17 15:05:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:12,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-17 15:05:12,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:12,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-17 15:05:12,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:12,253 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:05:12,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:05:12,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802010096] [2021-12-17 15:05:12,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802010096] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:05:12,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:05:12,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-12-17 15:05:12,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058556553] [2021-12-17 15:05:12,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:05:12,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-17 15:05:12,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:05:12,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-17 15:05:12,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-12-17 15:05:12,256 INFO L87 Difference]: Start difference. First operand 117957 states and 200349 transitions. Second operand has 18 states, 16 states have (on average 6.0) internal successors, (96), 12 states have internal predecessors, (96), 6 states have call successors, (17), 7 states have call predecessors, (17), 4 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2021-12-17 15:05:27,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:05:27,436 INFO L93 Difference]: Finished difference Result 236072 states and 412813 transitions. [2021-12-17 15:05:27,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-12-17 15:05:27,437 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 6.0) internal successors, (96), 12 states have internal predecessors, (96), 6 states have call successors, (17), 7 states have call predecessors, (17), 4 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 140 [2021-12-17 15:05:27,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:05:29,042 INFO L225 Difference]: With dead ends: 236072 [2021-12-17 15:05:29,042 INFO L226 Difference]: Without dead ends: 235829 [2021-12-17 15:05:29,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1268 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=872, Invalid=3820, Unknown=0, NotChecked=0, Total=4692 [2021-12-17 15:05:29,160 INFO L933 BasicCegarLoop]: 903 mSDtfsCounter, 6420 mSDsluCounter, 3904 mSDsCounter, 0 mSdLazyCounter, 13555 mSolverCounterSat, 3888 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6420 SdHoareTripleChecker+Valid, 4807 SdHoareTripleChecker+Invalid, 17443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3888 IncrementalHoareTripleChecker+Valid, 13555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:05:29,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6420 Valid, 4807 Invalid, 17443 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3888 Valid, 13555 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2021-12-17 15:05:29,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235829 states.