./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec7_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_d3eea5cc-3eaf-4817-b074-31cd658785fd/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3eea5cc-3eaf-4817-b074-31cd658785fd/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3eea5cc-3eaf-4817-b074-31cd658785fd/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3eea5cc-3eaf-4817-b074-31cd658785fd/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec7_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3eea5cc-3eaf-4817-b074-31cd658785fd/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3eea5cc-3eaf-4817-b074-31cd658785fd/bin/utaipan-verify-t7M7D8N6sZ --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 5f7b52dfa978a30892cebb35c28a84cc12db47d20591a31b18d58060a0678455 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:54:19,770 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:54:19,843 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3eea5cc-3eaf-4817-b074-31cd658785fd/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:54:19,849 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:54:19,849 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:54:19,879 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:54:19,880 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:54:19,881 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:54:19,881 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:54:19,882 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:54:19,883 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:54:19,883 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:54:19,884 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:54:19,884 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:54:19,885 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:54:19,886 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:54:19,886 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:54:19,887 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:54:19,888 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:54:19,888 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:54:19,889 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:54:19,890 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:54:19,891 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:54:19,891 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:54:19,892 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:54:19,893 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:54:19,893 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:54:19,894 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:54:19,894 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:54:19,895 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:54:19,895 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:54:19,896 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:54:19,896 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:54:19,897 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:54:19,897 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:54:19,898 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:54:19,898 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:54:19,899 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:54:19,899 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:54:19,899 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:54:19,900 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:54:19,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:54:19,900 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:54:19,901 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:54:19,901 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:54:19,901 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_d3eea5cc-3eaf-4817-b074-31cd658785fd/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3eea5cc-3eaf-4817-b074-31cd658785fd/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5f7b52dfa978a30892cebb35c28a84cc12db47d20591a31b18d58060a0678455 [2023-11-19 04:54:20,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:54:20,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:54:20,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:54:20,214 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:54:20,215 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:54:20,217 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3eea5cc-3eaf-4817-b074-31cd658785fd/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/product-lines/email_spec7_product34.cil.c [2023-11-19 04:54:23,440 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:54:23,819 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:54:23,820 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3eea5cc-3eaf-4817-b074-31cd658785fd/sv-benchmarks/c/product-lines/email_spec7_product34.cil.c [2023-11-19 04:54:23,844 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3eea5cc-3eaf-4817-b074-31cd658785fd/bin/utaipan-verify-t7M7D8N6sZ/data/454e1bca1/08eec5081448423d8a20fdced3f99548/FLAGc187554e1 [2023-11-19 04:54:23,859 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3eea5cc-3eaf-4817-b074-31cd658785fd/bin/utaipan-verify-t7M7D8N6sZ/data/454e1bca1/08eec5081448423d8a20fdced3f99548 [2023-11-19 04:54:23,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:54:23,864 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:54:23,865 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:54:23,866 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:54:23,871 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:54:23,872 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:54:23" (1/1) ... [2023-11-19 04:54:23,873 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bd8cc67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:23, skipping insertion in model container [2023-11-19 04:54:23,874 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:54:23" (1/1) ... [2023-11-19 04:54:23,945 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:54:24,335 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_d3eea5cc-3eaf-4817-b074-31cd658785fd/sv-benchmarks/c/product-lines/email_spec7_product34.cil.c[10988,11001] [2023-11-19 04:54:24,681 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:54:24,699 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:54:24,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-11-19 04:54:24,712 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [380] [2023-11-19 04:54:24,712 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptVerify_spec.i","") [528] [2023-11-19 04:54:24,712 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [547] [2023-11-19 04:54:24,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [556] [2023-11-19 04:54:24,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [922] [2023-11-19 04:54:24,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1324] [2023-11-19 04:54:24,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1359] [2023-11-19 04:54:24,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2428] [2023-11-19 04:54:24,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2445] [2023-11-19 04:54:24,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2842] [2023-11-19 04:54:24,754 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_d3eea5cc-3eaf-4817-b074-31cd658785fd/sv-benchmarks/c/product-lines/email_spec7_product34.cil.c[10988,11001] [2023-11-19 04:54:24,878 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:54:24,911 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:54:24,918 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:54:24,918 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:24 WrapperNode [2023-11-19 04:54:24,919 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:54:24,920 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:54:24,920 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:54:24,920 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:54:24,927 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:24" (1/1) ... [2023-11-19 04:54:24,960 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:24" (1/1) ... [2023-11-19 04:54:25,032 INFO L138 Inliner]: procedures = 134, calls = 234, calls flagged for inlining = 62, calls inlined = 59, statements flattened = 1093 [2023-11-19 04:54:25,033 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:54:25,033 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:54:25,034 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:54:25,034 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:54:25,044 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:24" (1/1) ... [2023-11-19 04:54:25,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:24" (1/1) ... [2023-11-19 04:54:25,054 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:24" (1/1) ... [2023-11-19 04:54:25,055 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:24" (1/1) ... [2023-11-19 04:54:25,085 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:24" (1/1) ... [2023-11-19 04:54:25,097 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:24" (1/1) ... [2023-11-19 04:54:25,103 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:24" (1/1) ... [2023-11-19 04:54:25,110 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:24" (1/1) ... [2023-11-19 04:54:25,122 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:54:25,136 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:54:25,136 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:54:25,137 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:54:25,137 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:24" (1/1) ... [2023-11-19 04:54:25,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:54:25,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3eea5cc-3eaf-4817-b074-31cd658785fd/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:54:25,186 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3eea5cc-3eaf-4817-b074-31cd658785fd/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:54:25,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3eea5cc-3eaf-4817-b074-31cd658785fd/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:54:25,233 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-11-19 04:54:25,234 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-11-19 04:54:25,234 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-11-19 04:54:25,234 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-11-19 04:54:25,234 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-19 04:54:25,234 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-19 04:54:25,235 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-11-19 04:54:25,235 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-11-19 04:54:25,235 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-19 04:54:25,235 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-19 04:54:25,235 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-19 04:54:25,236 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-19 04:54:25,236 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-19 04:54:25,236 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-19 04:54:25,236 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-19 04:54:25,237 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-19 04:54:25,237 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-19 04:54:25,237 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-19 04:54:25,240 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-19 04:54:25,240 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-19 04:54:25,240 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-11-19 04:54:25,240 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-11-19 04:54:25,240 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-19 04:54:25,241 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-19 04:54:25,241 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-19 04:54:25,243 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-19 04:54:25,243 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-19 04:54:25,243 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-19 04:54:25,244 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-19 04:54:25,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:54:25,244 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-11-19 04:54:25,244 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-11-19 04:54:25,245 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-11-19 04:54:25,245 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-11-19 04:54:25,245 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-11-19 04:54:25,245 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-11-19 04:54:25,246 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-19 04:54:25,246 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-19 04:54:25,246 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-19 04:54:25,246 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-19 04:54:25,246 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-19 04:54:25,246 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-19 04:54:25,247 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2023-11-19 04:54:25,247 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2023-11-19 04:54:25,247 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-11-19 04:54:25,247 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-11-19 04:54:25,272 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-19 04:54:25,273 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-19 04:54:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-19 04:54:25,273 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-19 04:54:25,274 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-19 04:54:25,280 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-19 04:54:25,280 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-19 04:54:25,280 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-19 04:54:25,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:54:25,281 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-19 04:54:25,281 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-19 04:54:25,281 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-11-19 04:54:25,281 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-11-19 04:54:25,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:54:25,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:54:25,551 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:54:25,560 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:54:26,627 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:54:27,469 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:54:27,470 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:54:27,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:54:27 BoogieIcfgContainer [2023-11-19 04:54:27,482 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:54:27,488 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:54:27,488 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:54:27,491 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:54:27,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:54:23" (1/3) ... [2023-11-19 04:54:27,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@728e11eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:54:27, skipping insertion in model container [2023-11-19 04:54:27,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:24" (2/3) ... [2023-11-19 04:54:27,496 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@728e11eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:54:27, skipping insertion in model container [2023-11-19 04:54:27,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:54:27" (3/3) ... [2023-11-19 04:54:27,497 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_product34.cil.c [2023-11-19 04:54:27,519 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:54:27,519 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:54:27,591 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:54:27,599 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;@30e2ea2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:54:27,600 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:54:27,607 INFO L276 IsEmpty]: Start isEmpty. Operand has 228 states, 128 states have (on average 1.2890625) internal successors, (165), 133 states have internal predecessors, (165), 70 states have call successors, (70), 28 states have call predecessors, (70), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2023-11-19 04:54:27,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-19 04:54:27,626 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:54:27,627 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] [2023-11-19 04:54:27,627 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:54:27,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:54:27,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1076360082, now seen corresponding path program 1 times [2023-11-19 04:54:27,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:54:27,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147735205] [2023-11-19 04:54:27,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:54:27,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:54:27,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:54:28,146 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 04:54:28,147 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:54:28,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147735205] [2023-11-19 04:54:28,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147735205] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:54:28,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:54:28,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:54:28,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719987722] [2023-11-19 04:54:28,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:54:28,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:54:28,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:54:28,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:54:28,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:54:28,214 INFO L87 Difference]: Start difference. First operand has 228 states, 128 states have (on average 1.2890625) internal successors, (165), 133 states have internal predecessors, (165), 70 states have call successors, (70), 28 states have call predecessors, (70), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 04:54:28,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:54:28,385 INFO L93 Difference]: Finished difference Result 364 states and 481 transitions. [2023-11-19 04:54:28,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:54:28,388 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 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 84 [2023-11-19 04:54:28,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:54:28,408 INFO L225 Difference]: With dead ends: 364 [2023-11-19 04:54:28,408 INFO L226 Difference]: Without dead ends: 225 [2023-11-19 04:54:28,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:54:28,424 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:54:28,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 258 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:54:28,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2023-11-19 04:54:28,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2023-11-19 04:54:28,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 126 states have (on average 1.2619047619047619) internal successors, (159), 130 states have internal predecessors, (159), 70 states have call successors, (70), 28 states have call predecessors, (70), 28 states have return successors, (69), 68 states have call predecessors, (69), 69 states have call successors, (69) [2023-11-19 04:54:28,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 298 transitions. [2023-11-19 04:54:28,517 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 298 transitions. Word has length 84 [2023-11-19 04:54:28,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:54:28,518 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 298 transitions. [2023-11-19 04:54:28,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 04:54:28,519 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 298 transitions. [2023-11-19 04:54:28,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-19 04:54:28,525 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:54:28,525 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:54:28,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:54:28,526 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:54:28,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:54:28,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1982698790, now seen corresponding path program 1 times [2023-11-19 04:54:28,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:54:28,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274291336] [2023-11-19 04:54:28,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:54:28,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:54:28,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:54:28,865 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 04:54:28,866 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:54:28,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274291336] [2023-11-19 04:54:28,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274291336] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:54:28,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:54:28,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:54:28,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201384284] [2023-11-19 04:54:28,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:54:28,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:54:28,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:54:28,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:54:28,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:54:28,875 INFO L87 Difference]: Start difference. First operand 225 states and 298 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 04:54:29,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:54:29,026 INFO L93 Difference]: Finished difference Result 360 states and 466 transitions. [2023-11-19 04:54:29,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:54:29,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 85 [2023-11-19 04:54:29,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:54:29,030 INFO L225 Difference]: With dead ends: 360 [2023-11-19 04:54:29,030 INFO L226 Difference]: Without dead ends: 227 [2023-11-19 04:54:29,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:54:29,033 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 0 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:54:29,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 509 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:54:29,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2023-11-19 04:54:29,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2023-11-19 04:54:29,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 128 states have (on average 1.2578125) internal successors, (161), 132 states have internal predecessors, (161), 70 states have call successors, (70), 28 states have call predecessors, (70), 28 states have return successors, (69), 68 states have call predecessors, (69), 69 states have call successors, (69) [2023-11-19 04:54:29,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 300 transitions. [2023-11-19 04:54:29,056 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 300 transitions. Word has length 85 [2023-11-19 04:54:29,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:54:29,057 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 300 transitions. [2023-11-19 04:54:29,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 04:54:29,057 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 300 transitions. [2023-11-19 04:54:29,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 04:54:29,060 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:54:29,061 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:54:29,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:54:29,061 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:54:29,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:54:29,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1492596940, now seen corresponding path program 1 times [2023-11-19 04:54:29,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:54:29,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79066178] [2023-11-19 04:54:29,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:54:29,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:54:29,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:54:29,255 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 04:54:29,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:54:29,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79066178] [2023-11-19 04:54:29,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79066178] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:54:29,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:54:29,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:54:29,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569206069] [2023-11-19 04:54:29,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:54:29,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:54:29,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:54:29,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:54:29,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:54:29,266 INFO L87 Difference]: Start difference. First operand 227 states and 300 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-19 04:54:29,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:54:29,444 INFO L93 Difference]: Finished difference Result 489 states and 667 transitions. [2023-11-19 04:54:29,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:54:29,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 101 [2023-11-19 04:54:29,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:54:29,450 INFO L225 Difference]: With dead ends: 489 [2023-11-19 04:54:29,450 INFO L226 Difference]: Without dead ends: 280 [2023-11-19 04:54:29,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:54:29,459 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 59 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:54:29,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 515 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:54:29,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-11-19 04:54:29,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 275. [2023-11-19 04:54:29,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 162 states have (on average 1.3333333333333333) internal successors, (216), 166 states have internal predecessors, (216), 84 states have call successors, (84), 28 states have call predecessors, (84), 28 states have return successors, (83), 82 states have call predecessors, (83), 83 states have call successors, (83) [2023-11-19 04:54:29,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 383 transitions. [2023-11-19 04:54:29,516 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 383 transitions. Word has length 101 [2023-11-19 04:54:29,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:54:29,518 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 383 transitions. [2023-11-19 04:54:29,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-19 04:54:29,519 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 383 transitions. [2023-11-19 04:54:29,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-19 04:54:29,523 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:54:29,524 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] [2023-11-19 04:54:29,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:54:29,525 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:54:29,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:54:29,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1173166648, now seen corresponding path program 1 times [2023-11-19 04:54:29,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:54:29,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724741818] [2023-11-19 04:54:29,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:54:29,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:54:29,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:54:29,862 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 04:54:29,862 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:54:29,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724741818] [2023-11-19 04:54:29,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724741818] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:54:29,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432822498] [2023-11-19 04:54:29,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:54:29,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:54:29,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3eea5cc-3eaf-4817-b074-31cd658785fd/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:54:29,866 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3eea5cc-3eaf-4817-b074-31cd658785fd/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:54:29,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3eea5cc-3eaf-4817-b074-31cd658785fd/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 04:54:30,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:54:30,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 1166 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:54:30,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:54:30,379 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 04:54:30,380 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:54:30,490 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 04:54:30,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432822498] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:54:30,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1520256123] [2023-11-19 04:54:30,517 INFO L159 IcfgInterpreter]: Started Sifa with 83 locations of interest [2023-11-19 04:54:30,517 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 04:54:30,521 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 04:54:30,528 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 04:54:30,528 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 04:55:19,744 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 235 for LOIs [2023-11-19 04:55:20,106 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-11-19 04:55:20,345 INFO L180 IcfgInterpreter]: Interpretation finished