./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product32.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_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/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_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product32.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/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_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/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 67a5f870249755b02192cafa5b1141561e5c0ebfbfae7faed4cfc72be0ad5c3d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:42:50,607 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:42:50,697 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-13 23:42:50,703 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:42:50,704 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:42:50,738 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:42:50,739 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:42:50,739 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:42:50,739 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:42:50,739 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:42:50,739 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:42:50,739 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:42:50,741 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:42:50,742 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:42:50,743 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:42:50,743 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:42:50,743 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:42:50,743 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:42:50,743 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:42:50,744 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:42:50,744 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:42:50,744 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:42:50,744 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:42:50,744 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:42:50,744 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:42:50,744 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:42:50,745 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:42:50,745 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:42:50,745 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:42:50,745 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:42:50,745 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:42:50,745 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:42:50,745 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:42:50,745 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:42:50,745 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:42:50,745 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:42:50,746 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:42:50,746 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:42:50,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:42:50,746 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:42:50,746 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:42:50,746 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:42:50,746 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:42:50,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:42:50,747 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:42:50,747 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:42:50,747 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:42:50,747 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_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/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 -> 67a5f870249755b02192cafa5b1141561e5c0ebfbfae7faed4cfc72be0ad5c3d [2024-11-13 23:42:51,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:42:51,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:42:51,087 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:42:51,089 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:42:51,089 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:42:51,090 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/product-lines/email_spec6_product32.cil.c Unable to find full path for "g++" [2024-11-13 23:42:52,881 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:42:53,396 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:42:53,399 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/sv-benchmarks/c/product-lines/email_spec6_product32.cil.c [2024-11-13 23:42:53,432 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/data/057496f25/01983fef0fc5479db54b164e7b3db17b/FLAG5ab079c4c [2024-11-13 23:42:53,457 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/data/057496f25/01983fef0fc5479db54b164e7b3db17b [2024-11-13 23:42:53,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:42:53,461 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:42:53,463 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:42:53,463 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:42:53,468 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:42:53,469 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:42:53" (1/1) ... [2024-11-13 23:42:53,470 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a8e4d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:53, skipping insertion in model container [2024-11-13 23:42:53,472 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:42:53" (1/1) ... [2024-11-13 23:42:53,547 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:42:54,052 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_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/sv-benchmarks/c/product-lines/email_spec6_product32.cil.c[40215,40228] [2024-11-13 23:42:54,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:42:54,302 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:42:54,311 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2024-11-13 23:42:54,315 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [277] [2024-11-13 23:42:54,315 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1357] [2024-11-13 23:42:54,315 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1769] [2024-11-13 23:42:54,316 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1778] [2024-11-13 23:42:54,316 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1796] [2024-11-13 23:42:54,317 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2162] [2024-11-13 23:42:54,317 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2586] [2024-11-13 23:42:54,317 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptDecrypt_spec.i","") [2624] [2024-11-13 23:42:54,318 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2670] [2024-11-13 23:42:54,318 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2958] [2024-11-13 23:42:54,414 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_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/sv-benchmarks/c/product-lines/email_spec6_product32.cil.c[40215,40228] [2024-11-13 23:42:54,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:42:54,504 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:42:54,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:54 WrapperNode [2024-11-13 23:42:54,505 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:42:54,506 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:42:54,506 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:42:54,506 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:42:54,513 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:54" (1/1) ... [2024-11-13 23:42:54,550 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:54" (1/1) ... [2024-11-13 23:42:54,603 INFO L138 Inliner]: procedures = 135, calls = 224, calls flagged for inlining = 62, calls inlined = 54, statements flattened = 1011 [2024-11-13 23:42:54,604 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:42:54,604 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:42:54,604 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:42:54,605 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:42:54,612 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:54" (1/1) ... [2024-11-13 23:42:54,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:54" (1/1) ... [2024-11-13 23:42:54,622 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:54" (1/1) ... [2024-11-13 23:42:54,622 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:54" (1/1) ... [2024-11-13 23:42:54,661 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:54" (1/1) ... [2024-11-13 23:42:54,673 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:54" (1/1) ... [2024-11-13 23:42:54,678 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:54" (1/1) ... [2024-11-13 23:42:54,681 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:54" (1/1) ... [2024-11-13 23:42:54,688 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:42:54,689 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:42:54,689 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:42:54,690 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:42:54,691 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:54" (1/1) ... [2024-11-13 23:42:54,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:42:54,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:42:54,723 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:42:54,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:42:54,755 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-13 23:42:54,755 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-13 23:42:54,755 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-13 23:42:54,755 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-13 23:42:54,755 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-13 23:42:54,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-13 23:42:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-13 23:42:54,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-13 23:42:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-13 23:42:54,756 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-13 23:42:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-13 23:42:54,756 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-13 23:42:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2024-11-13 23:42:54,757 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2024-11-13 23:42:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-13 23:42:54,757 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-13 23:42:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-13 23:42:54,757 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-13 23:42:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-13 23:42:54,757 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-13 23:42:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-13 23:42:54,757 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-13 23:42:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-13 23:42:54,757 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-13 23:42:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-13 23:42:54,758 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-13 23:42:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-13 23:42:54,758 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-13 23:42:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-13 23:42:54,758 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-13 23:42:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:42:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-13 23:42:54,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-13 23:42:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-13 23:42:54,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-13 23:42:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-13 23:42:54,758 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-13 23:42:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-13 23:42:54,758 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-13 23:42:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-13 23:42:54,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-13 23:42:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-13 23:42:54,759 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-13 23:42:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-13 23:42:54,759 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-13 23:42:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-13 23:42:54,759 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-13 23:42:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-13 23:42:54,759 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-13 23:42:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-13 23:42:54,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-13 23:42:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-13 23:42:54,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-13 23:42:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:42:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-13 23:42:54,760 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-13 23:42:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-13 23:42:54,760 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-13 23:42:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:42:54,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:42:55,022 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:42:55,024 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:42:56,483 INFO L? ?]: Removed 541 outVars from TransFormulas that were not future-live. [2024-11-13 23:42:56,483 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:42:57,401 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:42:57,401 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 23:42:57,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:42:57 BoogieIcfgContainer [2024-11-13 23:42:57,402 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:42:57,404 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:42:57,404 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:42:57,411 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:42:57,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:42:53" (1/3) ... [2024-11-13 23:42:57,412 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ec58f83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:42:57, skipping insertion in model container [2024-11-13 23:42:57,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:54" (2/3) ... [2024-11-13 23:42:57,412 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ec58f83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:42:57, skipping insertion in model container [2024-11-13 23:42:57,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:42:57" (3/3) ... [2024-11-13 23:42:57,414 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product32.cil.c [2024-11-13 23:42:57,431 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:42:57,434 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec6_product32.cil.c that has 29 procedures, 223 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 23:42:57,496 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:42:57,511 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;@38f52d62, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:42:57,511 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 23:42:57,517 INFO L276 IsEmpty]: Start isEmpty. Operand has 223 states, 126 states have (on average 1.3015873015873016) internal successors, (164), 131 states have internal predecessors, (164), 67 states have call successors, (67), 28 states have call predecessors, (67), 28 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-13 23:42:57,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-13 23:42:57,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:42:57,533 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:42:57,534 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:42:57,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:42:57,540 INFO L85 PathProgramCache]: Analyzing trace with hash 932563184, now seen corresponding path program 1 times [2024-11-13 23:42:57,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:42:57,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310536016] [2024-11-13 23:42:57,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:42:57,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:42:57,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:42:58,060 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:42:58,060 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:42:58,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310536016] [2024-11-13 23:42:58,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310536016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:42:58,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:42:58,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:42:58,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006534465] [2024-11-13 23:42:58,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:42:58,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 23:42:58,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:42:58,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 23:42:58,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:42:58,099 INFO L87 Difference]: Start difference. First operand has 223 states, 126 states have (on average 1.3015873015873016) internal successors, (164), 131 states have internal predecessors, (164), 67 states have call successors, (67), 28 states have call predecessors, (67), 28 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-13 23:42:58,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:42:58,305 INFO L93 Difference]: Finished difference Result 354 states and 467 transitions. [2024-11-13 23:42:58,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 23:42:58,307 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 87 [2024-11-13 23:42:58,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:42:58,318 INFO L225 Difference]: With dead ends: 354 [2024-11-13 23:42:58,318 INFO L226 Difference]: Without dead ends: 220 [2024-11-13 23:42:58,325 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 [2024-11-13 23:42:58,330 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:42:58,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 253 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:42:58,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-11-13 23:42:58,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2024-11-13 23:42:58,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 124 states have (on average 1.2741935483870968) internal successors, (158), 128 states have internal predecessors, (158), 67 states have call successors, (67), 28 states have call predecessors, (67), 28 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-13 23:42:58,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 291 transitions. [2024-11-13 23:42:58,422 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 291 transitions. Word has length 87 [2024-11-13 23:42:58,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:42:58,425 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 291 transitions. [2024-11-13 23:42:58,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-13 23:42:58,425 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 291 transitions. [2024-11-13 23:42:58,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-13 23:42:58,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:42:58,431 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:42:58,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 23:42:58,435 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:42:58,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:42:58,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1798775201, now seen corresponding path program 1 times [2024-11-13 23:42:58,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:42:58,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965639949] [2024-11-13 23:42:58,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:42:58,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:42:58,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:42:58,936 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:42:58,936 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:42:58,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965639949] [2024-11-13 23:42:58,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965639949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:42:58,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:42:58,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:42:58,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575717973] [2024-11-13 23:42:58,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:42:58,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:42:58,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:42:58,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:42:58,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:42:58,944 INFO L87 Difference]: Start difference. First operand 220 states and 291 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-13 23:42:59,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:42:59,168 INFO L93 Difference]: Finished difference Result 350 states and 452 transitions. [2024-11-13 23:42:59,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:42:59,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 88 [2024-11-13 23:42:59,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:42:59,173 INFO L225 Difference]: With dead ends: 350 [2024-11-13 23:42:59,173 INFO L226 Difference]: Without dead ends: 222 [2024-11-13 23:42:59,177 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 [2024-11-13 23:42:59,180 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 0 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:42:59,180 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 499 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:42:59,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-13 23:42:59,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2024-11-13 23:42:59,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 126 states have (on average 1.2698412698412698) internal successors, (160), 130 states have internal predecessors, (160), 67 states have call successors, (67), 28 states have call predecessors, (67), 28 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-13 23:42:59,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 293 transitions. [2024-11-13 23:42:59,211 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 293 transitions. Word has length 88 [2024-11-13 23:42:59,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:42:59,212 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 293 transitions. [2024-11-13 23:42:59,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-13 23:42:59,212 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 293 transitions. [2024-11-13 23:42:59,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-13 23:42:59,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:42:59,218 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:42:59,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 23:42:59,219 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:42:59,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:42:59,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1210157719, now seen corresponding path program 1 times [2024-11-13 23:42:59,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:42:59,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391460903] [2024-11-13 23:42:59,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:42:59,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:42:59,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:42:59,399 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:42:59,399 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:42:59,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391460903] [2024-11-13 23:42:59,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391460903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:42:59,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:42:59,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:42:59,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780847328] [2024-11-13 23:42:59,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:42:59,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:42:59,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:42:59,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:42:59,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:42:59,402 INFO L87 Difference]: Start difference. First operand 222 states and 293 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-13 23:42:59,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:42:59,599 INFO L93 Difference]: Finished difference Result 479 states and 653 transitions. [2024-11-13 23:42:59,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:42:59,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 93 [2024-11-13 23:42:59,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:42:59,602 INFO L225 Difference]: With dead ends: 479 [2024-11-13 23:42:59,603 INFO L226 Difference]: Without dead ends: 275 [2024-11-13 23:42:59,604 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 [2024-11-13 23:42:59,605 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 59 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:42:59,605 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 506 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:42:59,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2024-11-13 23:42:59,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 270. [2024-11-13 23:42:59,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 160 states have (on average 1.34375) internal successors, (215), 164 states have internal predecessors, (215), 81 states have call successors, (81), 28 states have call predecessors, (81), 28 states have return successors, (80), 79 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-13 23:42:59,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 376 transitions. [2024-11-13 23:42:59,650 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 376 transitions. Word has length 93 [2024-11-13 23:42:59,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:42:59,651 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 376 transitions. [2024-11-13 23:42:59,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-13 23:42:59,651 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 376 transitions. [2024-11-13 23:42:59,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-13 23:42:59,657 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:42:59,657 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:42:59,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 23:42:59,658 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:42:59,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:42:59,658 INFO L85 PathProgramCache]: Analyzing trace with hash -396659596, now seen corresponding path program 1 times [2024-11-13 23:42:59,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:42:59,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751093354] [2024-11-13 23:42:59,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:42:59,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:42:59,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:43:00,043 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:43:00,044 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:43:00,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751093354] [2024-11-13 23:43:00,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751093354] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:43:00,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722690568] [2024-11-13 23:43:00,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:43:00,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:43:00,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:43:00,048 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:43:00,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 23:43:00,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:43:00,567 INFO L255 TraceCheckSpWp]: Trace formula consists of 1038 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:43:00,578 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:43:00,665 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:43:00,666 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:43:00,849 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:43:00,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722690568] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:43:00,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1420956451] [2024-11-13 23:43:00,878 INFO L159 IcfgInterpreter]: Started Sifa with 79 locations of interest [2024-11-13 23:43:00,879 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:43:00,882 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:43:00,886 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:43:00,887 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:43:30,591 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2024-11-13 23:43:30,711 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 240 for LOIs [2024-11-13 23:43:30,869 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:44:31,374 WARN L286 SmtUtils]: Spent 10.53s on a formula simplification. DAG size of input: 469 DAG size of output: 469 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:44:44,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1420956451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:44:44,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:44:44,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-13 23:44:44,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277083427] [2024-11-13 23:44:44,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:44:44,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-13 23:44:44,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:44:44,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-13 23:44:44,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-13 23:44:44,657 INFO L87 Difference]: Start difference. First operand 270 states and 376 transitions. Second operand has 23 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 14 states have internal predecessors, (47), 7 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-13 23:44:58,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:58,259 INFO L93 Difference]: Finished difference Result 555 states and 790 transitions. [2024-11-13 23:44:58,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-13 23:44:58,260 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 14 states have internal predecessors, (47), 7 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 94 [2024-11-13 23:44:58,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:58,263 INFO L225 Difference]: With dead ends: 555 [2024-11-13 23:44:58,263 INFO L226 Difference]: Without dead ends: 303 [2024-11-13 23:44:58,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 77.1s TimeCoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2024-11-13 23:44:58,266 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 26 mSDsluCounter, 3002 mSDsCounter, 0 mSdLazyCounter, 2098 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 3233 SdHoareTripleChecker+Invalid, 2108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:44:58,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 3233 Invalid, 2108 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2098 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2024-11-13 23:44:58,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-11-13 23:44:58,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 293. [2024-11-13 23:44:58,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 182 states have (on average 1.3626373626373627) internal successors, (248), 186 states have internal predecessors, (248), 81 states have call successors, (81), 29 states have call predecessors, (81), 29 states have return successors, (80), 79 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-13 23:44:58,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 409 transitions. [2024-11-13 23:44:58,343 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 409 transitions. Word has length 94 [2024-11-13 23:44:58,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:58,344 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 409 transitions. [2024-11-13 23:44:58,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 14 states have internal predecessors, (47), 7 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-13 23:44:58,344 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 409 transitions. [2024-11-13 23:44:58,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-13 23:44:58,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:58,348 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:44:58,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 23:44:58,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:44:58,552 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:44:58,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:58,553 INFO L85 PathProgramCache]: Analyzing trace with hash -552126273, now seen corresponding path program 1 times [2024-11-13 23:44:58,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:58,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413445481] [2024-11-13 23:44:58,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:58,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:58,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:58,757 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 23:44:58,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:44:58,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413445481] [2024-11-13 23:44:58,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413445481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:44:58,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:44:58,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:44:58,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895818402] [2024-11-13 23:44:58,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:44:58,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:44:58,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:44:58,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:44:58,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:44:58,759 INFO L87 Difference]: Start difference. First operand 293 states and 409 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-13 23:44:59,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:59,034 INFO L93 Difference]: Finished difference Result 689 states and 998 transitions. [2024-11-13 23:44:59,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:44:59,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 110 [2024-11-13 23:44:59,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:59,038 INFO L225 Difference]: With dead ends: 689 [2024-11-13 23:44:59,039 INFO L226 Difference]: Without dead ends: 420 [2024-11-13 23:44:59,040 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 [2024-11-13 23:44:59,041 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 57 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:44:59,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 511 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:44:59,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2024-11-13 23:44:59,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 415. [2024-11-13 23:44:59,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 273 states have (on average 1.4212454212454213) internal successors, (388), 277 states have internal predecessors, (388), 112 states have call successors, (112), 29 states have call predecessors, (112), 29 states have return successors, (111), 110 states have call predecessors, (111), 111 states have call successors, (111) [2024-11-13 23:44:59,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 611 transitions. [2024-11-13 23:44:59,133 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 611 transitions. Word has length 110 [2024-11-13 23:44:59,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:59,134 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 611 transitions. [2024-11-13 23:44:59,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-13 23:44:59,134 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 611 transitions. [2024-11-13 23:44:59,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-13 23:44:59,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:59,137 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:44:59,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 23:44:59,138 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:44:59,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:59,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1536913302, now seen corresponding path program 1 times [2024-11-13 23:44:59,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:59,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276344789] [2024-11-13 23:44:59,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:59,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:59,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:59,343 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 23:44:59,343 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:44:59,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276344789] [2024-11-13 23:44:59,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276344789] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:44:59,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450314716] [2024-11-13 23:44:59,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:59,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:44:59,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:44:59,346 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:44:59,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 23:44:59,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:59,775 INFO L255 TraceCheckSpWp]: Trace formula consists of 1061 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:44:59,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:44:59,828 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 23:44:59,828 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:44:59,973 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 23:44:59,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450314716] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:44:59,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1693284234] [2024-11-13 23:44:59,980 INFO L159 IcfgInterpreter]: Started Sifa with 83 locations of interest [2024-11-13 23:44:59,980 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:44:59,981 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:44:59,981 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:44:59,981 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:45:38,199 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2024-11-13 23:45:38,359 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 453 for LOIs [2024-11-13 23:45:39,749 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:46:06,588 WARN L286 SmtUtils]: Spent 8.57s on a formula simplification. DAG size of input: 453 DAG size of output: 453 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:46:19,036 WARN L286 SmtUtils]: Spent 12.07s on a formula simplification. DAG size of input: 477 DAG size of output: 473 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:47:05,633 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification. DAG size of input: 470 DAG size of output: 470 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:47:27,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1693284234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:47:27,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:47:27,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-13 23:47:27,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058786765] [2024-11-13 23:47:27,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:47:27,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-13 23:47:27,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:47:27,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-13 23:47:27,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=886, Unknown=0, NotChecked=0, Total=992 [2024-11-13 23:47:27,567 INFO L87 Difference]: Start difference. First operand 415 states and 611 transitions. Second operand has 27 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 17 states have internal predecessors, (50), 8 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2024-11-13 23:47:45,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:47:45,870 INFO L93 Difference]: Finished difference Result 842 states and 1267 transitions. [2024-11-13 23:47:45,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-13 23:47:45,871 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 17 states have internal predecessors, (50), 8 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) Word has length 100 [2024-11-13 23:47:45,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:47:45,875 INFO L225 Difference]: With dead ends: 842 [2024-11-13 23:47:45,875 INFO L226 Difference]: Without dead ends: 490 [2024-11-13 23:47:45,878 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 112.8s TimeCoverageRelationStatistics Valid=114, Invalid=942, Unknown=0, NotChecked=0, Total=1056 [2024-11-13 23:47:45,879 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 110 mSDsluCounter, 3233 mSDsCounter, 0 mSdLazyCounter, 2395 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 3469 SdHoareTripleChecker+Invalid, 2408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:47:45,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 3469 Invalid, 2408 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 2395 Invalid, 0 Unknown, 0 Unchecked, 13.0s Time] [2024-11-13 23:47:45,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-11-13 23:47:46,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 429. [2024-11-13 23:47:46,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 285 states have (on average 1.4210526315789473) internal successors, (405), 289 states have internal predecessors, (405), 113 states have call successors, (113), 30 states have call predecessors, (113), 30 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-13 23:47:46,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 630 transitions. [2024-11-13 23:47:46,014 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 630 transitions. Word has length 100 [2024-11-13 23:47:46,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:47:46,015 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 630 transitions. [2024-11-13 23:47:46,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 17 states have internal predecessors, (50), 8 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2024-11-13 23:47:46,015 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 630 transitions. [2024-11-13 23:47:46,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 23:47:46,019 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:47:46,019 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:47:46,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 23:47:46,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:47:46,220 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:47:46,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:47:46,220 INFO L85 PathProgramCache]: Analyzing trace with hash 410321721, now seen corresponding path program 1 times [2024-11-13 23:47:46,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:47:46,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997827838] [2024-11-13 23:47:46,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:47:46,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:47:46,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:47:46,446 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:47:46,446 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:47:46,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997827838] [2024-11-13 23:47:46,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997827838] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:47:46,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326533876] [2024-11-13 23:47:46,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:47:46,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:47:46,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:47:46,449 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:47:46,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 23:47:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:47:46,970 INFO L255 TraceCheckSpWp]: Trace formula consists of 1123 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:47:46,975 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:47:47,006 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:47:47,006 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:47:47,126 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:47:47,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326533876] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:47:47,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1983261602] [2024-11-13 23:47:47,130 INFO L159 IcfgInterpreter]: Started Sifa with 88 locations of interest [2024-11-13 23:47:47,130 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:47:47,131 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:47:47,131 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:47:47,131 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:48:44,038 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2024-11-13 23:48:44,153 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 499 for LOIs [2024-11-13 23:48:45,146 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 508 for LOIs [2024-11-13 23:48:46,211 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 254 for LOIs [2024-11-13 23:48:46,362 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 240 for LOIs [2024-11-13 23:48:46,508 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:49:53,462 WARN L286 SmtUtils]: Spent 14.13s on a formula simplification. DAG size of input: 528 DAG size of output: 523 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:50:37,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1983261602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:50:37,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:50:37,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2024-11-13 23:50:37,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372786298] [2024-11-13 23:50:37,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:50:37,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-13 23:50:37,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:50:37,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-13 23:50:37,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1288, Unknown=0, NotChecked=0, Total=1406 [2024-11-13 23:50:37,368 INFO L87 Difference]: Start difference. First operand 429 states and 630 transitions. Second operand has 33 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 10 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (21), 10 states have call predecessors, (21), 10 states have call successors, (21) [2024-11-13 23:51:06,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:51:06,400 INFO L93 Difference]: Finished difference Result 869 states and 1306 transitions. [2024-11-13 23:51:06,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-13 23:51:06,401 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 10 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (21), 10 states have call predecessors, (21), 10 states have call successors, (21) Word has length 103 [2024-11-13 23:51:06,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:51:06,405 INFO L225 Difference]: With dead ends: 869 [2024-11-13 23:51:06,405 INFO L226 Difference]: Without dead ends: 517 [2024-11-13 23:51:06,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 119.1s TimeCoverageRelationStatistics Valid=129, Invalid=1431, Unknown=0, NotChecked=0, Total=1560 [2024-11-13 23:51:06,408 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 107 mSDsluCounter, 3993 mSDsCounter, 0 mSdLazyCounter, 3903 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 4227 SdHoareTripleChecker+Invalid, 3916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 3903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2024-11-13 23:51:06,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 4227 Invalid, 3916 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 3903 Invalid, 0 Unknown, 0 Unchecked, 20.4s Time] [2024-11-13 23:51:06,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2024-11-13 23:51:06,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 465. [2024-11-13 23:51:06,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 315 states have (on average 1.4190476190476191) internal successors, (447), 319 states have internal predecessors, (447), 116 states have call successors, (116), 33 states have call predecessors, (116), 33 states have return successors, (115), 114 states have call predecessors, (115), 115 states have call successors, (115) [2024-11-13 23:51:06,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 678 transitions. [2024-11-13 23:51:06,528 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 678 transitions. Word has length 103 [2024-11-13 23:51:06,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:51:06,528 INFO L471 AbstractCegarLoop]: Abstraction has 465 states and 678 transitions. [2024-11-13 23:51:06,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 10 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (21), 10 states have call predecessors, (21), 10 states have call successors, (21) [2024-11-13 23:51:06,528 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 678 transitions. [2024-11-13 23:51:06,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-13 23:51:06,531 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:51:06,531 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:51:06,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-13 23:51:06,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:51:06,735 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:51:06,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:51:06,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1575604835, now seen corresponding path program 1 times [2024-11-13 23:51:06,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:51:06,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072164130] [2024-11-13 23:51:06,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:51:06,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:51:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:51:06,902 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:51:06,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:51:06,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072164130] [2024-11-13 23:51:06,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072164130] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:51:06,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292065740] [2024-11-13 23:51:06,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:51:06,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:51:06,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:51:06,905 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:51:06,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 23:51:07,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:51:07,333 INFO L255 TraceCheckSpWp]: Trace formula consists of 1061 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:51:07,338 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:51:07,377 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:51:07,380 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:51:07,485 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:51:07,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292065740] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:51:07,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1282203698] [2024-11-13 23:51:07,488 INFO L159 IcfgInterpreter]: Started Sifa with 87 locations of interest [2024-11-13 23:51:07,490 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:51:07,490 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:51:07,491 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:51:07,491 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:51:49,510 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2024-11-13 23:51:49,675 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 240 for LOIs [2024-11-13 23:51:49,848 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:52:56,633 WARN L286 SmtUtils]: Spent 10.37s on a formula simplification. DAG size of input: 468 DAG size of output: 468 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:53:24,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1282203698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:53:24,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:53:24,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2024-11-13 23:53:24,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537948853] [2024-11-13 23:53:24,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:53:24,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-13 23:53:24,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:53:24,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-13 23:53:24,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=948, Unknown=0, NotChecked=0, Total=1056 [2024-11-13 23:53:24,834 INFO L87 Difference]: Start difference. First operand 465 states and 678 transitions. Second operand has 28 states, 20 states have (on average 2.75) internal successors, (55), 19 states have internal predecessors, (55), 7 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-13 23:53:58,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:53:58,143 INFO L93 Difference]: Finished difference Result 866 states and 1289 transitions. [2024-11-13 23:53:58,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-13 23:53:58,144 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 20 states have (on average 2.75) internal successors, (55), 19 states have internal predecessors, (55), 7 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 102 [2024-11-13 23:53:58,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:53:58,149 INFO L225 Difference]: With dead ends: 866 [2024-11-13 23:53:58,149 INFO L226 Difference]: Without dead ends: 514 [2024-11-13 23:53:58,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 275 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 116.6s TimeCoverageRelationStatistics Valid=140, Invalid=1266, Unknown=0, NotChecked=0, Total=1406 [2024-11-13 23:53:58,153 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 43 mSDsluCounter, 3534 mSDsCounter, 0 mSdLazyCounter, 2788 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 3759 SdHoareTripleChecker+Invalid, 2799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2024-11-13 23:53:58,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 3759 Invalid, 2799 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 2788 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2024-11-13 23:53:58,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-11-13 23:53:58,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 485. [2024-11-13 23:53:58,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 335 states have (on average 1.4238805970149253) internal successors, (477), 339 states have internal predecessors, (477), 116 states have call successors, (116), 33 states have call predecessors, (116), 33 states have return successors, (115), 114 states have call predecessors, (115), 115 states have call successors, (115) [2024-11-13 23:53:58,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 708 transitions. [2024-11-13 23:53:58,354 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 708 transitions. Word has length 102 [2024-11-13 23:53:58,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:53:58,354 INFO L471 AbstractCegarLoop]: Abstraction has 485 states and 708 transitions. [2024-11-13 23:53:58,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 20 states have (on average 2.75) internal successors, (55), 19 states have internal predecessors, (55), 7 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-13 23:53:58,355 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 708 transitions. [2024-11-13 23:53:58,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 23:53:58,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:53:58,357 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:53:58,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 23:53:58,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:53:58,558 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:53:58,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:53:58,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1795901335, now seen corresponding path program 1 times [2024-11-13 23:53:58,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:53:58,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103522339] [2024-11-13 23:53:58,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:53:58,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:53:58,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:53:59,405 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-13 23:53:59,406 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:53:59,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103522339] [2024-11-13 23:53:59,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103522339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:53:59,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:53:59,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-13 23:53:59,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585547879] [2024-11-13 23:53:59,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:53:59,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-13 23:53:59,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:53:59,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 23:53:59,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-13 23:53:59,409 INFO L87 Difference]: Start difference. First operand 485 states and 708 transitions. Second operand has 16 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 10 states have call successors, (22), 4 states have call predecessors, (22), 2 states have return successors, (19), 9 states have call predecessors, (19), 9 states have call successors, (19) [2024-11-13 23:54:01,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:54:01,777 INFO L93 Difference]: Finished difference Result 993 states and 1375 transitions. [2024-11-13 23:54:01,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-13 23:54:01,778 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 10 states have call successors, (22), 4 states have call predecessors, (22), 2 states have return successors, (19), 9 states have call predecessors, (19), 9 states have call successors, (19) Word has length 105 [2024-11-13 23:54:01,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:54:01,787 INFO L225 Difference]: With dead ends: 993 [2024-11-13 23:54:01,787 INFO L226 Difference]: Without dead ends: 868 [2024-11-13 23:54:01,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=791, Unknown=0, NotChecked=0, Total=930 [2024-11-13 23:54:01,794 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 508 mSDsluCounter, 2534 mSDsCounter, 0 mSdLazyCounter, 2419 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 2823 SdHoareTripleChecker+Invalid, 2665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 2419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-13 23:54:01,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 2823 Invalid, 2665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 2419 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-13 23:54:01,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2024-11-13 23:54:02,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 855. [2024-11-13 23:54:02,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 539 states have (on average 1.3320964749536177) internal successors, (718), 552 states have internal predecessors, (718), 229 states have call successors, (229), 85 states have call predecessors, (229), 86 states have return successors, (238), 221 states have call predecessors, (238), 221 states have call successors, (238) [2024-11-13 23:54:02,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1185 transitions. [2024-11-13 23:54:02,173 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1185 transitions. Word has length 105 [2024-11-13 23:54:02,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:54:02,173 INFO L471 AbstractCegarLoop]: Abstraction has 855 states and 1185 transitions. [2024-11-13 23:54:02,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 10 states have call successors, (22), 4 states have call predecessors, (22), 2 states have return successors, (19), 9 states have call predecessors, (19), 9 states have call successors, (19) [2024-11-13 23:54:02,173 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1185 transitions. [2024-11-13 23:54:02,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-13 23:54:02,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:54:02,177 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:54:02,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 23:54:02,177 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:54:02,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:54:02,178 INFO L85 PathProgramCache]: Analyzing trace with hash -45956111, now seen corresponding path program 1 times [2024-11-13 23:54:02,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:54:02,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033900087] [2024-11-13 23:54:02,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:54:02,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:54:02,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:54:02,498 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 23:54:02,498 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:54:02,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033900087] [2024-11-13 23:54:02,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033900087] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:54:02,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12854053] [2024-11-13 23:54:02,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:54:02,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:54:02,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:54:02,507 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:54:02,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 23:54:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:54:03,050 INFO L255 TraceCheckSpWp]: Trace formula consists of 1101 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:54:03,055 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:54:03,094 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 23:54:03,094 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:54:03,207 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 23:54:03,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12854053] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:54:03,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [239024388] [2024-11-13 23:54:03,210 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2024-11-13 23:54:03,210 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:54:03,211 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:54:03,211 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:54:03,211 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:54:43,130 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2024-11-13 23:54:43,247 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 455 for LOIs [2024-11-13 23:54:44,350 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:55:08,354 WARN L286 SmtUtils]: Spent 7.50s on a formula simplification. DAG size of input: 455 DAG size of output: 456 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:55:19,621 WARN L286 SmtUtils]: Spent 10.80s on a formula simplification. DAG size of input: 479 DAG size of output: 475 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:56:15,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [239024388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:56:15,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:56:15,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [5, 5, 5] total 32 [2024-11-13 23:56:15,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392479078] [2024-11-13 23:56:15,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:56:15,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-13 23:56:15,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:56:15,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-13 23:56:15,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=890, Unknown=0, NotChecked=0, Total=992 [2024-11-13 23:56:15,829 INFO L87 Difference]: Start difference. First operand 855 states and 1185 transitions. Second operand has 27 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 17 states have internal predecessors, (53), 8 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) [2024-11-13 23:56:32,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:56:32,833 INFO L93 Difference]: Finished difference Result 1724 states and 2447 transitions. [2024-11-13 23:56:32,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-13 23:56:32,834 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 17 states have internal predecessors, (53), 8 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) Word has length 111 [2024-11-13 23:56:32,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:56:32,844 INFO L225 Difference]: With dead ends: 1724 [2024-11-13 23:56:32,844 INFO L226 Difference]: Without dead ends: 1002 [2024-11-13 23:56:32,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 304 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 93.2s TimeCoverageRelationStatistics Valid=110, Invalid=946, Unknown=0, NotChecked=0, Total=1056 [2024-11-13 23:56:32,852 INFO L432 NwaCegarLoop]: 257 mSDtfsCounter, 115 mSDsluCounter, 3589 mSDsCounter, 0 mSdLazyCounter, 2927 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 3846 SdHoareTripleChecker+Invalid, 2953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2024-11-13 23:56:32,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 3846 Invalid, 2953 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 2927 Invalid, 0 Unknown, 0 Unchecked, 14.8s Time] [2024-11-13 23:56:32,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2024-11-13 23:56:33,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 876. [2024-11-13 23:56:33,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 557 states have (on average 1.333931777378815) internal successors, (743), 570 states have internal predecessors, (743), 231 states have call successors, (231), 86 states have call predecessors, (231), 87 states have return successors, (240), 223 states have call predecessors, (240), 223 states have call successors, (240) [2024-11-13 23:56:33,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1214 transitions. [2024-11-13 23:56:33,128 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1214 transitions. Word has length 111 [2024-11-13 23:56:33,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:56:33,129 INFO L471 AbstractCegarLoop]: Abstraction has 876 states and 1214 transitions. [2024-11-13 23:56:33,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 17 states have internal predecessors, (53), 8 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) [2024-11-13 23:56:33,129 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1214 transitions. [2024-11-13 23:56:33,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-13 23:56:33,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:56:33,133 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:56:33,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 23:56:33,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:56:33,337 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:56:33,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:56:33,338 INFO L85 PathProgramCache]: Analyzing trace with hash -710905767, now seen corresponding path program 1 times [2024-11-13 23:56:33,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:56:33,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496971860] [2024-11-13 23:56:33,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:56:33,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:56:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:56:33,590 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:56:33,590 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:56:33,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496971860] [2024-11-13 23:56:33,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496971860] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:56:33,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549196011] [2024-11-13 23:56:33,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:56:33,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:56:33,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:56:33,595 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:56:33,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3675ddab-b02e-4f0e-b0aa-9b1fb1279c96/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 23:56:34,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:56:34,218 INFO L255 TraceCheckSpWp]: Trace formula consists of 1163 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:56:34,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:56:34,269 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:56:34,270 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:56:34,432 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:56:34,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549196011] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:56:34,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1270109732] [2024-11-13 23:56:34,438 INFO L159 IcfgInterpreter]: Started Sifa with 96 locations of interest [2024-11-13 23:56:34,438 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:56:34,439 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:56:34,439 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:56:34,439 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs