./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec8_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec8_product29.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9244be1607acf28cf3da39a66e263e3f7b227fe42ed993f89a6311649f8ded26 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 00:52:59,591 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 00:52:59,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 00:52:59,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 00:52:59,629 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 00:52:59,632 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 00:52:59,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 00:52:59,637 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 00:52:59,640 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 00:52:59,644 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 00:52:59,645 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 00:52:59,646 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 00:52:59,646 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 00:52:59,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 00:52:59,649 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 00:52:59,655 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 00:52:59,655 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 00:52:59,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 00:52:59,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 00:52:59,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 00:52:59,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 00:52:59,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 00:52:59,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 00:52:59,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 00:52:59,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 00:52:59,669 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 00:52:59,669 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 00:52:59,670 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 00:52:59,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 00:52:59,671 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 00:52:59,672 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 00:52:59,672 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 00:52:59,673 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 00:52:59,674 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 00:52:59,674 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 00:52:59,675 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 00:52:59,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 00:52:59,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 00:52:59,676 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 00:52:59,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 00:52:59,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 00:52:59,678 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-28 00:52:59,704 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 00:52:59,704 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 00:52:59,705 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 00:52:59,705 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 00:52:59,706 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 00:52:59,706 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 00:52:59,707 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 00:52:59,707 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 00:52:59,707 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 00:52:59,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 00:52:59,708 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 00:52:59,708 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 00:52:59,708 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 00:52:59,708 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 00:52:59,708 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 00:52:59,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 00:52:59,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 00:52:59,709 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 00:52:59,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 00:52:59,709 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 00:52:59,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 00:52:59,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 00:52:59,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 00:52:59,709 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 00:52:59,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 00:52:59,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 00:52:59,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 00:52:59,720 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 00:52:59,720 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 00:52:59,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 00:52:59,720 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 00:52:59,721 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 00:52:59,721 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 00:52:59,721 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9244be1607acf28cf3da39a66e263e3f7b227fe42ed993f89a6311649f8ded26 [2021-12-28 00:52:59,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 00:52:59,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 00:52:59,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 00:52:59,962 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 00:52:59,963 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 00:52:59,964 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec8_product29.cil.c [2021-12-28 00:53:00,012 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b367945b4/e126468ef144445bbb51f56fff04d40a/FLAG6cf6a877e [2021-12-28 00:53:00,504 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 00:53:00,504 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product29.cil.c [2021-12-28 00:53:00,527 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b367945b4/e126468ef144445bbb51f56fff04d40a/FLAG6cf6a877e [2021-12-28 00:53:01,042 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b367945b4/e126468ef144445bbb51f56fff04d40a [2021-12-28 00:53:01,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 00:53:01,044 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 00:53:01,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 00:53:01,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 00:53:01,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 00:53:01,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 12:53:01" (1/1) ... [2021-12-28 00:53:01,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69db341a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:53:01, skipping insertion in model container [2021-12-28 00:53:01,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 12:53:01" (1/1) ... [2021-12-28 00:53:01,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 00:53:01,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 00:53:01,415 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product29.cil.c[29472,29485] [2021-12-28 00:53:01,495 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 00:53:01,504 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 00:53:01,539 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product29.cil.c[29472,29485] [2021-12-28 00:53:01,579 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 00:53:01,611 INFO L208 MainTranslator]: Completed translation [2021-12-28 00:53:01,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:53:01 WrapperNode [2021-12-28 00:53:01,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 00:53:01,612 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 00:53:01,612 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 00:53:01,612 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 00:53:01,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:53:01" (1/1) ... [2021-12-28 00:53:01,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:53:01" (1/1) ... [2021-12-28 00:53:01,685 INFO L137 Inliner]: procedures = 132, calls = 232, calls flagged for inlining = 56, calls inlined = 48, statements flattened = 939 [2021-12-28 00:53:01,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 00:53:01,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 00:53:01,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 00:53:01,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 00:53:01,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:53:01" (1/1) ... [2021-12-28 00:53:01,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:53:01" (1/1) ... [2021-12-28 00:53:01,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:53:01" (1/1) ... [2021-12-28 00:53:01,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:53:01" (1/1) ... [2021-12-28 00:53:01,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:53:01" (1/1) ... [2021-12-28 00:53:01,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:53:01" (1/1) ... [2021-12-28 00:53:01,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:53:01" (1/1) ... [2021-12-28 00:53:01,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 00:53:01,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 00:53:01,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 00:53:01,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 00:53:01,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:53:01" (1/1) ... [2021-12-28 00:53:01,779 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 00:53:01,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:53:01,800 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-28 00:53:01,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-28 00:53:01,826 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-12-28 00:53:01,826 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-12-28 00:53:01,826 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-28 00:53:01,826 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-28 00:53:01,827 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-12-28 00:53:01,827 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-12-28 00:53:01,827 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-28 00:53:01,827 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-28 00:53:01,827 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-12-28 00:53:01,828 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-12-28 00:53:01,828 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-28 00:53:01,828 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-28 00:53:01,828 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-28 00:53:01,828 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-28 00:53:01,829 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-12-28 00:53:01,829 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-12-28 00:53:01,829 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-12-28 00:53:01,829 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-12-28 00:53:01,829 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-12-28 00:53:01,829 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-12-28 00:53:01,829 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-12-28 00:53:01,829 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-12-28 00:53:01,830 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-12-28 00:53:01,830 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-12-28 00:53:01,830 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-28 00:53:01,830 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-12-28 00:53:01,830 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-12-28 00:53:01,830 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-28 00:53:01,830 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-28 00:53:01,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 00:53:01,830 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-12-28 00:53:01,831 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-12-28 00:53:01,831 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2021-12-28 00:53:01,831 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2021-12-28 00:53:01,831 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-28 00:53:01,831 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-28 00:53:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-12-28 00:53:01,832 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-12-28 00:53:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-12-28 00:53:01,832 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-12-28 00:53:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-28 00:53:01,832 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-28 00:53:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2021-12-28 00:53:01,833 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2021-12-28 00:53:01,833 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2021-12-28 00:53:01,833 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2021-12-28 00:53:01,833 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-28 00:53:01,833 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-28 00:53:01,833 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-12-28 00:53:01,833 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-12-28 00:53:01,833 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-12-28 00:53:01,834 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-12-28 00:53:01,834 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-28 00:53:01,834 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-28 00:53:01,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 00:53:01,835 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-12-28 00:53:01,835 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-12-28 00:53:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-28 00:53:01,836 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-28 00:53:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 00:53:01,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 00:53:02,052 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 00:53:02,062 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 00:53:02,624 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 00:53:02,632 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 00:53:02,632 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 00:53:02,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 12:53:02 BoogieIcfgContainer [2021-12-28 00:53:02,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 00:53:02,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 00:53:02,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 00:53:02,645 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 00:53:02,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 12:53:01" (1/3) ... [2021-12-28 00:53:02,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b704d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 12:53:02, skipping insertion in model container [2021-12-28 00:53:02,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:53:01" (2/3) ... [2021-12-28 00:53:02,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b704d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 12:53:02, skipping insertion in model container [2021-12-28 00:53:02,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 12:53:02" (3/3) ... [2021-12-28 00:53:02,647 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec8_product29.cil.c [2021-12-28 00:53:02,650 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 00:53:02,651 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 00:53:02,680 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 00:53:02,685 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 00:53:02,685 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 00:53:02,702 INFO L276 IsEmpty]: Start isEmpty. Operand has 409 states, 316 states have (on average 1.5537974683544304) internal successors, (491), 321 states have internal predecessors, (491), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2021-12-28 00:53:02,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-28 00:53:02,715 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:02,716 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:53:02,716 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:02,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:02,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1913469271, now seen corresponding path program 1 times [2021-12-28 00:53:02,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:02,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508328156] [2021-12-28 00:53:02,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:02,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:02,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:02,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:03,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:03,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:03,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 00:53:03,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:03,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 00:53:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:03,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 00:53:03,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:03,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 00:53:03,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:03,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 00:53:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:03,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 00:53:03,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:03,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 00:53:03,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:03,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 00:53:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:03,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 00:53:03,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:03,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 00:53:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:03,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 00:53:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:03,156 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-28 00:53:03,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:03,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508328156] [2021-12-28 00:53:03,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508328156] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:53:03,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817438674] [2021-12-28 00:53:03,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:03,159 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:53:03,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:53:03,161 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:53:03,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-28 00:53:03,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:03,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-28 00:53:03,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:53:03,648 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-28 00:53:03,648 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:53:03,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817438674] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:53:03,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:53:03,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2021-12-28 00:53:03,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603341613] [2021-12-28 00:53:03,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:53:03,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-28 00:53:03,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:03,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-28 00:53:03,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:53:03,680 INFO L87 Difference]: Start difference. First operand has 409 states, 316 states have (on average 1.5537974683544304) internal successors, (491), 321 states have internal predecessors, (491), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 00:53:03,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:53:03,719 INFO L93 Difference]: Finished difference Result 630 states and 932 transitions. [2021-12-28 00:53:03,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-28 00:53:03,721 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 110 [2021-12-28 00:53:03,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:53:03,731 INFO L225 Difference]: With dead ends: 630 [2021-12-28 00:53:03,731 INFO L226 Difference]: Without dead ends: 402 [2021-12-28 00:53:03,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:53:03,739 INFO L933 BasicCegarLoop]: 613 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, 613 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:53:03,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:53:03,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2021-12-28 00:53:03,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2021-12-28 00:53:03,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 310 states have (on average 1.5483870967741935) internal successors, (480), 314 states have internal predecessors, (480), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2021-12-28 00:53:03,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 605 transitions. [2021-12-28 00:53:03,788 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 605 transitions. Word has length 110 [2021-12-28 00:53:03,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:53:03,789 INFO L470 AbstractCegarLoop]: Abstraction has 402 states and 605 transitions. [2021-12-28 00:53:03,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 00:53:03,790 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 605 transitions. [2021-12-28 00:53:03,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-28 00:53:03,794 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:03,794 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:53:03,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-28 00:53:04,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-12-28 00:53:04,013 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:04,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:04,013 INFO L85 PathProgramCache]: Analyzing trace with hash -491967672, now seen corresponding path program 1 times [2021-12-28 00:53:04,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:04,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741869854] [2021-12-28 00:53:04,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:04,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:04,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:04,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:04,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:04,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:04,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:04,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:04,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:04,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 00:53:04,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:04,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 00:53:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:04,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 00:53:04,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:04,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-28 00:53:04,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:04,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 00:53:04,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:04,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 00:53:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:04,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 00:53:04,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:04,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-28 00:53:04,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:04,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-28 00:53:04,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:04,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-28 00:53:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:04,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 00:53:04,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:04,189 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-28 00:53:04,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:04,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741869854] [2021-12-28 00:53:04,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741869854] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:53:04,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925739390] [2021-12-28 00:53:04,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:04,190 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:53:04,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:53:04,192 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:53:04,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-28 00:53:04,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:04,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 1111 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-28 00:53:04,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:53:04,645 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-28 00:53:04,645 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:53:04,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925739390] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:53:04,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:53:04,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-28 00:53:04,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615953542] [2021-12-28 00:53:04,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:53:04,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 00:53:04,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:04,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 00:53:04,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:53:04,647 INFO L87 Difference]: Start difference. First operand 402 states and 605 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 00:53:04,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:53:04,710 INFO L93 Difference]: Finished difference Result 620 states and 910 transitions. [2021-12-28 00:53:04,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 00:53:04,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 111 [2021-12-28 00:53:04,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:53:04,714 INFO L225 Difference]: With dead ends: 620 [2021-12-28 00:53:04,714 INFO L226 Difference]: Without dead ends: 405 [2021-12-28 00:53:04,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:53:04,716 INFO L933 BasicCegarLoop]: 603 mSDtfsCounter, 1 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1204 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:53:04,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1204 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:53:04,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2021-12-28 00:53:04,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 404. [2021-12-28 00:53:04,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 312 states have (on average 1.544871794871795) internal successors, (482), 316 states have internal predecessors, (482), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2021-12-28 00:53:04,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 607 transitions. [2021-12-28 00:53:04,738 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 607 transitions. Word has length 111 [2021-12-28 00:53:04,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:53:04,739 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 607 transitions. [2021-12-28 00:53:04,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 00:53:04,740 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 607 transitions. [2021-12-28 00:53:04,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-28 00:53:04,743 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:04,743 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:53:04,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-28 00:53:04,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-12-28 00:53:04,948 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:04,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:04,948 INFO L85 PathProgramCache]: Analyzing trace with hash 31342431, now seen corresponding path program 1 times [2021-12-28 00:53:04,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:04,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113835162] [2021-12-28 00:53:04,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:04,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:04,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:05,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:05,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:05,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 00:53:05,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 00:53:05,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 00:53:05,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-28 00:53:05,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-28 00:53:05,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-28 00:53:05,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 00:53:05,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-28 00:53:05,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 00:53:05,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 00:53:05,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-28 00:53:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,061 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 00:53:05,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:05,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113835162] [2021-12-28 00:53:05,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113835162] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:53:05,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335291529] [2021-12-28 00:53:05,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:05,062 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:53:05,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:53:05,063 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:53:05,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-28 00:53:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 1125 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-28 00:53:05,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:53:05,401 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-28 00:53:05,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:53:05,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335291529] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:53:05,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:53:05,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-28 00:53:05,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133277605] [2021-12-28 00:53:05,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:53:05,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 00:53:05,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:05,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 00:53:05,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:53:05,404 INFO L87 Difference]: Start difference. First operand 404 states and 607 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 00:53:05,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:53:05,444 INFO L93 Difference]: Finished difference Result 851 states and 1298 transitions. [2021-12-28 00:53:05,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 00:53:05,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2021-12-28 00:53:05,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:53:05,446 INFO L225 Difference]: With dead ends: 851 [2021-12-28 00:53:05,447 INFO L226 Difference]: Without dead ends: 474 [2021-12-28 00:53:05,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:53:05,450 INFO L933 BasicCegarLoop]: 627 mSDtfsCounter, 126 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:53:05,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 1186 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:53:05,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2021-12-28 00:53:05,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 466. [2021-12-28 00:53:05,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 360 states have (on average 1.5638888888888889) internal successors, (563), 364 states have internal predecessors, (563), 77 states have call successors, (77), 28 states have call predecessors, (77), 28 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2021-12-28 00:53:05,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 716 transitions. [2021-12-28 00:53:05,489 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 716 transitions. Word has length 117 [2021-12-28 00:53:05,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:53:05,490 INFO L470 AbstractCegarLoop]: Abstraction has 466 states and 716 transitions. [2021-12-28 00:53:05,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 00:53:05,492 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 716 transitions. [2021-12-28 00:53:05,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-28 00:53:05,494 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:05,495 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:53:05,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-28 00:53:05,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:53:05,708 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:05,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:05,708 INFO L85 PathProgramCache]: Analyzing trace with hash -966711120, now seen corresponding path program 1 times [2021-12-28 00:53:05,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:05,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66397256] [2021-12-28 00:53:05,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:05,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:05,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:05,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:05,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 00:53:05,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 00:53:05,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 00:53:05,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-28 00:53:05,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-28 00:53:05,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 00:53:05,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 00:53:05,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-28 00:53:05,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 00:53:05,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 00:53:05,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-28 00:53:05,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:05,845 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 00:53:05,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:05,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66397256] [2021-12-28 00:53:05,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66397256] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:53:05,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167558999] [2021-12-28 00:53:05,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:05,849 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:53:05,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:53:05,850 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:53:05,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-28 00:53:06,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:06,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 1132 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-28 00:53:06,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:53:06,281 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-28 00:53:06,281 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:53:06,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167558999] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:53:06,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:53:06,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-12-28 00:53:06,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171286607] [2021-12-28 00:53:06,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:53:06,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 00:53:06,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:06,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 00:53:06,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-28 00:53:06,282 INFO L87 Difference]: Start difference. First operand 466 states and 716 transitions. Second operand has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-28 00:53:06,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:53:06,323 INFO L93 Difference]: Finished difference Result 923 states and 1422 transitions. [2021-12-28 00:53:06,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 00:53:06,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 118 [2021-12-28 00:53:06,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:53:06,338 INFO L225 Difference]: With dead ends: 923 [2021-12-28 00:53:06,338 INFO L226 Difference]: Without dead ends: 468 [2021-12-28 00:53:06,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:53:06,340 INFO L933 BasicCegarLoop]: 596 mSDtfsCounter, 144 mSDsluCounter, 1622 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 2218 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:53:06,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 2218 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:53:06,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2021-12-28 00:53:06,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 468. [2021-12-28 00:53:06,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 361 states have (on average 1.5623268698060941) internal successors, (564), 366 states have internal predecessors, (564), 77 states have call successors, (77), 28 states have call predecessors, (77), 29 states have return successors, (78), 75 states have call predecessors, (78), 76 states have call successors, (78) [2021-12-28 00:53:06,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 719 transitions. [2021-12-28 00:53:06,353 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 719 transitions. Word has length 118 [2021-12-28 00:53:06,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:53:06,353 INFO L470 AbstractCegarLoop]: Abstraction has 468 states and 719 transitions. [2021-12-28 00:53:06,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-28 00:53:06,353 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 719 transitions. [2021-12-28 00:53:06,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-28 00:53:06,355 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:06,355 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:53:06,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-28 00:53:06,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:53:06,573 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:06,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:06,574 INFO L85 PathProgramCache]: Analyzing trace with hash -919767989, now seen corresponding path program 1 times [2021-12-28 00:53:06,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:06,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213202337] [2021-12-28 00:53:06,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:06,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:06,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:06,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:06,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:06,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:06,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:06,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:06,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:06,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:53:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:06,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-28 00:53:06,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:06,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-28 00:53:06,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:06,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 00:53:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:06,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 00:53:06,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:06,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 00:53:06,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:06,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 00:53:06,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:06,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 00:53:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:06,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-28 00:53:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:06,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 00:53:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:06,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-28 00:53:06,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:06,682 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-28 00:53:06,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:06,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213202337] [2021-12-28 00:53:06,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213202337] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:53:06,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007079782] [2021-12-28 00:53:06,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:06,682 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:53:06,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:53:06,683 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:53:06,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-28 00:53:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:06,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 1133 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-28 00:53:06,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:53:07,064 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-28 00:53:07,065 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:53:07,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007079782] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:53:07,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:53:07,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-28 00:53:07,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107572577] [2021-12-28 00:53:07,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:53:07,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 00:53:07,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:07,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 00:53:07,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-12-28 00:53:07,066 INFO L87 Difference]: Start difference. First operand 468 states and 719 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-28 00:53:07,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:53:07,115 INFO L93 Difference]: Finished difference Result 925 states and 1427 transitions. [2021-12-28 00:53:07,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 00:53:07,115 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 119 [2021-12-28 00:53:07,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:53:07,117 INFO L225 Difference]: With dead ends: 925 [2021-12-28 00:53:07,118 INFO L226 Difference]: Without dead ends: 470 [2021-12-28 00:53:07,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-12-28 00:53:07,119 INFO L933 BasicCegarLoop]: 594 mSDtfsCounter, 143 mSDsluCounter, 1613 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 2207 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:53:07,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 2207 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:53:07,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2021-12-28 00:53:07,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2021-12-28 00:53:07,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 362 states have (on average 1.5607734806629834) internal successors, (565), 368 states have internal predecessors, (565), 77 states have call successors, (77), 28 states have call predecessors, (77), 30 states have return successors, (83), 75 states have call predecessors, (83), 76 states have call successors, (83) [2021-12-28 00:53:07,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 725 transitions. [2021-12-28 00:53:07,133 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 725 transitions. Word has length 119 [2021-12-28 00:53:07,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:53:07,133 INFO L470 AbstractCegarLoop]: Abstraction has 470 states and 725 transitions. [2021-12-28 00:53:07,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-28 00:53:07,133 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 725 transitions. [2021-12-28 00:53:07,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-28 00:53:07,135 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:07,135 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:53:07,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-28 00:53:07,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:53:07,352 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:07,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:07,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1604266393, now seen corresponding path program 1 times [2021-12-28 00:53:07,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:07,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586816894] [2021-12-28 00:53:07,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:07,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:07,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:07,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:07,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:07,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:07,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:07,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:07,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:07,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:53:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:07,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:53:07,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:07,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 00:53:07,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:07,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-28 00:53:07,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:07,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 00:53:07,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:07,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 00:53:07,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:07,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-28 00:53:07,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:07,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-28 00:53:07,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:07,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 00:53:07,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:07,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 00:53:07,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:07,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-28 00:53:07,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:07,435 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 00:53:07,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:07,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586816894] [2021-12-28 00:53:07,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586816894] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:53:07,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:53:07,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 00:53:07,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418597558] [2021-12-28 00:53:07,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:53:07,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 00:53:07,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:07,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 00:53:07,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:53:07,437 INFO L87 Difference]: Start difference. First operand 470 states and 725 transitions. Second operand has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-28 00:53:08,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:53:08,838 INFO L93 Difference]: Finished difference Result 1020 states and 1592 transitions. [2021-12-28 00:53:08,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-28 00:53:08,839 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 120 [2021-12-28 00:53:08,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:53:08,842 INFO L225 Difference]: With dead ends: 1020 [2021-12-28 00:53:08,842 INFO L226 Difference]: Without dead ends: 573 [2021-12-28 00:53:08,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-28 00:53:08,844 INFO L933 BasicCegarLoop]: 633 mSDtfsCounter, 1514 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 2079 mSolverCounterSat, 525 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1535 SdHoareTripleChecker+Valid, 1571 SdHoareTripleChecker+Invalid, 2604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 525 IncrementalHoareTripleChecker+Valid, 2079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-28 00:53:08,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1535 Valid, 1571 Invalid, 2604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [525 Valid, 2079 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-28 00:53:08,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2021-12-28 00:53:08,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 470. [2021-12-28 00:53:08,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 362 states have (on average 1.5607734806629834) internal successors, (565), 368 states have internal predecessors, (565), 77 states have call successors, (77), 28 states have call predecessors, (77), 30 states have return successors, (82), 75 states have call predecessors, (82), 76 states have call successors, (82) [2021-12-28 00:53:08,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 724 transitions. [2021-12-28 00:53:08,865 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 724 transitions. Word has length 120 [2021-12-28 00:53:08,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:53:08,865 INFO L470 AbstractCegarLoop]: Abstraction has 470 states and 724 transitions. [2021-12-28 00:53:08,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-28 00:53:08,866 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 724 transitions. [2021-12-28 00:53:08,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-28 00:53:08,867 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:08,867 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:53:08,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 00:53:08,867 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:08,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:08,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1575919260, now seen corresponding path program 2 times [2021-12-28 00:53:08,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:08,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536003154] [2021-12-28 00:53:08,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:08,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:08,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:08,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:08,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:08,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:08,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:08,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:08,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:08,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:53:08,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:08,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:53:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:08,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-28 00:53:08,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:08,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 00:53:08,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:08,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-28 00:53:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:08,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 00:53:08,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:08,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 00:53:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:08,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-28 00:53:08,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:08,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 00:53:08,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:08,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 00:53:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:08,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 00:53:08,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:08,963 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 00:53:08,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:08,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536003154] [2021-12-28 00:53:08,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536003154] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:53:08,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:53:08,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 00:53:08,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099950283] [2021-12-28 00:53:08,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:53:08,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 00:53:08,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:08,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 00:53:08,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:53:08,965 INFO L87 Difference]: Start difference. First operand 470 states and 724 transitions. Second operand has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-28 00:53:10,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:53:10,357 INFO L93 Difference]: Finished difference Result 1022 states and 1595 transitions. [2021-12-28 00:53:10,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-28 00:53:10,357 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 121 [2021-12-28 00:53:10,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:53:10,360 INFO L225 Difference]: With dead ends: 1022 [2021-12-28 00:53:10,360 INFO L226 Difference]: Without dead ends: 575 [2021-12-28 00:53:10,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-12-28 00:53:10,362 INFO L933 BasicCegarLoop]: 640 mSDtfsCounter, 1495 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 2117 mSolverCounterSat, 511 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 2628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 511 IncrementalHoareTripleChecker+Valid, 2117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-28 00:53:10,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1516 Valid, 1578 Invalid, 2628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [511 Valid, 2117 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-28 00:53:10,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2021-12-28 00:53:10,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 472. [2021-12-28 00:53:10,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 363 states have (on average 1.559228650137741) internal successors, (566), 370 states have internal predecessors, (566), 77 states have call successors, (77), 28 states have call predecessors, (77), 31 states have return successors, (84), 75 states have call predecessors, (84), 76 states have call successors, (84) [2021-12-28 00:53:10,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 727 transitions. [2021-12-28 00:53:10,396 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 727 transitions. Word has length 121 [2021-12-28 00:53:10,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:53:10,396 INFO L470 AbstractCegarLoop]: Abstraction has 472 states and 727 transitions. [2021-12-28 00:53:10,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-28 00:53:10,396 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 727 transitions. [2021-12-28 00:53:10,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-28 00:53:10,398 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:10,398 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:53:10,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-28 00:53:10,398 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:10,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:10,398 INFO L85 PathProgramCache]: Analyzing trace with hash 848855842, now seen corresponding path program 1 times [2021-12-28 00:53:10,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:10,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427775896] [2021-12-28 00:53:10,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:10,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:10,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:10,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:10,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:10,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:10,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:10,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:10,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:10,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:53:10,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:10,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:53:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:10,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:53:10,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:10,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-28 00:53:10,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:10,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-28 00:53:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:10,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 00:53:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:10,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-28 00:53:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:10,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 00:53:10,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:10,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-28 00:53:10,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:10,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-28 00:53:10,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:10,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 00:53:10,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:10,539 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-28 00:53:10,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:10,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427775896] [2021-12-28 00:53:10,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427775896] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:53:10,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:53:10,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-28 00:53:10,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024355535] [2021-12-28 00:53:10,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:53:10,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 00:53:10,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:10,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 00:53:10,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-28 00:53:10,541 INFO L87 Difference]: Start difference. First operand 472 states and 727 transitions. Second operand has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2021-12-28 00:53:12,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:53:12,480 INFO L93 Difference]: Finished difference Result 1020 states and 1590 transitions. [2021-12-28 00:53:12,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-28 00:53:12,481 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 122 [2021-12-28 00:53:12,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:53:12,484 INFO L225 Difference]: With dead ends: 1020 [2021-12-28 00:53:12,484 INFO L226 Difference]: Without dead ends: 575 [2021-12-28 00:53:12,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-28 00:53:12,485 INFO L933 BasicCegarLoop]: 615 mSDtfsCounter, 1652 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 3738 mSolverCounterSat, 600 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1652 SdHoareTripleChecker+Valid, 1917 SdHoareTripleChecker+Invalid, 4338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 600 IncrementalHoareTripleChecker+Valid, 3738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-28 00:53:12,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1652 Valid, 1917 Invalid, 4338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [600 Valid, 3738 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-28 00:53:12,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2021-12-28 00:53:12,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 472. [2021-12-28 00:53:12,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 363 states have (on average 1.559228650137741) internal successors, (566), 370 states have internal predecessors, (566), 77 states have call successors, (77), 28 states have call predecessors, (77), 31 states have return successors, (83), 75 states have call predecessors, (83), 76 states have call successors, (83) [2021-12-28 00:53:12,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 726 transitions. [2021-12-28 00:53:12,513 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 726 transitions. Word has length 122 [2021-12-28 00:53:12,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:53:12,513 INFO L470 AbstractCegarLoop]: Abstraction has 472 states and 726 transitions. [2021-12-28 00:53:12,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2021-12-28 00:53:12,514 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 726 transitions. [2021-12-28 00:53:12,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-28 00:53:12,516 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:12,516 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:53:12,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-28 00:53:12,517 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:12,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:12,517 INFO L85 PathProgramCache]: Analyzing trace with hash 2108958628, now seen corresponding path program 2 times [2021-12-28 00:53:12,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:12,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901484186] [2021-12-28 00:53:12,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:12,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:12,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:12,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:12,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:12,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:12,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:12,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:12,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:12,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:53:12,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:12,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:53:12,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:12,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:53:12,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:12,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-28 00:53:12,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:12,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-28 00:53:12,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:12,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 00:53:12,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:12,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 00:53:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:12,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 00:53:12,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:12,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-28 00:53:12,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:12,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-28 00:53:12,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:12,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-28 00:53:12,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:12,650 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-28 00:53:12,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:12,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901484186] [2021-12-28 00:53:12,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901484186] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:53:12,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:53:12,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-28 00:53:12,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137716219] [2021-12-28 00:53:12,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:53:12,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 00:53:12,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:12,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 00:53:12,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-28 00:53:12,652 INFO L87 Difference]: Start difference. First operand 472 states and 726 transitions. Second operand has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2021-12-28 00:53:14,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:53:14,554 INFO L93 Difference]: Finished difference Result 1022 states and 1596 transitions. [2021-12-28 00:53:14,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-28 00:53:14,554 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 123 [2021-12-28 00:53:14,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:53:14,557 INFO L225 Difference]: With dead ends: 1022 [2021-12-28 00:53:14,557 INFO L226 Difference]: Without dead ends: 577 [2021-12-28 00:53:14,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-12-28 00:53:14,559 INFO L933 BasicCegarLoop]: 625 mSDtfsCounter, 1619 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 3873 mSolverCounterSat, 582 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1619 SdHoareTripleChecker+Valid, 1927 SdHoareTripleChecker+Invalid, 4455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 582 IncrementalHoareTripleChecker+Valid, 3873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-28 00:53:14,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1619 Valid, 1927 Invalid, 4455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [582 Valid, 3873 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-28 00:53:14,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2021-12-28 00:53:14,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 474. [2021-12-28 00:53:14,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 364 states have (on average 1.5576923076923077) internal successors, (567), 372 states have internal predecessors, (567), 77 states have call successors, (77), 28 states have call predecessors, (77), 32 states have return successors, (88), 75 states have call predecessors, (88), 76 states have call successors, (88) [2021-12-28 00:53:14,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 732 transitions. [2021-12-28 00:53:14,577 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 732 transitions. Word has length 123 [2021-12-28 00:53:14,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:53:14,577 INFO L470 AbstractCegarLoop]: Abstraction has 474 states and 732 transitions. [2021-12-28 00:53:14,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2021-12-28 00:53:14,577 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 732 transitions. [2021-12-28 00:53:14,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-28 00:53:14,579 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:14,579 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:53:14,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-28 00:53:14,579 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:14,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:14,579 INFO L85 PathProgramCache]: Analyzing trace with hash -338816835, now seen corresponding path program 1 times [2021-12-28 00:53:14,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:14,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764432428] [2021-12-28 00:53:14,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:14,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:14,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:14,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:14,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:14,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:14,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:14,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:53:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:14,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:53:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:14,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:53:14,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:14,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 00:53:14,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:14,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 00:53:14,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:14,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-28 00:53:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:14,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 00:53:14,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:14,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 00:53:14,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:14,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 00:53:14,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:14,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-28 00:53:14,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:14,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 00:53:14,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:14,659 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:53:14,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:14,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764432428] [2021-12-28 00:53:14,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764432428] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:53:14,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752704541] [2021-12-28 00:53:14,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:14,660 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:53:14,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:53:14,680 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:53:14,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-28 00:53:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:14,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 1138 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-28 00:53:14,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:53:15,030 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:53:15,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 00:53:15,225 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:53:15,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752704541] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 00:53:15,225 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 00:53:15,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2021-12-28 00:53:15,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11902958] [2021-12-28 00:53:15,227 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 00:53:15,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-28 00:53:15,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:15,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-28 00:53:15,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-28 00:53:15,229 INFO L87 Difference]: Start difference. First operand 474 states and 732 transitions. Second operand has 11 states, 11 states have (on average 10.909090909090908) internal successors, (120), 7 states have internal predecessors, (120), 2 states have call successors, (34), 6 states have call predecessors, (34), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-28 00:53:17,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:53:17,027 INFO L93 Difference]: Finished difference Result 1209 states and 1965 transitions. [2021-12-28 00:53:17,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-28 00:53:17,028 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.909090909090908) internal successors, (120), 7 states have internal predecessors, (120), 2 states have call successors, (34), 6 states have call predecessors, (34), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 124 [2021-12-28 00:53:17,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:53:17,032 INFO L225 Difference]: With dead ends: 1209 [2021-12-28 00:53:17,032 INFO L226 Difference]: Without dead ends: 994 [2021-12-28 00:53:17,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2021-12-28 00:53:17,034 INFO L933 BasicCegarLoop]: 762 mSDtfsCounter, 1739 mSDsluCounter, 1599 mSDsCounter, 0 mSdLazyCounter, 3199 mSolverCounterSat, 690 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1793 SdHoareTripleChecker+Valid, 2361 SdHoareTripleChecker+Invalid, 3889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 690 IncrementalHoareTripleChecker+Valid, 3199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-28 00:53:17,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1793 Valid, 2361 Invalid, 3889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [690 Valid, 3199 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-28 00:53:17,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2021-12-28 00:53:17,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 867. [2021-12-28 00:53:17,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 678 states have (on average 1.6224188790560472) internal successors, (1100), 686 states have internal predecessors, (1100), 156 states have call successors, (156), 28 states have call predecessors, (156), 32 states have return successors, (177), 154 states have call predecessors, (177), 155 states have call successors, (177) [2021-12-28 00:53:17,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1433 transitions. [2021-12-28 00:53:17,069 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1433 transitions. Word has length 124 [2021-12-28 00:53:17,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:53:17,069 INFO L470 AbstractCegarLoop]: Abstraction has 867 states and 1433 transitions. [2021-12-28 00:53:17,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.909090909090908) internal successors, (120), 7 states have internal predecessors, (120), 2 states have call successors, (34), 6 states have call predecessors, (34), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-28 00:53:17,069 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1433 transitions. [2021-12-28 00:53:17,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-28 00:53:17,073 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:17,073 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:53:17,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-28 00:53:17,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:53:17,290 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:17,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:17,291 INFO L85 PathProgramCache]: Analyzing trace with hash 356156352, now seen corresponding path program 1 times [2021-12-28 00:53:17,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:17,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667105462] [2021-12-28 00:53:17,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:17,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:17,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:17,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:17,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:17,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:17,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:17,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:53:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:17,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:53:17,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:17,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:53:17,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:17,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 00:53:17,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:17,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 00:53:17,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:17,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-28 00:53:17,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:17,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-28 00:53:17,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:17,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 00:53:17,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:17,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 00:53:17,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:17,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-28 00:53:17,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:17,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-28 00:53:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:17,390 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:53:17,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:17,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667105462] [2021-12-28 00:53:17,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667105462] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:53:17,390 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:53:17,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:53:17,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112343757] [2021-12-28 00:53:17,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:53:17,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:53:17,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:17,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:53:17,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:53:17,392 INFO L87 Difference]: Start difference. First operand 867 states and 1433 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 00:53:18,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:53:18,515 INFO L93 Difference]: Finished difference Result 2167 states and 3670 transitions. [2021-12-28 00:53:18,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:53:18,516 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2021-12-28 00:53:18,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:53:18,521 INFO L225 Difference]: With dead ends: 2167 [2021-12-28 00:53:18,521 INFO L226 Difference]: Without dead ends: 1368 [2021-12-28 00:53:18,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:53:18,524 INFO L933 BasicCegarLoop]: 688 mSDtfsCounter, 1487 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 1070 mSolverCounterSat, 583 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 1653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 583 IncrementalHoareTripleChecker+Valid, 1070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:53:18,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1505 Valid, 1464 Invalid, 1653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [583 Valid, 1070 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-28 00:53:18,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2021-12-28 00:53:18,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 1257. [2021-12-28 00:53:18,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 989 states have (on average 1.6380182002022246) internal successors, (1620), 997 states have internal predecessors, (1620), 235 states have call successors, (235), 28 states have call predecessors, (235), 32 states have return successors, (266), 233 states have call predecessors, (266), 234 states have call successors, (266) [2021-12-28 00:53:18,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2121 transitions. [2021-12-28 00:53:18,572 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2121 transitions. Word has length 130 [2021-12-28 00:53:18,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:53:18,572 INFO L470 AbstractCegarLoop]: Abstraction has 1257 states and 2121 transitions. [2021-12-28 00:53:18,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 00:53:18,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2121 transitions. [2021-12-28 00:53:18,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-28 00:53:18,577 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:18,578 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:53:18,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-28 00:53:18,578 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:18,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:18,578 INFO L85 PathProgramCache]: Analyzing trace with hash 366727282, now seen corresponding path program 1 times [2021-12-28 00:53:18,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:18,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180464520] [2021-12-28 00:53:18,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:18,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:18,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:18,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:18,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:18,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:18,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:18,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:18,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:53:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:18,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:53:18,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:18,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:53:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:18,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-28 00:53:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:18,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 00:53:18,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:18,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 00:53:18,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:18,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 00:53:18,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:18,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 00:53:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:18,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 00:53:18,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:18,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 00:53:18,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:18,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-28 00:53:18,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:18,659 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:53:18,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:18,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180464520] [2021-12-28 00:53:18,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180464520] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:53:18,659 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:53:18,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:53:18,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546607664] [2021-12-28 00:53:18,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:53:18,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:53:18,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:18,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:53:18,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:53:18,661 INFO L87 Difference]: Start difference. First operand 1257 states and 2121 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 00:53:19,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:53:19,787 INFO L93 Difference]: Finished difference Result 3116 states and 5344 transitions. [2021-12-28 00:53:19,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:53:19,787 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 131 [2021-12-28 00:53:19,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:53:19,796 INFO L225 Difference]: With dead ends: 3116 [2021-12-28 00:53:19,796 INFO L226 Difference]: Without dead ends: 1980 [2021-12-28 00:53:19,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:53:19,800 INFO L933 BasicCegarLoop]: 666 mSDtfsCounter, 1499 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 588 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 1629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 588 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:53:19,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1517 Valid, 1401 Invalid, 1629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [588 Valid, 1041 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-28 00:53:19,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1980 states. [2021-12-28 00:53:19,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1980 to 1869. [2021-12-28 00:53:19,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1869 states, 1482 states have (on average 1.6484480431848854) internal successors, (2443), 1490 states have internal predecessors, (2443), 354 states have call successors, (354), 28 states have call predecessors, (354), 32 states have return successors, (385), 352 states have call predecessors, (385), 353 states have call successors, (385) [2021-12-28 00:53:19,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1869 states to 1869 states and 3182 transitions. [2021-12-28 00:53:19,881 INFO L78 Accepts]: Start accepts. Automaton has 1869 states and 3182 transitions. Word has length 131 [2021-12-28 00:53:19,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:53:19,882 INFO L470 AbstractCegarLoop]: Abstraction has 1869 states and 3182 transitions. [2021-12-28 00:53:19,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 00:53:19,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1869 states and 3182 transitions. [2021-12-28 00:53:19,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-12-28 00:53:19,890 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:19,890 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:53:19,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-28 00:53:19,890 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:19,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:19,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1668270942, now seen corresponding path program 1 times [2021-12-28 00:53:19,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:19,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206326997] [2021-12-28 00:53:19,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:19,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:19,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:19,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:19,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:19,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:19,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:19,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:19,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:53:19,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:19,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:53:19,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:19,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:53:19,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:19,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 00:53:19,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:19,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 00:53:19,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:19,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 00:53:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:19,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 00:53:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:19,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-28 00:53:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:19,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 00:53:19,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:19,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-28 00:53:19,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:19,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-28 00:53:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:19,985 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:53:19,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:19,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206326997] [2021-12-28 00:53:19,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206326997] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:53:19,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:53:19,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:53:19,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912774978] [2021-12-28 00:53:19,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:53:19,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:53:19,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:19,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:53:19,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:53:19,987 INFO L87 Difference]: Start difference. First operand 1869 states and 3182 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 00:53:21,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:53:21,112 INFO L93 Difference]: Finished difference Result 4541 states and 7878 transitions. [2021-12-28 00:53:21,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:53:21,113 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2021-12-28 00:53:21,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:53:21,125 INFO L225 Difference]: With dead ends: 4541 [2021-12-28 00:53:21,125 INFO L226 Difference]: Without dead ends: 2918 [2021-12-28 00:53:21,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:53:21,131 INFO L933 BasicCegarLoop]: 652 mSDtfsCounter, 1544 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 607 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1563 SdHoareTripleChecker+Valid, 1382 SdHoareTripleChecker+Invalid, 1620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 607 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-28 00:53:21,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1563 Valid, 1382 Invalid, 1620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [607 Valid, 1013 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-28 00:53:21,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2918 states. [2021-12-28 00:53:21,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2918 to 2807. [2021-12-28 00:53:21,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2807 states, 2258 states have (on average 1.6567759078830824) internal successors, (3741), 2266 states have internal predecessors, (3741), 516 states have call successors, (516), 28 states have call predecessors, (516), 32 states have return successors, (563), 514 states have call predecessors, (563), 515 states have call successors, (563) [2021-12-28 00:53:21,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2807 states to 2807 states and 4820 transitions. [2021-12-28 00:53:21,234 INFO L78 Accepts]: Start accepts. Automaton has 2807 states and 4820 transitions. Word has length 132 [2021-12-28 00:53:21,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:53:21,234 INFO L470 AbstractCegarLoop]: Abstraction has 2807 states and 4820 transitions. [2021-12-28 00:53:21,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 00:53:21,234 INFO L276 IsEmpty]: Start isEmpty. Operand 2807 states and 4820 transitions. [2021-12-28 00:53:21,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-28 00:53:21,245 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:21,245 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:53:21,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-28 00:53:21,246 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:21,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:21,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1177919247, now seen corresponding path program 1 times [2021-12-28 00:53:21,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:21,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151295361] [2021-12-28 00:53:21,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:21,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:21,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:21,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:21,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:21,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:21,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:21,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:53:21,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:21,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:53:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:21,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:53:21,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:21,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 00:53:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:21,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-28 00:53:21,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:21,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 00:53:21,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:21,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 00:53:21,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:21,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-28 00:53:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:21,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-28 00:53:21,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:21,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-28 00:53:21,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:21,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-28 00:53:21,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:21,342 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:53:21,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:21,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151295361] [2021-12-28 00:53:21,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151295361] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:53:21,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:53:21,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:53:21,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558191271] [2021-12-28 00:53:21,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:53:21,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:53:21,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:21,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:53:21,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:53:21,344 INFO L87 Difference]: Start difference. First operand 2807 states and 4820 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 00:53:22,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:53:22,438 INFO L93 Difference]: Finished difference Result 6790 states and 11887 transitions. [2021-12-28 00:53:22,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:53:22,438 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 133 [2021-12-28 00:53:22,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:53:22,456 INFO L225 Difference]: With dead ends: 6790 [2021-12-28 00:53:22,457 INFO L226 Difference]: Without dead ends: 4433 [2021-12-28 00:53:22,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:53:22,464 INFO L933 BasicCegarLoop]: 653 mSDtfsCounter, 1531 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 592 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1550 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 1597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 592 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-28 00:53:22,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1550 Valid, 1383 Invalid, 1597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [592 Valid, 1005 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-28 00:53:22,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4433 states. [2021-12-28 00:53:22,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4433 to 4322. [2021-12-28 00:53:22,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4322 states, 3528 states have (on average 1.6626984126984128) internal successors, (5866), 3536 states have internal predecessors, (5866), 761 states have call successors, (761), 28 states have call predecessors, (761), 32 states have return successors, (834), 759 states have call predecessors, (834), 760 states have call successors, (834) [2021-12-28 00:53:22,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4322 states to 4322 states and 7461 transitions. [2021-12-28 00:53:22,645 INFO L78 Accepts]: Start accepts. Automaton has 4322 states and 7461 transitions. Word has length 133 [2021-12-28 00:53:22,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:53:22,645 INFO L470 AbstractCegarLoop]: Abstraction has 4322 states and 7461 transitions. [2021-12-28 00:53:22,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 00:53:22,645 INFO L276 IsEmpty]: Start isEmpty. Operand 4322 states and 7461 transitions. [2021-12-28 00:53:22,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-28 00:53:22,658 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:22,658 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:53:22,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-28 00:53:22,658 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:22,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:22,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1715203874, now seen corresponding path program 1 times [2021-12-28 00:53:22,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:22,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635588853] [2021-12-28 00:53:22,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:22,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:22,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:22,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:22,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:22,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:22,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:22,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:22,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:22,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:53:22,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:22,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:53:22,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:22,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:53:22,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:22,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 00:53:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:22,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 00:53:22,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:22,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-28 00:53:22,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:22,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-28 00:53:22,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:22,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 00:53:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:22,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-28 00:53:22,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:22,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-28 00:53:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:22,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-28 00:53:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:22,746 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:53:22,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:22,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635588853] [2021-12-28 00:53:22,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635588853] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:53:22,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:53:22,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:53:22,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669611136] [2021-12-28 00:53:22,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:53:22,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:53:22,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:22,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:53:22,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:53:22,749 INFO L87 Difference]: Start difference. First operand 4322 states and 7461 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 00:53:23,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:53:23,961 INFO L93 Difference]: Finished difference Result 10806 states and 18999 transitions. [2021-12-28 00:53:23,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:53:23,961 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 134 [2021-12-28 00:53:23,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:53:24,034 INFO L225 Difference]: With dead ends: 10806 [2021-12-28 00:53:24,034 INFO L226 Difference]: Without dead ends: 7166 [2021-12-28 00:53:24,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:53:24,042 INFO L933 BasicCegarLoop]: 659 mSDtfsCounter, 1520 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 608 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1539 SdHoareTripleChecker+Valid, 1405 SdHoareTripleChecker+Invalid, 1623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 608 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:53:24,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1539 Valid, 1405 Invalid, 1623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [608 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-28 00:53:24,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7166 states. [2021-12-28 00:53:24,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7166 to 7055. [2021-12-28 00:53:24,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7055 states, 5768 states have (on average 1.6593273231622747) internal successors, (9571), 5776 states have internal predecessors, (9571), 1254 states have call successors, (1254), 28 states have call predecessors, (1254), 32 states have return successors, (1371), 1252 states have call predecessors, (1371), 1253 states have call successors, (1371) [2021-12-28 00:53:24,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7055 states to 7055 states and 12196 transitions. [2021-12-28 00:53:24,349 INFO L78 Accepts]: Start accepts. Automaton has 7055 states and 12196 transitions. Word has length 134 [2021-12-28 00:53:24,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:53:24,350 INFO L470 AbstractCegarLoop]: Abstraction has 7055 states and 12196 transitions. [2021-12-28 00:53:24,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 00:53:24,351 INFO L276 IsEmpty]: Start isEmpty. Operand 7055 states and 12196 transitions. [2021-12-28 00:53:24,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-28 00:53:24,368 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:24,368 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:53:24,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-28 00:53:24,369 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:24,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:24,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1533216467, now seen corresponding path program 1 times [2021-12-28 00:53:24,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:24,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147073819] [2021-12-28 00:53:24,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:24,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:24,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:24,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:24,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:24,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:24,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:53:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:24,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:53:24,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:24,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:53:24,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:24,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 00:53:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:24,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 00:53:24,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:24,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-28 00:53:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:24,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 00:53:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:24,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 00:53:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:24,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-28 00:53:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:24,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 00:53:24,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:24,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 00:53:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:24,453 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:53:24,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:24,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147073819] [2021-12-28 00:53:24,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147073819] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:53:24,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:53:24,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:53:24,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184515627] [2021-12-28 00:53:24,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:53:24,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:53:24,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:24,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:53:24,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:53:24,456 INFO L87 Difference]: Start difference. First operand 7055 states and 12196 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 00:53:25,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:53:25,804 INFO L93 Difference]: Finished difference Result 17946 states and 31571 transitions. [2021-12-28 00:53:25,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:53:25,804 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 135 [2021-12-28 00:53:25,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:53:25,878 INFO L225 Difference]: With dead ends: 17946 [2021-12-28 00:53:25,878 INFO L226 Difference]: Without dead ends: 11950 [2021-12-28 00:53:25,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:53:25,892 INFO L933 BasicCegarLoop]: 667 mSDtfsCounter, 1502 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 1033 mSolverCounterSat, 601 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 1634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 601 IncrementalHoareTripleChecker+Valid, 1033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-28 00:53:25,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1520 Valid, 1398 Invalid, 1634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [601 Valid, 1033 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-28 00:53:25,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11950 states. [2021-12-28 00:53:26,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11950 to 11839. [2021-12-28 00:53:26,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11839 states, 9730 states have (on average 1.6597122302158274) internal successors, (16149), 9738 states have internal predecessors, (16149), 2076 states have call successors, (2076), 28 states have call predecessors, (2076), 32 states have return successors, (2271), 2074 states have call predecessors, (2271), 2075 states have call successors, (2271) [2021-12-28 00:53:26,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11839 states to 11839 states and 20496 transitions. [2021-12-28 00:53:26,384 INFO L78 Accepts]: Start accepts. Automaton has 11839 states and 20496 transitions. Word has length 135 [2021-12-28 00:53:26,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:53:26,384 INFO L470 AbstractCegarLoop]: Abstraction has 11839 states and 20496 transitions. [2021-12-28 00:53:26,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 00:53:26,385 INFO L276 IsEmpty]: Start isEmpty. Operand 11839 states and 20496 transitions. [2021-12-28 00:53:26,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-12-28 00:53:26,412 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:26,412 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:53:26,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-28 00:53:26,413 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:26,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:26,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1363427552, now seen corresponding path program 1 times [2021-12-28 00:53:26,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:26,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222772260] [2021-12-28 00:53:26,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:26,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:26,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:26,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:26,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:26,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:26,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:26,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:26,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:26,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:53:26,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:26,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:53:26,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:26,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:53:26,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:26,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 00:53:26,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:26,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 00:53:26,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:26,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 00:53:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:26,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 00:53:26,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:26,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 00:53:26,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:26,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-28 00:53:26,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:26,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-28 00:53:26,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:26,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-28 00:53:26,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:26,493 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:53:26,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:26,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222772260] [2021-12-28 00:53:26,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222772260] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:53:26,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:53:26,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:53:26,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734816784] [2021-12-28 00:53:26,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:53:26,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:53:26,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:26,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:53:26,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:53:26,495 INFO L87 Difference]: Start difference. First operand 11839 states and 20496 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 00:53:28,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:53:28,053 INFO L93 Difference]: Finished difference Result 28379 states and 49696 transitions. [2021-12-28 00:53:28,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:53:28,053 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 136 [2021-12-28 00:53:28,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:53:28,111 INFO L225 Difference]: With dead ends: 28379 [2021-12-28 00:53:28,111 INFO L226 Difference]: Without dead ends: 18543 [2021-12-28 00:53:28,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:53:28,134 INFO L933 BasicCegarLoop]: 646 mSDtfsCounter, 1533 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 998 mSolverCounterSat, 601 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1551 SdHoareTripleChecker+Valid, 1351 SdHoareTripleChecker+Invalid, 1599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 601 IncrementalHoareTripleChecker+Valid, 998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:53:28,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1551 Valid, 1351 Invalid, 1599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [601 Valid, 998 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-28 00:53:28,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18543 states. [2021-12-28 00:53:28,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18543 to 18432. [2021-12-28 00:53:28,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18432 states, 15120 states have (on average 1.634589947089947) internal successors, (24715), 15128 states have internal predecessors, (24715), 3279 states have call successors, (3279), 28 states have call predecessors, (3279), 32 states have return successors, (3618), 3277 states have call predecessors, (3618), 3278 states have call successors, (3618) [2021-12-28 00:53:28,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18432 states to 18432 states and 31612 transitions. [2021-12-28 00:53:28,891 INFO L78 Accepts]: Start accepts. Automaton has 18432 states and 31612 transitions. Word has length 136 [2021-12-28 00:53:28,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:53:28,892 INFO L470 AbstractCegarLoop]: Abstraction has 18432 states and 31612 transitions. [2021-12-28 00:53:28,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 00:53:28,892 INFO L276 IsEmpty]: Start isEmpty. Operand 18432 states and 31612 transitions. [2021-12-28 00:53:28,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-28 00:53:28,915 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:28,916 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:53:28,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-28 00:53:28,916 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:28,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:28,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1582070284, now seen corresponding path program 1 times [2021-12-28 00:53:28,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:28,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43203235] [2021-12-28 00:53:28,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:28,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:28,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:28,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:28,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:28,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:28,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:28,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:28,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:53:28,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:28,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:53:28,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:28,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:53:28,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:28,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 00:53:28,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:28,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-28 00:53:28,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:28,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-28 00:53:28,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:28,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-28 00:53:28,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:28,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 00:53:28,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:28,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-28 00:53:28,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:28,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-28 00:53:28,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:28,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-28 00:53:28,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:28,990 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:53:28,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:28,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43203235] [2021-12-28 00:53:28,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43203235] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:53:28,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:53:28,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:53:28,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922051487] [2021-12-28 00:53:28,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:53:28,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:53:28,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:28,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:53:28,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:53:28,992 INFO L87 Difference]: Start difference. First operand 18432 states and 31612 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 00:53:31,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:53:31,144 INFO L93 Difference]: Finished difference Result 48801 states and 85200 transitions. [2021-12-28 00:53:31,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:53:31,144 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 137 [2021-12-28 00:53:31,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:53:31,248 INFO L225 Difference]: With dead ends: 48801 [2021-12-28 00:53:31,248 INFO L226 Difference]: Without dead ends: 32979 [2021-12-28 00:53:31,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:53:31,284 INFO L933 BasicCegarLoop]: 675 mSDtfsCounter, 1487 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 590 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 1406 SdHoareTripleChecker+Invalid, 1652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 590 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:53:31,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1505 Valid, 1406 Invalid, 1652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [590 Valid, 1062 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-28 00:53:31,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32979 states. [2021-12-28 00:53:32,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32979 to 32868. [2021-12-28 00:53:32,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32868 states, 27106 states have (on average 1.6314469121227773) internal successors, (44222), 27114 states have internal predecessors, (44222), 5729 states have call successors, (5729), 28 states have call predecessors, (5729), 32 states have return successors, (6342), 5727 states have call predecessors, (6342), 5728 states have call successors, (6342) [2021-12-28 00:53:32,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32868 states to 32868 states and 56293 transitions. [2021-12-28 00:53:32,810 INFO L78 Accepts]: Start accepts. Automaton has 32868 states and 56293 transitions. Word has length 137 [2021-12-28 00:53:32,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:53:32,810 INFO L470 AbstractCegarLoop]: Abstraction has 32868 states and 56293 transitions. [2021-12-28 00:53:32,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 00:53:32,811 INFO L276 IsEmpty]: Start isEmpty. Operand 32868 states and 56293 transitions. [2021-12-28 00:53:32,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-28 00:53:32,842 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:32,843 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:53:32,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-28 00:53:32,843 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:32,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:32,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1440653178, now seen corresponding path program 1 times [2021-12-28 00:53:32,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:32,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678456651] [2021-12-28 00:53:32,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:32,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:32,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:32,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:32,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:32,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:32,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:32,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:32,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:53:32,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:32,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:53:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:32,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:53:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:32,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-28 00:53:32,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:32,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 00:53:32,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:32,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-28 00:53:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:32,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-28 00:53:32,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:32,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 00:53:32,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:32,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-28 00:53:32,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:32,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-28 00:53:32,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:32,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 00:53:32,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:32,938 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:53:32,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:32,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678456651] [2021-12-28 00:53:32,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678456651] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:53:32,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:53:32,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:53:32,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72357360] [2021-12-28 00:53:32,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:53:32,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:53:32,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:32,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:53:32,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:53:32,941 INFO L87 Difference]: Start difference. First operand 32868 states and 56293 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 00:53:35,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:53:35,798 INFO L93 Difference]: Finished difference Result 89698 states and 155834 transitions. [2021-12-28 00:53:35,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:53:35,798 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 138 [2021-12-28 00:53:35,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:53:36,018 INFO L225 Difference]: With dead ends: 89698 [2021-12-28 00:53:36,019 INFO L226 Difference]: Without dead ends: 60316 [2021-12-28 00:53:36,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:53:36,090 INFO L933 BasicCegarLoop]: 657 mSDtfsCounter, 1524 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 1003 mSolverCounterSat, 612 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 1615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 612 IncrementalHoareTripleChecker+Valid, 1003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:53:36,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1544 Valid, 1417 Invalid, 1615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [612 Valid, 1003 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-28 00:53:36,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60316 states. [2021-12-28 00:53:38,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60316 to 60205. [2021-12-28 00:53:38,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60205 states, 49930 states have (on average 1.6271780492689765) internal successors, (81245), 49938 states have internal predecessors, (81245), 10242 states have call successors, (10242), 28 states have call predecessors, (10242), 32 states have return successors, (11387), 10240 states have call predecessors, (11387), 10241 states have call successors, (11387) [2021-12-28 00:53:38,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60205 states to 60205 states and 102874 transitions. [2021-12-28 00:53:38,982 INFO L78 Accepts]: Start accepts. Automaton has 60205 states and 102874 transitions. Word has length 138 [2021-12-28 00:53:38,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:53:38,989 INFO L470 AbstractCegarLoop]: Abstraction has 60205 states and 102874 transitions. [2021-12-28 00:53:38,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 00:53:38,989 INFO L276 IsEmpty]: Start isEmpty. Operand 60205 states and 102874 transitions. [2021-12-28 00:53:39,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-12-28 00:53:39,031 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:39,032 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:53:39,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-28 00:53:39,032 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:39,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:39,032 INFO L85 PathProgramCache]: Analyzing trace with hash -711063828, now seen corresponding path program 1 times [2021-12-28 00:53:39,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:39,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833140149] [2021-12-28 00:53:39,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:39,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:39,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:39,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:39,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:39,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:39,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:39,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:39,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:53:39,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:39,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:53:39,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:39,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:53:39,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:39,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 00:53:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:39,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-28 00:53:39,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:39,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 00:53:39,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:39,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 00:53:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:39,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-28 00:53:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:39,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 00:53:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:39,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-28 00:53:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:39,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-28 00:53:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:39,106 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:53:39,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:39,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833140149] [2021-12-28 00:53:39,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833140149] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:53:39,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:53:39,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 00:53:39,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438563780] [2021-12-28 00:53:39,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:53:39,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 00:53:39,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:39,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 00:53:39,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 00:53:39,108 INFO L87 Difference]: Start difference. First operand 60205 states and 102874 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 00:53:43,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:53:43,041 INFO L93 Difference]: Finished difference Result 112789 states and 196412 transitions. [2021-12-28 00:53:43,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 00:53:43,041 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 139 [2021-12-28 00:53:43,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:53:43,565 INFO L225 Difference]: With dead ends: 112789 [2021-12-28 00:53:43,566 INFO L226 Difference]: Without dead ends: 112574 [2021-12-28 00:53:43,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-12-28 00:53:43,619 INFO L933 BasicCegarLoop]: 654 mSDtfsCounter, 1510 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 625 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1529 SdHoareTripleChecker+Valid, 1385 SdHoareTripleChecker+Invalid, 1633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 625 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-28 00:53:43,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1529 Valid, 1385 Invalid, 1633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [625 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-28 00:53:43,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112574 states. [2021-12-28 00:53:47,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112574 to 112463. [2021-12-28 00:53:47,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112463 states, 93820 states have (on average 1.6217437646557238) internal successors, (152152), 93828 states have internal predecessors, (152152), 18610 states have call successors, (18610), 28 states have call predecessors, (18610), 32 states have return successors, (20801), 18608 states have call predecessors, (20801), 18609 states have call successors, (20801) [2021-12-28 00:53:48,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112463 states to 112463 states and 191563 transitions. [2021-12-28 00:53:48,220 INFO L78 Accepts]: Start accepts. Automaton has 112463 states and 191563 transitions. Word has length 139 [2021-12-28 00:53:48,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:53:48,220 INFO L470 AbstractCegarLoop]: Abstraction has 112463 states and 191563 transitions. [2021-12-28 00:53:48,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 00:53:48,220 INFO L276 IsEmpty]: Start isEmpty. Operand 112463 states and 191563 transitions. [2021-12-28 00:53:48,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-12-28 00:53:48,485 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:53:48,485 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 00:53:48,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-28 00:53:48,485 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:53:48,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:53:48,485 INFO L85 PathProgramCache]: Analyzing trace with hash 737463079, now seen corresponding path program 1 times [2021-12-28 00:53:48,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:53:48,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825634604] [2021-12-28 00:53:48,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:53:48,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:53:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:48,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:53:48,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:48,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:53:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:48,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:53:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:48,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 00:53:48,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:48,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 00:53:48,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:48,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:53:48,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:48,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 00:53:48,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:48,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 00:53:48,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:48,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 00:53:48,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:48,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 00:53:48,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:48,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-28 00:53:48,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:48,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 00:53:48,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:48,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-28 00:53:48,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:48,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-28 00:53:48,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:53:48,700 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-28 00:53:48,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:53:48,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825634604] [2021-12-28 00:53:48,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825634604] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:53:48,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:53:48,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-12-28 00:53:48,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729190294] [2021-12-28 00:53:48,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:53:48,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-28 00:53:48,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:53:48,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-28 00:53:48,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-12-28 00:53:48,702 INFO L87 Difference]: Start difference. First operand 112463 states and 191563 transitions. Second operand has 18 states, 16 states have (on average 6.0) internal successors, (96), 12 states have internal predecessors, (96), 6 states have call successors, (17), 7 states have call predecessors, (17), 4 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14)