./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7ed16a2a74d5e33f66ab9b575b27ed24f9a6964adc1478fcc08a5f7b11595b14 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:02:17,565 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:02:17,628 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 16:02:17,632 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:02:17,633 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:02:17,656 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:02:17,656 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:02:17,657 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:02:17,657 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:02:17,658 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:02:17,658 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:02:17,659 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:02:17,659 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:02:17,660 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 16:02:17,660 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:02:17,661 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:02:17,661 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 16:02:17,662 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 16:02:17,662 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:02:17,663 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 16:02:17,664 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 16:02:17,665 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 16:02:17,665 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:02:17,666 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:02:17,666 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:02:17,667 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 16:02:17,667 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:02:17,668 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:02:17,668 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:02:17,668 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:02:17,669 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:02:17,669 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:02:17,669 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:02:17,670 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:02:17,670 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:02:17,670 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:02:17,670 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:02:17,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:02:17,671 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:02:17,671 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:02:17,671 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:02:17,672 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 16:02:17,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 16:02:17,672 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:02:17,672 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:02:17,672 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:02:17,673 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:02:17,673 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ed16a2a74d5e33f66ab9b575b27ed24f9a6964adc1478fcc08a5f7b11595b14 [2023-12-02 16:02:17,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:02:17,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:02:17,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:02:17,905 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:02:17,906 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:02:17,907 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec0_product35.cil.c [2023-12-02 16:02:20,712 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:02:21,003 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:02:21,003 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/sv-benchmarks/c/product-lines/email_spec0_product35.cil.c [2023-12-02 16:02:21,027 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/data/cb92a0bcf/5b37f5faa6b14778bfecca5262917a1e/FLAG6a5bd2411 [2023-12-02 16:02:21,042 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/data/cb92a0bcf/5b37f5faa6b14778bfecca5262917a1e [2023-12-02 16:02:21,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:02:21,046 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:02:21,048 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:02:21,048 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:02:21,053 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:02:21,054 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:02:21" (1/1) ... [2023-12-02 16:02:21,055 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dcbed9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:21, skipping insertion in model container [2023-12-02 16:02:21,056 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:02:21" (1/1) ... [2023-12-02 16:02:21,138 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:02:21,376 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/sv-benchmarks/c/product-lines/email_spec0_product35.cil.c[5573,5586] [2023-12-02 16:02:21,700 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:02:21,715 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:02:21,725 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] [2023-12-02 16:02:21,726 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [66] [2023-12-02 16:02:21,726 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [225] [2023-12-02 16:02:21,726 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [234] [2023-12-02 16:02:21,727 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [600] [2023-12-02 16:02:21,727 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [620] [2023-12-02 16:02:21,727 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [658] [2023-12-02 16:02:21,727 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1108] [2023-12-02 16:02:21,727 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2179] [2023-12-02 16:02:21,728 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2412] [2023-12-02 16:02:21,728 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2710] [2023-12-02 16:02:21,738 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/sv-benchmarks/c/product-lines/email_spec0_product35.cil.c[5573,5586] [2023-12-02 16:02:21,854 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:02:21,883 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:02:21,890 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:02:21,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:21 WrapperNode [2023-12-02 16:02:21,891 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:02:21,892 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:02:21,892 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:02:21,892 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:02:21,897 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:21" (1/1) ... [2023-12-02 16:02:21,928 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:21" (1/1) ... [2023-12-02 16:02:21,982 INFO L138 Inliner]: procedures = 137, calls = 246, calls flagged for inlining = 66, calls inlined = 63, statements flattened = 1167 [2023-12-02 16:02:21,983 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:02:21,983 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:02:21,984 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:02:21,984 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:02:21,993 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:21" (1/1) ... [2023-12-02 16:02:21,993 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:21" (1/1) ... [2023-12-02 16:02:22,003 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:21" (1/1) ... [2023-12-02 16:02:22,004 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:21" (1/1) ... [2023-12-02 16:02:22,034 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:21" (1/1) ... [2023-12-02 16:02:22,047 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:21" (1/1) ... [2023-12-02 16:02:22,054 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:21" (1/1) ... [2023-12-02 16:02:22,061 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:21" (1/1) ... [2023-12-02 16:02:22,072 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:02:22,073 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:02:22,073 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:02:22,073 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:02:22,074 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:21" (1/1) ... [2023-12-02 16:02:22,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:02:22,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:02:22,112 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:02:22,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:02:22,152 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-02 16:02:22,153 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-02 16:02:22,153 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-02 16:02:22,153 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-02 16:02:22,153 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-02 16:02:22,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-02 16:02:22,153 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-02 16:02:22,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-02 16:02:22,154 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-02 16:02:22,154 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-02 16:02:22,154 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 16:02:22,154 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 16:02:22,154 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-12-02 16:02:22,155 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-12-02 16:02:22,155 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 16:02:22,155 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 16:02:22,155 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-02 16:02:22,155 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-02 16:02:22,155 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 16:02:22,155 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 16:02:22,156 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-02 16:02:22,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-02 16:02:22,156 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-02 16:02:22,156 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-02 16:02:22,156 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 16:02:22,156 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 16:02:22,157 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 16:02:22,157 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 16:02:22,157 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 16:02:22,157 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-02 16:02:22,157 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-02 16:02:22,157 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 16:02:22,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 16:02:22,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:02:22,158 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-02 16:02:22,158 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-02 16:02:22,158 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-02 16:02:22,158 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-02 16:02:22,158 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-02 16:02:22,159 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-02 16:02:22,159 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 16:02:22,159 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 16:02:22,159 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 16:02:22,159 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 16:02:22,159 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 16:02:22,159 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 16:02:22,160 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-02 16:02:22,160 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-02 16:02:22,160 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 16:02:22,160 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 16:02:22,160 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-02 16:02:22,160 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-02 16:02:22,160 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 16:02:22,161 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 16:02:22,161 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 16:02:22,161 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 16:02:22,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 16:02:22,161 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 16:02:22,161 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 16:02:22,161 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-02 16:02:22,161 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-02 16:02:22,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:02:22,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:02:22,362 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:02:22,364 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:02:23,223 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:02:23,812 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:02:23,812 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 16:02:23,814 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:02:23 BoogieIcfgContainer [2023-12-02 16:02:23,814 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:02:23,817 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:02:23,817 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:02:23,820 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:02:23,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:02:21" (1/3) ... [2023-12-02 16:02:23,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd6955f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:02:23, skipping insertion in model container [2023-12-02 16:02:23,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:02:21" (2/3) ... [2023-12-02 16:02:23,822 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd6955f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:02:23, skipping insertion in model container [2023-12-02 16:02:23,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:02:23" (3/3) ... [2023-12-02 16:02:23,823 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product35.cil.c [2023-12-02 16:02:23,843 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:02:23,843 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 16:02:23,900 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:02:23,906 INFO L357 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@29f7b632, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:02:23,907 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 16:02:23,912 INFO L276 IsEmpty]: Start isEmpty. Operand has 239 states, 134 states have (on average 1.2835820895522387) internal successors, (172), 139 states have internal predecessors, (172), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2023-12-02 16:02:23,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-02 16:02:23,932 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:02:23,933 INFO L195 NwaCegarLoop]: 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] [2023-12-02 16:02:23,933 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:02:23,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:02:23,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1859169453, now seen corresponding path program 1 times [2023-12-02 16:02:23,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:02:23,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174961918] [2023-12-02 16:02:23,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:02:23,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:02:24,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:02:24,331 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-02 16:02:24,331 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:02:24,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174961918] [2023-12-02 16:02:24,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174961918] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:02:24,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:02:24,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:02:24,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260568142] [2023-12-02 16:02:24,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:02:24,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 16:02:24,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:02:24,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 16:02:24,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 16:02:24,373 INFO L87 Difference]: Start difference. First operand has 239 states, 134 states have (on average 1.2835820895522387) internal successors, (172), 139 states have internal predecessors, (172), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-02 16:02:24,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:02:24,525 INFO L93 Difference]: Finished difference Result 386 states and 511 transitions. [2023-12-02 16:02:24,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 16:02:24,528 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 112 [2023-12-02 16:02:24,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:02:24,539 INFO L225 Difference]: With dead ends: 386 [2023-12-02 16:02:24,539 INFO L226 Difference]: Without dead ends: 236 [2023-12-02 16:02:24,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 16:02:24,549 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:02:24,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 270 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:02:24,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2023-12-02 16:02:24,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2023-12-02 16:02:24,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 132 states have (on average 1.2575757575757576) internal successors, (166), 136 states have internal predecessors, (166), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-02 16:02:24,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 313 transitions. [2023-12-02 16:02:24,609 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 313 transitions. Word has length 112 [2023-12-02 16:02:24,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:02:24,611 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 313 transitions. [2023-12-02 16:02:24,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-02 16:02:24,612 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 313 transitions. [2023-12-02 16:02:24,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-02 16:02:24,616 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:02:24,617 INFO L195 NwaCegarLoop]: 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] [2023-12-02 16:02:24,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 16:02:24,617 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:02:24,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:02:24,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1087211129, now seen corresponding path program 1 times [2023-12-02 16:02:24,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:02:24,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736733807] [2023-12-02 16:02:24,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:02:24,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:02:24,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:02:24,976 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-02 16:02:24,976 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:02:24,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736733807] [2023-12-02 16:02:24,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736733807] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:02:24,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:02:24,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:02:24,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249408972] [2023-12-02 16:02:24,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:02:24,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:02:24,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:02:24,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:02:24,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:02:24,980 INFO L87 Difference]: Start difference. First operand 236 states and 313 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-02 16:02:25,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:02:25,122 INFO L93 Difference]: Finished difference Result 382 states and 496 transitions. [2023-12-02 16:02:25,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:02:25,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 113 [2023-12-02 16:02:25,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:02:25,126 INFO L225 Difference]: With dead ends: 382 [2023-12-02 16:02:25,126 INFO L226 Difference]: Without dead ends: 238 [2023-12-02 16:02:25,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:02:25,129 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 0 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:02:25,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 533 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:02:25,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-12-02 16:02:25,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2023-12-02 16:02:25,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 134 states have (on average 1.2537313432835822) internal successors, (168), 138 states have internal predecessors, (168), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-02 16:02:25,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 315 transitions. [2023-12-02 16:02:25,155 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 315 transitions. Word has length 113 [2023-12-02 16:02:25,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:02:25,155 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 315 transitions. [2023-12-02 16:02:25,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-02 16:02:25,156 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 315 transitions. [2023-12-02 16:02:25,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-02 16:02:25,159 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:02:25,159 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 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] [2023-12-02 16:02:25,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 16:02:25,159 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:02:25,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:02:25,160 INFO L85 PathProgramCache]: Analyzing trace with hash -517531871, now seen corresponding path program 1 times [2023-12-02 16:02:25,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:02:25,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859109941] [2023-12-02 16:02:25,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:02:25,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:02:25,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:02:25,339 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-02 16:02:25,339 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:02:25,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859109941] [2023-12-02 16:02:25,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859109941] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:02:25,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:02:25,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:02:25,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580731919] [2023-12-02 16:02:25,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:02:25,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:02:25,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:02:25,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:02:25,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:02:25,342 INFO L87 Difference]: Start difference. First operand 238 states and 315 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-02 16:02:25,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:02:25,487 INFO L93 Difference]: Finished difference Result 511 states and 697 transitions. [2023-12-02 16:02:25,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:02:25,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 118 [2023-12-02 16:02:25,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:02:25,491 INFO L225 Difference]: With dead ends: 511 [2023-12-02 16:02:25,491 INFO L226 Difference]: Without dead ends: 291 [2023-12-02 16:02:25,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:02:25,494 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 59 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:02:25,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 540 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:02:25,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2023-12-02 16:02:25,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 286. [2023-12-02 16:02:25,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 168 states have (on average 1.3273809523809523) internal successors, (223), 172 states have internal predecessors, (223), 88 states have call successors, (88), 29 states have call predecessors, (88), 29 states have return successors, (87), 86 states have call predecessors, (87), 87 states have call successors, (87) [2023-12-02 16:02:25,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 398 transitions. [2023-12-02 16:02:25,523 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 398 transitions. Word has length 118 [2023-12-02 16:02:25,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:02:25,524 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 398 transitions. [2023-12-02 16:02:25,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-02 16:02:25,524 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 398 transitions. [2023-12-02 16:02:25,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-02 16:02:25,528 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:02:25,528 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 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] [2023-12-02 16:02:25,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 16:02:25,528 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:02:25,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:02:25,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1744174685, now seen corresponding path program 1 times [2023-12-02 16:02:25,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:02:25,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899393887] [2023-12-02 16:02:25,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:02:25,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:02:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:02:25,722 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-02 16:02:25,722 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:02:25,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899393887] [2023-12-02 16:02:25,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899393887] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:02:25,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033635291] [2023-12-02 16:02:25,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:02:25,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:02:25,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:02:25,725 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:02:25,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 16:02:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:02:26,139 INFO L262 TraceCheckSpWp]: Trace formula consists of 1264 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:02:26,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:02:26,215 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-02 16:02:26,215 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:02:26,308 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-02 16:02:26,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033635291] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:02:26,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [312883765] [2023-12-02 16:02:26,330 INFO L159 IcfgInterpreter]: Started Sifa with 92 locations of interest [2023-12-02 16:02:26,330 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:02:26,333 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:02:26,339 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:02:26,339 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:03:09,287 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 16:03:09,466 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-12-02 16:03:09,626 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:04:06,203 WARN L293 SmtUtils]: Spent 9.49s on a formula simplification. DAG size of input: 510 DAG size of output: 510 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:04:21,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [312883765] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:04:21,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:04:21,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 16:04:21,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704535219] [2023-12-02 16:04:21,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:04:21,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 16:04:21,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:04:21,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 16:04:21,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 16:04:21,538 INFO L87 Difference]: Start difference. First operand 286 states and 398 transitions. Second operand has 24 states, 16 states have (on average 3.5) internal successors, (56), 15 states have internal predecessors, (56), 7 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2023-12-02 16:04:33,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:04:33,418 INFO L93 Difference]: Finished difference Result 619 states and 896 transitions. [2023-12-02 16:04:33,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 16:04:33,421 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 3.5) internal successors, (56), 15 states have internal predecessors, (56), 7 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) Word has length 119 [2023-12-02 16:04:33,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:04:33,425 INFO L225 Difference]: With dead ends: 619 [2023-12-02 16:04:33,425 INFO L226 Difference]: Without dead ends: 351 [2023-12-02 16:04:33,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 330 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 71.9s TimeCoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 16:04:33,428 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 58 mSDsluCounter, 3998 mSDsCounter, 0 mSdLazyCounter, 2543 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 4283 SdHoareTripleChecker+Invalid, 2552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2023-12-02 16:04:33,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 4283 Invalid, 2552 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2543 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2023-12-02 16:04:33,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-12-02 16:04:33,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 309. [2023-12-02 16:04:33,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 190 states have (on average 1.3473684210526315) internal successors, (256), 194 states have internal predecessors, (256), 88 states have call successors, (88), 30 states have call predecessors, (88), 30 states have return successors, (87), 86 states have call predecessors, (87), 87 states have call successors, (87) [2023-12-02 16:04:33,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 431 transitions. [2023-12-02 16:04:33,531 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 431 transitions. Word has length 119 [2023-12-02 16:04:33,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:04:33,532 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 431 transitions. [2023-12-02 16:04:33,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 3.5) internal successors, (56), 15 states have internal predecessors, (56), 7 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2023-12-02 16:04:33,532 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 431 transitions. [2023-12-02 16:04:33,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-02 16:04:33,535 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:04:33,536 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 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] [2023-12-02 16:04:33,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 16:04:33,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:04:33,745 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:04:33,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:04:33,745 INFO L85 PathProgramCache]: Analyzing trace with hash 436846669, now seen corresponding path program 1 times [2023-12-02 16:04:33,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:04:33,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619681803] [2023-12-02 16:04:33,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:04:33,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:04:33,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:04:33,839 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 16:04:33,839 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:04:33,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619681803] [2023-12-02 16:04:33,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619681803] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:04:33,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:04:33,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:04:33,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295290513] [2023-12-02 16:04:33,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:04:33,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:04:33,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:04:33,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:04:33,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:04:33,842 INFO L87 Difference]: Start difference. First operand 309 states and 431 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-02 16:04:34,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:04:34,078 INFO L93 Difference]: Finished difference Result 721 states and 1042 transitions. [2023-12-02 16:04:34,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:04:34,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 124 [2023-12-02 16:04:34,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:04:34,082 INFO L225 Difference]: With dead ends: 721 [2023-12-02 16:04:34,082 INFO L226 Difference]: Without dead ends: 436 [2023-12-02 16:04:34,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:04:34,084 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 57 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:04:34,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 549 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:04:34,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2023-12-02 16:04:34,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 431. [2023-12-02 16:04:34,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 281 states have (on average 1.4092526690391458) internal successors, (396), 285 states have internal predecessors, (396), 119 states have call successors, (119), 30 states have call predecessors, (119), 30 states have return successors, (118), 117 states have call predecessors, (118), 118 states have call successors, (118) [2023-12-02 16:04:34,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 633 transitions. [2023-12-02 16:04:34,192 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 633 transitions. Word has length 124 [2023-12-02 16:04:34,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:04:34,193 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 633 transitions. [2023-12-02 16:04:34,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-02 16:04:34,193 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 633 transitions. [2023-12-02 16:04:34,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-02 16:04:34,195 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:04:34,196 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 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] [2023-12-02 16:04:34,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 16:04:34,196 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:04:34,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:04:34,197 INFO L85 PathProgramCache]: Analyzing trace with hash 453513760, now seen corresponding path program 1 times [2023-12-02 16:04:34,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:04:34,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97545026] [2023-12-02 16:04:34,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:04:34,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:04:34,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:04:34,377 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 16:04:34,377 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:04:34,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97545026] [2023-12-02 16:04:34,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97545026] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:04:34,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676568704] [2023-12-02 16:04:34,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:04:34,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:04:34,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:04:34,379 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:04:34,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 16:04:34,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:04:34,753 INFO L262 TraceCheckSpWp]: Trace formula consists of 1236 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:04:34,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:04:34,786 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 16:04:34,787 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:04:34,864 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 16:04:34,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676568704] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:04:34,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [947860918] [2023-12-02 16:04:34,870 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2023-12-02 16:04:34,870 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:04:34,871 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:04:34,871 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:04:34,871 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:05:34,204 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 16:05:34,365 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 246 for LOIs [2023-12-02 16:05:34,600 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:06:31,901 WARN L293 SmtUtils]: Spent 9.59s on a formula simplification. DAG size of input: 513 DAG size of output: 513 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:07:02,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [947860918] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:07:02,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:07:02,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 16:07:02,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220760695] [2023-12-02 16:07:02,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:07:02,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 16:07:02,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:07:02,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 16:07:02,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 16:07:02,551 INFO L87 Difference]: Start difference. First operand 431 states and 633 transitions. Second operand has 28 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 8 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2023-12-02 16:07:16,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:07:16,080 INFO L93 Difference]: Finished difference Result 880 states and 1323 transitions. [2023-12-02 16:07:16,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 16:07:16,080 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 8 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) Word has length 114 [2023-12-02 16:07:16,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:07:16,084 INFO L225 Difference]: With dead ends: 880 [2023-12-02 16:07:16,084 INFO L226 Difference]: Without dead ends: 512 [2023-12-02 16:07:16,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 311 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 87.9s TimeCoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 16:07:16,086 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 76 mSDsluCounter, 3973 mSDsCounter, 0 mSdLazyCounter, 2830 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 4221 SdHoareTripleChecker+Invalid, 2838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2023-12-02 16:07:16,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 4221 Invalid, 2838 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2830 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time] [2023-12-02 16:07:16,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2023-12-02 16:07:16,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 445. [2023-12-02 16:07:16,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 293 states have (on average 1.4095563139931742) internal successors, (413), 297 states have internal predecessors, (413), 120 states have call successors, (120), 31 states have call predecessors, (120), 31 states have return successors, (119), 118 states have call predecessors, (119), 119 states have call successors, (119) [2023-12-02 16:07:16,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 652 transitions. [2023-12-02 16:07:16,214 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 652 transitions. Word has length 114 [2023-12-02 16:07:16,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:07:16,214 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 652 transitions. [2023-12-02 16:07:16,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 8 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2023-12-02 16:07:16,214 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 652 transitions. [2023-12-02 16:07:16,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-02 16:07:16,218 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:07:16,218 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 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, 1, 1, 1] [2023-12-02 16:07:16,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-02 16:07:16,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:07:16,421 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:07:16,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:07:16,421 INFO L85 PathProgramCache]: Analyzing trace with hash 2006395068, now seen corresponding path program 1 times [2023-12-02 16:07:16,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:07:16,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729548097] [2023-12-02 16:07:16,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:07:16,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:07:16,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:07:16,560 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-02 16:07:16,560 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:07:16,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729548097] [2023-12-02 16:07:16,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729548097] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:07:16,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112887136] [2023-12-02 16:07:16,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:07:16,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:07:16,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:07:16,562 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:07:16,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 16:07:16,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:07:16,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 1369 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:07:16,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:07:16,965 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-02 16:07:16,966 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:07:17,047 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-02 16:07:17,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112887136] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:07:17,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [973900342] [2023-12-02 16:07:17,051 INFO L159 IcfgInterpreter]: Started Sifa with 101 locations of interest [2023-12-02 16:07:17,052 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:07:17,052 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:07:17,052 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:07:17,053 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:08:43,881 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 16:08:44,039 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 557 for LOIs [2023-12-02 16:08:45,917 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 566 for LOIs [2023-12-02 16:08:47,737 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 481 for LOIs [2023-12-02 16:08:48,409 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-12-02 16:08:48,568 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:09:47,143 WARN L293 SmtUtils]: Spent 11.31s on a formula simplification. DAG size of input: 594 DAG size of output: 589 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:09:59,012 WARN L293 SmtUtils]: Spent 11.48s on a formula simplification. DAG size of input: 595 DAG size of output: 589 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:10:48,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [973900342] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:10:48,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:10:48,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 16:10:48,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203605445] [2023-12-02 16:10:48,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:10:48,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 16:10:48,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:10:48,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 16:10:48,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 16:10:48,710 INFO L87 Difference]: Start difference. First operand 445 states and 652 transitions. Second operand has 33 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 18 states have internal predecessors, (59), 10 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (25), 10 states have call predecessors, (25), 10 states have call successors, (25) [2023-12-02 16:11:14,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:11:14,002 INFO L93 Difference]: Finished difference Result 905 states and 1358 transitions. [2023-12-02 16:11:14,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 16:11:14,003 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 18 states have internal predecessors, (59), 10 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (25), 10 states have call predecessors, (25), 10 states have call successors, (25) Word has length 128 [2023-12-02 16:11:14,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:11:14,006 INFO L225 Difference]: With dead ends: 905 [2023-12-02 16:11:14,006 INFO L226 Difference]: Without dead ends: 537 [2023-12-02 16:11:14,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 120.1s TimeCoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 16:11:14,009 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 90 mSDsluCounter, 4450 mSDsCounter, 0 mSdLazyCounter, 3987 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 4699 SdHoareTripleChecker+Invalid, 3996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.9s IncrementalHoareTripleChecker+Time [2023-12-02 16:11:14,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 4699 Invalid, 3996 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 3987 Invalid, 0 Unknown, 0 Unchecked, 24.9s Time] [2023-12-02 16:11:14,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2023-12-02 16:11:14,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 481. [2023-12-02 16:11:14,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 323 states have (on average 1.4086687306501549) internal successors, (455), 327 states have internal predecessors, (455), 123 states have call successors, (123), 34 states have call predecessors, (123), 34 states have return successors, (122), 121 states have call predecessors, (122), 122 states have call successors, (122) [2023-12-02 16:11:14,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 700 transitions. [2023-12-02 16:11:14,209 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 700 transitions. Word has length 128 [2023-12-02 16:11:14,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:11:14,209 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 700 transitions. [2023-12-02 16:11:14,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 18 states have internal predecessors, (59), 10 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (25), 10 states have call predecessors, (25), 10 states have call successors, (25) [2023-12-02 16:11:14,210 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 700 transitions. [2023-12-02 16:11:14,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-02 16:11:14,213 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:11:14,213 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 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, 1, 1] [2023-12-02 16:11:14,221 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 16:11:14,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-12-02 16:11:14,414 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:11:14,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:11:14,414 INFO L85 PathProgramCache]: Analyzing trace with hash 497488875, now seen corresponding path program 1 times [2023-12-02 16:11:14,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:11:14,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560078329] [2023-12-02 16:11:14,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:11:14,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:11:14,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:11:14,582 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-02 16:11:14,582 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:11:14,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560078329] [2023-12-02 16:11:14,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560078329] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:11:14,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241179821] [2023-12-02 16:11:14,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:11:14,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:11:14,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:11:14,584 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:11:14,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 16:11:14,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:11:14,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 1288 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:11:14,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:11:14,967 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-02 16:11:14,968 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:11:15,044 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-02 16:11:15,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241179821] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:11:15,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [28928136] [2023-12-02 16:11:15,048 INFO L159 IcfgInterpreter]: Started Sifa with 100 locations of interest [2023-12-02 16:11:15,048 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:11:15,049 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:11:15,049 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:11:15,049 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:12:13,857 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 16:12:14,020 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-12-02 16:12:14,177 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:13:11,315 WARN L293 SmtUtils]: Spent 9.39s on a formula simplification. DAG size of input: 518 DAG size of output: 518 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:13:58,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [28928136] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:13:58,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:13:58,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [4, 4, 4] total 37 [2023-12-02 16:13:58,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709670545] [2023-12-02 16:13:58,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:13:58,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 16:13:58,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:13:58,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 16:13:58,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 16:13:58,083 INFO L87 Difference]: Start difference. First operand 481 states and 700 transitions. Second operand has 32 states, 24 states have (on average 2.6666666666666665) internal successors, (64), 23 states have internal predecessors, (64), 7 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2023-12-02 16:14:10,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:14:10,658 INFO L93 Difference]: Finished difference Result 919 states and 1373 transitions. [2023-12-02 16:14:10,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 16:14:10,658 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 24 states have (on average 2.6666666666666665) internal successors, (64), 23 states have internal predecessors, (64), 7 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) Word has length 127 [2023-12-02 16:14:10,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:14:10,662 INFO L225 Difference]: With dead ends: 919 [2023-12-02 16:14:10,662 INFO L226 Difference]: Without dead ends: 551 [2023-12-02 16:14:10,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 346 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 103.9s TimeCoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 16:14:10,665 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 89 mSDsluCounter, 4324 mSDsCounter, 0 mSdLazyCounter, 2781 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 4569 SdHoareTripleChecker+Invalid, 2789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2023-12-02 16:14:10,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 4569 Invalid, 2789 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2781 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2023-12-02 16:14:10,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2023-12-02 16:14:10,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 501. [2023-12-02 16:14:10,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 343 states have (on average 1.41399416909621) internal successors, (485), 347 states have internal predecessors, (485), 123 states have call successors, (123), 34 states have call predecessors, (123), 34 states have return successors, (122), 121 states have call predecessors, (122), 122 states have call successors, (122) [2023-12-02 16:14:10,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 730 transitions. [2023-12-02 16:14:10,955 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 730 transitions. Word has length 127 [2023-12-02 16:14:10,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:14:10,956 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 730 transitions. [2023-12-02 16:14:10,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 24 states have (on average 2.6666666666666665) internal successors, (64), 23 states have internal predecessors, (64), 7 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2023-12-02 16:14:10,956 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 730 transitions. [2023-12-02 16:14:10,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-02 16:14:10,959 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:14:10,959 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 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] [2023-12-02 16:14:10,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 16:14:11,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-02 16:14:11,166 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:14:11,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:14:11,167 INFO L85 PathProgramCache]: Analyzing trace with hash -822352197, now seen corresponding path program 1 times [2023-12-02 16:14:11,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:14:11,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291514694] [2023-12-02 16:14:11,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:11,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:14:11,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:14:11,297 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 16:14:11,297 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:14:11,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291514694] [2023-12-02 16:14:11,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291514694] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:14:11,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411148797] [2023-12-02 16:14:11,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:11,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:14:11,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:14:11,299 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:14:11,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7c2b93-a924-4bb9-8372-1ab37e191d17/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 16:14:11,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:14:11,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 1249 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 16:14:11,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:14:11,673 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 16:14:11,673 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:14:11,745 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 16:14:11,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411148797] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:14:11,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [335454002] [2023-12-02 16:14:11,748 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2023-12-02 16:14:11,748 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:14:11,749 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:14:11,749 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:14:11,749 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:15:04,153 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 16:15:04,313 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 256 for LOIs [2023-12-02 16:15:08,379 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 230 for LOIs [2023-12-02 16:15:08,548 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 254 for LOIs [2023-12-02 16:15:12,922 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 264 for LOIs [2023-12-02 16:15:29,834 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 263 for LOIs [2023-12-02 16:15:30,792 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 258 for LOIs [2023-12-02 16:15:32,705 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 258 for LOIs [2023-12-02 16:15:32,965 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 236 for LOIs [2023-12-02 16:15:33,113 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 227 for LOIs [2023-12-02 16:15:33,262 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 224 for LOIs [2023-12-02 16:15:33,445 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 228 for LOIs [2023-12-02 16:15:33,590 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 229 for LOIs [2023-12-02 16:15:33,762 INFO L180 IcfgInterpreter]: Interpretation finished