./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec7_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/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_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec7_product29.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/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_840c6bb4-6e55-4857-92bb-8be01d88ccd4/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 2586c6a9c5639b30d1f21b288976c8c026e2c567887902cc846265d5507c0a62 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 08:18:36,831 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 08:18:36,906 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 08:18:36,911 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 08:18:36,911 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 08:18:36,944 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 08:18:36,945 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 08:18:36,945 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 08:18:36,946 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 08:18:36,947 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 08:18:36,947 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 08:18:36,948 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 08:18:36,948 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 08:18:36,949 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 08:18:36,949 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 08:18:36,950 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 08:18:36,950 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 08:18:36,951 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 08:18:36,951 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 08:18:36,952 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 08:18:36,952 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 08:18:36,953 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 08:18:36,954 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 08:18:36,954 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 08:18:36,955 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 08:18:36,955 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 08:18:36,956 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 08:18:36,956 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 08:18:36,956 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 08:18:36,957 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 08:18:36,957 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 08:18:36,958 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 08:18:36,958 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 08:18:36,958 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 08:18:36,959 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 08:18:36,959 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 08:18:36,960 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 08:18:36,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 08:18:36,960 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 08:18:36,960 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 08:18:36,961 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 08:18:36,961 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 08:18:36,961 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 08:18:36,961 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 08:18:36,961 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 08:18:36,962 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 08:18:36,962 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 08:18:36,962 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_840c6bb4-6e55-4857-92bb-8be01d88ccd4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2586c6a9c5639b30d1f21b288976c8c026e2c567887902cc846265d5507c0a62 [2023-12-02 08:18:37,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 08:18:37,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 08:18:37,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 08:18:37,259 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 08:18:37,259 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 08:18:37,260 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec7_product29.cil.c [2023-12-02 08:18:40,063 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 08:18:40,386 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 08:18:40,387 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/sv-benchmarks/c/product-lines/email_spec7_product29.cil.c [2023-12-02 08:18:40,410 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/data/e0796c1ae/fd7033d48abe4dfaa63e6c52e35ddbf8/FLAGbccb45bd9 [2023-12-02 08:18:40,426 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/data/e0796c1ae/fd7033d48abe4dfaa63e6c52e35ddbf8 [2023-12-02 08:18:40,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 08:18:40,430 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 08:18:40,432 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 08:18:40,432 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 08:18:40,438 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 08:18:40,439 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:18:40" (1/1) ... [2023-12-02 08:18:40,440 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fc3e695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:40, skipping insertion in model container [2023-12-02 08:18:40,440 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:18:40" (1/1) ... [2023-12-02 08:18:40,514 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 08:18:40,848 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_840c6bb4-6e55-4857-92bb-8be01d88ccd4/sv-benchmarks/c/product-lines/email_spec7_product29.cil.c[16949,16962] [2023-12-02 08:18:41,062 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 08:18:41,077 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 08:18:41,087 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-12-02 08:18:41,088 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [368] [2023-12-02 08:18:41,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [734] [2023-12-02 08:18:41,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [743] [2023-12-02 08:18:41,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptVerify_spec.i","") [959] [2023-12-02 08:18:41,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [978] [2023-12-02 08:18:41,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1361] [2023-12-02 08:18:41,090 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2425] [2023-12-02 08:18:41,090 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2563] [2023-12-02 08:18:41,090 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2580] [2023-12-02 08:18:41,090 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2977] [2023-12-02 08:18:41,120 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_840c6bb4-6e55-4857-92bb-8be01d88ccd4/sv-benchmarks/c/product-lines/email_spec7_product29.cil.c[16949,16962] [2023-12-02 08:18:41,174 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 08:18:41,202 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:18:41,210 INFO L206 MainTranslator]: Completed translation [2023-12-02 08:18:41,210 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:41 WrapperNode [2023-12-02 08:18:41,210 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 08:18:41,211 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 08:18:41,211 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 08:18:41,211 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 08:18:41,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:41" (1/1) ... [2023-12-02 08:18:41,246 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:41" (1/1) ... [2023-12-02 08:18:41,323 INFO L138 Inliner]: procedures = 131, calls = 224, calls flagged for inlining = 55, calls inlined = 47, statements flattened = 932 [2023-12-02 08:18:41,323 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 08:18:41,324 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 08:18:41,324 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 08:18:41,325 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 08:18:41,336 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:41" (1/1) ... [2023-12-02 08:18:41,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:41" (1/1) ... [2023-12-02 08:18:41,344 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:41" (1/1) ... [2023-12-02 08:18:41,344 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:41" (1/1) ... [2023-12-02 08:18:41,373 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:41" (1/1) ... [2023-12-02 08:18:41,385 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:41" (1/1) ... [2023-12-02 08:18:41,393 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:41" (1/1) ... [2023-12-02 08:18:41,399 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:41" (1/1) ... [2023-12-02 08:18:41,411 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 08:18:41,412 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 08:18:41,412 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 08:18:41,412 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 08:18:41,413 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:41" (1/1) ... [2023-12-02 08:18:41,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 08:18:41,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:18:41,455 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 08:18:41,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 08:18:41,483 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-02 08:18:41,483 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-02 08:18:41,483 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-02 08:18:41,483 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-02 08:18:41,484 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-02 08:18:41,484 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-02 08:18:41,484 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-02 08:18:41,484 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-02 08:18:41,484 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-02 08:18:41,484 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-02 08:18:41,484 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 08:18:41,485 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 08:18:41,485 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 08:18:41,485 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 08:18:41,485 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-02 08:18:41,485 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-02 08:18:41,485 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 08:18:41,486 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 08:18:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-02 08:18:41,486 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-02 08:18:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-02 08:18:41,486 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-02 08:18:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 08:18:41,486 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 08:18:41,487 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 08:18:41,487 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 08:18:41,487 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 08:18:41,487 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 08:18:41,487 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 08:18:41,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 08:18:41,487 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-02 08:18:41,488 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-02 08:18:41,488 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-02 08:18:41,488 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-02 08:18:41,488 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-02 08:18:41,488 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-02 08:18:41,488 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 08:18:41,488 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 08:18:41,489 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 08:18:41,489 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 08:18:41,489 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 08:18:41,489 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 08:18:41,489 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-02 08:18:41,489 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-02 08:18:41,489 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2023-12-02 08:18:41,490 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2023-12-02 08:18:41,490 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 08:18:41,490 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 08:18:41,490 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-02 08:18:41,490 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-02 08:18:41,490 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 08:18:41,490 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 08:18:41,491 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 08:18:41,491 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 08:18:41,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 08:18:41,491 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 08:18:41,491 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 08:18:41,491 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-02 08:18:41,491 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-02 08:18:41,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 08:18:41,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 08:18:41,662 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 08:18:41,664 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 08:18:42,444 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 08:18:42,875 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 08:18:42,876 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 08:18:42,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:18:42 BoogieIcfgContainer [2023-12-02 08:18:42,877 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 08:18:42,879 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 08:18:42,880 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 08:18:42,882 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 08:18:42,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:18:40" (1/3) ... [2023-12-02 08:18:42,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14396561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:18:42, skipping insertion in model container [2023-12-02 08:18:42,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:41" (2/3) ... [2023-12-02 08:18:42,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14396561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:18:42, skipping insertion in model container [2023-12-02 08:18:42,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:18:42" (3/3) ... [2023-12-02 08:18:42,885 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_product29.cil.c [2023-12-02 08:18:42,900 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 08:18:42,900 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 08:18:42,947 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 08:18:42,954 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;@7c601fcb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 08:18:42,954 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 08:18:42,959 INFO L276 IsEmpty]: Start isEmpty. Operand has 210 states, 118 states have (on average 1.305084745762712) internal successors, (154), 123 states have internal predecessors, (154), 62 states have call successors, (62), 28 states have call predecessors, (62), 28 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-02 08:18:42,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-02 08:18:42,974 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:18:42,975 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:18:42,975 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:18:42,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:18:42,980 INFO L85 PathProgramCache]: Analyzing trace with hash -123971368, now seen corresponding path program 1 times [2023-12-02 08:18:42,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:18:42,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490123223] [2023-12-02 08:18:42,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:18:42,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:18:43,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:18:43,336 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 08:18:43,337 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:18:43,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490123223] [2023-12-02 08:18:43,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490123223] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:18:43,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:18:43,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 08:18:43,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53947062] [2023-12-02 08:18:43,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:18:43,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 08:18:43,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:18:43,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 08:18:43,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 08:18:43,379 INFO L87 Difference]: Start difference. First operand has 210 states, 118 states have (on average 1.305084745762712) internal successors, (154), 123 states have internal predecessors, (154), 62 states have call successors, (62), 28 states have call predecessors, (62), 28 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 08:18:43,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:18:43,521 INFO L93 Difference]: Finished difference Result 328 states and 427 transitions. [2023-12-02 08:18:43,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 08:18:43,524 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 95 [2023-12-02 08:18:43,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:18:43,536 INFO L225 Difference]: With dead ends: 328 [2023-12-02 08:18:43,536 INFO L226 Difference]: Without dead ends: 207 [2023-12-02 08:18:43,541 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 08:18:43,545 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 08:18:43,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 237 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 08:18:43,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-12-02 08:18:43,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2023-12-02 08:18:43,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 116 states have (on average 1.2758620689655173) internal successors, (148), 120 states have internal predecessors, (148), 62 states have call successors, (62), 28 states have call predecessors, (62), 28 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2023-12-02 08:18:43,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 271 transitions. [2023-12-02 08:18:43,601 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 271 transitions. Word has length 95 [2023-12-02 08:18:43,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:18:43,603 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 271 transitions. [2023-12-02 08:18:43,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 08:18:43,604 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 271 transitions. [2023-12-02 08:18:43,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-02 08:18:43,609 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:18:43,610 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:18:43,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 08:18:43,610 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:18:43,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:18:43,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1197429441, now seen corresponding path program 1 times [2023-12-02 08:18:43,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:18:43,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254012705] [2023-12-02 08:18:43,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:18:43,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:18:43,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:18:43,827 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 08:18:43,827 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:18:43,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254012705] [2023-12-02 08:18:43,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254012705] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:18:43,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:18:43,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 08:18:43,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670418429] [2023-12-02 08:18:43,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:18:43,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 08:18:43,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:18:43,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 08:18:43,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 08:18:43,831 INFO L87 Difference]: Start difference. First operand 207 states and 271 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-02 08:18:43,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:18:43,969 INFO L93 Difference]: Finished difference Result 324 states and 412 transitions. [2023-12-02 08:18:43,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 08:18:43,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 85 [2023-12-02 08:18:43,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:18:43,973 INFO L225 Difference]: With dead ends: 324 [2023-12-02 08:18:43,973 INFO L226 Difference]: Without dead ends: 209 [2023-12-02 08:18:43,975 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 08:18:43,977 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 0 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 08:18:43,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 467 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 08:18:43,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-12-02 08:18:43,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2023-12-02 08:18:43,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 118 states have (on average 1.271186440677966) internal successors, (150), 122 states have internal predecessors, (150), 62 states have call successors, (62), 28 states have call predecessors, (62), 28 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2023-12-02 08:18:44,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 273 transitions. [2023-12-02 08:18:44,002 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 273 transitions. Word has length 85 [2023-12-02 08:18:44,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:18:44,002 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 273 transitions. [2023-12-02 08:18:44,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-02 08:18:44,003 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 273 transitions. [2023-12-02 08:18:44,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-02 08:18:44,006 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:18:44,006 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:18:44,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 08:18:44,007 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:18:44,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:18:44,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1217569269, now seen corresponding path program 1 times [2023-12-02 08:18:44,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:18:44,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043010792] [2023-12-02 08:18:44,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:18:44,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:18:44,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:18:44,150 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 08:18:44,150 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:18:44,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043010792] [2023-12-02 08:18:44,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043010792] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:18:44,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:18:44,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 08:18:44,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483591405] [2023-12-02 08:18:44,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:18:44,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 08:18:44,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:18:44,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 08:18:44,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 08:18:44,153 INFO L87 Difference]: Start difference. First operand 209 states and 273 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 08:18:44,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:18:44,283 INFO L93 Difference]: Finished difference Result 453 states and 613 transitions. [2023-12-02 08:18:44,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 08:18:44,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 101 [2023-12-02 08:18:44,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:18:44,287 INFO L225 Difference]: With dead ends: 453 [2023-12-02 08:18:44,287 INFO L226 Difference]: Without dead ends: 262 [2023-12-02 08:18:44,288 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 08:18:44,290 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 59 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 08:18:44,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 465 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 08:18:44,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2023-12-02 08:18:44,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 257. [2023-12-02 08:18:44,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 152 states have (on average 1.3486842105263157) internal successors, (205), 156 states have internal predecessors, (205), 76 states have call successors, (76), 28 states have call predecessors, (76), 28 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2023-12-02 08:18:44,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 356 transitions. [2023-12-02 08:18:44,316 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 356 transitions. Word has length 101 [2023-12-02 08:18:44,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:18:44,316 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 356 transitions. [2023-12-02 08:18:44,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 08:18:44,317 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 356 transitions. [2023-12-02 08:18:44,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-02 08:18:44,320 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:18:44,320 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:18:44,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 08:18:44,320 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:18:44,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:18:44,321 INFO L85 PathProgramCache]: Analyzing trace with hash -486673857, now seen corresponding path program 1 times [2023-12-02 08:18:44,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:18:44,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277894771] [2023-12-02 08:18:44,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:18:44,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:18:44,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:18:44,534 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 08:18:44,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:18:44,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277894771] [2023-12-02 08:18:44,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277894771] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:18:44,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420213487] [2023-12-02 08:18:44,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:18:44,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:18:44,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:18:44,537 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:18:44,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 08:18:44,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:18:44,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 08:18:44,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:18:44,956 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 08:18:44,956 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:18:45,033 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 08:18:45,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420213487] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:18:45,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1111740309] [2023-12-02 08:18:45,057 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2023-12-02 08:18:45,057 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:18:45,061 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:18:45,066 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:18:45,067 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:19:25,511 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 08:19:25,671 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-12-02 08:19:25,827 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:20:19,956 WARN L293 SmtUtils]: Spent 8.95s on a formula simplification. DAG size of input: 494 DAG size of output: 494 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:20:33,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1111740309] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:20:33,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 08:20:33,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 08:20:33,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784774483] [2023-12-02 08:20:33,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:20:33,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 08:20:33,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:20:33,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 08:20:33,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 08:20:33,795 INFO L87 Difference]: Start difference. First operand 257 states and 356 transitions. Second operand has 24 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 7 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2023-12-02 08:20:43,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:20:43,849 INFO L93 Difference]: Finished difference Result 561 states and 812 transitions. [2023-12-02 08:20:43,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 08:20:43,850 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 7 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) Word has length 91 [2023-12-02 08:20:43,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:20:43,854 INFO L225 Difference]: With dead ends: 561 [2023-12-02 08:20:43,854 INFO L226 Difference]: Without dead ends: 322 [2023-12-02 08:20:43,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 67.9s TimeCoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 08:20:43,857 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 58 mSDsluCounter, 3378 mSDsCounter, 0 mSdLazyCounter, 2325 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 3626 SdHoareTripleChecker+Invalid, 2334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2023-12-02 08:20:43,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 3626 Invalid, 2334 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2325 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2023-12-02 08:20:43,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2023-12-02 08:20:43,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 280. [2023-12-02 08:20:43,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 174 states have (on average 1.367816091954023) internal successors, (238), 178 states have internal predecessors, (238), 76 states have call successors, (76), 29 states have call predecessors, (76), 29 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2023-12-02 08:20:43,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 389 transitions. [2023-12-02 08:20:43,928 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 389 transitions. Word has length 91 [2023-12-02 08:20:43,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:20:43,929 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 389 transitions. [2023-12-02 08:20:43,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 2.875) internal successors, (46), 15 states have internal predecessors, (46), 7 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2023-12-02 08:20:43,929 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 389 transitions. [2023-12-02 08:20:43,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 08:20:43,932 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:20:43,933 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:20:43,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 08:20:44,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:20:44,134 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:20:44,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:20:44,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1603015765, now seen corresponding path program 1 times [2023-12-02 08:20:44,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:20:44,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575440209] [2023-12-02 08:20:44,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:20:44,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:20:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:20:44,208 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 08:20:44,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:20:44,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575440209] [2023-12-02 08:20:44,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575440209] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:20:44,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:20:44,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 08:20:44,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201705201] [2023-12-02 08:20:44,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:20:44,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 08:20:44,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:20:44,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 08:20:44,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 08:20:44,211 INFO L87 Difference]: Start difference. First operand 280 states and 389 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 08:20:44,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:20:44,408 INFO L93 Difference]: Finished difference Result 663 states and 958 transitions. [2023-12-02 08:20:44,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 08:20:44,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 96 [2023-12-02 08:20:44,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:20:44,412 INFO L225 Difference]: With dead ends: 663 [2023-12-02 08:20:44,412 INFO L226 Difference]: Without dead ends: 407 [2023-12-02 08:20:44,414 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 08:20:44,415 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 57 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 08:20:44,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 479 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 08:20:44,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2023-12-02 08:20:44,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 402. [2023-12-02 08:20:44,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 265 states have (on average 1.4264150943396225) internal successors, (378), 269 states have internal predecessors, (378), 107 states have call successors, (107), 29 states have call predecessors, (107), 29 states have return successors, (106), 105 states have call predecessors, (106), 106 states have call successors, (106) [2023-12-02 08:20:44,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 591 transitions. [2023-12-02 08:20:44,511 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 591 transitions. Word has length 96 [2023-12-02 08:20:44,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:20:44,512 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 591 transitions. [2023-12-02 08:20:44,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 08:20:44,512 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 591 transitions. [2023-12-02 08:20:44,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-02 08:20:44,515 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:20:44,516 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:20:44,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 08:20:44,516 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:20:44,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:20:44,516 INFO L85 PathProgramCache]: Analyzing trace with hash 553837910, now seen corresponding path program 1 times [2023-12-02 08:20:44,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:20:44,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078490469] [2023-12-02 08:20:44,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:20:44,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:20:44,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:20:44,689 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-02 08:20:44,690 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:20:44,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078490469] [2023-12-02 08:20:44,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078490469] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:20:44,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041029337] [2023-12-02 08:20:44,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:20:44,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:20:44,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:20:44,691 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:20:44,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 08:20:45,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:20:45,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 1146 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 08:20:45,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:20:45,044 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-02 08:20:45,044 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:20:45,122 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-02 08:20:45,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041029337] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:20:45,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [445348057] [2023-12-02 08:20:45,127 INFO L159 IcfgInterpreter]: Started Sifa with 87 locations of interest [2023-12-02 08:20:45,127 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:20:45,128 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:20:45,128 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:20:45,128 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:21:39,281 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 08:21:39,439 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 475 for LOIs [2023-12-02 08:21:41,457 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:22:01,423 WARN L293 SmtUtils]: Spent 6.21s on a formula simplification. DAG size of input: 475 DAG size of output: 476 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:22:10,774 WARN L293 SmtUtils]: Spent 9.15s on a formula simplification. DAG size of input: 505 DAG size of output: 500 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:22:49,087 WARN L293 SmtUtils]: Spent 9.17s on a formula simplification. DAG size of input: 498 DAG size of output: 498 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:23:17,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [445348057] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:23:17,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 08:23:17,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 08:23:17,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44348513] [2023-12-02 08:23:17,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:23:17,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 08:23:17,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:23:17,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 08:23:17,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 08:23:17,583 INFO L87 Difference]: Start difference. First operand 402 states and 591 transitions. Second operand has 28 states, 19 states have (on average 2.736842105263158) internal successors, (52), 18 states have internal predecessors, (52), 8 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) [2023-12-02 08:23:30,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:23:30,383 INFO L93 Difference]: Finished difference Result 822 states and 1239 transitions. [2023-12-02 08:23:30,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 08:23:30,384 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 2.736842105263158) internal successors, (52), 18 states have internal predecessors, (52), 8 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) Word has length 108 [2023-12-02 08:23:30,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:23:30,387 INFO L225 Difference]: With dead ends: 822 [2023-12-02 08:23:30,387 INFO L226 Difference]: Without dead ends: 483 [2023-12-02 08:23:30,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 96.1s TimeCoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 08:23:30,389 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 101 mSDsluCounter, 3035 mSDsCounter, 0 mSdLazyCounter, 2462 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 3256 SdHoareTripleChecker+Invalid, 2470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2023-12-02 08:23:30,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 3256 Invalid, 2470 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2462 Invalid, 0 Unknown, 0 Unchecked, 12.5s Time] [2023-12-02 08:23:30,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2023-12-02 08:23:30,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 416. [2023-12-02 08:23:30,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 277 states have (on average 1.4259927797833936) internal successors, (395), 281 states have internal predecessors, (395), 108 states have call successors, (108), 30 states have call predecessors, (108), 30 states have return successors, (107), 106 states have call predecessors, (107), 107 states have call successors, (107) [2023-12-02 08:23:30,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 610 transitions. [2023-12-02 08:23:30,498 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 610 transitions. Word has length 108 [2023-12-02 08:23:30,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:23:30,498 INFO L495 AbstractCegarLoop]: Abstraction has 416 states and 610 transitions. [2023-12-02 08:23:30,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 2.736842105263158) internal successors, (52), 18 states have internal predecessors, (52), 8 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) [2023-12-02 08:23:30,498 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 610 transitions. [2023-12-02 08:23:30,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-02 08:23:30,500 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:23:30,500 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:23:30,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 08:23:30,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:23:30,701 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:23:30,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:23:30,701 INFO L85 PathProgramCache]: Analyzing trace with hash 707211440, now seen corresponding path program 1 times [2023-12-02 08:23:30,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:23:30,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606900956] [2023-12-02 08:23:30,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:23:30,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:23:30,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:23:30,840 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 08:23:30,840 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:23:30,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606900956] [2023-12-02 08:23:30,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606900956] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:23:30,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565006335] [2023-12-02 08:23:30,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:23:30,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:23:30,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:23:30,842 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:23:30,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 08:23:31,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:23:31,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 1224 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 08:23:31,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:23:31,197 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 08:23:31,198 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:23:31,274 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 08:23:31,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565006335] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:23:31,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1509325965] [2023-12-02 08:23:31,279 INFO L159 IcfgInterpreter]: Started Sifa with 92 locations of interest [2023-12-02 08:23:31,279 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:23:31,279 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:23:31,280 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:23:31,280 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:24:51,496 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 08:24:51,651 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 542 for LOIs [2023-12-02 08:24:53,279 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 551 for LOIs [2023-12-02 08:24:55,116 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 466 for LOIs [2023-12-02 08:24:55,914 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-12-02 08:24:56,080 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:25:51,491 WARN L293 SmtUtils]: Spent 10.63s on a formula simplification. DAG size of input: 579 DAG size of output: 574 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:26:02,669 WARN L293 SmtUtils]: Spent 10.82s on a formula simplification. DAG size of input: 579 DAG size of output: 574 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:26:50,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1509325965] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:26:50,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 08:26:50,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 08:26:50,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619128814] [2023-12-02 08:26:50,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:26:50,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 08:26:50,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:26:50,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 08:26:50,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 08:26:50,014 INFO L87 Difference]: Start difference. First operand 416 states and 610 transitions. Second operand has 33 states, 19 states have (on average 2.736842105263158) internal successors, (52), 18 states have internal predecessors, (52), 10 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (23), 10 states have call predecessors, (23), 10 states have call successors, (23) [2023-12-02 08:27:10,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:27:10,879 INFO L93 Difference]: Finished difference Result 847 states and 1274 transitions. [2023-12-02 08:27:10,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 08:27:10,880 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.736842105263158) internal successors, (52), 18 states have internal predecessors, (52), 10 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (23), 10 states have call predecessors, (23), 10 states have call successors, (23) Word has length 111 [2023-12-02 08:27:10,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:27:10,884 INFO L225 Difference]: With dead ends: 847 [2023-12-02 08:27:10,884 INFO L226 Difference]: Without dead ends: 508 [2023-12-02 08:27:10,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 113.9s TimeCoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 08:27:10,886 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 90 mSDsluCounter, 3625 mSDsCounter, 0 mSdLazyCounter, 3451 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 3843 SdHoareTripleChecker+Invalid, 3460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2023-12-02 08:27:10,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 3843 Invalid, 3460 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 3451 Invalid, 0 Unknown, 0 Unchecked, 20.5s Time] [2023-12-02 08:27:10,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2023-12-02 08:27:11,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 452. [2023-12-02 08:27:11,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 307 states have (on average 1.4234527687296417) internal successors, (437), 311 states have internal predecessors, (437), 111 states have call successors, (111), 33 states have call predecessors, (111), 33 states have return successors, (110), 109 states have call predecessors, (110), 110 states have call successors, (110) [2023-12-02 08:27:11,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 658 transitions. [2023-12-02 08:27:11,077 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 658 transitions. Word has length 111 [2023-12-02 08:27:11,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:27:11,077 INFO L495 AbstractCegarLoop]: Abstraction has 452 states and 658 transitions. [2023-12-02 08:27:11,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.736842105263158) internal successors, (52), 18 states have internal predecessors, (52), 10 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (23), 10 states have call predecessors, (23), 10 states have call successors, (23) [2023-12-02 08:27:11,078 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 658 transitions. [2023-12-02 08:27:11,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-02 08:27:11,080 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:27:11,080 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:27:11,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 08:27:11,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-12-02 08:27:11,281 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:27:11,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:27:11,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1771639908, now seen corresponding path program 1 times [2023-12-02 08:27:11,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:27:11,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287014893] [2023-12-02 08:27:11,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:27:11,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:27:11,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:27:11,419 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 08:27:11,419 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:27:11,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287014893] [2023-12-02 08:27:11,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287014893] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:27:11,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914548862] [2023-12-02 08:27:11,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:27:11,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:27:11,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:27:11,421 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:27:11,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 08:27:11,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:27:11,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 1087 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 08:27:11,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:27:11,727 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 08:27:11,728 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:27:11,792 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 08:27:11,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914548862] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:27:11,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1758910718] [2023-12-02 08:27:11,796 INFO L159 IcfgInterpreter]: Started Sifa with 84 locations of interest [2023-12-02 08:27:11,796 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:27:11,796 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:27:11,797 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:27:11,797 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:28:07,009 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 08:28:07,163 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-12-02 08:28:07,321 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:29:00,606 WARN L293 SmtUtils]: Spent 8.85s on a formula simplification. DAG size of input: 502 DAG size of output: 502 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:29:42,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1758910718] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:29:42,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 08:29:42,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [4, 4, 4] total 37 [2023-12-02 08:29:42,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270921857] [2023-12-02 08:29:42,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:29:42,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 08:29:42,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:29:42,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 08:29:42,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 08:29:42,598 INFO L87 Difference]: Start difference. First operand 452 states and 658 transitions. Second operand has 32 states, 24 states have (on average 2.25) internal successors, (54), 23 states have internal predecessors, (54), 7 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2023-12-02 08:29:54,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:29:54,979 INFO L93 Difference]: Finished difference Result 861 states and 1289 transitions. [2023-12-02 08:29:54,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 08:29:54,980 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 24 states have (on average 2.25) internal successors, (54), 23 states have internal predecessors, (54), 7 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) Word has length 99 [2023-12-02 08:29:54,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:29:54,983 INFO L225 Difference]: With dead ends: 861 [2023-12-02 08:29:54,983 INFO L226 Difference]: Without dead ends: 522 [2023-12-02 08:29:54,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 95.3s TimeCoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 08:29:54,985 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 174 mSDsluCounter, 3913 mSDsCounter, 0 mSdLazyCounter, 2860 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 4125 SdHoareTripleChecker+Invalid, 2868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2023-12-02 08:29:54,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 4125 Invalid, 2868 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2860 Invalid, 0 Unknown, 0 Unchecked, 12.0s Time] [2023-12-02 08:29:54,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2023-12-02 08:29:55,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 472. [2023-12-02 08:29:55,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 327 states have (on average 1.4281345565749235) internal successors, (467), 331 states have internal predecessors, (467), 111 states have call successors, (111), 33 states have call predecessors, (111), 33 states have return successors, (110), 109 states have call predecessors, (110), 110 states have call successors, (110) [2023-12-02 08:29:55,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 688 transitions. [2023-12-02 08:29:55,176 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 688 transitions. Word has length 99 [2023-12-02 08:29:55,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:29:55,176 INFO L495 AbstractCegarLoop]: Abstraction has 472 states and 688 transitions. [2023-12-02 08:29:55,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 24 states have (on average 2.25) internal successors, (54), 23 states have internal predecessors, (54), 7 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2023-12-02 08:29:55,176 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 688 transitions. [2023-12-02 08:29:55,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-02 08:29:55,179 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:29:55,179 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:29:55,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-02 08:29:55,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:29:55,382 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:29:55,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:29:55,383 INFO L85 PathProgramCache]: Analyzing trace with hash -2143457884, now seen corresponding path program 1 times [2023-12-02 08:29:55,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:29:55,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887262780] [2023-12-02 08:29:55,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:55,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:29:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:55,872 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-12-02 08:29:55,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:29:55,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887262780] [2023-12-02 08:29:55,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887262780] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:29:55,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:29:55,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-02 08:29:55,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55300374] [2023-12-02 08:29:55,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:29:55,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 08:29:55,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:29:55,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 08:29:55,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-02 08:29:55,874 INFO L87 Difference]: Start difference. First operand 472 states and 688 transitions. Second operand has 12 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 6 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) [2023-12-02 08:29:56,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:29:56,943 INFO L93 Difference]: Finished difference Result 911 states and 1310 transitions. [2023-12-02 08:29:56,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-02 08:29:56,943 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 6 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) Word has length 113 [2023-12-02 08:29:56,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:29:56,948 INFO L225 Difference]: With dead ends: 911 [2023-12-02 08:29:56,948 INFO L226 Difference]: Without dead ends: 800 [2023-12-02 08:29:56,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2023-12-02 08:29:56,950 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 252 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 1914 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 08:29:56,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 1914 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1217 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 08:29:56,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2023-12-02 08:29:57,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 792. [2023-12-02 08:29:57,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 530 states have (on average 1.439622641509434) internal successors, (763), 538 states have internal predecessors, (763), 203 states have call successors, (203), 59 states have call predecessors, (203), 58 states have return successors, (199), 198 states have call predecessors, (199), 199 states have call successors, (199) [2023-12-02 08:29:57,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1165 transitions. [2023-12-02 08:29:57,246 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1165 transitions. Word has length 113 [2023-12-02 08:29:57,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:29:57,247 INFO L495 AbstractCegarLoop]: Abstraction has 792 states and 1165 transitions. [2023-12-02 08:29:57,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 6 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) [2023-12-02 08:29:57,247 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1165 transitions. [2023-12-02 08:29:57,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-02 08:29:57,249 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:29:57,249 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:29:57,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 08:29:57,250 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:29:57,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:29:57,250 INFO L85 PathProgramCache]: Analyzing trace with hash -358502571, now seen corresponding path program 1 times [2023-12-02 08:29:57,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:29:57,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762313103] [2023-12-02 08:29:57,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:57,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:29:57,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:58,023 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-02 08:29:58,023 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:29:58,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762313103] [2023-12-02 08:29:58,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762313103] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:29:58,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:29:58,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-02 08:29:58,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777514710] [2023-12-02 08:29:58,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:29:58,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-02 08:29:58,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:29:58,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-02 08:29:58,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2023-12-02 08:29:58,025 INFO L87 Difference]: Start difference. First operand 792 states and 1165 transitions. Second operand has 20 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 16 states have internal predecessors, (50), 11 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) [2023-12-02 08:29:59,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:29:59,761 INFO L93 Difference]: Finished difference Result 1117 states and 1598 transitions. [2023-12-02 08:29:59,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-02 08:29:59,761 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 16 states have internal predecessors, (50), 11 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) Word has length 102 [2023-12-02 08:29:59,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:29:59,767 INFO L225 Difference]: With dead ends: 1117 [2023-12-02 08:29:59,767 INFO L226 Difference]: Without dead ends: 1113 [2023-12-02 08:29:59,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=1090, Unknown=0, NotChecked=0, Total=1260 [2023-12-02 08:29:59,769 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 393 mSDsluCounter, 2973 mSDsCounter, 0 mSdLazyCounter, 2840 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 3230 SdHoareTripleChecker+Invalid, 2965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 2840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-02 08:29:59,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 3230 Invalid, 2965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 2840 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-02 08:29:59,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2023-12-02 08:30:00,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 1099. [2023-12-02 08:30:00,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 703 states have (on average 1.3783783783783783) internal successors, (969), 716 states have internal predecessors, (969), 299 states have call successors, (299), 96 states have call predecessors, (299), 96 states have return successors, (298), 290 states have call predecessors, (298), 288 states have call successors, (298) [2023-12-02 08:30:00,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 1566 transitions. [2023-12-02 08:30:00,124 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 1566 transitions. Word has length 102 [2023-12-02 08:30:00,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:30:00,124 INFO L495 AbstractCegarLoop]: Abstraction has 1099 states and 1566 transitions. [2023-12-02 08:30:00,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 16 states have internal predecessors, (50), 11 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) [2023-12-02 08:30:00,125 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 1566 transitions. [2023-12-02 08:30:00,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-02 08:30:00,129 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:30:00,129 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:30:00,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 08:30:00,129 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:30:00,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:30:00,129 INFO L85 PathProgramCache]: Analyzing trace with hash 176433880, now seen corresponding path program 1 times [2023-12-02 08:30:00,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:30:00,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938121174] [2023-12-02 08:30:00,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:30:00,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:30:00,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:30:00,279 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 08:30:00,280 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:30:00,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938121174] [2023-12-02 08:30:00,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938121174] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:30:00,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315596411] [2023-12-02 08:30:00,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:30:00,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:30:00,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:30:00,281 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:30:00,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840c6bb4-6e55-4857-92bb-8be01d88ccd4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 08:30:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:30:00,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 1138 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 08:30:00,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:30:00,606 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 08:30:00,606 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:30:00,683 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 08:30:00,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315596411] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:30:00,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [605817937] [2023-12-02 08:30:00,687 INFO L159 IcfgInterpreter]: Started Sifa with 86 locations of interest [2023-12-02 08:30:00,687 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:30:00,688 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:30:00,688 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:30:00,688 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:30:59,577 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 08:30:59,735 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 249 for LOIs [2023-12-02 08:31:03,247 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 223 for LOIs [2023-12-02 08:31:03,373 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 475 for LOIs [2023-12-02 08:31:05,398 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 247 for LOIs [2023-12-02 08:31:09,187 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 252 for LOIs [2023-12-02 08:31:12,674 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 215 for LOIs [2023-12-02 08:31:12,816 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 235 for LOIs [2023-12-02 08:31:13,018 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 233 for LOIs [2023-12-02 08:31:13,182 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 225 for LOIs [2023-12-02 08:31:13,334 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 228 for LOIs [2023-12-02 08:31:13,497 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:31:34,045 WARN L293 SmtUtils]: Spent 6.16s on a formula simplification. DAG size of input: 475 DAG size of output: 476 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:31:43,354 WARN L293 SmtUtils]: Spent 9.14s on a formula simplification. DAG size of input: 505 DAG size of output: 501 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:33:02,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [605817937] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:33:02,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 08:33:02,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [57] imperfect sequences [5, 5, 5] total 63 [2023-12-02 08:33:02,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063538452] [2023-12-02 08:33:02,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:33:02,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2023-12-02 08:33:02,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:33:02,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2023-12-02 08:33:02,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=3712, Unknown=0, NotChecked=0, Total=3906 [2023-12-02 08:33:02,227 INFO L87 Difference]: Start difference. First operand 1099 states and 1566 transitions. Second operand has 58 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 33 states have internal predecessors, (52), 17 states have call successors, (23), 12 states have call predecessors, (23), 9 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20)