./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 76fb98768a82c6e881c4461160153969b956a6a73a8217d33a39b93921ba72b5 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:37:04,365 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:37:04,430 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 15:37:04,435 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:37:04,435 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:37:04,460 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:37:04,460 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:37:04,461 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:37:04,462 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:37:04,462 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:37:04,463 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:37:04,463 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:37:04,464 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:37:04,464 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:37:04,465 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:37:04,465 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:37:04,466 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:37:04,466 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:37:04,467 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:37:04,467 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:37:04,468 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:37:04,468 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:37:04,469 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:37:04,470 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:37:04,470 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:37:04,470 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:37:04,471 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:37:04,471 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:37:04,472 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:37:04,472 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:37:04,472 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:37:04,473 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:37:04,473 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:37:04,473 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:37:04,474 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:37:04,474 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:37:04,474 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:37:04,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:37:04,475 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:37:04,475 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:37:04,475 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:37:04,475 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:37:04,475 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:37:04,476 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:37:04,476 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:37:04,476 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:37:04,476 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:37:04,476 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_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 76fb98768a82c6e881c4461160153969b956a6a73a8217d33a39b93921ba72b5 [2023-12-02 15:37:04,697 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:37:04,717 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:37:04,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:37:04,721 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:37:04,721 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:37:04,722 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec1_product34.cil.c [2023-12-02 15:37:07,380 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:37:07,666 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:37:07,666 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/sv-benchmarks/c/product-lines/email_spec1_product34.cil.c [2023-12-02 15:37:07,686 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/data/a3f44ad26/aeb9339c2ccb4921a903641cf8fc2377/FLAG71fdfee34 [2023-12-02 15:37:07,698 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/data/a3f44ad26/aeb9339c2ccb4921a903641cf8fc2377 [2023-12-02 15:37:07,700 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:37:07,701 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:37:07,702 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:37:07,702 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:37:07,707 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:37:07,707 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:37:07" (1/1) ... [2023-12-02 15:37:07,708 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2649f5e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:07, skipping insertion in model container [2023-12-02 15:37:07,708 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:37:07" (1/1) ... [2023-12-02 15:37:07,784 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:37:07,935 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_994efa3e-c0ec-4f64-be65-94fb92a92514/sv-benchmarks/c/product-lines/email_spec1_product34.cil.c[2480,2493] [2023-12-02 15:37:08,214 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:37:08,229 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:37:08,240 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"AddressBookEncrypt_spec.i","") [48] [2023-12-02 15:37:08,241 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [90] [2023-12-02 15:37:08,242 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [99] [2023-12-02 15:37:08,242 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [117] [2023-12-02 15:37:08,242 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [483] [2023-12-02 15:37:08,242 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1563] [2023-12-02 15:37:08,242 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1601] [2023-12-02 15:37:08,243 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2021] [2023-12-02 15:37:08,243 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2250] [2023-12-02 15:37:08,243 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2387] [2023-12-02 15:37:08,243 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2784] [2023-12-02 15:37:08,247 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_994efa3e-c0ec-4f64-be65-94fb92a92514/sv-benchmarks/c/product-lines/email_spec1_product34.cil.c[2480,2493] [2023-12-02 15:37:08,327 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:37:08,358 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:37:08,366 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:37:08,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:08 WrapperNode [2023-12-02 15:37:08,367 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:37:08,368 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:37:08,368 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:37:08,368 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:37:08,376 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:08" (1/1) ... [2023-12-02 15:37:08,403 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:08" (1/1) ... [2023-12-02 15:37:08,453 INFO L138 Inliner]: procedures = 134, calls = 237, calls flagged for inlining = 62, calls inlined = 59, statements flattened = 1122 [2023-12-02 15:37:08,453 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:37:08,454 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:37:08,454 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:37:08,454 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:37:08,461 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:08" (1/1) ... [2023-12-02 15:37:08,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:08" (1/1) ... [2023-12-02 15:37:08,467 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:08" (1/1) ... [2023-12-02 15:37:08,467 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:08" (1/1) ... [2023-12-02 15:37:08,494 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:08" (1/1) ... [2023-12-02 15:37:08,506 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:08" (1/1) ... [2023-12-02 15:37:08,514 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:08" (1/1) ... [2023-12-02 15:37:08,519 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:08" (1/1) ... [2023-12-02 15:37:08,531 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:37:08,532 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:37:08,532 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:37:08,532 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:37:08,533 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:08" (1/1) ... [2023-12-02 15:37:08,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:37:08,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:37:08,568 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:37:08,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:37:08,607 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-02 15:37:08,607 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-02 15:37:08,608 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-02 15:37:08,608 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-02 15:37:08,608 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-02 15:37:08,608 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-02 15:37:08,609 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-02 15:37:08,609 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-02 15:37:08,609 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-02 15:37:08,609 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-02 15:37:08,609 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 15:37:08,609 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 15:37:08,610 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 15:37:08,610 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 15:37:08,610 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-02 15:37:08,610 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-02 15:37:08,610 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 15:37:08,611 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 15:37:08,611 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-02 15:37:08,611 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-02 15:37:08,611 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-02 15:37:08,611 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-02 15:37:08,612 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 15:37:08,612 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 15:37:08,612 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 15:37:08,612 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 15:37:08,612 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 15:37:08,612 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 15:37:08,612 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 15:37:08,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:37:08,613 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-02 15:37:08,613 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-02 15:37:08,613 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-02 15:37:08,613 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-02 15:37:08,613 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-02 15:37:08,613 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-02 15:37:08,613 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 15:37:08,614 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 15:37:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 15:37:08,614 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 15:37:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 15:37:08,614 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 15:37:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2023-12-02 15:37:08,614 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2023-12-02 15:37:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-02 15:37:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-02 15:37:08,615 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 15:37:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 15:37:08,615 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-02 15:37:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-02 15:37:08,615 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 15:37:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 15:37:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 15:37:08,616 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 15:37:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:37:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 15:37:08,616 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 15:37:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-02 15:37:08,616 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-02 15:37:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:37:08,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:37:08,879 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:37:08,882 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:37:09,693 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:37:10,287 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:37:10,287 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 15:37:10,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:37:10 BoogieIcfgContainer [2023-12-02 15:37:10,289 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:37:10,291 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:37:10,291 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:37:10,295 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:37:10,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:37:07" (1/3) ... [2023-12-02 15:37:10,296 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6accd22a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:37:10, skipping insertion in model container [2023-12-02 15:37:10,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:08" (2/3) ... [2023-12-02 15:37:10,296 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6accd22a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:37:10, skipping insertion in model container [2023-12-02 15:37:10,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:37:10" (3/3) ... [2023-12-02 15:37:10,298 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product34.cil.c [2023-12-02 15:37:10,318 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:37:10,318 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 15:37:10,376 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:37:10,383 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;@79c88996, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:37:10,383 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 15:37:10,389 INFO L276 IsEmpty]: Start isEmpty. Operand has 231 states, 130 states have (on average 1.2923076923076924) internal successors, (168), 135 states have internal predecessors, (168), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2023-12-02 15:37:10,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 15:37:10,404 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:37:10,405 INFO L195 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] [2023-12-02 15:37:10,405 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:37:10,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:37:10,411 INFO L85 PathProgramCache]: Analyzing trace with hash -988465855, now seen corresponding path program 1 times [2023-12-02 15:37:10,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:37:10,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444847410] [2023-12-02 15:37:10,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:37:10,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:37:10,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:37:10,744 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 15:37:10,744 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:37:10,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444847410] [2023-12-02 15:37:10,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444847410] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:37:10,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:37:10,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:37:10,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817628600] [2023-12-02 15:37:10,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:37:10,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 15:37:10,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:37:10,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 15:37:10,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 15:37:10,785 INFO L87 Difference]: Start difference. First operand has 231 states, 130 states have (on average 1.2923076923076924) internal successors, (168), 135 states have internal predecessors, (168), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) 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) [2023-12-02 15:37:10,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:37:10,932 INFO L93 Difference]: Finished difference Result 370 states and 491 transitions. [2023-12-02 15:37:10,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 15:37:10,934 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 [2023-12-02 15:37:10,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:37:10,948 INFO L225 Difference]: With dead ends: 370 [2023-12-02 15:37:10,948 INFO L226 Difference]: Without dead ends: 228 [2023-12-02 15:37:10,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 15:37:10,958 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:37:10,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 263 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:37:10,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2023-12-02 15:37:11,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2023-12-02 15:37:11,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 128 states have (on average 1.265625) internal successors, (162), 132 states have internal predecessors, (162), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-02 15:37:11,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 303 transitions. [2023-12-02 15:37:11,022 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 303 transitions. Word has length 71 [2023-12-02 15:37:11,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:37:11,024 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 303 transitions. [2023-12-02 15:37:11,024 INFO L496 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) [2023-12-02 15:37:11,024 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 303 transitions. [2023-12-02 15:37:11,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 15:37:11,029 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:37:11,029 INFO L195 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] [2023-12-02 15:37:11,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 15:37:11,029 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:37:11,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:37:11,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1456343297, now seen corresponding path program 1 times [2023-12-02 15:37:11,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:37:11,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30857683] [2023-12-02 15:37:11,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:37:11,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:37:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:37:11,236 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 15:37:11,237 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:37:11,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30857683] [2023-12-02 15:37:11,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30857683] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:37:11,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:37:11,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:37:11,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572700017] [2023-12-02 15:37:11,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:37:11,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:37:11,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:37:11,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:37:11,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:37:11,241 INFO L87 Difference]: Start difference. First operand 228 states and 303 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) [2023-12-02 15:37:11,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:37:11,375 INFO L93 Difference]: Finished difference Result 366 states and 476 transitions. [2023-12-02 15:37:11,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:37:11,376 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 [2023-12-02 15:37:11,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:37:11,380 INFO L225 Difference]: With dead ends: 366 [2023-12-02 15:37:11,380 INFO L226 Difference]: Without dead ends: 230 [2023-12-02 15:37:11,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:37:11,383 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 0 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:37:11,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 519 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:37:11,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2023-12-02 15:37:11,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2023-12-02 15:37:11,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 130 states have (on average 1.2615384615384615) internal successors, (164), 134 states have internal predecessors, (164), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-02 15:37:11,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 305 transitions. [2023-12-02 15:37:11,410 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 305 transitions. Word has length 72 [2023-12-02 15:37:11,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:37:11,411 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 305 transitions. [2023-12-02 15:37:11,411 INFO L496 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) [2023-12-02 15:37:11,411 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 305 transitions. [2023-12-02 15:37:11,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-02 15:37:11,415 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:37:11,415 INFO L195 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] [2023-12-02 15:37:11,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 15:37:11,415 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:37:11,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:37:11,416 INFO L85 PathProgramCache]: Analyzing trace with hash -729822984, now seen corresponding path program 1 times [2023-12-02 15:37:11,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:37:11,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802557189] [2023-12-02 15:37:11,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:37:11,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:37:11,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:37:11,528 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 15:37:11,528 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:37:11,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802557189] [2023-12-02 15:37:11,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802557189] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:37:11,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:37:11,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:37:11,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603266065] [2023-12-02 15:37:11,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:37:11,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:37:11,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:37:11,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:37:11,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:37:11,531 INFO L87 Difference]: Start difference. First operand 230 states and 305 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) [2023-12-02 15:37:11,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:37:11,664 INFO L93 Difference]: Finished difference Result 495 states and 677 transitions. [2023-12-02 15:37:11,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:37:11,664 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 [2023-12-02 15:37:11,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:37:11,668 INFO L225 Difference]: With dead ends: 495 [2023-12-02 15:37:11,668 INFO L226 Difference]: Without dead ends: 283 [2023-12-02 15:37:11,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:37:11,670 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 59 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:37:11,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 530 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:37:11,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-12-02 15:37:11,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 278. [2023-12-02 15:37:11,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 164 states have (on average 1.3353658536585367) internal successors, (219), 168 states have internal predecessors, (219), 85 states have call successors, (85), 28 states have call predecessors, (85), 28 states have return successors, (84), 83 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-02 15:37:11,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 388 transitions. [2023-12-02 15:37:11,698 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 388 transitions. Word has length 77 [2023-12-02 15:37:11,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:37:11,699 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 388 transitions. [2023-12-02 15:37:11,699 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, (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) [2023-12-02 15:37:11,699 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 388 transitions. [2023-12-02 15:37:11,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 15:37:11,702 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:37:11,702 INFO L195 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] [2023-12-02 15:37:11,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 15:37:11,703 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:37:11,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:37:11,703 INFO L85 PathProgramCache]: Analyzing trace with hash 211347437, now seen corresponding path program 1 times [2023-12-02 15:37:11,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:37:11,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418629403] [2023-12-02 15:37:11,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:37:11,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:37:11,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:37:11,900 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 15:37:11,901 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:37:11,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418629403] [2023-12-02 15:37:11,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418629403] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:37:11,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850094653] [2023-12-02 15:37:11,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:37:11,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:37:11,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:37:11,905 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:37:11,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 15:37:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:37:12,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 1068 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:37:12,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:37:12,347 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 15:37:12,347 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:37:12,416 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 15:37:12,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850094653] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:37:12,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [471500809] [2023-12-02 15:37:12,435 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2023-12-02 15:37:12,435 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:37:12,439 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:37:12,444 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:37:12,444 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:37:54,540 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2023-12-02 15:37:54,758 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2023-12-02 15:37:54,955 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 15:38:59,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [471500809] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:38:59,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 15:38:59,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 15:38:59,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902164617] [2023-12-02 15:38:59,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:38:59,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 15:38:59,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:38:59,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 15:38:59,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 15:38:59,808 INFO L87 Difference]: Start difference. First operand 278 states and 388 transitions. Second operand has 24 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-02 15:39:09,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:39:09,967 INFO L93 Difference]: Finished difference Result 603 states and 876 transitions. [2023-12-02 15:39:09,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 15:39:09,968 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 78 [2023-12-02 15:39:09,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:39:09,972 INFO L225 Difference]: With dead ends: 603 [2023-12-02 15:39:09,972 INFO L226 Difference]: Without dead ends: 343 [2023-12-02 15:39:09,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 64.8s TimeCoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 15:39:09,975 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 113 mSDsluCounter, 3711 mSDsCounter, 0 mSdLazyCounter, 2566 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 3985 SdHoareTripleChecker+Invalid, 2575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2023-12-02 15:39:09,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 3985 Invalid, 2575 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2566 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2023-12-02 15:39:09,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-12-02 15:39:10,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 301. [2023-12-02 15:39:10,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 186 states have (on average 1.3548387096774193) internal successors, (252), 190 states have internal predecessors, (252), 85 states have call successors, (85), 29 states have call predecessors, (85), 29 states have return successors, (84), 83 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-02 15:39:10,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 421 transitions. [2023-12-02 15:39:10,052 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 421 transitions. Word has length 78 [2023-12-02 15:39:10,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:39:10,053 INFO L495 AbstractCegarLoop]: Abstraction has 301 states and 421 transitions. [2023-12-02 15:39:10,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-02 15:39:10,053 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 421 transitions. [2023-12-02 15:39:10,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 15:39:10,055 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:39:10,056 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:39:10,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 15:39:10,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:39:10,257 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:39:10,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:39:10,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1183337827, now seen corresponding path program 1 times [2023-12-02 15:39:10,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:39:10,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946145708] [2023-12-02 15:39:10,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:39:10,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:39:10,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:39:10,350 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 15:39:10,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:39:10,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946145708] [2023-12-02 15:39:10,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946145708] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:39:10,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:39:10,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:39:10,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516203636] [2023-12-02 15:39:10,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:39:10,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:39:10,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:39:10,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:39:10,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:39:10,353 INFO L87 Difference]: Start difference. First operand 301 states and 421 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 15:39:10,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:39:10,564 INFO L93 Difference]: Finished difference Result 705 states and 1022 transitions. [2023-12-02 15:39:10,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:39:10,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 83 [2023-12-02 15:39:10,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:39:10,568 INFO L225 Difference]: With dead ends: 705 [2023-12-02 15:39:10,568 INFO L226 Difference]: Without dead ends: 428 [2023-12-02 15:39:10,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:39:10,571 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 57 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:39:10,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 527 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:39:10,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2023-12-02 15:39:10,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 423. [2023-12-02 15:39:10,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 277 states have (on average 1.4151624548736461) internal successors, (392), 281 states have internal predecessors, (392), 116 states have call successors, (116), 29 states have call predecessors, (116), 29 states have return successors, (115), 114 states have call predecessors, (115), 115 states have call successors, (115) [2023-12-02 15:39:10,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 623 transitions. [2023-12-02 15:39:10,725 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 623 transitions. Word has length 83 [2023-12-02 15:39:10,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:39:10,726 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 623 transitions. [2023-12-02 15:39:10,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 15:39:10,726 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 623 transitions. [2023-12-02 15:39:10,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 15:39:10,729 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:39:10,729 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:39:10,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 15:39:10,729 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:39:10,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:39:10,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1960685797, now seen corresponding path program 1 times [2023-12-02 15:39:10,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:39:10,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031086756] [2023-12-02 15:39:10,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:39:10,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:39:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:39:10,879 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 15:39:10,879 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:39:10,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031086756] [2023-12-02 15:39:10,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031086756] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:39:10,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311465510] [2023-12-02 15:39:10,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:39:10,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:39:10,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:39:10,881 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:39:10,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 15:39:11,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:39:11,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 1096 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:39:11,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:39:11,219 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 15:39:11,220 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:39:11,275 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 15:39:11,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311465510] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:39:11,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [372089577] [2023-12-02 15:39:11,280 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2023-12-02 15:39:11,280 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:39:11,280 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:39:11,281 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:39:11,281 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:40:08,447 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2023-12-02 15:40:08,615 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 488 for LOIs [2023-12-02 15:40:10,805 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 15:40:31,988 WARN L293 SmtUtils]: Spent 6.48s on a formula simplification. DAG size of input: 488 DAG size of output: 488 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:40:41,620 WARN L293 SmtUtils]: Spent 9.39s on a formula simplification. DAG size of input: 518 DAG size of output: 513 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:41:45,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [372089577] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:41:45,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 15:41:45,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 15:41:45,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877578462] [2023-12-02 15:41:45,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:41:45,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 15:41:45,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:41:45,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 15:41:45,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 15:41:45,610 INFO L87 Difference]: Start difference. First operand 423 states and 623 transitions. Second operand has 28 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2023-12-02 15:42:01,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:42:01,424 INFO L93 Difference]: Finished difference Result 864 states and 1303 transitions. [2023-12-02 15:42:01,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 15:42:01,424 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 84 [2023-12-02 15:42:01,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:42:01,428 INFO L225 Difference]: With dead ends: 864 [2023-12-02 15:42:01,428 INFO L226 Difference]: Without dead ends: 504 [2023-12-02 15:42:01,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 94.8s TimeCoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 15:42:01,430 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 76 mSDsluCounter, 3902 mSDsCounter, 0 mSdLazyCounter, 3034 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 4144 SdHoareTripleChecker+Invalid, 3042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 3034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2023-12-02 15:42:01,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 4144 Invalid, 3042 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 3034 Invalid, 0 Unknown, 0 Unchecked, 15.5s Time] [2023-12-02 15:42:01,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2023-12-02 15:42:01,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 437. [2023-12-02 15:42:01,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 289 states have (on average 1.4152249134948096) internal successors, (409), 293 states have internal predecessors, (409), 117 states have call successors, (117), 30 states have call predecessors, (117), 30 states have return successors, (116), 115 states have call predecessors, (116), 116 states have call successors, (116) [2023-12-02 15:42:01,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 642 transitions. [2023-12-02 15:42:01,546 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 642 transitions. Word has length 84 [2023-12-02 15:42:01,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:42:01,547 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 642 transitions. [2023-12-02 15:42:01,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2023-12-02 15:42:01,547 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 642 transitions. [2023-12-02 15:42:01,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-02 15:42:01,549 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:42:01,549 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:42:01,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 15:42:01,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:42:01,753 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:42:01,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:42:01,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1414095319, now seen corresponding path program 1 times [2023-12-02 15:42:01,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:42:01,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260529037] [2023-12-02 15:42:01,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:42:01,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:42:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:42:01,910 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 15:42:01,910 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:42:01,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260529037] [2023-12-02 15:42:01,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260529037] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:42:01,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302059304] [2023-12-02 15:42:01,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:42:01,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:42:01,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:42:01,912 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:42:01,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 15:42:02,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:42:02,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 1174 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:42:02,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:42:02,248 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 15:42:02,248 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:42:02,291 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 15:42:02,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302059304] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:42:02,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1233940535] [2023-12-02 15:42:02,295 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2023-12-02 15:42:02,295 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:42:02,295 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:42:02,295 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:42:02,296 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:43:34,122 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2023-12-02 15:43:34,289 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 555 for LOIs [2023-12-02 15:43:36,207 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 564 for LOIs [2023-12-02 15:43:38,056 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 479 for LOIs [2023-12-02 15:43:38,759 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2023-12-02 15:43:38,928 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 15:44:36,683 WARN L293 SmtUtils]: Spent 11.18s on a formula simplification. DAG size of input: 592 DAG size of output: 587 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:44:48,264 WARN L293 SmtUtils]: Spent 11.20s on a formula simplification. DAG size of input: 593 DAG size of output: 587 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:45:38,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1233940535] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:45:38,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 15:45:38,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 15:45:38,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398430274] [2023-12-02 15:45:38,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:45:38,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 15:45:38,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:45:38,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 15:45:38,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 15:45:38,046 INFO L87 Difference]: Start difference. First operand 437 states and 642 transitions. Second operand has 33 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2023-12-02 15:46:03,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:46:03,015 INFO L93 Difference]: Finished difference Result 889 states and 1338 transitions. [2023-12-02 15:46:03,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 15:46:03,016 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) Word has length 87 [2023-12-02 15:46:03,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:46:03,020 INFO L225 Difference]: With dead ends: 889 [2023-12-02 15:46:03,020 INFO L226 Difference]: Without dead ends: 529 [2023-12-02 15:46:03,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 119.1s TimeCoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 15:46:03,023 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 90 mSDsluCounter, 3973 mSDsCounter, 0 mSdLazyCounter, 3833 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 4214 SdHoareTripleChecker+Invalid, 3842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.6s IncrementalHoareTripleChecker+Time [2023-12-02 15:46:03,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 4214 Invalid, 3842 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 3833 Invalid, 0 Unknown, 0 Unchecked, 24.6s Time] [2023-12-02 15:46:03,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2023-12-02 15:46:03,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 473. [2023-12-02 15:46:03,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 319 states have (on average 1.4137931034482758) internal successors, (451), 323 states have internal predecessors, (451), 120 states have call successors, (120), 33 states have call predecessors, (120), 33 states have return successors, (119), 118 states have call predecessors, (119), 119 states have call successors, (119) [2023-12-02 15:46:03,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 690 transitions. [2023-12-02 15:46:03,223 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 690 transitions. Word has length 87 [2023-12-02 15:46:03,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:46:03,223 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 690 transitions. [2023-12-02 15:46:03,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2023-12-02 15:46:03,224 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 690 transitions. [2023-12-02 15:46:03,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-02 15:46:03,226 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:46:03,226 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:46:03,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 15:46:03,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:46:03,426 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:46:03,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:46:03,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1639062817, now seen corresponding path program 1 times [2023-12-02 15:46:03,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:46:03,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002268131] [2023-12-02 15:46:03,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:46:03,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:46:03,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:46:03,558 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 15:46:03,559 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:46:03,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002268131] [2023-12-02 15:46:03,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002268131] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:46:03,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363061807] [2023-12-02 15:46:03,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:46:03,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:46:03,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:46:03,560 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:46:03,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 15:46:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:46:03,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:46:03,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:46:03,897 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 15:46:03,897 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:46:03,954 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 15:46:03,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [363061807] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:46:03,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1826778334] [2023-12-02 15:46:03,957 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2023-12-02 15:46:03,957 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:46:03,958 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:46:03,958 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:46:03,958 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:47:03,043 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2023-12-02 15:47:03,210 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2023-12-02 15:47:03,381 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 15:48:41,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1826778334] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:48:41,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 15:48:41,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [4, 4, 4] total 37 [2023-12-02 15:48:41,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553496071] [2023-12-02 15:48:41,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:48:41,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 15:48:41,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:48:41,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 15:48:41,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 15:48:41,257 INFO L87 Difference]: Start difference. First operand 473 states and 690 transitions. Second operand has 32 states, 24 states have (on average 2.0416666666666665) internal successors, (49), 23 states have internal predecessors, (49), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-02 15:48:53,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:48:53,870 INFO L93 Difference]: Finished difference Result 903 states and 1353 transitions. [2023-12-02 15:48:53,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 15:48:53,870 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 24 states have (on average 2.0416666666666665) internal successors, (49), 23 states have internal predecessors, (49), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 86 [2023-12-02 15:48:53,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:48:53,873 INFO L225 Difference]: With dead ends: 903 [2023-12-02 15:48:53,873 INFO L226 Difference]: Without dead ends: 543 [2023-12-02 15:48:53,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 97.9s TimeCoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 15:48:53,875 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 123 mSDsluCounter, 3888 mSDsCounter, 0 mSdLazyCounter, 2732 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 4127 SdHoareTripleChecker+Invalid, 2740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:48:53,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 4127 Invalid, 2740 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2732 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2023-12-02 15:48:53,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2023-12-02 15:48:54,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 493. [2023-12-02 15:48:54,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 339 states have (on average 1.4188790560471976) internal successors, (481), 343 states have internal predecessors, (481), 120 states have call successors, (120), 33 states have call predecessors, (120), 33 states have return successors, (119), 118 states have call predecessors, (119), 119 states have call successors, (119) [2023-12-02 15:48:54,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 720 transitions. [2023-12-02 15:48:54,066 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 720 transitions. Word has length 86 [2023-12-02 15:48:54,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:48:54,067 INFO L495 AbstractCegarLoop]: Abstraction has 493 states and 720 transitions. [2023-12-02 15:48:54,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 24 states have (on average 2.0416666666666665) internal successors, (49), 23 states have internal predecessors, (49), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-02 15:48:54,067 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 720 transitions. [2023-12-02 15:48:54,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-02 15:48:54,068 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:48:54,068 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:48:54,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 15:48:54,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:48:54,273 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:48:54,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:48:54,273 INFO L85 PathProgramCache]: Analyzing trace with hash 329982711, now seen corresponding path program 1 times [2023-12-02 15:48:54,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:48:54,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728497623] [2023-12-02 15:48:54,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:48:54,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:48:54,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:48:54,424 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 15:48:54,424 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:48:54,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728497623] [2023-12-02 15:48:54,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728497623] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:48:54,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594700368] [2023-12-02 15:48:54,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:48:54,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:48:54,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:48:54,425 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:48:54,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994efa3e-c0ec-4f64-be65-94fb92a92514/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 15:48:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:48:54,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 1108 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 15:48:54,720 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:48:54,744 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 15:48:54,745 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:48:54,796 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 15:48:54,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594700368] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:48:54,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [874016885] [2023-12-02 15:48:54,800 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2023-12-02 15:48:54,800 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:48:54,800 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:48:54,800 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:48:54,800 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:49:43,482 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2023-12-02 15:49:43,649 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 281 for LOIs [2023-12-02 15:49:48,269 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 246 for LOIs [2023-12-02 15:49:48,445 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 488 for LOIs [2023-12-02 15:49:50,632 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 279 for LOIs [2023-12-02 15:49:55,893 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 238 for LOIs [2023-12-02 15:49:56,069 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 289 for LOIs [2023-12-02 15:50:06,280 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 258 for LOIs [2023-12-02 15:50:06,598 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 256 for LOIs [2023-12-02 15:50:06,868 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 237 for LOIs [2023-12-02 15:50:07,036 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 251 for LOIs [2023-12-02 15:50:07,256 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 15:50:29,055 WARN L293 SmtUtils]: Spent 6.58s on a formula simplification. DAG size of input: 488 DAG size of output: 488 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:50:39,003 WARN L293 SmtUtils]: Spent 9.75s on a formula simplification. DAG size of input: 518 DAG size of output: 513 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)