./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb99fe2d-ea66-439b-8eab-7910cccab04b/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb99fe2d-ea66-439b-8eab-7910cccab04b/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb99fe2d-ea66-439b-8eab-7910cccab04b/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb99fe2d-ea66-439b-8eab-7910cccab04b/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product29.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb99fe2d-ea66-439b-8eab-7910cccab04b/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb99fe2d-ea66-439b-8eab-7910cccab04b/bin/utaipan-verify-DbMuA5NWw2 --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 9244be1607acf28cf3da39a66e263e3f7b227fe42ed993f89a6311649f8ded26 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:22:47,532 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:22:47,627 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb99fe2d-ea66-439b-8eab-7910cccab04b/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 12:22:47,636 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:22:47,638 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:22:47,691 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:22:47,691 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:22:47,692 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:22:47,692 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:22:47,693 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:22:47,694 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:22:47,695 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:22:47,695 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:22:47,696 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:22:47,698 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:22:47,699 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:22:47,699 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:22:47,699 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:22:47,700 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:22:47,700 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:22:47,701 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:22:47,702 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:22:47,702 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:22:47,703 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:22:47,703 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:22:47,704 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:22:47,704 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:22:47,704 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:22:47,704 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:22:47,705 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:22:47,705 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:22:47,706 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:22:47,706 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:22:47,706 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:22:47,715 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:22:47,715 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:22:47,715 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:22:47,716 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:22:47,716 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:22:47,716 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:22:47,717 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:22:47,719 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:22:47,719 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:22:47,719 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:22:47,720 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:22:47,720 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:22:47,720 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:22:47,720 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb99fe2d-ea66-439b-8eab-7910cccab04b/bin/utaipan-verify-DbMuA5NWw2/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb99fe2d-ea66-439b-8eab-7910cccab04b/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9244be1607acf28cf3da39a66e263e3f7b227fe42ed993f89a6311649f8ded26 [2024-11-02 12:22:47,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:22:48,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:22:48,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:22:48,006 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:22:48,007 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:22:48,008 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb99fe2d-ea66-439b-8eab-7910cccab04b/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/product-lines/email_spec8_product29.cil.c Unable to find full path for "g++" [2024-11-02 12:22:50,113 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:22:50,410 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:22:50,414 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb99fe2d-ea66-439b-8eab-7910cccab04b/sv-benchmarks/c/product-lines/email_spec8_product29.cil.c [2024-11-02 12:22:50,451 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb99fe2d-ea66-439b-8eab-7910cccab04b/bin/utaipan-verify-DbMuA5NWw2/data/6f1dd98df/5f95d25a1ae74c0aa516eaec652bbdea/FLAG2451a4ed4 [2024-11-02 12:22:50,466 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb99fe2d-ea66-439b-8eab-7910cccab04b/bin/utaipan-verify-DbMuA5NWw2/data/6f1dd98df/5f95d25a1ae74c0aa516eaec652bbdea [2024-11-02 12:22:50,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:22:50,472 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:22:50,475 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:22:50,476 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:22:50,481 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:22:50,482 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:22:50" (1/1) ... [2024-11-02 12:22:50,483 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28e00cba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:22:50, skipping insertion in model container [2024-11-02 12:22:50,483 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:22:50" (1/1) ... [2024-11-02 12:22:50,552 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:22:51,066 WARN L251 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_eb99fe2d-ea66-439b-8eab-7910cccab04b/sv-benchmarks/c/product-lines/email_spec8_product29.cil.c[29472,29485] [2024-11-02 12:22:51,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:22:51,246 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:22:51,254 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [48] [2024-11-02 12:22:51,256 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [460] [2024-11-02 12:22:51,256 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [509] [2024-11-02 12:22:51,256 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptAutoResponder_spec.i","") [648] [2024-11-02 12:22:51,257 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [692] [2024-11-02 12:22:51,257 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1058] [2024-11-02 12:22:51,257 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1075] [2024-11-02 12:22:51,258 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1300] [2024-11-02 12:22:51,258 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1309] [2024-11-02 12:22:51,258 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1688] [2024-11-02 12:22:51,258 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1975] [2024-11-02 12:22:51,325 WARN L251 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_eb99fe2d-ea66-439b-8eab-7910cccab04b/sv-benchmarks/c/product-lines/email_spec8_product29.cil.c[29472,29485] [2024-11-02 12:22:51,395 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:22:51,440 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:22:51,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:22:51 WrapperNode [2024-11-02 12:22:51,441 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:22:51,442 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:22:51,442 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:22:51,442 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:22:51,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:22:51" (1/1) ... [2024-11-02 12:22:51,476 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:22:51" (1/1) ... [2024-11-02 12:22:51,544 INFO L138 Inliner]: procedures = 132, calls = 214, calls flagged for inlining = 56, calls inlined = 48, statements flattened = 940 [2024-11-02 12:22:51,544 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:22:51,545 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:22:51,545 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:22:51,545 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:22:51,563 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:22:51" (1/1) ... [2024-11-02 12:22:51,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:22:51" (1/1) ... [2024-11-02 12:22:51,577 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:22:51" (1/1) ... [2024-11-02 12:22:51,577 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:22:51" (1/1) ... [2024-11-02 12:22:51,597 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:22:51" (1/1) ... [2024-11-02 12:22:51,607 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:22:51" (1/1) ... [2024-11-02 12:22:51,613 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:22:51" (1/1) ... [2024-11-02 12:22:51,617 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:22:51" (1/1) ... [2024-11-02 12:22:51,625 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:22:51,626 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:22:51,627 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:22:51,627 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:22:51,628 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:22:51" (1/1) ... [2024-11-02 12:22:51,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:22:51,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb99fe2d-ea66-439b-8eab-7910cccab04b/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:22:51,670 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb99fe2d-ea66-439b-8eab-7910cccab04b/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:22:51,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb99fe2d-ea66-439b-8eab-7910cccab04b/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:22:51,727 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-02 12:22:51,727 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-02 12:22:51,727 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-02 12:22:51,727 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-02 12:22:51,727 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-02 12:22:51,727 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-02 12:22:51,728 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-02 12:22:51,728 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-02 12:22:51,728 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-02 12:22:51,728 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-02 12:22:51,728 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-02 12:22:51,728 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-02 12:22:51,729 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-02 12:22:51,729 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-02 12:22:51,729 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-02 12:22:51,729 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-02 12:22:51,730 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-02 12:22:51,730 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-02 12:22:51,730 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-02 12:22:51,730 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-02 12:22:51,730 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-02 12:22:51,731 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-02 12:22:51,731 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-02 12:22:51,731 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-02 12:22:51,731 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-02 12:22:51,731 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-02 12:22:51,732 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-02 12:22:51,732 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-02 12:22:51,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:22:51,732 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-02 12:22:51,732 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-02 12:22:51,733 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-02 12:22:51,733 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-02 12:22:51,733 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-02 12:22:51,733 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-02 12:22:51,733 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-02 12:22:51,733 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-02 12:22:51,734 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-02 12:22:51,734 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-02 12:22:51,734 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-02 12:22:51,734 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-02 12:22:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-02 12:22:51,759 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-02 12:22:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2024-11-02 12:22:51,759 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2024-11-02 12:22:51,760 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-02 12:22:51,760 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-02 12:22:51,760 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-02 12:22:51,760 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-02 12:22:51,761 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-02 12:22:51,761 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-02 12:22:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-02 12:22:51,762 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-02 12:22:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:22:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-02 12:22:51,763 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-02 12:22:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-02 12:22:51,763 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-02 12:22:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:22:51,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:22:52,005 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:22:52,008 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:22:53,148 INFO L? ?]: Removed 505 outVars from TransFormulas that were not future-live. [2024-11-02 12:22:53,150 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:22:53,985 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:22:53,987 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:22:53,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:22:53 BoogieIcfgContainer [2024-11-02 12:22:53,988 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:22:53,990 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:22:53,990 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:22:53,995 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:22:53,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:22:50" (1/3) ... [2024-11-02 12:22:53,997 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4afe2e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:22:53, skipping insertion in model container [2024-11-02 12:22:53,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:22:51" (2/3) ... [2024-11-02 12:22:53,999 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4afe2e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:22:53, skipping insertion in model container [2024-11-02 12:22:53,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:22:53" (3/3) ... [2024-11-02 12:22:54,001 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product29.cil.c [2024-11-02 12:22:54,021 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:22:54,022 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:22:54,116 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:22:54,126 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;@19aaebfd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:22:54,127 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:22:54,133 INFO L276 IsEmpty]: Start isEmpty. Operand has 213 states, 120 states have (on average 1.3083333333333333) internal successors, (157), 125 states have internal predecessors, (157), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-02 12:22:54,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-02 12:22:54,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:22:54,148 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:22:54,149 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:22:54,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:22:54,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1202159575, now seen corresponding path program 1 times [2024-11-02 12:22:54,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:22:54,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451864453] [2024-11-02 12:22:54,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:22:54,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:22:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:22:54,684 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-02 12:22:54,685 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:22:54,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451864453] [2024-11-02 12:22:54,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451864453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:22:54,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:22:54,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:22:54,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958897448] [2024-11-02 12:22:54,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:22:54,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 12:22:54,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:22:54,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 12:22:54,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:22:54,724 INFO L87 Difference]: Start difference. First operand has 213 states, 120 states have (on average 1.3083333333333333) internal successors, (157), 125 states have internal predecessors, (157), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-02 12:22:54,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:22:54,916 INFO L93 Difference]: Finished difference Result 334 states and 437 transitions. [2024-11-02 12:22:54,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 12:22:54,922 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2024-11-02 12:22:54,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:22:54,939 INFO L225 Difference]: With dead ends: 334 [2024-11-02 12:22:54,939 INFO L226 Difference]: Without dead ends: 210 [2024-11-02 12:22:54,949 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 [2024-11-02 12:22:54,953 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:22:54,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 241 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:22:54,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-11-02 12:22:55,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2024-11-02 12:22:55,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 118 states have (on average 1.2796610169491525) internal successors, (151), 122 states have internal predecessors, (151), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-02 12:22:55,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 276 transitions. [2024-11-02 12:22:55,046 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 276 transitions. Word has length 71 [2024-11-02 12:22:55,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:22:55,047 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 276 transitions. [2024-11-02 12:22:55,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-02 12:22:55,048 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 276 transitions. [2024-11-02 12:22:55,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-02 12:22:55,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:22:55,053 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:22:55,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:22:55,053 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:22:55,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:22:55,057 INFO L85 PathProgramCache]: Analyzing trace with hash 415411634, now seen corresponding path program 1 times [2024-11-02 12:22:55,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:22:55,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157416086] [2024-11-02 12:22:55,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:22:55,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:22:55,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:22:55,380 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-02 12:22:55,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:22:55,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157416086] [2024-11-02 12:22:55,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157416086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:22:55,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:22:55,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:22:55,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145357048] [2024-11-02 12:22:55,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:22:55,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:22:55,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:22:55,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:22:55,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:22:55,387 INFO L87 Difference]: Start difference. First operand 210 states and 276 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-02 12:22:55,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:22:55,600 INFO L93 Difference]: Finished difference Result 330 states and 422 transitions. [2024-11-02 12:22:55,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:22:55,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2024-11-02 12:22:55,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:22:55,610 INFO L225 Difference]: With dead ends: 330 [2024-11-02 12:22:55,610 INFO L226 Difference]: Without dead ends: 212 [2024-11-02 12:22:55,611 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 [2024-11-02 12:22:55,612 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 0 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:22:55,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 475 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:22:55,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-11-02 12:22:55,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2024-11-02 12:22:55,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 120 states have (on average 1.275) internal successors, (153), 124 states have internal predecessors, (153), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-02 12:22:55,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 278 transitions. [2024-11-02 12:22:55,647 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 278 transitions. Word has length 72 [2024-11-02 12:22:55,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:22:55,648 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 278 transitions. [2024-11-02 12:22:55,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-02 12:22:55,648 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 278 transitions. [2024-11-02 12:22:55,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-02 12:22:55,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:22:55,655 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:22:55,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:22:55,655 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:22:55,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:22:55,656 INFO L85 PathProgramCache]: Analyzing trace with hash 2137266748, now seen corresponding path program 1 times [2024-11-02 12:22:55,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:22:55,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102614692] [2024-11-02 12:22:55,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:22:55,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:22:55,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:22:55,901 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-02 12:22:55,901 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:22:55,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102614692] [2024-11-02 12:22:55,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102614692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:22:55,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:22:55,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:22:55,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600430054] [2024-11-02 12:22:55,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:22:55,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:22:55,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:22:55,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:22:55,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:22:55,905 INFO L87 Difference]: Start difference. First operand 212 states and 278 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-02 12:22:56,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:22:56,091 INFO L93 Difference]: Finished difference Result 459 states and 623 transitions. [2024-11-02 12:22:56,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:22:56,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 77 [2024-11-02 12:22:56,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:22:56,095 INFO L225 Difference]: With dead ends: 459 [2024-11-02 12:22:56,096 INFO L226 Difference]: Without dead ends: 265 [2024-11-02 12:22:56,097 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 [2024-11-02 12:22:56,099 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 59 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:22:56,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 485 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:22:56,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-02 12:22:56,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 260. [2024-11-02 12:22:56,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 154 states have (on average 1.3506493506493507) internal successors, (208), 158 states have internal predecessors, (208), 77 states have call successors, (77), 28 states have call predecessors, (77), 28 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-02 12:22:56,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 361 transitions. [2024-11-02 12:22:56,126 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 361 transitions. Word has length 77 [2024-11-02 12:22:56,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:22:56,126 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 361 transitions. [2024-11-02 12:22:56,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-02 12:22:56,127 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 361 transitions. [2024-11-02 12:22:56,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-02 12:22:56,130 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:22:56,131 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:22:56,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 12:22:56,131 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:22:56,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:22:56,132 INFO L85 PathProgramCache]: Analyzing trace with hash 2142435379, now seen corresponding path program 1 times [2024-11-02 12:22:56,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:22:56,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821189638] [2024-11-02 12:22:56,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:22:56,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:22:56,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:22:56,401 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-02 12:22:56,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:22:56,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821189638] [2024-11-02 12:22:56,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821189638] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:22:56,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121480029] [2024-11-02 12:22:56,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:22:56,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:22:56,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb99fe2d-ea66-439b-8eab-7910cccab04b/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:22:56,405 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb99fe2d-ea66-439b-8eab-7910cccab04b/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:22:56,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb99fe2d-ea66-439b-8eab-7910cccab04b/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:22:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:22:56,888 INFO L255 TraceCheckSpWp]: Trace formula consists of 930 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:22:56,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:22:57,012 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-02 12:22:57,014 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:22:57,159 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-02 12:22:57,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2121480029] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:22:57,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [324592341] [2024-11-02 12:22:57,189 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2024-11-02 12:22:57,189 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:22:57,194 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:22:57,202 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:22:57,203 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs