./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec9_product14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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_spec9_product14.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 b949d09d593112e13964b4b5b0eef0c6cd05359df7437e0305220f7a663828f7 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 00:53:44,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 00:53:44,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 00:53:44,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 00:53:44,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 00:53:44,310 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 00:53:44,311 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 00:53:44,313 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 00:53:44,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 00:53:44,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 00:53:44,318 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 00:53:44,320 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 00:53:44,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 00:53:44,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 00:53:44,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 00:53:44,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 00:53:44,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 00:53:44,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 00:53:44,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 00:53:44,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 00:53:44,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 00:53:44,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 00:53:44,335 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 00:53:44,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 00:53:44,338 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 00:53:44,341 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 00:53:44,341 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 00:53:44,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 00:53:44,342 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 00:53:44,343 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 00:53:44,343 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 00:53:44,344 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 00:53:44,344 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 00:53:44,345 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 00:53:44,346 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 00:53:44,346 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 00:53:44,347 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 00:53:44,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 00:53:44,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 00:53:44,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 00:53:44,348 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 00:53:44,350 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-28 00:53:44,376 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 00:53:44,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 00:53:44,377 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 00:53:44,378 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 00:53:44,378 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 00:53:44,378 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 00:53:44,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 00:53:44,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 00:53:44,379 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 00:53:44,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 00:53:44,380 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 00:53:44,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 00:53:44,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 00:53:44,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 00:53:44,381 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 00:53:44,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 00:53:44,381 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 00:53:44,381 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 00:53:44,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 00:53:44,382 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 00:53:44,382 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 00:53:44,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 00:53:44,382 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 00:53:44,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 00:53:44,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 00:53:44,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 00:53:44,383 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 00:53:44,383 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 00:53:44,383 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 00:53:44,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 00:53:44,383 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 00:53:44,383 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 00:53:44,384 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 00:53:44,384 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b949d09d593112e13964b4b5b0eef0c6cd05359df7437e0305220f7a663828f7 [2021-12-28 00:53:44,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 00:53:44,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 00:53:44,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 00:53:44,608 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 00:53:44,608 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 00:53:44,609 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec9_product14.cil.c [2021-12-28 00:53:44,654 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2789b63ba/899e7da90fa044eeab9cf31982122b6d/FLAGcdf25a3ba [2021-12-28 00:53:45,144 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 00:53:45,145 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec9_product14.cil.c [2021-12-28 00:53:45,178 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2789b63ba/899e7da90fa044eeab9cf31982122b6d/FLAGcdf25a3ba [2021-12-28 00:53:45,682 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2789b63ba/899e7da90fa044eeab9cf31982122b6d [2021-12-28 00:53:45,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 00:53:45,685 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 00:53:45,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 00:53:45,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 00:53:45,701 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 00:53:45,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 12:53:45" (1/1) ... [2021-12-28 00:53:45,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@492ae3de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:53:45, skipping insertion in model container [2021-12-28 00:53:45,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 12:53:45" (1/1) ... [2021-12-28 00:53:45,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 00:53:45,771 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 00:53:46,018 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_spec9_product14.cil.c[8145,8158] [2021-12-28 00:53:46,202 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 00:53:46,212 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 00:53:46,239 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_spec9_product14.cil.c[8145,8158] [2021-12-28 00:53:46,334 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 00:53:46,359 INFO L208 MainTranslator]: Completed translation [2021-12-28 00:53:46,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:53:46 WrapperNode [2021-12-28 00:53:46,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 00:53:46,361 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 00:53:46,362 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 00:53:46,362 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 00:53:46,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:53:46" (1/1) ... [2021-12-28 00:53:46,403 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:53:46" (1/1) ... [2021-12-28 00:53:46,444 INFO L137 Inliner]: procedures = 126, calls = 210, calls flagged for inlining = 51, calls inlined = 43, statements flattened = 905 [2021-12-28 00:53:46,449 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 00:53:46,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 00:53:46,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 00:53:46,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 00:53:46,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:53:46" (1/1) ... [2021-12-28 00:53:46,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:53:46" (1/1) ... [2021-12-28 00:53:46,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:53:46" (1/1) ... [2021-12-28 00:53:46,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:53:46" (1/1) ... [2021-12-28 00:53:46,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:53:46" (1/1) ... [2021-12-28 00:53:46,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:53:46" (1/1) ... [2021-12-28 00:53:46,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:53:46" (1/1) ... [2021-12-28 00:53:46,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 00:53:46,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 00:53:46,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 00:53:46,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 00:53:46,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:53:46" (1/1) ... [2021-12-28 00:53:46,530 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 00:53:46,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:53:46,546 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) [2021-12-28 00:53:46,563 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 [2021-12-28 00:53:46,576 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-28 00:53:46,576 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-28 00:53:46,576 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-12-28 00:53:46,576 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-12-28 00:53:46,576 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-28 00:53:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-28 00:53:46,577 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-12-28 00:53:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-12-28 00:53:46,577 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-28 00:53:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-28 00:53:46,577 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-28 00:53:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-28 00:53:46,577 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-28 00:53:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-28 00:53:46,578 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-12-28 00:53:46,578 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-12-28 00:53:46,578 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-28 00:53:46,578 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-28 00:53:46,578 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-28 00:53:46,578 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-28 00:53:46,578 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-28 00:53:46,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 00:53:46,579 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-28 00:53:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-28 00:53:46,579 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-28 00:53:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-28 00:53:46,579 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-28 00:53:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-28 00:53:46,579 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-28 00:53:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-28 00:53:46,580 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2021-12-28 00:53:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2021-12-28 00:53:46,580 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-28 00:53:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-28 00:53:46,580 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-12-28 00:53:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-12-28 00:53:46,581 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-28 00:53:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-28 00:53:46,581 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-28 00:53:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-28 00:53:46,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 00:53:46,581 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-28 00:53:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-28 00:53:46,581 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-28 00:53:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-28 00:53:46,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 00:53:46,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 00:53:46,774 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 00:53:46,775 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 00:53:47,251 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 00:53:47,261 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 00:53:47,262 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 00:53:47,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 12:53:47 BoogieIcfgContainer [2021-12-28 00:53:47,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 00:53:47,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 00:53:47,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 00:53:47,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 00:53:47,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 12:53:45" (1/3) ... [2021-12-28 00:53:47,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330e2f5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 12:53:47, skipping insertion in model container [2021-12-28 00:53:47,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:53:46" (2/3) ... [2021-12-28 00:53:47,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330e2f5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 12:53:47, skipping insertion in model container [2021-12-28 00:53:47,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 12:53:47" (3/3) ... [2021-12-28 00:53:47,270 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec9_product14.cil.c [2021-12-28 00:53:47,274 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 00:53:47,274 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 00:53:47,312 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 00:53:47,319 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 [2021-12-28 00:53:47,319 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 00:53:47,348 INFO L276 IsEmpty]: Start isEmpty. Operand has 343 states, 268 states have (on average 1.585820895522388) internal successors, (425), 273 states have internal predecessors, (425), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2021-12-28 00:53:47,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-28 00:53:47,364 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:47,364 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] [2021-12-28 00:53:47,365 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:47,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:47,368 INFO L85 PathProgramCache]: Analyzing trace with hash 363460128, now seen corresponding path program 1 times [2021-12-28 00:53:47,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:47,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901984009] [2021-12-28 00:53:47,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:47,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:47,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:47,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:47,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:47,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:47,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:47,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:47,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 00:53:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:47,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 00:53:47,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:47,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 00:53:47,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:47,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 00:53:47,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:47,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 00:53:47,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:47,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 00:53:47,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:47,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 00:53:47,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:47,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 00:53:47,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:47,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 00:53:47,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:47,762 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-28 00:53:47,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:47,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901984009] [2021-12-28 00:53:47,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901984009] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:53:47,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417211917] [2021-12-28 00:53:47,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:47,766 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:53:47,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:53:47,768 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) [2021-12-28 00:53:47,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-28 00:53:48,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:48,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-28 00:53:48,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:53:48,219 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-28 00:53:48,220 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:53:48,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417211917] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:53:48,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:53:48,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-12-28 00:53:48,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003326220] [2021-12-28 00:53:48,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:53:48,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-28 00:53:48,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:48,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-28 00:53:48,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:53:48,245 INFO L87 Difference]: Start difference. First operand has 343 states, 268 states have (on average 1.585820895522388) internal successors, (425), 273 states have internal predecessors, (425), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:53:48,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:53:48,281 INFO L93 Difference]: Finished difference Result 498 states and 756 transitions. [2021-12-28 00:53:48,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-28 00:53:48,283 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2021-12-28 00:53:48,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:53:48,291 INFO L225 Difference]: With dead ends: 498 [2021-12-28 00:53:48,292 INFO L226 Difference]: Without dead ends: 336 [2021-12-28 00:53:48,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:53:48,301 INFO L933 BasicCegarLoop]: 525 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, 525 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 [2021-12-28 00:53:48,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:53:48,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2021-12-28 00:53:48,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2021-12-28 00:53:48,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 262 states have (on average 1.5801526717557253) internal successors, (414), 266 states have internal predecessors, (414), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2021-12-28 00:53:48,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 517 transitions. [2021-12-28 00:53:48,343 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 517 transitions. Word has length 98 [2021-12-28 00:53:48,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:53:48,344 INFO L470 AbstractCegarLoop]: Abstraction has 336 states and 517 transitions. [2021-12-28 00:53:48,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:53:48,344 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 517 transitions. [2021-12-28 00:53:48,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-28 00:53:48,347 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:48,347 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] [2021-12-28 00:53:48,365 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-28 00:53:48,553 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 [2021-12-28 00:53:48,554 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:48,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:48,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1382784013, now seen corresponding path program 1 times [2021-12-28 00:53:48,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:48,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699944308] [2021-12-28 00:53:48,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:48,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:48,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:48,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:48,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:48,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:48,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:48,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:48,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 00:53:48,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:48,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 00:53:48,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:48,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 00:53:48,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:48,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-28 00:53:48,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:48,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 00:53:48,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:48,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 00:53:48,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:48,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 00:53:48,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:48,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 00:53:48,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:48,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 00:53:48,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:48,741 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-28 00:53:48,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:48,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699944308] [2021-12-28 00:53:48,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699944308] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:53:48,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172294913] [2021-12-28 00:53:48,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:48,746 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:53:48,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:53:48,747 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) [2021-12-28 00:53:48,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-28 00:53:48,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:48,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-28 00:53:48,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:53:49,097 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-28 00:53:49,098 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:53:49,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172294913] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:53:49,098 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:53:49,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-28 00:53:49,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761463967] [2021-12-28 00:53:49,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:53:49,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 00:53:49,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:49,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 00:53:49,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:53:49,101 INFO L87 Difference]: Start difference. First operand 336 states and 517 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:53:49,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:53:49,135 INFO L93 Difference]: Finished difference Result 488 states and 734 transitions. [2021-12-28 00:53:49,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 00:53:49,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 99 [2021-12-28 00:53:49,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:53:49,138 INFO L225 Difference]: With dead ends: 488 [2021-12-28 00:53:49,138 INFO L226 Difference]: Without dead ends: 339 [2021-12-28 00:53:49,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:53:49,139 INFO L933 BasicCegarLoop]: 515 mSDtfsCounter, 1 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1028 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 [2021-12-28 00:53:49,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1028 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:53:49,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2021-12-28 00:53:49,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 338. [2021-12-28 00:53:49,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 264 states have (on average 1.5757575757575757) internal successors, (416), 268 states have internal predecessors, (416), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2021-12-28 00:53:49,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 519 transitions. [2021-12-28 00:53:49,162 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 519 transitions. Word has length 99 [2021-12-28 00:53:49,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:53:49,163 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 519 transitions. [2021-12-28 00:53:49,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:53:49,163 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 519 transitions. [2021-12-28 00:53:49,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-28 00:53:49,165 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:49,166 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] [2021-12-28 00:53:49,185 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-28 00:53:49,371 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 [2021-12-28 00:53:49,371 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:49,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:49,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1526113252, now seen corresponding path program 1 times [2021-12-28 00:53:49,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:49,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942786571] [2021-12-28 00:53:49,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:49,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:49,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:49,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:49,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:49,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:49,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:49,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 00:53:49,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:49,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 00:53:49,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:49,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 00:53:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:49,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-28 00:53:49,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:49,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-28 00:53:49,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:49,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-28 00:53:49,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:49,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 00:53:49,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:49,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 00:53:49,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:49,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-28 00:53:49,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:49,513 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 00:53:49,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:49,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942786571] [2021-12-28 00:53:49,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942786571] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:53:49,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1933604815] [2021-12-28 00:53:49,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:49,516 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:53:49,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:53:49,517 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) [2021-12-28 00:53:49,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-28 00:53:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:49,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 1013 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-28 00:53:49,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:53:49,856 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-28 00:53:49,857 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:53:49,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1933604815] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:53:49,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:53:49,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-28 00:53:49,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789814620] [2021-12-28 00:53:49,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:53:49,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 00:53:49,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:49,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 00:53:49,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:53:49,859 INFO L87 Difference]: Start difference. First operand 338 states and 519 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:53:49,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:53:49,876 INFO L93 Difference]: Finished difference Result 719 states and 1122 transitions. [2021-12-28 00:53:49,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 00:53:49,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 105 [2021-12-28 00:53:49,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:53:49,879 INFO L225 Difference]: With dead ends: 719 [2021-12-28 00:53:49,880 INFO L226 Difference]: Without dead ends: 408 [2021-12-28 00:53:49,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:53:49,881 INFO L933 BasicCegarLoop]: 540 mSDtfsCounter, 126 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1012 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 [2021-12-28 00:53:49,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 1012 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:53:49,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2021-12-28 00:53:49,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 400. [2021-12-28 00:53:49,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 312 states have (on average 1.5929487179487178) internal successors, (497), 316 states have internal predecessors, (497), 66 states have call successors, (66), 21 states have call predecessors, (66), 21 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2021-12-28 00:53:49,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 628 transitions. [2021-12-28 00:53:49,899 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 628 transitions. Word has length 105 [2021-12-28 00:53:49,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:53:49,899 INFO L470 AbstractCegarLoop]: Abstraction has 400 states and 628 transitions. [2021-12-28 00:53:49,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:53:49,899 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 628 transitions. [2021-12-28 00:53:49,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-28 00:53:49,901 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:49,901 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] [2021-12-28 00:53:49,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-28 00:53:50,120 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 [2021-12-28 00:53:50,121 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:50,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:50,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1151846179, now seen corresponding path program 1 times [2021-12-28 00:53:50,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:50,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858731497] [2021-12-28 00:53:50,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:50,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:50,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:50,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:50,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:50,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:50,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:50,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 00:53:50,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:50,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 00:53:50,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:50,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 00:53:50,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:50,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-28 00:53:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:50,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-28 00:53:50,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:50,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 00:53:50,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:50,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 00:53:50,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:50,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 00:53:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:50,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 00:53:50,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:50,223 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 00:53:50,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:50,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858731497] [2021-12-28 00:53:50,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858731497] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:53:50,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457324346] [2021-12-28 00:53:50,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:50,226 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:53:50,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:53:50,227 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) [2021-12-28 00:53:50,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-28 00:53:50,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:50,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-28 00:53:50,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:53:50,570 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-28 00:53:50,570 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:53:50,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457324346] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:53:50,570 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:53:50,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-28 00:53:50,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910154036] [2021-12-28 00:53:50,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:53:50,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 00:53:50,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:50,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 00:53:50,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-28 00:53:50,572 INFO L87 Difference]: Start difference. First operand 400 states and 628 transitions. Second operand has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:53:50,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:53:50,621 INFO L93 Difference]: Finished difference Result 791 states and 1246 transitions. [2021-12-28 00:53:50,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 00:53:50,622 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 106 [2021-12-28 00:53:50,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:53:50,624 INFO L225 Difference]: With dead ends: 791 [2021-12-28 00:53:50,624 INFO L226 Difference]: Without dead ends: 402 [2021-12-28 00:53:50,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:53:50,626 INFO L933 BasicCegarLoop]: 508 mSDtfsCounter, 144 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 1866 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 [2021-12-28 00:53:50,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 1866 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:53:50,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2021-12-28 00:53:50,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2021-12-28 00:53:50,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 313 states have (on average 1.5910543130990416) internal successors, (498), 318 states have internal predecessors, (498), 66 states have call successors, (66), 21 states have call predecessors, (66), 22 states have return successors, (67), 64 states have call predecessors, (67), 65 states have call successors, (67) [2021-12-28 00:53:50,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 631 transitions. [2021-12-28 00:53:50,640 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 631 transitions. Word has length 106 [2021-12-28 00:53:50,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:53:50,640 INFO L470 AbstractCegarLoop]: Abstraction has 402 states and 631 transitions. [2021-12-28 00:53:50,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:53:50,641 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 631 transitions. [2021-12-28 00:53:50,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-28 00:53:50,642 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:50,642 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] [2021-12-28 00:53:50,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-28 00:53:50,861 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 [2021-12-28 00:53:50,862 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:50,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:50,862 INFO L85 PathProgramCache]: Analyzing trace with hash 800636676, now seen corresponding path program 1 times [2021-12-28 00:53:50,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:50,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536307627] [2021-12-28 00:53:50,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:50,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:50,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:50,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:50,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:50,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:50,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:50,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:50,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:53:50,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:50,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-28 00:53:50,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:50,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-28 00:53:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:50,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 00:53:50,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:50,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 00:53:50,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:50,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 00:53:50,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:50,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-28 00:53:50,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:50,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 00:53:50,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:50,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 00:53:50,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:50,998 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-28 00:53:50,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:50,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536307627] [2021-12-28 00:53:50,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536307627] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:53:50,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750656404] [2021-12-28 00:53:50,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:50,999 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:53:51,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:53:51,000 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) [2021-12-28 00:53:51,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-28 00:53:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:51,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 1021 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-28 00:53:51,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:53:51,317 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-28 00:53:51,317 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:53:51,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750656404] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:53:51,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:53:51,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-28 00:53:51,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812758134] [2021-12-28 00:53:51,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:53:51,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 00:53:51,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:51,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 00:53:51,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-12-28 00:53:51,319 INFO L87 Difference]: Start difference. First operand 402 states and 631 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:53:51,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:53:51,368 INFO L93 Difference]: Finished difference Result 793 states and 1251 transitions. [2021-12-28 00:53:51,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 00:53:51,368 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 107 [2021-12-28 00:53:51,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:53:51,370 INFO L225 Difference]: With dead ends: 793 [2021-12-28 00:53:51,370 INFO L226 Difference]: Without dead ends: 404 [2021-12-28 00:53:51,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-12-28 00:53:51,372 INFO L933 BasicCegarLoop]: 506 mSDtfsCounter, 143 mSDsluCounter, 1349 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 1855 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 [2021-12-28 00:53:51,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 1855 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:53:51,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2021-12-28 00:53:51,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2021-12-28 00:53:51,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 314 states have (on average 1.589171974522293) internal successors, (499), 320 states have internal predecessors, (499), 66 states have call successors, (66), 21 states have call predecessors, (66), 23 states have return successors, (72), 64 states have call predecessors, (72), 65 states have call successors, (72) [2021-12-28 00:53:51,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 637 transitions. [2021-12-28 00:53:51,385 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 637 transitions. Word has length 107 [2021-12-28 00:53:51,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:53:51,386 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 637 transitions. [2021-12-28 00:53:51,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:53:51,386 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 637 transitions. [2021-12-28 00:53:51,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-28 00:53:51,388 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:51,388 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] [2021-12-28 00:53:51,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-28 00:53:51,594 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 [2021-12-28 00:53:51,595 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:51,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:51,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1770342286, now seen corresponding path program 1 times [2021-12-28 00:53:51,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:51,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617939330] [2021-12-28 00:53:51,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:51,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:51,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:51,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:51,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:51,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:51,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:51,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:53:51,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:51,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:53:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:51,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 00:53:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:51,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-28 00:53:51,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:51,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 00:53:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:51,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 00:53:51,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:51,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 00:53:51,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:51,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-28 00:53:51,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:51,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-28 00:53:51,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:51,688 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 00:53:51,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:51,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617939330] [2021-12-28 00:53:51,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617939330] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:53:51,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:53:51,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 00:53:51,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778150495] [2021-12-28 00:53:51,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:53:51,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 00:53:51,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:51,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 00:53:51,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:53:51,690 INFO L87 Difference]: Start difference. First operand 404 states and 637 transitions. Second operand has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:53:52,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:53:52,834 INFO L93 Difference]: Finished difference Result 867 states and 1386 transitions. [2021-12-28 00:53:52,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-28 00:53:52,835 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 108 [2021-12-28 00:53:52,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:53:52,838 INFO L225 Difference]: With dead ends: 867 [2021-12-28 00:53:52,838 INFO L226 Difference]: Without dead ends: 486 [2021-12-28 00:53:52,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-28 00:53:52,839 INFO L933 BasicCegarLoop]: 555 mSDtfsCounter, 1208 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 1758 mSolverCounterSat, 408 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 2166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 1758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:53:52,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1228 Valid, 1493 Invalid, 2166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [408 Valid, 1758 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-28 00:53:52,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2021-12-28 00:53:52,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 404. [2021-12-28 00:53:52,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 314 states have (on average 1.589171974522293) internal successors, (499), 320 states have internal predecessors, (499), 66 states have call successors, (66), 21 states have call predecessors, (66), 23 states have return successors, (71), 64 states have call predecessors, (71), 65 states have call successors, (71) [2021-12-28 00:53:52,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 636 transitions. [2021-12-28 00:53:52,874 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 636 transitions. Word has length 108 [2021-12-28 00:53:52,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:53:52,875 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 636 transitions. [2021-12-28 00:53:52,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:53:52,875 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 636 transitions. [2021-12-28 00:53:52,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-28 00:53:52,876 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:52,877 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] [2021-12-28 00:53:52,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 00:53:52,877 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:52,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:52,877 INFO L85 PathProgramCache]: Analyzing trace with hash 954565969, now seen corresponding path program 2 times [2021-12-28 00:53:52,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:52,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198832369] [2021-12-28 00:53:52,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:52,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:52,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:52,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:52,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:52,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:52,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:52,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:52,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:53:52,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:52,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:53:52,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:52,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-28 00:53:52,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:52,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 00:53:52,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:52,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-28 00:53:52,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:52,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 00:53:52,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:52,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-28 00:53:52,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:52,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 00:53:52,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:52,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-28 00:53:52,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:52,957 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 00:53:52,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:52,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198832369] [2021-12-28 00:53:52,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198832369] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:53:52,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:53:52,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 00:53:52,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111408764] [2021-12-28 00:53:52,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:53:52,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 00:53:52,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:52,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 00:53:52,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:53:52,959 INFO L87 Difference]: Start difference. First operand 404 states and 636 transitions. Second operand has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:53:54,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:53:54,087 INFO L93 Difference]: Finished difference Result 869 states and 1389 transitions. [2021-12-28 00:53:54,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-28 00:53:54,088 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 109 [2021-12-28 00:53:54,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:53:54,090 INFO L225 Difference]: With dead ends: 869 [2021-12-28 00:53:54,091 INFO L226 Difference]: Without dead ends: 488 [2021-12-28 00:53:54,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-28 00:53:54,092 INFO L933 BasicCegarLoop]: 557 mSDtfsCounter, 1203 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 1764 mSolverCounterSat, 404 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1224 SdHoareTripleChecker+Valid, 1495 SdHoareTripleChecker+Invalid, 2168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 404 IncrementalHoareTripleChecker+Valid, 1764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:53:54,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1224 Valid, 1495 Invalid, 2168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [404 Valid, 1764 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-28 00:53:54,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2021-12-28 00:53:54,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 406. [2021-12-28 00:53:54,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 315 states have (on average 1.5873015873015872) internal successors, (500), 322 states have internal predecessors, (500), 66 states have call successors, (66), 21 states have call predecessors, (66), 24 states have return successors, (73), 64 states have call predecessors, (73), 65 states have call successors, (73) [2021-12-28 00:53:54,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 639 transitions. [2021-12-28 00:53:54,116 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 639 transitions. Word has length 109 [2021-12-28 00:53:54,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:53:54,116 INFO L470 AbstractCegarLoop]: Abstraction has 406 states and 639 transitions. [2021-12-28 00:53:54,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:53:54,116 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 639 transitions. [2021-12-28 00:53:54,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-28 00:53:54,118 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:54,118 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] [2021-12-28 00:53:54,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-28 00:53:54,118 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:54,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:54,119 INFO L85 PathProgramCache]: Analyzing trace with hash 245616583, now seen corresponding path program 1 times [2021-12-28 00:53:54,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:54,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459203319] [2021-12-28 00:53:54,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:54,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:54,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:54,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:54,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:54,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:54,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:54,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:53:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:54,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:53:54,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:54,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:53:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:54,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-28 00:53:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:54,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-28 00:53:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:54,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 00:53:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:54,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 00:53:54,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:54,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 00:53:54,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:54,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 00:53:54,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:54,209 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 00:53:54,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:54,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459203319] [2021-12-28 00:53:54,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459203319] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:53:54,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:53:54,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 00:53:54,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098371146] [2021-12-28 00:53:54,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:53:54,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 00:53:54,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:54,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 00:53:54,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:53:54,211 INFO L87 Difference]: Start difference. First operand 406 states and 639 transitions. Second operand has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:53:55,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:53:55,413 INFO L93 Difference]: Finished difference Result 869 states and 1388 transitions. [2021-12-28 00:53:55,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-28 00:53:55,413 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 110 [2021-12-28 00:53:55,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:53:55,416 INFO L225 Difference]: With dead ends: 869 [2021-12-28 00:53:55,416 INFO L226 Difference]: Without dead ends: 488 [2021-12-28 00:53:55,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2021-12-28 00:53:55,417 INFO L933 BasicCegarLoop]: 551 mSDtfsCounter, 1205 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 1737 mSolverCounterSat, 407 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1225 SdHoareTripleChecker+Valid, 1489 SdHoareTripleChecker+Invalid, 2144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 407 IncrementalHoareTripleChecker+Valid, 1737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:53:55,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1225 Valid, 1489 Invalid, 2144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [407 Valid, 1737 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-28 00:53:55,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2021-12-28 00:53:55,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 406. [2021-12-28 00:53:55,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 315 states have (on average 1.5873015873015872) internal successors, (500), 322 states have internal predecessors, (500), 66 states have call successors, (66), 21 states have call predecessors, (66), 24 states have return successors, (73), 64 states have call predecessors, (73), 65 states have call successors, (73) [2021-12-28 00:53:55,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 639 transitions. [2021-12-28 00:53:55,434 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 639 transitions. Word has length 110 [2021-12-28 00:53:55,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:53:55,434 INFO L470 AbstractCegarLoop]: Abstraction has 406 states and 639 transitions. [2021-12-28 00:53:55,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 00:53:55,435 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 639 transitions. [2021-12-28 00:53:55,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-28 00:53:55,436 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:55,436 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] [2021-12-28 00:53:55,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-28 00:53:55,437 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:55,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:55,437 INFO L85 PathProgramCache]: Analyzing trace with hash -641606263, now seen corresponding path program 1 times [2021-12-28 00:53:55,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:55,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289006150] [2021-12-28 00:53:55,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:55,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:55,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:55,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:55,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:55,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:55,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:55,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:55,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:55,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:53:55,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:55,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:53:55,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:55,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:53:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:55,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-28 00:53:55,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:55,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-28 00:53:55,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:55,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 00:53:55,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:55,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 00:53:55,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:55,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 00:53:55,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:55,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 00:53:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:55,536 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-28 00:53:55,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:55,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289006150] [2021-12-28 00:53:55,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289006150] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:53:55,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:53:55,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-28 00:53:55,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752096201] [2021-12-28 00:53:55,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:53:55,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 00:53:55,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:55,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 00:53:55,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-28 00:53:55,539 INFO L87 Difference]: Start difference. First operand 406 states and 639 transitions. Second operand has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-28 00:53:57,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:53:57,049 INFO L93 Difference]: Finished difference Result 867 states and 1383 transitions. [2021-12-28 00:53:57,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-28 00:53:57,050 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 110 [2021-12-28 00:53:57,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:53:57,052 INFO L225 Difference]: With dead ends: 867 [2021-12-28 00:53:57,052 INFO L226 Difference]: Without dead ends: 488 [2021-12-28 00:53:57,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-28 00:53:57,054 INFO L933 BasicCegarLoop]: 538 mSDtfsCounter, 1334 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 3166 mSolverCounterSat, 463 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 1840 SdHoareTripleChecker+Invalid, 3629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 463 IncrementalHoareTripleChecker+Valid, 3166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-28 00:53:57,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1334 Valid, 1840 Invalid, 3629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [463 Valid, 3166 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-28 00:53:57,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2021-12-28 00:53:57,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 406. [2021-12-28 00:53:57,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 315 states have (on average 1.5873015873015872) internal successors, (500), 322 states have internal predecessors, (500), 66 states have call successors, (66), 21 states have call predecessors, (66), 24 states have return successors, (72), 64 states have call predecessors, (72), 65 states have call successors, (72) [2021-12-28 00:53:57,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 638 transitions. [2021-12-28 00:53:57,079 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 638 transitions. Word has length 110 [2021-12-28 00:53:57,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:53:57,079 INFO L470 AbstractCegarLoop]: Abstraction has 406 states and 638 transitions. [2021-12-28 00:53:57,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-28 00:53:57,080 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 638 transitions. [2021-12-28 00:53:57,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-28 00:53:57,081 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:57,081 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] [2021-12-28 00:53:57,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-28 00:53:57,082 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:57,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:57,082 INFO L85 PathProgramCache]: Analyzing trace with hash 78260293, now seen corresponding path program 2 times [2021-12-28 00:53:57,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:57,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947080808] [2021-12-28 00:53:57,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:57,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:57,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:57,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:57,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:57,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:57,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:57,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:57,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:57,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:53:57,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:57,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:53:57,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:57,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:53:57,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:57,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-28 00:53:57,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:57,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-28 00:53:57,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:57,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 00:53:57,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:57,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 00:53:57,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:57,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-28 00:53:57,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:57,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 00:53:57,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:57,175 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-28 00:53:57,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:57,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947080808] [2021-12-28 00:53:57,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947080808] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:53:57,176 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:53:57,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-28 00:53:57,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293545215] [2021-12-28 00:53:57,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:53:57,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 00:53:57,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:57,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 00:53:57,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-28 00:53:57,177 INFO L87 Difference]: Start difference. First operand 406 states and 638 transitions. Second operand has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-28 00:53:58,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:53:58,749 INFO L93 Difference]: Finished difference Result 869 states and 1389 transitions. [2021-12-28 00:53:58,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-28 00:53:58,750 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 111 [2021-12-28 00:53:58,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:53:58,752 INFO L225 Difference]: With dead ends: 869 [2021-12-28 00:53:58,752 INFO L226 Difference]: Without dead ends: 490 [2021-12-28 00:53:58,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-28 00:53:58,754 INFO L933 BasicCegarLoop]: 537 mSDtfsCounter, 1332 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 3169 mSolverCounterSat, 468 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1332 SdHoareTripleChecker+Valid, 1839 SdHoareTripleChecker+Invalid, 3637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 468 IncrementalHoareTripleChecker+Valid, 3169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-28 00:53:58,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1332 Valid, 1839 Invalid, 3637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [468 Valid, 3169 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-28 00:53:58,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2021-12-28 00:53:58,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 408. [2021-12-28 00:53:58,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 316 states have (on average 1.5854430379746836) internal successors, (501), 324 states have internal predecessors, (501), 66 states have call successors, (66), 21 states have call predecessors, (66), 25 states have return successors, (77), 64 states have call predecessors, (77), 65 states have call successors, (77) [2021-12-28 00:53:58,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 644 transitions. [2021-12-28 00:53:58,770 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 644 transitions. Word has length 111 [2021-12-28 00:53:58,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:53:58,770 INFO L470 AbstractCegarLoop]: Abstraction has 408 states and 644 transitions. [2021-12-28 00:53:58,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-28 00:53:58,771 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 644 transitions. [2021-12-28 00:53:58,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-28 00:53:58,772 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:58,772 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] [2021-12-28 00:53:58,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-28 00:53:58,772 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:58,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:58,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1156653796, now seen corresponding path program 1 times [2021-12-28 00:53:58,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:58,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318853308] [2021-12-28 00:53:58,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:58,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:58,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:58,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:58,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:58,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:58,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:58,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:58,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:53:58,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:58,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:53:58,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:58,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:53:58,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:58,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 00:53:58,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:58,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 00:53:58,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:58,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-28 00:53:58,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:58,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 00:53:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:58,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-28 00:53:58,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:58,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 00:53:58,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:58,842 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:53:58,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:58,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318853308] [2021-12-28 00:53:58,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318853308] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:53:58,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935394772] [2021-12-28 00:53:58,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:58,843 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:53:58,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:53:58,848 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) [2021-12-28 00:53:58,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-28 00:53:59,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:59,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-28 00:53:59,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:53:59,147 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:53:59,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 00:53:59,327 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:53:59,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935394772] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 00:53:59,327 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 00:53:59,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2021-12-28 00:53:59,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236374645] [2021-12-28 00:53:59,327 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 00:53:59,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-28 00:53:59,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:59,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-28 00:53:59,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-28 00:53:59,328 INFO L87 Difference]: Start difference. First operand 408 states and 644 transitions. Second operand has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 7 states have internal predecessors, (105), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-28 00:54:00,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:00,494 INFO L93 Difference]: Finished difference Result 1056 states and 1758 transitions. [2021-12-28 00:54:00,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-28 00:54:00,494 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 7 states have internal predecessors, (105), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 112 [2021-12-28 00:54:00,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:00,498 INFO L225 Difference]: With dead ends: 1056 [2021-12-28 00:54:00,498 INFO L226 Difference]: Without dead ends: 907 [2021-12-28 00:54:00,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2021-12-28 00:54:00,499 INFO L933 BasicCegarLoop]: 639 mSDtfsCounter, 1662 mSDsluCounter, 1347 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 632 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1719 SdHoareTripleChecker+Valid, 1986 SdHoareTripleChecker+Invalid, 1867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 632 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:00,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1719 Valid, 1986 Invalid, 1867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [632 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-28 00:54:00,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2021-12-28 00:54:00,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 801. [2021-12-28 00:54:00,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 630 states have (on average 1.6412698412698412) internal successors, (1034), 638 states have internal predecessors, (1034), 145 states have call successors, (145), 21 states have call predecessors, (145), 25 states have return successors, (166), 143 states have call predecessors, (166), 144 states have call successors, (166) [2021-12-28 00:54:00,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1345 transitions. [2021-12-28 00:54:00,528 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1345 transitions. Word has length 112 [2021-12-28 00:54:00,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:00,528 INFO L470 AbstractCegarLoop]: Abstraction has 801 states and 1345 transitions. [2021-12-28 00:54:00,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 7 states have internal predecessors, (105), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-28 00:54:00,529 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1345 transitions. [2021-12-28 00:54:00,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-28 00:54:00,531 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:00,531 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] [2021-12-28 00:54:00,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-28 00:54:00,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:54:00,740 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:00,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:00,740 INFO L85 PathProgramCache]: Analyzing trace with hash -801695193, now seen corresponding path program 1 times [2021-12-28 00:54:00,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:00,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699807325] [2021-12-28 00:54:00,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:00,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:00,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:00,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:00,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:00,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:00,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:00,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:00,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:00,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:00,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:00,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:00,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:00,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:00,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 00:54:00,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:00,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 00:54:00,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:00,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-28 00:54:00,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:00,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 00:54:00,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:00,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 00:54:00,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:00,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-28 00:54:00,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:00,813 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:00,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:00,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699807325] [2021-12-28 00:54:00,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699807325] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:00,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:00,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:54:00,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060620522] [2021-12-28 00:54:00,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:00,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:54:00,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:00,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:54:00,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:54:00,815 INFO L87 Difference]: Start difference. First operand 801 states and 1345 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:01,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:01,743 INFO L93 Difference]: Finished difference Result 2014 states and 3463 transitions. [2021-12-28 00:54:01,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:54:01,744 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2021-12-28 00:54:01,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:01,749 INFO L225 Difference]: With dead ends: 2014 [2021-12-28 00:54:01,749 INFO L226 Difference]: Without dead ends: 1281 [2021-12-28 00:54:01,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:01,751 INFO L933 BasicCegarLoop]: 595 mSDtfsCounter, 1202 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 471 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1221 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 471 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:01,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1221 Valid, 1370 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [471 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-28 00:54:01,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2021-12-28 00:54:01,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 1191. [2021-12-28 00:54:01,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1191 states, 941 states have (on average 1.6514346439957492) internal successors, (1554), 949 states have internal predecessors, (1554), 224 states have call successors, (224), 21 states have call predecessors, (224), 25 states have return successors, (255), 222 states have call predecessors, (255), 223 states have call successors, (255) [2021-12-28 00:54:01,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1191 states to 1191 states and 2033 transitions. [2021-12-28 00:54:01,812 INFO L78 Accepts]: Start accepts. Automaton has 1191 states and 2033 transitions. Word has length 118 [2021-12-28 00:54:01,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:01,812 INFO L470 AbstractCegarLoop]: Abstraction has 1191 states and 2033 transitions. [2021-12-28 00:54:01,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:01,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1191 states and 2033 transitions. [2021-12-28 00:54:01,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-28 00:54:01,817 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:01,817 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] [2021-12-28 00:54:01,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-28 00:54:01,817 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:01,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:01,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1955977789, now seen corresponding path program 1 times [2021-12-28 00:54:01,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:01,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636224156] [2021-12-28 00:54:01,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:01,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:01,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:01,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:01,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:01,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:01,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:01,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:01,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:01,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:01,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:01,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:01,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:01,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:01,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-28 00:54:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:01,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 00:54:01,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:01,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 00:54:01,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:01,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 00:54:01,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:01,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 00:54:01,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:01,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-28 00:54:01,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:01,910 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:01,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:01,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636224156] [2021-12-28 00:54:01,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636224156] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:01,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:01,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:54:01,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032337673] [2021-12-28 00:54:01,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:01,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:54:01,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:01,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:54:01,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:54:01,912 INFO L87 Difference]: Start difference. First operand 1191 states and 2033 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:02,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:02,837 INFO L93 Difference]: Finished difference Result 2963 states and 5137 transitions. [2021-12-28 00:54:02,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:54:02,838 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2021-12-28 00:54:02,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:02,844 INFO L225 Difference]: With dead ends: 2963 [2021-12-28 00:54:02,844 INFO L226 Difference]: Without dead ends: 1893 [2021-12-28 00:54:02,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:02,847 INFO L933 BasicCegarLoop]: 588 mSDtfsCounter, 1198 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 464 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1216 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 464 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:02,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1216 Valid, 1344 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [464 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-28 00:54:02,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1893 states. [2021-12-28 00:54:02,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1893 to 1803. [2021-12-28 00:54:02,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1803 states, 1434 states have (on average 1.6576011157601116) internal successors, (2377), 1442 states have internal predecessors, (2377), 343 states have call successors, (343), 21 states have call predecessors, (343), 25 states have return successors, (374), 341 states have call predecessors, (374), 342 states have call successors, (374) [2021-12-28 00:54:02,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1803 states to 1803 states and 3094 transitions. [2021-12-28 00:54:02,916 INFO L78 Accepts]: Start accepts. Automaton has 1803 states and 3094 transitions. Word has length 119 [2021-12-28 00:54:02,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:02,916 INFO L470 AbstractCegarLoop]: Abstraction has 1803 states and 3094 transitions. [2021-12-28 00:54:02,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:02,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1803 states and 3094 transitions. [2021-12-28 00:54:02,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-28 00:54:02,923 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:02,923 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] [2021-12-28 00:54:02,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-28 00:54:02,924 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:02,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:02,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1049418757, now seen corresponding path program 1 times [2021-12-28 00:54:02,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:02,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269868468] [2021-12-28 00:54:02,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:02,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:02,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:02,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:02,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:02,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:02,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:02,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:02,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:02,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:02,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:02,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:02,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:02,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 00:54:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:02,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 00:54:02,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:02,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 00:54:02,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:02,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 00:54:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:02,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 00:54:02,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:02,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-28 00:54:02,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:03,007 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:03,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:03,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269868468] [2021-12-28 00:54:03,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269868468] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:03,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:03,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:54:03,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001188444] [2021-12-28 00:54:03,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:03,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:54:03,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:03,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:54:03,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:54:03,009 INFO L87 Difference]: Start difference. First operand 1803 states and 3094 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:03,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:03,919 INFO L93 Difference]: Finished difference Result 4388 states and 7671 transitions. [2021-12-28 00:54:03,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:54:03,919 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2021-12-28 00:54:03,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:03,929 INFO L225 Difference]: With dead ends: 4388 [2021-12-28 00:54:03,930 INFO L226 Difference]: Without dead ends: 2831 [2021-12-28 00:54:03,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:03,934 INFO L933 BasicCegarLoop]: 579 mSDtfsCounter, 1196 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 458 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1214 SdHoareTripleChecker+Valid, 1309 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 458 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:03,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1214 Valid, 1309 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [458 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-28 00:54:03,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states. [2021-12-28 00:54:04,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 2741. [2021-12-28 00:54:04,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2741 states, 2210 states have (on average 1.66289592760181) internal successors, (3675), 2218 states have internal predecessors, (3675), 505 states have call successors, (505), 21 states have call predecessors, (505), 25 states have return successors, (552), 503 states have call predecessors, (552), 504 states have call successors, (552) [2021-12-28 00:54:04,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2741 states to 2741 states and 4732 transitions. [2021-12-28 00:54:04,042 INFO L78 Accepts]: Start accepts. Automaton has 2741 states and 4732 transitions. Word has length 120 [2021-12-28 00:54:04,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:04,043 INFO L470 AbstractCegarLoop]: Abstraction has 2741 states and 4732 transitions. [2021-12-28 00:54:04,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:04,043 INFO L276 IsEmpty]: Start isEmpty. Operand 2741 states and 4732 transitions. [2021-12-28 00:54:04,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-28 00:54:04,053 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:04,053 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] [2021-12-28 00:54:04,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-28 00:54:04,054 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:04,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:04,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1243441026, now seen corresponding path program 1 times [2021-12-28 00:54:04,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:04,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029184111] [2021-12-28 00:54:04,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:04,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:04,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:04,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:04,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:04,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:04,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:04,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:04,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 00:54:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-28 00:54:04,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 00:54:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-28 00:54:04,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 00:54:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 00:54:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:04,158 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:04,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:04,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029184111] [2021-12-28 00:54:04,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029184111] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:04,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:04,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:54:04,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586541597] [2021-12-28 00:54:04,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:04,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:54:04,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:04,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:54:04,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:54:04,161 INFO L87 Difference]: Start difference. First operand 2741 states and 4732 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:05,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:05,129 INFO L93 Difference]: Finished difference Result 6637 states and 11680 transitions. [2021-12-28 00:54:05,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:54:05,131 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2021-12-28 00:54:05,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:05,147 INFO L225 Difference]: With dead ends: 6637 [2021-12-28 00:54:05,148 INFO L226 Difference]: Without dead ends: 4346 [2021-12-28 00:54:05,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:05,162 INFO L933 BasicCegarLoop]: 582 mSDtfsCounter, 1193 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 464 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1211 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 464 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:05,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1211 Valid, 1312 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [464 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-28 00:54:05,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4346 states. [2021-12-28 00:54:05,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4346 to 4256. [2021-12-28 00:54:05,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4256 states, 3480 states have (on average 1.6666666666666667) internal successors, (5800), 3488 states have internal predecessors, (5800), 750 states have call successors, (750), 21 states have call predecessors, (750), 25 states have return successors, (823), 748 states have call predecessors, (823), 749 states have call successors, (823) [2021-12-28 00:54:05,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4256 states to 4256 states and 7373 transitions. [2021-12-28 00:54:05,327 INFO L78 Accepts]: Start accepts. Automaton has 4256 states and 7373 transitions. Word has length 121 [2021-12-28 00:54:05,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:05,327 INFO L470 AbstractCegarLoop]: Abstraction has 4256 states and 7373 transitions. [2021-12-28 00:54:05,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:05,328 INFO L276 IsEmpty]: Start isEmpty. Operand 4256 states and 7373 transitions. [2021-12-28 00:54:05,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-28 00:54:05,338 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:05,338 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] [2021-12-28 00:54:05,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-28 00:54:05,339 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:05,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:05,339 INFO L85 PathProgramCache]: Analyzing trace with hash -523521271, now seen corresponding path program 1 times [2021-12-28 00:54:05,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:05,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4471530] [2021-12-28 00:54:05,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:05,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:05,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:05,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:05,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:05,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:05,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:05,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:05,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:05,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:05,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:05,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:05,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:05,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 00:54:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:05,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 00:54:05,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:05,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-28 00:54:05,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:05,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 00:54:05,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:05,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-28 00:54:05,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:05,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 00:54:05,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:05,407 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:05,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:05,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4471530] [2021-12-28 00:54:05,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4471530] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:05,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:05,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:54:05,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653819581] [2021-12-28 00:54:05,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:05,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:54:05,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:05,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:54:05,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:54:05,409 INFO L87 Difference]: Start difference. First operand 4256 states and 7373 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:06,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:06,427 INFO L93 Difference]: Finished difference Result 10653 states and 18792 transitions. [2021-12-28 00:54:06,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:54:06,427 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2021-12-28 00:54:06,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:06,472 INFO L225 Difference]: With dead ends: 10653 [2021-12-28 00:54:06,473 INFO L226 Difference]: Without dead ends: 7079 [2021-12-28 00:54:06,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:06,484 INFO L933 BasicCegarLoop]: 592 mSDtfsCounter, 1193 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 466 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1211 SdHoareTripleChecker+Valid, 1350 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 466 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:06,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1211 Valid, 1350 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [466 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-28 00:54:06,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7079 states. [2021-12-28 00:54:06,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7079 to 6989. [2021-12-28 00:54:06,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6989 states, 5720 states have (on average 1.6617132867132867) internal successors, (9505), 5728 states have internal predecessors, (9505), 1243 states have call successors, (1243), 21 states have call predecessors, (1243), 25 states have return successors, (1360), 1241 states have call predecessors, (1360), 1242 states have call successors, (1360) [2021-12-28 00:54:06,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6989 states to 6989 states and 12108 transitions. [2021-12-28 00:54:06,809 INFO L78 Accepts]: Start accepts. Automaton has 6989 states and 12108 transitions. Word has length 122 [2021-12-28 00:54:06,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:06,810 INFO L470 AbstractCegarLoop]: Abstraction has 6989 states and 12108 transitions. [2021-12-28 00:54:06,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:06,811 INFO L276 IsEmpty]: Start isEmpty. Operand 6989 states and 12108 transitions. [2021-12-28 00:54:06,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-28 00:54:06,831 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:06,831 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] [2021-12-28 00:54:06,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-28 00:54:06,832 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:06,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:06,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1115485310, now seen corresponding path program 1 times [2021-12-28 00:54:06,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:06,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245262080] [2021-12-28 00:54:06,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:06,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:06,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:06,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:06,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:06,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:06,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 00:54:06,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 00:54:06,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-28 00:54:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 00:54:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-28 00:54:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-28 00:54:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:06,905 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:06,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:06,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245262080] [2021-12-28 00:54:06,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245262080] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:06,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:06,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:54:06,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041300167] [2021-12-28 00:54:06,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:06,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:54:06,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:06,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:54:06,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:54:06,908 INFO L87 Difference]: Start difference. First operand 6989 states and 12108 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:08,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:08,063 INFO L93 Difference]: Finished difference Result 17793 states and 31364 transitions. [2021-12-28 00:54:08,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:54:08,064 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 123 [2021-12-28 00:54:08,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:08,115 INFO L225 Difference]: With dead ends: 17793 [2021-12-28 00:54:08,115 INFO L226 Difference]: Without dead ends: 11863 [2021-12-28 00:54:08,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:08,127 INFO L933 BasicCegarLoop]: 586 mSDtfsCounter, 1189 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1207 SdHoareTripleChecker+Valid, 1317 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 474 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:08,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1207 Valid, 1317 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [474 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-28 00:54:08,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11863 states. [2021-12-28 00:54:08,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11863 to 11773. [2021-12-28 00:54:08,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11773 states, 9682 states have (on average 1.6611237347655443) internal successors, (16083), 9690 states have internal predecessors, (16083), 2065 states have call successors, (2065), 21 states have call predecessors, (2065), 25 states have return successors, (2260), 2063 states have call predecessors, (2260), 2064 states have call successors, (2260) [2021-12-28 00:54:08,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11773 states to 11773 states and 20408 transitions. [2021-12-28 00:54:08,587 INFO L78 Accepts]: Start accepts. Automaton has 11773 states and 20408 transitions. Word has length 123 [2021-12-28 00:54:08,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:08,588 INFO L470 AbstractCegarLoop]: Abstraction has 11773 states and 20408 transitions. [2021-12-28 00:54:08,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:08,588 INFO L276 IsEmpty]: Start isEmpty. Operand 11773 states and 20408 transitions. [2021-12-28 00:54:08,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-28 00:54:08,606 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:08,606 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] [2021-12-28 00:54:08,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-28 00:54:08,607 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:08,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:08,607 INFO L85 PathProgramCache]: Analyzing trace with hash -493220089, now seen corresponding path program 1 times [2021-12-28 00:54:08,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:08,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716277677] [2021-12-28 00:54:08,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:08,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:08,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:08,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:08,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:08,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:08,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 00:54:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 00:54:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 00:54:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-28 00:54:08,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-28 00:54:08,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 00:54:08,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:08,677 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:08,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:08,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716277677] [2021-12-28 00:54:08,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716277677] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:08,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:08,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:54:08,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075070925] [2021-12-28 00:54:08,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:08,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:54:08,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:08,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:54:08,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:54:08,679 INFO L87 Difference]: Start difference. First operand 11773 states and 20408 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:09,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:09,987 INFO L93 Difference]: Finished difference Result 28226 states and 49489 transitions. [2021-12-28 00:54:09,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:54:09,988 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 124 [2021-12-28 00:54:09,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:10,055 INFO L225 Difference]: With dead ends: 28226 [2021-12-28 00:54:10,055 INFO L226 Difference]: Without dead ends: 18456 [2021-12-28 00:54:10,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:10,090 INFO L933 BasicCegarLoop]: 583 mSDtfsCounter, 1190 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 459 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1209 SdHoareTripleChecker+Valid, 1309 SdHoareTripleChecker+Invalid, 1343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 459 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:10,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1209 Valid, 1309 Invalid, 1343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [459 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-28 00:54:10,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18456 states. [2021-12-28 00:54:10,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18456 to 18366. [2021-12-28 00:54:10,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18366 states, 15072 states have (on average 1.6354166666666667) internal successors, (24649), 15080 states have internal predecessors, (24649), 3268 states have call successors, (3268), 21 states have call predecessors, (3268), 25 states have return successors, (3607), 3266 states have call predecessors, (3607), 3267 states have call successors, (3607) [2021-12-28 00:54:10,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18366 states to 18366 states and 31524 transitions. [2021-12-28 00:54:10,894 INFO L78 Accepts]: Start accepts. Automaton has 18366 states and 31524 transitions. Word has length 124 [2021-12-28 00:54:10,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:10,894 INFO L470 AbstractCegarLoop]: Abstraction has 18366 states and 31524 transitions. [2021-12-28 00:54:10,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:10,895 INFO L276 IsEmpty]: Start isEmpty. Operand 18366 states and 31524 transitions. [2021-12-28 00:54:10,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-28 00:54:10,915 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:10,916 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] [2021-12-28 00:54:10,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-28 00:54:10,916 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:10,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:10,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1450923677, now seen corresponding path program 1 times [2021-12-28 00:54:10,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:10,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107448703] [2021-12-28 00:54:10,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:10,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:10,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:10,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:10,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:10,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 00:54:10,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-28 00:54:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-28 00:54:10,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-28 00:54:10,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-28 00:54:10,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-28 00:54:10,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:10,995 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:10,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:10,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107448703] [2021-12-28 00:54:10,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107448703] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:10,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:10,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:54:10,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104139673] [2021-12-28 00:54:10,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:10,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:54:10,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:10,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:54:10,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:54:10,998 INFO L87 Difference]: Start difference. First operand 18366 states and 31524 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:12,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:12,888 INFO L93 Difference]: Finished difference Result 48648 states and 84993 transitions. [2021-12-28 00:54:12,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:54:12,888 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 125 [2021-12-28 00:54:12,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:12,987 INFO L225 Difference]: With dead ends: 48648 [2021-12-28 00:54:12,987 INFO L226 Difference]: Without dead ends: 32892 [2021-12-28 00:54:13,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:13,023 INFO L933 BasicCegarLoop]: 579 mSDtfsCounter, 1187 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 472 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1205 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 472 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:13,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1205 Valid, 1310 Invalid, 1376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [472 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-28 00:54:13,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32892 states. [2021-12-28 00:54:14,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32892 to 32802. [2021-12-28 00:54:14,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32802 states, 27058 states have (on average 1.6319018404907975) internal successors, (44156), 27066 states have internal predecessors, (44156), 5718 states have call successors, (5718), 21 states have call predecessors, (5718), 25 states have return successors, (6331), 5716 states have call predecessors, (6331), 5717 states have call successors, (6331) [2021-12-28 00:54:14,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32802 states to 32802 states and 56205 transitions. [2021-12-28 00:54:14,449 INFO L78 Accepts]: Start accepts. Automaton has 32802 states and 56205 transitions. Word has length 125 [2021-12-28 00:54:14,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:14,449 INFO L470 AbstractCegarLoop]: Abstraction has 32802 states and 56205 transitions. [2021-12-28 00:54:14,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:14,450 INFO L276 IsEmpty]: Start isEmpty. Operand 32802 states and 56205 transitions. [2021-12-28 00:54:14,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-12-28 00:54:14,469 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:14,469 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] [2021-12-28 00:54:14,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-28 00:54:14,469 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:14,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:14,470 INFO L85 PathProgramCache]: Analyzing trace with hash 22185197, now seen corresponding path program 1 times [2021-12-28 00:54:14,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:14,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610407319] [2021-12-28 00:54:14,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:14,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:14,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:14,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:14,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:14,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:14,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:14,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:14,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:14,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:14,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:14,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:14,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:14,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:14,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-28 00:54:14,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:14,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 00:54:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:14,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-28 00:54:14,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:14,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 00:54:14,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:14,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-28 00:54:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:14,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-28 00:54:14,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:14,569 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:14,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:14,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610407319] [2021-12-28 00:54:14,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610407319] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:14,570 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:14,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:54:14,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98801715] [2021-12-28 00:54:14,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:14,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:54:14,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:14,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:54:14,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:54:14,572 INFO L87 Difference]: Start difference. First operand 32802 states and 56205 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:17,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:17,274 INFO L93 Difference]: Finished difference Result 89545 states and 155627 transitions. [2021-12-28 00:54:17,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:54:17,274 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 126 [2021-12-28 00:54:17,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:17,482 INFO L225 Difference]: With dead ends: 89545 [2021-12-28 00:54:17,483 INFO L226 Difference]: Without dead ends: 60229 [2021-12-28 00:54:17,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:17,560 INFO L933 BasicCegarLoop]: 585 mSDtfsCounter, 1185 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 480 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 1324 SdHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 480 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:17,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1203 Valid, 1324 Invalid, 1377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [480 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-28 00:54:17,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60229 states. [2021-12-28 00:54:19,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60229 to 60139. [2021-12-28 00:54:19,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60139 states, 49882 states have (on average 1.6274207128824025) internal successors, (81179), 49890 states have internal predecessors, (81179), 10231 states have call successors, (10231), 21 states have call predecessors, (10231), 25 states have return successors, (11376), 10229 states have call predecessors, (11376), 10230 states have call successors, (11376) [2021-12-28 00:54:20,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60139 states to 60139 states and 102786 transitions. [2021-12-28 00:54:20,118 INFO L78 Accepts]: Start accepts. Automaton has 60139 states and 102786 transitions. Word has length 126 [2021-12-28 00:54:20,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:20,119 INFO L470 AbstractCegarLoop]: Abstraction has 60139 states and 102786 transitions. [2021-12-28 00:54:20,119 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:20,120 INFO L276 IsEmpty]: Start isEmpty. Operand 60139 states and 102786 transitions. [2021-12-28 00:54:20,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-28 00:54:20,142 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:20,142 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] [2021-12-28 00:54:20,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-28 00:54:20,142 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:20,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:20,143 INFO L85 PathProgramCache]: Analyzing trace with hash 906841661, now seen corresponding path program 1 times [2021-12-28 00:54:20,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:20,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812917414] [2021-12-28 00:54:20,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:20,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:20,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:20,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:20,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:20,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:20,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:20,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:20,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:20,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:20,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:20,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:20,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:20,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:20,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 00:54:20,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:20,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-28 00:54:20,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:20,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 00:54:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:20,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 00:54:20,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:20,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-28 00:54:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:20,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-28 00:54:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:20,207 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:20,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:20,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812917414] [2021-12-28 00:54:20,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812917414] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:20,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:20,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:54:20,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877391577] [2021-12-28 00:54:20,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:20,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:54:20,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:20,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:54:20,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:54:20,209 INFO L87 Difference]: Start difference. First operand 60139 states and 102786 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:24,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:24,045 INFO L93 Difference]: Finished difference Result 112636 states and 196205 transitions. [2021-12-28 00:54:24,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:54:24,045 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 127 [2021-12-28 00:54:24,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:24,554 INFO L225 Difference]: With dead ends: 112636 [2021-12-28 00:54:24,555 INFO L226 Difference]: Without dead ends: 112487 [2021-12-28 00:54:24,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:54:24,592 INFO L933 BasicCegarLoop]: 580 mSDtfsCounter, 1185 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 460 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1204 SdHoareTripleChecker+Valid, 1311 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 460 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:24,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1204 Valid, 1311 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [460 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-28 00:54:24,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112487 states. [2021-12-28 00:54:28,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112487 to 112397. [2021-12-28 00:54:28,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112397 states, 93772 states have (on average 1.621870067824084) internal successors, (152086), 93780 states have internal predecessors, (152086), 18599 states have call successors, (18599), 21 states have call predecessors, (18599), 25 states have return successors, (20790), 18597 states have call predecessors, (20790), 18598 states have call successors, (20790) [2021-12-28 00:54:29,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112397 states to 112397 states and 191475 transitions. [2021-12-28 00:54:29,281 INFO L78 Accepts]: Start accepts. Automaton has 112397 states and 191475 transitions. Word has length 127 [2021-12-28 00:54:29,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:54:29,281 INFO L470 AbstractCegarLoop]: Abstraction has 112397 states and 191475 transitions. [2021-12-28 00:54:29,281 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 00:54:29,282 INFO L276 IsEmpty]: Start isEmpty. Operand 112397 states and 191475 transitions. [2021-12-28 00:54:29,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-28 00:54:29,308 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:54:29,308 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] [2021-12-28 00:54:29,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-28 00:54:29,308 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:54:29,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:54:29,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1031317938, now seen corresponding path program 1 times [2021-12-28 00:54:29,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:54:29,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749718916] [2021-12-28 00:54:29,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:54:29,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:54:29,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:29,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:54:29,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:29,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:54:29,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:29,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:54:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:29,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:54:29,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:29,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:54:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:29,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:54:29,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:29,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 00:54:29,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:29,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 00:54:29,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:29,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 00:54:29,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:29,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-28 00:54:29,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:29,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 00:54:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:29,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 00:54:29,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:54:29,437 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:54:29,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:54:29,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749718916] [2021-12-28 00:54:29,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749718916] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:54:29,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:54:29,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-12-28 00:54:29,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126950589] [2021-12-28 00:54:29,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:54:29,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-28 00:54:29,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:54:29,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-28 00:54:29,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2021-12-28 00:54:29,439 INFO L87 Difference]: Start difference. First operand 112397 states and 191475 transitions. Second operand has 16 states, 15 states have (on average 5.866666666666666) internal successors, (88), 10 states have internal predecessors, (88), 5 states have call successors, (15), 7 states have call predecessors, (15), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2021-12-28 00:54:40,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:54:40,493 INFO L93 Difference]: Finished difference Result 224392 states and 394239 transitions. [2021-12-28 00:54:40,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-12-28 00:54:40,493 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.866666666666666) internal successors, (88), 10 states have internal predecessors, (88), 5 states have call successors, (15), 7 states have call predecessors, (15), 3 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 128 [2021-12-28 00:54:40,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:54:41,474 INFO L225 Difference]: With dead ends: 224392 [2021-12-28 00:54:41,474 INFO L226 Difference]: Without dead ends: 224249 [2021-12-28 00:54:41,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1009 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=725, Invalid=2935, Unknown=0, NotChecked=0, Total=3660 [2021-12-28 00:54:41,567 INFO L933 BasicCegarLoop]: 682 mSDtfsCounter, 4929 mSDsluCounter, 2700 mSDsCounter, 0 mSdLazyCounter, 8075 mSolverCounterSat, 2299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4929 SdHoareTripleChecker+Valid, 3382 SdHoareTripleChecker+Invalid, 10374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2299 IncrementalHoareTripleChecker+Valid, 8075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-28 00:54:41,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4929 Valid, 3382 Invalid, 10374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2299 Valid, 8075 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-12-28 00:54:41,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224249 states.