./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec7_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f58ac5-cd12-4561-8308-530e1d64439c/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f58ac5-cd12-4561-8308-530e1d64439c/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f58ac5-cd12-4561-8308-530e1d64439c/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f58ac5-cd12-4561-8308-530e1d64439c/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec7_product32.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f58ac5-cd12-4561-8308-530e1d64439c/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f58ac5-cd12-4561-8308-530e1d64439c/bin/utaipan-verify-DbMuA5NWw2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ee2b8c4c449b1e8aa7dd92109d118d4c0b36a93d6052f04f0a75223fa59783b7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:27:38,946 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:27:39,047 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f58ac5-cd12-4561-8308-530e1d64439c/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 12:27:39,055 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:27:39,056 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:27:39,097 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:27:39,098 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:27:39,099 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:27:39,100 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:27:39,102 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:27:39,103 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:27:39,103 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:27:39,104 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:27:39,106 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:27:39,107 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:27:39,108 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:27:39,108 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:27:39,108 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:27:39,109 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:27:39,109 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:27:39,114 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:27:39,115 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:27:39,115 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:27:39,116 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:27:39,116 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:27:39,116 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:27:39,117 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:27:39,117 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:27:39,117 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:27:39,118 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:27:39,118 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:27:39,119 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:27:39,119 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:27:39,120 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:27:39,120 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:27:39,121 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:27:39,122 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:27:39,123 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:27:39,123 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:27:39,124 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:27:39,124 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:27:39,125 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:27:39,125 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:27:39,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:27:39,126 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:27:39,126 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:27:39,127 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:27:39,128 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_e2f58ac5-cd12-4561-8308-530e1d64439c/bin/utaipan-verify-DbMuA5NWw2/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f58ac5-cd12-4561-8308-530e1d64439c/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee2b8c4c449b1e8aa7dd92109d118d4c0b36a93d6052f04f0a75223fa59783b7 [2024-11-02 12:27:39,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:27:39,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:27:39,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:27:39,497 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:27:39,497 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:27:39,499 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f58ac5-cd12-4561-8308-530e1d64439c/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/product-lines/email_spec7_product32.cil.c Unable to find full path for "g++" [2024-11-02 12:27:41,442 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:27:41,794 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:27:41,795 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f58ac5-cd12-4561-8308-530e1d64439c/sv-benchmarks/c/product-lines/email_spec7_product32.cil.c [2024-11-02 12:27:41,832 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f58ac5-cd12-4561-8308-530e1d64439c/bin/utaipan-verify-DbMuA5NWw2/data/2a166b9ea/656a3c81a52746aabe90ea7a358dd383/FLAG0b02e7773 [2024-11-02 12:27:41,853 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f58ac5-cd12-4561-8308-530e1d64439c/bin/utaipan-verify-DbMuA5NWw2/data/2a166b9ea/656a3c81a52746aabe90ea7a358dd383 [2024-11-02 12:27:41,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:27:41,858 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:27:41,861 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:27:41,861 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:27:41,871 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:27:41,872 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:27:41" (1/1) ... [2024-11-02 12:27:41,874 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8e824dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:41, skipping insertion in model container [2024-11-02 12:27:41,874 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:27:41" (1/1) ... [2024-11-02 12:27:41,973 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:27:42,315 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f58ac5-cd12-4561-8308-530e1d64439c/sv-benchmarks/c/product-lines/email_spec7_product32.cil.c[6103,6116] [2024-11-02 12:27:42,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:27:42,789 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:27:42,803 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] [2024-11-02 12:27:42,805 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [208] [2024-11-02 12:27:42,806 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [225] [2024-11-02 12:27:42,806 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [263] [2024-11-02 12:27:42,806 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [272] [2024-11-02 12:27:42,807 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptVerify_spec.i","") [690] [2024-11-02 12:27:42,808 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [708] [2024-11-02 12:27:42,808 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1105] [2024-11-02 12:27:42,809 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1471] [2024-11-02 12:27:42,809 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1700] [2024-11-02 12:27:42,809 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2772] [2024-11-02 12:27:42,837 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f58ac5-cd12-4561-8308-530e1d64439c/sv-benchmarks/c/product-lines/email_spec7_product32.cil.c[6103,6116] [2024-11-02 12:27:42,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:27:43,016 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:27:43,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:43 WrapperNode [2024-11-02 12:27:43,021 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:27:43,022 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:27:43,022 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:27:43,023 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:27:43,038 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:43" (1/1) ... [2024-11-02 12:27:43,065 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:43" (1/1) ... [2024-11-02 12:27:43,135 INFO L138 Inliner]: procedures = 134, calls = 218, calls flagged for inlining = 61, calls inlined = 53, statements flattened = 974 [2024-11-02 12:27:43,135 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:27:43,136 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:27:43,136 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:27:43,136 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:27:43,158 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:43" (1/1) ... [2024-11-02 12:27:43,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:43" (1/1) ... [2024-11-02 12:27:43,168 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:43" (1/1) ... [2024-11-02 12:27:43,168 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:43" (1/1) ... [2024-11-02 12:27:43,208 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:43" (1/1) ... [2024-11-02 12:27:43,218 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:43" (1/1) ... [2024-11-02 12:27:43,234 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:43" (1/1) ... [2024-11-02 12:27:43,242 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:43" (1/1) ... [2024-11-02 12:27:43,258 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:27:43,259 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:27:43,260 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:27:43,260 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:27:43,261 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:43" (1/1) ... [2024-11-02 12:27:43,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:27:43,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f58ac5-cd12-4561-8308-530e1d64439c/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:27:43,357 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f58ac5-cd12-4561-8308-530e1d64439c/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:27:43,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f58ac5-cd12-4561-8308-530e1d64439c/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:27:43,406 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-02 12:27:43,406 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-02 12:27:43,407 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-02 12:27:43,407 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-02 12:27:43,407 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-02 12:27:43,407 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-02 12:27:43,408 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-02 12:27:43,408 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-02 12:27:43,408 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-02 12:27:43,408 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-02 12:27:43,409 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-02 12:27:43,409 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-02 12:27:43,410 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2024-11-02 12:27:43,410 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2024-11-02 12:27:43,410 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-02 12:27:43,410 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-02 12:27:43,410 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-02 12:27:43,410 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-02 12:27:43,410 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-02 12:27:43,412 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-02 12:27:43,413 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-02 12:27:43,413 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-02 12:27:43,413 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-02 12:27:43,413 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-02 12:27:43,413 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-02 12:27:43,413 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-02 12:27:43,414 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-02 12:27:43,414 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-02 12:27:43,414 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-02 12:27:43,414 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-02 12:27:43,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:27:43,414 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-02 12:27:43,414 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-02 12:27:43,415 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-02 12:27:43,415 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-02 12:27:43,415 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-02 12:27:43,415 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-02 12:27:43,415 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-02 12:27:43,415 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-02 12:27:43,415 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-02 12:27:43,416 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-02 12:27:43,416 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-02 12:27:43,416 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-02 12:27:43,416 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-02 12:27:43,416 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-02 12:27:43,416 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-02 12:27:43,416 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-02 12:27:43,417 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-02 12:27:43,417 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-02 12:27:43,417 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-02 12:27:43,417 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-02 12:27:43,417 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-02 12:27:43,417 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-02 12:27:43,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:27:43,417 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-02 12:27:43,417 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-02 12:27:43,417 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-02 12:27:43,418 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-02 12:27:43,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:27:43,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:27:43,734 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:27:43,737 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:27:45,261 INFO L? ?]: Removed 533 outVars from TransFormulas that were not future-live. [2024-11-02 12:27:45,262 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:27:46,204 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:27:46,207 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:27:46,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:27:46 BoogieIcfgContainer [2024-11-02 12:27:46,208 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:27:46,210 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:27:46,211 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:27:46,214 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:27:46,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:27:41" (1/3) ... [2024-11-02 12:27:46,219 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f58b3c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:27:46, skipping insertion in model container [2024-11-02 12:27:46,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:43" (2/3) ... [2024-11-02 12:27:46,220 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f58b3c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:27:46, skipping insertion in model container [2024-11-02 12:27:46,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:27:46" (3/3) ... [2024-11-02 12:27:46,221 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_product32.cil.c [2024-11-02 12:27:46,245 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:27:46,245 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:27:46,341 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:27:46,348 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@73304f05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:27:46,349 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:27:46,355 INFO L276 IsEmpty]: Start isEmpty. Operand has 216 states, 122 states have (on average 1.3032786885245902) internal successors, (159), 127 states have internal predecessors, (159), 64 states have call successors, (64), 28 states have call predecessors, (64), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-02 12:27:46,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-02 12:27:46,374 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:27:46,375 INFO L215 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] [2024-11-02 12:27:46,375 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:27:46,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:27:46,384 INFO L85 PathProgramCache]: Analyzing trace with hash 271016930, now seen corresponding path program 1 times [2024-11-02 12:27:46,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:27:46,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778312268] [2024-11-02 12:27:46,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:27:46,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:27:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:27:47,009 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-02 12:27:47,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:27:47,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778312268] [2024-11-02 12:27:47,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778312268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:27:47,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:27:47,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:27:47,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030132599] [2024-11-02 12:27:47,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:27:47,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 12:27:47,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:27:47,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 12:27:47,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:27:47,059 INFO L87 Difference]: Start difference. First operand has 216 states, 122 states have (on average 1.3032786885245902) internal successors, (159), 127 states have internal predecessors, (159), 64 states have call successors, (64), 28 states have call predecessors, (64), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) 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) [2024-11-02 12:27:47,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:27:47,285 INFO L93 Difference]: Finished difference Result 340 states and 445 transitions. [2024-11-02 12:27:47,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 12:27:47,288 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 [2024-11-02 12:27:47,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:27:47,313 INFO L225 Difference]: With dead ends: 340 [2024-11-02 12:27:47,313 INFO L226 Difference]: Without dead ends: 213 [2024-11-02 12:27:47,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:27:47,342 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:27:47,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 243 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:27:47,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-11-02 12:27:47,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2024-11-02 12:27:47,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 120 states have (on average 1.275) internal successors, (153), 124 states have internal predecessors, (153), 64 states have call successors, (64), 28 states have call predecessors, (64), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-02 12:27:47,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 280 transitions. [2024-11-02 12:27:47,444 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 280 transitions. Word has length 84 [2024-11-02 12:27:47,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:27:47,446 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 280 transitions. [2024-11-02 12:27:47,446 INFO L472 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) [2024-11-02 12:27:47,447 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 280 transitions. [2024-11-02 12:27:47,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-02 12:27:47,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:27:47,453 INFO L215 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] [2024-11-02 12:27:47,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:27:47,454 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:27:47,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:27:47,455 INFO L85 PathProgramCache]: Analyzing trace with hash 338646634, now seen corresponding path program 1 times [2024-11-02 12:27:47,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:27:47,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494181354] [2024-11-02 12:27:47,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:27:47,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:27:47,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:27:47,834 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-02 12:27:47,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:27:47,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494181354] [2024-11-02 12:27:47,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494181354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:27:47,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:27:47,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:27:47,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128494559] [2024-11-02 12:27:47,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:27:47,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:27:47,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:27:47,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:27:47,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:27:47,839 INFO L87 Difference]: Start difference. First operand 213 states and 280 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) [2024-11-02 12:27:48,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:27:48,085 INFO L93 Difference]: Finished difference Result 336 states and 430 transitions. [2024-11-02 12:27:48,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:27:48,088 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 [2024-11-02 12:27:48,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:27:48,090 INFO L225 Difference]: With dead ends: 336 [2024-11-02 12:27:48,090 INFO L226 Difference]: Without dead ends: 215 [2024-11-02 12:27:48,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:27:48,095 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 0 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:27:48,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 479 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:27:48,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-02 12:27:48,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2024-11-02 12:27:48,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 122 states have (on average 1.2704918032786885) internal successors, (155), 126 states have internal predecessors, (155), 64 states have call successors, (64), 28 states have call predecessors, (64), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-02 12:27:48,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 282 transitions. [2024-11-02 12:27:48,135 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 282 transitions. Word has length 85 [2024-11-02 12:27:48,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:27:48,137 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 282 transitions. [2024-11-02 12:27:48,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (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) [2024-11-02 12:27:48,138 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 282 transitions. [2024-11-02 12:27:48,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-02 12:27:48,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:27:48,145 INFO L215 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] [2024-11-02 12:27:48,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:27:48,145 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:27:48,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:27:48,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1533510972, now seen corresponding path program 1 times [2024-11-02 12:27:48,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:27:48,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846527920] [2024-11-02 12:27:48,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:27:48,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:27:48,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:27:48,373 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-02 12:27:48,373 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:27:48,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846527920] [2024-11-02 12:27:48,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846527920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:27:48,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:27:48,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:27:48,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147434766] [2024-11-02 12:27:48,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:27:48,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:27:48,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:27:48,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:27:48,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:27:48,377 INFO L87 Difference]: Start difference. First operand 215 states and 282 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-11-02 12:27:48,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:27:48,576 INFO L93 Difference]: Finished difference Result 465 states and 631 transitions. [2024-11-02 12:27:48,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:27:48,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 90 [2024-11-02 12:27:48,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:27:48,585 INFO L225 Difference]: With dead ends: 465 [2024-11-02 12:27:48,586 INFO L226 Difference]: Without dead ends: 268 [2024-11-02 12:27:48,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:27:48,588 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 59 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:27:48,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 482 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:27:48,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-02 12:27:48,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 263. [2024-11-02 12:27:48,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 156 states have (on average 1.3461538461538463) internal successors, (210), 160 states have internal predecessors, (210), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-02 12:27:48,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 365 transitions. [2024-11-02 12:27:48,662 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 365 transitions. Word has length 90 [2024-11-02 12:27:48,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:27:48,662 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 365 transitions. [2024-11-02 12:27:48,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-11-02 12:27:48,663 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 365 transitions. [2024-11-02 12:27:48,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-02 12:27:48,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:27:48,667 INFO L215 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] [2024-11-02 12:27:48,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 12:27:48,667 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:27:48,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:27:48,668 INFO L85 PathProgramCache]: Analyzing trace with hash -466139096, now seen corresponding path program 1 times [2024-11-02 12:27:48,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:27:48,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771849033] [2024-11-02 12:27:48,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:27:48,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:27:48,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:27:48,961 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-02 12:27:48,965 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:27:48,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771849033] [2024-11-02 12:27:48,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771849033] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:27:48,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960500514] [2024-11-02 12:27:48,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:27:48,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:27:48,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f58ac5-cd12-4561-8308-530e1d64439c/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:27:48,971 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f58ac5-cd12-4561-8308-530e1d64439c/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:27:48,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f58ac5-cd12-4561-8308-530e1d64439c/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:27:49,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:27:49,571 INFO L255 TraceCheckSpWp]: Trace formula consists of 1046 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:27:49,586 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:27:49,656 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-02 12:27:49,656 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:27:49,837 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-02 12:27:49,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960500514] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:27:49,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1305513802] [2024-11-02 12:27:49,869 INFO L159 IcfgInterpreter]: Started Sifa with 83 locations of interest [2024-11-02 12:27:49,870 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:27:49,874 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:27:49,880 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:27:49,881 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs