./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec9_product21.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec9_product21.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 f4fee54ccb193d38705f292ec1df682c5f160e2b5ba09e341cb9a12b4e6b2606 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 15:04:56,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 15:04:56,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 15:04:56,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 15:04:56,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 15:04:56,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 15:04:56,455 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 15:04:56,457 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 15:04:56,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 15:04:56,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 15:04:56,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 15:04:56,463 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 15:04:56,464 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 15:04:56,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 15:04:56,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 15:04:56,469 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 15:04:56,470 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 15:04:56,471 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 15:04:56,473 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 15:04:56,477 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 15:04:56,478 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 15:04:56,479 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 15:04:56,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 15:04:56,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 15:04:56,485 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 15:04:56,485 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 15:04:56,485 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 15:04:56,487 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 15:04:56,487 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 15:04:56,487 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 15:04:56,488 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 15:04:56,488 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 15:04:56,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 15:04:56,491 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 15:04:56,492 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 15:04:56,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 15:04:56,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 15:04:56,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 15:04:56,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 15:04:56,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 15:04:56,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 15:04:56,494 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 15:04:56,520 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 15:04:56,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 15:04:56,521 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 15:04:56,521 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 15:04:56,521 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 15:04:56,522 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 15:04:56,522 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 15:04:56,522 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 15:04:56,522 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 15:04:56,523 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 15:04:56,523 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 15:04:56,523 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 15:04:56,524 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 15:04:56,524 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 15:04:56,524 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 15:04:56,524 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 15:04:56,524 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 15:04:56,524 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 15:04:56,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 15:04:56,524 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 15:04:56,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 15:04:56,525 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 15:04:56,525 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 15:04:56,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 15:04:56,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:04:56,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 15:04:56,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 15:04:56,526 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 15:04:56,526 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 15:04:56,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 15:04:56,527 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 15:04:56,527 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 15:04:56,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 15:04:56,527 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 15:04:56,527 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4fee54ccb193d38705f292ec1df682c5f160e2b5ba09e341cb9a12b4e6b2606 [2021-12-17 15:04:56,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 15:04:56,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 15:04:56,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 15:04:56,774 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 15:04:56,774 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 15:04:56,775 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec9_product21.cil.c [2021-12-17 15:04:56,835 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/299f6f504/d777d296f0c74214a18048faca0dcbbf/FLAG722846a85 [2021-12-17 15:04:57,409 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 15:04:57,413 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec9_product21.cil.c [2021-12-17 15:04:57,443 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/299f6f504/d777d296f0c74214a18048faca0dcbbf/FLAG722846a85 [2021-12-17 15:04:57,892 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/299f6f504/d777d296f0c74214a18048faca0dcbbf [2021-12-17 15:04:57,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 15:04:57,897 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 15:04:57,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 15:04:57,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 15:04:57,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 15:04:57,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:04:57" (1/1) ... [2021-12-17 15:04:57,910 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f37e79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:04:57, skipping insertion in model container [2021-12-17 15:04:57,910 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:04:57" (1/1) ... [2021-12-17 15:04:57,915 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 15:04:58,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 15:04:58,274 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_product21.cil.c[10263,10276] [2021-12-17 15:04:58,545 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:04:58,552 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 15:04:58,570 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_product21.cil.c[10263,10276] [2021-12-17 15:04:58,639 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:04:58,671 INFO L208 MainTranslator]: Completed translation [2021-12-17 15:04:58,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:04:58 WrapperNode [2021-12-17 15:04:58,672 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 15:04:58,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 15:04:58,673 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 15:04:58,673 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 15:04:58,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:04:58" (1/1) ... [2021-12-17 15:04:58,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:04:58" (1/1) ... [2021-12-17 15:04:58,831 INFO L137 Inliner]: procedures = 129, calls = 220, calls flagged for inlining = 58, calls inlined = 55, statements flattened = 1072 [2021-12-17 15:04:58,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 15:04:58,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 15:04:58,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 15:04:58,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 15:04:58,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:04:58" (1/1) ... [2021-12-17 15:04:58,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:04:58" (1/1) ... [2021-12-17 15:04:58,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:04:58" (1/1) ... [2021-12-17 15:04:58,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:04:58" (1/1) ... [2021-12-17 15:04:58,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:04:58" (1/1) ... [2021-12-17 15:04:58,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:04:58" (1/1) ... [2021-12-17 15:04:58,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:04:58" (1/1) ... [2021-12-17 15:04:58,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 15:04:58,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 15:04:58,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 15:04:58,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 15:04:58,973 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:04:58" (1/1) ... [2021-12-17 15:04:58,978 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:04:58,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:04:59,023 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-17 15:04:59,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-17 15:04:59,064 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-17 15:04:59,064 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-17 15:04:59,064 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-12-17 15:04:59,065 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-12-17 15:04:59,065 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-17 15:04:59,065 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-17 15:04:59,065 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-12-17 15:04:59,065 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-12-17 15:04:59,065 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-17 15:04:59,065 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-17 15:04:59,065 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-17 15:04:59,066 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-17 15:04:59,066 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-17 15:04:59,066 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-17 15:04:59,066 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-12-17 15:04:59,066 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-12-17 15:04:59,066 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-17 15:04:59,066 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-17 15:04:59,066 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-17 15:04:59,067 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-17 15:04:59,067 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-17 15:04:59,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 15:04:59,067 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-17 15:04:59,067 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-17 15:04:59,067 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-17 15:04:59,067 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-17 15:04:59,067 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-17 15:04:59,068 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-17 15:04:59,068 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-17 15:04:59,068 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-17 15:04:59,068 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2021-12-17 15:04:59,068 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2021-12-17 15:04:59,068 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-17 15:04:59,068 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-17 15:04:59,068 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-12-17 15:04:59,069 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-12-17 15:04:59,069 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-17 15:04:59,069 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-17 15:04:59,069 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-17 15:04:59,069 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-17 15:04:59,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 15:04:59,069 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-17 15:04:59,069 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-17 15:04:59,069 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-17 15:04:59,070 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-17 15:04:59,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 15:04:59,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 15:04:59,234 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 15:04:59,235 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 15:04:59,799 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 15:04:59,808 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 15:04:59,809 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-17 15:04:59,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:04:59 BoogieIcfgContainer [2021-12-17 15:04:59,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 15:04:59,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 15:04:59,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 15:04:59,817 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 15:04:59,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 03:04:57" (1/3) ... [2021-12-17 15:04:59,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d12315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:04:59, skipping insertion in model container [2021-12-17 15:04:59,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:04:58" (2/3) ... [2021-12-17 15:04:59,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d12315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:04:59, skipping insertion in model container [2021-12-17 15:04:59,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:04:59" (3/3) ... [2021-12-17 15:04:59,820 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec9_product21.cil.c [2021-12-17 15:04:59,824 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 15:04:59,824 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 15:04:59,890 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 15:04:59,896 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 15:04:59,897 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 15:04:59,933 INFO L276 IsEmpty]: Start isEmpty. Operand has 377 states, 297 states have (on average 1.569023569023569) internal successors, (466), 302 states have internal predecessors, (466), 57 states have call successors, (57), 21 states have call predecessors, (57), 21 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2021-12-17 15:04:59,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-17 15:04:59,953 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:04:59,954 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] [2021-12-17 15:04:59,954 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:04:59,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:04:59,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1929475280, now seen corresponding path program 1 times [2021-12-17 15:04:59,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:04:59,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603850538] [2021-12-17 15:04:59,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:04:59,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:05:00,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:00,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:05:00,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:00,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:05:00,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:00,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:05:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:00,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:05:00,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:00,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 15:05:00,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:00,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 15:05:00,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:00,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-17 15:05:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:00,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-17 15:05:00,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:00,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-17 15:05:00,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:00,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-17 15:05:00,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:00,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-17 15:05:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:00,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-17 15:05:00,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:00,373 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-17 15:05:00,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:05:00,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603850538] [2021-12-17 15:05:00,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603850538] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:05:00,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36709014] [2021-12-17 15:05:00,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:05:00,375 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:05:00,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:05:00,377 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 15:05:00,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 15:05:00,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:00,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-17 15:05:00,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:05:00,801 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-17 15:05:00,801 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:05:00,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36709014] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:05:00,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:05:00,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-12-17 15:05:00,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674052439] [2021-12-17 15:05:00,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:05:00,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 15:05:00,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:05:00,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 15:05:00,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:05:00,828 INFO L87 Difference]: Start difference. First operand has 377 states, 297 states have (on average 1.569023569023569) internal successors, (466), 302 states have internal predecessors, (466), 57 states have call successors, (57), 21 states have call predecessors, (57), 21 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) 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) [2021-12-17 15:05:00,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:05:00,873 INFO L93 Difference]: Finished difference Result 561 states and 850 transitions. [2021-12-17 15:05:00,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 15:05:00,875 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 [2021-12-17 15:05:00,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:05:00,886 INFO L225 Difference]: With dead ends: 561 [2021-12-17 15:05:00,886 INFO L226 Difference]: Without dead ends: 370 [2021-12-17 15:05:00,890 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 [2021-12-17 15:05:00,893 INFO L933 BasicCegarLoop]: 576 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, 576 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:05:00,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:05:00,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2021-12-17 15:05:00,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2021-12-17 15:05:00,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 291 states have (on average 1.563573883161512) internal successors, (455), 295 states have internal predecessors, (455), 57 states have call successors, (57), 21 states have call predecessors, (57), 21 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2021-12-17 15:05:00,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 568 transitions. [2021-12-17 15:05:00,943 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 568 transitions. Word has length 98 [2021-12-17 15:05:00,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:05:00,945 INFO L470 AbstractCegarLoop]: Abstraction has 370 states and 568 transitions. [2021-12-17 15:05:00,945 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) [2021-12-17 15:05:00,945 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 568 transitions. [2021-12-17 15:05:00,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-17 15:05:00,951 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:05:00,953 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] [2021-12-17 15:05:00,971 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-17 15:05:01,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-12-17 15:05:01,161 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:05:01,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:05:01,161 INFO L85 PathProgramCache]: Analyzing trace with hash -440096051, now seen corresponding path program 1 times [2021-12-17 15:05:01,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:05:01,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802865807] [2021-12-17 15:05:01,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:05:01,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:05:01,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:01,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:05:01,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:01,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:05:01,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:01,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:05:01,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:01,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:05:01,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:01,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 15:05:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:01,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 15:05:01,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:01,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-17 15:05:01,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:01,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-17 15:05:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:01,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-17 15:05:01,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:01,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-17 15:05:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:01,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-17 15:05:01,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:01,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-17 15:05:01,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:01,329 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-17 15:05:01,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:05:01,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802865807] [2021-12-17 15:05:01,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802865807] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:05:01,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008980615] [2021-12-17 15:05:01,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:05:01,330 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:05:01,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:05:01,348 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 15:05:01,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-17 15:05:01,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:01,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 1046 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 15:05:01,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:05:01,798 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-17 15:05:01,799 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:05:01,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008980615] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:05:01,799 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:05:01,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-17 15:05:01,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507154513] [2021-12-17 15:05:01,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:05:01,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:05:01,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:05:01,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:05:01,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 15:05:01,815 INFO L87 Difference]: Start difference. First operand 370 states and 568 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) [2021-12-17 15:05:01,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:05:01,863 INFO L93 Difference]: Finished difference Result 551 states and 828 transitions. [2021-12-17 15:05:01,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:05:01,864 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 [2021-12-17 15:05:01,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:05:01,869 INFO L225 Difference]: With dead ends: 551 [2021-12-17 15:05:01,873 INFO L226 Difference]: Without dead ends: 373 [2021-12-17 15:05:01,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 15:05:01,877 INFO L933 BasicCegarLoop]: 566 mSDtfsCounter, 1 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:05:01,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1130 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:05:01,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2021-12-17 15:05:01,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 372. [2021-12-17 15:05:01,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 293 states have (on average 1.5597269624573378) internal successors, (457), 297 states have internal predecessors, (457), 57 states have call successors, (57), 21 states have call predecessors, (57), 21 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2021-12-17 15:05:01,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 570 transitions. [2021-12-17 15:05:01,910 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 570 transitions. Word has length 99 [2021-12-17 15:05:01,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:05:01,913 INFO L470 AbstractCegarLoop]: Abstraction has 372 states and 570 transitions. [2021-12-17 15:05:01,913 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) [2021-12-17 15:05:01,913 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 570 transitions. [2021-12-17 15:05:01,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-17 15:05:01,919 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:05:01,920 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] [2021-12-17 15:05:01,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-17 15:05:02,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-12-17 15:05:02,141 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:05:02,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:05:02,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1969662684, now seen corresponding path program 1 times [2021-12-17 15:05:02,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:05:02,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409185491] [2021-12-17 15:05:02,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:05:02,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:05:02,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:02,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:05:02,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:02,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:05:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:02,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:05:02,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:02,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:05:02,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:02,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 15:05:02,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:02,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 15:05:02,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:02,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-17 15:05:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:02,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-17 15:05:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:02,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-17 15:05:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:02,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-17 15:05:02,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:02,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-17 15:05:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:02,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-17 15:05:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:02,343 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 15:05:02,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:05:02,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409185491] [2021-12-17 15:05:02,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409185491] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:05:02,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190563860] [2021-12-17 15:05:02,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:05:02,345 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:05:02,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:05:02,346 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 15:05:02,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-17 15:05:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:02,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 1060 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 15:05:02,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:05:02,693 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-17 15:05:02,693 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:05:02,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190563860] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:05:02,694 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:05:02,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-17 15:05:02,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400115586] [2021-12-17 15:05:02,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:05:02,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:05:02,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:05:02,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:05:02,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 15:05:02,695 INFO L87 Difference]: Start difference. First operand 372 states and 570 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) [2021-12-17 15:05:02,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:05:02,715 INFO L93 Difference]: Finished difference Result 792 states and 1232 transitions. [2021-12-17 15:05:02,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:05:02,715 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 [2021-12-17 15:05:02,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:05:02,718 INFO L225 Difference]: With dead ends: 792 [2021-12-17 15:05:02,718 INFO L226 Difference]: Without dead ends: 447 [2021-12-17 15:05:02,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 15:05:02,720 INFO L933 BasicCegarLoop]: 594 mSDtfsCounter, 134 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:05:02,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 1117 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:05:02,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2021-12-17 15:05:02,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 439. [2021-12-17 15:05:02,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 346 states have (on average 1.5780346820809248) internal successors, (546), 350 states have internal predecessors, (546), 71 states have call successors, (71), 21 states have call predecessors, (71), 21 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2021-12-17 15:05:02,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 687 transitions. [2021-12-17 15:05:02,740 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 687 transitions. Word has length 105 [2021-12-17 15:05:02,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:05:02,740 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 687 transitions. [2021-12-17 15:05:02,740 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) [2021-12-17 15:05:02,740 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 687 transitions. [2021-12-17 15:05:02,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-17 15:05:02,742 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:05:02,742 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] [2021-12-17 15:05:02,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-17 15:05:02,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:05:02,959 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:05:02,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:05:02,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1733979839, now seen corresponding path program 1 times [2021-12-17 15:05:02,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:05:02,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803982835] [2021-12-17 15:05:02,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:05:02,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:05:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:03,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:05:03,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:03,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:05:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:03,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:05:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:03,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:05:03,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:03,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-17 15:05:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:03,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 15:05:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:03,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-17 15:05:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:03,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-17 15:05:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:03,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-17 15:05:03,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:03,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-17 15:05:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:03,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-17 15:05:03,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:03,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-17 15:05:03,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:03,163 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 15:05:03,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:05:03,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803982835] [2021-12-17 15:05:03,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803982835] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:05:03,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318750368] [2021-12-17 15:05:03,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:05:03,166 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:05:03,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:05:03,167 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 15:05:03,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-17 15:05:03,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:03,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 1067 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-17 15:05:03,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:05:03,643 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-17 15:05:03,643 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:05:03,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318750368] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:05:03,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:05:03,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-17 15:05:03,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179551592] [2021-12-17 15:05:03,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:05:03,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 15:05:03,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:05:03,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 15:05:03,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-17 15:05:03,645 INFO L87 Difference]: Start difference. First operand 439 states and 687 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) [2021-12-17 15:05:03,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:05:03,734 INFO L93 Difference]: Finished difference Result 869 states and 1364 transitions. [2021-12-17 15:05:03,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 15:05:03,737 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 [2021-12-17 15:05:03,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:05:03,741 INFO L225 Difference]: With dead ends: 869 [2021-12-17 15:05:03,741 INFO L226 Difference]: Without dead ends: 441 [2021-12-17 15:05:03,743 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 [2021-12-17 15:05:03,745 INFO L933 BasicCegarLoop]: 559 mSDtfsCounter, 152 mSDsluCounter, 1503 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2062 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:05:03,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 2062 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:05:03,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2021-12-17 15:05:03,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2021-12-17 15:05:03,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 347 states have (on average 1.5763688760806915) internal successors, (547), 352 states have internal predecessors, (547), 71 states have call successors, (71), 21 states have call predecessors, (71), 22 states have return successors, (72), 69 states have call predecessors, (72), 70 states have call successors, (72) [2021-12-17 15:05:03,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 690 transitions. [2021-12-17 15:05:03,781 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 690 transitions. Word has length 106 [2021-12-17 15:05:03,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:05:03,782 INFO L470 AbstractCegarLoop]: Abstraction has 441 states and 690 transitions. [2021-12-17 15:05:03,782 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) [2021-12-17 15:05:03,782 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 690 transitions. [2021-12-17 15:05:03,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-17 15:05:03,785 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:05:03,785 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] [2021-12-17 15:05:03,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-17 15:05:04,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:05:04,004 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:05:04,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:05:04,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1463820644, now seen corresponding path program 1 times [2021-12-17 15:05:04,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:05:04,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002649492] [2021-12-17 15:05:04,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:05:04,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:05:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:04,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:05:04,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:04,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:05:04,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:04,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:05:04,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:04,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:05:04,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:04,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-17 15:05:04,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:04,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-17 15:05:04,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:04,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-17 15:05:04,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:04,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-17 15:05:04,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:04,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-17 15:05:04,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:04,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-17 15:05:04,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:04,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-17 15:05:04,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:04,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-17 15:05:04,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:04,304 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-17 15:05:04,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:05:04,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002649492] [2021-12-17 15:05:04,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002649492] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:05:04,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101837486] [2021-12-17 15:05:04,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:05:04,306 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:05:04,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:05:04,329 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 15:05:04,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-17 15:05:04,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:04,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 1068 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-17 15:05:04,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:05:04,793 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-17 15:05:04,793 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:05:04,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101837486] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:05:04,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:05:04,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-17 15:05:04,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552731848] [2021-12-17 15:05:04,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:05:04,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 15:05:04,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:05:04,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 15:05:04,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-12-17 15:05:04,796 INFO L87 Difference]: Start difference. First operand 441 states and 690 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) [2021-12-17 15:05:04,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:05:04,875 INFO L93 Difference]: Finished difference Result 871 states and 1369 transitions. [2021-12-17 15:05:04,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 15:05:04,876 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 [2021-12-17 15:05:04,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:05:04,880 INFO L225 Difference]: With dead ends: 871 [2021-12-17 15:05:04,881 INFO L226 Difference]: Without dead ends: 443 [2021-12-17 15:05:04,882 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 [2021-12-17 15:05:04,883 INFO L933 BasicCegarLoop]: 557 mSDtfsCounter, 151 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2051 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:05:04,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 2051 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:05:04,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2021-12-17 15:05:04,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2021-12-17 15:05:04,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 348 states have (on average 1.5747126436781609) internal successors, (548), 354 states have internal predecessors, (548), 71 states have call successors, (71), 21 states have call predecessors, (71), 23 states have return successors, (77), 69 states have call predecessors, (77), 70 states have call successors, (77) [2021-12-17 15:05:04,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 696 transitions. [2021-12-17 15:05:04,924 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 696 transitions. Word has length 107 [2021-12-17 15:05:04,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:05:04,925 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 696 transitions. [2021-12-17 15:05:04,926 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) [2021-12-17 15:05:04,926 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 696 transitions. [2021-12-17 15:05:04,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-17 15:05:04,928 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:05:04,929 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] [2021-12-17 15:05:04,971 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-17 15:05:05,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:05:05,147 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:05:05,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:05:05,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1036991374, now seen corresponding path program 1 times [2021-12-17 15:05:05,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:05:05,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161405600] [2021-12-17 15:05:05,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:05:05,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:05:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:05,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:05:05,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:05,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:05:05,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:05,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:05:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:05,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:05:05,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:05,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:05:05,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:05,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-17 15:05:05,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:05,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-17 15:05:05,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:05,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-17 15:05:05,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:05,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-17 15:05:05,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:05,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-17 15:05:05,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:05,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-17 15:05:05,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:05,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-17 15:05:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:05,297 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 15:05:05,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:05:05,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161405600] [2021-12-17 15:05:05,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161405600] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:05:05,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:05:05,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 15:05:05,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855719882] [2021-12-17 15:05:05,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:05:05,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 15:05:05,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:05:05,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 15:05:05,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:05:05,298 INFO L87 Difference]: Start difference. First operand 443 states and 696 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) [2021-12-17 15:05:07,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:05:07,347 INFO L93 Difference]: Finished difference Result 1030 states and 1635 transitions. [2021-12-17 15:05:07,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-17 15:05:07,348 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 [2021-12-17 15:05:07,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:05:07,366 INFO L225 Difference]: With dead ends: 1030 [2021-12-17 15:05:07,366 INFO L226 Difference]: Without dead ends: 610 [2021-12-17 15:05:07,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-17 15:05:07,369 INFO L933 BasicCegarLoop]: 681 mSDtfsCounter, 1366 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 2099 mSolverCounterSat, 502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1387 SdHoareTripleChecker+Valid, 1920 SdHoareTripleChecker+Invalid, 2601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 2099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-17 15:05:07,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1387 Valid, 1920 Invalid, 2601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 2099 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-17 15:05:07,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2021-12-17 15:05:07,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 443. [2021-12-17 15:05:07,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 348 states have (on average 1.5747126436781609) internal successors, (548), 354 states have internal predecessors, (548), 71 states have call successors, (71), 21 states have call predecessors, (71), 23 states have return successors, (76), 69 states have call predecessors, (76), 70 states have call successors, (76) [2021-12-17 15:05:07,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 695 transitions. [2021-12-17 15:05:07,441 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 695 transitions. Word has length 108 [2021-12-17 15:05:07,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:05:07,442 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 695 transitions. [2021-12-17 15:05:07,442 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) [2021-12-17 15:05:07,442 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 695 transitions. [2021-12-17 15:05:07,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-17 15:05:07,461 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:05:07,461 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] [2021-12-17 15:05:07,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 15:05:07,461 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:05:07,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:05:07,462 INFO L85 PathProgramCache]: Analyzing trace with hash -2043334067, now seen corresponding path program 2 times [2021-12-17 15:05:07,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:05:07,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349163463] [2021-12-17 15:05:07,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:05:07,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:05:07,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:07,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:05:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:07,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:05:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:07,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:05:07,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:07,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:05:07,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:07,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:05:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:07,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-17 15:05:07,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:07,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 15:05:07,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:07,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-17 15:05:07,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:07,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-17 15:05:07,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:07,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-17 15:05:07,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:07,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 15:05:07,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:07,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-17 15:05:07,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:07,568 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 15:05:07,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:05:07,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349163463] [2021-12-17 15:05:07,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349163463] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:05:07,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:05:07,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 15:05:07,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965541609] [2021-12-17 15:05:07,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:05:07,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 15:05:07,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:05:07,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 15:05:07,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:05:07,570 INFO L87 Difference]: Start difference. First operand 443 states and 695 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) [2021-12-17 15:05:09,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:05:09,579 INFO L93 Difference]: Finished difference Result 1032 states and 1638 transitions. [2021-12-17 15:05:09,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-17 15:05:09,579 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 [2021-12-17 15:05:09,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:05:09,584 INFO L225 Difference]: With dead ends: 1032 [2021-12-17 15:05:09,585 INFO L226 Difference]: Without dead ends: 612 [2021-12-17 15:05:09,588 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 [2021-12-17 15:05:09,588 INFO L933 BasicCegarLoop]: 687 mSDtfsCounter, 1357 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 2101 mSolverCounterSat, 504 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1378 SdHoareTripleChecker+Valid, 1936 SdHoareTripleChecker+Invalid, 2605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 504 IncrementalHoareTripleChecker+Valid, 2101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-17 15:05:09,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1378 Valid, 1936 Invalid, 2605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [504 Valid, 2101 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-17 15:05:09,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2021-12-17 15:05:09,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 445. [2021-12-17 15:05:09,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 349 states have (on average 1.5730659025787965) internal successors, (549), 356 states have internal predecessors, (549), 71 states have call successors, (71), 21 states have call predecessors, (71), 24 states have return successors, (78), 69 states have call predecessors, (78), 70 states have call successors, (78) [2021-12-17 15:05:09,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 698 transitions. [2021-12-17 15:05:09,616 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 698 transitions. Word has length 109 [2021-12-17 15:05:09,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:05:09,617 INFO L470 AbstractCegarLoop]: Abstraction has 445 states and 698 transitions. [2021-12-17 15:05:09,617 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) [2021-12-17 15:05:09,617 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 698 transitions. [2021-12-17 15:05:09,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-17 15:05:09,619 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:05:09,619 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] [2021-12-17 15:05:09,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 15:05:09,619 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:05:09,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:05:09,620 INFO L85 PathProgramCache]: Analyzing trace with hash 61137735, now seen corresponding path program 1 times [2021-12-17 15:05:09,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:05:09,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973776295] [2021-12-17 15:05:09,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:05:09,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:05:09,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:09,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:05:09,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:09,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:05:09,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:09,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:05:09,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:09,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:05:09,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:09,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:05:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:09,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:05:09,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:09,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-17 15:05:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:09,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-17 15:05:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:09,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-17 15:05:09,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:09,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-17 15:05:09,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:09,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-17 15:05:09,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:09,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-17 15:05:09,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:09,753 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 15:05:09,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:05:09,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973776295] [2021-12-17 15:05:09,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973776295] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:05:09,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:05:09,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 15:05:09,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566081113] [2021-12-17 15:05:09,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:05:09,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 15:05:09,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:05:09,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 15:05:09,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:05:09,755 INFO L87 Difference]: Start difference. First operand 445 states and 698 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) [2021-12-17 15:05:12,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:05:12,381 INFO L93 Difference]: Finished difference Result 1032 states and 1637 transitions. [2021-12-17 15:05:12,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 15:05:12,381 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 [2021-12-17 15:05:12,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:05:12,384 INFO L225 Difference]: With dead ends: 1032 [2021-12-17 15:05:12,385 INFO L226 Difference]: Without dead ends: 612 [2021-12-17 15:05:12,386 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 [2021-12-17 15:05:12,386 INFO L933 BasicCegarLoop]: 679 mSDtfsCounter, 1365 mSDsluCounter, 1236 mSDsCounter, 0 mSdLazyCounter, 2072 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 1915 SdHoareTripleChecker+Invalid, 2584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 2072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-17 15:05:12,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1386 Valid, 1915 Invalid, 2584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 2072 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-17 15:05:12,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2021-12-17 15:05:12,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 445. [2021-12-17 15:05:12,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 349 states have (on average 1.5730659025787965) internal successors, (549), 356 states have internal predecessors, (549), 71 states have call successors, (71), 21 states have call predecessors, (71), 24 states have return successors, (78), 69 states have call predecessors, (78), 70 states have call successors, (78) [2021-12-17 15:05:12,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 698 transitions. [2021-12-17 15:05:12,408 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 698 transitions. Word has length 110 [2021-12-17 15:05:12,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:05:12,408 INFO L470 AbstractCegarLoop]: Abstraction has 445 states and 698 transitions. [2021-12-17 15:05:12,409 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) [2021-12-17 15:05:12,409 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 698 transitions. [2021-12-17 15:05:12,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-17 15:05:12,411 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:05:12,411 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] [2021-12-17 15:05:12,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 15:05:12,411 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:05:12,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:05:12,412 INFO L85 PathProgramCache]: Analyzing trace with hash -826085111, now seen corresponding path program 1 times [2021-12-17 15:05:12,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:05:12,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177148046] [2021-12-17 15:05:12,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:05:12,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:05:12,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:12,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:05:12,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:12,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:05:12,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:12,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:05:12,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:12,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:05:12,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:12,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:05:12,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:12,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:05:12,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:12,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-17 15:05:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:12,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-17 15:05:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:12,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-17 15:05:12,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:12,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-17 15:05:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:12,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-17 15:05:12,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:12,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-17 15:05:12,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:12,533 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-17 15:05:12,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:05:12,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177148046] [2021-12-17 15:05:12,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177148046] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:05:12,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:05:12,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 15:05:12,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474581144] [2021-12-17 15:05:12,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:05:12,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 15:05:12,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:05:12,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 15:05:12,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-17 15:05:12,536 INFO L87 Difference]: Start difference. First operand 445 states and 698 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) [2021-12-17 15:05:15,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:05:15,805 INFO L93 Difference]: Finished difference Result 1030 states and 1632 transitions. [2021-12-17 15:05:15,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 15:05:15,806 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 [2021-12-17 15:05:15,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:05:15,811 INFO L225 Difference]: With dead ends: 1030 [2021-12-17 15:05:15,812 INFO L226 Difference]: Without dead ends: 612 [2021-12-17 15:05:15,813 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 [2021-12-17 15:05:15,815 INFO L933 BasicCegarLoop]: 673 mSDtfsCounter, 1497 mSDsluCounter, 1836 mSDsCounter, 0 mSdLazyCounter, 3758 mSolverCounterSat, 562 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 2509 SdHoareTripleChecker+Invalid, 4320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 562 IncrementalHoareTripleChecker+Valid, 3758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-12-17 15:05:15,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1497 Valid, 2509 Invalid, 4320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [562 Valid, 3758 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-12-17 15:05:15,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2021-12-17 15:05:15,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 445. [2021-12-17 15:05:15,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 349 states have (on average 1.5730659025787965) internal successors, (549), 356 states have internal predecessors, (549), 71 states have call successors, (71), 21 states have call predecessors, (71), 24 states have return successors, (77), 69 states have call predecessors, (77), 70 states have call successors, (77) [2021-12-17 15:05:15,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 697 transitions. [2021-12-17 15:05:15,860 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 697 transitions. Word has length 110 [2021-12-17 15:05:15,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:05:15,860 INFO L470 AbstractCegarLoop]: Abstraction has 445 states and 697 transitions. [2021-12-17 15:05:15,861 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) [2021-12-17 15:05:15,861 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 697 transitions. [2021-12-17 15:05:15,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-17 15:05:15,862 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:05:15,862 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] [2021-12-17 15:05:15,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-17 15:05:15,862 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:05:15,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:05:15,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1095751515, now seen corresponding path program 2 times [2021-12-17 15:05:15,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:05:15,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631800981] [2021-12-17 15:05:15,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:05:15,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:05:15,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:15,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:05:15,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:15,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:05:15,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:15,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:05:15,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:15,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:05:15,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:15,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:05:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:15,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:05:15,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:16,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-17 15:05:16,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:16,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-17 15:05:16,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:16,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-17 15:05:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:16,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-17 15:05:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:16,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-17 15:05:16,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:16,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-17 15:05:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:16,044 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-17 15:05:16,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:05:16,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631800981] [2021-12-17 15:05:16,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631800981] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:05:16,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:05:16,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 15:05:16,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519021580] [2021-12-17 15:05:16,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:05:16,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 15:05:16,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:05:16,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 15:05:16,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-17 15:05:16,046 INFO L87 Difference]: Start difference. First operand 445 states and 697 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) [2021-12-17 15:05:18,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:05:18,616 INFO L93 Difference]: Finished difference Result 1032 states and 1638 transitions. [2021-12-17 15:05:18,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-17 15:05:18,617 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 [2021-12-17 15:05:18,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:05:18,620 INFO L225 Difference]: With dead ends: 1032 [2021-12-17 15:05:18,621 INFO L226 Difference]: Without dead ends: 614 [2021-12-17 15:05:18,622 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 [2021-12-17 15:05:18,622 INFO L933 BasicCegarLoop]: 668 mSDtfsCounter, 1496 mSDsluCounter, 1819 mSDsCounter, 0 mSdLazyCounter, 3767 mSolverCounterSat, 562 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 2487 SdHoareTripleChecker+Invalid, 4329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 562 IncrementalHoareTripleChecker+Valid, 3767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-17 15:05:18,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1496 Valid, 2487 Invalid, 4329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [562 Valid, 3767 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-17 15:05:18,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2021-12-17 15:05:18,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 447. [2021-12-17 15:05:18,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 350 states have (on average 1.5714285714285714) internal successors, (550), 358 states have internal predecessors, (550), 71 states have call successors, (71), 21 states have call predecessors, (71), 25 states have return successors, (82), 69 states have call predecessors, (82), 70 states have call successors, (82) [2021-12-17 15:05:18,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 703 transitions. [2021-12-17 15:05:18,679 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 703 transitions. Word has length 111 [2021-12-17 15:05:18,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:05:18,680 INFO L470 AbstractCegarLoop]: Abstraction has 447 states and 703 transitions. [2021-12-17 15:05:18,680 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) [2021-12-17 15:05:18,680 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 703 transitions. [2021-12-17 15:05:18,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-17 15:05:18,682 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:05:18,682 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] [2021-12-17 15:05:18,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-17 15:05:18,683 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:05:18,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:05:18,684 INFO L85 PathProgramCache]: Analyzing trace with hash -628108700, now seen corresponding path program 1 times [2021-12-17 15:05:18,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:05:18,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664652157] [2021-12-17 15:05:18,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:05:18,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:05:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:18,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:05:18,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:18,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:05:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:18,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:05:18,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:18,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:05:18,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:18,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:05:18,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:18,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:05:18,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:18,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-17 15:05:18,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:18,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-17 15:05:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:18,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 15:05:18,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:18,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-17 15:05:18,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:18,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-17 15:05:18,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:18,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-17 15:05:18,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:18,856 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:05:18,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:05:18,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664652157] [2021-12-17 15:05:18,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664652157] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:05:18,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486204392] [2021-12-17 15:05:18,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:05:18,858 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:05:18,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:05:18,859 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 15:05:18,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-17 15:05:19,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:19,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 1073 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 15:05:19,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:05:19,313 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:05:19,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 15:05:19,595 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:05:19,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1486204392] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 15:05:19,596 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 15:05:19,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2021-12-17 15:05:19,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723836846] [2021-12-17 15:05:19,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 15:05:19,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-17 15:05:19,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:05:19,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-17 15:05:19,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-17 15:05:19,614 INFO L87 Difference]: Start difference. First operand 447 states and 703 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) [2021-12-17 15:05:21,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:05:21,654 INFO L93 Difference]: Finished difference Result 1234 states and 2031 transitions. [2021-12-17 15:05:21,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 15:05:21,655 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 [2021-12-17 15:05:21,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:05:21,664 INFO L225 Difference]: With dead ends: 1234 [2021-12-17 15:05:21,664 INFO L226 Difference]: Without dead ends: 1056 [2021-12-17 15:05:21,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2021-12-17 15:05:21,679 INFO L933 BasicCegarLoop]: 782 mSDtfsCounter, 1692 mSDsluCounter, 1642 mSDsCounter, 0 mSdLazyCounter, 1910 mSolverCounterSat, 698 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1749 SdHoareTripleChecker+Valid, 2424 SdHoareTripleChecker+Invalid, 2608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 698 IncrementalHoareTripleChecker+Valid, 1910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-17 15:05:21,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1749 Valid, 2424 Invalid, 2608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [698 Valid, 1910 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-17 15:05:21,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2021-12-17 15:05:21,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 865. [2021-12-17 15:05:21,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 689 states have (on average 1.629898403483309) internal successors, (1123), 697 states have internal predecessors, (1123), 150 states have call successors, (150), 21 states have call predecessors, (150), 25 states have return successors, (171), 148 states have call predecessors, (171), 149 states have call successors, (171) [2021-12-17 15:05:21,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1444 transitions. [2021-12-17 15:05:21,792 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1444 transitions. Word has length 112 [2021-12-17 15:05:21,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:05:21,793 INFO L470 AbstractCegarLoop]: Abstraction has 865 states and 1444 transitions. [2021-12-17 15:05:21,793 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) [2021-12-17 15:05:21,793 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1444 transitions. [2021-12-17 15:05:21,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-17 15:05:21,797 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:05:21,797 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] [2021-12-17 15:05:21,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-17 15:05:22,015 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 [2021-12-17 15:05:22,015 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:05:22,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:05:22,016 INFO L85 PathProgramCache]: Analyzing trace with hash 394224551, now seen corresponding path program 1 times [2021-12-17 15:05:22,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:05:22,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679960288] [2021-12-17 15:05:22,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:05:22,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:05:22,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:22,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:05:22,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:22,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:05:22,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:22,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:05:22,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:22,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:05:22,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:22,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:05:22,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:22,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:05:22,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:22,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-17 15:05:22,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:22,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-17 15:05:22,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:22,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-17 15:05:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:22,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-17 15:05:22,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:22,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-17 15:05:22,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:22,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-17 15:05:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:22,170 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:05:22,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:05:22,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679960288] [2021-12-17 15:05:22,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679960288] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:05:22,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:05:22,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:05:22,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686343532] [2021-12-17 15:05:22,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:05:22,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:05:22,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:05:22,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:05:22,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:05:22,187 INFO L87 Difference]: Start difference. First operand 865 states and 1444 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) [2021-12-17 15:05:23,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:05:23,760 INFO L93 Difference]: Finished difference Result 2252 states and 3832 transitions. [2021-12-17 15:05:23,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:05:23,760 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 [2021-12-17 15:05:23,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:05:23,768 INFO L225 Difference]: With dead ends: 2252 [2021-12-17 15:05:23,768 INFO L226 Difference]: Without dead ends: 1455 [2021-12-17 15:05:23,771 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 [2021-12-17 15:05:23,771 INFO L933 BasicCegarLoop]: 732 mSDtfsCounter, 1354 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1372 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 1680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 567 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 15:05:23,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1372 Valid, 1664 Invalid, 1680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [567 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 15:05:23,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2021-12-17 15:05:23,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1280. [2021-12-17 15:05:23,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 1025 states have (on average 1.641951219512195) internal successors, (1683), 1033 states have internal predecessors, (1683), 229 states have call successors, (229), 21 states have call predecessors, (229), 25 states have return successors, (260), 227 states have call predecessors, (260), 228 states have call successors, (260) [2021-12-17 15:05:23,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 2172 transitions. [2021-12-17 15:05:23,829 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 2172 transitions. Word has length 118 [2021-12-17 15:05:23,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:05:23,829 INFO L470 AbstractCegarLoop]: Abstraction has 1280 states and 2172 transitions. [2021-12-17 15:05:23,830 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) [2021-12-17 15:05:23,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 2172 transitions. [2021-12-17 15:05:23,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-17 15:05:23,835 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:05:23,835 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] [2021-12-17 15:05:23,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-17 15:05:23,836 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:05:23,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:05:23,836 INFO L85 PathProgramCache]: Analyzing trace with hash 881875999, now seen corresponding path program 1 times [2021-12-17 15:05:23,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:05:23,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527387364] [2021-12-17 15:05:23,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:05:23,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:05:23,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:23,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:05:23,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:23,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:05:23,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:23,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:05:23,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:23,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:05:23,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:23,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:05:23,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:23,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:05:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:23,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-17 15:05:23,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:23,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-17 15:05:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:23,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-17 15:05:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:23,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-17 15:05:23,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:23,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-17 15:05:23,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:23,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-17 15:05:23,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:23,929 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:05:23,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:05:23,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527387364] [2021-12-17 15:05:23,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527387364] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:05:23,930 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:05:23,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:05:23,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865251733] [2021-12-17 15:05:23,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:05:23,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:05:23,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:05:23,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:05:23,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:05:23,932 INFO L87 Difference]: Start difference. First operand 1280 states and 2172 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) [2021-12-17 15:05:25,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:05:25,223 INFO L93 Difference]: Finished difference Result 3266 states and 5610 transitions. [2021-12-17 15:05:25,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:05:25,224 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 [2021-12-17 15:05:25,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:05:25,241 INFO L225 Difference]: With dead ends: 3266 [2021-12-17 15:05:25,241 INFO L226 Difference]: Without dead ends: 2107 [2021-12-17 15:05:25,246 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 [2021-12-17 15:05:25,247 INFO L933 BasicCegarLoop]: 712 mSDtfsCounter, 1352 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 1094 mSolverCounterSat, 569 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 1590 SdHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 569 IncrementalHoareTripleChecker+Valid, 1094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:05:25,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1370 Valid, 1590 Invalid, 1663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [569 Valid, 1094 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-17 15:05:25,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2107 states. [2021-12-17 15:05:25,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2107 to 1932. [2021-12-17 15:05:25,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1932 states, 1558 states have (on average 1.649550706033376) internal successors, (2570), 1566 states have internal predecessors, (2570), 348 states have call successors, (348), 21 states have call predecessors, (348), 25 states have return successors, (379), 346 states have call predecessors, (379), 347 states have call successors, (379) [2021-12-17 15:05:25,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1932 states to 1932 states and 3297 transitions. [2021-12-17 15:05:25,372 INFO L78 Accepts]: Start accepts. Automaton has 1932 states and 3297 transitions. Word has length 119 [2021-12-17 15:05:25,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:05:25,373 INFO L470 AbstractCegarLoop]: Abstraction has 1932 states and 3297 transitions. [2021-12-17 15:05:25,373 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) [2021-12-17 15:05:25,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1932 states and 3297 transitions. [2021-12-17 15:05:25,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-17 15:05:25,382 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:05:25,383 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] [2021-12-17 15:05:25,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-17 15:05:25,383 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:05:25,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:05:25,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1047346939, now seen corresponding path program 1 times [2021-12-17 15:05:25,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:05:25,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135191087] [2021-12-17 15:05:25,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:05:25,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:05:25,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:25,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:05:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:25,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:05:25,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:25,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:05:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:25,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:05:25,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:25,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:05:25,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:25,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:05:25,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:25,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-17 15:05:25,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:25,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-17 15:05:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:25,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-17 15:05:25,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:25,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-17 15:05:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:25,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-17 15:05:25,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:25,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-17 15:05:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:25,460 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:05:25,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:05:25,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135191087] [2021-12-17 15:05:25,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135191087] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:05:25,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:05:25,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:05:25,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941320555] [2021-12-17 15:05:25,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:05:25,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:05:25,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:05:25,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:05:25,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:05:25,462 INFO L87 Difference]: Start difference. First operand 1932 states and 3297 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) [2021-12-17 15:05:26,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:05:26,652 INFO L93 Difference]: Finished difference Result 4796 states and 8312 transitions. [2021-12-17 15:05:26,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:05:26,653 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 [2021-12-17 15:05:26,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:05:26,665 INFO L225 Difference]: With dead ends: 4796 [2021-12-17 15:05:26,665 INFO L226 Difference]: Without dead ends: 3110 [2021-12-17 15:05:26,670 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 [2021-12-17 15:05:26,670 INFO L933 BasicCegarLoop]: 714 mSDtfsCounter, 1351 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 542 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 1594 SdHoareTripleChecker+Invalid, 1644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 542 IncrementalHoareTripleChecker+Valid, 1102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:05:26,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1370 Valid, 1594 Invalid, 1644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [542 Valid, 1102 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-17 15:05:26,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3110 states. [2021-12-17 15:05:26,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3110 to 2935. [2021-12-17 15:05:26,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2935 states, 2399 states have (on average 1.6556898707794914) internal successors, (3972), 2407 states have internal predecessors, (3972), 510 states have call successors, (510), 21 states have call predecessors, (510), 25 states have return successors, (557), 508 states have call predecessors, (557), 509 states have call successors, (557) [2021-12-17 15:05:26,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2935 states to 2935 states and 5039 transitions. [2021-12-17 15:05:26,807 INFO L78 Accepts]: Start accepts. Automaton has 2935 states and 5039 transitions. Word has length 120 [2021-12-17 15:05:26,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:05:26,807 INFO L470 AbstractCegarLoop]: Abstraction has 2935 states and 5039 transitions. [2021-12-17 15:05:26,807 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) [2021-12-17 15:05:26,807 INFO L276 IsEmpty]: Start isEmpty. Operand 2935 states and 5039 transitions. [2021-12-17 15:05:26,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-17 15:05:26,816 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:05:26,816 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] [2021-12-17 15:05:26,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-17 15:05:26,817 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:05:26,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:05:26,817 INFO L85 PathProgramCache]: Analyzing trace with hash 792293982, now seen corresponding path program 1 times [2021-12-17 15:05:26,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:05:26,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526484492] [2021-12-17 15:05:26,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:05:26,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:05:26,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:26,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:05:26,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:26,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:05:26,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:26,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:05:26,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:26,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:05:26,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:26,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:05:26,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:26,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:05:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:26,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-17 15:05:26,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:26,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 15:05:26,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:26,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-17 15:05:26,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:26,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-17 15:05:26,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:26,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-17 15:05:26,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:26,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-17 15:05:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:26,888 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:05:26,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:05:26,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526484492] [2021-12-17 15:05:26,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526484492] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:05:26,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:05:26,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:05:26,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875093584] [2021-12-17 15:05:26,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:05:26,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:05:26,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:05:26,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:05:26,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:05:26,889 INFO L87 Difference]: Start difference. First operand 2935 states and 5039 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) [2021-12-17 15:05:28,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:05:28,191 INFO L93 Difference]: Finished difference Result 7220 states and 12601 transitions. [2021-12-17 15:05:28,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:05:28,192 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 [2021-12-17 15:05:28,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:05:28,243 INFO L225 Difference]: With dead ends: 7220 [2021-12-17 15:05:28,244 INFO L226 Difference]: Without dead ends: 4735 [2021-12-17 15:05:28,251 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 [2021-12-17 15:05:28,251 INFO L933 BasicCegarLoop]: 713 mSDtfsCounter, 1349 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 558 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1367 SdHoareTripleChecker+Valid, 1592 SdHoareTripleChecker+Invalid, 1653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 558 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:05:28,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1367 Valid, 1592 Invalid, 1653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [558 Valid, 1095 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-17 15:05:28,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4735 states. [2021-12-17 15:05:28,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4735 to 4560. [2021-12-17 15:05:28,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4560 states, 3779 states have (on average 1.6599629531622122) internal successors, (6273), 3787 states have internal predecessors, (6273), 755 states have call successors, (755), 21 states have call predecessors, (755), 25 states have return successors, (828), 753 states have call predecessors, (828), 754 states have call successors, (828) [2021-12-17 15:05:28,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4560 states to 4560 states and 7856 transitions. [2021-12-17 15:05:28,740 INFO L78 Accepts]: Start accepts. Automaton has 4560 states and 7856 transitions. Word has length 121 [2021-12-17 15:05:28,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:05:28,741 INFO L470 AbstractCegarLoop]: Abstraction has 4560 states and 7856 transitions. [2021-12-17 15:05:28,741 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) [2021-12-17 15:05:28,741 INFO L276 IsEmpty]: Start isEmpty. Operand 4560 states and 7856 transitions. [2021-12-17 15:05:28,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-17 15:05:28,798 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:05:28,798 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] [2021-12-17 15:05:28,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-17 15:05:28,799 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:05:28,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:05:28,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1500097655, now seen corresponding path program 1 times [2021-12-17 15:05:28,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:05:28,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406338089] [2021-12-17 15:05:28,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:05:28,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:05:28,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:28,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:05:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:28,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:05:28,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:28,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:05:28,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:28,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:05:28,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:28,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:05:28,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:28,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:05:28,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:28,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-17 15:05:28,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:28,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-17 15:05:28,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:28,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-17 15:05:28,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:28,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 15:05:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:28,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-17 15:05:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:28,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-17 15:05:28,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:28,982 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:05:28,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:05:28,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406338089] [2021-12-17 15:05:28,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406338089] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:05:28,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:05:28,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:05:28,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303655383] [2021-12-17 15:05:28,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:05:28,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:05:28,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:05:28,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:05:28,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:05:28,997 INFO L87 Difference]: Start difference. First operand 4560 states and 7856 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) [2021-12-17 15:05:30,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:05:30,682 INFO L93 Difference]: Finished difference Result 11266 states and 19761 transitions. [2021-12-17 15:05:30,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:05:30,682 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 [2021-12-17 15:05:30,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:05:30,777 INFO L225 Difference]: With dead ends: 11266 [2021-12-17 15:05:30,778 INFO L226 Difference]: Without dead ends: 7468 [2021-12-17 15:05:30,792 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 [2021-12-17 15:05:30,805 INFO L933 BasicCegarLoop]: 729 mSDtfsCounter, 1347 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 561 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1365 SdHoareTripleChecker+Valid, 1647 SdHoareTripleChecker+Invalid, 1670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 561 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 15:05:30,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1365 Valid, 1647 Invalid, 1670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [561 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 15:05:30,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7468 states. [2021-12-17 15:05:31,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7468 to 7293. [2021-12-17 15:05:31,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7293 states, 6019 states have (on average 1.657750456886526) internal successors, (9978), 6027 states have internal predecessors, (9978), 1248 states have call successors, (1248), 21 states have call predecessors, (1248), 25 states have return successors, (1365), 1246 states have call predecessors, (1365), 1247 states have call successors, (1365) [2021-12-17 15:05:31,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7293 states to 7293 states and 12591 transitions. [2021-12-17 15:05:31,369 INFO L78 Accepts]: Start accepts. Automaton has 7293 states and 12591 transitions. Word has length 122 [2021-12-17 15:05:31,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:05:31,369 INFO L470 AbstractCegarLoop]: Abstraction has 7293 states and 12591 transitions. [2021-12-17 15:05:31,369 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) [2021-12-17 15:05:31,369 INFO L276 IsEmpty]: Start isEmpty. Operand 7293 states and 12591 transitions. [2021-12-17 15:05:31,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-17 15:05:31,386 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:05:31,386 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] [2021-12-17 15:05:31,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-17 15:05:31,387 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:05:31,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:05:31,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1030468570, now seen corresponding path program 1 times [2021-12-17 15:05:31,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:05:31,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184053905] [2021-12-17 15:05:31,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:05:31,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:05:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:31,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:05:31,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:31,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:05:31,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:31,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:05:31,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:31,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:05:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:31,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:05:31,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:31,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:05:31,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:31,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-17 15:05:31,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:31,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-17 15:05:31,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:31,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-17 15:05:31,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:31,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-17 15:05:31,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:31,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-17 15:05:31,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:31,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-17 15:05:31,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:31,462 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:05:31,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:05:31,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184053905] [2021-12-17 15:05:31,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184053905] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:05:31,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:05:31,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:05:31,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230382519] [2021-12-17 15:05:31,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:05:31,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:05:31,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:05:31,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:05:31,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:05:31,465 INFO L87 Difference]: Start difference. First operand 7293 states and 12591 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) [2021-12-17 15:05:33,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:05:33,003 INFO L93 Difference]: Finished difference Result 18601 states and 32645 transitions. [2021-12-17 15:05:33,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:05:33,009 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 [2021-12-17 15:05:33,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:05:33,101 INFO L225 Difference]: With dead ends: 18601 [2021-12-17 15:05:33,115 INFO L226 Difference]: Without dead ends: 12447 [2021-12-17 15:05:33,146 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 [2021-12-17 15:05:33,159 INFO L933 BasicCegarLoop]: 726 mSDtfsCounter, 1342 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1360 SdHoareTripleChecker+Valid, 1633 SdHoareTripleChecker+Invalid, 1665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:05:33,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1360 Valid, 1633 Invalid, 1665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 1115 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-17 15:05:33,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12447 states. [2021-12-17 15:05:33,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12447 to 12272. [2021-12-17 15:05:33,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12272 states, 10176 states have (on average 1.657625786163522) internal successors, (16868), 10184 states have internal predecessors, (16868), 2070 states have call successors, (2070), 21 states have call predecessors, (2070), 25 states have return successors, (2265), 2068 states have call predecessors, (2265), 2069 states have call successors, (2265) [2021-12-17 15:05:33,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12272 states to 12272 states and 21203 transitions. [2021-12-17 15:05:33,754 INFO L78 Accepts]: Start accepts. Automaton has 12272 states and 21203 transitions. Word has length 123 [2021-12-17 15:05:33,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:05:33,755 INFO L470 AbstractCegarLoop]: Abstraction has 12272 states and 21203 transitions. [2021-12-17 15:05:33,755 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) [2021-12-17 15:05:33,755 INFO L276 IsEmpty]: Start isEmpty. Operand 12272 states and 21203 transitions. [2021-12-17 15:05:33,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-17 15:05:33,772 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:05:33,772 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] [2021-12-17 15:05:33,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-17 15:05:33,772 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:05:33,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:05:33,773 INFO L85 PathProgramCache]: Analyzing trace with hash -568781541, now seen corresponding path program 1 times [2021-12-17 15:05:33,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:05:33,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3802429] [2021-12-17 15:05:33,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:05:33,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:05:33,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:33,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:05:33,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:33,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:05:33,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:33,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:05:33,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:33,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:05:33,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:33,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:05:33,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:33,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:05:33,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:33,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-17 15:05:33,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:33,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-17 15:05:33,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:33,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-17 15:05:33,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:33,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-17 15:05:33,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:33,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-17 15:05:33,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:33,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-17 15:05:33,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:33,873 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:05:33,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:05:33,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3802429] [2021-12-17 15:05:33,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3802429] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:05:33,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:05:33,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:05:33,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902956528] [2021-12-17 15:05:33,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:05:33,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:05:33,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:05:33,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:05:33,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:05:33,876 INFO L87 Difference]: Start difference. First operand 12272 states and 21203 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) [2021-12-17 15:05:35,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:05:35,802 INFO L93 Difference]: Finished difference Result 29559 states and 51610 transitions. [2021-12-17 15:05:35,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:05:35,803 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 [2021-12-17 15:05:35,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:05:35,873 INFO L225 Difference]: With dead ends: 29559 [2021-12-17 15:05:35,874 INFO L226 Difference]: Without dead ends: 19400 [2021-12-17 15:05:35,900 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 [2021-12-17 15:05:35,901 INFO L933 BasicCegarLoop]: 726 mSDtfsCounter, 1340 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1358 SdHoareTripleChecker+Valid, 1609 SdHoareTripleChecker+Invalid, 1657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:05:35,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1358 Valid, 1609 Invalid, 1657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-17 15:05:35,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19400 states. [2021-12-17 15:05:36,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19400 to 19225. [2021-12-17 15:05:36,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19225 states, 15926 states have (on average 1.633178450332789) internal successors, (26010), 15934 states have internal predecessors, (26010), 3273 states have call successors, (3273), 21 states have call predecessors, (3273), 25 states have return successors, (3612), 3271 states have call predecessors, (3612), 3272 states have call successors, (3612) [2021-12-17 15:05:37,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19225 states to 19225 states and 32895 transitions. [2021-12-17 15:05:37,093 INFO L78 Accepts]: Start accepts. Automaton has 19225 states and 32895 transitions. Word has length 124 [2021-12-17 15:05:37,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:05:37,094 INFO L470 AbstractCegarLoop]: Abstraction has 19225 states and 32895 transitions. [2021-12-17 15:05:37,094 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) [2021-12-17 15:05:37,094 INFO L276 IsEmpty]: Start isEmpty. Operand 19225 states and 32895 transitions. [2021-12-17 15:05:37,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-17 15:05:37,143 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:05:37,143 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] [2021-12-17 15:05:37,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-17 15:05:37,143 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:05:37,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:05:37,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1668476153, now seen corresponding path program 1 times [2021-12-17 15:05:37,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:05:37,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390612969] [2021-12-17 15:05:37,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:05:37,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:05:37,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:37,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:05:37,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:37,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:05:37,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:37,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:05:37,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:37,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:05:37,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:37,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:05:37,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:37,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:05:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:37,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-17 15:05:37,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:37,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-17 15:05:37,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:37,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-17 15:05:37,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:37,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-17 15:05:37,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:37,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-17 15:05:37,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:37,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-17 15:05:37,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:37,275 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:05:37,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:05:37,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390612969] [2021-12-17 15:05:37,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390612969] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:05:37,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:05:37,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:05:37,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259568923] [2021-12-17 15:05:37,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:05:37,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:05:37,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:05:37,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:05:37,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:05:37,293 INFO L87 Difference]: Start difference. First operand 19225 states and 32895 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) [2021-12-17 15:05:40,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:05:40,082 INFO L93 Difference]: Finished difference Result 50991 states and 88730 transitions. [2021-12-17 15:05:40,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:05:40,082 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 [2021-12-17 15:05:40,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:05:40,270 INFO L225 Difference]: With dead ends: 50991 [2021-12-17 15:05:40,271 INFO L226 Difference]: Without dead ends: 34521 [2021-12-17 15:05:40,310 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 [2021-12-17 15:05:40,311 INFO L933 BasicCegarLoop]: 720 mSDtfsCounter, 1338 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 559 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1356 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 1671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 559 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:05:40,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1356 Valid, 1606 Invalid, 1671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [559 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-17 15:05:40,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34521 states. [2021-12-17 15:05:41,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34521 to 34346. [2021-12-17 15:05:41,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34346 states, 28597 states have (on average 1.6299961534426688) internal successors, (46613), 28605 states have internal predecessors, (46613), 5723 states have call successors, (5723), 21 states have call predecessors, (5723), 25 states have return successors, (6336), 5721 states have call predecessors, (6336), 5722 states have call successors, (6336) [2021-12-17 15:05:42,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34346 states to 34346 states and 58672 transitions. [2021-12-17 15:05:42,244 INFO L78 Accepts]: Start accepts. Automaton has 34346 states and 58672 transitions. Word has length 125 [2021-12-17 15:05:42,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:05:42,244 INFO L470 AbstractCegarLoop]: Abstraction has 34346 states and 58672 transitions. [2021-12-17 15:05:42,245 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) [2021-12-17 15:05:42,245 INFO L276 IsEmpty]: Start isEmpty. Operand 34346 states and 58672 transitions. [2021-12-17 15:05:42,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-12-17 15:05:42,272 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:05:42,272 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] [2021-12-17 15:05:42,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-17 15:05:42,272 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:05:42,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:05:42,273 INFO L85 PathProgramCache]: Analyzing trace with hash 736334849, now seen corresponding path program 1 times [2021-12-17 15:05:42,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:05:42,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524866531] [2021-12-17 15:05:42,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:05:42,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:05:42,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:42,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:05:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:42,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:05:42,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:42,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:05:42,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:42,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:05:42,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:42,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:05:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:42,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:05:42,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:42,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-17 15:05:42,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:42,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-17 15:05:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:42,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-17 15:05:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:42,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-17 15:05:42,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:42,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-17 15:05:42,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:42,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-17 15:05:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:42,384 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:05:42,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:05:42,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524866531] [2021-12-17 15:05:42,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524866531] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:05:42,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:05:42,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:05:42,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003497727] [2021-12-17 15:05:42,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:05:42,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:05:42,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:05:42,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:05:42,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:05:42,387 INFO L87 Difference]: Start difference. First operand 34346 states and 58672 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) [2021-12-17 15:05:46,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:05:46,795 INFO L93 Difference]: Finished difference Result 93863 states and 162524 transitions. [2021-12-17 15:05:46,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:05:46,797 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 [2021-12-17 15:05:46,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:05:47,084 INFO L225 Difference]: With dead ends: 93863 [2021-12-17 15:05:47,084 INFO L226 Difference]: Without dead ends: 63188 [2021-12-17 15:05:47,165 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 [2021-12-17 15:05:47,166 INFO L933 BasicCegarLoop]: 728 mSDtfsCounter, 1336 mSDsluCounter, 915 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 554 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1354 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 1665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 554 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-17 15:05:47,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1354 Valid, 1643 Invalid, 1665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [554 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-17 15:05:47,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63188 states. [2021-12-17 15:05:50,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63188 to 63013. [2021-12-17 15:05:50,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63013 states, 52751 states have (on average 1.625826998540312) internal successors, (85764), 52759 states have internal predecessors, (85764), 10236 states have call successors, (10236), 21 states have call predecessors, (10236), 25 states have return successors, (11381), 10234 states have call predecessors, (11381), 10235 states have call successors, (11381) [2021-12-17 15:05:50,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63013 states to 63013 states and 107381 transitions. [2021-12-17 15:05:50,674 INFO L78 Accepts]: Start accepts. Automaton has 63013 states and 107381 transitions. Word has length 126 [2021-12-17 15:05:50,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:05:50,676 INFO L470 AbstractCegarLoop]: Abstraction has 63013 states and 107381 transitions. [2021-12-17 15:05:50,676 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) [2021-12-17 15:05:50,676 INFO L276 IsEmpty]: Start isEmpty. Operand 63013 states and 107381 transitions. [2021-12-17 15:05:51,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-17 15:05:51,061 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:05:51,061 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] [2021-12-17 15:05:51,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-17 15:05:51,062 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:05:51,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:05:51,062 INFO L85 PathProgramCache]: Analyzing trace with hash -164365415, now seen corresponding path program 1 times [2021-12-17 15:05:51,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:05:51,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005817222] [2021-12-17 15:05:51,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:05:51,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:05:51,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:51,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:05:51,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:51,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:05:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:51,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:05:51,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:51,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:05:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:51,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:05:51,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:51,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:05:51,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:51,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-17 15:05:51,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:51,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-17 15:05:51,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:51,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-17 15:05:51,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:51,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-17 15:05:51,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:51,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-17 15:05:51,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:51,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-17 15:05:51,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:05:51,204 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:05:51,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:05:51,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005817222] [2021-12-17 15:05:51,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005817222] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:05:51,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:05:51,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:05:51,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619940639] [2021-12-17 15:05:51,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:05:51,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:05:51,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:05:51,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:05:51,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:05:51,206 INFO L87 Difference]: Start difference. First operand 63013 states and 107381 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) [2021-12-17 15:05:56,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:05:56,141 INFO L93 Difference]: Finished difference Result 118239 states and 205158 transitions. [2021-12-17 15:05:56,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:05:56,141 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 [2021-12-17 15:05:56,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:05:56,868 INFO L225 Difference]: With dead ends: 118239 [2021-12-17 15:05:56,868 INFO L226 Difference]: Without dead ends: 118061 [2021-12-17 15:05:56,934 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 [2021-12-17 15:05:56,935 INFO L933 BasicCegarLoop]: 717 mSDtfsCounter, 1334 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 581 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1352 SdHoareTripleChecker+Valid, 1599 SdHoareTripleChecker+Invalid, 1676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 581 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:05:56,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1352 Valid, 1599 Invalid, 1676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [581 Valid, 1095 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-17 15:05:57,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118061 states. [2021-12-17 15:06:02,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118061 to 117886. [2021-12-17 15:06:02,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117886 states, 99256 states have (on average 1.6206073184492624) internal successors, (160855), 99264 states have internal predecessors, (160855), 18604 states have call successors, (18604), 21 states have call predecessors, (18604), 25 states have return successors, (20795), 18602 states have call predecessors, (20795), 18603 states have call successors, (20795) [2021-12-17 15:06:03,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117886 states to 117886 states and 200254 transitions. [2021-12-17 15:06:03,130 INFO L78 Accepts]: Start accepts. Automaton has 117886 states and 200254 transitions. Word has length 127 [2021-12-17 15:06:03,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:06:03,131 INFO L470 AbstractCegarLoop]: Abstraction has 117886 states and 200254 transitions. [2021-12-17 15:06:03,131 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) [2021-12-17 15:06:03,131 INFO L276 IsEmpty]: Start isEmpty. Operand 117886 states and 200254 transitions. [2021-12-17 15:06:03,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-17 15:06:03,161 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:06:03,161 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] [2021-12-17 15:06:03,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-17 15:06:03,162 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:06:03,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:06:03,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1614008734, now seen corresponding path program 1 times [2021-12-17 15:06:03,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:06:03,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722133561] [2021-12-17 15:06:03,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:06:03,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:06:03,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:03,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-17 15:06:03,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:03,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-17 15:06:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:03,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-17 15:06:03,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:03,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-17 15:06:03,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:03,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-17 15:06:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:03,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-17 15:06:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:03,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-17 15:06:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:03,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-17 15:06:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:03,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-17 15:06:03,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:03,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-17 15:06:03,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:03,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-17 15:06:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:03,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-17 15:06:03,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:06:03,443 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-17 15:06:03,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:06:03,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722133561] [2021-12-17 15:06:03,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722133561] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:06:03,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:06:03,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-12-17 15:06:03,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630989339] [2021-12-17 15:06:03,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:06:03,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-17 15:06:03,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:06:03,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-17 15:06:03,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-12-17 15:06:03,445 INFO L87 Difference]: Start difference. First operand 117886 states and 200254 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) [2021-12-17 15:06:18,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:06:18,699 INFO L93 Difference]: Finished difference Result 235606 states and 412174 transitions. [2021-12-17 15:06:18,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-12-17 15:06:18,700 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 [2021-12-17 15:06:18,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:06:20,297 INFO L225 Difference]: With dead ends: 235606 [2021-12-17 15:06:20,297 INFO L226 Difference]: Without dead ends: 235434 [2021-12-17 15:06:20,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1077 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=691, Invalid=2849, Unknown=0, NotChecked=0, Total=3540 [2021-12-17 15:06:20,436 INFO L933 BasicCegarLoop]: 868 mSDtfsCounter, 4810 mSDsluCounter, 3255 mSDsCounter, 0 mSdLazyCounter, 9788 mSolverCounterSat, 2255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4824 SdHoareTripleChecker+Valid, 4123 SdHoareTripleChecker+Invalid, 12043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2255 IncrementalHoareTripleChecker+Valid, 9788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-12-17 15:06:20,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4824 Valid, 4123 Invalid, 12043 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2255 Valid, 9788 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2021-12-17 15:06:20,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235434 states.