./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec7_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_1ac57cad-646b-407d-96fd-ff99d939bee7/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac57cad-646b-407d-96fd-ff99d939bee7/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac57cad-646b-407d-96fd-ff99d939bee7/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac57cad-646b-407d-96fd-ff99d939bee7/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec7_product29.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac57cad-646b-407d-96fd-ff99d939bee7/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac57cad-646b-407d-96fd-ff99d939bee7/bin/utaipan-verify-NcY6lQBIFX --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 2586c6a9c5639b30d1f21b288976c8c026e2c567887902cc846265d5507c0a62 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:42:52,512 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:42:52,607 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac57cad-646b-407d-96fd-ff99d939bee7/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:42:52,613 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:42:52,614 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:42:52,663 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:42:52,668 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:42:52,669 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:42:52,670 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:42:52,675 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:42:52,676 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:42:52,676 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:42:52,677 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:42:52,679 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:42:52,679 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:42:52,680 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:42:52,680 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:42:52,680 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:42:52,681 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:42:52,681 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:42:52,682 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:42:52,682 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:42:52,684 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:42:52,684 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:42:52,685 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:42:52,685 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:42:52,699 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:42:52,700 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:42:52,700 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:42:52,701 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:42:52,702 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:42:52,702 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:42:52,703 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:42:52,703 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:42:52,703 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:42:52,703 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:42:52,704 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:42:52,704 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:42:52,704 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:42:52,704 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:42:52,705 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:42:52,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:42:52,705 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:42:52,705 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:42:52,706 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:42:52,706 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_1ac57cad-646b-407d-96fd-ff99d939bee7/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac57cad-646b-407d-96fd-ff99d939bee7/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2586c6a9c5639b30d1f21b288976c8c026e2c567887902cc846265d5507c0a62 [2023-11-12 00:42:53,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:42:53,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:42:53,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:42:53,100 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:42:53,102 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:42:53,104 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac57cad-646b-407d-96fd-ff99d939bee7/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/product-lines/email_spec7_product29.cil.c [2023-11-12 00:42:56,207 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:42:56,662 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:42:56,664 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac57cad-646b-407d-96fd-ff99d939bee7/sv-benchmarks/c/product-lines/email_spec7_product29.cil.c [2023-11-12 00:42:56,708 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac57cad-646b-407d-96fd-ff99d939bee7/bin/utaipan-verify-NcY6lQBIFX/data/2d1f41cd0/306b8f824b5740c0b965c8c21f2e8724/FLAGc0b06797e [2023-11-12 00:42:56,724 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac57cad-646b-407d-96fd-ff99d939bee7/bin/utaipan-verify-NcY6lQBIFX/data/2d1f41cd0/306b8f824b5740c0b965c8c21f2e8724 [2023-11-12 00:42:56,727 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:42:56,729 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:42:56,731 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:42:56,733 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:42:56,738 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:42:56,739 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:42:56" (1/1) ... [2023-11-12 00:42:56,741 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16df5103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:56, skipping insertion in model container [2023-11-12 00:42:56,741 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:42:56" (1/1) ... [2023-11-12 00:42:56,841 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:42:57,294 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac57cad-646b-407d-96fd-ff99d939bee7/sv-benchmarks/c/product-lines/email_spec7_product29.cil.c[16949,16962] [2023-11-12 00:42:57,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:42:57,601 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:42:57,612 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-11-12 00:42:57,613 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [368] [2023-11-12 00:42:57,614 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [734] [2023-11-12 00:42:57,614 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [743] [2023-11-12 00:42:57,614 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptVerify_spec.i","") [959] [2023-11-12 00:42:57,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [978] [2023-11-12 00:42:57,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1361] [2023-11-12 00:42:57,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2425] [2023-11-12 00:42:57,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2563] [2023-11-12 00:42:57,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2580] [2023-11-12 00:42:57,616 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2977] [2023-11-12 00:42:57,683 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac57cad-646b-407d-96fd-ff99d939bee7/sv-benchmarks/c/product-lines/email_spec7_product29.cil.c[16949,16962] [2023-11-12 00:42:57,764 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:42:57,801 WARN L672 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:42:57,808 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:42:57,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:57 WrapperNode [2023-11-12 00:42:57,808 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:42:57,809 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:42:57,810 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:42:57,810 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:42:57,818 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:57" (1/1) ... [2023-11-12 00:42:57,878 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:57" (1/1) ... [2023-11-12 00:42:57,963 INFO L138 Inliner]: procedures = 131, calls = 224, calls flagged for inlining = 55, calls inlined = 47, statements flattened = 920 [2023-11-12 00:42:57,964 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:42:57,964 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:42:57,965 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:42:57,965 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:42:58,007 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:57" (1/1) ... [2023-11-12 00:42:58,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:57" (1/1) ... [2023-11-12 00:42:58,015 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:57" (1/1) ... [2023-11-12 00:42:58,015 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:57" (1/1) ... [2023-11-12 00:42:58,075 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:57" (1/1) ... [2023-11-12 00:42:58,085 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:57" (1/1) ... [2023-11-12 00:42:58,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:57" (1/1) ... [2023-11-12 00:42:58,125 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:57" (1/1) ... [2023-11-12 00:42:58,135 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:42:58,136 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:42:58,136 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:42:58,136 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:42:58,137 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:57" (1/1) ... [2023-11-12 00:42:58,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:42:58,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac57cad-646b-407d-96fd-ff99d939bee7/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:42:58,213 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac57cad-646b-407d-96fd-ff99d939bee7/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:42:58,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac57cad-646b-407d-96fd-ff99d939bee7/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:42:58,255 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-11-12 00:42:58,256 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-11-12 00:42:58,256 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-11-12 00:42:58,256 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-11-12 00:42:58,256 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-12 00:42:58,257 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-12 00:42:58,257 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-11-12 00:42:58,258 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-11-12 00:42:58,258 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-12 00:42:58,258 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-12 00:42:58,258 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-12 00:42:58,258 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-12 00:42:58,259 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-12 00:42:58,259 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-12 00:42:58,260 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-12 00:42:58,260 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-12 00:42:58,262 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-12 00:42:58,262 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-12 00:42:58,262 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-12 00:42:58,262 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-12 00:42:58,262 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-11-12 00:42:58,263 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-11-12 00:42:58,263 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-12 00:42:58,263 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-12 00:42:58,263 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-12 00:42:58,263 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-12 00:42:58,263 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-12 00:42:58,263 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-12 00:42:58,263 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-12 00:42:58,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:42:58,264 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-11-12 00:42:58,264 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-11-12 00:42:58,264 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-11-12 00:42:58,264 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-11-12 00:42:58,264 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-11-12 00:42:58,264 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-11-12 00:42:58,264 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-12 00:42:58,265 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-12 00:42:58,265 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-12 00:42:58,265 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-12 00:42:58,265 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-12 00:42:58,265 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-12 00:42:58,265 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-11-12 00:42:58,265 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-11-12 00:42:58,266 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2023-11-12 00:42:58,266 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2023-11-12 00:42:58,266 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-12 00:42:58,266 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-12 00:42:58,266 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-12 00:42:58,267 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-12 00:42:58,268 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-12 00:42:58,268 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-12 00:42:58,268 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-12 00:42:58,268 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-12 00:42:58,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:42:58,268 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-12 00:42:58,269 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-12 00:42:58,269 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-11-12 00:42:58,269 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-11-12 00:42:58,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:42:58,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:42:58,512 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:42:58,514 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:42:59,576 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:43:00,282 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:43:00,282 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:43:00,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:43:00 BoogieIcfgContainer [2023-11-12 00:43:00,286 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:43:00,289 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:43:00,290 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:43:00,293 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:43:00,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:42:56" (1/3) ... [2023-11-12 00:43:00,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@247e3e33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:43:00, skipping insertion in model container [2023-11-12 00:43:00,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:57" (2/3) ... [2023-11-12 00:43:00,297 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@247e3e33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:43:00, skipping insertion in model container [2023-11-12 00:43:00,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:43:00" (3/3) ... [2023-11-12 00:43:00,299 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_product29.cil.c [2023-11-12 00:43:00,322 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:43:00,323 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:43:00,397 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:43:00,406 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@31311dd8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:43:00,407 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:43:00,415 INFO L276 IsEmpty]: Start isEmpty. Operand has 210 states, 118 states have (on average 1.305084745762712) internal successors, (154), 123 states have internal predecessors, (154), 62 states have call successors, (62), 28 states have call predecessors, (62), 28 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2023-11-12 00:43:00,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-12 00:43:00,443 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:43:00,445 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:43:00,445 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:43:00,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:43:00,453 INFO L85 PathProgramCache]: Analyzing trace with hash 416231731, now seen corresponding path program 1 times [2023-11-12 00:43:00,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:43:00,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081014342] [2023-11-12 00:43:00,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:43:00,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:43:00,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:43:01,039 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-12 00:43:01,040 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:43:01,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081014342] [2023-11-12 00:43:01,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081014342] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:43:01,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:43:01,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:43:01,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089666417] [2023-11-12 00:43:01,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:43:01,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:43:01,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:43:01,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:43:01,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:43:01,122 INFO L87 Difference]: Start difference. First operand has 210 states, 118 states have (on average 1.305084745762712) internal successors, (154), 123 states have internal predecessors, (154), 62 states have call successors, (62), 28 states have call predecessors, (62), 28 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-12 00:43:01,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:43:01,378 INFO L93 Difference]: Finished difference Result 328 states and 427 transitions. [2023-11-12 00:43:01,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:43:01,380 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 95 [2023-11-12 00:43:01,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:43:01,394 INFO L225 Difference]: With dead ends: 328 [2023-11-12 00:43:01,394 INFO L226 Difference]: Without dead ends: 207 [2023-11-12 00:43:01,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:43:01,404 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:43:01,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 237 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:43:01,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-11-12 00:43:01,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2023-11-12 00:43:01,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 116 states have (on average 1.2758620689655173) internal successors, (148), 120 states have internal predecessors, (148), 62 states have call successors, (62), 28 states have call predecessors, (62), 28 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2023-11-12 00:43:01,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 271 transitions. [2023-11-12 00:43:01,476 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 271 transitions. Word has length 95 [2023-11-12 00:43:01,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:43:01,478 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 271 transitions. [2023-11-12 00:43:01,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-12 00:43:01,479 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 271 transitions. [2023-11-12 00:43:01,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-12 00:43:01,485 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:43:01,485 INFO L195 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] [2023-11-12 00:43:01,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:43:01,486 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:43:01,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:43:01,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1942441406, now seen corresponding path program 1 times [2023-11-12 00:43:01,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:43:01,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246827567] [2023-11-12 00:43:01,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:43:01,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:43:01,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:43:01,722 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-12 00:43:01,722 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:43:01,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246827567] [2023-11-12 00:43:01,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246827567] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:43:01,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:43:01,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:43:01,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136605152] [2023-11-12 00:43:01,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:43:01,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:43:01,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:43:01,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:43:01,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:43:01,727 INFO L87 Difference]: Start difference. First operand 207 states and 271 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, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-12 00:43:01,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:43:01,977 INFO L93 Difference]: Finished difference Result 324 states and 412 transitions. [2023-11-12 00:43:01,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:43:01,978 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, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 85 [2023-11-12 00:43:01,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:43:01,981 INFO L225 Difference]: With dead ends: 324 [2023-11-12 00:43:01,981 INFO L226 Difference]: Without dead ends: 209 [2023-11-12 00:43:01,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:43:01,985 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 0 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:43:01,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 467 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:43:01,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-11-12 00:43:02,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2023-11-12 00:43:02,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 118 states have (on average 1.271186440677966) internal successors, (150), 122 states have internal predecessors, (150), 62 states have call successors, (62), 28 states have call predecessors, (62), 28 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2023-11-12 00:43:02,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 273 transitions. [2023-11-12 00:43:02,009 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 273 transitions. Word has length 85 [2023-11-12 00:43:02,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:43:02,010 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 273 transitions. [2023-11-12 00:43:02,010 INFO L496 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, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-12 00:43:02,010 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 273 transitions. [2023-11-12 00:43:02,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-12 00:43:02,012 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:43:02,013 INFO L195 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] [2023-11-12 00:43:02,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:43:02,013 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:43:02,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:43:02,014 INFO L85 PathProgramCache]: Analyzing trace with hash -399501726, now seen corresponding path program 1 times [2023-11-12 00:43:02,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:43:02,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212052888] [2023-11-12 00:43:02,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:43:02,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:43:02,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:43:02,187 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-12 00:43:02,188 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:43:02,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212052888] [2023-11-12 00:43:02,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212052888] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:43:02,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:43:02,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:43:02,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614242330] [2023-11-12 00:43:02,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:43:02,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:43:02,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:43:02,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:43:02,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:43:02,191 INFO L87 Difference]: Start difference. First operand 209 states and 273 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-12 00:43:02,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:43:02,319 INFO L93 Difference]: Finished difference Result 453 states and 613 transitions. [2023-11-12 00:43:02,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:43:02,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 101 [2023-11-12 00:43:02,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:43:02,325 INFO L225 Difference]: With dead ends: 453 [2023-11-12 00:43:02,326 INFO L226 Difference]: Without dead ends: 262 [2023-11-12 00:43:02,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:43:02,335 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 59 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:43:02,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 465 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:43:02,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2023-11-12 00:43:02,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 257. [2023-11-12 00:43:02,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 152 states have (on average 1.3486842105263157) internal successors, (205), 156 states have internal predecessors, (205), 76 states have call successors, (76), 28 states have call predecessors, (76), 28 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-12 00:43:02,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 356 transitions. [2023-11-12 00:43:02,387 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 356 transitions. Word has length 101 [2023-11-12 00:43:02,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:43:02,388 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 356 transitions. [2023-11-12 00:43:02,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-12 00:43:02,389 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 356 transitions. [2023-11-12 00:43:02,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-12 00:43:02,391 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:43:02,391 INFO L195 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] [2023-11-12 00:43:02,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:43:02,392 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:43:02,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:43:02,392 INFO L85 PathProgramCache]: Analyzing trace with hash 453141054, now seen corresponding path program 1 times [2023-11-12 00:43:02,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:43:02,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058873288] [2023-11-12 00:43:02,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:43:02,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:43:02,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:43:02,720 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-12 00:43:02,720 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:43:02,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058873288] [2023-11-12 00:43:02,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058873288] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:43:02,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231371480] [2023-11-12 00:43:02,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:43:02,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:43:02,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac57cad-646b-407d-96fd-ff99d939bee7/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:43:02,725 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac57cad-646b-407d-96fd-ff99d939bee7/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:43:02,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac57cad-646b-407d-96fd-ff99d939bee7/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:43:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:43:03,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:43:03,127 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:43:03,193 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-12 00:43:03,194 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:43:03,278 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-12 00:43:03,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231371480] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:43:03,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [100410451] [2023-11-12 00:43:03,302 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2023-11-12 00:43:03,303 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:43:03,307 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:43:03,313 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:43:03,314 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:43:52,536 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-11-12 00:43:52,752 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-11-12 00:43:52,984 INFO L180 IcfgInterpreter]: Interpretation finished