./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product14.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E --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 7bf93f828cd20929ce9c5f311b0e320b3840eed4f400e7f2f8e12c9cdbceb4d2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:09:44,252 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:09:44,355 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 05:09:44,366 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:09:44,366 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:09:44,417 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:09:44,420 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:09:44,420 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:09:44,421 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:09:44,421 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:09:44,423 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:09:44,423 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:09:44,423 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:09:44,423 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:09:44,423 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:09:44,423 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:09:44,423 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:09:44,424 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:09:44,424 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:09:44,424 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:09:44,424 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:09:44,424 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:09:44,424 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:09:44,425 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:09:44,425 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:09:44,425 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:09:44,425 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:09:44,425 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:09:44,425 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:09:44,425 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:09:44,425 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:09:44,426 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:09:44,426 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:09:44,426 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:09:44,426 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:09:44,427 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:09:44,427 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:09:44,427 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:09:44,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:09:44,427 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:09:44,427 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:09:44,428 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:09:44,428 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:09:44,428 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:09:44,428 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:09:44,428 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:09:44,428 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:09:44,429 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E 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 -> 7bf93f828cd20929ce9c5f311b0e320b3840eed4f400e7f2f8e12c9cdbceb4d2 [2024-11-14 05:09:44,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:09:44,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:09:44,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:09:44,855 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:09:44,856 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:09:44,859 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/product-lines/email_spec1_product14.cil.c Unable to find full path for "g++" [2024-11-14 05:09:47,053 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:09:47,521 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:09:47,522 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/sv-benchmarks/c/product-lines/email_spec1_product14.cil.c [2024-11-14 05:09:47,558 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/data/e50261159/b3c8feee23854aff8d759902130d8d8c/FLAG9faafbc07 [2024-11-14 05:09:47,582 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/data/e50261159/b3c8feee23854aff8d759902130d8d8c [2024-11-14 05:09:47,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:09:47,590 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:09:47,591 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:09:47,592 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:09:47,597 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:09:47,598 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:09:47" (1/1) ... [2024-11-14 05:09:47,600 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d5de8ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:09:47, skipping insertion in model container [2024-11-14 05:09:47,600 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:09:47" (1/1) ... [2024-11-14 05:09:47,690 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:09:48,383 WARN L250 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_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/sv-benchmarks/c/product-lines/email_spec1_product14.cil.c[62671,62684] [2024-11-14 05:09:48,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:09:48,404 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:09:48,418 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [48] [2024-11-14 05:09:48,420 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"AddressBookEncrypt_spec.i","") [1128] [2024-11-14 05:09:48,420 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1170] [2024-11-14 05:09:48,420 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1456] [2024-11-14 05:09:48,420 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1562] [2024-11-14 05:09:48,420 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1579] [2024-11-14 05:09:48,420 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1617] [2024-11-14 05:09:48,421 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1983] [2024-11-14 05:09:48,421 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2208] [2024-11-14 05:09:48,421 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2486] [2024-11-14 05:09:48,421 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2889] [2024-11-14 05:09:48,587 WARN L250 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_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/sv-benchmarks/c/product-lines/email_spec1_product14.cil.c[62671,62684] [2024-11-14 05:09:48,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:09:48,625 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:09:48,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:09:48 WrapperNode [2024-11-14 05:09:48,626 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:09:48,628 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:09:48,628 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:09:48,628 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:09:48,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:09:48" (1/1) ... [2024-11-14 05:09:48,677 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:09:48" (1/1) ... [2024-11-14 05:09:48,767 INFO L138 Inliner]: procedures = 125, calls = 189, calls flagged for inlining = 50, calls inlined = 42, statements flattened = 889 [2024-11-14 05:09:48,771 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:09:48,771 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:09:48,771 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:09:48,771 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:09:48,781 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:09:48" (1/1) ... [2024-11-14 05:09:48,781 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:09:48" (1/1) ... [2024-11-14 05:09:48,787 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:09:48" (1/1) ... [2024-11-14 05:09:48,787 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:09:48" (1/1) ... [2024-11-14 05:09:48,812 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:09:48" (1/1) ... [2024-11-14 05:09:48,831 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:09:48" (1/1) ... [2024-11-14 05:09:48,840 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:09:48" (1/1) ... [2024-11-14 05:09:48,847 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:09:48" (1/1) ... [2024-11-14 05:09:48,862 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:09:48,863 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:09:48,866 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:09:48,866 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:09:48,867 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:09:48" (1/1) ... [2024-11-14 05:09:48,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:09:48,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:09:48,915 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:09:48,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:09:48,955 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-14 05:09:48,955 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-14 05:09:48,955 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-14 05:09:48,955 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-14 05:09:48,956 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-14 05:09:48,956 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-14 05:09:48,956 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-14 05:09:48,956 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-14 05:09:48,957 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-14 05:09:48,957 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-14 05:09:48,957 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-14 05:09:48,957 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-14 05:09:48,958 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-14 05:09:48,958 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-14 05:09:48,958 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-14 05:09:48,958 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-14 05:09:48,959 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-14 05:09:48,960 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-14 05:09:48,960 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-14 05:09:48,960 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-14 05:09:48,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:09:48,962 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-14 05:09:48,962 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-14 05:09:48,962 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-14 05:09:48,962 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-14 05:09:48,962 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-14 05:09:48,962 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-14 05:09:48,962 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-14 05:09:48,962 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-14 05:09:48,962 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2024-11-14 05:09:48,963 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2024-11-14 05:09:48,963 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-14 05:09:48,963 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-14 05:09:48,963 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-14 05:09:48,963 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-14 05:09:48,963 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-14 05:09:48,963 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-14 05:09:48,963 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-14 05:09:48,963 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-14 05:09:48,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:09:48,963 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-14 05:09:48,963 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-14 05:09:48,964 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-14 05:09:48,964 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-14 05:09:48,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:09:48,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:09:49,230 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:09:49,234 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:09:50,556 INFO L? ?]: Removed 440 outVars from TransFormulas that were not future-live. [2024-11-14 05:09:50,556 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:09:51,582 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:09:51,584 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:09:51,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:09:51 BoogieIcfgContainer [2024-11-14 05:09:51,585 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:09:51,588 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:09:51,589 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:09:51,596 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:09:51,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:09:47" (1/3) ... [2024-11-14 05:09:51,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ddea10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:09:51, skipping insertion in model container [2024-11-14 05:09:51,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:09:48" (2/3) ... [2024-11-14 05:09:51,599 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ddea10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:09:51, skipping insertion in model container [2024-11-14 05:09:51,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:09:51" (3/3) ... [2024-11-14 05:09:51,601 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product14.cil.c [2024-11-14 05:09:51,622 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:09:51,625 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec1_product14.cil.c that has 22 procedures, 173 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 05:09:51,703 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:09:51,723 INFO L333 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, 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;@47fc92fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:09:51,725 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:09:51,731 INFO L276 IsEmpty]: Start isEmpty. Operand has 173 states, 98 states have (on average 1.346938775510204) internal successors, (132), 103 states have internal predecessors, (132), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-14 05:09:51,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-14 05:09:51,750 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:09:51,751 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-14 05:09:51,752 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:09:51,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:09:51,761 INFO L85 PathProgramCache]: Analyzing trace with hash -62651629, now seen corresponding path program 1 times [2024-11-14 05:09:51,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:09:51,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050508554] [2024-11-14 05:09:51,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:09:51,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:09:52,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:09:52,397 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:09:52,397 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:09:52,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050508554] [2024-11-14 05:09:52,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050508554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:09:52,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:09:52,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:09:52,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706436856] [2024-11-14 05:09:52,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:09:52,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 05:09:52,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:09:52,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 05:09:52,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:09:52,446 INFO L87 Difference]: Start difference. First operand has 173 states, 98 states have (on average 1.346938775510204) internal successors, (132), 103 states have internal predecessors, (132), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-14 05:09:52,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:09:52,645 INFO L93 Difference]: Finished difference Result 254 states and 343 transitions. [2024-11-14 05:09:52,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 05:09:52,648 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 63 [2024-11-14 05:09:52,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:09:52,666 INFO L225 Difference]: With dead ends: 254 [2024-11-14 05:09:52,667 INFO L226 Difference]: Without dead ends: 170 [2024-11-14 05:09:52,672 INFO L431 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 [2024-11-14 05:09:52,678 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:09:52,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 202 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:09:52,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-11-14 05:09:52,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2024-11-14 05:09:52,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 96 states have (on average 1.3125) internal successors, (126), 100 states have internal predecessors, (126), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-14 05:09:52,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 229 transitions. [2024-11-14 05:09:52,781 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 229 transitions. Word has length 63 [2024-11-14 05:09:52,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:09:52,783 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 229 transitions. [2024-11-14 05:09:52,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-14 05:09:52,784 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 229 transitions. [2024-11-14 05:09:52,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-14 05:09:52,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:09:52,794 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-14 05:09:52,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:09:52,794 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:09:52,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:09:52,795 INFO L85 PathProgramCache]: Analyzing trace with hash 8655641, now seen corresponding path program 1 times [2024-11-14 05:09:52,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:09:52,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311616652] [2024-11-14 05:09:52,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:09:52,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:09:52,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:09:53,296 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:09:53,297 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:09:53,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311616652] [2024-11-14 05:09:53,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311616652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:09:53,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:09:53,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:09:53,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449917822] [2024-11-14 05:09:53,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:09:53,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:09:53,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:09:53,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:09:53,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:09:53,305 INFO L87 Difference]: Start difference. First operand 170 states and 229 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-14 05:09:53,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:09:53,511 INFO L93 Difference]: Finished difference Result 250 states and 328 transitions. [2024-11-14 05:09:53,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:09:53,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 64 [2024-11-14 05:09:53,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:09:53,519 INFO L225 Difference]: With dead ends: 250 [2024-11-14 05:09:53,519 INFO L226 Difference]: Without dead ends: 172 [2024-11-14 05:09:53,522 INFO L431 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 [2024-11-14 05:09:53,523 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 0 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:09:53,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 397 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:09:53,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-14 05:09:53,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2024-11-14 05:09:53,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 98 states have (on average 1.3061224489795917) internal successors, (128), 102 states have internal predecessors, (128), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-14 05:09:53,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 231 transitions. [2024-11-14 05:09:53,565 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 231 transitions. Word has length 64 [2024-11-14 05:09:53,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:09:53,566 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 231 transitions. [2024-11-14 05:09:53,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-14 05:09:53,566 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 231 transitions. [2024-11-14 05:09:53,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-14 05:09:53,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:09:53,571 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-14 05:09:53,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:09:53,574 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:09:53,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:09:53,575 INFO L85 PathProgramCache]: Analyzing trace with hash 507035076, now seen corresponding path program 1 times [2024-11-14 05:09:53,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:09:53,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682406169] [2024-11-14 05:09:53,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:09:53,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:09:53,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:09:53,857 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:09:53,857 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:09:53,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682406169] [2024-11-14 05:09:53,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682406169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:09:53,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:09:53,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:09:53,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726896280] [2024-11-14 05:09:53,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:09:53,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:09:53,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:09:53,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:09:53,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:09:53,861 INFO L87 Difference]: Start difference. First operand 172 states and 231 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-14 05:09:54,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:09:54,034 INFO L93 Difference]: Finished difference Result 379 states and 529 transitions. [2024-11-14 05:09:54,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:09:54,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 69 [2024-11-14 05:09:54,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:09:54,038 INFO L225 Difference]: With dead ends: 379 [2024-11-14 05:09:54,038 INFO L226 Difference]: Without dead ends: 225 [2024-11-14 05:09:54,040 INFO L431 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 [2024-11-14 05:09:54,041 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 59 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:09:54,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 405 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:09:54,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-11-14 05:09:54,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 220. [2024-11-14 05:09:54,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 132 states have (on average 1.3863636363636365) internal successors, (183), 136 states have internal predecessors, (183), 66 states have call successors, (66), 21 states have call predecessors, (66), 21 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-14 05:09:54,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 314 transitions. [2024-11-14 05:09:54,098 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 314 transitions. Word has length 69 [2024-11-14 05:09:54,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:09:54,099 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 314 transitions. [2024-11-14 05:09:54,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-14 05:09:54,103 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 314 transitions. [2024-11-14 05:09:54,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-14 05:09:54,111 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:09:54,111 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-14 05:09:54,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 05:09:54,111 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:09:54,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:09:54,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1059914918, now seen corresponding path program 1 times [2024-11-14 05:09:54,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:09:54,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598830231] [2024-11-14 05:09:54,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:09:54,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:09:54,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:09:54,408 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:09:54,408 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:09:54,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598830231] [2024-11-14 05:09:54,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598830231] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:09:54,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796672227] [2024-11-14 05:09:54,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:09:54,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:09:54,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:09:54,413 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:09:54,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:09:54,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:09:54,995 INFO L255 TraceCheckSpWp]: Trace formula consists of 815 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:09:55,005 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:09:55,092 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:09:55,095 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:09:55,254 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:09:55,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796672227] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:09:55,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [712699047] [2024-11-14 05:09:55,297 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2024-11-14 05:09:55,297 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:09:55,301 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:09:55,307 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:09:55,308 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:10:23,919 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2024-11-14 05:10:24,094 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 240 for LOIs [2024-11-14 05:10:24,270 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:11:29,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [712699047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:11:29,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:11:29,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-14 05:11:29,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582562166] [2024-11-14 05:11:29,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:11:29,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 05:11:29,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:11:29,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 05:11:29,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2024-11-14 05:11:29,176 INFO L87 Difference]: Start difference. First operand 220 states and 314 transitions. Second operand has 23 states, 15 states have (on average 2.466666666666667) internal successors, (37), 14 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-14 05:11:46,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:11:46,322 INFO L93 Difference]: Finished difference Result 455 states and 666 transitions. [2024-11-14 05:11:46,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-14 05:11:46,323 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 15 states have (on average 2.466666666666667) internal successors, (37), 14 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 70 [2024-11-14 05:11:46,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:11:46,326 INFO L225 Difference]: With dead ends: 455 [2024-11-14 05:11:46,326 INFO L226 Difference]: Without dead ends: 253 [2024-11-14 05:11:46,327 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 71.5s TimeCoverageRelationStatistics Valid=88, Invalid=782, Unknown=0, NotChecked=0, Total=870 [2024-11-14 05:11:46,331 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 26 mSDsluCounter, 2296 mSDsCounter, 0 mSdLazyCounter, 2209 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 2477 SdHoareTripleChecker+Invalid, 2220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:11:46,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 2477 Invalid, 2220 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 2209 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2024-11-14 05:11:46,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-11-14 05:11:46,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 243. [2024-11-14 05:11:46,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 154 states have (on average 1.4025974025974026) internal successors, (216), 158 states have internal predecessors, (216), 66 states have call successors, (66), 22 states have call predecessors, (66), 22 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-14 05:11:46,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 347 transitions. [2024-11-14 05:11:46,426 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 347 transitions. Word has length 70 [2024-11-14 05:11:46,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:11:46,427 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 347 transitions. [2024-11-14 05:11:46,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 15 states have (on average 2.466666666666667) internal successors, (37), 14 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-14 05:11:46,427 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 347 transitions. [2024-11-14 05:11:46,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-14 05:11:46,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:11:46,430 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 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] [2024-11-14 05:11:46,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:11:46,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:11:46,634 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:11:46,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:11:46,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1279689237, now seen corresponding path program 1 times [2024-11-14 05:11:46,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:11:46,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139875972] [2024-11-14 05:11:46,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:11:46,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:11:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:11:46,735 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 05:11:46,736 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:11:46,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139875972] [2024-11-14 05:11:46,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139875972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:11:46,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:11:46,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:11:46,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33565299] [2024-11-14 05:11:46,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:11:46,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:11:46,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:11:46,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:11:46,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:11:46,738 INFO L87 Difference]: Start difference. First operand 243 states and 347 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-14 05:11:46,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:11:46,967 INFO L93 Difference]: Finished difference Result 589 states and 874 transitions. [2024-11-14 05:11:46,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:11:46,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 75 [2024-11-14 05:11:46,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:11:46,971 INFO L225 Difference]: With dead ends: 589 [2024-11-14 05:11:46,971 INFO L226 Difference]: Without dead ends: 370 [2024-11-14 05:11:46,972 INFO L431 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 [2024-11-14 05:11:46,973 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 57 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:11:46,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 403 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:11:46,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2024-11-14 05:11:47,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 365. [2024-11-14 05:11:47,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 245 states have (on average 1.453061224489796) internal successors, (356), 249 states have internal predecessors, (356), 97 states have call successors, (97), 22 states have call predecessors, (97), 22 states have return successors, (96), 95 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-14 05:11:47,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 549 transitions. [2024-11-14 05:11:47,086 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 549 transitions. Word has length 75 [2024-11-14 05:11:47,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:11:47,087 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 549 transitions. [2024-11-14 05:11:47,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-14 05:11:47,087 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 549 transitions. [2024-11-14 05:11:47,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-14 05:11:47,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:11:47,090 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 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] [2024-11-14 05:11:47,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 05:11:47,091 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:11:47,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:11:47,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1015444688, now seen corresponding path program 1 times [2024-11-14 05:11:47,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:11:47,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280251778] [2024-11-14 05:11:47,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:11:47,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:11:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:11:47,347 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 05:11:47,347 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:11:47,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280251778] [2024-11-14 05:11:47,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280251778] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:11:47,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134625148] [2024-11-14 05:11:47,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:11:47,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:11:47,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:11:47,350 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:11:47,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 05:11:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:11:47,715 INFO L255 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:11:47,721 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:11:47,745 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 05:11:47,745 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:11:47,825 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 05:11:47,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [134625148] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:11:47,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [889924948] [2024-11-14 05:11:47,829 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2024-11-14 05:11:47,829 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:11:47,829 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:11:47,830 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:11:47,830 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:12:19,909 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2024-11-14 05:12:20,060 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 429 for LOIs [2024-11-14 05:12:21,202 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:12:45,244 WARN L286 SmtUtils]: Spent 7.83s on a formula simplification. DAG size of input: 429 DAG size of output: 429 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:12:56,672 WARN L286 SmtUtils]: Spent 11.02s on a formula simplification. DAG size of input: 453 DAG size of output: 448 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:13:53,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [889924948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:13:53,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:13:53,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4, 4, 4] total 31 [2024-11-14 05:13:53,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135145647] [2024-11-14 05:13:53,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:13:53,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-14 05:13:53,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:13:53,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-14 05:13:53,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2024-11-14 05:13:53,409 INFO L87 Difference]: Start difference. First operand 365 states and 549 transitions. Second operand has 26 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 16 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2024-11-14 05:14:09,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:14:09,391 INFO L93 Difference]: Finished difference Result 740 states and 1141 transitions. [2024-11-14 05:14:09,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-14 05:14:09,392 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 16 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 76 [2024-11-14 05:14:09,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:14:09,395 INFO L225 Difference]: With dead ends: 740 [2024-11-14 05:14:09,395 INFO L226 Difference]: Without dead ends: 438 [2024-11-14 05:14:09,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 95.5s TimeCoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-14 05:14:09,398 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 43 mSDsluCounter, 2606 mSDsCounter, 0 mSdLazyCounter, 2639 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 2785 SdHoareTripleChecker+Invalid, 2648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:14:09,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 2785 Invalid, 2648 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2639 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time] [2024-11-14 05:14:09,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2024-11-14 05:14:09,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 379. [2024-11-14 05:14:09,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 257 states have (on average 1.45136186770428) internal successors, (373), 261 states have internal predecessors, (373), 98 states have call successors, (98), 23 states have call predecessors, (98), 23 states have return successors, (97), 96 states have call predecessors, (97), 97 states have call successors, (97) [2024-11-14 05:14:09,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 568 transitions. [2024-11-14 05:14:09,574 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 568 transitions. Word has length 76 [2024-11-14 05:14:09,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:14:09,574 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 568 transitions. [2024-11-14 05:14:09,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 16 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2024-11-14 05:14:09,575 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 568 transitions. [2024-11-14 05:14:09,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-14 05:14:09,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:14:09,578 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-14 05:14:09,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 05:14:09,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-14 05:14:09,779 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:14:09,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:14:09,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1659810875, now seen corresponding path program 1 times [2024-11-14 05:14:09,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:14:09,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303756805] [2024-11-14 05:14:09,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:14:09,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:14:09,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:14:10,014 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:14:10,014 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:14:10,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303756805] [2024-11-14 05:14:10,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303756805] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:14:10,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76335826] [2024-11-14 05:14:10,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:14:10,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:14:10,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:14:10,018 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:14:10,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 05:14:10,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:14:10,400 INFO L255 TraceCheckSpWp]: Trace formula consists of 901 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:14:10,408 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:14:10,442 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:14:10,443 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:14:10,540 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:14:10,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76335826] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:14:10,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1406292357] [2024-11-14 05:14:10,544 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2024-11-14 05:14:10,547 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:14:10,548 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:14:10,548 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:14:10,548 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:15:09,332 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2024-11-14 05:15:09,479 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 475 for LOIs [2024-11-14 05:15:10,292 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 484 for LOIs [2024-11-14 05:15:11,071 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 420 for LOIs [2024-11-14 05:15:11,405 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 240 for LOIs [2024-11-14 05:15:11,555 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:16:53,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1406292357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:16:53,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:16:53,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2024-11-14 05:16:53,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365101605] [2024-11-14 05:16:53,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:16:53,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-14 05:16:53,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:16:53,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-14 05:16:53,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 05:16:53,616 INFO L87 Difference]: Start difference. First operand 379 states and 568 transitions. Second operand has 33 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2024-11-14 05:17:18,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:17:18,219 INFO L93 Difference]: Finished difference Result 765 states and 1176 transitions. [2024-11-14 05:17:18,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-14 05:17:18,220 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) Word has length 79 [2024-11-14 05:17:18,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:17:18,223 INFO L225 Difference]: With dead ends: 765 [2024-11-14 05:17:18,223 INFO L226 Difference]: Without dead ends: 463 [2024-11-14 05:17:18,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 108.2s TimeCoverageRelationStatistics Valid=125, Invalid=1435, Unknown=0, NotChecked=0, Total=1560 [2024-11-14 05:17:18,225 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 52 mSDsluCounter, 2948 mSDsCounter, 0 mSdLazyCounter, 3688 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 3126 SdHoareTripleChecker+Invalid, 3699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:17:18,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 3126 Invalid, 3699 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 3688 Invalid, 0 Unknown, 0 Unchecked, 18.1s Time] [2024-11-14 05:17:18,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2024-11-14 05:17:18,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 415. [2024-11-14 05:17:18,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 287 states have (on average 1.4459930313588851) internal successors, (415), 291 states have internal predecessors, (415), 101 states have call successors, (101), 26 states have call predecessors, (101), 26 states have return successors, (100), 99 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-14 05:17:18,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 616 transitions. [2024-11-14 05:17:18,361 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 616 transitions. Word has length 79 [2024-11-14 05:17:18,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:17:18,361 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 616 transitions. [2024-11-14 05:17:18,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2024-11-14 05:17:18,361 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 616 transitions. [2024-11-14 05:17:18,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-14 05:17:18,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:17:18,364 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-14 05:17:18,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 05:17:18,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-14 05:17:18,568 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:17:18,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:17:18,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1511403095, now seen corresponding path program 1 times [2024-11-14 05:17:18,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:17:18,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377110521] [2024-11-14 05:17:18,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:17:18,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:17:18,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:17:18,700 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:17:18,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:17:18,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377110521] [2024-11-14 05:17:18,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377110521] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:17:18,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618958382] [2024-11-14 05:17:18,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:17:18,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:17:18,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:17:18,703 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:17:18,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 05:17:19,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:17:19,091 INFO L255 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:17:19,095 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:17:19,126 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:17:19,126 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:17:19,215 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:17:19,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618958382] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:17:19,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [40071552] [2024-11-14 05:17:19,218 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2024-11-14 05:17:19,221 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:17:19,222 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:17:19,222 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:17:19,222 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:17:56,656 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2024-11-14 05:17:56,814 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 240 for LOIs [2024-11-14 05:17:56,957 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:18:52,432 WARN L286 SmtUtils]: Spent 9.56s on a formula simplification. DAG size of input: 444 DAG size of output: 444 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:19:03,097 WARN L286 SmtUtils]: Spent 9.57s on a formula simplification. DAG size of input: 445 DAG size of output: 444 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:19:13,892 WARN L286 SmtUtils]: Spent 9.57s on a formula simplification. DAG size of input: 449 DAG size of output: 448 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:19:25,451 WARN L286 SmtUtils]: Spent 9.43s on a formula simplification. DAG size of input: 449 DAG size of output: 448 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:19:37,137 WARN L286 SmtUtils]: Spent 9.34s on a formula simplification. DAG size of input: 449 DAG size of output: 448 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:19:48,781 WARN L286 SmtUtils]: Spent 9.46s on a formula simplification. DAG size of input: 449 DAG size of output: 448 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:20:00,460 WARN L286 SmtUtils]: Spent 9.20s on a formula simplification. DAG size of input: 449 DAG size of output: 448 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:20:05,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [40071552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:20:05,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:20:05,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-14 05:20:05,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725406240] [2024-11-14 05:20:05,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:20:05,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-14 05:20:05,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:20:05,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-14 05:20:05,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=893, Unknown=0, NotChecked=0, Total=992 [2024-11-14 05:20:05,026 INFO L87 Difference]: Start difference. First operand 415 states and 616 transitions. Second operand has 27 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 18 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-14 05:20:23,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:20:23,653 INFO L93 Difference]: Finished difference Result 766 states and 1165 transitions. [2024-11-14 05:20:23,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-14 05:20:23,654 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 18 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 78 [2024-11-14 05:20:23,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:20:23,658 INFO L225 Difference]: With dead ends: 766 [2024-11-14 05:20:23,658 INFO L226 Difference]: Without dead ends: 464 [2024-11-14 05:20:23,659 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 201 SyntacticMatches, 5 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 134.1s TimeCoverageRelationStatistics Valid=108, Invalid=1014, Unknown=0, NotChecked=0, Total=1122 [2024-11-14 05:20:23,660 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 18 mSDsluCounter, 2510 mSDsCounter, 0 mSdLazyCounter, 2680 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2683 SdHoareTripleChecker+Invalid, 2690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:20:23,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2683 Invalid, 2690 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2680 Invalid, 0 Unknown, 0 Unchecked, 12.3s Time] [2024-11-14 05:20:23,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-11-14 05:20:23,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 435. [2024-11-14 05:20:23,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 307 states have (on average 1.4495114006514658) internal successors, (445), 311 states have internal predecessors, (445), 101 states have call successors, (101), 26 states have call predecessors, (101), 26 states have return successors, (100), 99 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-14 05:20:23,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 646 transitions. [2024-11-14 05:20:23,806 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 646 transitions. Word has length 78 [2024-11-14 05:20:23,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:20:23,806 INFO L471 AbstractCegarLoop]: Abstraction has 435 states and 646 transitions. [2024-11-14 05:20:23,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 18 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-14 05:20:23,806 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 646 transitions. [2024-11-14 05:20:23,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-14 05:20:23,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:20:23,808 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:20:23,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 05:20:24,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-14 05:20:24,009 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:20:24,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:20:24,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1248329154, now seen corresponding path program 1 times [2024-11-14 05:20:24,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:20:24,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907192021] [2024-11-14 05:20:24,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:20:24,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:20:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:20:24,167 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 05:20:24,168 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:20:24,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907192021] [2024-11-14 05:20:24,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907192021] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:20:24,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482266501] [2024-11-14 05:20:24,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:20:24,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:20:24,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:20:24,170 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:20:24,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 05:20:24,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:20:24,512 INFO L255 TraceCheckSpWp]: Trace formula consists of 851 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:20:24,515 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:20:24,551 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 05:20:24,551 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:20:24,645 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 05:20:24,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482266501] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:20:24,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1298728859] [2024-11-14 05:20:24,648 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2024-11-14 05:20:24,648 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:20:24,648 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:20:24,648 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:20:24,648 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:20:52,431 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2024-11-14 05:20:52,576 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 429 for LOIs [2024-11-14 05:20:53,750 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 243 for LOIs [2024-11-14 05:20:55,989 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 226 for LOIs [2024-11-14 05:20:56,080 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 241 for LOIs [2024-11-14 05:20:57,207 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 236 for LOIs [2024-11-14 05:20:59,298 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 218 for LOIs [2024-11-14 05:20:59,363 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 245 for LOIs [2024-11-14 05:21:00,188 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 218 for LOIs [2024-11-14 05:21:00,299 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:21:22,124 WARN L286 SmtUtils]: Spent 6.79s on a formula simplification. DAG size of input: 429 DAG size of output: 429 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:21:32,505 WARN L286 SmtUtils]: Spent 9.85s on a formula simplification. DAG size of input: 453 DAG size of output: 449 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:22:27,146 WARN L286 SmtUtils]: Spent 5.49s on a formula simplification. DAG size of input: 261 DAG size of output: 245 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:22:56,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1298728859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:22:56,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:22:56,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [51] imperfect sequences [5, 5, 5] total 57 [2024-11-14 05:22:56,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353142054] [2024-11-14 05:22:56,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:22:56,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-11-14 05:22:56,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:22:56,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-14 05:22:56,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=3027, Unknown=0, NotChecked=0, Total=3192 [2024-11-14 05:22:56,318 INFO L87 Difference]: Start difference. First operand 435 states and 646 transitions. Second operand has 52 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 30 states have internal predecessors, (41), 15 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 05:23:27,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:23:27,513 INFO L93 Difference]: Finished difference Result 892 states and 1355 transitions. [2024-11-14 05:23:27,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-11-14 05:23:27,514 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 30 states have internal predecessors, (41), 15 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 81 [2024-11-14 05:23:27,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:23:27,517 INFO L225 Difference]: With dead ends: 892 [2024-11-14 05:23:27,518 INFO L226 Difference]: Without dead ends: 550 [2024-11-14 05:23:27,520 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 189 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 126.0s TimeCoverageRelationStatistics Valid=181, Invalid=3359, Unknown=0, NotChecked=0, Total=3540 [2024-11-14 05:23:27,523 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 147 mSDsluCounter, 3772 mSDsCounter, 0 mSdLazyCounter, 6323 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 3966 SdHoareTripleChecker+Invalid, 6353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 6323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:23:27,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 3966 Invalid, 6353 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [30 Valid, 6323 Invalid, 0 Unknown, 0 Unchecked, 20.7s Time] [2024-11-14 05:23:27,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-14 05:23:27,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 474. [2024-11-14 05:23:27,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 331 states have (on average 1.4199395770392749) internal successors, (470), 335 states have internal predecessors, (470), 110 states have call successors, (110), 35 states have call predecessors, (110), 32 states have return successors, (109), 105 states have call predecessors, (109), 109 states have call successors, (109) [2024-11-14 05:23:27,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 689 transitions. [2024-11-14 05:23:27,740 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 689 transitions. Word has length 81 [2024-11-14 05:23:27,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:23:27,740 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 689 transitions. [2024-11-14 05:23:27,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 30 states have internal predecessors, (41), 15 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 05:23:27,741 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 689 transitions. [2024-11-14 05:23:27,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 05:23:27,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:23:27,743 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-14 05:23:27,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 05:23:27,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-14 05:23:27,944 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:23:27,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:23:27,944 INFO L85 PathProgramCache]: Analyzing trace with hash 112201880, now seen corresponding path program 1 times [2024-11-14 05:23:27,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:23:27,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33821743] [2024-11-14 05:23:27,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:27,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:23:27,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:28,123 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:23:28,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:23:28,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33821743] [2024-11-14 05:23:28,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33821743] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:23:28,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469457849] [2024-11-14 05:23:28,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:28,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:23:28,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:23:28,126 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:23:28,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928d13be-9d85-4eb8-b742-6d5ce9d8aca6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 05:23:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:28,510 INFO L255 TraceCheckSpWp]: Trace formula consists of 913 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:23:28,514 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:23:28,544 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:23:28,544 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:23:28,636 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:23:28,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469457849] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:23:28,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [604655760] [2024-11-14 05:23:28,642 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2024-11-14 05:23:28,643 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:23:28,643 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:23:28,644 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:23:28,644 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs