./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_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 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 14:42:32,571 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 14:42:32,573 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 14:42:32,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 14:42:32,609 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 14:42:32,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 14:42:32,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 14:42:32,617 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 14:42:32,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 14:42:32,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 14:42:32,628 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 14:42:32,629 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 14:42:32,630 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 14:42:32,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 14:42:32,645 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 14:42:32,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 14:42:32,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 14:42:32,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 14:42:32,648 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 14:42:32,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 14:42:32,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 14:42:32,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 14:42:32,652 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 14:42:32,653 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 14:42:32,656 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 14:42:32,656 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 14:42:32,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 14:42:32,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 14:42:32,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 14:42:32,658 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 14:42:32,658 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 14:42:32,659 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 14:42:32,659 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 14:42:32,660 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 14:42:32,661 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 14:42:32,661 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 14:42:32,662 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 14:42:32,662 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 14:42:32,662 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 14:42:32,663 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 14:42:32,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 14:42:32,664 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 14:42:32,698 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 14:42:32,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 14:42:32,700 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 14:42:32,700 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 14:42:32,701 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 14:42:32,702 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 14:42:32,702 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 14:42:32,702 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 14:42:32,702 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 14:42:32,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 14:42:32,704 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 14:42:32,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 14:42:32,704 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 14:42:32,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 14:42:32,704 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 14:42:32,704 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 14:42:32,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 14:42:32,705 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 14:42:32,705 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 14:42:32,705 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 14:42:32,705 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 14:42:32,706 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 14:42:32,706 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 14:42:32,706 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 14:42:32,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 14:42:32,706 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 14:42:32,706 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 14:42:32,707 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 14:42:32,707 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 14:42:32,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 14:42:32,707 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 14:42:32,707 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 14:42:32,708 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 14:42:32,708 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 14:42:32,708 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4fee54ccb193d38705f292ec1df682c5f160e2b5ba09e341cb9a12b4e6b2606 [2021-12-14 14:42:32,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 14:42:32,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 14:42:32,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 14:42:32,967 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 14:42:32,967 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 14:42:32,968 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec9_product21.cil.c [2021-12-14 14:42:33,033 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a4f57865/00f77f3335ca4bbcbd9259b5bb7242bf/FLAG40a12e0ad [2021-12-14 14:42:33,424 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 14:42:33,425 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec9_product21.cil.c [2021-12-14 14:42:33,439 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a4f57865/00f77f3335ca4bbcbd9259b5bb7242bf/FLAG40a12e0ad [2021-12-14 14:42:33,755 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a4f57865/00f77f3335ca4bbcbd9259b5bb7242bf [2021-12-14 14:42:33,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 14:42:33,760 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 14:42:33,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 14:42:33,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 14:42:33,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 14:42:33,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:42:33" (1/1) ... [2021-12-14 14:42:33,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@170b7f8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:42:33, skipping insertion in model container [2021-12-14 14:42:33,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:42:33" (1/1) ... [2021-12-14 14:42:33,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 14:42:33,824 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 14:42:34,065 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] [2021-12-14 14:42:34,212 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 14:42:34,219 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 14:42:34,235 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] [2021-12-14 14:42:34,312 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 14:42:34,337 INFO L208 MainTranslator]: Completed translation [2021-12-14 14:42:34,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:42:34 WrapperNode [2021-12-14 14:42:34,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 14:42:34,338 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 14:42:34,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 14:42:34,338 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 14:42:34,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:42:34" (1/1) ... [2021-12-14 14:42:34,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:42:34" (1/1) ... [2021-12-14 14:42:34,430 INFO L137 Inliner]: procedures = 129, calls = 220, calls flagged for inlining = 58, calls inlined = 55, statements flattened = 1072 [2021-12-14 14:42:34,440 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 14:42:34,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 14:42:34,441 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 14:42:34,441 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 14:42:34,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:42:34" (1/1) ... [2021-12-14 14:42:34,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:42:34" (1/1) ... [2021-12-14 14:42:34,451 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:42:34" (1/1) ... [2021-12-14 14:42:34,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:42:34" (1/1) ... [2021-12-14 14:42:34,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:42:34" (1/1) ... [2021-12-14 14:42:34,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:42:34" (1/1) ... [2021-12-14 14:42:34,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:42:34" (1/1) ... [2021-12-14 14:42:34,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 14:42:34,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 14:42:34,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 14:42:34,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 14:42:34,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:42:34" (1/1) ... [2021-12-14 14:42:34,508 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 14:42:34,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:42:34,525 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 14:42:34,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 14:42:34,552 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-14 14:42:34,553 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-14 14:42:34,553 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-12-14 14:42:34,553 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-12-14 14:42:34,553 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-14 14:42:34,553 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-14 14:42:34,553 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-12-14 14:42:34,553 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-12-14 14:42:34,554 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-14 14:42:34,554 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-14 14:42:34,554 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-14 14:42:34,554 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-14 14:42:34,554 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-14 14:42:34,554 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-14 14:42:34,554 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-12-14 14:42:34,555 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-12-14 14:42:34,555 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-14 14:42:34,555 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-14 14:42:34,555 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-14 14:42:34,555 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-14 14:42:34,555 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-14 14:42:34,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 14:42:34,555 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-14 14:42:34,556 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-14 14:42:34,556 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-14 14:42:34,556 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-14 14:42:34,556 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-14 14:42:34,556 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-14 14:42:34,557 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-14 14:42:34,557 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-14 14:42:34,557 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2021-12-14 14:42:34,557 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2021-12-14 14:42:34,557 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-14 14:42:34,557 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-14 14:42:34,558 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-12-14 14:42:34,558 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-12-14 14:42:34,558 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-14 14:42:34,558 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-14 14:42:34,558 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-14 14:42:34,558 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-14 14:42:34,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 14:42:34,559 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-14 14:42:34,559 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-14 14:42:34,559 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-14 14:42:34,559 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-14 14:42:34,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 14:42:34,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 14:42:34,751 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 14:42:34,752 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 14:42:35,357 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 14:42:35,367 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 14:42:35,367 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-14 14:42:35,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:42:35 BoogieIcfgContainer [2021-12-14 14:42:35,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 14:42:35,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 14:42:35,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 14:42:35,374 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 14:42:35,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:42:33" (1/3) ... [2021-12-14 14:42:35,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff18336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:42:35, skipping insertion in model container [2021-12-14 14:42:35,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:42:34" (2/3) ... [2021-12-14 14:42:35,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff18336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:42:35, skipping insertion in model container [2021-12-14 14:42:35,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:42:35" (3/3) ... [2021-12-14 14:42:35,376 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec9_product21.cil.c [2021-12-14 14:42:35,379 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 14:42:35,380 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 14:42:35,420 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 14:42:35,424 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 14:42:35,425 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 14:42:35,441 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) [2021-12-14 14:42:35,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-14 14:42:35,456 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:42:35,456 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] [2021-12-14 14:42:35,457 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:42:35,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:42:35,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1929475280, now seen corresponding path program 1 times [2021-12-14 14:42:35,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:42:35,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972632489] [2021-12-14 14:42:35,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:42:35,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:42:35,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:35,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:42:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:35,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:42:35,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:35,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:42:35,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:35,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 14:42:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:35,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-14 14:42:35,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:35,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 14:42:35,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:35,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 14:42:35,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:35,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 14:42:35,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:35,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 14:42:35,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:35,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-14 14:42:35,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:35,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 14:42:35,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:35,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 14:42:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:35,846 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-14 14:42:35,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:42:35,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972632489] [2021-12-14 14:42:35,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972632489] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:42:35,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370595020] [2021-12-14 14:42:35,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:42:35,848 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:42:35,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:42:35,850 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 14:42:35,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-14 14:42:36,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:36,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-14 14:42:36,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:42:36,253 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-14 14:42:36,253 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 14:42:36,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370595020] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:42:36,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 14:42:36,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-12-14 14:42:36,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79419257] [2021-12-14 14:42:36,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:42:36,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-14 14:42:36,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:42:36,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-14 14:42:36,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-14 14:42:36,295 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) [2021-12-14 14:42:36,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:42:36,359 INFO L93 Difference]: Finished difference Result 561 states and 850 transitions. [2021-12-14 14:42:36,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-14 14:42:36,363 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 [2021-12-14 14:42:36,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:42:36,380 INFO L225 Difference]: With dead ends: 561 [2021-12-14 14:42:36,381 INFO L226 Difference]: Without dead ends: 370 [2021-12-14 14:42:36,390 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 [2021-12-14 14:42:36,393 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 [2021-12-14 14:42:36,394 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] [2021-12-14 14:42:36,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2021-12-14 14:42:36,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2021-12-14 14:42:36,451 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) [2021-12-14 14:42:36,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 568 transitions. [2021-12-14 14:42:36,457 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 568 transitions. Word has length 98 [2021-12-14 14:42:36,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:42:36,459 INFO L470 AbstractCegarLoop]: Abstraction has 370 states and 568 transitions. [2021-12-14 14:42:36,459 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) [2021-12-14 14:42:36,460 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 568 transitions. [2021-12-14 14:42:36,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-14 14:42:36,464 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:42:36,465 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] [2021-12-14 14:42:36,519 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-14 14:42:36,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-12-14 14:42:36,681 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:42:36,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:42:36,682 INFO L85 PathProgramCache]: Analyzing trace with hash -440096051, now seen corresponding path program 1 times [2021-12-14 14:42:36,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:42:36,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178501279] [2021-12-14 14:42:36,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:42:36,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:42:36,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:36,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:42:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:36,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:42:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:36,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:42:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:36,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 14:42:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:36,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-14 14:42:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:36,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 14:42:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:36,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-14 14:42:36,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:36,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 14:42:36,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:36,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 14:42:36,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:36,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-14 14:42:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:36,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 14:42:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:36,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 14:42:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:36,850 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-14 14:42:36,850 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:42:36,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178501279] [2021-12-14 14:42:36,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178501279] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:42:36,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363416177] [2021-12-14 14:42:36,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:42:36,851 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:42:36,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:42:36,868 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 14:42:36,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-14 14:42:37,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:37,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 1046 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 14:42:37,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:42:37,277 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-14 14:42:37,277 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 14:42:37,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363416177] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:42:37,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 14:42:37,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-14 14:42:37,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102926903] [2021-12-14 14:42:37,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:42:37,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 14:42:37,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:42:37,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 14:42:37,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-14 14:42:37,285 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) [2021-12-14 14:42:37,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:42:37,324 INFO L93 Difference]: Finished difference Result 551 states and 828 transitions. [2021-12-14 14:42:37,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 14:42:37,325 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 [2021-12-14 14:42:37,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:42:37,327 INFO L225 Difference]: With dead ends: 551 [2021-12-14 14:42:37,327 INFO L226 Difference]: Without dead ends: 373 [2021-12-14 14:42:37,328 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 [2021-12-14 14:42:37,329 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 [2021-12-14 14:42:37,329 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] [2021-12-14 14:42:37,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2021-12-14 14:42:37,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 372. [2021-12-14 14:42:37,344 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) [2021-12-14 14:42:37,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 570 transitions. [2021-12-14 14:42:37,346 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 570 transitions. Word has length 99 [2021-12-14 14:42:37,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:42:37,346 INFO L470 AbstractCegarLoop]: Abstraction has 372 states and 570 transitions. [2021-12-14 14:42:37,347 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) [2021-12-14 14:42:37,347 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 570 transitions. [2021-12-14 14:42:37,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-14 14:42:37,348 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:42:37,349 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] [2021-12-14 14:42:37,378 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-14 14:42:37,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-12-14 14:42:37,566 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:42:37,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:42:37,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1969662684, now seen corresponding path program 1 times [2021-12-14 14:42:37,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:42:37,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460743413] [2021-12-14 14:42:37,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:42:37,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:42:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:37,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:42:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:37,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:42:37,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:37,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:42:37,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:37,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 14:42:37,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:37,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-14 14:42:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:37,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 14:42:37,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:37,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-14 14:42:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:37,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-14 14:42:37,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:37,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 14:42:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:37,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 14:42:37,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:37,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 14:42:37,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:37,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-14 14:42:37,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:37,677 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-14 14:42:37,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:42:37,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460743413] [2021-12-14 14:42:37,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460743413] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:42:37,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829245934] [2021-12-14 14:42:37,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:42:37,679 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:42:37,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:42:37,680 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 14:42:37,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-14 14:42:37,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:37,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 1060 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-14 14:42:37,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:42:38,009 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-14 14:42:38,009 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 14:42:38,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829245934] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:42:38,009 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 14:42:38,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-14 14:42:38,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020436364] [2021-12-14 14:42:38,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:42:38,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 14:42:38,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:42:38,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 14:42:38,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-14 14:42:38,013 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) [2021-12-14 14:42:38,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:42:38,056 INFO L93 Difference]: Finished difference Result 792 states and 1232 transitions. [2021-12-14 14:42:38,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 14:42:38,057 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 [2021-12-14 14:42:38,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:42:38,062 INFO L225 Difference]: With dead ends: 792 [2021-12-14 14:42:38,062 INFO L226 Difference]: Without dead ends: 447 [2021-12-14 14:42:38,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-14 14:42:38,065 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 [2021-12-14 14:42:38,067 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] [2021-12-14 14:42:38,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2021-12-14 14:42:38,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 439. [2021-12-14 14:42:38,109 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) [2021-12-14 14:42:38,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 687 transitions. [2021-12-14 14:42:38,112 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 687 transitions. Word has length 105 [2021-12-14 14:42:38,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:42:38,113 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 687 transitions. [2021-12-14 14:42:38,115 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) [2021-12-14 14:42:38,115 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 687 transitions. [2021-12-14 14:42:38,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-14 14:42:38,118 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:42:38,118 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] [2021-12-14 14:42:38,137 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-14 14:42:38,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:42:38,331 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:42:38,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:42:38,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1733979839, now seen corresponding path program 1 times [2021-12-14 14:42:38,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:42:38,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801165009] [2021-12-14 14:42:38,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:42:38,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:42:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:38,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:42:38,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:38,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:42:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:38,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:42:38,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:38,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 14:42:38,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:38,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-14 14:42:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:38,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 14:42:38,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:38,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-14 14:42:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:38,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-14 14:42:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:38,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 14:42:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:38,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 14:42:38,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:38,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 14:42:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:38,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 14:42:38,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:38,433 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-14 14:42:38,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:42:38,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801165009] [2021-12-14 14:42:38,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801165009] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:42:38,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319208915] [2021-12-14 14:42:38,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:42:38,436 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:42:38,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:42:38,437 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 14:42:38,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-14 14:42:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:38,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 1067 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-14 14:42:38,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:42:38,816 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-14 14:42:38,816 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 14:42:38,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319208915] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:42:38,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 14:42:38,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-14 14:42:38,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708332993] [2021-12-14 14:42:38,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:42:38,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 14:42:38,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:42:38,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 14:42:38,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-14 14:42:38,818 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) [2021-12-14 14:42:38,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:42:38,864 INFO L93 Difference]: Finished difference Result 869 states and 1364 transitions. [2021-12-14 14:42:38,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 14:42:38,865 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 [2021-12-14 14:42:38,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:42:38,867 INFO L225 Difference]: With dead ends: 869 [2021-12-14 14:42:38,867 INFO L226 Difference]: Without dead ends: 441 [2021-12-14 14:42:38,869 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 [2021-12-14 14:42:38,869 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 [2021-12-14 14:42:38,869 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] [2021-12-14 14:42:38,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2021-12-14 14:42:38,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2021-12-14 14:42:38,880 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) [2021-12-14 14:42:38,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 690 transitions. [2021-12-14 14:42:38,882 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 690 transitions. Word has length 106 [2021-12-14 14:42:38,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:42:38,882 INFO L470 AbstractCegarLoop]: Abstraction has 441 states and 690 transitions. [2021-12-14 14:42:38,883 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) [2021-12-14 14:42:38,883 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 690 transitions. [2021-12-14 14:42:38,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-14 14:42:38,884 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:42:38,884 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] [2021-12-14 14:42:38,907 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-14 14:42:39,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:42:39,091 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:42:39,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:42:39,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1463820644, now seen corresponding path program 1 times [2021-12-14 14:42:39,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:42:39,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965324420] [2021-12-14 14:42:39,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:42:39,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:42:39,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:39,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:42:39,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:39,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:42:39,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:39,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:42:39,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:39,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:42:39,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:39,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-14 14:42:39,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:39,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-14 14:42:39,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:39,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 14:42:39,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:39,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 14:42:39,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:39,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-14 14:42:39,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:39,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-14 14:42:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:39,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 14:42:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:39,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-14 14:42:39,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:39,222 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-14 14:42:39,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:42:39,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965324420] [2021-12-14 14:42:39,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965324420] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:42:39,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708699783] [2021-12-14 14:42:39,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:42:39,222 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:42:39,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:42:39,223 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 14:42:39,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-14 14:42:39,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:39,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 1068 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-14 14:42:39,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:42:39,575 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-14 14:42:39,575 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 14:42:39,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708699783] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:42:39,576 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 14:42:39,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-14 14:42:39,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51291666] [2021-12-14 14:42:39,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:42:39,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 14:42:39,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:42:39,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 14:42:39,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-12-14 14:42:39,578 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) [2021-12-14 14:42:39,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:42:39,628 INFO L93 Difference]: Finished difference Result 871 states and 1369 transitions. [2021-12-14 14:42:39,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 14:42:39,628 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 [2021-12-14 14:42:39,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:42:39,631 INFO L225 Difference]: With dead ends: 871 [2021-12-14 14:42:39,631 INFO L226 Difference]: Without dead ends: 443 [2021-12-14 14:42:39,632 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 [2021-12-14 14:42:39,633 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 [2021-12-14 14:42:39,633 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] [2021-12-14 14:42:39,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2021-12-14 14:42:39,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2021-12-14 14:42:39,645 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) [2021-12-14 14:42:39,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 696 transitions. [2021-12-14 14:42:39,647 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 696 transitions. Word has length 107 [2021-12-14 14:42:39,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:42:39,648 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 696 transitions. [2021-12-14 14:42:39,648 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) [2021-12-14 14:42:39,648 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 696 transitions. [2021-12-14 14:42:39,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-14 14:42:39,650 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:42:39,650 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] [2021-12-14 14:42:39,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-14 14:42:39,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:42:39,868 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:42:39,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:42:39,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1036991374, now seen corresponding path program 1 times [2021-12-14 14:42:39,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:42:39,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046890993] [2021-12-14 14:42:39,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:42:39,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:42:39,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:39,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:42:39,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:39,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:42:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:39,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:42:39,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:39,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:42:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:39,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:42:39,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:39,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 14:42:39,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:39,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-14 14:42:39,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:39,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 14:42:39,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:39,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-14 14:42:39,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:39,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 14:42:39,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:39,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 14:42:39,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:39,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-14 14:42:39,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:39,946 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-14 14:42:39,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:42:39,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046890993] [2021-12-14 14:42:39,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046890993] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:42:39,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:42:39,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-14 14:42:39,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596293247] [2021-12-14 14:42:39,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:42:39,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 14:42:39,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:42:39,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 14:42:39,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-14 14:42:39,948 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) [2021-12-14 14:42:41,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:42:41,383 INFO L93 Difference]: Finished difference Result 1030 states and 1635 transitions. [2021-12-14 14:42:41,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-14 14:42:41,384 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 [2021-12-14 14:42:41,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:42:41,388 INFO L225 Difference]: With dead ends: 1030 [2021-12-14 14:42:41,388 INFO L226 Difference]: Without dead ends: 610 [2021-12-14 14:42:41,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-14 14:42:41,391 INFO L933 BasicCegarLoop]: 687 mSDtfsCounter, 1363 mSDsluCounter, 1251 mSDsCounter, 0 mSdLazyCounter, 2095 mSolverCounterSat, 499 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1384 SdHoareTripleChecker+Valid, 1938 SdHoareTripleChecker+Invalid, 2594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 499 IncrementalHoareTripleChecker+Valid, 2095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-14 14:42:41,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1384 Valid, 1938 Invalid, 2594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [499 Valid, 2095 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-14 14:42:41,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2021-12-14 14:42:41,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 443. [2021-12-14 14:42:41,439 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) [2021-12-14 14:42:41,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 695 transitions. [2021-12-14 14:42:41,441 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 695 transitions. Word has length 108 [2021-12-14 14:42:41,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:42:41,441 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 695 transitions. [2021-12-14 14:42:41,442 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) [2021-12-14 14:42:41,442 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 695 transitions. [2021-12-14 14:42:41,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-14 14:42:41,443 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:42:41,443 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] [2021-12-14 14:42:41,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 14:42:41,444 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:42:41,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:42:41,444 INFO L85 PathProgramCache]: Analyzing trace with hash -2043334067, now seen corresponding path program 2 times [2021-12-14 14:42:41,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:42:41,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431586094] [2021-12-14 14:42:41,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:42:41,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:42:41,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:41,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:42:41,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:41,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:42:41,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:41,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:42:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:41,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:42:41,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:41,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:42:41,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:41,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-14 14:42:41,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:41,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 14:42:41,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:41,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-14 14:42:41,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:41,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-14 14:42:41,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:41,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-14 14:42:41,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:41,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-14 14:42:41,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:41,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-14 14:42:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:41,521 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-14 14:42:41,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:42:41,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431586094] [2021-12-14 14:42:41,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431586094] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:42:41,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:42:41,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-14 14:42:41,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125084975] [2021-12-14 14:42:41,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:42:41,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 14:42:41,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:42:41,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 14:42:41,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-14 14:42:41,523 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) [2021-12-14 14:42:42,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:42:42,845 INFO L93 Difference]: Finished difference Result 1032 states and 1638 transitions. [2021-12-14 14:42:42,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-14 14:42:42,845 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 [2021-12-14 14:42:42,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:42:42,849 INFO L225 Difference]: With dead ends: 1032 [2021-12-14 14:42:42,850 INFO L226 Difference]: Without dead ends: 612 [2021-12-14 14:42:42,851 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 [2021-12-14 14:42:42,851 INFO L933 BasicCegarLoop]: 685 mSDtfsCounter, 1359 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 2113 mSolverCounterSat, 494 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 1931 SdHoareTripleChecker+Invalid, 2607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 494 IncrementalHoareTripleChecker+Valid, 2113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-14 14:42:42,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1380 Valid, 1931 Invalid, 2607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [494 Valid, 2113 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-14 14:42:42,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2021-12-14 14:42:42,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 445. [2021-12-14 14:42:42,869 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) [2021-12-14 14:42:42,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 698 transitions. [2021-12-14 14:42:42,871 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 698 transitions. Word has length 109 [2021-12-14 14:42:42,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:42:42,871 INFO L470 AbstractCegarLoop]: Abstraction has 445 states and 698 transitions. [2021-12-14 14:42:42,871 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) [2021-12-14 14:42:42,871 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 698 transitions. [2021-12-14 14:42:42,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-14 14:42:42,873 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:42:42,873 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] [2021-12-14 14:42:42,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-14 14:42:42,873 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:42:42,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:42:42,874 INFO L85 PathProgramCache]: Analyzing trace with hash 61137735, now seen corresponding path program 1 times [2021-12-14 14:42:42,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:42:42,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848081530] [2021-12-14 14:42:42,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:42:42,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:42:42,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:42,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:42:42,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:42,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:42:42,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:42,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:42:42,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:42,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:42:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:42,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:42:42,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:42,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:42:42,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:42,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-14 14:42:42,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:42,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-14 14:42:42,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:42,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 14:42:42,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:42,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 14:42:42,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:42,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-14 14:42:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:42,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 14:42:42,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:42,985 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-14 14:42:42,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:42:42,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848081530] [2021-12-14 14:42:42,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848081530] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:42:42,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:42:42,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-14 14:42:42,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298373871] [2021-12-14 14:42:42,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:42:42,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 14:42:42,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:42:42,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 14:42:42,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-14 14:42:42,988 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) [2021-12-14 14:42:44,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:42:44,454 INFO L93 Difference]: Finished difference Result 1032 states and 1637 transitions. [2021-12-14 14:42:44,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-14 14:42:44,455 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 [2021-12-14 14:42:44,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:42:44,458 INFO L225 Difference]: With dead ends: 1032 [2021-12-14 14:42:44,458 INFO L226 Difference]: Without dead ends: 612 [2021-12-14 14:42:44,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2021-12-14 14:42:44,460 INFO L933 BasicCegarLoop]: 685 mSDtfsCounter, 1362 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 2090 mSolverCounterSat, 493 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1383 SdHoareTripleChecker+Valid, 1933 SdHoareTripleChecker+Invalid, 2583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 493 IncrementalHoareTripleChecker+Valid, 2090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-14 14:42:44,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1383 Valid, 1933 Invalid, 2583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [493 Valid, 2090 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-14 14:42:44,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2021-12-14 14:42:44,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 445. [2021-12-14 14:42:44,481 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) [2021-12-14 14:42:44,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 698 transitions. [2021-12-14 14:42:44,483 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 698 transitions. Word has length 110 [2021-12-14 14:42:44,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:42:44,484 INFO L470 AbstractCegarLoop]: Abstraction has 445 states and 698 transitions. [2021-12-14 14:42:44,484 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) [2021-12-14 14:42:44,484 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 698 transitions. [2021-12-14 14:42:44,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-14 14:42:44,485 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:42:44,485 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] [2021-12-14 14:42:44,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-14 14:42:44,486 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:42:44,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:42:44,486 INFO L85 PathProgramCache]: Analyzing trace with hash -826085111, now seen corresponding path program 1 times [2021-12-14 14:42:44,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:42:44,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905621] [2021-12-14 14:42:44,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:42:44,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:42:44,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:44,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:42:44,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:44,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:42:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:44,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:42:44,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:44,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:42:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:44,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:42:44,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:44,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:42:44,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:44,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-14 14:42:44,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:44,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-14 14:42:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:44,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 14:42:44,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:44,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 14:42:44,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:44,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-14 14:42:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:44,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 14:42:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:44,607 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-14 14:42:44,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:42:44,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905621] [2021-12-14 14:42:44,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905621] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:42:44,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:42:44,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-14 14:42:44,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636202683] [2021-12-14 14:42:44,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:42:44,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-14 14:42:44,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:42:44,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-14 14:42:44,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-14 14:42:44,609 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) [2021-12-14 14:42:46,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:42:46,500 INFO L93 Difference]: Finished difference Result 1030 states and 1632 transitions. [2021-12-14 14:42:46,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-14 14:42:46,501 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 [2021-12-14 14:42:46,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:42:46,504 INFO L225 Difference]: With dead ends: 1030 [2021-12-14 14:42:46,504 INFO L226 Difference]: Without dead ends: 612 [2021-12-14 14:42:46,506 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 [2021-12-14 14:42:46,506 INFO L933 BasicCegarLoop]: 673 mSDtfsCounter, 1497 mSDsluCounter, 1836 mSDsCounter, 0 mSdLazyCounter, 3758 mSolverCounterSat, 562 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.6s IncrementalHoareTripleChecker+Time [2021-12-14 14:42:46,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1497 Valid, 2509 Invalid, 4320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [562 Valid, 3758 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-14 14:42:46,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2021-12-14 14:42:46,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 445. [2021-12-14 14:42:46,538 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) [2021-12-14 14:42:46,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 697 transitions. [2021-12-14 14:42:46,539 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 697 transitions. Word has length 110 [2021-12-14 14:42:46,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:42:46,540 INFO L470 AbstractCegarLoop]: Abstraction has 445 states and 697 transitions. [2021-12-14 14:42:46,540 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) [2021-12-14 14:42:46,540 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 697 transitions. [2021-12-14 14:42:46,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-14 14:42:46,541 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:42:46,541 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] [2021-12-14 14:42:46,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-14 14:42:46,542 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:42:46,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:42:46,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1095751515, now seen corresponding path program 2 times [2021-12-14 14:42:46,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:42:46,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914763901] [2021-12-14 14:42:46,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:42:46,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:42:46,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:46,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:42:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:46,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:42:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:46,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:42:46,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:46,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:42:46,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:46,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:42:46,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:46,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:42:46,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:46,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-14 14:42:46,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:46,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-14 14:42:46,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:46,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 14:42:46,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:46,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 14:42:46,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:46,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-14 14:42:46,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:46,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-14 14:42:46,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:46,651 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-14 14:42:46,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:42:46,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914763901] [2021-12-14 14:42:46,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914763901] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:42:46,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:42:46,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-14 14:42:46,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490777726] [2021-12-14 14:42:46,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:42:46,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-14 14:42:46,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:42:46,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-14 14:42:46,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-14 14:42:46,653 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) [2021-12-14 14:42:48,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:42:48,507 INFO L93 Difference]: Finished difference Result 1032 states and 1638 transitions. [2021-12-14 14:42:48,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-14 14:42:48,508 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 [2021-12-14 14:42:48,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:42:48,511 INFO L225 Difference]: With dead ends: 1032 [2021-12-14 14:42:48,511 INFO L226 Difference]: Without dead ends: 614 [2021-12-14 14:42:48,513 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 [2021-12-14 14:42:48,513 INFO L933 BasicCegarLoop]: 670 mSDtfsCounter, 1494 mSDsluCounter, 1825 mSDsCounter, 0 mSdLazyCounter, 3783 mSolverCounterSat, 552 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 2495 SdHoareTripleChecker+Invalid, 4335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 552 IncrementalHoareTripleChecker+Valid, 3783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-14 14:42:48,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1494 Valid, 2495 Invalid, 4335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [552 Valid, 3783 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-14 14:42:48,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2021-12-14 14:42:48,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 447. [2021-12-14 14:42:48,530 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) [2021-12-14 14:42:48,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 703 transitions. [2021-12-14 14:42:48,531 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 703 transitions. Word has length 111 [2021-12-14 14:42:48,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:42:48,531 INFO L470 AbstractCegarLoop]: Abstraction has 447 states and 703 transitions. [2021-12-14 14:42:48,532 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) [2021-12-14 14:42:48,532 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 703 transitions. [2021-12-14 14:42:48,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-14 14:42:48,533 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:42:48,533 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] [2021-12-14 14:42:48,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-14 14:42:48,534 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:42:48,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:42:48,534 INFO L85 PathProgramCache]: Analyzing trace with hash -628108700, now seen corresponding path program 1 times [2021-12-14 14:42:48,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:42:48,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826358117] [2021-12-14 14:42:48,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:42:48,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:42:48,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:48,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:42:48,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:48,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:42:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:48,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:42:48,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:48,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:42:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:48,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:42:48,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:48,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:42:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:48,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 14:42:48,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:48,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 14:42:48,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:48,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-14 14:42:48,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:48,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 14:42:48,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:48,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-14 14:42:48,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:48,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 14:42:48,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:48,628 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-14 14:42:48,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:42:48,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826358117] [2021-12-14 14:42:48,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826358117] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 14:42:48,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665679715] [2021-12-14 14:42:48,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:42:48,629 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:42:48,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 14:42:48,630 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 14:42:48,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-14 14:42:48,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:48,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 1073 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-14 14:42:48,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 14:42:48,954 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-14 14:42:48,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 14:42:49,124 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-14 14:42:49,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665679715] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 14:42:49,124 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 14:42:49,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2021-12-14 14:42:49,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851236228] [2021-12-14 14:42:49,125 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 14:42:49,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-14 14:42:49,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:42:49,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-14 14:42:49,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-14 14:42:49,126 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) [2021-12-14 14:42:50,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:42:50,551 INFO L93 Difference]: Finished difference Result 1234 states and 2031 transitions. [2021-12-14 14:42:50,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-14 14:42:50,552 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 [2021-12-14 14:42:50,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:42:50,557 INFO L225 Difference]: With dead ends: 1234 [2021-12-14 14:42:50,557 INFO L226 Difference]: Without dead ends: 1056 [2021-12-14 14:42:50,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2021-12-14 14:42:50,558 INFO L933 BasicCegarLoop]: 784 mSDtfsCounter, 1691 mSDsluCounter, 1646 mSDsCounter, 0 mSdLazyCounter, 1902 mSolverCounterSat, 695 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1748 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 2597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 695 IncrementalHoareTripleChecker+Valid, 1902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-14 14:42:50,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1748 Valid, 2430 Invalid, 2597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [695 Valid, 1902 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-14 14:42:50,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2021-12-14 14:42:50,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 865. [2021-12-14 14:42:50,585 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) [2021-12-14 14:42:50,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1444 transitions. [2021-12-14 14:42:50,587 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1444 transitions. Word has length 112 [2021-12-14 14:42:50,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:42:50,588 INFO L470 AbstractCegarLoop]: Abstraction has 865 states and 1444 transitions. [2021-12-14 14:42:50,588 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) [2021-12-14 14:42:50,588 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1444 transitions. [2021-12-14 14:42:50,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-14 14:42:50,591 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:42:50,591 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] [2021-12-14 14:42:50,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-14 14:42:50,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 14:42:50,807 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:42:50,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:42:50,808 INFO L85 PathProgramCache]: Analyzing trace with hash 394224551, now seen corresponding path program 1 times [2021-12-14 14:42:50,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:42:50,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575107528] [2021-12-14 14:42:50,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:42:50,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:42:50,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:50,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:42:50,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:50,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:42:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:50,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:42:50,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:50,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:42:50,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:50,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:42:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:50,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:42:50,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:50,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 14:42:50,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:50,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-14 14:42:50,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:50,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-14 14:42:50,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:50,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 14:42:50,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:50,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-14 14:42:50,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:50,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 14:42:50,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:50,868 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-14 14:42:50,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:42:50,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575107528] [2021-12-14 14:42:50,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575107528] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:42:50,869 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:42:50,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:42:50,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816812400] [2021-12-14 14:42:50,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:42:50,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:42:50,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:42:50,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:42:50,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:42:50,870 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) [2021-12-14 14:42:52,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:42:52,005 INFO L93 Difference]: Finished difference Result 2252 states and 3832 transitions. [2021-12-14 14:42:52,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:42:52,005 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 [2021-12-14 14:42:52,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:42:52,012 INFO L225 Difference]: With dead ends: 2252 [2021-12-14 14:42:52,012 INFO L226 Difference]: Without dead ends: 1455 [2021-12-14 14:42:52,015 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 [2021-12-14 14:42:52,015 INFO L933 BasicCegarLoop]: 730 mSDtfsCounter, 1355 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 562 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1373 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 1677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 562 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-14 14:42:52,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1373 Valid, 1661 Invalid, 1677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [562 Valid, 1115 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-14 14:42:52,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2021-12-14 14:42:52,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1280. [2021-12-14 14:42:52,080 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) [2021-12-14 14:42:52,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 2172 transitions. [2021-12-14 14:42:52,087 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 2172 transitions. Word has length 118 [2021-12-14 14:42:52,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:42:52,088 INFO L470 AbstractCegarLoop]: Abstraction has 1280 states and 2172 transitions. [2021-12-14 14:42:52,088 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) [2021-12-14 14:42:52,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 2172 transitions. [2021-12-14 14:42:52,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-14 14:42:52,092 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:42:52,093 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] [2021-12-14 14:42:52,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-14 14:42:52,093 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:42:52,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:42:52,093 INFO L85 PathProgramCache]: Analyzing trace with hash 881875999, now seen corresponding path program 1 times [2021-12-14 14:42:52,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:42:52,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492538845] [2021-12-14 14:42:52,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:42:52,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:42:52,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:52,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:42:52,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:52,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:42:52,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:52,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:42:52,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:52,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:42:52,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:52,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:42:52,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:52,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:42:52,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:52,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 14:42:52,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:52,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 14:42:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:52,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 14:42:52,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:52,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 14:42:52,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:52,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-14 14:42:52,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:52,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-14 14:42:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:52,180 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-14 14:42:52,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:42:52,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492538845] [2021-12-14 14:42:52,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492538845] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:42:52,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:42:52,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:42:52,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292149384] [2021-12-14 14:42:52,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:42:52,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:42:52,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:42:52,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:42:52,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:42:52,182 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) [2021-12-14 14:42:53,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:42:53,268 INFO L93 Difference]: Finished difference Result 3266 states and 5610 transitions. [2021-12-14 14:42:53,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:42:53,269 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 [2021-12-14 14:42:53,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:42:53,276 INFO L225 Difference]: With dead ends: 3266 [2021-12-14 14:42:53,276 INFO L226 Difference]: Without dead ends: 2107 [2021-12-14 14:42:53,279 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 [2021-12-14 14:42:53,279 INFO L933 BasicCegarLoop]: 712 mSDtfsCounter, 1352 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 1094 mSolverCounterSat, 569 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.9s IncrementalHoareTripleChecker+Time [2021-12-14 14:42:53,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1370 Valid, 1590 Invalid, 1663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [569 Valid, 1094 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-14 14:42:53,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2107 states. [2021-12-14 14:42:53,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2107 to 1932. [2021-12-14 14:42:53,335 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) [2021-12-14 14:42:53,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1932 states to 1932 states and 3297 transitions. [2021-12-14 14:42:53,339 INFO L78 Accepts]: Start accepts. Automaton has 1932 states and 3297 transitions. Word has length 119 [2021-12-14 14:42:53,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:42:53,339 INFO L470 AbstractCegarLoop]: Abstraction has 1932 states and 3297 transitions. [2021-12-14 14:42:53,339 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) [2021-12-14 14:42:53,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1932 states and 3297 transitions. [2021-12-14 14:42:53,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-14 14:42:53,345 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:42:53,345 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] [2021-12-14 14:42:53,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-14 14:42:53,346 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:42:53,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:42:53,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1047346939, now seen corresponding path program 1 times [2021-12-14 14:42:53,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:42:53,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882760915] [2021-12-14 14:42:53,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:42:53,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:42:53,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:53,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:42:53,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:53,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:42:53,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:53,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:42:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:53,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:42:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:53,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:42:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:53,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:42:53,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:53,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 14:42:53,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:53,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 14:42:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:53,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 14:42:53,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:53,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-14 14:42:53,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:53,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-14 14:42:53,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:53,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-14 14:42:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:53,411 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-14 14:42:53,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:42:53,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882760915] [2021-12-14 14:42:53,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882760915] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:42:53,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:42:53,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:42:53,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970913304] [2021-12-14 14:42:53,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:42:53,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:42:53,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:42:53,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:42:53,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:42:53,412 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) [2021-12-14 14:42:54,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:42:54,515 INFO L93 Difference]: Finished difference Result 4796 states and 8312 transitions. [2021-12-14 14:42:54,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:42:54,515 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 [2021-12-14 14:42:54,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:42:54,528 INFO L225 Difference]: With dead ends: 4796 [2021-12-14 14:42:54,528 INFO L226 Difference]: Without dead ends: 3110 [2021-12-14 14:42:54,531 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 [2021-12-14 14:42:54,531 INFO L933 BasicCegarLoop]: 711 mSDtfsCounter, 1353 mSDsluCounter, 876 mSDsCounter, 0 mSdLazyCounter, 1088 mSolverCounterSat, 560 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1372 SdHoareTripleChecker+Valid, 1587 SdHoareTripleChecker+Invalid, 1648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 560 IncrementalHoareTripleChecker+Valid, 1088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-14 14:42:54,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1372 Valid, 1587 Invalid, 1648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [560 Valid, 1088 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-14 14:42:54,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3110 states. [2021-12-14 14:42:54,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3110 to 2935. [2021-12-14 14:42:54,618 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) [2021-12-14 14:42:54,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2935 states to 2935 states and 5039 transitions. [2021-12-14 14:42:54,625 INFO L78 Accepts]: Start accepts. Automaton has 2935 states and 5039 transitions. Word has length 120 [2021-12-14 14:42:54,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:42:54,625 INFO L470 AbstractCegarLoop]: Abstraction has 2935 states and 5039 transitions. [2021-12-14 14:42:54,625 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) [2021-12-14 14:42:54,625 INFO L276 IsEmpty]: Start isEmpty. Operand 2935 states and 5039 transitions. [2021-12-14 14:42:54,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-14 14:42:54,633 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:42:54,633 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] [2021-12-14 14:42:54,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-14 14:42:54,633 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:42:54,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:42:54,634 INFO L85 PathProgramCache]: Analyzing trace with hash 792293982, now seen corresponding path program 1 times [2021-12-14 14:42:54,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:42:54,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876284665] [2021-12-14 14:42:54,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:42:54,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:42:54,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:54,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:42:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:54,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:42:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:54,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:42:54,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:54,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:42:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:54,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:42:54,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:54,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:42:54,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:54,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-14 14:42:54,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:54,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-14 14:42:54,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:54,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 14:42:54,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:54,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 14:42:54,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:54,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 14:42:54,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:54,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 14:42:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:54,713 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-14 14:42:54,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:42:54,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876284665] [2021-12-14 14:42:54,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876284665] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:42:54,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:42:54,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:42:54,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955610565] [2021-12-14 14:42:54,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:42:54,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:42:54,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:42:54,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:42:54,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:42:54,715 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) [2021-12-14 14:42:55,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:42:55,910 INFO L93 Difference]: Finished difference Result 7220 states and 12601 transitions. [2021-12-14 14:42:55,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:42:55,910 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 [2021-12-14 14:42:55,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:42:55,927 INFO L225 Difference]: With dead ends: 7220 [2021-12-14 14:42:55,928 INFO L226 Difference]: Without dead ends: 4735 [2021-12-14 14:42:55,932 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 [2021-12-14 14:42:55,933 INFO L933 BasicCegarLoop]: 716 mSDtfsCounter, 1347 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1365 SdHoareTripleChecker+Valid, 1599 SdHoareTripleChecker+Invalid, 1652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 1102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-14 14:42:55,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1365 Valid, 1599 Invalid, 1652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 1102 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-14 14:42:55,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4735 states. [2021-12-14 14:42:56,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4735 to 4560. [2021-12-14 14:42:56,067 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) [2021-12-14 14:42:56,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4560 states to 4560 states and 7856 transitions. [2021-12-14 14:42:56,078 INFO L78 Accepts]: Start accepts. Automaton has 4560 states and 7856 transitions. Word has length 121 [2021-12-14 14:42:56,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:42:56,078 INFO L470 AbstractCegarLoop]: Abstraction has 4560 states and 7856 transitions. [2021-12-14 14:42:56,079 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) [2021-12-14 14:42:56,079 INFO L276 IsEmpty]: Start isEmpty. Operand 4560 states and 7856 transitions. [2021-12-14 14:42:56,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-14 14:42:56,107 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:42:56,107 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] [2021-12-14 14:42:56,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-14 14:42:56,107 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:42:56,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:42:56,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1500097655, now seen corresponding path program 1 times [2021-12-14 14:42:56,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:42:56,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458420482] [2021-12-14 14:42:56,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:42:56,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:42:56,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:56,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:42:56,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:56,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:42:56,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:56,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:42:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:56,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:42:56,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:56,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:42:56,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:56,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:42:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:56,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-14 14:42:56,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:56,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 14:42:56,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:56,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-14 14:42:56,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:56,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-14 14:42:56,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:56,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-14 14:42:56,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:56,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 14:42:56,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:56,172 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-14 14:42:56,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:42:56,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458420482] [2021-12-14 14:42:56,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458420482] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:42:56,172 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:42:56,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:42:56,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841535317] [2021-12-14 14:42:56,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:42:56,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:42:56,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:42:56,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:42:56,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:42:56,174 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) [2021-12-14 14:42:57,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:42:57,330 INFO L93 Difference]: Finished difference Result 11266 states and 19761 transitions. [2021-12-14 14:42:57,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:42:57,331 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 [2021-12-14 14:42:57,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:42:57,359 INFO L225 Difference]: With dead ends: 11266 [2021-12-14 14:42:57,360 INFO L226 Difference]: Without dead ends: 7468 [2021-12-14 14:42:57,370 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 [2021-12-14 14:42:57,371 INFO L933 BasicCegarLoop]: 727 mSDtfsCounter, 1346 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 1110 mSolverCounterSat, 562 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1364 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 1672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 562 IncrementalHoareTripleChecker+Valid, 1110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-14 14:42:57,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1364 Valid, 1643 Invalid, 1672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [562 Valid, 1110 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-14 14:42:57,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7468 states. [2021-12-14 14:42:57,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7468 to 7293. [2021-12-14 14:42:57,636 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) [2021-12-14 14:42:57,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7293 states to 7293 states and 12591 transitions. [2021-12-14 14:42:57,653 INFO L78 Accepts]: Start accepts. Automaton has 7293 states and 12591 transitions. Word has length 122 [2021-12-14 14:42:57,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:42:57,653 INFO L470 AbstractCegarLoop]: Abstraction has 7293 states and 12591 transitions. [2021-12-14 14:42:57,654 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) [2021-12-14 14:42:57,654 INFO L276 IsEmpty]: Start isEmpty. Operand 7293 states and 12591 transitions. [2021-12-14 14:42:57,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-14 14:42:57,666 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:42:57,666 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] [2021-12-14 14:42:57,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-14 14:42:57,667 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:42:57,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:42:57,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1030468570, now seen corresponding path program 1 times [2021-12-14 14:42:57,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:42:57,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651396028] [2021-12-14 14:42:57,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:42:57,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:42:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:57,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:42:57,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:57,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:42:57,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:57,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:42:57,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:57,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:42:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:57,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:42:57,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:57,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:42:57,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:57,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-14 14:42:57,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:57,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 14:42:57,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:57,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-14 14:42:57,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:57,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-14 14:42:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:57,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-14 14:42:57,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:57,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-14 14:42:57,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:57,770 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-14 14:42:57,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:42:57,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651396028] [2021-12-14 14:42:57,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651396028] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:42:57,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:42:57,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:42:57,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014510832] [2021-12-14 14:42:57,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:42:57,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:42:57,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:42:57,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:42:57,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:42:57,772 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) [2021-12-14 14:42:59,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:42:59,068 INFO L93 Difference]: Finished difference Result 18601 states and 32645 transitions. [2021-12-14 14:42:59,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:42:59,068 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 [2021-12-14 14:42:59,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:42:59,105 INFO L225 Difference]: With dead ends: 18601 [2021-12-14 14:42:59,106 INFO L226 Difference]: Without dead ends: 12447 [2021-12-14 14:42:59,144 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 [2021-12-14 14:42:59,145 INFO L933 BasicCegarLoop]: 724 mSDtfsCounter, 1344 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 560 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1362 SdHoareTripleChecker+Valid, 1630 SdHoareTripleChecker+Invalid, 1669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 560 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-14 14:42:59,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1362 Valid, 1630 Invalid, 1669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [560 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-14 14:42:59,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12447 states. [2021-12-14 14:42:59,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12447 to 12272. [2021-12-14 14:42:59,553 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) [2021-12-14 14:42:59,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12272 states to 12272 states and 21203 transitions. [2021-12-14 14:42:59,583 INFO L78 Accepts]: Start accepts. Automaton has 12272 states and 21203 transitions. Word has length 123 [2021-12-14 14:42:59,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:42:59,584 INFO L470 AbstractCegarLoop]: Abstraction has 12272 states and 21203 transitions. [2021-12-14 14:42:59,584 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) [2021-12-14 14:42:59,584 INFO L276 IsEmpty]: Start isEmpty. Operand 12272 states and 21203 transitions. [2021-12-14 14:42:59,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-14 14:42:59,601 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:42:59,601 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] [2021-12-14 14:42:59,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-14 14:42:59,601 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:42:59,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:42:59,602 INFO L85 PathProgramCache]: Analyzing trace with hash -568781541, now seen corresponding path program 1 times [2021-12-14 14:42:59,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:42:59,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059926704] [2021-12-14 14:42:59,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:42:59,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:42:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:59,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:42:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:59,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:42:59,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:59,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:42:59,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:59,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:42:59,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:59,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:42:59,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:59,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:42:59,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:59,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 14:42:59,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:59,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 14:42:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:59,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-14 14:42:59,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:59,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-14 14:42:59,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:59,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-14 14:42:59,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:59,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-14 14:42:59,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:42:59,663 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-14 14:42:59,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:42:59,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059926704] [2021-12-14 14:42:59,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059926704] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:42:59,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:42:59,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:42:59,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038245297] [2021-12-14 14:42:59,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:42:59,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:42:59,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:42:59,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:42:59,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:42:59,665 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) [2021-12-14 14:43:01,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:43:01,161 INFO L93 Difference]: Finished difference Result 29559 states and 51610 transitions. [2021-12-14 14:43:01,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:43:01,162 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 [2021-12-14 14:43:01,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:43:01,257 INFO L225 Difference]: With dead ends: 29559 [2021-12-14 14:43:01,260 INFO L226 Difference]: Without dead ends: 19400 [2021-12-14 14:43:01,280 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 [2021-12-14 14:43:01,281 INFO L933 BasicCegarLoop]: 722 mSDtfsCounter, 1341 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 561 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1359 SdHoareTripleChecker+Valid, 1602 SdHoareTripleChecker+Invalid, 1659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 561 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-14 14:43:01,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1359 Valid, 1602 Invalid, 1659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [561 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-14 14:43:01,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19400 states. [2021-12-14 14:43:01,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19400 to 19225. [2021-12-14 14:43:02,018 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) [2021-12-14 14:43:02,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19225 states to 19225 states and 32895 transitions. [2021-12-14 14:43:02,123 INFO L78 Accepts]: Start accepts. Automaton has 19225 states and 32895 transitions. Word has length 124 [2021-12-14 14:43:02,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:43:02,123 INFO L470 AbstractCegarLoop]: Abstraction has 19225 states and 32895 transitions. [2021-12-14 14:43:02,123 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) [2021-12-14 14:43:02,123 INFO L276 IsEmpty]: Start isEmpty. Operand 19225 states and 32895 transitions. [2021-12-14 14:43:02,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-14 14:43:02,140 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:43:02,140 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] [2021-12-14 14:43:02,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-14 14:43:02,141 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:43:02,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:43:02,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1668476153, now seen corresponding path program 1 times [2021-12-14 14:43:02,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:43:02,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969401794] [2021-12-14 14:43:02,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:43:02,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:43:02,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:02,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:43:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:02,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:43:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:02,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:43:02,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:02,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:43:02,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:02,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:43:02,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:02,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:43:02,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:02,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 14:43:02,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:02,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-14 14:43:02,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:02,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-14 14:43:02,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:02,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-14 14:43:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:02,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 14:43:02,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:02,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-14 14:43:02,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:02,207 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-14 14:43:02,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:43:02,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969401794] [2021-12-14 14:43:02,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969401794] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:43:02,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:43:02,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:43:02,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154269845] [2021-12-14 14:43:02,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:43:02,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:43:02,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:43:02,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:43:02,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:43:02,209 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) [2021-12-14 14:43:04,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:43:04,117 INFO L93 Difference]: Finished difference Result 50991 states and 88730 transitions. [2021-12-14 14:43:04,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:43:04,117 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 [2021-12-14 14:43:04,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:43:04,220 INFO L225 Difference]: With dead ends: 50991 [2021-12-14 14:43:04,220 INFO L226 Difference]: Without dead ends: 34521 [2021-12-14 14:43:04,254 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 [2021-12-14 14:43:04,255 INFO L933 BasicCegarLoop]: 714 mSDtfsCounter, 1340 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 1100 mSolverCounterSat, 575 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1358 SdHoareTripleChecker+Valid, 1594 SdHoareTripleChecker+Invalid, 1675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 575 IncrementalHoareTripleChecker+Valid, 1100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-14 14:43:04,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1358 Valid, 1594 Invalid, 1675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [575 Valid, 1100 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-14 14:43:04,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34521 states. [2021-12-14 14:43:05,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34521 to 34346. [2021-12-14 14:43:05,628 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) [2021-12-14 14:43:05,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34346 states to 34346 states and 58672 transitions. [2021-12-14 14:43:05,716 INFO L78 Accepts]: Start accepts. Automaton has 34346 states and 58672 transitions. Word has length 125 [2021-12-14 14:43:05,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:43:05,716 INFO L470 AbstractCegarLoop]: Abstraction has 34346 states and 58672 transitions. [2021-12-14 14:43:05,716 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) [2021-12-14 14:43:05,716 INFO L276 IsEmpty]: Start isEmpty. Operand 34346 states and 58672 transitions. [2021-12-14 14:43:05,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-12-14 14:43:05,733 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:43:05,733 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] [2021-12-14 14:43:05,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-14 14:43:05,734 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:43:05,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:43:05,734 INFO L85 PathProgramCache]: Analyzing trace with hash 736334849, now seen corresponding path program 1 times [2021-12-14 14:43:05,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:43:05,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762432129] [2021-12-14 14:43:05,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:43:05,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:43:05,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:05,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:43:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:05,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:43:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:05,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:43:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:05,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:43:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:05,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:43:05,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:05,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:43:05,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:05,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-14 14:43:05,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:05,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 14:43:05,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:05,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 14:43:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:05,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 14:43:05,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:05,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-14 14:43:05,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:05,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-14 14:43:05,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:05,807 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-14 14:43:05,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:43:05,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762432129] [2021-12-14 14:43:05,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762432129] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:43:05,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:43:05,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:43:05,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598043423] [2021-12-14 14:43:05,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:43:05,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:43:05,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:43:05,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:43:05,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:43:05,809 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) [2021-12-14 14:43:08,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:43:08,561 INFO L93 Difference]: Finished difference Result 93863 states and 162524 transitions. [2021-12-14 14:43:08,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:43:08,561 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 [2021-12-14 14:43:08,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:43:08,764 INFO L225 Difference]: With dead ends: 93863 [2021-12-14 14:43:08,764 INFO L226 Difference]: Without dead ends: 63188 [2021-12-14 14:43:08,826 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 [2021-12-14 14:43:08,828 INFO L933 BasicCegarLoop]: 726 mSDtfsCounter, 1338 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 1099 mSolverCounterSat, 572 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1356 SdHoareTripleChecker+Valid, 1640 SdHoareTripleChecker+Invalid, 1671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 572 IncrementalHoareTripleChecker+Valid, 1099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-14 14:43:08,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1356 Valid, 1640 Invalid, 1671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [572 Valid, 1099 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-14 14:43:08,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63188 states. [2021-12-14 14:43:11,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63188 to 63013. [2021-12-14 14:43:11,294 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) [2021-12-14 14:43:11,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63013 states to 63013 states and 107381 transitions. [2021-12-14 14:43:11,462 INFO L78 Accepts]: Start accepts. Automaton has 63013 states and 107381 transitions. Word has length 126 [2021-12-14 14:43:11,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:43:11,462 INFO L470 AbstractCegarLoop]: Abstraction has 63013 states and 107381 transitions. [2021-12-14 14:43:11,462 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) [2021-12-14 14:43:11,462 INFO L276 IsEmpty]: Start isEmpty. Operand 63013 states and 107381 transitions. [2021-12-14 14:43:11,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-14 14:43:11,483 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:43:11,483 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] [2021-12-14 14:43:11,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-14 14:43:11,484 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:43:11,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:43:11,484 INFO L85 PathProgramCache]: Analyzing trace with hash -164365415, now seen corresponding path program 1 times [2021-12-14 14:43:11,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:43:11,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078735795] [2021-12-14 14:43:11,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:43:11,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:43:11,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:11,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:43:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:11,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:43:11,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:11,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:43:11,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:11,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:43:11,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:11,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:43:11,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:11,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:43:11,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:11,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 14:43:11,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:11,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-14 14:43:11,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:11,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 14:43:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:11,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-14 14:43:11,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:11,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-14 14:43:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:11,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-14 14:43:11,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:11,548 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-14 14:43:11,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:43:11,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078735795] [2021-12-14 14:43:11,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078735795] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:43:11,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:43:11,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 14:43:11,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481144015] [2021-12-14 14:43:11,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:43:11,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 14:43:11,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:43:11,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 14:43:11,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 14:43:11,550 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) [2021-12-14 14:43:15,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 14:43:15,520 INFO L93 Difference]: Finished difference Result 118239 states and 205158 transitions. [2021-12-14 14:43:15,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 14:43:15,523 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 [2021-12-14 14:43:15,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 14:43:16,180 INFO L225 Difference]: With dead ends: 118239 [2021-12-14 14:43:16,180 INFO L226 Difference]: Without dead ends: 118061 [2021-12-14 14:43:16,222 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 [2021-12-14 14:43:16,223 INFO L933 BasicCegarLoop]: 719 mSDtfsCounter, 1334 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 571 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1352 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 1679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 571 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-14 14:43:16,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1352 Valid, 1605 Invalid, 1679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [571 Valid, 1108 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-14 14:43:16,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118061 states. [2021-12-14 14:43:20,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118061 to 117886. [2021-12-14 14:43:20,281 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) [2021-12-14 14:43:20,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117886 states to 117886 states and 200254 transitions. [2021-12-14 14:43:20,703 INFO L78 Accepts]: Start accepts. Automaton has 117886 states and 200254 transitions. Word has length 127 [2021-12-14 14:43:20,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 14:43:20,703 INFO L470 AbstractCegarLoop]: Abstraction has 117886 states and 200254 transitions. [2021-12-14 14:43:20,703 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) [2021-12-14 14:43:20,703 INFO L276 IsEmpty]: Start isEmpty. Operand 117886 states and 200254 transitions. [2021-12-14 14:43:20,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-14 14:43:20,729 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 14:43:20,730 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] [2021-12-14 14:43:20,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-14 14:43:20,730 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 14:43:20,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 14:43:20,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1614008734, now seen corresponding path program 1 times [2021-12-14 14:43:20,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 14:43:20,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716560083] [2021-12-14 14:43:20,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 14:43:20,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 14:43:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:20,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 14:43:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:20,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 14:43:20,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:20,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 14:43:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:20,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 14:43:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:20,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 14:43:20,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:20,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 14:43:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:20,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 14:43:20,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:20,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 14:43:20,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:20,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 14:43:20,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:20,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-14 14:43:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:20,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 14:43:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:20,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 14:43:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 14:43:20,928 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-14 14:43:20,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 14:43:20,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716560083] [2021-12-14 14:43:20,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716560083] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 14:43:20,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 14:43:20,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-12-14 14:43:20,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539118241] [2021-12-14 14:43:20,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 14:43:20,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-14 14:43:20,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 14:43:20,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-14 14:43:20,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2021-12-14 14:43:20,931 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)